WO2012008101A1

WO2012008101A1 - Bobbin winding device

Info

Publication number: WO2012008101A1
Application number: PCT/JP2011/003621
Authority: WO
Inventors: 今村　裕司
Original assignee: 村田機械株式会社
Priority date: 2010-07-15
Filing date: 2011-06-24
Publication date: 2012-01-19
Also published as: JP5471923B2; CN103003176B; EP2594516A4; JP2012020852A; EP2594516A1; EP2594516B1; CN103003176A

Abstract

Provided is a bobbin winding device, wherein the degree of freedom with regard to the layout is improved and it is possible to guide a thread to a thread splicing device in a short time. An automatic winder is provided with a bobbin supporting unit (7), a thread storage device (18), a winding unit (8), a thread splicing device (14), and a needle thread guiding unit. The bobbin supporting unit (7) supports a thread supply bobbin (21). The thread storage device (18) stores a thread (20) unwound from the thread supply bobbin (21). The winding unit (8) forms a package (30) by winding the thread (20) stored in the thread storage device (18). The needle thread guiding unit pulls the thread from the thread storage device (18) and guides said thread to the thread splicing device (14). Moreover, the needle thread guiding unit is provided with a guiding tube (34) for pulling the thread (20) from the thread storage device (18) and for blowing said thread towards the bobbin supporting unit (7), and a needle thread capturing unit (13) for capturing the thread (20) blown by means of the guiding tube (34) and for introducing said thread to the thread splicing device (14).

Description

Yarn winding device

The present invention relates to a yarn winding device. Specifically, the present invention relates to a configuration for guiding a yarn to a yarn joining device at the time of yarn joining.

There is known a yarn winding device such as an automatic winder that removes a defect of a spun yarn wound around a yarn feeding bobbin and rewinds it to a winding package.

In the winding of yarn with an automatic winder, while applying tension to the spun yarn unwound from the yarn feeding bobbin, this spun yarn is guided to the traversing device via a number of yarn guides and the surface of the rotating winding package Then, the yarn is wound while traversing the yarn by the traverse device. Then, when the yarn supplying bobbin becomes empty, the empty yarn supplying bobbin is replaced with a new yarn supplying bobbin, the yarn joining is performed by the yarn joining device, and the winding onto the package is continued.

In order to perform yarn joining in the yarn joining device, it is necessary to guide the yarn on the package side and the yarn on the yarn feeding bobbin side to the yarn joining device. Conventionally, after a suction flow is generated at the tip of a pipe-shaped yarn guide member to suck and catch the yarn, the yarn guide member is rotated to guide the yarn to the yarn joining device.

The configuration of such a conventional automatic winder will be briefly described with reference to FIG. FIG. 19 is a schematic side view of a winder unit 90 included in a conventional automatic winder. The winder unit 90 is configured to rewind the spun yarn 20 of the yarn supplying bobbin 21 around the package 30. The winder unit 100 also includes a yarn joining device 14 for performing yarn joining and a yarn guide pipe (an upper yarn guide pipe 91 and a lower yarn guide pipe 92).

The

yarn guide pipes

91 and 92 are connected to a negative pressure source (not shown), and suction flows can be generated at the suction port 91a of the upper yarn guide pipe 91 and the suction port 92a of the lower yarn guide pipe 92, respectively. It is configured as follows. Further, the upper thread guide pipe 91 is configured to be able to turn up and down around the fulcrum 91b. Similarly, the lower thread guide pipe 92 is configured to be able to rotate up and down around a fulcrum 92b.

The yarn splicing operation in the conventional automatic winder as described above will be described. That is, when the continuous state of the yarn between the package 30 and the yarn feeding bobbin 21 is cut by replacing the yarn feeding bobbin 21 or the like, the yarn on the yarn feeding bobbin 21 side is sucked by the suction port 92a of the lower yarn guide pipe 92. Edge aspiration capture is performed. Subsequently, the upper thread guide pipe 91 is rotated upward and the package 30 is reversely rotated. As a result, the yarn end is pulled out from the package 30 and sucked into the suction port 91 a of the upper yarn guide pipe 91. The situation at this time is shown in FIG.

Next, as shown in FIG. 21, the upper thread guide pipe 91 in a state where the thread (upper thread) on the package 30 side is sucked and held is rotated downward. As a result, the upper thread on the package 30 side is introduced into the yarn joining device 14. Subsequently, as shown in FIG. 22, the lower thread guide pipe 92 in a state where the thread (lower thread) on the yarn supplying bobbin 21 side is sucked and held is rotated upward. As a result, the lower thread on the yarn feeding bobbin 21 side is introduced into the yarn joining device 14. By operating the yarn joining device 14 in this state, the yarn joining between the upper yarn and the lower yarn is executed, and the yarn is continuously between the package 30 and the yarn supplying bobbin 21. By performing the yarn splicing as described above, the winding of the yarn around the package 30 can be continued.

Thus, in the case of the conventional configuration in which the yarn end is guided by rotating the yarn guide member (yarn guide pipes 91 and 92), a mechanism for rotationally driving the yarn guide member is required. There was a problem of becoming complicated. Further, since the mechanism is complicated, it has been difficult to design a layout freely. In addition, the layout is limited in this respect because another configuration must be arranged so as to avoid interference with the rotating thread guide member. Further, since it takes a certain time to guide the yarn end by rotationally driving the yarn guide member, it takes a long time to join the yarn.

In this regard, as a configuration for guiding the yarn to a desired position, configurations other than the configuration in which the yarn guide member is rotationally driven as described above have been proposed.

For example, the traverse bobbin winder disclosed in Patent Document 1 includes a suction nozzle that sucks the yarn on the package side by negative pressure. A vertical slit is formed in the suction nozzle, and the yarn sucked by the suction nozzle is taken out from the vertical slit and guided to a yarn break removing device (yarn joining device) by a yarn gripping member. Thus, since it is comprised so that a thread | yarn may be taken out from a suction nozzle through a vertical slit, even if it does not rotate suction nozzle itself, the said suction | inhalation nozzle can guide the thread | yarn sucked to the yarn splicing device. it can.

On the other hand, the yarn supply processing device disclosed in Patent Document 2 generates a suction air flow in the vicinity of the introduction port of the weft length measuring storage device by blowing air from the blow nozzle, and introduces the yarn end into the yarn winding tube. Is configured to do. When the suction air flow is generated by the jet air in this way, the yarn end can be sucked by the suction air flow, and the yarn end is guided to the desired position by being put on the jet air flow. Can do. Therefore, there is no need to drive any member to guide the yarn end.

By adopting a configuration that guides the yarn with the configuration as described in Patent Document 1 and Patent Document 2, it is possible to omit a large-rotating thread guide member (such as the

thread guide pipes

91 and 92 in FIG. 19). It is considered that the degree of freedom of layout of each configuration can be improved by simplifying the above. Further, it is considered that the time required for guiding the yarn can be shortened as compared with the configuration in which the yarn guiding member is driven to guide the yarn.

JP-A-4-213563 JP-A-4-241136

By the way, Patent Document 1 is configured such that the yarn of the traverse bobbin is sucked by applying intake air to the suction nozzle in which the slit is formed. In this configuration, since air flows into the suction nozzle from the slit, there is a problem that the suction force at the tip of the suction nozzle is reduced and it is difficult to reliably suck and capture the yarn end. Further, in Patent Document 1, the suction nozzle has an inlet opening that is enlarged to the bobbin width (in this regard, the suction port 91a of the upper thread guide pipe 91 in FIG. 19 is the same). This is because it is uncertain where the yarn end to be sucked and captured is in the bobbin width direction of the traverse bobbin. Therefore, in order to reliably suck and capture the yarn end, the entire bobbin width of the traverse bobbin is used. This is because a suction air flow must be generated. However, when the inlet opening is formed large in this way, the suction force of the suction nozzle is further reduced.

In this regard, Patent Document 2 includes a feather belt that peels off the yarn end from the weft cheese and guides it to the introduction port. According to this configuration, since it is only necessary to suck the yarn end sent by the feather belt at the introduction port of the weft length measuring and storage device, it is not necessary to increase the width of the introduction port to the cheese width. Therefore, it is considered that the opening area of the introduction port can be made small, the strength of the suction flow generated at the introduction port can be maintained, and the reliability of suction and capture of the yarn can be improved. However, since the feather belt needs to be driven in a direction approaching or separating from the weft bobbin, the structure is complicated. In addition, since the feather belt adds a rubbing action to the cheese surface and may adversely affect the cheese shape, it is not preferable to employ the cheese (package) itself for an automatic winder or the like. . Furthermore, since the configuration disclosed in Patent Document 2 does not include a yarn joining device, it cannot be applied as it is to a yarn winding device equipped with a yarn joining device.

The present invention has been made in view of the above circumstances, and its main object is to provide a yarn winding device capable of improving the degree of freedom of layout and guiding the yarn to the yarn joining device in a short time. There is.

Means and effects for solving the problems

The problems to be solved by the present invention are as described above. Next, means for solving the problems and the effects thereof will be described.

According to an aspect of the present invention, a yarn winding device having the following configuration is provided. That is, the yarn winding device includes a bobbin support portion, a yarn accumulating device, a winding portion, a yarn joining device, and a yarn guide portion. The bobbin support part supports a yarn feeding bobbin. The yarn storage device stores the yarn unwound from the yarn supplying bobbin. The winding unit winds the yarn stored on the yarn storage device to form a package. The yarn splicing device splices the yarn on the yarn feeding bobbin side and the yarn on the yarn accumulating device side when the yarn is divided between the bobbin support portion and the yarn accumulating device. The yarn guide part draws a yarn from the yarn storage device and guides it to the yarn joining device. Further, the yarn guide portion includes a yarn drawing jetting portion, an air jetting portion, a yarn catching portion, and a yarn catching airflow generating portion. The yarn pull-out ejection unit draws the yarn stored in the yarn storage device and blows it off to the bobbin support unit side. The air ejection unit generates an air flow for drawing and blowing off the yarn at the yarn withdrawal ejection unit. The yarn catching portion is disposed between the yarn joining device and the bobbin support portion, and catches the yarn blown off by the yarn drawout jetting portion. The yarn catching air flow generating unit causes the yarn catching unit to generate an air flow for catching the yarn and introducing it into the yarn joining device.

Thus, by adopting a configuration in which the yarn is blown off by the blown air and guided to the yarn joining device, the configuration for guiding the yarn becomes simple, and as a result, the flexibility of the layout of each configuration is improved. Further, since the guide to the yarn joining device is completed simply by blowing off the yarn, the time required for the yarn guiding operation can be shortened and the production efficiency of the package can be improved. Also, if the yarn is pulled out from the package, a suction flow must be applied over the entire width of the package in order to reliably capture the yarn end, resulting in high energy consumption. In this respect, when the yarn is pulled out from the yarn accumulating device as described above, the suction end only has to be applied to a position where the position of the yarn end is known to exist, so that the yarn end can be surely used with less energy. Can be aspirated.

The above-described yarn winding device is preferably configured as follows. In other words, the yarn drawing and ejecting portion is a guide cylinder that guides the yarn on the yarn feeding bobbin side to the yarn accumulating device when winding the yarn. The air ejection part is an air ejection nozzle that ejects compressed air into the guide cylinder.

With this configuration, the yarn is stored in the yarn storage device via the guide cylinder. Therefore, when the yarn is pulled out from the yarn storage device, the yarn is reliably and smoothly stored by pulling the yarn through the guide cylinder. The thread can be withdrawn from the device. Therefore, by constructing the guide cylinder so as to also serve as the yarn pull-out jetting portion as described above, the yarn wound around the yarn accumulating device can be blown off reliably and smoothly.

The above-described yarn winding device preferably includes a deflection guide member that guides the yarn blown off by the yarn drawing-out ejection unit to the yarn catching unit.

In this way, by guiding the yarn blown off by the yarn drawing ejection portion to the yarn catching portion by the deflection guide member, the yarn withdrawal ejection portion and the yarn catching portion can be freely arranged, and the degree of freedom in layout Can be improved.

In the above-described yarn winding device, it is preferable that the deflection guide member is a cylindrical member, and a slit is formed along the longitudinal direction of the cylinder.

Thus, by making the deflection guide member cylindrical, the yarn can be reliably guided to the yarn catching portion so as to pass through the inside of the tube. Further, by providing a slit in the cylindrical deflection guide member, the yarn that has been guided to the yarn catcher can be taken out from the slit. Accordingly, since the yarn can be run outside the deflection guide member during normal winding, it is possible to prevent the yarn from coming into contact with the deflection guide member and deteriorating the quality.

In the above-described yarn winding device, it is preferable that the deflection guide member is provided at a position deviated from a traveling path along which the yarn travels when winding the yarn.

This prevents the yarn from coming into contact with the deflection guide member during normal winding and prevents the quality of the yarn from deteriorating.

The above-described yarn winding device is preferably configured as follows. That is, the yarn winding device includes a second yarn guide portion that guides the yarn of the yarn supplying bobbin to the yarn joining device. The second yarn guide portion includes a lower yarn blowing portion, a second yarn catching portion, and a second yarn catching airflow generating portion. The lower thread blowing section is disposed between the bobbin support section and the yarn joining device, and blows off the yarn of the yarn supplying bobbin to the vicinity of the yarn joining device. The second yarn catching unit is disposed between the yarn joining device and the yarn accumulating device, and catches the yarn blown off by the lower yarn blowing unit. The second yarn catching air flow generator generates an air flow for catching the yarn in the second yarn catching portion.

This allows the yarn on the yarn feeding bobbin side to be blown off and guided to the yarn joining device. Accordingly, the degree of freedom in layout of each component of the yarn winding device can be further improved, and the time required for piecing can be further reduced.

The above-described yarn winding device preferably includes a driving unit capable of driving the second yarn catching unit in a direction approaching or separating from the yarn traveling path.

Thereby, the second yarn catching portion can be moved to a position where it is easy to catch the yarn (position approaching the yarn travel path).

The above-described yarn winding device is preferably configured as follows. That is, the yarn winding device includes a control unit that controls the operation of the drive unit. The control unit causes the second yarn catching unit to approach the yarn traveling path during normal winding, and separates the second yarn catching unit that has captured the yarn from the yarn traveling path during yarn joining. By driving in the direction, the captured yarn is introduced into the yarn joining device.

Thus, during normal winding, the second yarn catching portion is kept close to the yarn travel path, so that the fluff adhering to the yarn can be removed by suction. On the other hand, when the second yarn catcher catches the yarn, the yarn can be introduced into the yarn joining device by driving the second yarn catcher away from the yarn travel path.

The above-described yarn winding device is preferably configured as follows. That is, the yarn winding device includes a control unit that controls the yarn joining device, the yarn drawing-out ejection unit, and the lower yarn blowing unit. When a new yarn supplying bobbin is supplied to the bobbin support unit, the control unit blows off the yarn of the new yarn supplying bobbin by the lower yarn blowing unit, and causes the second yarn catching unit to capture the blown yarn. Then, the second yarn catching portion is driven in a direction away from the yarn traveling path. Also, before or after this, or simultaneously with this, the control unit pulls out and blows off the yarn on the yarn storage device by the yarn drawing-out jetting unit and causes the yarn catching unit that has blown off to catch the yarn. Thereafter, the control unit operates the yarn joining device to perform yarn joining.

Thereby, when the yarn feeding bobbin is replaced, the yarn on the yarn feeding bobbin side and the yarn on the yarn storage device side can be guided to the yarn joining device to perform the yarn joining.

The above-described yarn winding device is preferably configured as follows. That is, the yarn winding device includes a yarn defect detection device and a cutter that cuts the yarn between the yarn feeding bobbin and the yarn storage device at a position downstream of the second yarn catching unit. . When a yarn defect is detected by the yarn defect detection device, the control unit operates the cutter to cut the yarn, and causes the second yarn catching unit to catch the yarn on the yarn feeding bobbin side, The second yarn catcher is driven in a direction away from the yarn travel path. Further, at the same time or at the same time, the control unit pulls out and blows off the yarn on the yarn accumulating device by the yarn drawing-out ejection unit, and causes the yarn catching unit to capture the blown-off yarn. Thereafter, the control unit operates the yarn joining device to perform yarn joining.

Thereby, when the yarn in which the yarn defect is detected is cut, the yarn on the yarn feeding bobbin side and the yarn on the yarn storage device side can be guided to the yarn joining device to perform the yarn joining.

It is a typical side view of the winder unit with which the automatic winder which concerns on 1st Embodiment of this invention was equipped. It is a figure explaining the structure of a thread | yarn storage apparatus. It is a figure which shows a mode when a yarn feeding bobbin becomes empty. It is a figure which shows a mode when a new yarn feeding bobbin is supplied. It is a figure which shows a mode when a lower thread is introduce | transduced into the lower thread blowing-up part. It is a schematic external perspective view of a lower thread blowing part. It is side surface partial sectional drawing which shows the structure of a bobbin thread blowing part. It is a figure which shows a mode when a yarn trap sucks and captures a lower thread. It is a figure which shows a mode when a lower thread is introduce | transduced into the yarn joining apparatus. It is an external appearance perspective view which shows the structure of a deflection | deviation guide member. It is a figure which shows a mode that an upper thread is guided by the deflection | deviation guide member. It is a figure which shows a mode when an upper thread | yarn is taken out from a deflection | deviation guide member. It is a figure which shows a mode when an upper thread | yarn is introduced into the yarn joining apparatus. It is a figure which shows the modification of 1st Embodiment. It is a typical side view of the winder unit with which the automatic winder which concerns on 2nd Embodiment of this invention was equipped. It is a figure explaining the structure of the yarn storage apparatus with which the winder unit of 2nd Embodiment was provided. It is the winder unit with which the automatic winder which concerns on the modification of 2nd Embodiment was equipped. It is a figure which shows the structure of the yarn storage apparatus with which the winder unit which concerns on the modification of 2nd Embodiment was provided. It is a typical side view of the winder unit with which the conventional automatic winder was equipped. It is a figure which shows a mode when the upper thread | yarn and lower thread | yarn are suction-captured in the conventional winder unit. It is a figure which shows a mode when an upper thread | yarn is introduce | transduced into the yarn splicing apparatus in the conventional winder unit. It is a figure which shows a mode when a lower thread | yarn is introduce | transduced into the yarn splicing apparatus in the conventional winder unit.

Next, an embodiment of the present invention will be described. FIG. 1 is a schematic side view of a winder unit 2 provided in an automatic winder (yarn winding device) according to a first embodiment of the present invention. The automatic winder of this embodiment has a configuration in which a large number of winder units 2 are arranged side by side. The automatic winder includes an unillustrated machine base management device for centrally managing the winder unit 2 and an unillustrated blower box including a compressed air source and a negative pressure source.

As shown in FIG. 1, the winder unit 2 mainly includes a bobbin support portion 7 and a winding portion 8. The winder unit 2 is configured to unwind the yarn (spun yarn) 20 of the yarn feeding bobbin 21 supported by the bobbin support portion 7 and to wind it around the package 30. FIG. 1 shows a state of the winder unit 2 during normal winding. In this specification, “at the time of normal winding” means that the yarn is in a continuous state between the yarn supplying bobbin 21 and the package 30 and the yarn is unwound from the yarn supplying bobbin 21 so that the yarn is fed to the package 30. The state being wound.

The bobbin support portion 7 is configured to be able to hold the yarn feeding bobbin 21 in a substantially upright state. Further, the bobbin support portion 7 is configured so that the yarn feeding bobbin 21 that has been emptied can be discharged. The winding unit 8 includes a cradle 23 configured to be capable of mounting the winding bobbin 22, and a traverse drum 24 for traversing the yarn 20 and driving the winding bobbin 22.

The traverse drum 24 is disposed opposite to the winding bobbin 22, and the winding bobbin 22 is driven to rotate by rotating the traverse drum 24. Thereby, the yarn 20 stored in the yarn storage device 18 described later can be wound on the winding bobbin 22. Further, a traverse groove (not shown) is formed on the outer peripheral surface of the traverse drum 24, and the traverse (traverse) of the yarn 20 with a predetermined width can be performed by the traverse groove. With the above configuration, the yarn 20 can be wound around the take-up bobbin 22 while traversing to form a package 30 having a predetermined length and a predetermined shape. In the following description, the terms “upstream” and “downstream” refer to the upstream and downstream sides when viewed in the yarn traveling direction.

Each winder unit 2 includes a control unit 25. The control unit 25 includes hardware such as a CPU, ROM, and RAM (not shown) and software such as a control program stored in the RAM. The hardware and software cooperate to control each configuration of the winder unit 2. Moreover, the control part 25 with which each winder unit 2 is provided is comprised so that communication with the said machine stand management apparatus is possible. As a result, the operations of the plurality of winder units 2 included in the automatic winder can be centrally managed in the machine management device.

Further, the winder unit 2 includes various devices in the yarn traveling path between the bobbin support portion 7 and the winding portion 8. Specifically, in the yarn traveling path, in order from the bobbin support portion 7 side to the winding portion 8 side, the unwinding assisting device 10, the lower yarn blowing portion (yarn suction ejection portion) 11, A tension applying device 12, an upper yarn catching portion (yarn catching portion) 13, a yarn joining device 14, a yarn trap (second yarn catching portion) 15, a cutter 16, a clearer (yarn defect detecting device) 17, The upper thread drawing portion 48 and the yarn accumulating device 18 are disposed.

The unwinding assisting device 10 brings the movable member 40 into contact with the balloon formed on the upper portion of the yarn supplying bobbin 21 by swinging the yarn 20 to be unwound from the yarn supplying bobbin 21, and appropriately sets the size of the balloon. This is for assisting the unwinding of the yarn 20 by controlling.

The lower thread blowing section 11 is an air soccer device arranged between the bobbin support section 7 and the yarn joining device 14 (more precisely, immediately downstream of the unwinding assisting device 10). The lower thread on the yarn feeding bobbin 21 side is configured to blow up toward the yarn joining device 14 (details will be described later).

The tension applying device 12 applies a predetermined tension to the traveling yarn 20. The tension applying device 12 of this embodiment is configured as a gate type in which movable comb teeth are arranged with respect to fixed comb teeth. The movable comb teeth are configured to be rotatable by a rotary solenoid so that the comb teeth are in a meshed state or a released state. However, the configuration of the tension applying device 12 is not limited to this, and may be, for example, a disk-type tension applying device.

The upper thread catching portion 13 is disposed between the yarn joining device 14 and the bobbin support portion 7 (more precisely, immediately upstream of the yarn joining device 14). The upper yarn catching unit 13 is connected to a negative pressure source (yarn catching air flow generating unit) (not shown) so as to generate a suction air flow at the time of yarn joining so as to suck and catch the upper yarn on the yarn storage device 18 side. (Details will be described later).

The yarn trap 15 is disposed between the yarn joining device 14 and the yarn accumulating device 18 (more precisely, on the upstream side of the cutter 16 and immediately downstream of the yarn joining device 14). The tip of the yarn trap 15 is formed as a cylindrical member, is provided close to the traveling path of the yarn 20, and is connected to a negative pressure source (second yarn catching airflow generating portion) (not shown). Has been. With this configuration, a suction air flow is generated at the tip of the yarn trap 15, and dust such as fluff adhering to the traveling yarn 20 can be sucked and removed.

The clearer 17 is configured to detect a yarn defect (yarn defect) such as a slab by monitoring the thickness of the yarn 20. When the clearer 17 detects a yarn defect, the clearer 17 transmits a division signal instructing cutting and removal of the yarn defect to the control unit 25 or the like. In the vicinity of the clearer 17, a cutter 16 for cutting the yarn 20 immediately in accordance with the dividing signal is arranged.

The yarn splicing device 14 is used when the clearer 17 detects a yarn defect and cuts the yarn with the cutter 16, when the yarn being unwound from the yarn feeding bobbin 21 is broken, or when the yarn feeding bobbin 21 is replaced. In such a case, when the yarn between the yarn feeding bobbin 21 and the package 30 is in a split state, the lower yarn on the yarn feeding bobbin 21 and the upper yarn on the yarn storage device 18 side are spliced. . As such a yarn splicing device 14, a device using a fluid such as compressed air or a mechanical device can be used.

The upper thread drawing portion 48 is an air soccer device, and includes a guide tube 34 (yarn pulling ejection portion) that pulls out the upper yarn on the yarn storage device 18 side and blows it toward the bobbin support portion 7 side at the time of yarn joining. (Details will be described later).

The yarn storage device 18 is configured to be able to temporarily store the yarn 20 unwound from the yarn supply bobbin 21. Thus, since the yarn storage device 18 is interposed between the bobbin support portion 7 and the winding portion 8 and a certain amount of yarn 20 is stored on the yarn storage device 18, the yarn supply bobbin for some reason. Even when the unwinding of the yarn from 21 is interrupted (for example, during the yarn joining operation), the winding unit 8 can wind the yarn stored on the yarn storage device 18, The winding of the yarn 20 around the package 30 can be continued. Thus, since the winding operation in the winding unit 8 is not interrupted by the yarn joining operation or the like, the package 30 can be generated at high speed and stably. Further, unlike the conventional yarn winding device, the yarn is not sucked and captured from the package 30 every yarn splicing operation, so that the surface of the package 30 can be prevented from being disturbed. Furthermore, since the occurrence of yarn breakage at the winding unit 8 is reduced, it is possible to prevent the yarn from falling on the end face of the package 30 or causing a winding shape defect.

Further, a magazine type bobbin supply device 26 is disposed on the front side of the winder unit 2. The bobbin supply device 26 includes a rotary magazine can 27. The magazine can 27 is configured to hold a plurality of spare yarn feeding bobbins 21. The bobbin supply device 26 is configured to supply a new yarn supplying bobbin 21 to the bobbin support portion 7 by intermittently rotating the magazine can 27. The bobbin supply device 26 includes a yarn end holding unit 28 that sucks and holds the yarn end of the yarn feeding bobbin 21 held by the magazine can 27.

Next, the yarn accumulating device 18 will be described with reference to FIG. As shown in FIG. 2, the yarn storage device 18 mainly includes a yarn storage roller 32 and a roller drive motor 33.

The yarn storage roller 32 is formed as a substantially cylindrical member, and is configured so that the yarn 20 can be stored by winding the yarn 20 around the outer peripheral surface thereof. The roller drive motor 33 is configured to rotationally drive the yarn accumulating roller 32 about its central axis. The operation of the roller drive motor 33 is controlled by the control unit 25. Here, the end of the yarn accumulating roller 32 on the side where the roller drive motor 33 is disposed is referred to as a base end, and the opposite end is referred to as a front end.

As shown in FIG. 2, a taper-like base end side taper portion 32a whose diameter increases toward the end portion is formed at the base end portion of the yarn accumulating roller 32. On the other hand, a tapered tip side taper portion 32 b whose diameter increases toward the end portion is formed at the tip portion of the yarn accumulating roller 32. By forming the taper portion in this manner, the yarn 20 is prevented from slipping from the end portion of the yarn accumulating roller 32. In addition, a portion (a portion having a substantially constant diameter) formed in a cylindrical shape in the yarn accumulating roller 32 is referred to as a cylindrical portion 32c. The cylindrical portion 32c is also formed with a small taper for moving the stored yarn to the downstream side.

A guide tube 34 of the upper thread drawing portion 48 is disposed in the vicinity of the boundary portion between the proximal end taper portion 32a and the cylindrical portion 32c of the yarn accumulating roller 32 (note that the configuration of the upper yarn drawing portion 48 will be described later). To do). The guide cylinder 34 is configured as a cylindrical member, and one end portion (suction side end portion 34 a) thereof is disposed close to the surface of the yarn accumulating roller 32. During normal winding, the yarn on the yarn supplying bobbin 21 side is introduced into the guide tube 34 from the other end (ejection side end 34b) of the guide tube 34, and from the suction side end 34a. The yarn is drawn toward the surface of the yarn accumulating roller 32. As described above, during normal winding, the yarn 20 on the yarn feeding bobbin 21 side is guided to the surface of the yarn accumulating roller 32 by the guide tube 34.

By rotating the yarn storage roller 32 in one direction while the yarn 20 is wound around the yarn storage roller 32, tension is applied to the yarn 20 on the upstream side (yarn supply bobbin 21 side) of the yarn storage device 18. can do. Thereby, the yarn 20 can be unwound from the yarn supplying bobbin 21 and the yarn 20 can be wound around the surface of the yarn accumulating roller 32. As shown in FIG. 2, since the yarn 20 is guided to the boundary portion between the proximal end side tapered portion 32a and the cylindrical portion 32c, the yarn 20 is sequentially wound while pushing up the previous yarn layer from the proximal end portion side of the cylindrical portion 32c. To go. As a result, the yarn 20 on the yarn accumulating roller 32 is pushed by the newly wound yarn 20 and sequentially fed toward the tip end side on the surface of the cylindrical portion 32c. In this way, on the outer peripheral surface of the yarn accumulating roller 32, the yarns 20 are spirally aligned and wound regularly from the base end side. In the following description, rotating the yarn accumulating roller 32 during normal winding is referred to as “forward rotation”. Further, when the yarn accumulating roller 32 is rotated in the direction opposite to the normal rotation is referred to as “reverse rotation”.

On the other hand, the yarn 20 on the yarn accumulating roller 32 is drawn out from the tip side taper portion 32b of the yarn accumulating roller 32 and sent to the downstream side (winding portion 8 side). Further, in the tip side taper portion 32b, the yarn 20 on the yarn accumulating roller 32 is drawn to the downstream side via a drawing guide 37 disposed on an extension line of the central axis of the yarn accumulating roller 32. . In this way, by configuring the yarn 20 to be drawn out on the extension line of the central axis of the yarn storage roller 32, the yarn 20 can be drawn from the yarn storage roller 32 regardless of the rotation state of the yarn storage roller 32. it can. That is, even when the yarn accumulating roller 32 is in the normal rotation, reverse rotation, or rotation stopped state, the winding unit 8 can unwind the yarn 20 from the yarn accumulating roller 32 and wind it around the package 30.

A rubber band (O-ring) 32d is disposed at the boundary between the cylindrical portion 32c and the tip side taper portion 32b of the yarn accumulating roller 32, and passes between the rubber band 32d and the surface of the yarn accumulating roller 32. The yarn 20 is pulled out from the yarn storage roller 32. The rubber band 32d itself is prevented by the tip side taper portion 32b from being pulled off by the thread. With the configuration described above, an appropriate tension can be applied to the yarn 20 unwound from the yarn accumulating roller 32 by tightening the rubber band 32d against the yarn accumulating roller 32, so that the unraveling of the yarn 20 can be stabilized. Can do. Furthermore, since the yarn lump can be unwound and unwound, the problem of sluffing that the yarn on the yarn storage roller 32 becomes a lump and comes off at once can be prevented. In addition, there is also an action that does not generate balloons generated by swinging when the yarn is unwound.

In the vicinity of the yarn accumulating roller 32, there is an upper limit sensor 36 for detecting that the yarn 20 on the yarn accumulating roller 32 has exceeded a predetermined upper limit amount, and a lower limit sensor for detecting that the yarn 20 has become less than a predetermined lower limit amount. 35 are arranged. The detection results of the lower limit sensor 35 and the upper limit sensor 36 are sent to the control unit 25.

When the controller 25 detects that the yarn on the yarn accumulating roller 32 is less than the lower limit, the controller 25 appropriately controls the roller drive motor 33 to increase the rotational speed of the yarn accumulating roller 32. Thereby, the speed at which the yarn 20 is wound around the yarn accumulating roller 32 increases. On the other hand, during normal winding, the rotational speed of the traverse drum 24 is substantially constant, so the speed at which the yarn 20 on the yarn accumulating roller 32 is unwound toward the package 30 is substantially constant. The controller 25 controls the roller drive motor 33 so that the speed at which the yarn 20 is wound around the yarn storage roller 32 is larger than the speed at which the yarn 20 is unwound from the yarn storage roller 32. Thus, the storage amount of the yarn 20 on the yarn storage roller 32 can be gradually increased.

On the other hand, when the control unit 25 detects that the yarn on the yarn accumulating roller 32 exceeds the upper limit, the controller 25 appropriately controls the roller drive motor 33 to reduce the rotational speed of the yarn accumulating roller 32. Thereby, the speed at which the yarn 20 is wound around the yarn accumulating roller 32 is reduced. The control unit 25 controls the roller drive motor 33 so that the speed at which the yarn 20 is wound around the yarn storage roller 32 is smaller than the speed at which the yarn 20 is unwound from the yarn storage roller 32. Thus, the amount of the yarn 20 on the yarn accumulating roller 32 can be gradually reduced. By the control as described above, the storage amount of the yarn 20 on the yarn storage roller 32 can be maintained at a value not less than the lower limit amount and less than the upper limit amount.

Next, the replacement operation of the yarn feeding bobbin 21 will be described.

When there is no yarn in the yarn supplying bobbin 21, all the yarn remaining in the yarn supplying bobbin 21 is taken up by the yarn accumulating device 18, and as shown in FIG. 3, the yarn supplying bobbin 21 (empty bobbin) And the yarn storage device 18 are in a discontinuous state. Therefore, in order to continue winding the yarn 20, it is necessary to connect (yarn splice) the yarn on the new yarn feeding bobbin 21 and the yarn on the yarn storage device 18 after supplying the new yarn feeding bobbin 21. There is. Even if the yarn supplying bobbin 21 becomes empty, the yarn storage device 18 stores a predetermined amount of yarn 20, so that the package 30 in the winding unit 8 is used until the stored yarn 20 disappears. There is no need to interrupt the winding of the yarn 20 onto the thread. Hereinafter, the exchange operation of the yarn feeding bobbin 21 will be described in order.

First, the control unit 25 discharges the bobbin that has been emptied by driving the bobbin support unit 7. Subsequently, the control unit 25 supplies the new yarn supplying bobbin 21 to the bobbin support unit 7 by driving the magazine can 27 of the bobbin supply device 26. At this time, as shown in FIG. 4, the new yarn supplying bobbin 21 is supplied in an oblique state. As described above, since the yarn end of the yarn feeding bobbin 21 held by the magazine can 27 is sucked and held by the yarn end holding portion 28, the yarn feeding bobbin 21 supplied from the magazine can 27, The yarn 20 is pulled between the yarn end holding portion 28 and the yarn end holding portion 28. In the following description, the thread 20 on the yarn feeding bobbin 21 side is referred to as a lower thread 20a when particularly necessary.

Subsequently, as shown in FIG. 5, the control unit 25 drives the bobbin support unit 7 to erect the new yarn feeding bobbin 21 and drives the yarn moving member 43 disposed in the vicinity of the lower yarn blowing unit 11. To do. The yarn shifting member 43 is configured to be able to engage with the lower yarn 20 a between the yarn supplying bobbin 21 and the yarn end holding portion 28 and to be movable toward the lower yarn blowing portion 11. Then, by driving the yarn shifting member 43 in a state of being engaged with the lower yarn 20a, the lower yarn 20a can be moved toward the lower yarn blowing portion 11 as shown in FIG. It is configured.

The lower thread blowing portion 11 is formed in a block shape as shown in the external perspective view of FIG. In the block, a thread introduction hole 41 and a slit 42 communicating with the thread introduction hole 41 are formed. The lower thread 20a attracted by the thread gathering member 43 is introduced into the thread introduction hole 41 through the slit 42.

Here, the lower thread blowing section 11 will be described in more detail with reference to a partial cross-sectional view of FIG. As shown in FIG. 7, the lower thread blowing section 11 is formed with an air ejection nozzle 44 that communicates with the thread introduction hole 41. The air jet nozzle 44 is configured as a long and narrow round hole. The air ejection nozzle 44 is connected to an appropriate compressed air source 46 via an electromagnetic valve 45. The electromagnetic valve 45 is controlled by the control unit 25. With the above configuration, when the control unit 25 opens the electromagnetic valve 45, compressed air is supplied from the air ejection nozzle 44 into the yarn introduction hole 41.

The ejection port of the air ejection nozzle 44 is formed so as to eject air toward the downstream side in the traveling direction of the yarn 20. Therefore, when compressed air is ejected from the air ejection nozzle 44, an air flow that flows toward the downstream side in the traveling direction of the yarn 20 (upward in FIG. 7) is generated in the yarn introduction hole 41. Thereby, the lower thread 20a introduced into the thread introduction hole 41 can be blown away toward the downstream side on the air flow.

The continuation of the yarn feeding bobbin 21 replacement operation will be described. When the lower yarn 20a is introduced into the yarn introduction hole 41 by the yarn shifting member 43, the control unit 25 cuts the lower yarn 20a between the yarn supplying bobbin 21 and the yarn end holding unit 28 with a cutter (not shown). Then, the solenoid valve 45 is opened to supply compressed air to the air ejection nozzle 44. Thereby, an air flow toward the downstream side is generated in the yarn introduction hole 41, and the lower yarn 20a is blown off toward the downstream side by the air flow.

The yarn trap 15 described above is disposed downstream of the lower thread blow-up unit 11, and a suction flow is generated at the tip thereof. The lower yarn 20 a blown off from the lower yarn blowing section 11 is sucked and captured by the yarn trap 15. The state at this time is shown in FIG.

In the vicinity of the yarn trap 15, a yarn trap driving unit 47 capable of driving the yarn trap 15 in a direction approaching / separating from the yarn traveling path is disposed. The operation of the yarn trap driving unit 47 is controlled by the control unit 25. When the yarn trap 15 sucks and captures the lower yarn 20a, the control unit 25 operates the yarn trap driving unit 47 to drive the yarn trap 15 away from the yarn travel path. Accordingly, as shown in FIG. 9, the lower thread 20 a is configured to be introduced into the yarn joining device 14. As described above, since the lower thread 20a can be introduced into the yarn joining device 14 by the lower thread blowing section 11 and the yarn trap 15, suction air is supplied to the lower thread blowing section 11, the yarn trap 15, and the yarn trap 15. It can be said that the negative pressure source generating the flow constitutes a lower thread guide part (second thread guide part).

As described above, since the lower yarn 20a is blown off by the air flow and guided to the downstream side of the yarn joining device 14, for example, the lower yarn guide member provided in the conventional winder unit (lower yarn guide pipe 92 in FIG. 19). ) And can guide the lower thread quickly. In addition, the control part 25 will be in the state which closed the solenoid valve 45, after the operation | movement which guides the lower thread 20a to the yarn splicing apparatus 14 is complete | finished. Thereby, it can prevent that compressed air is consumed wastefully.

Further, the control unit 25 performs control for guiding the yarn on the yarn storage device 18 side to the yarn joining device 14 before and after the above-described control for guiding the lower yarn 20a to the yarn joining device 14. This will be specifically described below. In the following description, when particularly necessary, the yarn 20 on the yarn storage device 18 side is referred to as an upper yarn 20b.

First, the upper thread drawing portion 48 will be described with reference to FIG. The upper thread drawing portion 48 includes the above-described guide tube 34 (yarn draw-out jet portion) and an air jet nozzle (air jet portion) 49 communicating with the inside of the guide tube 34. The air ejection nozzle 49 is formed as a long and narrow round hole. The air ejection nozzle 49 is connected to an appropriate compressed air source 46 via the electromagnetic valve 51. The electromagnetic valve 51 is controlled by the control unit 25. With the above configuration, when the control unit 25 opens the solenoid valve 51, compressed air is supplied from the air ejection nozzle 49 into the guide tube 34.

The ejection port of the air ejection nozzle 49 is formed so as to eject air toward the ejection side end 34b (so that air is ejected in a direction away from the surface of the yarn accumulating roller 32). Therefore, when compressed air is ejected from the air ejection nozzle 49, an air flow that flows toward the ejection side end 34 b is generated in the guide cylinder 34. As a result, air is ejected from the ejection side end portion 34b. On the other hand, a suction flow is generated at the opposite end portion (suction side end portion 34a) following the flow of air in the guide tube 34.

When guiding the upper yarn 20b on the yarn storage device 18 side to the yarn joining device 14, the control unit 25 opens the electromagnetic valve 51 and supplies compressed air from the air ejection nozzle 49 into the guide tube 34. To do. In this state, the control unit 25 controls the roller drive motor 33 to rotate the yarn accumulating roller 32 in the reverse direction. Thereby, the yarn end is unwound from the base end portion side of the cylindrical portion 32c of the yarn accumulating roller 32, and the yarn end is sucked by the suction flow generated at the suction side end portion 34a of the guide tube 34, It is introduced into the guide tube 34.

In the conventional automatic winder as shown in FIG. 19, the upper yarn guide pipe 91 for sucking and capturing the yarn end wound around the package 30 needs a suction port 91a enlarged in the width direction of the package. there were. This is because traversing is performed when winding the yarn around the surface of the package 30, so that the clearer 17 detects the yarn defect and cuts the yarn with the cutter 16, or all the yarn on the yarn supplying bobbin 21 is wound. After being taken, since it is not known where the yarn end of the yarn wound around the package 30 is in the width direction of the package 30, the width direction of the package 30 is surely sucked and captured. This is because it was necessary to generate a suction flow over the entire area.

In this regard, in the automatic winder of the present embodiment, the yarn 20 is regularly wound on the yarn accumulating roller 32 so as to be aligned from the boundary portion between the cylindrical portion 32c and the proximal end side tapered portion 32a. This is because the yarn on the yarn feeding bobbin 21 side is guided to the boundary portion between the cylindrical portion 32c and the proximal end side tapered portion 32a by the guide tube 34 during normal winding. Therefore, after the clearer 17 detects the yarn defect and cuts the yarn with the cutter 16, or after all the yarn on the yarn feeding bobbin 21 is wound up, the yarn end of the yarn taken up by the yarn accumulating roller 32 is Since it must be in the vicinity of the boundary portion between the cylindrical portion 32c and the proximal end side tapered portion 32a, the yarn end can be reliably sucked if a suction flow is generated only in the boundary portion. That is, by generating a suction flow in the guide tube 34, the yarn end can be reliably sucked. As described above, the automatic winder of the present embodiment provided with the yarn accumulating device 18 does not require an enlarged suction port for sucking the upper yarn as in the conventional configuration, and therefore, for sucking the upper yarn. Sufficient suction flow can be generated with less energy.

The yarn end sucked into the guide tube 34 is blown out from the ejection side end portion 34b on the air flow generated in the guide tube 34. A yarn inlet 61 of the deflection guide member 60 is disposed at the tip in the direction in which air is ejected from the ejection side end portion 34b.

As shown in the perspective view of FIG. 10, the deflection guide member 60 is configured as a curved cylindrical member, and has one end side as a yarn inlet 61 and the other end side as a yarn outlet 62. The air ejected from the ejection side end portion 34 b of the guide tube 34 flows into the deflection guide member 60 from the yarn inlet 61 and guides a curved path by passing through the curved deflection guide member 60. Then, the yarn is discharged from the yarn outlet 62 to the outside of the deflection guide member 60. Accordingly, the upper yarn 20b blown out from the upper yarn drawing portion 48 on the blown air rides on the air flow flowing in the deflection guide member 60 as shown in FIG. Guide to 62.

The upper thread catcher 13 is disposed at the tip of the yarn outlet 62. The upper thread catcher 13 is connected to a negative pressure source (not shown), and is configured to generate a suction flow at a suction flow generation port formed at the tip thereof. A movable lid portion 13 a is disposed at the suction flow generating port of the upper thread catching portion 13. The lid portion 13a is configured to be drivable by the control unit 25, and can be switched between a state where the suction flow generation port is closed and a state where the suction flow generation port is opened.

The controller 25 drives the lid portion 13a to open the suction flow generating port of the upper yarn catching portion 13 before and after the upper yarn drawing portion 48 pulls the upper yarn 20b from the yarn storage device 18. Then, a suction flow is generated in the upper thread catching portion 13. With the above configuration, the upper thread catcher 13 can suck and hold the upper thread 20 b guided to the thread outlet 62 of the deflection guide member 60. The control unit 25 performs control so that the suction flow generating port is closed by the lid portion 13a when it is not necessary to cause the upper thread catching unit 13 to generate a suction flow. Thereby, since it can prevent that air flows into the inside of the upper thread | yarn capture | acquisition part 13, it can prevent that useless energy is consumed. Instead of the configuration for controlling the presence or absence of the suction air flow by opening and closing the lid, a configuration for controlling the air flow by, for example, an electromagnetic valve may be used.

As shown in FIG. 10, the deflection guide member 60 is formed with a slit 63 that communicates the outside and the inside of the deflection guide member 60. The slit 63 is formed so as to connect the yarn inlet 61 and the yarn outlet 62 along the longitudinal direction of the cylindrical deflection guide member 60. Further, the deflection guide member 60 of the present embodiment is formed in a substantially U shape, and the slit 63 is formed along an inner portion of the U shape.

Since the slit 63 is formed in the deflection guide member 60 in this way, when the upper thread catching portion 13 sucks and captures the upper thread 20b guided to the thread outlet 62, as shown in FIG. The upper thread 20b is taken out of the deflection guide member 60.

Then, the upper yarn 20b taken out from the deflection guide member 60 is further sucked by the upper yarn catching section 13, so that the upper yarn 20b can be introduced into the yarn joining device 14 as shown in FIG. It is configured. As described above, the guide tube 34, the air ejection nozzle 49, the deflection guide member 60, the upper thread catching portion 13, and the negative pressure source generating the suction air flow in the upper thread catching portion 13, Since the upper thread 20b is configured to be guided to the upstream side of the yarn joining device 14, the guide tube 34, the air ejection nozzle 49, the deflection guide member 60, the upper thread capturing portion 13, and the negative pressure source are It can be said that the yarn guide part (yarn guide part) is constituted.

As described above, since the upper thread 20b is blown off by the air flow and guided to the upstream side of the yarn joining device 14, for example, the upper thread guide member provided in the conventional winder unit (the upper thread guide pipe 91 in FIG. 19). ) And can guide the upper thread quickly. Accordingly, since the time required for the yarn joining operation can be shortened, the generation efficiency of the package 30 can be improved.

When the operation of guiding the upper yarn 20b to the yarn joining device 14 is completed, the control unit 25 stops the reverse rotation of the yarn accumulating roller 32 and closes the electromagnetic valve 51. Subsequently, the control unit 25 closes the lid 13 a of the upper thread catching unit 13. Then, the control unit 25 operates the yarn joining device 14 to join the upper yarn 20b and the lower yarn 20a.

When the yarn splicing is completed, the control unit 25 starts the normal rotation of the yarn accumulating roller 32 and starts unwinding the yarn from the new yarn supplying bobbin 21. Further, the controller 25 drives the yarn trap 15 to a position approaching the yarn travel path before and after starting the forward rotation of the yarn accumulating roller 32 to restart sucking and removing the fluff and catching the upper yarn. The lid portion 13a of the portion 13 is opened for a short time. Thereby, the broken end of the yarn that has been caught by the upper yarn catching portion 13 (upper yarn cut by the yarn splicing) is sucked and removed. Thereby, the normal winding operation shown in FIG. 1 can be resumed.

Since the upper yarn 20b is taken out from the inside of the deflection guide member 60 as described above, the yarn 20 is placed inside the deflection guide member 60 during normal winding (the state shown in FIG. 1). Not to pass through. Here, if it is assumed that the yarn 20 is configured to pass through the inside of the deflection guide member 60 even during a normal winding operation, the yarn 20 contacts the deflection guide member 60 and is damaged. There is a risk of quality degradation. In this respect, by configuring as described above, the yarn 20 does not come into contact with the deflection guide member 60 during the normal winding operation, so that the yarn quality can be prevented from deteriorating.

Further, as shown in FIG. 1 and the like, the deflection guide member 60 is not connected to other members. More specifically, the deflection guide member 60 is arranged such that a gap is provided between the yarn inlet 61 of the deflection guide member 60 and the upper thread drawing portion 48. Similarly, the deflection guide member 60 is arranged so that there is a gap between the yarn outlet 62 of the deflection guide member 60 and the upper yarn catching portion 13. Thus, a gap is formed between the deflection guide member 60 and another member. In other words, the deflection guide member 60 is disposed at a position deviating from the yarn traveling path. Thereby, the yarn 20 taken out from the deflection guide member 60 can travel without contacting the deflection guide member 60 at all. In this respect as well, it is possible to prevent the yarn 20 from coming into contact with the deflection guide member 60 and receiving damage during normal winding, so that the yarn quality can be prevented from deteriorating.

Note that the traverse bobbin winder disclosed in Patent Document 1 also includes a suction nozzle in which a slit is formed. However, since the configuration of Patent Document 1 is a configuration in which the yarn is sucked by negative pressure and guided to the yarn joining device, air flows into the suction nozzle through the slit, and the suction force at the tip of the suction nozzle is reduced. There was a possibility. In this respect, since the automatic winder of the present embodiment is configured to generate a suction flow directly in the vicinity of the yarn accumulating device 18 by the blown air, even if the slit 63 is formed in the deflection guide member 60, the suction force is reduced. The problem does not occur. Furthermore, in this embodiment, since the deflection guide member 60 is configured as a cylindrical member, the air ejected from the upper thread drawing portion 48 can be well guided from the yarn inlet 61 to the yarn outlet 62.

Further, since the yarn 20 is blown off and guided as described above, there is no need for a member that is largely driven like the

yarn guide pipes

91 and 92 in FIG. Therefore, the configuration of the automatic winder can be simplified, and the degree of freedom in layout of each configuration is increased. Further, in the present embodiment, the path through which the upper thread 20b is guided by the deflection guide member 60 is curved, so that the upper thread catching section 13 is disposed at the tip of the direction in which the thread is blown from the upper thread drawing section 48. Even if not, the upper thread 20 b can be guided to the upper thread catching section 13. Thus, by devising the shape of the deflection guide member 60, the positions of the upper thread drawing portion 48 and the upper thread catching portion 13 can be freely laid out.

Subsequently, an operation when a yarn defect is detected by the clearer 17 will be described.

When a yarn defect is detected by the clearer 17 during normal winding as shown in FIG. 1, the control unit 25 operates the cutter 16 to cut the yarn 20. At this time, the yarn end upstream of the cutter 16 is sucked and captured by the yarn trap 15 disposed immediately upstream of the cutter 16. On the other hand, the yarn end downstream of the cutter 16 is wound around a yarn accumulating roller 32 that rotates forward. As a result, the yarn portion including the yarn defect is wound on the proximal end side of the yarn accumulating roller 32.

At this time, the lower thread 20a and the upper thread 20b are in the same state as in FIG. However, when the yarn 20 is cut by the cutter 16, the cut yarn end is sucked and captured by the yarn trap 15 as it is, so that the operation of blowing the lower yarn 20 a upward by the lower yarn blowing section 11 is not necessary. This is different from the replacement operation of the yarn feeding bobbin 21.

Subsequently, the yarn trap 15 is driven in a direction away from the yarn traveling path, and the lower yarn 20a sucked and captured by the yarn trap 15 is introduced into the yarn joining device 14 (the same state as FIG. 9). Before and after this, while rotating the yarn accumulating roller 32 in the reverse direction, the electromagnetic valve 51 is opened, and the lid portion 13a is opened. Thereby, the upper thread 20b is introduced into the yarn joining device 14 (the same state as FIG. 13). In this state, by continuing the reverse rotation of the yarn accumulating roller 32 for a predetermined time, the yarn defect portion wound on the yarn accumulating roller 32 is drawn out and sucked by the upper yarn catching section 13. Thereby, the yarn defect portion detected by the clearer 17 can be removed. Subsequently, the control unit 25 operates the yarn joining device 14 to perform yarn joining.

As described above, in the yarn splicing operation at the time of detecting the yarn defect, the upper yarn 20b is guided by being blown off by the blown air, so that the upper yarn guide member provided in the conventional winder unit (FIG. 19). Compared to the upper thread guide pipe 91), the upper thread 20b can be guided quickly with a simple configuration. Further, in the yarn joining operation when the yarn defect is detected, the lower yarn 20a can be guided to the yarn joining device 14 only by driving the yarn trap 15 while being sucked and captured by the yarn trap 15. Thereby, the lower thread 20a can be guided easily and quickly at the time of detecting a yarn defect. As described above, even when the yarn defect is detected, the time required for the yarn joining operation can be shortened, so that the generation efficiency of the package 30 can be improved.

As described above, the automatic winder of the present embodiment includes the bobbin support portion 7, the yarn storage device 18, the winding portion 8, the yarn joining device 14, and the upper yarn guide portion. The bobbin support part 7 supports the yarn feeding bobbin 21. The yarn storage device 18 stores the yarn 20 unwound from the yarn supply bobbin 21. The winding unit 8 winds the yarn 20 stored on the yarn storage device 18 to form the package 30. The yarn joining device 14 joins the yarn on the yarn feeding bobbin 21 side and the yarn on the yarn storage device 18 side when the yarn 20 is divided between the bobbin support 7 and the yarn storage device 18. The upper yarn guide part draws the yarn from the yarn storage device 18 and guides it to the yarn joining device 14. The upper thread guide section includes a guide tube 34, an air ejection nozzle 49, an upper thread capturing section 13, and a negative pressure source. The guide tube 34 pulls out the yarn 20 stored in the yarn storage device 18 and blows it off to the bobbin support portion 7 side. The air ejection nozzle 49 generates an air flow for pulling out and blowing the yarn on the guide tube 34. The upper thread catching portion 13 is disposed between the yarn joining device 14 and the bobbin support portion 7 and catches the yarn 20 blown off by the guide tube 34. The negative pressure source causes the upper yarn catching section 13 to generate an air flow for catching the yarn and introducing it into the yarn joining device 14.

Thus, by adopting a configuration in which the upper yarn 20b is blown off by the blown air and guided to the yarn joining device 14, the configuration for guiding the upper yarn 20b is simplified, and the degree of freedom in layout of each configuration is improved. To do. Further, since the guide to the yarn joining device 14 is completed simply by blowing off the upper thread 20b, the time required for the guiding operation of the upper thread 20b can be shortened and the production efficiency of the package 30 can be improved. Further, when the upper yarn 20b is pulled out from the yarn accumulating device 18 as described above, the suction flow only has to be applied to a position where the position of the yarn end is known to exist, so it is possible to reliably use with less energy. The yarn end can be sucked.

Further, the automatic winder of the present embodiment is configured as follows. That is, the guide tube 34 guides the yarn 20 on the yarn feeding bobbin 21 side to the yarn accumulating device 18 when winding the yarn. The air ejection nozzle 49 injects compressed air into the guide cylinder 34.

With this configuration, since the yarn 20 is stored in the yarn storage device 18 via the guide tube 34, when the yarn is pulled out from the yarn storage device 18, the yarn 20 is pulled out via the guide tube 34 to ensure that In addition, the yarn can be pulled out from the yarn storage device smoothly. Therefore, by configuring the guide tube 34 so as to also serve as the yarn pull-out jetting portion as described above, the yarn 20 wound around the yarn accumulating device 18 can be blown off reliably and smoothly.

Further, the automatic winder of the present embodiment includes a deflection guide member 60 that guides the upper thread 20b blown off by the guide cylinder 34 to the upper thread catching section 13.

Thus, by guiding the upper thread 20b blown off by the guide cylinder 34 to the upper thread capturing section 13 by the deflection guide member 60, the guide cylinder 34 and the upper thread capturing section 13 can be freely arranged. , Layout flexibility can be improved.

Further, in the automatic winder of the present embodiment, the deflection guide member 60 is a cylindrical member, and a slit 63 is formed along the longitudinal direction of the cylinder.

Thus, by making the deflection guide member 60 cylindrical, the upper thread 20b can be reliably guided to the upper thread catcher 13 so as to pass through the inside of the cylinder. Further, by providing the cylindrical deflection guide member 60 with the slit 63, the upper thread 20 b that has been guided to the upper thread catching section 13 can be taken out from the slit 63. As a result, the yarn 20 can run outside the deflection guide member 60 during normal winding, so that it is possible to prevent the yarn 20 from coming into contact with the deflection guide member 60 and reducing the quality.

Further, in the automatic winder of the present embodiment, the deflection guide member 60 is provided at a position deviated from the traveling path along which the yarn 20 travels during winding of the yarn.

Thereby, it is possible to prevent the yarn 20 from coming into contact with the deflection guide member 60 during normal winding, and to prevent the quality of the yarn 20 from deteriorating.

Further, the automatic winder of the present embodiment includes a lower thread guide portion that guides the lower thread 20a on the yarn feeding bobbin 21 side to the yarn joining device 14. The lower thread guide section includes a lower thread blowing section 11, a yarn trap 15, and a negative pressure source. The lower thread blowing section 11 is disposed between the bobbin support section 7 and the yarn joining device 14 and blows the lower thread 20a on the yarn feeding bobbin 21 side to the vicinity of the yarn joining apparatus 14. The yarn trap 15 is disposed between the yarn joining device 14 and the yarn accumulating device 18, and captures the lower yarn 20 a blown off by the lower yarn blowing unit 11. The negative pressure source generates an air flow in the yarn trap 15 for capturing the lower thread 20a.

Thereby, the yarn on the yarn feeding bobbin 21 side can be blown off and guided to the yarn joining device 14. Accordingly, the degree of freedom in layout of each component of the yarn winding device can be further improved, and the time required for piecing can be further reduced.

Further, the automatic winder of the present embodiment includes a yarn trap driving unit 47 capable of driving the yarn trap 15 in a direction approaching or separating from the yarn traveling path.

Thereby, the yarn trap 15 can be moved to a position where the yarn 20 can be easily captured (position approaching the yarn traveling path).

Also, the automatic winder of this embodiment includes a control unit 25 that controls the operation of the yarn trap driving unit 47. The controller 25 drives the yarn trap 15 close to the yarn traveling path during normal winding, and drives the yarn trap 15 in a state of capturing the yarn 20 away from the yarn traveling path during yarn joining. Thus, the captured yarn 20 is introduced into the yarn joining device 14.

As described above, by keeping the yarn trap 15 close to the yarn travel path during normal winding, the fluff adhering to the yarn 20 can be removed by suction. On the other hand, when the yarn trap 15 catches the yarn, the yarn 20 can be introduced into the yarn joining device by driving the yarn trap 15 away from the yarn travel path.

Further, the automatic winder of this embodiment includes a control unit 25 that controls the yarn joining device 14, the upper yarn drawing unit 48, and the lower yarn blowing unit 11. When a new yarn supplying bobbin 21 is supplied to the bobbin support unit 7, the control unit 25 blows off the lower yarn 20 a on the new yarn supplying bobbin 21 side by the lower yarn blowing unit 11 and captures the blown yarn in the yarn trap 15. The yarn trap 15 is driven in a direction away from the yarn traveling path. Also, before or after this, or simultaneously with this, the control unit 25 draws and blows off the upper yarn 20b on the yarn storage device 18 by the upper yarn drawing unit 48, and causes the upper yarn catching unit 13 to catch the blown yarn. . Thereafter, the control unit 25 operates the yarn joining device 14 to perform yarn joining.

Thereby, when the yarn feeding bobbin 21 is replaced, the lower yarn 20a on the yarn feeding bobbin 21 and the upper yarn 20b on the yarn storage device 18 side can be guided to the yarn joining device 14 to perform yarn joining. .

Further, the automatic winder of the present embodiment includes a clearer 17 and a cutter 16 that cuts the yarn between the yarn supplying bobbin 21 and the yarn accumulating device 18 at a position downstream of the yarn trap 15. When a yarn defect is detected by the clearer, the control unit 25 operates the cutter to cut the yarn, causes the lower yarn 20a on the yarn feeding bobbin 21 side to be captured by the yarn trap 15, and the yarn trap 15 is Drive away from the yarn travel path. Further, at the same time, or simultaneously with this, the control unit 25 pulls out and blows off the upper yarn 20b on the yarn storage device 18 side by the upper yarn drawing unit 48, and causes the upper yarn catching unit 13 to catch the blown yarn. . Thereafter, the control unit 25 operates the yarn joining device 14 to perform yarn joining.

Next, a modification of the first embodiment will be described. In the following description of the modified examples, the same or similar configurations as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted. As shown in FIG. 14, this modification has a configuration in which the lower thread blowing section 11 is omitted and a lower thread guide pipe 92 is provided instead. In this modification, the lower thread 20a is guided to the yarn joining device 14 by the lower thread guide pipe 92. The configuration of the lower thread guide pipe 92 is the same as that of the lower thread guide pipe 92 provided in the conventional automatic winder shown in FIG.

As in this modification, the lower thread 20a may be guided to the yarn joining device 14 by a conventional thread guide member (yarn guide pipe 92). Even in this configuration, the upper yarn 20b is guided to the yarn joining device 14 by the blown air, and therefore both the upper yarn 20b and the lower yarn 20a are guided by the

yarn guide pipes

91 and 92. Compared to the conventional configuration (configuration of FIG. 19), the configuration is simple and the time required for yarn joining can be shortened.

Next, a second embodiment of the present invention will be described. In the following description of the modified examples, the same or similar configurations as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted.

As shown in FIG. 15, the winder unit 100 included in the automatic winder according to this embodiment includes a yarn storage device of a type different from that of the first embodiment. Hereinafter, the yarn accumulating device 64 will be described with reference to FIG.

16, the yarn storage device 64 includes a rotary shaft casing 70, a yarn storage unit 71, and a yarn guide unit 72. Further, the rotary shaft casing 70 includes a cylindrical tube portion 78 that is open at the top, and a flange portion 79 that is formed at an open end of the tube portion 78. Further, an upper thread drawing portion 48 is disposed immediately upstream of the yarn accumulating device 64.

The yarn storage portion 71 is disposed above the collar portion 79. The yarn storage portion 71 includes a support plate 81 formed in a disc shape, a plurality of rod members 82 protruding upward from the support plate 81, and a disc to which tip portions of the plurality of rod members 82 are connected. And a mounting plate 83 having a shape. Further, the yarn storage portion 71 is disposed so as to form a gap between the support plate 81 and the collar portion 79, and is configured so that a winding cylinder 75 described later can rotate inside the gap. ing.

The plurality of rod members 82 are arranged at equal intervals on a circumference orthogonal to the vertical direction, and the yarn storage portion 71 is configured to form a substantially cylindrical shape by the rod members 82. The yarn 20 is stored in the yarn storage portion 71 by winding the yarn 20 around the outer peripheral portion of the substantially cylindrical yarn storage portion 71 composed of the plurality of rod members 82.

The yarn guide portion 72 is disposed inside the rotary shaft casing 70. In the rotary shaft casing 70, an introduction hole 80 is formed in the lower part of the cylindrical part 78 (the end opposite to the yarn storage part 71). The guide tube 34 of the upper thread drawing portion 48 is connected to the introduction hole 80. The yarn 20 drawn out from the yarn supplying bobbin 21 is guided to the introduction hole 80 by the guide cylinder 34, passes through the introduction hole 80, and is guided to the yarn guide portion 72.

A rotating shaft 73 that is attached to the rotating shaft casing 70 and the yarn storage portion 71 so as to be rotatable relative to the rotating shaft casing 70 is disposed inside the cylindrical portion 78. A servo motor (yarn storage drive unit) 55 is incorporated between the rotary shaft 73 and the cylindrical portion 78, and the rotary shaft 73 can be rotated forward and backward. A shaft hole-shaped yarn passage 74 is formed at the center of the rotating shaft 73.

A winding cylinder (winding means) 75 formed in a cylindrical shape is fixed to one end (the end opposite to the introduction hole 80) of the rotating shaft 73. The winding cylinder 75 extends in the radial direction so as to pass through the gap between the rotating shaft casing 70 (the flange 79) and the support plate 81 while being slightly inclined upward, and a part of the tip portion thereof is rotated. It is configured to protrude slightly from the shaft casing 70. The winding cylinder 75 is configured to rotate integrally with the rotating shaft 73. Further, the inside of the winding cylinder 75 is connected to the yarn passage 74.

In the above configuration, the yarn 20 introduced into the rotary shaft casing 70 from the introduction hole 80 of the yarn guide portion 72 passes through the inside of the yarn passage 74 and the winding cylinder 75 and is discharged from the tip of the winding cylinder 75. Thus, the yarn is guided to the side surface portion of the yarn storage portion 71. Accordingly, when the servo motor 55 is driven in the forward direction, the winding cylinder 75 rotates together with the rotary shaft 73, whereby the yarn 20 is wound around the side surface portion.

Further, each of the rod members 82 arranged in the yarn accumulating portion 71 is arranged so as to incline toward the inner side of the yarn accumulating portion 71 as it approaches the end portion on the mounting plate 83 side from the end portion on the support plate 81 side. Has been. By the inclination of the rod member 82, the yarn wound around the yarn accumulating portion 71 moves so as to slide upward. Accordingly, when the yarn 20 is continuously wound by the winding cylinder 75 described later, the yarn wound around the inclined portion moves upward, so that the side portion constituted by the rod member 82 has The yarn 20 is stored in a spirally aligned state.

The upper thread drawing portion 48 includes a guide tube 34 and an air ejection nozzle 49 as in the first embodiment. As shown in FIG. 16, the air ejection nozzle 49 is connected to an electromagnetic valve 51 controlled by the control unit 25, and this electromagnetic valve 51 is connected to a compressed air source 46. The air ejection port of the air ejection nozzle 49 is formed so as to eject air toward the upstream side in the yarn traveling direction.

In this second embodiment, when the yarn is pulled out from the yarn storage device 64, the control unit 25 stops the servo motor 55 and opens the electromagnetic valve 51 to generate an air flow in the guide tube 34. Thereby, the yarn can be pulled out from the yarn storage device 64.

Further, as shown in FIG. 16, the guide tube 34 is appropriately curved, and the yarn inlet 61 of the deflection guide member 60 is disposed at the tip of the curved guide tube 34. Thereby, the yarn pulled out from the yarn storage device 64 can be introduced into the deflection guide member 60. With the above configuration, also in the second embodiment, the upper thread on the yarn storage device 64 side can be guided to the yarn joining device 14.

Next, a modification of the second embodiment will be described. In this modification, the deflection guide member is omitted as shown in FIG. 17, and the guide tube 34 is formed in a cylindrical shape without being bent as shown in FIG. Further, the guide tube 34 is disposed so that the tip of the guide tube 34 faces the yarn supplying bobbin 21. Thus, the yarn stored in the yarn storage device 64 is configured to be drawn straight upstream without being bent.

That is, in the first and second embodiments, the yarn traveling path of the yarn supplying bobbin 21 is guided to the yarn accumulating device by bending the yarn traveling path by the guide tube 34. When the traveling path of the yarn is bent in this way, the traveling yarn may come into contact with the guide tube 34 and be damaged. In this regard, by preventing the traveling path of the yarn from being bent by the guide tube 34 as in the present modification, damage to the yarn can be minimized.

In particular, in the yarn storage device 64 of the second embodiment, the yarn introduction hole 80 is formed in the upstream end portion (lower end portion) of the yarn storage device 64, and the yarn is pulled out from the introduction hole 80. Since it is a structure, it is easy to take the structure of pulling out the yarn straight toward the downstream side. In this respect, since the yarn storage device 18 of the first embodiment is configured to pull out the yarn from the circumferential surface of the yarn storage roller 32 disposed obliquely, it is difficult to employ a configuration in which the yarn is pulled out toward the downstream side. Therefore, when the yarn is drawn straight downstream as described above, it is preferable to employ the yarn storage device 64 of the second embodiment.

In addition, since the deflection guide member is omitted in this modification, a configuration for guiding the yarn drawn from the yarn storage device 64 to the yarn joining device 14 is separately required. Therefore, in the present embodiment, an upstream yarn trap 115 is provided in place of the upper thread catching portion 13 provided in the winder units of the first and second embodiments. The upstream yarn trap 115 is connected to a negative pressure source in the same manner as the downstream yarn trap 15, and generates a suction flow at the tip thereof. Further, the upstream yarn trap 115 is configured to be driven by a yarn trap driving unit 147 in a direction approaching / separating from the yarn traveling path.

The controller moves the upstream yarn trap 115 to a position close to the yarn travel path during normal winding. As a result, as with the downstream yarn trap 15, the upstream yarn trap 115 can remove the fluff.

When pulling out the yarn from the yarn storage device 64, the control unit 25 stops the servo motor 55 and opens the electromagnetic valve 51 to generate an air flow in the guide cylinder 34. Thereby, it can blow off straight toward the upstream from the yarn storage device 64. The yarn blown to the upstream side is sucked by the suction flow generated by the upstream yarn trap and is captured by the upstream yarn trap. In this state, the control unit retracts the upstream yarn trap. With the above configuration, the yarn pulled out from the yarn storage device 64 can be guided to the yarn joining device 14.

Next, another modification of the second embodiment will be described. That is, the yarn storage device 64 of the second embodiment is provided with the rod member 82 tilted in order to wind the yarn in the yarn storage portion 71 in an aligned state. However, with this configuration, there is a problem that the yarn wound around the rod member 82 is loosened as it moves upward. Therefore, instead of the configuration in which the rod member is inclined, a configuration in which a member that actively feeds the yarn upwards may be provided. For example, a configuration in which the yarn in the yarn accumulating portion is positively sent upward by a roller-shaped member can be employed.

Although the preferred embodiment of the present invention and its modification have been described above, the above configuration can be modified as follows, for example.

In the first embodiment, when the yarn is pulled out from the yarn accumulating device 18, the yarn accumulating roller 32 is reversely rotated by the roller drive motor 33, but the upper yarn pulling portion 48 has a force to pull out the upper yarn 20 b. If it is strong enough, the roller drive motor 33 may be neutral.

In the description of the above-described embodiment, the lower thread 20a is guided first and then the upper thread 20b is guided after that because of the explanation described in the drawings. However, the present invention is not limited to this, and the upper thread 20b is guided first. You may go to In the case of the conventional configuration shown in FIG. 19, if the lower thread 20a and the upper thread 20b are guided at the same time, the two

thread guide pipes

91 and 92 interfere with each other. The upper thread and lower thread could not be guided simultaneously. In this regard, if configured as in the above-described embodiment or its modification, there is no problem that the yarn guide pipes interfere with each other because there is at most one yarn guide pipe. Therefore, in the automatic winder shown in the above embodiment or its modification, the lower thread 20a and the upper thread 20b can be guided at the same time.

Although the yarn trap 15 can be driven in a direction approaching / separating from the yarn traveling path, this configuration is omitted, and the position separated from the yarn traveling path (the lower thread 20a can be introduced into the yarn joining device 14). (Position) may be used. However, with this configuration, the yarn trap 15 cannot be brought close to the yarn travel path during normal winding, so that it is difficult to force a suction flow to the yarn 20 and adhere to the yarn 20. It may not be possible to remove the fluff that has been removed. Further, in such a configuration, there is a possibility that the yarn end of the lower yarn cannot be captured when the yarn 20 is cut by detecting the yarn defect. Therefore, it is preferable that the yarn trap 15 can be driven in a direction approaching / separating from the yarn traveling path as in the above embodiment.

The shape of the deflection guide member 60 is not limited to that of the above-described embodiment, and any shape can be used as long as it can properly guide the air blown from the upper thread drawing portion 48 to the upper thread catching portion 13. . For example, if it is possible to dispose the upper thread catcher 13 in the direction in which air is ejected from the upper thread draw-out part 48, the upper thread 20b can be moved to the upper thread catcher 13 without the deflection guide member 60. In this case, the deflection guide member 60 can be omitted.

The control unit 25 is not limited to the configuration provided for each winder unit 2 and may be configured to control a plurality of winder units by one control unit. In the above description, a single control unit 25 is configured to control a plurality of members collectively. However, the present invention is not limited to this. For example, a control unit is provided for each member to be controlled. Also good.

The control unit 25 is configured by hardware and software, but part or all of the functions may be configured by dedicated hardware.

The winder unit 2 of the above embodiment is configured to supply the yarn feeding bobbin 21 by the magazine type bobbin supplying device 26, but is not limited to this configuration. For example, it is possible to change to a configuration in which the yarn feeding bobbin 21 is supplied to the winder unit 2 by conveying a tray on which the yarn feeding bobbin 21 is set along an appropriate path.

In the above embodiment, the winding unit 8 is configured to traverse the yarn 20 by the traverse drum 24, but may be configured to traverse the yarn 20 by an arm type traverse mechanism, for example.

Further, the configuration of the present invention is not limited to the automatic winder but can be applied to other types of yarn winding devices provided with a yarn joining device.

2 Winder unit 7 Bobbin support part 8 Winding part 11 Lower thread blowing part 12 Upper thread catching part (yarn catching part)
14 Yarn splicing device 15 Yarn trap (second yarn catcher)
17 Clearer (Thread defect detection device)
DESCRIPTION OF SYMBOLS 18 Yarn storage apparatus 25 Control part 34 Guide cylinder 49 Air ejection nozzle 48 Upper thread drawing part (yarn drawing ejection part)
60 Deflection guide member

Claims

A bobbin support for supporting the yarn feeding bobbin;
A yarn storage device for storing the yarn unwound from the yarn supplying bobbin;
A winding unit for winding a yarn stored on the yarn storage device to form a package;
A yarn joining device for joining the yarn on the yarn feeding bobbin side and the yarn on the yarn storage device side when the yarn is divided between the bobbin support portion and the yarn storage device;
A yarn guide portion for guiding the yarn stored in the yarn storage device to the yarn joining device;
With
The yarn guide portion is
A yarn pull-out jetting unit that pulls out the yarn stored in the yarn storage device and blows it off to the bobbin support unit;
An air ejection portion for generating an air flow for drawing and blowing the yarn to the yarn withdrawal ejection portion;
A yarn catching portion that is disposed between the yarn joining device and the bobbin support portion, and catches the yarn blown off by the yarn draw-out ejection portion;
A yarn catching air flow generating unit for generating an air flow for capturing and introducing the yarn into the yarn joining device in the yarn catching unit;
A yarn winding device comprising:
The yarn winding device according to claim 1,
The yarn drawout portion is a guide tube that guides the yarn on the yarn feeding bobbin side to the yarn accumulating device when winding the yarn,
The yarn winding device, wherein the air ejection part is an air ejection nozzle that ejects compressed air into the guide tube.
The yarn winding device according to claim 1,
A yarn winding device, comprising: a deflection guide member that guides the yarn blown off by the yarn drawing jetting portion to the yarn catching portion.
The yarn winding device according to claim 3,
The yarn winding device, wherein the deflection guide member is a tubular member, and a slit is formed along a longitudinal direction of the tube.
The yarn winding device according to claim 4,
The yarn winding device, wherein the deflection guide member is provided at a position deviated from a traveling path along which the yarn travels during yarn winding.
A yarn winding device according to any one of claims 1 to 5,
A second yarn guide portion for guiding the yarn of the yarn feeding bobbin to the yarn joining device;
The second thread guide portion is
A lower yarn blow-up portion that is disposed between the bobbin support portion and the yarn joining device, and blows the yarn of the yarn feeding bobbin toward the yarn joining device;
A second yarn catching unit that is disposed between the yarn joining device and the yarn accumulating device and catches the yarn blown off by the lower yarn blowing unit;
A second yarn catching airflow generating unit for generating an airflow for catching the yarn in the second yarn catching unit;
A yarn winding device comprising:
The yarn winding device according to claim 6,
A yarn winding device comprising: a driving unit capable of driving the second yarn catching unit in a direction approaching or separating from the yarn traveling path.
The yarn winding device according to claim 7,
A control unit for controlling the operation of the drive unit;
The control unit
At the time of normal winding, the second yarn catching portion is brought close to the yarn traveling path,
At the time of yarn joining, the yarn winding device is characterized in that the captured yarn is introduced into the yarn joining device by driving the second yarn catching portion in a state where the yarn is caught away from the yarn traveling path.
The yarn winding device according to claim 8,
A control unit for controlling the yarn splicing device, the yarn draw-out jetting unit, and the lower yarn blowing-up unit;
The controller is
When a new yarn feeding bobbin is supplied to the bobbin support,
Blowing off the yarn of the new yarn feeding bobbin by the lower yarn blow-up unit, causing the second yarn catching unit to catch the blown yarn, and driving the second yarn catching unit away from the yarn travel path,
Before and after this, or simultaneously with this, the yarn on the yarn storage device is pulled out and blown off by the yarn drawing-out jetting portion, and the yarn catching portion is captured by the yarn catching portion,
Then, the yarn winding device is characterized in that the yarn joining device is operated to perform the yarn joining.
The yarn winding device according to claim 8,
A yarn defect detection device;
A cutter for cutting a yarn between the yarn feeding bobbin and the yarn accumulating device at a position downstream of the second yarn catching unit;
With
The controller is
When a yarn defect is detected by the yarn defect detection device,
Actuating the cutter to cut the yarn, causing the yarn on the yarn feeding bobbin side to be caught by the second yarn catching portion, driving the second yarn catching portion away from the yarn traveling path,
Before and after this, or simultaneously with this, the yarn on the yarn storage device is pulled out and blown off by the yarn draw-out jetting unit, and the yarn catching unit is made to catch the blown yarn,
Then, the yarn winding device is characterized in that the yarn joining device is operated to perform the yarn joining.