EP0110359B1 - Lacing up of thread treating nozzles - Google Patents
Lacing up of thread treating nozzles Download PDFInfo
- Publication number
- EP0110359B1 EP0110359B1 EP83111863A EP83111863A EP0110359B1 EP 0110359 B1 EP0110359 B1 EP 0110359B1 EP 83111863 A EP83111863 A EP 83111863A EP 83111863 A EP83111863 A EP 83111863A EP 0110359 B1 EP0110359 B1 EP 0110359B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- thread
- parts
- nozzles
- mounting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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Classifications
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
- D02G1/161—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam yarn crimping air jets
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
- D01H15/007—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing for two-for-one twisting machines
Definitions
- the present invention relates to a thread treating apparatus comprising a treating nozzle through which the thread moves along a substantially predetermined path.
- the thread is usually subjected to a treating fluid, generally a gas or vapor, while passing through the nozzle.
- a treating fluid generally a gas or vapor
- the invention is intended particularly, but not exclusively, for use in thread texturizing apparatus, but it may also have application where the treating nozzle is used to produce entanglements in the thread passing through it.
- the term "thread” when used herein refers to any continuous textile element, particularly but not exclusively synthetic filamentary material, whether mono-filamentary or multi-filamentary.
- Thread texturizing by means of a texturizing nozzle is well known - see for example US-A-3 714 686 and 4 100 659 as examples only. These processes may operate on thread drawn from a bobbin, or upon thread received directly from a spinneret producing synthetic filament. In the latter case, there is a well known problem concerned with lacing of the continuously moving thread into the texturizing nozzle.
- the continuously moving thread is drawn past the end of a tubular nozzle, the thread is severed in the region of the nozzle entrance, and the free end so formed is blown or sucked into the nozzle - see for example US-A-4 051 581 and DE-A--2 817 487. While these techniques can be made to work satisfactorily, they demand a degree of skill on the part of the machine operator and they also necessitate the insertion of special lace up devices in a relatively small free space available around the texturizing nozzle.
- US-A-3237269 also describes an openable and closable nozzle in which one of the nozzle parts has a flexible mounting in the form of a thin web. This web permits the flexibility mounted part to be forced away from the other part against the bias provided by the web.
- the nozzle parts have flat mating surfaces. This US specification is concerned primarily with opening of the nozzle and hardly mentions the closing operation. There is no consideration of the question of achieving face-to-face sealing contact of the mating surfaces on the nozzle parts.
- DE-B-204970 refers to the possibility that the mutually contacting parts of an openable and closable nozzle can be made of an elastically deformable material. That is no indication as to how this feature can be exploited to obtain face-to-face sealing contact of the contact surfaces.
- the flexible mounting comprises a plurality of mounting elements movable relative to each other to enable relative adjustment of the parts into face-to-face sealing contact despite initial localised contact between the parts.
- Figures 1 to 3 and 5 illustrate a texturizing "station” in which two threads 10, 12 respectively ( Figure 5) are texturized simultaneously.
- Each thread comprises a plurality of synthetic monofilaments which are passed directty to the texturizing station from a spinneret (not shown). Since the process, and the apparatus, is the same for each of the threads 10 and 12, the following description will refer only to the thread 10 but will be understood to apply equally to thread 12.
- the station comprises pre-heating rolls 14, 16 around which the thread is passed a predetermined number of times to produce a desired temperature as the thread leaves the downstream roll 16.
- the thread is then passed to a texturizing nozzle 18 which is located as close as possible to the roller 16. From the nozzle 18, the thread passes to a cooling drum 20. After passing around a predetermined portion of circumference of the drum, as indicated by the angle a in Figure 1, the thread passes to a suitable wind-up (not shown).
- the nozzle 18 is formed in two parts 22, 24, in a manner known per se.
- the parts define between them a thread passage 26 extending through the nozzle and openable and closable by relative movement of the nozzle parts. Since the exact form of the treatment passage 26 is not a feature of the present invention, it is illustrated in the drawings as a simple straight-through passage. It will be understood however that the exact form of this passage may be adapted to suit the texturizing process which is to be used in the nozzle. At least one part is also provided with an infeed port (not shown) for treatment fluid required in the process.
- Nozzle parts 22, 24 are carried on a carrier head in the form of a plate 28.
- Nozzle part 22 is rigidly fixed to the plate 28 by carrier arms 30 extending forwardly from the plate.
- Nozzle part 24 is also mounted on carrier arms 32, but these arms are movably mounted on the plate 28 to move nozzle part 24 between the closed position in which it engages nozzle part 22 (Figure 1) and an open position in which it is spaced from nozzle part 22 to leave a gap for taking in of a filament into the passage 26 ( Figure 2).
- a suitable device for moving nozzle part 24 will be described below with reference to Figures 6 and 7.
- Plate 28 is secured to a carrier bar 34 ( Figure 5) extending rearwardly from the plate into the machine frame, part of which is indicated at 36 in Figure 5.
- Bar 34 is suspended from a guide track in the form of a rod 38 fixedly mounted in the machine frame by means not shown. The suspension is by way of slider element 40 which can slide on rod 38 with low friction.
- Also secured to the bar 34 is a connector rod 42 connecting the bar with the piston (not shown) of a pneumatically operated, double acting piston and cylinder unit. The cylinder of this unit is shown at 44 and is fixedly mounted in the machine frame by means not shown. Reciprocation of the piston as indicated by the double headed arrow in Figure 5 carries the plate 28, and the nozzle pair carried thereby, between the retracted position shown in full lines in Figure 5 and the extended position shown in dotted lines in the same Figure.
- a controllably movable thread guide element 46 is provided to engage the threads downstream of the nozzles pair considered along the thread paths.
- Element 46 is plate-like, with a W-shaped edge providing two V-shaped notches 58, 60.
- the element is mounted on a lever 50 which is carried by a pivot mounting 54 in the body of the machine. As seen in Figures 1 and 5, element 46 is in its inoperative position in which lever 50 projects forwardly and to the right from mounting 54 at an angle of about 45° to the plane of Figure 1. As best seen in Figure 5, element 46 is held clear of the drum 20 so that an operator can easily lay threads in the open notches 58, 60.
- the pivot axis of mounting 54 is substantially parallel to the thread paths between roller 16 and drum 20, and lever 50 is pivotable on this mounting to swing element 46 through a position in which the apices of the V-notches intersect, or at least pass very close, to respective thread paths.
- the pivot axis of mounting 54 is preferably aligned with the thread paths as viewed from the front of the machine, but in order to avoid cluttering the drawing, it has been shown slightly offset in Figure 1. The principle is the same for both positions of the pivot axis.
- the guide system comprises an upstream guide element 48, having a W-guide edge similar to that on element 46.
- Element 48 is mounted on plate 28 for movement therewith, being carried by a lever 52 ( Figure 5).
- Lever 52 is mounted on plate 28 by pivot mounting 56 so that, when plate 28 is in its forward position, element 46 can be swung through a position in which the apices of its notches intersect or pass very close to the desired thread paths.
- Pneumatically operated piston and cylinder units (not shown) are provided to rotate levers 50, 52 around their respective pivot mountings in accordance with a predetermined control sequence which will appear from the following description.
- element 48 also has a fully withdrawn position, shown in Figure 1, in which it cannot contact a thread passing along the normal texturing thread path between roller 16 and drum 20.
- the upstream guide element 48 does not contact the thread while the latter is in its preheated state immediately prior to entering the nozzle 18; the thread is extremely sensitive in this state and contact with the guide element during normal texturing operation would result in uncontrollable variations in the textured thread quality.
- the downstream element 46 cannot contact the fully textured thread leaving the nozzle 18; such contact would interfere severely with the texturing operation, and would greatly jeopardize if not nullify it.
- a lacing up operation using this system takes place in the following general sequence (thread 10 only will be referred to, but the same applies to thread 12).
- thread 10 only will be referred to, but the same applies to thread 12.
- plate 28, and element 48 carried thereby lie in the retracted position and the texturing nozzle is closed.
- the nozzle is heated by any suitable means. Due to this pre-heating, the nozzle will be ready for immediate texturing operation when it reaches the extended position.
- the operator takes up the thread to be textured in a suitable portable suction apparatus (not shown) and wraps the continuously moving thread a predetermined number of times around the rollers 14 and 16. He then lays the thread in guide element 46 ( Figure 1) which is in its retracted position, so that drum 20 does not interfere.
- the central triangular projection on the guide edge of element 20 separates the threads automatically. He can then press an initiating button on a control panel (not shown) on the machine so that subsequent stages of the lacing operation are effected automatically.
- guide element 46 is moved to the position shown in Figure 2 in which the thread is held in the plane of the desired thread path between the roller 16 and the cooling drum 20.
- the nozzle 18 is now opened and plate 28 is moved to the right as viewed in Figure 5 so that the thread is taken in between the nozzle parts 22, 24.
- the nozzle is then closed during which the guides lay the thread in thread passage 26 as further described below.
- Supply of texturing fluid to the nozzle is started automatically as soon as the nozzle is closed so that texturing begins immediately. Supply of such fluid is cut off automatically whenever the nozzle is open.
- levers 50 and 52 are pivoted simultaneously to carry the lengths of thread already located within the nozzles into contact with the nozzle parts 22 and in particular to lay the threads within the passage portions 26 defined in those nozzle parts.
- This condition is shown in Figure 3 and it will be seen that each thread is deflected slightly beyond its texturing path as indicated at a and b in that Figure. The threads slide on the walls of the V notches to lie at the apices thereof and are thus accurately located relative to the thread paths.
- the spacing between nozzle parts 22 and 24 shown in Figure 3 is less than that shown in Figure 2, indicating that each nozzle is being closed simultaneously with this laying on movement of thread guides 46 and 48.
- elements 46 and 48 are pivoted back to their fully withdrawn positions, so that texturing can proceed without interference from these guide elements. The operator now simply lays the threads on the drum 20 and texturizing can proceed normally.
- Figure 4 illustrates a modification in which the guides lay the threads upon movable nozzle parts 24.
- Guide element 46a is similar to element 46 and is similarly mounted, but is movable only between the fully withdrawn and intermediate positions shown in Figures 1 and 2 respectively. It does not move to the final position of the element 46 shown in Figure 3.
- Element 48a is similar to element 48 but is mounted on plate 28 so as to lie on the other side of the thread path as viewed from the front of the machine. Element 48a therefore pivots from left to right as viewed in Figure 4 and carries each thread against its nozzle part 24 as the latter moves towards its closed position. Element 48a is then pivoted leftwards as viewed in Figure 4 to leave the texturizing thread path free and element 46a is pivoted rightwards to clear the cooling drum 20 ready for the next lacing operation.
- Figure 6 and 7 illustrate a carrier plate 28 and two pairs of carrier arms 30, 32 for nozzle parts 22, 24.
- Arms 30 are rigidly fixed to the plate 28 and each arm 30 (upper and lower) carries a mounting structure for a pair of nozzle parts 22.
- Each mounting structure comprises a stud 62 ( Figure 6) carrying a plate 64 which projects to either side of the stud 62.
- Each plate 64 has a pair of upwardly facing openings to receive necks 66 formed on studs secured to the nozzle portions 22.
- Each nozzle stud has a rounded head 68 engaging the arm 30.
- each nozzle part 22 is suspended by its studs between the upper and lower plate 64 while being easily removable for maintenance and replacement. Since the nozzle parts 22 remain in fixed positions on the arms 30 during normal operation, it is convenient to connect inlet and outlet leads (not shown) for treatment fluid and/or nozzle heating fluid to the nozzle parts 22.
- Each nozzle part 22 can however pivot to a limited extent about the points of contact between the heads 68 on its studs and the arms 30, the necks 66 providing sufficient play to enable this.
- Arms 30 also carry between them a spindle 70 located in suitable bearing bushes 72 (Figure 7).
- the upper arm 30 and bearing bush 72 have been omitted from Figure 6 to show the mechanism underneath them.
- Upper and lower sleeves, 74 and 76 respectively, are rotatably mounted on spindle 70.
- Sleeve 74 is integral with the upper arm 32 and sleeve 76 is integral with the lower arm 32.
- each arm 32 is approximately in the form of a dog-leg lever, and the free ends of the arms are joined by connector piece 78 which extends above the upper arm 32 and below the lower arm 32.
- connector 78 is formed with upper and lower recesses, the lower recess 80 being seen in Figure 6A.
- Each recess has associated therewith a nozzle mounting system which is the same for each recess, so that only one will be described in detail.
- a plate 82 similar to and immediately opposite the plate 64, is secured to the connector 78 by screws 84.
- the upwardly facing openings in the plate 82 receive necks on studs 86 on the nozzle parts 24.
- the rounded heads on studs 86 engage an abutment surface on a back-up element 88 which is secured in the recess 80 by a retaining pin 90.
- the surface 87 of element 88 is cut away at an angle from an apex 89 to leave spaces between itself and the end wall of recess 80 as best seen in Figure 6.
- each plate 82 The material and thickness of each plate 82 is chosen so that it is flexible under the forces applied to it in use. Thus, each plate 82 can flex about its mounting on the connector 78. Also, each back-up element 88 can pivot about the point of contact of its apex 89 with the rear wall of the recess 80, sufficient play being provided around the pin 90 to enable this. Still further, the material, dimensions and spacing of arms 32 are so chosen that the arms can flex independently, enabling the rigid connector 78 to adopt a small angle of inclination relative to the axis of spindle 70.
- the illustrated mounting enables the achievement of good sealing contact despite manufacturing tolerances and without highly accurate tool- setting during mounting of the nozzle parts on the arms. Inaccuracies which result in slight misalignment of the whole nozzle assembly (both nozzles together) relative to the axis of spindle 70 will be taken up by differential flexing of arms 32. Inaccuracies which result in misalignments of individual nozzles, e.g. differences in the alignment of the individual nozzles of the pair and/or differences in the alignment of the parts of an individual nozzle, can be taken up by one or more of three possible movements permitted by the mounting system i.e.
- back-up elements 88 act as balancing means, in the form of balance levers, ensuring that the closing force applied via the arms 32 is effective equally on both nozzles.
- reasonably accurate formation of plane sealing faces 92,94 suffices for achievement of an adequate seal.
- connector 78 which provides the balancing pivot and not the pin 90; the latter is wholly inadequate to withstand the forces involved in closing the nozzles, which forces must be applied via the balance pivots.
- the plates 82 are simply provided as elements of a suspension mounting for the nozzle parts and they do not transmit nozzle-closing forces; they must, however, be capable of flexing in response to such forces when inaccuracies in nozzle alignment make this necessary.
- Movement of the arms 32 to open and close the nozzles is effected by way of the three-part, complex lever 96, 98, 100.
- the central portion 98 of this lever is rotatably mounted on the spindle 70 between sleeves 74 and 76.
- the rightwardly extending wing 100 ( Figure 6) has an angular cut out 102 to receive a correspondingly formed edge on a sleeve 104 which is secured between the upper and lower arms 32 by a spindle 106.
- Sleeve 104 is rotatable about the spindle 106 for a purpose which will be described further below. For the present, however, it is to be assumed that sleeve 104 is held in the position illustrated in Figure 6 so that clockwise rotation of the complex lever about spindle 70 will cause corresponding rotation of the arms 32 by way of the sleeve 104.
- the leftwardly extending wing 96 (as viewed in Figure 6) of the complex lever carries at its free end a downwardly projecting plate 108. At least the lower arm 32 has a triangular projection 10 ( Figure 6) providing a surface opposed to the plate 108. A suitable compression spring connection 112 is made between plate 108 and projection 110 on the lower arm 32. Thus, when the complex lever turns anti-clockwise around spindle 70, arms 32 must follow because of the compression spring connection 112.
- the complex lever is biased anticlockwise as viewed in Figure 6 by a compression spring 114 acting between plate 28 and a head 118 which engages the wing 96 of the lever.
- a compression spring 114 acting between plate 28 and a head 118 which engages the wing 96 of the lever.
- the nozzles will be biased open.
- the necessary closing force is applied to wing 100 via the head 118 formed on a connecting rod 120 fixed to the piston of a piston and cylinder unit, the cylinder of which is shown at 122. Cylinder 122 is secured in the plate 28.
- the piston and cylinder unit is pneumatically operated and is single acting in a sense tending to turn the complex lever in a clockwise direction and with a force sufficient to overcome the compression spring 114 and to produce an adequate sealing pressure between the surfaces 92, 94 in the nozzles.
- a pressure sensitive switch responsive to pressurisation of cylinder 122 is used to control supply of texturising fluid to the nozzles so that supply is cut off as soon as the nozzles open.
- the cylinder is controlled automatically to have two closing stages. In the first stage, the cylinder exerts a relatively small closing force, sufficient to overcome spring 114, and the piston moves relatively quickly to bring the nozzle parts from the full position into initial engagement. The cylinder then exerts a relatively large closing force, sufficient to ensure an adequate seal, and the nozzle parts more relatively slowly to their fully closed, passage sealing positions.
- the normal degree of opening required of the nozzles is not very large. In the pivoting system illustrated, as opening angle less than 15° is satisfactory, and an opening angle of 5-10° is normally adequate for lacing up with the illustrated guide system. However, a greater degree of opening will be required for maintenance of the nozzles and for replacement of nozzle portions. This greater degree of opening is enabled by the spring connection 112 and the rotatability of sleeve connector 104.
- the latter has connected thereto an operating lever 124 which projects radially outwardly from spindle 106 through a suitable opening (not shown) provided in connector 78.
- Lever 124 is biased anticlockwise as viewed in Figure 6 by a tension spring 126 extending between itself and a pin 128 secured in the upper arm 32.
- sleeve 104 is biased into its normal position shown in Figure 6 in which it maintains a force transmitting connection between the complex lever and the arms 32.
- lever 124 can be manually pivoted in a clockwise direction as viewed in Figure 6, against the bias of spring 126 through the angle X. This breaks the force transmitting connection between the complex lever and the arms 32, and leaves the latter free to rotate through a substantially greater angle in a nozzle-opening direction.
- This relatively free pivoting of the arms 32 about spindle 70 can continue until a catch element 130 on sleeve 104 engages a corresponding catch element 132 on plate 28. The nozzles are then held open until the catch is manually released by operation of the lever 124 to enable return of the arms 32 to the operational position shown in Figure 6.
- the arrangement may be such that this greater degree of opening of the nozzles is impossible while the nozzles are in the normal texturing position because of the closeness of the nozzles to the roller 16.
- the system moving carrier 28 i.e. bar 34, guides 38, 40 and cylinder 44
- the system moving carrier 28 may be adapted to move the carrier still further forward than the dotted line position shown in Figure 5, to a maintenance position in which the above described maintenance operations can be carried out. This additional movement may occur in response to operation of a suitable button on the machine control panel.
- Closing forces are therefore transmitted via rolling/pivoting contact surfaces.
- the closing forces could be transmitted via other means providing the necessary flexibility e.g. via some form of compressible or torsion connection, instead of transmission of forces via contact surfaces.
- the illustrated, purely mechanical, arrangement is far simpler and less likely to give rise to maintenance problems.
- one part may have guide pins such as those shown at 93 (dotted lines) in Figure 6 and the other may have openings to receive such pins.
- the invention is not limited to a nozzle assembly comprising a pair of individual treating nozzles on the same carrier - there could be only one such nozzle per carrier (station) or more than two. Where a plurality of nozzles is provided in one assembly, the nozzles could have individual closing means, and there would then be no need for a balancing device to balance the effect of a single closing means on the nozzles of the plurality. However, such an arrangement would demand a considerable amount of space and would also need a sophisticated control system to enable desired relative operation of the nozzles in the assembly. Also, more than one treating passage could be provided through a single openable and closable nozzle block, but this will complicate the problems of ensuring adequate sealing of the block, particularly between the passages through it.
- the bias spring 114 could be omitted if the closing means (cylinder 122) is made double acting, or could be replaced by a controllable opening means such as an additional fluid pressure operated device.
- the degree of opening of the nozzle could be made such that it is unnecessary to provide for additional opening of the nozzle for maintenance purposes, and this will enable simplification of the force transmitting linkage between the nozzle and the force-producing means (cylinder 122).
- the relatively small opening angle attained in the illustrated system is preferred because it enables relatively rapid closing of the nozzle once it has reached its forward position, because it improves the safety of the system by reducing the risk of an attendant catching his hand between the nozzle parts and because it reduces the risk of damage to the system "by reducing the risk of an attendant inserting tools or other elements between the nozzle parts.
- the relatively small normal opening angle reduces the demand for space around the nozzle at least during normal operation, and such space is always at a premium in texturing machines.
- special arrangements, such as additional forward movement of the nozzle assembly can be made for special circumstances such as maintenance/ replacement of nozzle parts.
Abstract
Description
- The present invention relates to a thread treating apparatus comprising a treating nozzle through which the thread moves along a substantially predetermined path. The thread is usually subjected to a treating fluid, generally a gas or vapor, while passing through the nozzle. The invention is intended particularly, but not exclusively, for use in thread texturizing apparatus, but it may also have application where the treating nozzle is used to produce entanglements in the thread passing through it. The term "thread" when used herein refers to any continuous textile element, particularly but not exclusively synthetic filamentary material, whether mono-filamentary or multi-filamentary.
- Thread texturizing by means of a texturizing nozzle (or "jet") is well known - see for example US-A-3 714 686 and 4 100 659 as examples only. These processes may operate on thread drawn from a bobbin, or upon thread received directly from a spinneret producing synthetic filament. In the latter case, there is a well known problem concerned with lacing of the continuously moving thread into the texturizing nozzle.
- In one approach to this problem, the continuously moving thread is drawn past the end of a tubular nozzle, the thread is severed in the region of the nozzle entrance, and the free end so formed is blown or sucked into the nozzle - see for example US-A-4 051 581 and DE-A--2 817 487. While these techniques can be made to work satisfactorily, they demand a degree of skill on the part of the machine operator and they also necessitate the insertion of special lace up devices in a relatively small free space available around the texturizing nozzle.
- An alternative approach, using an openable and closable nozzle, has already been suggested in GB-A-872 234, US-A-2 938 257, 3 167 847 and 3 261 071 and DE-B-2 049 740.
- US-A-3237269 also describes an openable and closable nozzle in which one of the nozzle parts has a flexible mounting in the form of a thin web. This web permits the flexibility mounted part to be forced away from the other part against the bias provided by the web. The nozzle parts have flat mating surfaces. This US specification is concerned primarily with opening of the nozzle and hardly mentions the closing operation. There is no consideration of the question of achieving face-to-face sealing contact of the mating surfaces on the nozzle parts.
- The previously mentioned DE-B-204970 refers to the possibility that the mutually contacting parts of an openable and closable nozzle can be made of an elastically deformable material. That is no indication as to how this feature can be exploited to obtain face-to-face sealing contact of the contact surfaces.
- It is an object of the present invention to provide a thread treating nozzle in accordance with the preamble of claim 1 and which provides an effective seal at the interface between the nozzle parts without demanding unduly onerous manufacturing tolerances or special seal designs.
- The object is achieved in that the flexible mounting comprises a plurality of mounting elements movable relative to each other to enable relative adjustment of the parts into face-to-face sealing contact despite initial localised contact between the parts.
- By way of example an embodiment of the invention will now be described with reference to the accompanying diagrammatic drawings, in which
- Figure 1 is a front view of a texturizing station in a texturizing apparatus according to the invention,
- Figures 2 and 3 show some of the parts shown in Figure 1 in different dispositions,
- Figure 4 is a view similar to Figure 3 but illustrating a modified thread guide arrangement,
- Figure 5 is a side elevation of the system shown in Figures 1 to 3 and showing the important parts in two different operating dispositions,
- Figure 6 is a more detailed plan view (partially cut away) of a thread treating nozzle in accordance with the invention, together with a carrier therefore,
- Figure 6A is a side elevation in section of a detail of Figure 6 viewed on the line VI-VI in Figure 6, and
- Figure 7 is a section on the line VII-VII shown in Figure 6 but with some parts otthe mechanism removed.
- Figures 1 to 3 and 5 illustrate a texturizing "station" in which two
threads threads thread 10 but will be understood to apply equally tothread 12. - The station comprises pre-heating
rolls downstream roll 16. The thread is then passed to a texturizingnozzle 18 which is located as close as possible to theroller 16. From thenozzle 18, the thread passes to acooling drum 20. After passing around a predetermined portion of circumference of the drum, as indicated by the angle a in Figure 1, the thread passes to a suitable wind-up (not shown). - In order to facilitate lacing up, the
nozzle 18 is formed in twoparts thread passage 26 extending through the nozzle and openable and closable by relative movement of the nozzle parts. Since the exact form of thetreatment passage 26 is not a feature of the present invention, it is illustrated in the drawings as a simple straight-through passage. It will be understood however that the exact form of this passage may be adapted to suit the texturizing process which is to be used in the nozzle. At least one part is also provided with an infeed port (not shown) for treatment fluid required in the process. -
Nozzle parts plate 28.Nozzle part 22 is rigidly fixed to theplate 28 bycarrier arms 30 extending forwardly from the plate.Nozzle part 24 is also mounted oncarrier arms 32, but these arms are movably mounted on theplate 28 to movenozzle part 24 between the closed position in which it engages nozzle part 22 (Figure 1) and an open position in which it is spaced fromnozzle part 22 to leave a gap for taking in of a filament into the passage 26 (Figure 2). A suitable device for movingnozzle part 24 will be described below with reference to Figures 6 and 7. -
Plate 28 is secured to a carrier bar 34 (Figure 5) extending rearwardly from the plate into the machine frame, part of which is indicated at 36 in Figure 5.Bar 34 is suspended from a guide track in the form of arod 38 fixedly mounted in the machine frame by means not shown. The suspension is by way ofslider element 40 which can slide onrod 38 with low friction. Also secured to thebar 34 is aconnector rod 42 connecting the bar with the piston (not shown) of a pneumatically operated, double acting piston and cylinder unit. The cylinder of this unit is shown at 44 and is fixedly mounted in the machine frame by means not shown. Reciprocation of the piston as indicated by the double headed arrow in Figure 5 carries theplate 28, and the nozzle pair carried thereby, between the retracted position shown in full lines in Figure 5 and the extended position shown in dotted lines in the same Figure. - In order to enable semi-automatic lacing up of the nozzles, a controllably movable
thread guide element 46 is provided to engage the threads downstream of the nozzles pair considered along the thread paths.Element 46 is plate-like, with a W-shaped edge providing two V-shaped notches lever 50 which is carried by a pivot mounting 54 in the body of the machine. As seen in Figures 1 and 5,element 46 is in its inoperative position in which lever 50 projects forwardly and to the right from mounting 54 at an angle of about 45° to the plane of Figure 1. As best seen in Figure 5,element 46 is held clear of thedrum 20 so that an operator can easily lay threads in theopen notches mounting 54 is substantially parallel to the thread paths betweenroller 16 anddrum 20, andlever 50 is pivotable on this mounting to swingelement 46 through a position in which the apices of the V-notches intersect, or at least pass very close, to respective thread paths. The pivot axis ofmounting 54 is preferably aligned with the thread paths as viewed from the front of the machine, but in order to avoid cluttering the drawing, it has been shown slightly offset in Figure 1. The principle is the same for both positions of the pivot axis. - In addition to the
guide element 46, which engages the threads downstream of thenozzles 18, the guide system comprises anupstream guide element 48, having a W-guide edge similar to that onelement 46.Element 48 is mounted onplate 28 for movement therewith, being carried by a lever 52 (Figure 5).Lever 52 is mounted onplate 28 by pivot mounting 56 so that, whenplate 28 is in its forward position,element 46 can be swung through a position in which the apices of its notches intersect or pass very close to the desired thread paths. Pneumatically operated piston and cylinder units (not shown) are provided to rotatelevers element 48 also has a fully withdrawn position, shown in Figure 1, in which it cannot contact a thread passing along the normal texturing thread path betweenroller 16 anddrum 20. Thus, after lacing up is complete theupstream guide element 48 does not contact the thread while the latter is in its preheated state immediately prior to entering thenozzle 18; the thread is extremely sensitive in this state and contact with the guide element during normal texturing operation would result in uncontrollable variations in the textured thread quality. Similarly, thedownstream element 46 cannot contact the fully textured thread leaving thenozzle 18; such contact would interfere severely with the texturing operation, and would greatly jeopardize if not nullify it. - A lacing up operation using this system takes place in the following general sequence (
thread 10 only will be referred to, but the same applies to thread 12). In the starting condition,plate 28, andelement 48 carried thereby, lie in the retracted position and the texturing nozzle is closed. In this condition the nozzle is heated by any suitable means. Due to this pre-heating, the nozzle will be ready for immediate texturing operation when it reaches the extended position. The operator takes up the thread to be textured in a suitable portable suction apparatus (not shown) and wraps the continuously moving thread a predetermined number of times around therollers drum 20 does not interfere. The central triangular projection on the guide edge ofelement 20 separates the threads automatically. He can then press an initiating button on a control panel (not shown) on the machine so that subsequent stages of the lacing operation are effected automatically. - In the first stage of the automatic lacing operation, guide
element 46 is moved to the position shown in Figure 2 in which the thread is held in the plane of the desired thread path between theroller 16 and thecooling drum 20. Thenozzle 18 is now opened andplate 28 is moved to the right as viewed in Figure 5 so that the thread is taken in between thenozzle parts thread passage 26 as further described below. Supply of texturing fluid to the nozzle is started automatically as soon as the nozzle is closed so that texturing begins immediately. Supply of such fluid is cut off automatically whenever the nozzle is open. - Operation of the guides is as follows. When the operator presses the initiating button,
lever 50 is first pivoted around mounting 54 to bring theelement 46 into the intermediate position shown in Figure 2 in which the threads (shown in full lines) lie in the plane of the texturizing paths, but not in the paths themselves (indicated in dotted lines). As the nozzles are moved forward to take in the threads, the spacing of thenozzle parts part 24 does not interfere with the lengths of thread extending betweenroller 16 andelement 46,element 48 is simultaneously moved into alignment with the threads, although still in its fully withdrawn position shown in Figure 2 and therefore without interference with the threads at this stage. - When the nozzles have reached their fully extended position, levers 50 and 52 are pivoted simultaneously to carry the lengths of thread already located within the nozzles into contact with the
nozzle parts 22 and in particular to lay the threads within thepassage portions 26 defined in those nozzle parts. This condition is shown in Figure 3 and it will be seen that each thread is deflected slightly beyond its texturing path as indicated at a and b in that Figure. The threads slide on the walls of the V notches to lie at the apices thereof and are thus accurately located relative to the thread paths. It will be noted also, that the spacing betweennozzle parts elements drum 20 and texturizing can proceed normally. - It is not necessary that the thread guides should lay the thread upon the fixed
nozzle part 22. Figure 4 illustrates a modification in which the guides lay the threads uponmovable nozzle parts 24.Guide element 46a is similar toelement 46 and is similarly mounted, but is movable only between the fully withdrawn and intermediate positions shown in Figures 1 and 2 respectively. It does not move to the final position of theelement 46 shown in Figure 3.Element 48a is similar toelement 48 but is mounted onplate 28 so as to lie on the other side of the thread path as viewed from the front of the machine.Element 48a therefore pivots from left to right as viewed in Figure 4 and carries each thread against itsnozzle part 24 as the latter moves towards its closed position.Element 48a is then pivoted leftwards as viewed in Figure 4 to leave the texturizing thread path free andelement 46a is pivoted rightwards to clear thecooling drum 20 ready for the next lacing operation. - One example of a carrier and nozzle assembly suitable for use in the apparatus shown in Figures 1 to 5 will now be described in further detail with reference to Figures 6, 6a and 7. Parts corresponding with the earlier Figures bear the same reference numerals. It will be seen therefore that Figure 6 and 7 illustrate a
carrier plate 28 and two pairs ofcarrier arms nozzle parts Arms 30 are rigidly fixed to theplate 28 and each arm 30 (upper and lower) carries a mounting structure for a pair ofnozzle parts 22. Each mounting structure comprises a stud 62 (Figure 6) carrying aplate 64 which projects to either side of thestud 62. Eachplate 64 has a pair of upwardly facing openings to receivenecks 66 formed on studs secured to thenozzle portions 22. Each nozzle stud has a roundedhead 68 engaging thearm 30. Thus, eachnozzle part 22 is suspended by its studs between the upper andlower plate 64 while being easily removable for maintenance and replacement. Since thenozzle parts 22 remain in fixed positions on thearms 30 during normal operation, it is convenient to connect inlet and outlet leads (not shown) for treatment fluid and/or nozzle heating fluid to thenozzle parts 22. Eachnozzle part 22 can however pivot to a limited extent about the points of contact between theheads 68 on its studs and thearms 30, thenecks 66 providing sufficient play to enable this. -
Arms 30 also carry between them aspindle 70 located in suitable bearing bushes 72 (Figure 7). Theupper arm 30 and bearingbush 72 have been omitted from Figure 6 to show the mechanism underneath them. Upper and lower sleeves, 74 and 76 respectively, are rotatably mounted onspindle 70.Sleeve 74 is integral with theupper arm 32 andsleeve 76 is integral with thelower arm 32. As best seen from Figure 6, eacharm 32 is approximately in the form of a dog-leg lever, and the free ends of the arms are joined byconnector piece 78 which extends above theupper arm 32 and below thelower arm 32. At itsedge facing arms 30connector 78 is formed with upper and lower recesses, thelower recess 80 being seen in Figure 6A. Each recess has associated therewith a nozzle mounting system which is the same for each recess, so that only one will be described in detail. - A
plate 82, similar to and immediately opposite theplate 64, is secured to theconnector 78 byscrews 84. The upwardly facing openings in theplate 82 receive necks onstuds 86 on thenozzle parts 24. The rounded heads onstuds 86 engage an abutment surface on a back-upelement 88 which is secured in therecess 80 by a retainingpin 90. The surface 87 ofelement 88 is cut away at an angle from an apex 89 to leave spaces between itself and the end wall ofrecess 80 as best seen in Figure 6. - The material and thickness of each
plate 82 is chosen so that it is flexible under the forces applied to it in use. Thus, eachplate 82 can flex about its mounting on theconnector 78. Also, each back-upelement 88 can pivot about the point of contact of its apex 89 with the rear wall of therecess 80, sufficient play being provided around thepin 90 to enable this. Still further, the material, dimensions and spacing ofarms 32 are so chosen that the arms can flex independently, enabling therigid connector 78 to adopt a small angle of inclination relative to the axis ofspindle 70. - The illustrated mounting enables the achievement of good sealing contact despite manufacturing tolerances and without highly accurate tool- setting during mounting of the nozzle parts on the arms. Inaccuracies which result in slight misalignment of the whole nozzle assembly (both nozzles together) relative to the axis of
spindle 70 will be taken up by differential flexing ofarms 32. Inaccuracies which result in misalignments of individual nozzles, e.g. differences in the alignment of the individual nozzles of the pair and/or differences in the alignment of the parts of an individual nozzle, can be taken up by one or more of three possible movements permitted by the mounting system i.e. - I. pivoting of the
nozzle parts arms 30 or back upelements 88, the necks of the studs having sufficient play in thesupport plates parts 22 can be omitted, all adjustment occurring by movement ofparts 24. This movement takes account of engagement of the parts on an individual nozzle on one side before engagement of the same parts on their opposite sides. - II. pivoting of
elements 88 about theirapexes 89, and flexing ofplates 82. This movement occurs if the top (or bottom) of one nozzle engages before the top (or bottom) of the other, i.e. the sealing surfaces of the two nozzles are not co-planar even after movement I (this may occur whether the sealing planes are parallel or relatively inclined). - III. flexing of
arms 32. If, say, one nozzle has closed completely and the bottom of the other has engaged before its top (i.e. the sealing planes of the nozzles are not parallel even after movement II), then theupper arm 32 must continue moving in the closing direction to force the top of the second nozzle to close, this arm movement being accompanied by pivoting ofupper element 88. - It will be seen, therefore, that back-up
elements 88 act as balancing means, in the form of balance levers, ensuring that the closing force applied via thearms 32 is effective equally on both nozzles. Thus, reasonably accurate formation of plane sealing faces 92,94 (Figure 6) suffices for achievement of an adequate seal. It is to be noted, however, that for eachelement 88 it is the abutment ofapex 89 withconnector 78 which provides the balancing pivot and not thepin 90; the latter is wholly inadequate to withstand the forces involved in closing the nozzles, which forces must be applied via the balance pivots. Also it is the abutment of theelements 88 with the rounded heads on thestuds 86 which provides the force-transmitting connection between the balance levers and thenozzle parts 24. Theplates 82 are simply provided as elements of a suspension mounting for the nozzle parts and they do not transmit nozzle-closing forces; they must, however, be capable of flexing in response to such forces when inaccuracies in nozzle alignment make this necessary. - Movement of the
arms 32 to open and close the nozzles is effected by way of the three-part,complex lever central portion 98 of this lever is rotatably mounted on thespindle 70 betweensleeves sleeve 104 which is secured between the upper andlower arms 32 by aspindle 106.Sleeve 104 is rotatable about thespindle 106 for a purpose which will be described further below. For the present, however, it is to be assumed thatsleeve 104 is held in the position illustrated in Figure 6 so that clockwise rotation of the complex lever aboutspindle 70 will cause corresponding rotation of thearms 32 by way of thesleeve 104. - The leftwardly extending wing 96 (as viewed in Figure 6) of the complex lever carries at its free end a downwardly projecting
plate 108. At least thelower arm 32 has a triangular projection 10 (Figure 6) providing a surface opposed to theplate 108. A suitablecompression spring connection 112 is made betweenplate 108 and projection 110 on thelower arm 32. Thus, when the complex lever turns anti-clockwise aroundspindle 70,arms 32 must follow because of thecompression spring connection 112. - The complex lever is biased anticlockwise as viewed in Figure 6 by a
compression spring 114 acting betweenplate 28 and ahead 118 which engages thewing 96 of the lever. Thus, in the absence of a closing force onwing 100 sufficient to overcome the bias ofspring 114, the nozzles will be biased open. The necessary closing force is applied towing 100 via thehead 118 formed on a connectingrod 120 fixed to the piston of a piston and cylinder unit, the cylinder of which is shown at 122.Cylinder 122 is secured in theplate 28. The piston and cylinder unit is pneumatically operated and is single acting in a sense tending to turn the complex lever in a clockwise direction and with a force sufficient to overcome thecompression spring 114 and to produce an adequate sealing pressure between thesurfaces cylinder 122 is used to control supply of texturising fluid to the nozzles so that supply is cut off as soon as the nozzles open. - In its preferred form the cylinder is controlled automatically to have two closing stages. In the first stage, the cylinder exerts a relatively small closing force, sufficient to overcome
spring 114, and the piston moves relatively quickly to bring the nozzle parts from the full position into initial engagement. The cylinder then exerts a relatively large closing force, sufficient to ensure an adequate seal, and the nozzle parts more relatively slowly to their fully closed, passage sealing positions. - The normal degree of opening required of the nozzles is not very large. In the pivoting system illustrated, as opening angle less than 15° is satisfactory, and an opening angle of 5-10° is normally adequate for lacing up with the illustrated guide system. However, a greater degree of opening will be required for maintenance of the nozzles and for replacement of nozzle portions. This greater degree of opening is enabled by the
spring connection 112 and the rotatability ofsleeve connector 104. The latter has connected thereto anoperating lever 124 which projects radially outwardly fromspindle 106 through a suitable opening (not shown) provided inconnector 78.Lever 124 is biased anticlockwise as viewed in Figure 6 by atension spring 126 extending between itself and apin 128 secured in theupper arm 32. Thus,sleeve 104 is biased into its normal position shown in Figure 6 in which it maintains a force transmitting connection between the complex lever and thearms 32. However,lever 124 can be manually pivoted in a clockwise direction as viewed in Figure 6, against the bias ofspring 126 through the angle X. This breaks the force transmitting connection between the complex lever and thearms 32, and leaves the latter free to rotate through a substantially greater angle in a nozzle-opening direction. This relatively free pivoting of thearms 32 aboutspindle 70 can continue until acatch element 130 onsleeve 104 engages acorresponding catch element 132 onplate 28. The nozzles are then held open until the catch is manually released by operation of thelever 124 to enable return of thearms 32 to the operational position shown in Figure 6. - The arrangement may be such that this greater degree of opening of the nozzles is impossible while the nozzles are in the normal texturing position because of the closeness of the nozzles to the
roller 16. The system moving carrier 28 (i.e.bar 34, guides 38, 40 and cylinder 44) may be adapted to move the carrier still further forward than the dotted line position shown in Figure 5, to a maintenance position in which the above described maintenance operations can be carried out. This additional movement may occur in response to operation of a suitable button on the machine control panel. - It will be understood that the operating mechanism illustrated in Figures 6 and 7 is shown by way of example only and that alternative mechanisms may be designed to enable the sequence described with reference to Figures 1 to 5. For example, we have referred to flexibility in the mountings of the nozzle parts to enable establishment of face-to-face sealing contact of those parts. In the illustrated embodiment, this flexibility arises from two sources - (a) the inherent flexibility of the
arms 32, and (b) play in the force-transmitting connections between the nozzle parts and the force applying means (cylinder 122). For the individual nozzle, such play is provided between itssupport studs 86 and the surfaces which apply closing forces to them. For the nozzle assembly as a whole, additional play is provided at the balance regions of the balance levers 88. Closing forces are therefore transmitted via rolling/pivoting contact surfaces. The closing forces could be transmitted via other means providing the necessary flexibility e.g. via some form of compressible or torsion connection, instead of transmission of forces via contact surfaces. However, the illustrated, purely mechanical, arrangement is far simpler and less likely to give rise to maintenance problems. To ensure that the parts are brought together accurately despite the play provided in their mountings, they may have interengaging guide elements. For example, one part may have guide pins such as those shown at 93 (dotted lines) in Figure 6 and the other may have openings to receive such pins. - The invention is not limited to a nozzle assembly comprising a pair of individual treating nozzles on the same carrier - there could be only one such nozzle per carrier (station) or more than two. Where a plurality of nozzles is provided in one assembly, the nozzles could have individual closing means, and there would then be no need for a balancing device to balance the effect of a single closing means on the nozzles of the plurality. However, such an arrangement would demand a considerable amount of space and would also need a sophisticated control system to enable desired relative operation of the nozzles in the assembly. Also, more than one treating passage could be provided through a single openable and closable nozzle block, but this will complicate the problems of ensuring adequate sealing of the block, particularly between the passages through it.
- The
bias spring 114 could be omitted if the closing means (cylinder 122) is made double acting, or could be replaced by a controllable opening means such as an additional fluid pressure operated device. The degree of opening of the nozzle could be made such that it is unnecessary to provide for additional opening of the nozzle for maintenance purposes, and this will enable simplification of the force transmitting linkage between the nozzle and the force-producing means (cylinder 122). However, the relatively small opening angle attained in the illustrated system is preferred because it enables relatively rapid closing of the nozzle once it has reached its forward position, because it improves the safety of the system by reducing the risk of an attendant catching his hand between the nozzle parts and because it reduces the risk of damage to the system "by reducing the risk of an attendant inserting tools or other elements between the nozzle parts. At the same time, the relatively small normal opening angle reduces the demand for space around the nozzle at least during normal operation, and such space is always at a premium in texturing machines. As described, special arrangements, such as additional forward movement of the nozzle assembly, can be made for special circumstances such as maintenance/ replacement of nozzle parts. - Special advantages are provided by the flexible mounting of at least one part of each nozzle enabling accurate closing and sealing of each nozzle without sealing means additional to the facing surfaces on the nozzle parts. In particular, the illustrated system involving only a single closing force producing element (cylinder 122) and a mechanical linkage to distribute the closing forces in a desired manner (preferably, through not essentially, equally) between a pair of nozzles in an associated nozzle assembly, provides a simple solution to the problem of controlling simultaneously a plurality of nozzles at a given texturing station while taking up the minimum amount of space around the nozzles.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT83111863T ATE35295T1 (en) | 1979-10-02 | 1980-09-08 | THREADING YARN TREATMENT NOZZLES. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8105179A | 1979-10-02 | 1979-10-02 | |
US81051 | 1979-10-02 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP80105347.1 Division | 1980-09-08 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0110359A2 EP0110359A2 (en) | 1984-06-13 |
EP0110359A3 EP0110359A3 (en) | 1984-10-31 |
EP0110359B1 true EP0110359B1 (en) | 1988-06-22 |
Family
ID=22161809
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP80105347A Expired EP0026360B1 (en) | 1979-10-02 | 1980-09-08 | A thread treating apparatus |
EP83111863A Expired EP0110359B1 (en) | 1979-10-02 | 1980-09-08 | Lacing up of thread treating nozzles |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP80105347A Expired EP0026360B1 (en) | 1979-10-02 | 1980-09-08 | A thread treating apparatus |
Country Status (9)
Country | Link |
---|---|
EP (2) | EP0026360B1 (en) |
JP (2) | JPS5673129A (en) |
AT (1) | ATE35295T1 (en) |
AU (1) | AU533504B2 (en) |
BR (1) | BR8006328A (en) |
DE (2) | DE3070211D1 (en) |
ES (1) | ES8203116A1 (en) |
HK (1) | HK92285A (en) |
IN (2) | IN153447B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6076345A (en) * | 1997-02-26 | 2000-06-20 | Maschinenfabrik Rieter Ag | Method and apparatus for generating a yarn composed of at least two yarn components |
US6085395A (en) * | 1996-01-12 | 2000-07-11 | Maschinenfabrik Rieter Ag | Method and apparatus for producing a multicolored yarn from differently colored part-threads of endless filament |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4554716A (en) * | 1984-03-21 | 1985-11-26 | E. I. Du Pont De Nemours And Company | Apparatus for tensioning and forwarding tow |
DE3577733C5 (en) * | 1984-12-03 | 2010-12-30 | Maschinenfabrik Rieter Ag | Yarn treatment jet. |
US4941242A (en) * | 1984-12-03 | 1990-07-17 | Rieter Machine Works, Ltd. | Thread treating nozzles |
DE3661740D1 (en) * | 1985-01-19 | 1989-02-16 | Barmag Barmer Maschf | Yarn texturing jet |
CN1005199B (en) * | 1985-01-19 | 1989-09-20 | 巴马格·巴默机器制造股份公司 | Nozzle for conveying and deforming filaments |
CN1006910B (en) * | 1985-07-20 | 1990-02-21 | 巴马格·巴默机器制造股份公司 | Nozzle used for deformation of filament |
DE3527415A1 (en) * | 1985-07-31 | 1987-02-12 | Dietze & Schell | Apparatus for air swirling and for the bulking of multifilament and stable-fibre yarns |
GB2193232A (en) * | 1986-06-17 | 1988-02-03 | Rieter Ag Maschf | Thread treating nozzles |
DE3667674D1 (en) * | 1986-09-25 | 1990-01-25 | Basf Ag | DEVICE FOR SWIRLING YARNS. |
IT1222871B (en) * | 1987-10-12 | 1990-09-12 | Enzo Scaglia | PROCEDURE AND DEVICE FOR THE SUPPLY OF THE HEAD OF A SPUN WIRE OR SIMILAR FROM A SPOOL AND FOR ITS SENDING TO A PREFIXED POSITION |
DE19548361A1 (en) * | 1995-02-16 | 1996-08-22 | Rieter Ag Maschf | Yarn texturising jet assembly |
TW328097B (en) * | 1995-09-20 | 1998-03-11 | Heberlein & Co Ag | Process and apparatus for guiding and spinning at least one yarn in the moving direction and all yarn channels |
DE59807305D1 (en) | 1998-01-14 | 2003-04-03 | Rieter Ag Maschf | Spin-stretch texturing or stretch texturing machine |
TW538153B (en) † | 1998-03-03 | 2003-06-21 | Heberlein Fibertechnology Inc | Process for air-jet texturing of frill yarn and yarn-finishing device and the application thereof |
DE10302079B4 (en) * | 2003-01-21 | 2006-04-20 | Corovin Gmbh | Apparatus and method for making crimped spunbond fibers or crimped meltblown nonwoven filaments of molten thermoplastic material |
DE102004011777A1 (en) * | 2004-03-09 | 2005-10-06 | Trevira Gmbh | False-wire textured monofilament |
DE102022002956A1 (en) | 2022-08-12 | 2024-02-15 | Oerlikon Textile Gmbh & Co. Kg | Device for entangling a plurality of filaments of a synthetic thread |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2938257A (en) * | 1957-07-23 | 1960-05-31 | American Viscose Corp | Bulked yarn manufacture |
US3237269A (en) * | 1963-09-26 | 1966-03-01 | Du Pont | Yarn bulking jet |
US3261071A (en) * | 1965-05-25 | 1966-07-19 | Du Pont | Yarn treating jet |
BE757346A (en) * | 1969-10-10 | 1971-04-09 | Ici Ltd | PNEUMATIC DEVICE SERVING TO ADVANCE FILAMENTAIR MATERIAL |
US3822449A (en) * | 1972-11-16 | 1974-07-09 | Du Pont | Hinged cap jet |
JPS533323U (en) * | 1976-06-25 | 1978-01-13 |
-
1980
- 1980-09-08 EP EP80105347A patent/EP0026360B1/en not_active Expired
- 1980-09-08 AT AT83111863T patent/ATE35295T1/en not_active IP Right Cessation
- 1980-09-08 EP EP83111863A patent/EP0110359B1/en not_active Expired
- 1980-09-08 DE DE8080105347T patent/DE3070211D1/en not_active Expired
- 1980-09-15 IN IN1050/CAL/80A patent/IN153447B/en unknown
- 1980-09-30 ES ES496007A patent/ES8203116A1/en not_active Expired
- 1980-10-01 AU AU62877/80A patent/AU533504B2/en not_active Ceased
- 1980-10-01 DE DE19803037111 patent/DE3037111A1/en not_active Withdrawn
- 1980-10-01 BR BR8006328A patent/BR8006328A/en unknown
- 1980-10-02 JP JP13680380A patent/JPS5673129A/en active Granted
-
1983
- 1983-12-15 IN IN1523/CAL/83A patent/IN155478B/en unknown
-
1985
- 1985-11-21 HK HK922/85A patent/HK92285A/en unknown
-
1988
- 1988-04-21 JP JP63096952A patent/JPS63288239A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6085395A (en) * | 1996-01-12 | 2000-07-11 | Maschinenfabrik Rieter Ag | Method and apparatus for producing a multicolored yarn from differently colored part-threads of endless filament |
US6094790A (en) * | 1996-01-12 | 2000-08-01 | Maschinenfabrik Rieter Ag | Method and apparatus for producing a multicolored yarn from differently colored part-threads of endless filament |
US6119320A (en) * | 1996-01-12 | 2000-09-19 | Maschinenfabrik Rieter Ag | Method and apparatus for producing a multicolored yarn from differently colored part-threads of endless filament |
US6076345A (en) * | 1997-02-26 | 2000-06-20 | Maschinenfabrik Rieter Ag | Method and apparatus for generating a yarn composed of at least two yarn components |
Also Published As
Publication number | Publication date |
---|---|
BR8006328A (en) | 1981-04-14 |
ATE35295T1 (en) | 1988-07-15 |
JPS5673129A (en) | 1981-06-17 |
ES496007A0 (en) | 1982-03-01 |
AU6287780A (en) | 1981-04-09 |
DE3070211D1 (en) | 1985-03-28 |
JPS63288239A (en) | 1988-11-25 |
EP0110359A3 (en) | 1984-10-31 |
IN153447B (en) | 1984-07-14 |
IN155478B (en) | 1985-02-09 |
HK92285A (en) | 1985-11-29 |
JPS6367570B2 (en) | 1988-12-26 |
ES8203116A1 (en) | 1982-03-01 |
DE3037111A1 (en) | 1981-04-16 |
JPH0219215B2 (en) | 1990-05-01 |
AU533504B2 (en) | 1983-12-01 |
EP0026360A1 (en) | 1981-04-08 |
EP0026360B1 (en) | 1985-02-20 |
EP0110359A2 (en) | 1984-06-13 |
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