US2209208A - Cop winding mechanism - Google Patents

Description

July 23, 1

REINERS ET AL COP WINDING MECHANISM Original Filed March 27, 1936 5 Sheets-Sheet '1 July 23, 1940. w RElNERs AL I 2,209,208

00? WINDING MECHANISM Original Filed larch 27. 1936 5 Sheets- Sheet 2 W' 'H W W 9" H' July 23, 1940.

w. REINERS ET AL COP WINDING MECHANISM Original Filed March 2'7, 1936 5 Sheets-Sheet 4 bud KM n\\ A \ww W RN July 23,1940. w 'E ET AL 2,209,208

cor wmnms MECHANISM Original Filed March 27, @936 5 Sheets-Sheet 5 to be described presently, to stop Patented July 23, 1940 UNITED STATES OOP WINDING MECHANISM Wilhelm Bleiners, Gladbach-Rheydt, and Gustav Kahllsch, Bheydt, Germany, assignors to W.

Schlafhorst &- 00.,

Gladbach-Rheydt, Germany, a German corporation Original application March 27, 1936, Serial No.

71,266. Divided and this application December 31, 1937, Serial No. 182,690. In Germany April 2, 1935 6 Claims.

This invention relates to a fully automatic machine for winding cops and is a division of our copending application, Serial No. 71,266, filedin Fig. 1, with parts broken away to expose por- I tions lying behind;

Fig. 3 is a fragmentary plan view of part of the control mechanism for the automatic opera.- tion of the machine, with parts in section;

Fig. 4 is an axial section of the cam and clutch unit shown in Fig. 3;

Fig. 5 is a'detail side elevational view of the mechanism for rocking the shaft which controls the traverse of the thread;

Figs. 6, 7, and 8 are detail views showing three stages in the winding of a cop;

Fig. 9 is a side elevation, partly in section, of

another embodiment of the invention; r

Fig. 10 is a front elevation of the machine shown in Fig. 9, with parts broken away to expose-portions lying behind; and

Fig. 11 is an axial section of a clutch and control mechanism forming a part of the machine shown in Fig. 9.

Figs. 1 to 4 will be described flrst.' There may be as many spindles as desired inone machine,

' all of them, or a group of them being driven from one shaft. Each spindle 4f is slidably mounted in a sleeve 2I2, which is rotatably supported in bearings 880, 80I of posts 5a and 5 respectively. The spindles are driven by a main drive shaft I through bevel gears 185 and 106. Each gear 106 is fixed upon the hub 101 of a clutch cone I24 rotatably mounted uponsleeve 2I2 and held against axial movement thereon by fixed collars 2II. Cooperating with the clutch cone I24, is a clutch cone I) mounted by its hub for limited sliding movement on the sleeve 2I2. A spring I21 urges the clutch cone I25f toward the clutch cone I24j. The cone I25 is keyed to spindle 41 by a key 802 fixed to the hub of the cone I25j and extending through a slot 803 in sleeve 2I2 into a key groove 804 in spindle 4f. The clutch can be released by automatic means, the rotation of the spindle 4f.

In this type of machine the thread is wound directly on the spindle, the wound body being pushed along the spindle to build it axially as the winding proceeds. The threads are guided to the spindles through thread guides I41 each carried by a bracket I39 loosely mounted on shaft I38. The brackets I39 have a limited rocking movement with respect to the shaft I38, each under the control of a spring 35, one end of which bears upon an arm 221 of bracket I39, while the other engages under a yoke I40 fixed upon shaft I38. The shaft I38 has a rocking motion imparted to it by any suitable means, such as the cam mechanism shown in Fig. 5. This comprises a heart cam 290 fixed on shaft I, a rock lever 289, 286 pivoted at 288' on the frame 236 and held against the cam by a spring 29I, a link 285, and an arm 284 fixed on shaft I38. The rocking movement of shaft I 38 is imparted through yokes I40, springs 35, and arms 221, to the brackets I39 and thread guides I4f during the winding process, to provide the traverse movement for cross winding the threads. The rocking of the thread guides can be interrupted by cams 228 on shaft 39, which are brought to bear against arms 221 at the time the cop is being dofied, the springs 35 then absorbing the rocking movement of shaft Surrounding each spindle 4 at the traverse zone of the thread guide I4 is a builder cone 2 I9 mounted on a post 885. The post 885 is fixed to a shaft 222 slidably supported in bearings 808, 801 of posts 50, 5f, respectively. The builder cone 2|!) stands in the position shown in Fig. 1 during the winding operation. As the thread is cross wound under the cone 2I9, the chase of the cop is shaped by the cone and the increasing bulk of thread accumulating under the cone is wedged to the right along the spindle, because the'force which it exerts against the cone has a component parallel to the axis of the spindle. In order to compact the windings of the cop a pressure is exerted against it by a tail stock comprising a thimble 220 rotatably mounted in a bearing 808 of a' post 22I. Each post 22I is slidably guided by a bearing 224 upon shaft 222 and is connected at its lower end to a rack bar 225, which meshes with a gear 226. The gears 228 are rotatably mounted upon shaft 39 and each has a flange 249 (Fig. 3) upon which is wrapped a cord 248 supporting a weight 241, which tends to rotate the gear 228 in counterclockwise direction, thus applying a pressure to the building cop through the tail stock 22I, 220.

being constantly'driven by means not shown.

One of these mechanisms is shown in detail in Figs. 2 and 3. A cam unit comprising a flange 82I and cams 228', 238, is revolubly mounted upon shaft 39. The cam unit has a recess 103 in which is held a sliding dog 245. A spring 248 within the recess 103 urges the dog 245 toward a flange 240 fixed on shaft 39, the flange having a notch 194 to receive the end of the dog, for clutching the cam unit to the rotating flange 240. During the winding operation, the dog 245 is held retracted from notch 104 by the wedge-shaped arm 24I of a bell crank lever 2, 242 pivotally mounted by a pin 229 on the frame 236. The arm 24I releases the dog 245 when the cop being wound on the appurtenant spindle attains its prescribed length, through the action of a dog 243 on the end of a rod 244 fixed to a boss 809 on post HI and guided in a bearing 830. During the revolution of the cam unit which follows, rod 244 is moved outward to such an extent, in a manner to be described presently, that dog 243 passes over arm 242, andarm 24! drops back into position to release clutch dog 245 after one revolution of the cam unit. Shortly after the cam unit has begun its revolution the cam 238 operates a lever I29, I28 pivoted at I30 to an arm of post 5a, to throw out of engagement the clutch disc I25 of the appurtenant spindle 4f, so that the spindle is stopped during the process of dofling the completed cop. The cam 228 comes into engagement with arm 22'! of bracket I39 shortly after the cam unit is set in operation, to stop the traverse movement of the thread guide I4 The domng of the cop is accomplished by moving thetail stock away from the end of the cop and pushing the cop off the spindle by means of the builder cone 2 l9. For this purpose, the. gear 228 is temporarily coupled to the cam unit 228, 238 by means of a dog 23I, 232, pivoted at 233 on the cam 228. This dog is under the influence of a spring, tending to rock the dog counterclockwise, as seen in Fig. 1, so that its lower leg rests upn;a cam 235. This is a stationary cam fixed upon an extension of bearing 23! on frame 236.

As soon as the cam 228 begins its rotation,

through the action of the clutch previously described, the lower arm of dog 23I, 232 leaves the cam 235 and the dog swings out into engagement with a lug 230on gear 226. The gear is therefore carried around with the cam unit in its rotation and thus slides the rack bar 225 to the right. At the beginning of this movement of the rack bar, the tail stock 220, 22I separates from the end of the cop body and shortly thereafter the bearing 224 comes to abut against the collar 223 fixed on shaft 222, following which the latter shaft is moved together with the rack bar 225 in its' further travel to the right. This movement continues until the builder cone 2I9 has pushed the cop over the end of spindle 4f, so that it drops into chute I03 which guides it onto a conveyor I05 mounted in a box I04. The release of the cop from the spindle occurs just before the arm 232 of the dog 23I, 232 comes into engagement with cam 235, which releases the dog from lug 230.

Thereupon the weight 241 revolves the gear 228 after moves both the tail stock and the builder cone together to their extreme left position.

In accordance with the invention preparation is made for the winding of a new cop on each spindle before aflnished cop is doffed therefrom. The manner in which this is-carried out will be explained by reference to Figs. 6-8. It has been stated that the operation of the cam 238, which disengages clutch I24,f, I25,f, and stops the spin- 7 dle is delayed somewhat after the cam unit begins its rotation; likewise, with the action of cam 228, which stops the traverse motion of the thread guide MI. The purpose of this lag is to permit a small amount of thread to be wound on the spindle beyond the nose of the cop, so as to hold the thread in readiness for the beginning of winding of the next cop. Fig. 6 shows the cop I2 just completed. Fig. 7 shows the cop shifted slightly beyond the traverse of the thread guide by the builder cone 2 I9, resulting in the winding of a small bunch of thread 8I0 on the bare spindle. Fig. 8 shows the cop pushed entirely beyond the end of the spindle, with its trailing thread drawn out and still attached to the bunch of thread 8"]. The cams 228 and 238 come into action at about the position shown in Fig. 7, with the result that the spindle 4] and thread guide I4f do not move between the positions of Figs. 7 and 8. When the cop slides down chute I03 onto the conveyor I05 the trailing thread is carried between the jaws I09, IIO of a pair of shears. These shears may be. operated automatically in any suitable way to cut the thread, for instance, by the cammi'ng action of post 805 on its return to the position shown in Fig. 1. When the builder cone 2I9 is restored to the position shown in Fig. 1 it passes over the small bunch of thread 8i 0 left on spindle 41 and the winding of the new cop begins on this bunch when the clutch I24 I25f, is reengaged by the release of lever I29, I28, by cam 238. The release of thread guide I4) by cam 228 takes place at the same time. The winding of the cops therefore proceeds in a fullv automatic manner.

In case of thread breakage, it is desirable to be able to remove the chase of the cop from buildercone 2I9. This can be done by the manipulative mechanism shown in Figs. 1 and 2. The end of spindle 4f bears a round knob 8| I, which is pull of weight 241 acting through the tail stock on the cop. A pawl 2I4 pivoted at 2I5 on hearing 8I3 engages a notch 2I1 of rod 2I3 to hold the parts normally in the position shown in Fig. 1. When it is desired to move the cop out a of the cone 2I9 the knob 2l6 of rod 2I3 is grasped and pulled to the right, thus camming pawl 2I4 out of notch 2|]. The rod 2I3 may be pulled far enough to the right to allow pawl 2I4 to drop into notch 2H, which locks the parts and allows the operative to examine the chase of the cop to find the broken end. After knotting the thread the cop is restored to the builder cone 2I9 by lifting pawl 2| 4 and allowing the spindle 4 to move back into the position shown in Fig. 1. A detector 211 pivoted at 28 on an arm of post 5a bears a roller 29, which rests upon the thread during the winding operation. If the thread breaks the detector drops toward the left and a The rod 2I3 is slidably suppin [02 on its projecting lower end engages the I88. The yarn is thus laid on each spindle in,a

cross wound body, which builds up under the cone 2I8. when the periphery of the body is large enough to bear against the cone the body is pushed toward the right along the spindle and begins to take the form of a cop, the chase of the cop being shaped in this process by the cone 2I8. The rightward movement of the wound body pushes the tail stock 228. 22 I, to the right, against the action of weight 281. reached a certain length the corresponding dog 288 rocks the bell crank lever 28I, 282, and releases the dog 285, thus engaging the cam unit 82I, 288, 228, with the flange 288 fixed to constantly rotating shaft .288. The first movement of the cam unit removes the dog 28I, 288, from cm 285, so that it turns out in position to strike the lug 288 on gear 228. The gear 228 then drives shaft 225 toward the right and removes tail stock 228, 22I, from the end of the cop. The bearing 228 soon strikes collar 228 on shaft 222 and this shaft then moves to the right with the shaft 225. Thereby the cone 2I8 pushes the cop I2f along the spindle 8 Meanwhile the spindle has continued to rotate and when the cop -is'moved to the right a small amount of yarn is wound upon the bare spindle (Fig. '1). At this time the cam 288 rocks lever I28, I28 to throw out'clutch I25! and stop the spindle. Also the cam 228 rides under arm 221 of the thread guide and stops the rocking of the latter. The movement of the cone 2I8 to the right continues until the cop is pushed off the end of the spindle (Fig. 8) when it is stopped by the dog 288, 28I striking cam 285- and disconnecting the gear 228 from the cam unit 82I, 238, 228. The cop drops into the chute I88, which guides it to conveyor I85, the trailing yarn passing between the blades of shears I88, I I8. As soon as the dog 28I, 288 is released the weight 281 moves the rack bar 225 to the left and bearing 228 strlking against post as movesthe latter to the left until cone 2I8 assumes the position shown in Fig.

1. On its return movement the arm 885 cams the.

shear blade I88 and severs the trailing yam. The

continued rotation of cam unit 82l, 288, 228 leads to the release of lever I28, I28 and the reengagement of clutch I28]; and to the release of arm rate motor, or from one of the shafts common to the group of spindles. An example of this construction is shown in Figs. 9 and 11, wherein the drive for the control mechanism of each individual spindle is independently. taken off from a main.

drive shaft I. "There may be as many spindles as desired in a group. Each spindle 8g'is rotatably mounted in bearings 888, "I, of posts 8", 8I8,

lars 2.

when any cop has a weight 281.

respectively. The spindle has'keyed to it one cone I259 of a clutch, the other cone I28q being rotatably mounted on the spindle by its hub 181 and held against axial movement thereon by col- The hub 181 bears a bevel gear 188 meshing with a bevel gear 185 fixed upon drive shaft I. The clutch cone I259 is pressed into contact with cone I289 by a coil spring I21, the opposite end of which abuts against a collar 8I1' fixed to spindle 89'. The collar 8" and the lefthand collar 2 prevent axial movement of spindle 8; in bearings 888, 8". 1

The thread is guided to each spindle through a thread-guide I8g carried by a bracket I880 pivoted at 288 upon a frame 288;]. An am 288 rigid with bracket I880 is connected by a link 285 to a rock lever 288, 281. This lever is pivoted at 288 upon the frame of the machine and its end 288 is pressed against a heart cam 288 on shaft I by a spring 28I. By this mechanism the thread guide is rocked to traverse the thread so that it will be cross wound upon the spindle. Surrounding the spindle 8g is a builder cone 2I8 mounted upon a post 885g fixed to a shaft 222. The shaft is guidedfor longitudinal movement in bearings 888 and 881 in posts 8I5, 8I8, respectively. A tail stock comprising a thimble'228 rotatably mounted in a bearing 888 on a post 22I serves to apply a pressure to the cop I2gto compact it. For this purpose the post 22I is slidably guided by a bearing 228 upon shaft 222 and is connected at its lower end toa rack bar 225 meshing with a gear 226. This gear is rotatably mounted upon a short shaft 282 fixed to a bearing 8I8 of frame 288a by a nut 8I8 screwed onto its threaded end 828. The gear 228 has a flange 288 around which is wrapped a cord 288 which bears at its lower end The weight tends to rotate the gear 228 counterclockwise,which pulls the rack bar 225 and tail stock 22I, 228 to the left.

The mechanism for controlling the automatic dofling of the completedcops is mountedupon shaft 282. A gear 28I rotatably carried by this shaft meshes with a. gear 288, which is supported by a shaft 218 upon frame 2880. Fixed to gear 288 is a sprocket 218 connected by a chain 211 to a sprocket 218 rotatably mounted upon a shaft 215 on post 8I5. The sprocket 218 has fixed to it a gear 218 which meshes with a gear 218 fixed to drive shaft I. By this mechanism the gear 28I is constantly driven. Rotatably mounted on shaft 282 beside gear 28I is a cam unit comprising a flange 82I and a cam 288. Guided in a recess 188 of the cam unit is a sliding dog 288 urged to the left by a spring 288. The gear- 28I has a recess 188 adapted to receive the end of the dog 285 when it moves to the left. The dog is held to the right during the winding operation by an arm 28I of a bell crank lever pivoted at 228 on the frame 288g. The other arm 282 of the bell crank lever cooperates with a dog 288 fixed upon a rod 288,- whlchissecured to a boss 888 on post 22I and guided in a bearing 888. when the copl2g attains the prescribed length the dog 288 trips'bell crank lever 282, 28I and releases dog 285, which couples cam ,unit 82I, 288, to constantly rotating gear 28I. The dog 288 passes over arm 282 in a subsequent movement of the post 22! to the right and allows the lever arm 28I to drop back into position to re-' lease the dog 285 after one revolutionof the cam unit. Shortly after the cam-unit begins its revolution can 288 rocks bell crank lever I 28, -I28,

pivoted at I88 on a projection of post "5, d 15" 'disengages clutch Illa, Illa, mu, mm the j rotation of the spindle.

The doiiing oi the cop is accomplished by, mov- 1 ing the tail stock away from the end of the cop and pushing the cop on the spindle by means f ofrthe builder cone 2". For this'purpose the gear 220 is temporarily coupled to the cam unit 2|, 2, by means-of a finger 23i projecting jfrom dog Ill. when the dog It! is'held to the right by arm '2, the fingerfli is positioned. out of the plane of a lug 23. on gear 228. Whenf the dog 2 moves to the left, the finger 2 fcam'unit in its rotation and slides the rack bar f2" to the right. The domng operation is thus carried out in the same way as'in the. machine shown in Fig. 1. V

comes'into the plane of lug 230 andengages the same when the cam 23. is revolved. The gear 226 is therefore carried around with the During the winding operation the builder cone ,llli'sheldintheposition showninFi8.9bya

dog 2M9 pivoted at 2!! on the post Iii and bearing by a shoulder 822 against a post 823 In case of thread breakage the ;lever I can be lifted by grasping handle 2",

on cone 2".

1 thus allowing the builder cone to be pushed back i from the chase of the cop, which enables the operative to find the broken end. The cop I29 1 during this operation is held against movement :to the left by the taper of the spindle. A thread 1 breakage detector I'lis pivoted at 28 on an arm of post 8|! and carries a grooved roller 2! resting upon the thread. It the thread breaks, the

detector drops to the left and a pin III on its lower end releases clutch Illa; i259.

The trailing end of thread from the dofled cop' jean be severed automatically by shears IN, NO. These may be actuated by a lug 824 on chute Ill 3 adapted to engage an arm 825 of the upper shear blade in when the post "to moves to its extremeright end position.

, spindle member, means for rotating said spindle We claim:

1. In a machine for winding tubeless cops, a

member, a yarn guide member adjacent said j spindle. member, means for moving one of said j members back and forth with respect to the other in a direction generally parallel to the axis of said spindle,. in order to traverse the yarn; means for ipushing the winding body gradually away from I the field obtraverse, in the direction of the axis of the spindle, in order to build the body into the 1 form of a cop; means for doiling the cop from the spindle; means operable in response to the i'attainment of a given length by the cop for seti ting said dofllng means in operation; means for j severing the yarn'trailing' from the doilfed cop;

and means for fixing said trailing end to the spindle before the operation of said severing 1 means. r

2. In a machine for winding tubeless cops. a

i spindle member, means for rotating said spindle imember, a yarn guide member adjacent said ispindle member, means -for moving one of said 'members back and forth with respect to the other 'in a direction generally parallel to the axis of said spindle, in order to traverse the yarn; means for pushing the winding body gradually jaway from the field of traverse, in the direction j'oi' the axis of the spindle, inorder to build the body into the form of a cop; meanwacting automatically in response to the attainment of a given glength by thecop to push the completed cop oil? }the spindle while the latter continues to rotate to'begin the winding of a new copon the spindle aaoaaoa behind the completed cop: and means for severing the yarn between the completed cop and the first windings of the new cop on the spindle.

3. In a machine for winding tubeless cops, a spindle member, means for rotating said spindle member, a yarn "guide member adjacent said.

spindle member, means for moving one of said members b and forth with respect to the other in a directio generally parallel to the axis of said spindle, in order to traverse the yarn; means for pushing the winding body gradually away from the field of traverse, in the direction of the axis of the spindle, in order to build the body into the form of a cop; means acting automatically inv response to the attainment of a given length by the cop to push the completed cop oil. the spindle while the latter continues to rotate to begin the winding of a new cop on the spindle behind the completed cop; means acting automatically to stop the rotation of the spindle from a timewhen a small bunch of the new cop has been wound upon the spindle and the previously completed cop has been pushed off the spindle; and means for severing the yarn between the completed cop and said bunch. a I o 4. In a'machine for winding tubeless cops, a

spindle memberfmeans for rotating said spindle member, a yarn guide member adjacent said spindle member, means for imparting a relative movement to said members to traverse the yarn; a builder device adapted to bear at an angle upon the rear end of the winding on the spindle to form it into a conical nose and to push the winding along the spindle to cause it to build axially into the form of a cop; means acting automatically when the cop attains a certain length, to move said builder device along the spindle so as to push the cop oi! the spindle, and then to restore said builder device to said initial position;

shaft, yarn guide members respectively associ-.

ated with said'spindle members, means for relatively moving said members to traverse the yarnspmeans associated with each spindle for shifting the wound bodies along the spindles. as the windings are laid on to cause them to build axially into the form of cops, individual devices associated with each spindle including means controlled independently by the progress of the winding on the respective spindles for pushing the completed cops on the spindles when they reach a prescribed length, means for stopping each spindle independently during a time beginning shortly after the associated pushing means begins to act and ending after the cop has been dotted, whereby the winding of a 'new cop is begun on each spindle behind the completed cop before the latter is dotted, and/means to'sever the trailing yarns from the dofl'ed cops.

6. In a machine for winding tubeless cops, a

ing connections including clutches for individually drivingsaid spindle members by said drive shaft, yarn guide members respectively associ-' drive shaft, a plurality of spindle members, driva ated with said spindle members, means for relatively moving said members to traverse the yarns, means associated with each spindle for shifting the wound bodies along the spindles as the windings are laid on to cause them to build axially into the form of cops, individual control units associated with the respective spindles, constantly operating driving means normally disconnected from said control units, means controlled by the progress of the winding on the individual spindles for individually coupling said control units to said driving means, means operated by the individual control units for pushing the cops ofl the respective spindles, means operated by the individual control units for stopping the respective spindles during a time beginning shortly after the respective pushing means has begun to act and ending after the respective completed cop has left its spindle, whereby each spindle winds a small bunch of reserve yarn behind the completed cop before it stops, and means for severing each yarn between said bunch and the completed cop.

WILIIELM REUTERS. GUSTAV KAHLISCH.

Images