US2197736A - Method and device for use on winding machines - Google Patents

Description

.April 16, 1940. J. UYTENBOGAART 2,197,736

METHOD AND DEVICE FOR USE ON 'WINDING MACHINES Filed Jan. 25, 1937 lPatented Apr. 16, 1940 'UNITED STATES PATENT oFFicE METHOD ANDWDEVICE FOR USE N WIND- ING MACHINES Uytenbogaart, Berlin-Lichterfelde,

Application January 2.5, 1937, Serial No. 122,296 12 Claims. (Cl. 242-18) The present invention relates to the winding of thread, yarn, etc., but more specifically has for its purpose to provide an improved winding method and arrangement for use with winding machines. It will be described as applied to a winding machine in which the spool and yarn body wound thereon rest on a rotating cylinder and are driven thereby.

Inlthe winding of thread, yarn, etc., it is essential in many instances to wind the thread under an even tension throughout the winding operation. In order to accomplish this result it is necessary that the take-up speed of the thread be constant. As is well known/there are two u methods for obtaining a constant speed of takeup. One. method is to use a compensating gear arrangement whereby as the yarn body increases in diameter the speed of rotation of the winding spindle is reduced so'that the hperipheral speed of the yarn body remains constant. The second method makes use of the yarn body itself. The spool rests on a rotating cylinder and is driven thereby. By means of this latter method it is obvious that the peripheral speed of the yarn body 25, remains vconstant and that further the necessity of having an expensive -compensating gear arrangement is eliminated.

However, the use of yarn driven winding machines has certain disadvantages. In order to 80 feed the thread to the spool it has been the cus- -tom to pass the thread between the driving roller and spool and froml the traverse guide. Due to the reciprocative movement ofthe traverse guide the thread is continually dragged back-and forth 85 between the said driving roller and yarn body which naturally results in an excessive frictional wear and pull on'the thread. Heretofore in the art, however,so far as applicant is aware, no satisfactory method or apparatus has been provided to overcome the aforementioned disad-v vantage. Y

Further, the starting of thread on any winding machine is frequently'a problem. On yarn driven winding machines, if the thread is to be fed from '46 the traverse guide to the top of the spool in order to eliminate the drag on the thread from the driving roller it is important, ifnot essential,- that some thread feeding means be provided in order to start the thread on the spool at the be ginnng of the winding operation.

Another disadvantage in the use of winding machines which drive the yarn body'is that at the end of the winding operation when the thread is brokenv from the4 source of supply, the loose end is unretained and is frequently thrown to other parts of the winding machine, tangling therein and at times impairing the efficiency of these machines. It is also for the purpose of preventing such occurrences that-applicant has devised his novel thread carrying device.

It is therefore one object ofthe present invention to devise a method and means for facilitating the feeding of thread to a spool at the beginning of the Winding operation on winding machines.

Another object of the present invention is to 10 devisea thread starting method and means for use on yarn driven winding machines whereby the thread may be fed more expeditiously to the top of the winding spool.

Still another object of the present invention is 15 to devise a thread starting method and means for Winding machines which will break the loose end of the thread from the winding spool, thus eliminating the chance of the said loose end from wrapping around the winding spindle.

A still further object of the present invention is to'devise a method and apparatus for winding of yarn, laments, threads, etc., wherebythe loose end of the thread at the end of the winding operation is taken up.

These and other objects of the present invention will in part become obvious and will in part be pointed out in the following specification andv appended claims when taken in conjunction with the attached drawing, in which, .$0

Fig. 1 is a front elevation, part being shown in section, of a winding spool equipped withmy device and a portion of a winding machine to illustrate the use thereof;

Fig. 2 is an end elevation of the parts shown 85 in Fig. 1, and

Fig. 3 is a cross-sectional view taken on the line 3*-3 of Fig. 1.

In the drawing, in which like numerals of reference indicate likeparts, l and 2 indicate the 40 bearing brackets of av winding machine (not shown). l

I'he brackets l and 2 have grooves 3 and l'into which the ends of the spool spindle 5 extend and ride therein as the yarn body 6 increases in diameter.

The yarn body 6 is wound on a spool body 1. The spool body or cylinder 1 may be mounted onl a' spool holder 8 such as is illustrated in the drawing. The. spool holder 8 rotates around the 50 spindle 5. The spindle 5 has flattened ends 5a which ride in the grooves 3 and 4, the saidendsv 5a preventing rotation of the shaft 5 while allowing the shaft to slide in the grooves as the yarn body increases in diameter. The spindle or shaft 5 has mounted thereon a spacer sleeve I8 at either end of which are mounted ball bearing races I9 and 20. Ball bearings 2I rotate in the said races I9 and 20 and the spool holder 8 through the medium of bearing rings 22 and 23, rotates around the bearings 2|. The spool holder 8 -hasend flanges 9 and I0 which support the spool 'I in centered position on the spool spindle 5.

The ange 9 is slidably mounted on the spool' holder 8 andspring-held against the spool 'I by a spring II.

The holder 8'and flange 9 are removable as a unit in order to remove the spool I from the spool holder.

'I'he above structure has been described in greater detail in copending application Serial No. 122,297, led January 25, 1937 entitled Spindle support for spools.

Mounted on the spool holder 8 and rotatable therewith is a disc I 2 which has notches I3 cut in the periphery thereof for a purpose to'be ex-v plained later.

The spool 'I carried on the spool holder 8 rests on a driving cylinder I4 and is rotated thereby.

A traverse bar I5 and guide I6 for imparting the desired cross-wind to the yarn body is shown in sectionl in Figure 2 of the drawing. It is of-A tion which frequently results indamaged thread and yarn bodies. v

It has been found that the excessive drag of the thread caused bythe movement ofl the traverse guide may be overcome by feeding the thread to the top of the yarn body or spool. In order to start the thread feed a notched disc I2 has been provided which rotates therewith. The operator by taking the loose` end-lof' the. thread in one hand and with' the othery hand placing a portion of the thread at the center of4 the spool body 1 runs the thread down' onto the rounded peripheral edge of the disc I2, whereby it iscaught in one ofthe notches I3, the edges of .which are also rounded to prevent unintentional tearing. of the thread, and'carried around therewith thus wrapping the thread around theF spool 'I and starting the winding operation. 'It

will be appreciated from a consideration of Figs.

1 and 2 that the thread is supplied from below 'the traverse bar I5 and traverse guide I 6, and,

therefore, below the spool 1. -With the arrangement of Fig. 1, the operator will ordinarily have the loosev end of the thread in his left hand and the bend or loop, formed by the adjacent portion of the thread and the supply coming up and over the bar I5, in his right hand for introduction to the top side of the rotatable spool. 1. The loose end of .the thread between the operators hands and near his left hand will be run onto the edge of disc I2. As shown in Figs. 2 and 3 o f the drawing, the notches I3 are nearly circular in shape, being set in from the edge of the disc 'I2 and provided with restricted openings which are narrower than the bottom of the notches. While the loose end of a thread can easily slip into one of these notches over the rounded corners, the

restricted opening will tend to retain it therein.4 By holding the loose end ofthe thread tightly the excess end may be broken .olf and easily disposed of and thereby eliminating wrappings around the spindle ends.

A guard rail I1 may be mounted on the bearing bracket -I adjacent the disc I 2v transverse to the winding means.` The purpose of this guard rail is twofold, it acts as a guard to protect the moving the filled spool, it is drawn across theA edge of the disc I2 and allowed to catch in one of tthe notches I3 in order towrap'it around the end of the spool holder. The thread may be [broken by holding it as the disc rotates., This `arrangement eliminates any ,possibility of the loose end being carried to other parts of the machine and causing operating troubles because of tangling thereof in working parts.

The advantages of the invention are thus clearly apparent.' By using this device on yordi-r nary winding machines thenstarting feed ofthe thread is facilitated. By .using thev invention on yarn driven windingmachines it will bel found ro longer necessary to4 introduce the thread between driving roller and yarn body thus result- .ing in an improved yarnl body and eliminating excessive friction, so.' .to :the thread quality. V f i Y vIt is apparent that other means'may be mounted on the d isc I2 for .carrying the thread.-

While I have described my method jand apparatus particularly as it relates to use with yarn driven winding machines it will be readily appar'- fent ythat it may be used'to great. advantage on other types of winding-machines. Examples of such other types are spindle drivenor bead driven spools or bobbins. It may also be'used to adnection with y the accompanying, drawingv it is thought the 4complete construction, operation and advantages of myj vention will be 'clear to those sinned in the art tdwhich it relates.. What I claim is:

1'. In winding machines' for thread, yarn, etc.,` means to collect thread, and a disc. means operative with said collecting means to facilitate the feed of the thread at'the beginning of the winding operation, said disc hal/,ing a notch with a re strictedopening and rounded edges.

2. In winding machines for thread, yarn,'etc'.,

a spool adapted for use thereon, and a disc mounted on said spool constructed and, arranged to facilitate the feed of thread thereon at thebeginning ofthe windingope-ration, said disc-having a notch witharestvricted opening and round- Y ed edges. 3.In winding machines lforthread, yarn, etc.,

ja spool adapted for use thereon, and 'a disc.

mounted on said spool constructed and arranged beginning of jthe'winding operation, said disc being of a diameter greater than the diameterof. A the spool, said disc being provided with a notch having a restricted opening and rounded edges;v

4. In winding machines for thread, yarn, etc.,

a Winding element, and a notched disc mounted for rotation therewith and adaptedv to facilitate* A to facilitate the feed ofthre'ad thereon-at the v 5. A winding spool for use on thread winding machines. and means mounted at one end thereof adapted to facilitate the feed of the thread at the beginning of the winding operation, said means having a notch therein which is wider at its bottom than at its opening and is provided with rounded edges.

6. In winding machines for thread, yarn, etc., a rotatable winding means, and a disc mounted thereon and rotatable therewith and of a diameter greater than the diameter of the winding means, said disc having a plurality of peripheral notches with restricted mouths adapted to facilitate the feed of thread at the beginning of the winding operation and rounded edges.

7. In winding machines for thread, yarn, etc., a rotatable winding means, a member mounted for rotation with said winding means, said member having means thereon to pick up a thread, and a fixed guide for guiding the thread onto the said member.

8. In winding machines for thread, yarn,v etc., a rotatable 4winding means, a member mounted for rotation with said winding means, said member having abutments thereon adapted to pick up a thread, and a xed guide extending trans' versely with respect to the winding means for guiding the thread onto the said member.

9. In'winding machines for thread, yarn, etc., a frame, a rotatable winding means, a notched disc mounted thereon and rotatable therewith adapted to facilitate the feed of thread at the beginning of the winding operation, and means xedly mounted on the frame of said winding machine and adjacent said disc to guide threa onto the periphery of the said disc.

10. In the winding of threads the steps comprising, positioning a bend of thread opposite a rotating spool on which it is to be wound while causing the adjacent loose end of said'thread to rotate with an end of the spool until the thread has been carried around the spool, and severing a portion of said loose end by restraining its movement with respect to the rotating end of said spool. 11. Inthe .winding of threadsthe steps comprising, positioning a bend of thread at the beginning of the Windingoperation opposite a rotating spool on which it is to be wound, ,con-

- currently causing a loose end of theV said thread to rotate with an end of the spool until the thread has been carried around the spool, severing a portion of said loose end, Winding the thread to.

form a yarn body on said spool, and'severing the thread from .the yarn body. A

12. In the winding of threads the steps comiprising, rotating a spool by a rotor contacting with the surface on which the thread is to be. wound,` positioning a bend of thread opposite the spool intermediate its ends while causing the adjacent loose end of said thread to rotate with an end of4 said spool so as to feed thread to be wound in a direction opposed to the direction of travel of the surface of the rotor contacting the surface on which the thread is to be wound, and severingfa portion of said loose end by restraining its movement with respect to the rotating end of said spool.

JOHANNES

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