US3778963A

US3778963A - Apparatus for wrapping rolls of materials

Info

Publication number: US3778963A
Application number: US00204419A
Authority: US
Inventors: J Straujups; F Bellwood
Original assignee: Birch Brothers Inc
Current assignee: Birch Brothers Inc
Priority date: 1971-12-03
Filing date: 1971-12-03
Publication date: 1973-12-18
Anticipated expiration: 1990-12-18

Abstract

A roll wrapper apparatus for attachment on a web winding machine of the class commonly employed in winding webs of textiles, plastics, and the like, includes means for furnishing and applying a measured length of wrapping material around a roll of cloth or other material which has been wound in the web winding machine. The wrapper apparatus is constructed with means for feeding and cutting a desired length, applying adhesive along one edge of wrapping sheet, means for positioning the wrapper sheet in suitable relation to a wound goods roll, and means for advancing the wrapper sheet into the goods roll while it is rotating in the winder machine. A completed goods roll is doffed from the web winding machine with wrapping secured around it. Control circuitry for the web winding machine may be connected into operating circuits for the wrapping operation so that winding and wrapping may be automatically handled in suitably timed relationship.

Description

United States Patent 1191 Straujups et a1.

[ Dec. 18, 1973 APPARATUS FOR WRAPPING ROLLS OF MATERIALS [75] Inventors: John E. Straujups, Lexington;

Frederick J. Beilwood, Braintree, both of Mass.

[73] Assignee: Birch Brothers, llnc., Somerville,

Mass.

221 Filed: Dec. 3, 1971 21 Appl. No.: 204,419

[52] US. Cl 53/66, 53/211, 53/389 Primary ExaminerTravis S. McGehee Assistant Examiner-John Sipos Attorney-Munroe H. Hamilton 5 7 ABSTRACT A roll wrapper apparatus for attachment on a web winding machine of the class commonly employed in winding webs of textiles, plastics, and the like, includes means for furnishing and applying a measured length of wrapping material around a roll of cloth or other material which has been wound in the web winding machine. The wrapper apparatus is constructed with means for feeding and cutting a desired length, applying adhesive along one edge of wrapping sheet, means for positioning the wrapper sheet in suitable relation to a wound goods roll, and means for advancing the wrapper sheet into the goods roll while it is rotating in the winder machine. A completed goods roll is dofl'ed from the web winding machine with wrapping secured around it. Control circuitry for the web winding machine may be connected into operating circuits for the wrapping operation so that winding and wrapping may be automatically handled in suitably timed relationship.

8 Claims, 17 Drawing Figures PATENTEBUEBI81975 3.778.963

. SIEET 010! 12 PATENTEB DEC 1 8 I973 SIEET 02 0F 12 PATENIEB DEM 8 I973 SKEI 0; OF 12 PAIENIEBHW 3.778.963

SHEET 0B0! 12 PATENTED U58 1 8 I975 SEE? 12 0F 12 APPARATUS FOR WRAPPING ROLLS OF MATERIALS This invention relates in general to a method and apparatus for covering textiles and other sheet materials which are customarily wound on a web winding machine to provide what may be referred to as a goods roll." In one specific aspect, the invention is concerned with a method and apparatus for applying a protective wrapping around a goods roll at a point where the web winding operation has been completed and the goods roll is ready to be doffed.

It is now customary to apply a wrapping of paper or other sheet material to a goods roll after it has been removed from the web winding machine. Usually the wrapping operation is done manually and it is found that rolls handled in this way cannot be wrapped as quickly as they can be produced by the web winding machine, and thus production is slowed and winding is limited to the wrapping operation. Furthermore, the sheet may be subjected to damage in the interval between doffing and application of the wrapping.

It is, therefore, a chief object of the invention to cope with these limitations in the web winding operation and the equipment employed and to provide an improved method and apparatus for applying a wrapping to a goods roll while it is in the web winding machine and before doffing is to take place.

Another specific object of the invention is to devise a wrapper apparatus which can be readily attached to a web winding machine and which can be integrated with conventionalweb winding procedures so that a desirable degree of automation is realized in the processing of a completed goods roll ready for shipment.

Still another object of the invention is to devise a method and means for adhesively securing overlapping portions of a wrapper at the time it is passed around a goods roll.

With these objectives in mind, we have conceived of a method of covering a finished goods roll with a wrapper sheet while the goods roll is still in rotative movement on winding drums of a web winding machine and preferably at a point immediately subsequent to cutting the web which is being drawn off by the winding drums.

My improved method of wrapping is based on the novel concept of providing a flat sheet of wrapping material of a predetermined size, locating the sheet in close proximity to a goods roll just prior to its completion, and feeding the flat sheet into the nip of the winding drums as the Web of textile material is cut off so that the leading edge of the wrapping is held between an outermost edge of the goods roll and adjacent surface of the roll and carried all the way around into a fully wrapped position.

The method may also include, in one preferred embodiment, the step of applying a band of adhesive to a trailing edge of the flat wrapper sheet and utilizing this band of adhesive to adhesively secure overlapping portions of the wrapper sheet against one another.

In carrying out the method of the invention, we have devised a wrapping apparatus which can be attached at an upper side of a web winding machine. In its broadest aspect, the wrapping apparatus includes a wrapper handling frame, a supply roll of wrapper material, means for feeding the wrapper material into the frame and cutting off a desired length of the material, and means for advancing the cut length of the material in a flatwise position into the nip of the goods roll and an adjacent winding drum.

The invention and its other objects and novel features will be more fully understood from a description of the preferred embodiments of the invention shown in the accompanying drawings in which:

FIG. 1 is a perspective view illustrating the wrapping apparatus of the invention attached at the upper side of a web winding machine of conventional construction;

FIG. 2 is another perspective view similar to FIG. I and illustrating the wrapper apparatus of the invention located in a tilted feeding position;

FIG. 3 is an elevational view of a web winding machine illustrating the wrapping apparatus of the invention in one operating position;

FIG. 4 is a plan view of the structure shown in FIG.

FIG. 5 is an end elevational view of a web winding machine illustrating the wrapping apparatus of the invention mounted at the upper side thereof and indicating in dotted lines a wrapper-handling frame in a tilted position;

FIG. 6 is a detail end elevation view of supply roll means together with cutter and adhesive applicator means associated therewith;

FIG. 7 is a cross section taken on the line 7--7 of FIG. 4;

FIG. 8 is a detail end elevational view of the wrapperhandling frame with feed rolls raised and inshoot rolls in a down position;

FIG. 9 is a fragmentary elevational view showing means for raising the material roll carriage;

FIG. 10 is a fragmentary plan view showing a portion of the wrapper and paper probe means supported therein;

FIG. II is another elevational view of roll and belt means for moving a length of paper along the tilting frame;

FIG. 12 is a detail cross sectional view of belt guiding tubular structure;

FIG. I3 is a detail cross sectional view of tension roll means shown in FIGS. 1 and 2;

FIG. 14 is a schematic view of operating controls;

FIG. 15 is a wiring diagram used in the invention;

FIG. 16 illustrates a wrapped roll with a glued edge broken out; and

FIG. 17 illustrates a pair of wound rolls ready to be wrapped.

Attention is directed to FIGS. 1 4 of the drawings in which the roll wrapping apparatus of the invention is shown mounted on a conventional web winding machine. The roll wrapping apparatus illustrated comprises one preferred means for carrying out the method of the invention wherein a measured length of wrapping is cut off and located around a freshly wound goods roll. However, the method of the invention is not limited to the apparatus as hereinafter described in detail, and it should be understood that other means of carrying out the method steps disclosed may be utilized.

The principal parts of the wrapping apparatus illustrated include roll means for supplying a wrapping material such as a web of paper, plastic, or the like, means for drawing off a desired length of the material and cutting it, and a mechanism for advancing the cut length of material into a position in which it can be wrapped around a finished goods roll.

It is intended that our improved roll wrapping apparatus may be utilized with any of the well-known forms of web winding machines used in the art. One such form of web winding machine is exemplified by the web winding structure described in U.S. Pat. No. 3,l67,268, owned by the assignee of the present application, and the invention will be hereinafter disclosed in detail with reference to application on this specific form of web winding machine.

FIGS. 1, 2 and 3 illustrate the apparatus of the invention combined with portions of a web winding machine M of the three-roll class, having a construction generally corresponding to that of U.S. Pat. No. 3,167,268, as shown therein, winding drums W1 and W2 are rotatably supported in suitable bearings in side wall portions of the machine. It is customary in a web winding machine of the class noted, for a web of textile, plastic or the like, to be drawn off from a supply source and led around winding shell means to start building a goods roll. The shell and the goods roll being formed are at first supported on primary winding drums. Thereafter, a partly wound roll is transferred so that it is supported onthe second drum and a third winding drum. Winding then continues until the goods roll is completed and ready to be doffed.

In FIG. 5, we have shown diagrammatically a web W, primary winding drums W1 and W2, a third winding drum W3 and a shell W4 located above the drum W1. Also shown in FIG. 5 in dotted lines, is a fully wound goods roll G, a vertically adjustable cutter blade B and a pneumatic cylinder 131 for actuating the blade B. As will be observed in FIG. 5, the blade B is shown at a point where the goods roll G is ready to be doffed and a cut has just been made to provide a trailing web edge W5 and a new leading edge W6 about to be engaged around the shell W4 to start building a new goods roll. The shell W4 is moved into a position to engage the leading edge W6 by means of a shell feeding mechanism W7 of well-known nature.

As earlier noted, the method of the invention in one preferred form is designed to be carried out in carefully timed relationship to this point referred to where a goods roll is fully wound and a web cut is made. An important feature of this method is the step of entering a sheet of wrapping material between the trailing edge W5 and an adjacent peripheral surface of the wound roll G while the latter member is still rotating and capable of drawing the sheet of wrapping material around itself, for example, into a position such as that shown in FIG. 16 in the drawings.

In carrying out this operation, we combine with the conventional winder components described above, a

wrapper supplying apparatus which is mounted at the upper side of the conventional winder structure noted in a manner such that one part of the apparatus may, at a predetermined point, be moved into a position immediately above the winding shell W4 and the blade B in its raised position.

Considering this apparatus in further detail, attention is directed to FIG. 6. As shown therein, a sheet S of paper or other material suitable for use as a wrapping for the goods roll G is supplied from a roll of such material supported at some convenient point near the winder machine M. It will be understood that the supply roll, while not shown in the drawings, is of conventional nature and may be mounted in a roll stand commonly used for rotatably supporting supply rolls of this nature.

The sheet S is drawn upwardly as indicated diagrammatically in FIG. 6 by means of a pair of drafting rolls 6 and 8, received in a bracket structure 4 mounted at the upper outer side of the machine M as illustrated in FIGS, 2, 3 and 4. Roll 8, as shown in FIG. 1, is driven by a motor 9 and sprocket 9 chained to an upper sprocket 10 on a shaft 12. Also located on this bracket structure 4 in front of the drafting rolls 6 and 8 is an elongated web-supporting brush 14 on a vertically disposed frame part 14a extending upwardly from the bracket 4 as is better shown in FIG. 7. Arranged above the brush 14 and in front of the drafting rolls 6 and 8 is a cutter blade 16 formed with V-shaped cutting teeth as indicated in FIG. 7, and being fixed on an arm 13 retatably mounted at 16a for movement downwardly into contact with a section of sheet S passing across the brush 14 as also suggested in FIG. 6. This provides a means of cutting off a desired length of the sheet material and it will be noted that the sheet material is firmly supported from its underside at opposite edges of the brush 14 by means of guide plates 18 and 19.

As the sheet material advances through the drafting rolls 6 and 8 and under the cutter 16, its length may be determined by a machine operator, or we may employ a counter mechanism which may be of conventional type and connected to the drafting roll drive so as to measure the amount of sheet material which is travelled through the counting rolls at any particular time, or we may employ probe means as hereinafter described. It will be understood that the counter mechanism may be arranged to operate at a predetermined setting so as to actuate the cutting element 16 at a point which will provide a length of sheet material suitable for wrapping a goods roll of any desired size.

As earlier suggested, we may desire to apply an adhesive to a wrapper sheet as it is being supplied, although the invention is not intended to be limited to the use of adhesives. In FIGS. 6 and 9, one form of adhesive applicator denoted by the numeral 24 is illustrated. As shown therein, the applicator 24 is mounted adjacent to the machine M in a vertically adjustable holder 26. The location of the applicator is chosen such that it may overlie one edge of the sheet material S as it leaves the

rolls

6 and 8 so that there may be applied a band of adhesive 28 indicated diagrammatically at the front left side of FIG. 4. Securing the adhesive band to another portion of the wrapper will be more fully described at a later point in the specification.

Arranged on the machine M in cooperating relationship with the means above-described for furnishing a measured and cut length of wrapping material is an adjustable wrapper frame structure generally indicated by the arrow F and illustrated in two positions of adjustment in FIGS. 1 and 2. This adjustable frame structure F supports a movable belt carriage and belt assembly for advancing cut lengths of wrapping material in one direction; sensing means for locating cut lengths of wrapping in a desired position of register with a tinished goods roll such that one edge of the wrapping is centered and lies in parallel relationship to the axis of rotation of the goods roll; and inshoot roll means for moving positioned lengths of wrapping material in a right angular direction into the nip formed by a cut trailing edge of wound material on the goods roll and an adjacent peripheral surface of this roll.

FIG. 1 illustrates the frame and belt carriage in a position to draw off and locate a cut length of the wrapping material and FIG. 2 illustrates the frame and inshoot rolls in a position to deliver the cut length into the nip described.

Considering these parts in more detail, the adjustable frame F comprises a box-shaped enclosure formed from a plurality of frame elements of aluminum or other suitable material solidly secured together as by welding. As shown in FIGS. 1 and 2, the frame elements define a rectangular bottom section F1 from which extend upwardly two vertical end sections F2 and F3. Secured between the end sections F2 and F3 is a rear side rail F4, a center rail F5 and a cross beam F6. Mounted in the bottom section F1 is a flat wrapper support base portion 32 having a smooth upper surface along which a wrapping material may be received and slidably moved along. Along one edge of the base 32 is an angled chute portion 32a.

It will be understood that the overall dimensions of the wrapping support base 32, as well as the width of the sheet material S to be supported on the base 32, are chosen with reference to the axial length and diameter of finished goods rolls to be handled. It will also be appreciated that the width of the sheet material S may exceed slightly the outer peripheral dimension of a fully wound goods roll in order to provide for overlapping. In addition, the length of a measured and cut-off wrapping section may exceed appreciably the axial length of a respective goods roll to provide for end folding and sealing, and in some wrapping operations, it may be desired to wind two rolls simultaneously. In such case, the wrapping will be required to be a length to cover the two rolls.

Rotary adjustment of the frame F is carried out by means of

stub shafts

40 and 42 secured at opposite ends of the bottom section Fl as shown in FIGS. 1 through 6. The stub shafts are rotatably supported in respective bearing members 52 and 54 solidly secured at upper edges of vertical side portions of machine M. Keyed to shaft 40 is a frame positioning arm 44. The arm 44 is connected between a pair of

plunger elements

46 and 48 of respective fluid pressure-operated

cylinders

56 and 58. By means of these cylinders under suitable operator control, or in response to a signal from the web winding machine M, the frame F may be held in a normally horizontally disposed position and then tilted into an angled position at the time a fully wound goods roll is being cut.

The movable belt assembly noted above as being supported in the frame F for advancing lengths of wrapping in one direction, includes a carriage structure of generally rectangular form and denoted by the reference character FC. This carriage structure, as is more clearly shown in FIGS. 1, 2, 4, 5 and 8, is suspended on pivoting brackets FCl, FCZ, and so forth, pinned to opposite end sections F2 and F3 of frame F. The pivoting brackets normally assume a vertically disposed position as shown in FIGS. 1 and 7. They may, however, be retated through a short arc of rotation, as suggested in dotted lines in FIGS. 7 and 8 by means of pneumatically actuated plunger FC3 anchored in the frame section F4 and pivotally attached to an extension piece FC4 secured at one side of the carriage. When rotated into the position shown in FIG. 8, the carriage, it will be observed, is raised a short distance above the base element 32 in the bottom of frame F.

Rotatably supported in one end of the carriage FC in bearing members as 67 and 69 is a shaft 68, and at the opposite end of the carriage is a second shaft 74 similarly supported in bearings. Fixed to the shaft 68 are

rolls

64 and 66, and likewise, fixed to shaft 74 are

rolls

70 and 72. Located around the

rolls

64 and 70 is an endless driving belt 60 and located around rolls 66 and 72 is a second endless driving belt 62.

These roll members and the belts carried by them are driven by a motor 76, bolted or otherwise attached to the carriage, as shown in FIG. 4, and having a sprocket assembly 78 chained to another sprocket 80 and shaft 68. Normally the

belts

60 and 62 are located in a p0sition to engage against and advance a sheet of wrapping material along the base 32 when the carriage PC is in a lowered position. It will be apparent that the belts will be raised upwardly out of contact with such a sheet when the carriage is rotated through a short are of travel by means of the plunger FC3. Edges of the belts may be retained by tension rollers 86 and 88 suspended on

adjustable rods

89 and 90, as shown in FIG. 1 and also indicated in further detail in FIG. 13. We may also desire to hold the belts firmly against the sheet material by means of guide strips as 82 on hangers 84 and 84a, as shown in FIGS. 1 and 11. The guide strip 82 and hanger 84 are also shown in detail in FIG. 12.

In moving a length of wrapping along the frame base 32 by means of the movable belt means described, it may also be desirable, as earlier noted, to provide sensing means for controlling the cut of measured lengths of material. The sensing means may consist in sensing probes as 92 and 94 adjustably supported on slides 96 and 98 on a retaining bar 100 fixed along one side of the frame F as shown in FIGS. 1. and 2. Above the bar 100 is an indicator strip 100a utilized for measuring strips of material and having graduations in inches and fractions of one-quarter inches to provide a direct length reading. The probe 92 may be arranged to lie in the path of travel of a sheet such as S3 (FIG. 4) so that when the probe is contacted by the leading edge of the sheet, a signal is given for paper drive to stop and a cut to be made by the cutter 16, activated by fluid cylinder 16b. Thereafter, the belt feed is again actuated and the cut length of wrapping is advanced to the second probe 94, at which point the cut length is centered.

As earlier noted, there may be instances where wrapping is required to be carried out to cover two rolls simultaneously wound. In this case, we may take an intermediate cut to separate two lengths, both of which will be measured and fed into a wound goods roll assembly. For this purpose, we may provide a sensing probe 102 mounted on a slide 104 in the manner already described. It will be noted that the position of the probe may be selectively adjusted as required to meet with varying wrapper dimensions required for any given wrapping operation.

With a cut length of wrapping advanced into a position of registration relative to the wound goods roll by means of the apparatus above-described, a final step consists in rapidly moving the cut length of wrapping in a direction at right angles to its earlier travel. This is required to be done with the adjustable frame F in the tilted position shown in FIG. 2 and earlier described as being carried out in response to a signal from the cutting mechanism in the machine M.

To accomplish this movement of the cut length of wrapping laterally away from frame F, we have devised a sheet handling mechanism which is conveniently referred to as an inshoot roll assembly. Included in this inshoot roll assembly is a pair of inshoot rolls 110 and 112 which are fixed on a shaft 114, (FlG.3) rotatably mounted in a movable bearing structure 116. As shown in FIG. 7, an upper end portion 116a of the bearing structure 116 is pivotally pinned at 1 16b to the vertical support ll6c, rigidly secured to an underside of the member F5. At an opposite end portion 116d of bearing structure 116 is pivotally attached a plunger 118 vertically movable by a pneumatic cylinder 120. When the plunger 118 is raised, the bearing structure is rotated upwardly a short distance. Fixed on the shaft 114 at one side of bearing structure 116 is a sprocket gear 122 driven by a chain 124, in turn, driven by a sprocket 126 and motor 128. When the motor 128 is activated, it rotates the inshoot rolls and these rolls instantaneously shoot the length of wrapping laterally along the base 32 and downwardly into the nip point of the trailing edge W of goods roll G, earlier described. Rotative movement of the roll G continues and wraps the material around itself and the band of adhesive 28 overlies and becomes adhesively secured to an adjacent surface of the wrapper. The roll may then be doffed and the ends of the wrapper folded and sealed. FIG. 16 illustrates a wrapped roll G1 with a covering edge G2 secured by the band adhesive 28.

In carrying out a typical wrapping operation utilizing the

motors

9, 76 and 128 together with specific electrical control means and air actuated devices, we may provide an operator control center which is not shown in the drawings, but is located at some point closely adjacent to the web winding machine M, and which will have a switch panel. The air actuated controls are illustrated in the schematic diagram of FIG. 14, and the electrical controls are illustrated in the wiring diagram shown in FlG. l5.

it should be understood the wrapping operation of the invention is carried out in combination with operation of an automatic web winding machine M of the type earlier referred to and described in U.S. Pat. No. 3,167,268, and therefore, wrapper controls are located next to the winder controls for easier wiring into connections. All of these controls are connected to 1 l5 v AC and utilize 80 p.s.i. air supply.

With the air supply open and a line pressure of 80 p.s.i. the fluid pressure actuated cylinders 56 and S8 raise the wrapper frame F to a horizontal position above the winder and the frame reamins inactive in this position until such time as the power switch for wrapper controls is turned on. With the power switch turned on and the movable belt carriage FC in a down position, the wrapper feed drive will begin feeding wrapping material, and the wrapper belt drive will carry the wrapper across the frame base 32 until the first probe 92 is disengaged. At this point, the paper is cut and then moved to a centering probe 94 whereupon the wrapper stops. While the wrapper is being moved across the wrapper frame a band of adhesive is being applied on the closing edge of the paper.

The cut wrapper remains in a horizontal position awaiting the step of transferring the goods roll G from the first to the second winding position in the machine M. After roll transfer takes place, the wrapper frame is lowered into the tilted position of FIG. 2 awaiting a signal from the cutter 16 to release the wrapper. When the cut occurs, the inshoot wheels instantly advance the cut wrapper into the trailing edge nip as the goods roll rotates and the adhesive band is drawn around into a sealing position. The wrapped goods roll is then doffed. Thereafter the wrapper frame F returns to a horizontal position, a new length of wrapping begins feeding, and the cycle described is repeated.

ln wrapping split materials involving two rolls on a common mandrel, as may be required in some cases, a probe 102 is used together with the first and second probes for determining lengths of two separate sections of wrapping. Where a third probe arrangement is mounted on the machine and only a single length of wrapper is required, one probe can be disconnected by a selector switch, PB-S. In FIG. 17, two wrapped rolls G3 and G4 are shown and illustrate utilizing two cut lengths of wrapper material secured in the manner shown in FIG. 16.

In FIG. 14, pneumatic controls indicated therein include a compressed air supply CA, wrapper cutter activator elements PCl, PCZ and solenoid valve S1; adhesive nozzle operator NO and a solenoid valve S2; inshot sheels activating

means

56 and 58 and a solenoid valve S5; and carriage lifting means FC3 and a solenoid valve S6.

FIG. 15 is illustrative of one suitable wiring arrangement for carrying out the method of wrapping of the invention in one preferred sequence of steps. Prior to starting the wrapping cycle, a lead edge of the wrapper material is moved as closely as possible to the edge of the wrapper base 32. The probes are then positioned to deliver sufficient material to close the ends of a wrapped roll. As earlier noted, this will depend upon cloth width and roll diameter requirements. With the air line open, the power switch P86 is turned to on. Power switch PB6 has one set of slow-make slow-break contacts permitting activation of two different sets of relays in sequence. The first set of contacts activate a belt carriage solenoid S6 through limit switch L-l, closed when wrapper is horizontal.

With the movable carriage FC down, the length and centering

probes

92 and 94 may be engaged by the wrapper edge as it advances and this completes grounding curcuit and activates low voltage DC relays R R and R, starting motor 9, belt drive motor 76 and raising inshoot wheels 86 and 88 by de-energizing inshoot sheels solenoid S3. The second set of power switch contacts will set up wrapper cutter relays R-3 and R-4. Relays R-3 and R-4 will be activated after the wrapper measuring relay R drops out (circuits for

probes

92 and 94 are broken).

in wrapping and sealing the goods roll with adhesive, a bead of flue or other adhesive is required to be applied along the closing edge of the wrapper, and the adhesive nozzle 24 is required to be properly aligned with the closing edge of the wrapper. Adhesive may be supplied from a tank T-3 pressurized, for example, at 20 p.s.i.g. The nozzle 24 is held out of contact with the wrapper in closely spaced relationship and dispensing of adhesive is controlled through a time delay R-S which is adjusted to avoid adhesive being dispensed before paper passes under the nozzle 24. Relay R-S is energized in parallel with wrapper measuring relay R R-5 drops out and de-energizes glue dispensing solenoid 8-2 when R drops out, therefore adhesive is not applied to the last few inches of the covering edge of the wrapper and this prevents any adhesive from dropping onto the cutter frame.

The wrapper cutter 16 is operated through relays R-2, R-3, and R-4. When relay R is de-energized (and in succession relays R,, R by braking probe circuits) timer circuit R-2 will be energized permitting wrapper feed and belt drive to come to a full stop before the wrapper is cut. This prevents the wrapper from being forced into the cut support by an idling feed motor.

The operator then adjusts timers R-3 and R-4 to minimum required for drives to stop. Timer R-2 is adjusted to reenergize drive support through relays R R R, and R,,.. Relays R and R are tied in with grounded probes and will energize wrapper belt drive motors via relay R Relays R R-1 and R-9 are tied in with wrapper drive motor 9. Relays R-9, R-10 and R-ll are probe safety cut-out relays used to insure that only one probe at any one time can energize motor 9 and belt drive motor 76.

With belt carriage down and probe circuit energized, R-9 is energized, positively cutting out R-ll and completing motor 9 circuit via R-l. Timer R-lll) is used only to eliminate race between relays R9 and R-l 1. With relay R-9 de-energized, R-9 will drop out and pull in R-l 1. With R-ll energized, the second probe is locked out from the circuit, therefore relays R-9 and R, cannot be re-energized until the wrapper is removed and the table returned to horizontal. For the same reasons, the motor 9 circuit is locked out until the table returns to a horizontal position. Relay R-12 is used to hold belt carriage down against wrapper providing additional support for the wrapper while the frame is in an angled position awaiting wrapper transfer. R-lZ is held energized via N/C contacts on L-7 (first jaw down safety) limit switch. Relay R--l3 separates signal from L-7 to R-8 and 12-6 timeers permitting each to pull in and drop out in sequence.

Release ofa cut wrapper length into the goods roll is achieved through a signal from the cloth-cutting mechanism and the wrapper release drive 128. Actual release signal is controlled through relays R-6 and R-8. When a cut signal is given by automatic controls, relays R-6 and R-8 are energized through N/O L-7 cut safety limit switch. R-6 starts a timing signal and inshoot drive motor 128 supplying the initial momentum for wrapper release and for timing out lifts inshoot wheels releasing the wrapper. R-S delays actual out until wrapper is released by R-6. Timing relays R-S is the only relay that will have to be adjusted to compensate for changing line speed. All other relays can be pretimed, set, and do not have to be retimed unless replaced.

From the foregoing description, it will be apparent that we have disclosed an improved method and apparatus for applying a wrapping material around a wound goods roll. A preferred form of wrapping material may be paper, but such materials as plastic and other substances may be employed. The use of a band of adhesive, although providing one convenient means of sealing a closing edge of a wrapper is not, in all cases, necessary, and it may be desired to use sealing tape, heat sealing or the like to secure the wrapper. The folded ends may also be secured by sealing tape.

We claim:

1. In a web winding machine which includes vertically disposed side frames, winding drums transversely disposed between the side frames for receiving and winding a web of material into a goods roll, means for cutting the web when the goods roll is of a desired size, and means for doffing a completed goods roll, the combination of a roll of wrapping material rotatably supported at one of the side frames, means for removing and cutting a measured length of the wrapping material from the supply roll, and means for wrapping the length of material about the completed goods roll while it is rotating on the winding drums, said means for removing a length of material including an adhesive applicator arranged to apply a band of adhesive along one edge of the cut length of material as it is removed from the supply roll, said means for wrapping the length of sheet material including a supporting base for receiving the cut length of material in a flatwise position, means for moving the length of material into a position of register with the winding drums, and means for feeding the length of material into the nip of the winding drums.

2. In a web winder machine which includes vertically disposed side frames, winding drums transversely disposed between the side frames for receiving and winding a web of material in a first winding position and then transferring a partly wound roll into a second winding position, and means for cutting the web when the roll is fully wound, the combination of a wrapper frame mounted at one side of the winder machine, a wrapper supply roll, means in the wrapper frame for drawing off a measured length of wrapper and containing it in the frame, and means for moving the measured length into contact with the goods roll at the time it is cut, said frame being rotatable into and out of an angled feeding position.

3. In a web winder machine which includes vertically disposed side frames, winding drums transversely disposed between the side frames for receiving and winding a web of material in a first winding position and then transferring a partly wound roll into a second winding position, and means for cutting the web when the roll is fully wound, the combination of a wrapper frame mounted at one side of the winder machine, a wrapper supply roll, means in the wrapper frame for drawing off a measured length of wrapper and containing it in the frame, and means for moving the measured length into contact with the goods roll at the time it is cut, said means for drawing off a measured length including a base, a pair of endless driving belts and means for movably engaging the belts with the length of wrapping and advancing into a registered position, said means for moving the measured length into contact with the goods roll including spaced inshoot rolls and means for vertically moving the inshoot rolls into and out of contact with the measured length when the belt drive is raised.

4. A wrapping apparatus for a web winding machine comprising a wrapper frame having a sheet supporting base, means for rotatably supporting the frame on the said winding machine, means for feeding a sheet of wrapping material into the frame, belt driving means mounted in the frame and movable into and out of engagement with the sheet of wrapping material as it passes along the frame base, cutter means for cutting a predetermined length of the wrapping material advanced by the belt driving means, and drive roll means vertically movable in the frame for selectively engaging a cut length of sheet material and moving it out of the frame into a wrapping position.

5. A structure according to claim 4 in which the belt driving means includes a carriage, spaced endless belts supported in the carriage, power driving means for actuating the belts and pneumatically controlled means for swinging the carriage into and out of an operative position in the wrapper frame.

6. A structure according to claim 4 in which the drive roll means includes a pair of spaced driving rolls pivotally supported in the frame and pneumatically actuated means for moving the pivoted drive roll means.

7. A structure according to claim 4 in which the drive roll means includes a shaft having a pair of spaced driving rolls mounted thereon, bracket means for adjustably supporting the shaft, power driving means for rotating the shaft, and pneumatic means for moving the shaft into and out of an operative position.

8. In a'wrapper apparatus for a web winding machine hving winding drums for winding a web of cloth, a cutter located in the machine below the path of travel of the web and control means for actuating the cutter and cutting the web when winding is completed, the combination of a wrapper frame rotatably mounted at the upper side of the winding machine, feed roll means fixed at one side of the machine for supplying wrapper material, a movable belt drive mechanism for raising a lenth of wrapper in the frame, sensing means for measuring a predetermined length of wrapper, a cutting element located between the feed rolls and the movable belt drive, pneumatically controlled means for rotating the movable frame into an inclined delivery position, and vertically movable inshoot roll for moving the cut length of wrapper from the frame while in an inclined position and into contact with a wound roll of goods in the winding machine.

Claims

8. In a wrapper apparatus for a web winding machine hving winding drums for winding a web of cloth, a cutter located in the machine below the path of travel of the web and control means for actuating the cutter and cutting the web when winding is completed, the combination of a wrapper frame rotatably mounted at the upper side of the winding machine, feed roll means fixed at one side of the machine for supplying wrapper material, a movable belt drive mechanism for raising a lenth of wrapper in the frame, sensing means for measuring a predetermined length of wrapper, a cutting element located between the feed rolls and the movable belt drive, pneumatically controlled means for rotating the movable frame into an inclined delivery position, and vertically movable inshoot roll for moving the cut length of wrapper from the frame while in an inclined position and into contact with a wound roll of goods in the winding machine.