US1915200A - Cop, cone or package and method of winding same - Google Patents

Description

E. F. PARKS 1,915,200

COP, CONE, OR PACKAGE AND METHOD OF WINDING SAME Filed Jan. 18, 1929 2 Sheets-Shea?l l June 20, 1933.

June 20, 1933.

E. F. PARKS GOP, CONE, OR PACKAGE AND METHOD OF WINDING SAME Filed Jan. 18, 1929 2 Sheets-Sheet Pars-ra Jaazagiass sm-rss PATENT oFFicE EDWARD F. PARKS, FPDVDDENCE, RHODE ISLAND, ASSIGNGR T DNERSAL WIND- ING COMPANY, 0F BOSTON',A MASSACHUSETTS, A CDRPORATION 0F MASSACHUSETTS cor, conn on EACKAGE Ann METHOD orwmimre SAME Application filed VJanuar? 18, 1929. Serial Noi` 338,383. A'

This invention relates to an improved and other transfer processes.

-One object of the invention .is to provide 4 strand materials and to the cop, cone or package produced thereby. The invention is more particularly concerned with the windingof yarn or thread for use as a supply in` delivering a large number of ends froln a creel l.or other holder in beaming, warping -v a method of winding the yarn, thread or other material on friction or drum-driven winding machines without chaing or abrading the material under the frictional driving contact on the package. p

Another object of the' invention is to provide a method of winding the yarnkthread or other material to package a given length lor weight of the saine with greater economy in the time required for the winding operation.

Another object of the invention is to produce a cop, cone or package containing a continuous llength of yarn, thread or other nia- A terial which willdeliver more freely and uniformly in unwinding, with the tension onl the strand maintained substantially constant.

Another object of the invention is to provide a cop, cone or package which may be so wound as to reduce the time required for winding and which may be used in a magazine creel for supplying the material in continuous lengths without necessitating the stopping of the delivery to recreel fresh suplies. yAnother object of the invention is to provide a cop, cone or package wherein the materialis wound in separate units or individual yarn bodies with the ends of the yarn joined together, and in which one unit may be dis# placed relativelyto the other to facilitate the tying up or splicing of their ends. p

Another object of the invention is to provide a cop, cone or package having the yarn wound in separate units of relatively short traverse so that` the material will deliver .iwithout undue resistance or hindrance from drawing across an extended surface of the package in unwinding over its end.

i Another object of the invention is to provide a cop, cone or `package in which the yarn, thread or otherl material wound inv .such manner that it willdeliver freely over the end, first fromone-unit andl then from another, without obstruction or' restriction dueto drag on the surface of the core or holder on which the material is contained. i Further objects of the improvement are set forth in the following specification which describes a-preferred embodiment of the in- Fig. 2 is a view of the improved copl or cone shown as comprising two units and prepared for delivering the yarn therefrom in a continuous length; and

Fig. 3 is a view illustrating the method of suporting a plurality ofthe packages on a magazine creel to deliver the yarn continuously from the units of oneopackage and then from those of another with the delivery maintained continuousy during the doifing and recreeling of fresh supplies.

The opresent invention, as before noted, relates more particularly tothe winding of yarn, thread or the like on so-called friction or drum-winders in which the package is rotated by frictional contact with a driveroll or drum. The invention may also be practiced, however, in connection with other types of winding machines in which the cop or'package is wound on a positively driven spindle or mandrel.

. In drum-driven winding machinesthe copholder or mandrel is constituted by a deadspindle and the cop is builtl up 'on a suitable core, suchas a paper tube or a wooden or fiber yarn-rceiver of the required size and shape, l rotatably supported thereon. At the start ofthe winding the cop-tube or yarnreceiver is held in contact with the surfaceof the drive-roll or xfriction drum and as the l yarn is traversed longitudinally thereof to drum in accordance with the growth of the winding.

In the type of winding machine as herein illustrated, by way of example, 2 designates the friction-drum or drive-roll which is represented as being supported on and rotated by a horizontal drive-shaft 3. The copholder or winding mandrel is Shown as constituted by a dead-spindle 4 extending longitudinally of the drive-roll 3 and adapted to be inclined with respect to the axis thereof to provide for winding cops or packages of conical form. The dead-spindle 4 is usually carried on a swinging arm or other movable element 5 whereby it is adapted to recede from the drive-roll 2 during the growth in the Winding. In the present illustration the spindle 4 carries a rotatable sleeve or bushing 6 which serves as a bearing or support for the cop-tube or yarnreceiver C, to be later described. A collar 7, xedly secured 4to the spindle 4, holds the sleeve 6 in place on the spindle, and a latch 8 of usual construction is pivoted to the outer end of the spindle to provide means for holding the coptube or yarn-carrier C in place.

The yarn 0r other strand material is traversed longitudinally of the winding spindle by any suitable means, such, for instance, as a reciprocating thread-guide. With the present improved method of winding I employ a plurality of threadguides and, as shown in Fig. 1, two guides l() are used in tandem form. Each guide 10 has a head 1l formed with a slot 12 through which the strands y feed, and, preferably, a guard-hook or thread-retainer 13 extends across the groove in back of the guide to hold the strand in place. f

The guides 10 have tubular bearing-portions 15 which are slidable on a horizontal traverse-rod 16 and above these bearings are forked portions 17 which embrace or hook across a track or guide-bar 18. The guides 10 have their bearingor slide-portions 15 formed with lugs 19 which have threaded holes for receiving screws or studs 2O and 21. The two studs 20 and 21 are connected by a cross link 22 which couples the guides 10 together to be reciprocated as one. One guide 10 is provided with a bowl or roller 23 which may be rotatably supported on the end of the screw or studv 20. The bowl or roller 23 engages with a helical groove 24 in a cam 25, a portion only of which is shown in Fig. l, to provide means for reciprocating the guides in the manner as usually employed in winding machines of the present type.

In the practice of the improv-ed method of winding in accordance with the present invention a novel form of cop-tube or yarnrcceiver is employed as a core and support for the yarn package. The cop-tube or yarnrcccivcr may bc of cylindrical form for use in winding so-called parallel packages, or

it may be of conical shape as illustrated in the present drawings for use in winding tapered packages or cones of the type designed to afford a freer delivery of the yarn in unwinding over the end of the package. In general, the cop-tube oryarn-receiver embodies a plurality of sections adapted to be assembled in axial alinement to be rotatably held on the winding-spindle or mandrel. Essentially, the several sections of the coptube or yarn-receiver are adapted to rotate independently of each other for a purpose as later explained, and furthermore and most important, their peripheral surfaces, either of cylindrical or conical contour, are ar ranged in alinement, or one in continuation of the other.

As shown in Fig. l, th-e cop-tube, core or yarn-receiver C comprises two interfittingy parts b and c, but in other instances it may have a greater number of sections. The main section of the core or carrier C consists of a butt b of frusto-conical shape provided with a tubular extension e projecting forwardly from its smaller end. The rearward or base end of the butt b is reduced somewhat in diameter and formed with a peripheral groove g which serves a purpose as later eX plained. The butt b is bored axially to provide a bearing f at the outer end of its extension e which is fitted to turn freely on the end of the dead-spindle 4. Rearwardly of the smaller bore or bearing f the extension e is counterbored at 7L to a diameter to adapt it to clear the spindle 4; and again at the rearmost end of the butt b is a still larger c ounterbore c adapted to fit over' the rotatable sleeve or bushing 6 on the spindle. The base end of the butt b is further formed with a recess or counterbore Z which provides a shoulder m adapted to bear against the shouldered end of the enlarged portion 9 of the spindle 4, wherebythe latter co-operates with the latch 8 to hold the cop-tube or carrier C from longitudinal movement on the spindle.

The other part or section c of the duplex carrier C is constructed as a sleeve having a central bore o of a size to adapt it to slide over the axial extension c of the butt Z) and to turn freely thereon. The periphery of the section 0 is tapered in accordance with the taper of the main section or butt b and is proportioned to adapt it to aline therewith when the two parts of the carrier are assembled in interconnected relation. The rearward or base end of the section c is provided with a reduced neck portion n which abuts the forward end of the butt b and is formed with a peripheral groove p adapted for a purpose as later explained. The outer surface of the two sections b and c may be roughened or scored to form peripheral serrations s which act to grip the coils of yarn to prevent them from slipping or sliding down the taper of the carrier.

As shown most clearly in Fig. 2, the cop, cone or package wound in accordance with the improved method of the present invention is built up in separate units or yarn bodies Y,l Y surrounding the carriersections b and, c. The carrier C is placed on the spindle 4 with its parts in assembled relation and to start the winding operation the two ends ofthe thread or yarn 1/ are supplied from a suitabe source and caused to feed through the grooves or notches 12 in the thread-guides 10. One end is wound around the base end of the butt b in the groove g as indicated at y in Fig. 2, and the other end is coiled or wound several times around the neck n of the section c within the groove p. A few turns of each end may then be taken around the peripheries of the sections b and c of the carrier C and the latter is then placed with its surface in contact with the periphery of the drive-roll or drum 2 shown in Fig. 1,.-

The drum 2 .is usually driven continuouslj7 while the thread-guides 10 may also have a continuous reciprocation, and immediately the cop-tube or carrier C is placed in contact with the drum it will be driven therefrom. A s the carrier C is rotated from the drum 2 the two strands of yarn ja/ will be wound onto the surface of the sections b and c while being traversed to an extent proportionate to the length of the lindividual sections. y It .has

been explained that the thread-guides 10 are reciprocated from the cam 25 whichv gives the sam-e length of'traverse to each and asfth'e-l machine continues to operate the yarn-'jvvill`V be deposited on the carrier in helical#coils'.- extending back and forth along the surfaces-` i of the sections b and .c and crossingeach' other at intervals in the well-known mannerV of a crosswind.

It has been stated that the present invention not only providesV for an improved method of delivering the yarn but that there is a decided advantage in the method of winding the cop, cone or package and this improved feature will now be explained. It is well known that in winding conical packages the disparity in diameter between the larger or base end of the cone and its apex end causes slippage between the periphery of the yarn mass and the surface of Ithe drive-roll or drum from which it is'rotated. The maximum traction on the driveroll is at the base end of the cone where'a firmer Contact is securedand with this end ofthe cone rotating at the same surface speed as that of the drum there must be a slippage atI the a-pex'end since the' diameter of the drum kis uniform throughout the length of its contacting surface while. the diameter of the cone is variable. This unequal traction between the surface of the yarn mass and.l

end of the cone, results in subjecting a portion of the yarn to undue friction and abrasion which has a deleterious effect, especially with fine, delicate materials. To relieve this frictional abrasive action on the yarn it has been a practice to construct the drum with a slip-ring or loose sleeve adapted to turn independently of the driving end of the drum so as to accommodate its surface speed to the peripheral speed of the cone at the smaller end of the latter. With such an arrangement, however, a certain proportion of the drivingcontact is lost, that is to say, traction will be effected only at the larger end of the cone and when the yarn mass approaches its maximum diameter there is apt to be slippage at this end.

With the present improved construction of yarn-carrier having separately rotatable sectlons each'yarn-body or unit of the cone is driven independently of the other and the difference in their surface speeds is there- ,.fore compensated for. Stated briefly, the butt b is driven at one speed in accordance with the diameter of the yarn mass being wound thereon-and the other section c is driven at a diiferent speed in proportion to l the diameter of its body of yarn. Through this provision the ltwo yarn-bodies or units of thepackage are caused to make better contact with the surface of the drive-roll 2 without undue slippage and consequentabasive action on the yarn being Wound.

A's the winding proceeds the 'yarn builds lupin separate masses constituting the two funits or yarn-bodies Y, Y afs illustrated in -,Fig. 2. After the winding has eachedva predetermined diameter as req'ilired for a certainsvzve, ofcone, cop or package the copholder is displaced to remove the cop from driving contact with the drum V2, automatically-operated stopping mechanism on` the winding machine being usually employed fork this purpose. Atvthe completion of the winding operation the `cop,1co ne or package is removed vfrom its holder by withdrawing the cop-tube or yarn-carrier C from the spindle 4, the latch 8 being KAturned back into parallel relation with the spindle to release the carrier.

The multi-unit cop, cone or package is prepared for delivering its yarn in a continuous length in 'the manner as next explained. After the yarn-carrier C has been removed from the cop-holder or Winding-spindle its forward section c is withdrawn from the extension e on the butt I) to permit access to the end of the strand 3/ wound'around the groove p in the neck n. A suiicient length of this yarn is unwound from the neck and its end tied or spliced to the leading end from the yarn-body -or unit Y Wound on the butt b, the splice being indicated at :l: in Fig. 2. After the ends have been spliced orpieced up in this manner the carrier-section @c isv slid back into place on the extension e of new ished cops, cones or packages are taken from t'he winding machine to the location where they are to be, creeled to supply the yarn or thread to a warping machine or other apparatus used in the transfer process. Fig. 3 illustrates a section of a magazine creel which may be of the type described and illustrated in United States Letters Patent No. 1,660,299

issued February 21, 1928. This view shows the arrangement of two multi-unit or duplex .cones arranged on holders 30 which are supported on uprights or standards 31 forming part of the grid-like framework of the creel. IEach holder lcomprises an arm 32 which is swiveled on itsupright 31 to adapt it to be swung back into convenient position for doff- V in'g the empty yarn-carrier and creeling a fresh cone, and meansare provided for normally maintaining the holders 30 1n operative position. The two associated holders of each pair have spindles 'adapted fory insertion into the bores of the cone-carriers C; and provided withlatches 36 at theirvend's' for holding the packages in place. The axes of the spindles, are inclined toward each other" to .converge'at the yarn-receiving point ofafj tension-device 40, shown in planview Iin Fri'glf 3 as attached toga vertical rod 41. As heref illustrated, the tensin-device comprises ja frame or bracket l'42 clamp-ed 'tothe rod 41 'by means of a set-screw`43 and carrying .a pin or stud 44 on :which are vhelda pair' of tension-disks tai-The leadingend of 'the lstrand ofthread or yarn 'g/ is lcd lfrom the first cone of the pair through suitable guiding means 46, on ythe bracket .42,2passed between the tensionfdisks 45 and around the stud4 44, 'antided from the disks'` around a guide-hook 47'.` .Fromthe'tension-device the strand draws tothe warper or other machine to which` the multiple ends from the supply packages on the creel are to be delivered. As the yarn is drawn through the tension-device it unwinds from thefirst unitiY on one cone and when the material in this body of yarn is'eXhausted the end delivers next from the second unit ofthe first cone or package until this latter body of yarn is completely unwound. As the body of yarn on the butt b is completely unwound the strand finally uncoils from the groove g at the base end of the butt and then delivers from the first unit Y of the next associated cone which is shown at the right in Fig. 3. lVhile the yarn is delivering from the second supply the operator creeis` a fresh cone in place of the exhausted one and ties the leading end of the yarn from its first unit to the last endwgf'v wound in the groove g at the end of the carrier C of the delivering cone. This process is repeated with respect to all the pairs 'of associated cones or packages on the creel so that the delivery is maintained continuous without stopping the warping machine or other apparatus to recreel fresh supplies.

Itis to be observed that as the yarn unwinds from the multi-unit cone it is never required to draw across its surface for the full length of the package. That is to say, when the cone is full, or substantially so, and the yarn is unwinding at a relatively slow rate there will be less tendency for it to drag or catch on the surface of the cone because it does not have to draw across the whole length of the latter. This holds good with the strand unwinding from any one unit, and consequently a much free/r 'delivery is obtained with less chance/of straining or breaking the yarn due to resistance to its draft. As the yarn continues toy unwind and the diameter of the yarn-body is reduced the strand will unwrap at a faster rate and this causes it to balloon outwardly-so that it will not drag on the surface of the winding. Furthermore7 when the stra-nd, is' unwinding from the second yarnbody. or unit on the carrier there will be no :tendency for it to catch or drag across the forward section c of the carrier C because the 'periphery of the latter is in line or coincident with the periphery of the butt I). That is to say, even when the last coils are unwinding from the surface of the butt-section b there will be no tendency for the strand to catch en the rearward edge of the section c because the latter does not protrude beyond the "diameter of the smaller end of the butt. This feature is important as eliminating any chance for straining or breaking the yarn during the delivery of the last coils from the surface of the cone-tube or yarn-carrier C.

.lt will be observed from the foregoing that the present invention provides an improved method of winding yarn` thread and other textile materials on a friction drive or drum-driven winding machine without the deleterious rubbing or abrasive action on thc surface of the cone being wound.

The improved method of winding the cop, cone or package in separate units from a-plurality of strands traversed simultaneouslv reduces the time required for the winding operation and thus increases the productivej capacity of the winding machine.

The improved cop, cone or package, being composed of a plurality of units of relatively `short traverse, provides for freer delivery of the material therefrom without undue resistance or hindrance from the drag of the strand across the Isurface of the package in unwinding over its end. l `Y The improved form of sectional cop-tube or receiver for the package provides a convemcnt means for supporting the separate yarn masses or'units during the winding prooess and for thereafter disassembling the sections so that the first-wound ends of certain units may be tied to the leading ends of other adjacent units.

The improved cop, cone or package is adapted to be used in Inultiple on a magazine type of creel to provide for the continuous deliveryof a large number of ends to warping, beaming or other transfer processes without arresting the delivery for recreeling fresh supplies.

While I have herein described and shown the invention as applied to use in Winding a certain form of cop or package in the nature of a cone, it is to be understood that the size and shape of the package may be varied as desired and the steps in the process of winding it be changed tosome extent without departing from the spirit `or scope of the invention. Therefore, withoutv limiting myself in this respect, I claim:

. 1. An improved method of winding yarn, j

thread and other strand materials consisting in providing a cop-tube composed of a plurality of interconnected but independently rotatable coaxial sections; rotatably supporting said cop-tube with its several sections in peripheral contact with a rotating drive-roll or drum; winding a package on the tube by simultaneously traversing a plurality of strands of the material to build a separate wound mass or unit on each section of the cop-tube; displacing the sections of the coptube to recover the first-wound ends of theu strands; splicing the first-wound end of the strand of one unit to the last wound-end from the next unit; and reassembling the units in coaxial relationship to provide for the delivery of the material therefrom in a continuous length.

j 2. An improved method of winding a cone of yarn, thread or other strand material consisting in providing a conical cop-tube comprising a plurality of coaxial sections connected to adapt them to rotate independently of each other; rotatably supportingsaid coptube with its several sections in peripheral contact with a rotating drive-roll or drum; simultaneously traversing a plurality of strands to wind the material in separate masses surrounding the several sections of the cop-tube; displacing sections of the coptube to recover the first-wound ends of the strands; and connecting the first-wound end of the strand of one mass to the last-wound end of an adjacent mass to provide for continuous delivery of the material from all of the units of'the cone.

3. An improved package of strand material comprising a cop-tube composed of a plurality of coaxial sections, one section having a cylindrical extension projecting into the axial bore of the next section to adapt said sections to be assembled for independent rotation one in relation to another and for longitudinal displacement oneV with respect to another, the rearward end of one section having a reduced neck projecting axially therefrom and of less diameter than the adjacent end of the next rearward section `to receive a reserve length of the strand wound therearound, and separate unitary masses of the material wound in adjacent relationship on the several sections of the tube with the end of the reserve length of strand from one unit spliced to the leading end of the strand from the next adjacent unit to provide for continuous delivery of the material from all the several units.

4. A cop of strand material comprising a cop-tube constituted by a plurality of coaxial sections, one section having a peripheral surface for receiving the strand material and a reduced axially-projecting cylindrical extension, another tube ysection bored to receive the axial projection on the first section toadapt it to be rotatively mounted thereon and having its periphery proportioned to form a continuation of the peripheral surface of the first section, said second section-having a reduced neck projecting axially from its rearward end of less diameter-than the end of the first section to receive a reserve length of yarn wound therearound, and unitarymasses of the material wound on the peripheries of the several sections with the reserve length of the strand from one unit spliced to the leading end of the strand from the next adjacent unit.

5. A cop of strand material comprising a cop-tube constituted by a plurality of coaxial sections, one section having a tapering periphery and provided with an axially-arranged cylindrical extension, another section.

having a tapered periphery adapted to aline with the periphery of the first section and bored axially to receive the cylindrical extension thereof, whereby said sections may be assembled to permit relative rotation therebetween, said second section having a reduced neck projecting axially from its larger end and of less diameter than the adjacent end of the first section to receive a reserve length of yarn Wound therearound, and unitary masses of the material wound on the several sections with the reserve length of strand from one unit spliced to the leading end ofthe strand from the-next adjacent unit. i

signature.

In testimony whereof Ihereunto axmy

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