US2209207A - Winding of cops - Google Patents

Description

WINDING 0F COPS Filed March 25, 1937 3 Sheets-Sheet l July 23, 1940.

W. REINERS ETI' AL WINDING OF COPS Filed March 25, 1957 ssheets-sheet 2 w. REINERS ET AL wINDING oF coPs July 23, 1940.

Filed March 25, 1937 3 Sheets-Sheet 3 if IZ 33 --w Patentedvluly ..1940

WINDING yor 4cors Wilhelm Reiners, Gladbach-Rheydt, Gustav Kahlisch, Rheydt, Germany, assignors tovW.

Schlafhorst & Co., Munchen-Gladbach, many, -a corporation of Germany Application March 25, 1937, Serial No. 132,944

In Germany April 7, 1936 6 Claims.

The invention relates to a cop winding machine of the .type in which all the spindles, or a whole group of spindles of a machine, are driven in unison, but the progress of the Winding at each spindle is controlled quite independently of the others. The present invention is an improvement upon thecop winding machines shown in our copending application Serial No. 65,484, illed February 24, 1936, and upon the machines shown in Figs. 8 and 19-21 of our copending application Serial No. 71,266, filed March 27, 1936.

In the said copendig applications the thread is required to follow the builder mechanism at all timesfand cannot be returned to the bottom of the cop', which is the end first wound, when the building of the cop is completed, without the builder mechanism. According to our present invention the thread itself can be returned to the bottom of the cop when the build-up of the cop is completed, either with or without the thread guide.

By this means it is, for example, possible to use a feed feeler device which engages the chase of the package in such a way that local friction in the outermost position is avoidedfand the compactness of the yarn is increased by the at contact of the control member. In' addition there is the advantage of considerable smp1ica. tion of construction. In the embodiment shown in the said copending applications a feeler wheel is used, which cannot be released from the thread guide. its original .position by means of the thread guide, the feed feeler member must be swung out of operative position so that it can be moved past the cop at the side thereof without touching the package. According to our present invention, however, any desired feed feeler member (feeler wheel, the known hollow cone or feeler cone or the like) may remain in operative position, even when the yarn, with or without the thread guide co-operatin'g with the feeler member .is returned to its original position. Embodiments of the invention are shown by way of example in the accompanying drawings, in which:

Fig. l is a side view showing one form of construction, partly in section; y f

' Flg.2 is a partial side view thereof, 'after a .cop has been released, partly in section; Fig. 3 is a partial iront view; I

lilg. v4 is asideA elevation, partlyin section, of another embodiment. L 1 'I'he machine may have any desirednumberof spindles 4 driven from a main drive shaft I. 'I'he To enable the thread to be returned to l pawl 502 pivoted at 50| on a bracket 50|;

drive for each spindle is taken 0E through bevel gears 2, 3, a clutch |24, |25, and a slide coupling 4a in which the spindle 4 is non-rotatably guided.

A thread supporting device in the form'of a coptube I3 is held to spindle 4 by a tail stock com- 5 prising a socket 6 journalled in a bearing which is slidably mounted in a bearing '8, under the v i influence of a compression spring 1a. 'Ihe bearhas a rouer saab held against acam :n3 by a 15 spring 308e. The cam is xed upon a-shat 302 lwhich is driven by a worm wheel 30| meshingY with a worm 300 on slide coupling 4a. The clutch half |25 is pressed to the clutch half |24 by a spring 508 and can be retracted by 20 a lever 501 operated by either of two rods 505, 505. The rod 506 is urged to the left by a spring 504 and bears a lug 503 .engaged by a bell crank 'I'he vertical arm 499 ofthe pawl is engaged by a rod 25 498 sliding in a bearingI 491 and adapted to be operated by a. cam 496 of a thread guide 29 pivoted at 28 on a bracket 495. When the thread guide is pulled to the right by the thread, which is indicated by a dot and dash line,'the rod 505 30 can be pulled to the right by .handle 494 'to engage the lug `503 with pawl 502, thusreleasing the clutchvhalf |25 tothe action of spring 508. When the thread breaks, the thread guide 29 falls to the left and cam 496 thrusts rod 498 against 35 pawl 499, SOL-releasing rod 506 to the action of spring 504, which predominates over spring 508 and disengages the clutch. The rod 505 is operated to release the clutch by a lug 493 on bearing 5, when the spindle unit is moved to the left 40 beyond its normal traverse movement at the completion of a cop, in a manner to be described presently. l y

. The machine is designed to dotrthe completed cops and to don the'empty tubes and beginthe 45 winding oi the'new cop automatically. These automatic-operations are governedfor eachspin-f `dle independently byfaseparate group Iof cams (Figs. Iland 2) 339e, ",565, and 33Ic. These one revolutionto a gear =425 driven by a. gear423 ona shaft-422,1which may derive its pqwerfrfmj,

means not shown. The

the main'drive shaft l by one revolution clutch for coupling the cam unit to the gear 425 may be of the construction shown in Figs. 22-26a of our copending application Serial No.' 71,266. In the present drawings we have only indicated a bell crank lever 4|9, 420 pivoted on a shaft 339e on bracket 43|. The bell crank lever corresponds to the lever of the .same number in the saidvcopending application Serial No. '71,266"and is adapted to allow the clutch to become engaged when rocked in clockwise direction and to disengage the clutch when rocked back into the position shown in Fig. 1.

'I'he completed cop is doffed by retracting socketV 6 lfrom spindle 4, by mechanism now to be described. On a shaft Ib of bearing I is a transverse pin 90 engaged by the forked end of a lever 34| pivoted at 34Ia on rod 9. The outer end 340 of rod 9 is engaged by the `end of a lever 339, 3391) pivoted on shaft 339a'. Thelower ann 3391) is actuated by cam 339e to move the rod 9 to the left beyond its limit of leftward move- -ment causedv by the traverse mechanism. In this movement a'pin 34|b on lever 34| strikes a stop provided at their upper ends with pivotedrests 3|3a (Fig. 3) normally held in the position shown inFig. 3 against a pin 3|3b by a spring 3|3c. The' .bottom tube I3 in the ymagazine lies lin these rests and uponrmovement of the carriers 3|3 to the left in Fig. 3 is conveyed to a position coaxial with the spindle 4 and socket `6, the surface 3|3d of the carriers 3|3 meanwhile holding up the other tubes in the magazine. The swinging of the carrier arms 3|3 is controlled by a lever 563 engaging cam 566 (Fig. 2). 'Ihe swingto the left of the carrier arms 3|3 occurs just after the release of the completed cop and before the return of the rod 9 to the right, while thesocket 6 is held retracted' by the lever- 34|, as shown in Fig. 2. The

' carrier is held under the spindle until after the .in the frame of 'the machine.

new tube has been engaged by the socket 6 and spindle 4 bynthe return-of rod 9 to the right. I'hereupon the carrier arms 3| 3 are swung back, the rests 3|3a pivoting to release the donned cop tube and, upon return of the carrier arms to the position shown in Fig. 3, receiving the next cop tube from the magazine.

A thread guide I4 is mounted upon a carrier I5, which is slidable upon a rod I 6a xedly mounted The carrier I is also stabilized by a second rod 332 likewise xed in the -frame of the machine. The builder mechanism comprises a cone 330 adapted to bear against the nose of the cop and supported upon a holder 33|., The holder is slidably mounted upon shaft 33 2 and stabilized by Ashaft |6a. The holder 33| is provided with a sleeve 333 forminga chamf surface of sleeve 333.

ber which contains clutch balls 334. The clutch bans-are heldin a bushing 33s which is pressed to the carrier I5 engaging a pin 343 of holder 33| In accordance-with theinventlon means are provided for disconnecting the thread guide from the builder cone and returning it to the bottom of r the cop independently. For this purpose a lever 44 is pivotally mounted upon a bracket 45 and is cam unit begins to revolve the link 42 is released by cam 4| and lever 44 is swung tothe left by spring 44a. It first encounters a flange 342a of catch 342 and raises the catclnfrom pin 343. Im'

mediately thereafter it engages a pin 49 of carrier I5 and swings the carrier to the position shown in .Fig. 2, thus bringingv the thread against iiange 4b of the spindle in position to be clamped by the butt of the new tube I3. The thread trailing from the completed cop is also brought by,l this movement between the jaws of a pair of shears I0, which are actuated by carrier arms 3|3 to cut off the thread as the new tube is brought into position. Meanwhile, the builder cone 330 remains in the position it had reached when the winding of the cop was completed., lAs shown in Fig. 2, in this position the builder cone leaves a clearA path forthe new tube to be moved over to* l the spindle and is ready to be pushed over the new tube by a mechanism now to be described. A' lever 331 is pivoted on bracket 45 and is normally urged to the left by spring 331e. A pitman 336 connected to lever 331 has a hook-shaped end 336a by which it is guided in a Agroove of the cam unit, this end being provided with a pin 336| riding upon a cam 336e. 'I'he end ofl lever 331 reaches up to engage bushing 338 when the lever swings to the left, which it does near the close of the donning operation, when cam 336e releases it to the action of spring 33'Ia`. The lever 331 thereupon releases clutch balls 334 and slides the builder cone holder 33| to the left, untilthe latter comes up against thread guide carrier I5. As the holder 33| lmoves into this position pin 343 lifts catch 342 vand becomes reengaged thereby. Meanwhile, the winding of the new cop was begun themoment rod 9 moved far enough to'the -right to release rod 505 and allow clutch |24, |25 to become reengaged, which occurred just afterr For this purpose the builder cone holder 33| bears a lug 33|a which comes to abu't against a rod 33Ib l slidably mounted in the frame of the machine and engagingv at its outer end the upper arm of bell crank lever 420, 4|9, which controls the engagement of the cam unit clutch. The machine described operates in the following manner:

A cop tube I3 is set up between the spindle 4 and .socket 6 and the thread is drawn down under thread detector roller 29 and over thread guide roller |4 and clamped between the butt of the cop tube and the ange 4b of the spindle. The magazine 561V is iilled with empty cop tubes. The rod 506, which has been standing in its-,left

end position (Fig. 1) holding out the clutch disk |25 is puued forward by handle 494 untu the dog 502..;lrops into place behind lug 602. This throws in the 'clutch disk |26 and the spindle 75 begins to rotate. At this time the thread guide is in its left end position shown in Fig. 2 and the thread begins to wind upon the bottom end of vthe cop tube. I'he spindle 4 is reciprocated by cam 303, causing the thread to be laid upon the cop tube in a cross winding of about the extent of the conical 4bottom of the cop tube. The builder cone support 33| has the position relativeto the thread guide support |5 shown in Fig. 1, the two supports being connected by the hook 342. 'Ihey are, however, in a position more to the left than that shown in Fig. v1, opposite the bottom of the cop tube.A As the thread begins to accumulate on the cop tube it touches the builder cone 330 at the extreme right end' of the traversing. movement of the spindle and pushes the builder cone slightly to the right, this being the direction in which the builder cone support is free to move on shaft 332. The thread guide |4 is moved to the right with the builder cone and thus the field of traverse progresses along the cop tube, building the winding into a cop. The windingproceeds until lug 33|a on the builder cone support strikes rod 33|b and rocks the bell crank lever 420, 4|9 counterclockwise to throw in the clutch which drives the cam unit 339e, 4|, 566, and 336c.

The rst cam of the cam unit to act is the cam 339e, which rocks the bell crank lever 339,

339b counterclockwise and thrusts the rod 9 to the left. This overcomes the effect of the traversing cam 303, the motion of which is now entirely taken up by spring 308e. During 'the leftward movement of the bar 9 the nger 493. strikes rod 505 and throws the clutch disk |25 out of engagement, stopping .the rotation of the spindle. Also, pin 34|b strikes stop 342 and turns lever 34| in clockwise direction about pivot 34|a, thus retracting the socket 5 from the end of the cop tube and releasing the cop from the spindle.

The next cam to take eiect is the cam 4|,

which releases the pin 42b of pitman 42 and allows spring 44a to throw lever 44 to the left. This lever first strikes hook 342 and vdisconnects the thread guide support from the builder cone support. 'I'hen it strikes pin 49 and throws'the thread guide support to the left until it reaches the position shown in Fig. 2, leaving the builder v cone at the last wound endof the cop; 'I'he released cop slides down chute |03 on to conveyor "l 05, its trailing thread being guided by the return movement of the thread guide I4 into the position shown in Fig. 2, where it lies against the iiange 4b of the spindle 4. In this movement the thread passes between the blades of the shears |,|0, ready to be severed by the shears when theyl are actuated presently.

Ihe next cam to take effect is cam 56B (Fig. 2), which rocks the transfer device 3|3. The transfer device carries an empty cop tube from the magazine 561 into position between the spindle 4 and socket 6 and also actuates the shears y| |0 to sever the trailing endv of thread. Thereafter the bell crank lever 339, 3391i is'released by cam 339e and the rod Bois restored by spring 308e to the position in which pin 34| is removed from stop 342. The socket 6 is thrown against the end of cop tube |3 by spring 1a and throws the cop tube against the flange 4b, clamping the thread. The transfer device 3|3 is then rocked to the right (Fig. 3) and another empty cop tube settles into its tube holders 3| 3a. g

The release of rod 9 by bell crank lever 339, 33912 allows finger 493 to move to the right suiiiciently to release rod 505 and allow spring 508 to reengage clutch disk |25. This starts the winding of the new cop. Shortly after the transfer device 3|3 has been restored to normal position the cam 336e releases the pin 33511 of`pit-V man 335 and allows spring 331a to throw `lever 331 to the left. The lever 331 ilrst strikes bushing 33|!y and pushes the latter in against the action of spring 33811, thus releasing the balls 334 from shaft 332-.. Further travel of the lever 331' slides the builder cone support 33| to the left, the builder cone 330 moving over the newly positioned cop tube |3. When the builder cone support 33| reaches the thread guide support i5 two supportstogether again. The levers 44 and 331 are restoredto the position shown in Fig. 1 by their respective cams 4| and 336e. The winding thus proceeds automatically and will continue as long as newcop tubes are supplied to the magazine 561.

Instead of making the thread guide` and the builder mechanism separable, so that the thread guide can be returnedv to thebase of the cop independently of the builder/mechanism, we may simply move the thread itself back to the base of the cop without changing the position of the thread guide. In this case the thread guide and builder mechanism may constitute an inseparable unit. An example of such a machine is shown in Fig. 4. The separate thread guide car-f' rier I5 of Fig. 1 is eliminated and-the thread.

guide |4 is mounted directly on the builder cone holder 33|. In place of the lever 44 of Fig. 1 for restoring the thread guide, a lever 344 is provided,

which bears a pin 345 adapted to engage the .thread between the thread guide I4 and the oop -the hook 342 passes over pin 343 and locks the to cause a progressive movement of said thread guide device with respect to said supporting device in a direction parallel to the axis of rotation of said supporting device, said movement conforming to, and being controlled by, the rate of accumulationl of windings of thread on said supportingdevice and being adapted to build the winding body into a cop; and means acting automatically upon the attainment of a given length by the cop to return the thread to the rst-wound end of the cop while said builder means remains at the last-wound end of the cop.

2. In a cop winder, a rotary supporting device on which to wind thread, a thread guide device adjacent said supporting device, means for reciprocating one of said devices with respect to the other, builder means connected with said thread guide device adapted to feel the accumulating windings of thread on said supporting device and to cause a progressive movement-of said thread guide device with respect to said supporting device in a direction parallel to the axis of rotation of said supporting device; said movement conforming to, and being controlled by, the rate of accumulation of windings of thread on said supporting device and being adapted to build -the winding body into a cop; and means acting auto-y matically upon vthe attainment of a given length the other, builder' means connected with said' thread guide device adapted to feel the accumulating windings of thread on saidV supporting device and to cause a progressive movement of said thread guide device with respect to said supportling device in a direction parallel to the axis of rotation of said supporting device, said movement conforming to, and being controlled by, the rate of accumulation of windings of thread on said supportingdevice and'being adapted to build thev winding body into a cop; and means acting automatically upon the attainment of a given length by the cop-to engage the thread ,at a point between said thread guide and the cop to returnthe thread) to the first-wound end of the cop while v said builder means remains at the last-wound end of the cop.

4. In a cop Winder, a rotary supporting device von which to wind thread, a thread guide device adjacent said supporting device, means for reciprocating one of said devices with respect to the other, builder means detachably connected to said thread guide device', said thread guide device and said builder means being mounted so as to beindependently slidable parallel to the axis of said supporting device, vsaid, builder means being adapted to feel the accumulating windings of thread on said supporting device and to cause a progressive movement of said thread guide device with respect to said supporting device in a di` rection parallel to the axis of rotation of said l supporting device, said movement conforming to,

and being controlled by, the rate of accumulation of windings of thread on said supporting device .and being adapted to build the winding body into a cop; a control lever; and means acting automatically upon the attainment of a given length by the cop to move said control lever to disengage the connection between said thread guide device and said builder means and to return said thread guide device to the rst-wound end of the cop while, said builder means remains at the lastwound end of the cop.

5. In a cop Winder, a rotary supporting device on which to wind thread, av thread guide device adjacent said supporting device, means for reciprocating one of said devices with'respect to the other, builder means adapted to feel the accumulating windingsuof thread of said supporting device, a snap hook detachably connecting said builder meansto' said thread guide device, said builder means being adapted to move said thread 4guide device progressively with respect to said supporting devicein va direction parallel to the axis of rotation of said supporting device, in accordance with Atherrate of accumulation of windings of thread on said supporting device, to build the winding body into a cop; means acting automaticallyA upon the attainment of a given length by the cop to disengage said snap hook and to return said thread lguide device to the iirst-wound end of the cop while said builder means remains at the last-wound end of the cop; and means acting subsequently to move said builder means back to said thread guide device and to reengage said snap hook.

6. In a cop Winder, a spindle device, a tail stock for holding a cop tube to saidspindle device, means for rotating said spindle device, a thread guide device adjacent said spindle device, means for reciprocating one of said devices with respect to the other, builder means connected with said thread guide device including a v builder cone adapted to feel the windings of thread accumulating on the cop tube and to cause a progressive movement of said thread guide device from said spindle device toward said tail stock, said move ment conforming to, and being controlled by, the

rate of accumulation of windings of Ythread on the tube and being adapted to -build the winding body into acop; means acting automaticallyupon the attainment of a given length by the cop to return the thread to said spindle while said builder means remains near said tail stock, means acting automatically to move said tail stock to release the wound cop, means acting automatically to insert a new tube between said spindle device and said tail stock, and means acting automatically to move said builderrcone over the new tube into proximity to said spindle device.

WILHELM REINERS. GUSTAV KAI-ILISCH.

Images