US2385949A - Winding machine for producing tubular cops - Google Patents

Description

Oct. 2, 1945. w. SIEGENTHALER 7 2,385,949

WIIiDING MACHINE FOR PRODUCING TUBULAR COPS Filed Aug. 51, 1944 3 Sheets-Sheet 1 Her/' 4 Oct. 2, 1945 w. SIEGENTHALER 1 2,385,949

WINDING MACHINE FOR PRODUCING TUBULAR COPS I Filed Aug. :51, 1944 a Sheets-Sheet 2 4 a FIG] Oct. 2, 1945. w. SIEGENTHALER 2,385,949

, WINDING MACHINE FOR PRODUCING TUBULAR COPS I Filed Aug.- 31, 1944 3 Sheets-Sheet 5 Patented Oct. 2, 1945 WINDING MACHINE FOR PRODUCING TUBULAR COPS Walfir Siegentlialer, Erlcnbach, near Zurich,

tlerland.

assimor to Maschlneniabrik Sshlrer, Erlenbach, Zurich, Switserland Application August 31. 1944, Serial No. 552,059 In Switzerland August 31, 1943 (Cl. 242-44) I 9 Claim.

This invention relates to winding machines for producing tubular cops.

In the winding machine for producing tubular cops according to the invention a revoluble member carrying a, plurality oi winding spindles moves, in accordance with rotary feed steps, one winding spindle after theother'within the range of a stationary press piece in such manner that by action of said piece the tubular cop in progress of formation is advanced on the winding spindle commensurate with its increase in length and at the same time a counter holder accommodating he front cop end is displaced, said counter holder bein in the form of a thread catch for the purpose of catching the end of the thread oi a finished tubular cop automatically leaving the working position and passing said thread to the winding spindle arriving at the working position.

By this means the production of tubular cops in automatic continuous succession by the machine is made possible in relatively simple manner.

An embodiment of the automatic cop winding machine according to the'present invention is illustrated, by way of example only, in the accompanying drawings in which Fig. 1 shows a longitudinal elevation of the cop winding machine according to this invention;

Fig. 2 is a corresponding top plan view;

Figs. 3 and 4 represent two front elevations with the parts of the machine in two different working positions;

Figs. 5 and 6 are larger scale illustrations serving for explaining the passing over oi the winding thread from the finished tubular cop to the winding spindle next to be wound; I

Fig. 7 shows a longitudinal rear elevation-of the machine relative to Fig. 1;

Figs. 8 and 9 depict difierent operating conditions of the machine compared with Fig. 7;

Fig. 10 is a top plan view of Fig. 9;

Fig. 11 depicts a different working condition of the machine compared with Fig. 10;

Fig. 12 is a detail view showing a particular construction of the counter holder in an axial section with the tubular cop completely wound, and

Figs. 13 and 14 illustrate the manner in-whlch the thread is passed over from the completely wound tubular cop to an empty winding spindle.

The gear box I has arranged in front of its front end a circular revoluble member 2 by means oi a central shaft 3. The revoluble member 2 is provided with three holders 4 which are uniformly distributed over the circumference of said member and each of which serves for receiving a winding spindle 5. The three winding spindles Ii provided are successively moved into the working, that is, the winding position of the machine due to corresponding feed steps performed by the revoluble member 2.

On a spindle protruding through the shaft 3 a support 8 is arranged (Fig. 2) on which a press roller l is rotatably mounted. The parts 8 and l are further visible only in Figs. 3 and 4. By action of the press roller l the tubular cop A in progress of formation is advanced commensurate with the feed of thread material applied to the point of the cop and the resulting increase in length 01 the thread winding on the respective windin spindle 5,. The winding thread passes through the thread guide 8 which reciprocates at a constant traverse. The numeral 9 refers to an auxiliary thread guide which is mounted on a stationary support and is rendered operative only as the thread passes over from a finished tubular 'cop to the next winding spindle 5 taken into use.

The winding spindle I situated at the winding position is in opposite relationto the counter holder Ii which receives the front end oi the cop and is provided with several'front fingers ii, as shown in Figs. 5 and 6 exclusively, which serve for temporarily guiding the winding thread. The counter holder II is supported by a slide i2 (Fig. 1) which is mounted on a carrier rod II and is connected with a flexible tension member it which passes over a guide roller I! which is arranged on the gear box i and is loaded by a weight It. By two superposed carrier bars, l1, l8

a slide I 9 is guided which is engaged by a sectional reclprocatory rod 20. The reciprocatory rod 20 which is composed of several telescopically connected parts and an intervening helical spring ii is connected at its second end with a crank 22 the associated shaft 23 of which is mounted on the gear box I.

0n the shaft 23 a gear 24 is fastened which meshes in a gear I! the mounting shaft 28 of which protrudes through the gear box I and car- .ries at its other end a cam disc 21 which displaces by means of a cooperative roller 28 a rod 29 the free end of which is provided with a funnel having a halvedshell as hereinafter termed a semi-cone iunnel 30. The rod 29 is partly inserted in a guide secured to the gear box i and is maintained in'bearing engagement with the cam disc 21 through the intermediary of the roller 28 by action of a helical spring not shown. At the rear end i'a'ce oi the gear box I the driving pulley I! of the machine is arranged.

The winding spindle having been moved into Y the working position by the revoluble member 2 is operatively connected with a driving shaft 33 mounted on the gear box 'I (Fig. 2). After the tubular cop A has reached the prescribed length a clutch arranged in the gear box I is automatically connectedin consequenceof which the crank 22 performs one revolution, whereupon the crank is set at rest again. Due to theperformance of said revolution'by the crank 22 the slide I9 carries out a. full reciproc'atingmovement. In the course of the advance stroke'of the slide IS the latter displaces the slide I2 against the action of the weight I5, thereby to retract the counter holder II so that the counter holder releases the completely wound tubularcop A which, however, still remains for a while on the winding spindle concerned.

.Thereupon, the revoluble member 2 has automatically imparted thereto a rotary feed impulse in the direction of the arrow shown in Fig. 3 due to which thi member conveys an empty winding spindle 5 into the working position-where this spindle is coupled with the driving shaft 33. In-

cidental thereto the winding. spindle 5 carrying "the completely wound tubular cop is removed from the working position of the machine to the semi-cone funnel on having been uncoupled from the driving shaft 33 as shown in- Fig. 4.

In the course of the rotational feed movement of the revoluble member 2the return movement of the slide l9 into inoperative position is initiated. In returning into'inoperative position the slide l9 takes the counter holder II along with it, in consequence whereof the counter holder is moved into that position relative to the winding spindle 5, having been moved into the working position as shown inFigs. 5 and 6, in which the counter holder is rotated by the winding spindle 5 for conjoint movement.

In the course of the return movement of the slide I9 this slide hits the auxiliary thread guide 9 which is thus pivotally displaced against the action of a torsion spring cooperating with said I thread guide from a position of rest as shown in Fig. 10 into the position shown in Fig. 11 so that the winding thread is moved within the embrace of the counter holder II as evident from Figs. 5 and 6. The winding thread is then grasped by a finger II on the counter holder II and wound on the respective winding spindle 5 in the required manner by means of the thread guide 8 and thepress roller-l. The tubular cop B thus formed on this spindle 5 contacts with the counter holder I I after having reached a certain length, thereby to urge said holder backwardly so that the winding thread slides off of the said finger II and is then no longer guided on the counter holder ll.

After a further tubular cop B has been wound the reciprocating movement of the slide I9 and the rotary feed movement of the revoluble mem-. her 2 as well as the working operations occurring in conjunction therewith are repeated. As in connection therewith the cam disc '21 mounted on the shaft 23 associated with the crank 22 alcop B is conveyed toward the semi-.frusto -conical shell or funnel and so forth. Obviously care is taken that the winding thread still extending between a completely wound tubular cop and the tubular cop next to be wound is severed at a point of the intervening length of said thread, for example, by means of a pair of scissors or in some other manner. I

From the foregoing it follows that the mach ne according to this invention produces one tubular cop after the other altogether automatically by continual operation.

The counter holder shown in Figs. 12 to lipossesses a holding socket which functions to receive the cop in course of formation for which purpose the respective end of the bore of the holdingsocket is conically widened. At its other end the holding socket 35 is mounted in a sleeve 31 for smooth rotary movement by means of a ball bearing 35 which sleeve is firmly fastened to the cylindrical counter holder body II. The rear end of the holder body II is mounted by means of a bottom 38 on a central stud 39 which is rotatably mounted in a holding device 40 whichis fixed to the gear box of the machine by means of a supporting rodwork. On the rear end portion of the holder body II an outer round disc 4| is secured whereby a mass of an accordingly great inertia is formed compared with which the inertia of the mass of the holding socket 35 is substantially smaller. The front end of the holding socket 35 projects beyond the front end of the holder body II a certain distance. The conically tapering front end of the holder 35 constitutes a thread guide in a manner not shown. In connection therewith on the above said tapering end of the holder body II, for example, spring fingers or spindle in the required manner.

hand the thread is torn at a length thereof exways also performs one revolution at the same time, by means of the rod 29 the semi-frustoconical shell or funnel 311 is accordingly pushed back and forth for the purpose of pushing the drops into a receptacle not shown.

Asthe revoluble member 2 performs its next rotary feed step the completely. wound tubular notches may be provided.

Fig. 14 serves for illustratively explaining the beginning of the winding operation. As will be seen the thread being indicated in chain-dotted lines is so laterally diverted from its course by the auxiliary thread guide 9 as to be situated within the range of the front end of the holder body II and the holding socket 35 into which the winding spindle 5 extends. The thread thus reaches the winding spindle 5 via the end of the supporting socket 35 projecting beyond the holder body I I and is, after having been grasped, that is, caught by the rotating holder, wound about the empty winding spindle 5. Due to leading of the holding sccket 35 on the holder body I l the thread is tautened between the catching point on the holder body II and the supporting socket 35, in consequence whereof the thread is torn at the tautened length after some windings have been placed on the winding spindle 5.

By this means thread material has been placed on the winding spindle in such an amount that as the automatical mechanical driving of the winding spindle 5 begins the thread is wound on the tending from the finished tubular cop to the holder due to the holder rotating. Thereupon, the thread winding, that is, the tubular cop in progress of formation on the winding spindle enters into cooperation with the conical portion of the bore of the supporting socket 35.

On the formation of the respective conical end of the spool and the beginning of the cylindrical spool portion the tubular cop in progress of formation, the second end of which cooperates with a press roller not shown, forces after a certain length has been reached the counter holder back- On the other wardly, as will be seen in Fig. 12'. As soon as the thread winding correspondingly engages with the supporting. socket 35 said socket isturned alon with the thread winding, whereby a turning moment is also set up in the holder body ll inclusive of the round disc 4i. a

The supporting socket 35 then runs at the same speed of revolution as the winding spindle 5 and the rotational speed of the block formed by the parts Ii and H increases up to a maximum which dependent upon circumstances may be more or less in the order of the rotational speed of the supporting socket 35. By virtue of the bearing 36 being inserted between the supporting socket 35 and the holder body II as well as the inerta of the relatively great mass formed by the: parts II and I, the block il, 4| begins to rotate only by and by, when the machine is started, and lags behind the rotational movement of the supporting socket 35 of considerably lesser weight at least at the beginning,. so that the supporting socket 35 then leads on said parts.

This condition of movements is maintained also during the exchanging of winding spindles at the working position of the machine for the reason that on discontinuation of the contacting engagement between the tubular cop and the supporting socket 35 the drive of this socket is interrupted,

- whereupon the speed of revolution of the support-- ing socket 35 as wellas that of the block H, II decreases, whereas due to effect of inertia the supporting socket 35 as well as the block ii, 4| keep on rotating in order to automatically initiate the winding of an empty winding spndle again.

In consequence of the counter holder returning in automatic fashion this holder'approaches on the next empty winding spindle having arrived in working position as shown in Fig. 13 and enga es said spindle as shown in Fig. 14. 'Ihereupon. the thread is guided by means of-the auxiliary thread guide 9 within the range of the front end of the holder body ii providing a thread catch, and then the working incidences described follow each other again, that is, are repeated. Therefore, the thread is wound anew on the empty winding spindle and is tautened between the spindle and the holder body Ii providing a thread catch and eventually torn at the tautened portion or in certain circumstances pulled out of the holder body I. v In proceeding in themanner described the result can be obtained that at the beginning as well as at the end of the winding of the tubular cop a relatively only short piece of thread, is left loose, that is, to project, the presence of which facilitates the working with the tubular c'op in the loom, that is, the orderly placing of the weft thread in the shuttle, when the cop is put into such a use. v

The counter holdef'constructed in the manner hereinbefore described can be applied also to tubular cop winding machines operating by means of winding spindles extending allthe way through the winding. Further it isnot indispensable that the winding spindles being exchanged at the working position are arranged on a rotatively feedable carrier member.

Iclaim:

1. In a winding machine for producing tubular cops, a working position for winding tubular cops in said machine. a feedable member carrying several winding spindles revolubly arranged for intermittently conveying said winding spindles stationarily arranged for advancing the tubular cop winding being wound at said working position commensurate with its growth on the respective winding spindle, a counter holder displaceably arranged in opposition to said working position for bearing against the front end of said tubular cop winding, and a thread catch provided on said counter holder for catching the thread extending to the completely wound tubular cop as said cop automatically discharges from said working position, and passing -over said thread to the winding spindle next arriving at said working position.

2. In a winding machine for producing tubular cops, a working position for winding tubular cops in said machine, a feedable member carrying several winding spindles revolubly arranged for intermittently conveying said winding spindles individually to said working position on being correspondingly rotatively fed, a press member stationarily arranged for advancing the tubular cop winding being wound at said working position commensurate with its growth on the respective winding spindle, a reciprocable counter holder displaceably arranged in opposition to said working position for bearing against the front end of said tubular cop winding, a thread c tchin fi r provided on said counter holder, and an auxiliary thread guid arranged for being automatically pivotally displaced as said counter holder returns into initial position for moving the thread extending to the completely wound tubular cop within the range of said thread catching finger for said finger to catch said thread as said cop automatically discharges from said working position and to the winding spindle next arriving at said working position.

3. vIn a winding machine for producing tubular cops, a working position for winding tubular cops in said machine, a feedable member carrying several winding spindles revolubly arranged for intermittently conveying said winding spindles individually to said working position on being correspondingly rotatively fed, a press member stationarily arranged for advancing the tubular cop winding being-wound at said working position commensurate with its growth on the respective winding spindle, a reciprocable counter holder displaceably arranged in opposition to said working position for bearing against the front end of said tubular cop winding, a slide biassed v toward initial position pushing said counter individually to said working position on being holder out of engagement with the completely wound tubular cop and subsequently returning into said initial position, a thread catching finger provided on said counter holder, and an auxiliary thread guide arranged for being automatically pivotally displaced as said counter holder returns into initial position for moving the thread extending to the completelywound tubular cop within the range of said thread catching finger for said finger to catch said thread as said cop automatically discharges from said working position and to pass over said thread to the winding spindle next arriving at said working position.

4. In a winding machine for producing tubular cops, a working position for winding tubular cops in said machine, a feedable member carrying ev. eral winding spindles revolubly arranged for intermittently conveying said winding spindles individualiy to said working position on being correspondingly rotatively fed, a press member stationarily arranged foradvancing the tubular cop winding bein ound at said working position to pass over said thread c ps,

commensurate with its growth on the respective winding spindle, a counter holder displaceably arranged in opposition to'said working position for hearing against the front end of said tubular cop winding, a thread catch provided on said counter holder ,for catching the thread extending to the completely wound tubular cop as said cop automatically discharges from said working position, and passing over said thread to the winding spindle next arriving at said working position, and a semi-frusto-conical shell arranged for coassume dividually to-sald working position on being cor respondingly rotatively fed, a press member sta tionarily arranged for advancing the tubular cop operation with said revoluble member for receivwinding spindle, acounter'. holder displaceably arranged in opposition to said working position, a supporting socket included in said counter holder for bearing against the front end of said cop winding, and a rotatable holder body rotatably carrying .said supporting socket, said body providing a thread catch, and said supporting socket projecting beyond said holder body in the direction toward said working position.

6. In a winding machine for producing tubular cops, a working position for winding tubular cops in said machine, a feedable member carrying several winding spindles revolubly arranged for intermittently conveying said winding spindles individually to said working position on being correspondingly rotatively fed, a press member stationarily arranged for advancing the tubular cop winding being wound at said workin position commensurate with its growth on the respective winding spindle, a counter holder displaceably arranged in opposition to said working position, a supporting socket included in said counter holder for bearing against the front end of said cop winding, a rotatable holder body rotatably carrying said supporting socket, said body providing a thread catch, and said supporting socket projecteral winding spindles revolubly. arranged for intermittently conveying said windin spindles inr in beyond said holderbody in the direction toward said working position, and antifrict on bearing means interposed between said holder body and said supporting socket. 1

'1. In a winding machine for producing tubular cops, a working position for winding tubular cops in said machine, a feedable member carrying several winding spindles revolubly arranged for intermittently conveying said winding spindles inwinding being wound'at said working position commensurate with its growth on the respective winding spindle, a counter holder displaceably arranged in opposition to said workingposition, a supporting socket included in said counter holder for bearingagainst the front end of' said cop winding, a rotatable holder body rotatably carrying said supportin socket, said body providing a thread catch, and said supporting socket proiecting beyond said holder body in the direction toward said working position, a sleeve inserted in saidholder body, and antifriction bearing means interposed between said sleeve and said supporting socket.

8. In a winding machine for producing tubular cops, a working position for winding tubular cops in said machine, a i'eedable member carrying sevdividually to said working position on being correspondingly rotatively fed, .a press member stationarily arranged for advancing the tubular cop winding being wound at said working position commensurate with its growth on the respective winding spindle, a counter holder displaceably arranged in opposition to said working position, a supporting socket included in said counter holder for bearingagainst the front end of said copwinding, acylindrical rotatable holder body ro tatably carrying said supporting socket and having a rear end wall, a stud on which said end wall is centrally mounted, said body having a thread catch, and said supporting socket projecting beyond said holder body in the direction toward said working position. I

9. In a winding machine for producing tubular cops, a working position for winding tubular cops in said machine, a feedable member carrying several winding spindlesv revolubly arranged for in:-' termittently conveyingsaid winding spindles individually to said working position on being correspondingly rotatively fed, a press member stationarily arranged for advancing the tubular cop winding being wound at said working position 4 commensurate with its growth on the respective winding spindle,'a counter holder displaceably arranged in opposition to said working position, a supporting socket includedin said' counter holder for bearing against the front end of said cop winding, a cylindrical rotatable holder body rotatably carrying said supporting socket and having a rear end wallbeing mounted on a central stud, a sleeve inserted in said holder body,

and antifriction bearing means interposed between said sleeve and, said supporting socket.

WALTER SIEGENTHALER.

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