US2432564A - Twisting and winding apparatus for transfer tail - Google Patents

Description

Dec. 16, 1947. w, J v N r I 2,432,564

TWISTING AND WINDING APPARATUS FOR TRANSFER TAIL Filed June 1, 1946 INVENTORS. WILLIAM J.EL.VIN. ELMER R. STAHL.

BY %lz o mzvs. L

Patented Dec. 16,1947 2,432,55 UNITED STATES PATENT OFFICE 'rwIs'rmG AND WINDING Arman-rue FOR TRANSFER ran.- 1

William J. Elvin, Frostburg, Md., and Elmer a. Stahl, Mpyersdale, Pa., asslgnors' to Cclanese Corporation of America, a corporation of Delaware AppllcatlonJune 1, 19.46, Serial No. 679,794

9 Claims. (CI. 57-45) 2 This invention relates to an improved mechpigtail yarn guide 4 set in a bar 5 and coming anism adapted to be employed in connection with from any suitable source of supply, such as a yarn twisting and winding apparatus whereby a metier or spinning cabinet (not shown), passes magazine wrap or transfer tail may be applied to downward and is threaded through a traveler 9 yarn packages, such as bobbins and the like. dur- 5 mounted on a spinning ring 'I set in a ring holding yarn twisting and winding operations. er 8, the latter being mounted on a vertically re- As commonly understood in the textile art, a ciprocable ring rail 9. Ring rail 9 carries a plumagazine wrap or transfer tail is a portion of rality of said spinning rings suitably spaced the inner end of the first yarn wound on the thereon so that multiple winding operations may yarn support, which is so disposed as to be posi- 10 be carried on. Beneath ring rail 9 is a stationary tively secured during the winding of the remainchannel Ill on which is mounted a series of spinder of the yarn package, yet freely available for dles II, each of which supports a bobbin (only tying directly to the outer end of the yarn on an one being shown for the sake of clarity) set other yam package. The purpose of providing thereon and in frictional engagement therewith. a magazine wrap or transfer tail is to enable an Bobbin I2 comprises abarrel l3 and a base flange uninterrupted flow of yarn to be maintained I4, the upper plane surface'of the latter being from a depleted yarn package to a full package provided with tangential slots I 5 and I9 which adjacent thereto, as in a creel or other yarn communicate with a peripheral groove I! cut in package holder on which both yarn packages are said base flange I4, which peripheral groove is supported. adapted to receive and retain the desired maga- An object of this invention is the provision of zine wrap or transfer tail. The bobbin I2 may be means, cooperating with ring twisting and windof the type shown in Patent No. 2,298,357 to Elvin ing devices whereby yarns are wound on to yarn et al. Spindles II are rotated at high speed by package supports, for varying the traverse stroke suitable driving means (not shown) which enof said twisting and winding devices so that a gage the whorl I8 of said spindles in the normal magazine wrap or transfer tail may be applied manner well understood in theart. on said yarn package supports. The rotation of spindle II and yarn package Another object of this invention is to provide support I2 causes yarn 3 to be wound thereon. means for automatically applying a magazine The yarn windings are suitably distributed along wrap or transfer tail simultaneously to each of the barrel I4 of yarn package support I! to form a series or bank of yarn package supports, while a yarn package of the desired shape by a vertical said yarn package support are revolving at high reciprocating traverse and builder motion which speed. is imparted to ring rail 9. The traverse motion A further object of this invention is the proviof said ring rail 9 is produced through the recipsion of means forming an integral part of the rocating angular rotation of a shaft I9 which ac-' traverse mechanism of a twisting and winding tuates a lifter arm 20 integral with a collar 2| device, which means is adapted to vary the travsuitably fixed to shaft I9 for angular movement erse stroke of said device without interfering therewith. The angular rotational reciprocation with the normal operation thereof so that a magof shaft I9 is produced by suitable means, hereazine wrap or transfer tail will be applied to yarn 4o inafter described and this reciprocation causes packages being wound thereon. lifter arm 20 to be raised and lowered. The ris- Other objects of this invention will appear ing and falling action of lifter arm 20 thus profrom the following detailed description and the duced causes ring rail 9 to be raised and lowered accompanying drawing. through rod 22 having mounted thereon a foot In the accompanying drawing, wherein the 23 which rests on a roller M i m On a P preferred embodiments of our inv ntion r 25 fitted into a slot 26 at the end of arm 20. The shown, bar 5 carrying yarn guides 4 is also raised and Fig. 1 is a perspective view of a portion of a. lowered through the action of rod 21 having foot yarn winding device showing a pair of spindl 28 which rests on a roller 29 carried by arm 20, units, a yarn support or bobbin on one of them, thu maintaining constant the degree of balthe traversing ring rail and the traverse adjustlooning of the y ning mechanism of our invention cooperating 4 '\,A l is also fixed t0 Said Shaft the therewith, and free end of which lever is pivotally attached to Fig. 2 is a side-elevational view of an enthe main horizontal traverse bar by means of larged detail of a portion of said traverse adjust-1 a D n 80 that the re ipr cation of l ver 29' ing mechanism. caused by the angular movement of shaft I9 Like reference numerals indicate like parts effects the horizontal reciprocation or traverse throughout both view of th dr wi of said traverse bar. A lever 32, also fixed to shaft Referring now to the drawing and more par- I9, has a bifurcated free end forming fingers 39. tlcularly to Fig. 1, a yarn I passing through a -A pin 94 is carried between said fingers and has journaled thereon a connector bar 35 the use of which will hereinafter be set forth. To make the vertical traverse of bar and ring rail 9 smooth and even, the traverse bar 39 extends along substantially the entire length of the winding machine and actuates one or more additional ring rail traversing or lifter units (not shown) of a construction similar to that shown suitably disposed along the length of the winding machine and cooperating with said ring rail 9 through a plurality of levers 29' and lifter arms 20 acting on a plurality of lifting rods such as 22 and 21.

The connector bar 35 is connected to a pneumatic mechanism, generally indicated by reference numeral 38, which is, in part, keyed to the main traverse shaft 31, and, in part, freely rotatable thereon, as will be more fully described hereinafter. The pneumatic mechanism 36 controls the extent of the vertical traverse of ring rail 9 and guide bar 5 by enabling the relative angular position of reciprocating shaft l9 and the main traverse shaft 31 to be changed. Thus, the pneumatic control mechanism, at the start of the winding of the yarn 3 on the yarn package support l2, has no air supplied thereto thus permitting the lowering of the ring rail to a position where the yarn will wind in-the peripheral groove ll of the base flange l4 of the yarn support to provide a transfer tall or magazine wrap. The pneumatic control mechanism, after air is supplied thereto, permits a so-called normal reciprocation of the ring rail 9 and causes the yarn 3 to be wound on and satisfactorily disposed along barrel l3 of th yarn package support.

The control mechanism 36 is mounted on main traverse shaft 31 and is adapted, in part, to be rocked with said shaft and thus to reciprocate connector bar 35. The horizontal reciprocating motion of connector bar 35 is efiected by the action of a bell crank lever arm 38, which is pivotally mounted on shaft 31 and connected to said bar 35 by a pin 39. The other end of said bell crank lever arm is attached to a link 40 by means of a pin 4!. The upper or bifurcated end of link 40 is connected to one end of a rocker arm 42 by means of a pin 43, said rocker arm 42 pivoting on a pin 44 set in a bracket 45. The opposite end of said rocker arm 42 is pivotally mounted in the upper end of a piston connecting rod 48 by means of a pin 41, the lower end of said piston rod 46 being attached to a piston 48, contained in an air cylinder 49, ,by a wrist pin 58. Movement of the piston 48 in cylinder 49 is effected by introducing air under pressure from a suitable source of supply into cylinder 49 through a tube 5|. The distance through which the bell crank lever arm 38 may be moved by the action of the compressed air entering cylinder 49 and acting on piston 48, rocker arm 42 and link 49 may be controlled by means of adjustable set screws 52 and 53 which are threaded into a U-shaped bracket 54. Bracket 54 is integral with bracket 45 and with air cylinder 49, the whole being keyed to main traverse shaft 31 so as to rock therewith as a single unit.

During the regular running of the winding device, the entire weight or load of the ring rail 9 and the traverse assembly is supported by the air under pressure acting on piston 48 in cylinder 49, said load being transmitted to the piston, as indicated above, through the combined action of connector bar 35, bell crank lever arm 38, link 49, rocker arm 42 and piston connecting rod 48.

When air pressure of a degree suflicient to counteract fully this load is'rnaintained in cylinder 49. rocker arm 42 will act to force the upper fork of bell crank lever arm 38 down as far as it will go thus causing it to be maintained in contact with the surface of set screw 52, as shown in dot-dash line in Fig. 2. In this position the maximum downward traverse stroke of ring rail 9 is limited by the horizontal distance that bell crank lever arm 38 permits connector bar 35 to be moved due to the restraining force of the air under pressure in cylinder 49. Thus, when air under Pressure is in cylinder 49, the yarn 8 will wind only on to the barrel l3 of yarn package support i2.

When itis desired to place a magazine wrap or transfer tail in the peripheral groove H of flange l4, the air pressure in cylinder 49 is released on the downward traverse stroke of ring rail 9, suitable valve release means (not shown) being provided. Since the pneumatic force bal= ancing the weight of ring rail 9 and limiting the maximum length of the downward traverse stroke is no 'iongeroperative, bell crank lever arm 88 rotates on main traverse shaft 31 in a counter clockwise direction until the upper fork is in contact with set screw 53, as shown in the drawing. With bell crank lever arm 38 in this position, the downward traverse stroke is increased a short distance. At the lowermost position of ring rail 9 during the resulting increased traverse stroke, the traveler 6 and ring I are brought into the same plane as flange l4. This action causes yarn 3, winding on to yarn package support l2, to enter tangential'slot l5 and to be guided into the peripheral groove l1, where the desired magazine wrap or transfer tail is applied. The stroke of ring rail 9 is then reversed by main traverse shaft 31 and, when ring rail 9 is on the upward stroke following application of the magazine wrap, yarn 3 leaves peripheral groove l1, enters tangential slot 18 and is then taken up on the barrel 13 of yarn package support 12. Simultaneously, air under pressure is again caused to enter cylinder 49. The air pressure forces the piston 48 up and rocker arm 42 acting on bell crank lever arm 38 again presses it down against set screw 52 to shorten the traverse stroke. The entire traverse mechanism thus assumes its normal running position which is maintained until the package is filled.

Inthe event of air leakage or failure at cylinder 49, there is provided a lock nut 55 threaded on to a rod 58 set in bracket 54. Lock nut 55 may be moved by rotating hand crank 51 in the proper direction thus rotating shaft 58 carrying a helical gear 59 mounted on one end thereof. Helical gear 59 meshes with a helical gear 59 keyed to rod 55 causing the latter to rotate in bearing 81 and to move lock nut 55 up or down, as the case may be. Lock nut 55 limits the freedom of hell crank lever arm 38 to pivot and, depending upon the position which it is caused to assume by the rotation of crank handle 51, may be effectively employed to limit or control the traverse stroke of ring rail 9 without the use of compressed air acting on piston 48 in cylinder 49.

It i to be understood that the foregoing detailed description is given merely by way of illusleast one spinning ring and traveler mounted thereon for winding yarn on a rotating yarn support,,of means including a shaft for traversing the ring rail and means operatively connected to said shaft for increasing the length of the downward traverse stroke of said ring rail beyond the normal traverse stroke thereof, so as to cause the winding of a relatively small amount of yarn on the yarn support at a point spaced from the main body of yarn, said small amount of yarn being available for use as a transfer tail. 7

2. In a spinning device for producing yarn packages having a transfer tail, the combination with means including a ring rail having at least one spinning ring and traveller mounted thereon for winding yarn on a, rotating yarn support, of an angularly reciprocating traverse shaft, means including a rotatably mounted shaft reciprocating with said traverse shaft, a lever arm operatively connected to said rotatably mounted shaft for traversing the ring rail, and means, cooperating with said rotatably mounted shaft and said lever arm for increasing the length of the downward traverse stroke of said ring rail beyond the normal traverse thereof, so as to cause the winding of a relatively small amount of yarn on the yarn support at a point spaced from the main body of yarn, said small amount of yarn being packages having a transfer tall, the combination packages having a transfer tall, the combination with means including a ring rail having *at least one spinning ring and traveller mounted thereon for winding yarn on a rotating yarmsupport, of an angularly reciprocating traverse shaft operatively connected to a rotatable shaft so as to reciprocate said shaft uniformly therewith, a lever arm keyed to said rotatable shaft and reciprocatingtherewith, a vertical rod depending from said ring rail and resting on said reciprocating lever arm for traversing the ring rail, and pneumatically operated traverse control release means, including a bell crank lever pivotally mounted on the angularly reciprocating traverse shaft and cooperating with the lever arm and the rotatable shaft, for varying the angular rotation of said rotatable shaftrelative to the angularly reciprocating traverse shaft and increasing the length of the downward traverse stroke of the reciprocating lever arm and the ring rail beyond the normal traverse stroke thereof, so as to cause the winding of a relatively small amount of yarn on the yarn support at a point spaced from the main body of yarn, said small amount of yarn being available for use as a transfer tail.

6. In a spinning device for producing yarn packages having a transfer tail, the combination with means including a ring rail having at least one spinning ring and traveller mounted thereon for winding yarn on a rotating yarn support, of an angularly reciprocating traverse shaft operatively connected to a, rotatable shaft so as to reciprocate said shaft uniformly therewith, a lever arm keyed to said rotatable shaft and reciprocating therewith, a vertical rod depending from said ring rail and resting on said reciprocating lever arm for traversing the ring rail, and

\ traverse control release means including a bell means, cooperating with the angularly reciprocating traverse shaft and the rotatable shaft, for increasing-the length of the downward traverse stroke of said lever arm, so as to cause the winding of a relatively small amount of yarn on the yarn support at a point spaced from the main body of yarn, said small amount of yarn being available for use as a transfer tail.

4. In a spinning device for producing yarn packages having a transfer tail, the combination with means including a ring rail having at least one spinning ring and traveller mounted thereon for winding yarn on a rotating yarn support, of an angularly reciprocating traverse shaft operatively connected to a rotatable shaft so as to reciprocate said shaft uniformly therewith, a lever arm keyed to said rotatable shaft and reciprocating therewith, a vertical rod depending from said ring rail and resting on said reciprocating lever arm for traversing the ring rail, and means, including a bell crank lever mounted on the angularly reciprocating traverse shaft and cooperating with the lever arm and the rotatable shaft, for varying the angular rotation of said rotatable shaft relative to the angularly reciprocating traverse shaft and increasing the length of the downward traverse stroke of the reciprocating lever arm and the ring rail beyond the normal traverse stroke, so as to cause the winding of a relcrank lever pivotally mounted on the angularly reciprocating traverse shaft, a rod connected at one end to said reciprocating lever and and at the other end to one fork of said pivotally .mounted bell crank lever, a rocker arm attached to the other fork of said bell crank lever, and control means for allowing said rocker arm, bell crank-lever, rod and reciprocating lever arm to move through a predetermined angle and increase the angular rotation of the rotatable shaft relative to the angularly reciprocating traverse shaft, whereby the length of the downward traverse stroke of the reciprocating lever arm and the ring rail is increased beyond the normal traverse stroke thereof, so as to cause the winding of a relatively small amount of yarn on the yarn support at a point spaced from the main body of yarn, said small amount of yarn being available for use as a transfer tail.

'7. In spinning device for producing yarn packages having a transfer tail, the combination with means including a ring rail having at least one spinning ring and traveller mounted thereon for winding yarn on a rotating yarn support, of an angularly reciprocating traverse shaft operas tively connected to a rotatable shaft so as to reciprocate said shaft uniformly therewith, a lever arm keyed to said rotatable shaft and reciprocating therewith, a vertical rod depending from said ring rail and restingon said reciprocating lever arm for traversing the ring rail, and pneumatically operated traverse control release means including a bell crank lever pivotally mounted on the angularly reciprocating traverse shaft, a rod connected atone end to said reciprocating lever arm and at the other end to one fork of said pivotally mounted bell crank lever, a rocker arm attached to the other fork of said bell crank lever and pneumatic control means for allowing said rocker arm, bell crank lever, rod and reciprocating lever arm to move through a predetermined angle and increase the angular rotation of the rotatable shaft relative to the angularly reciprocating traverse shaft, whereby the length of the downward traverse stroke of the reciprocating lever arm and the ring rail is increased beyond the normal traverse stroke thereof; so as to cause the winding of a relatively small amount of yarn on the yarn support at a point spaced from the main body of yarn, saidsmall amount of yarn being available for use as a transfer tail.

8. In a spinning device for producing yarn packages having a transfer tall, the combination with means including a ring rail having at least one spinning ring and traveller mounted thereon for winding yarn on a, rotating yarn support, of an angularly reciprocating traverse shaft operatively connected to a rotatable shaft so as to reciprocate said shaftuniformly therewith, a lever arm keyed to said rotatable shaft and reciprocating therewith, a vertical rod depending fromsaid ring rail and resting on said reciprocating arm for traversing the ring rail, and pneumatically operated traverse control release means including a bell crank lever pivotally mounted on the angularly reciprocating traverse shaft, a rod connected at one end to said reciprocating lever arm and at the other end to one fork of said pivotally mounted bell crank lever, a rocker arm attached to the other fork of said bell crank lever, an air cylinder, a-

9. In a spinning device for producing yarn packages having a transfer tall, the combination with means including a ring rail having at least one spinning ring and traveller mounted thereon for winding yarn on a rotating yarn support, of an angularly reciprocating traverse shaft operatively connected to a rotatable shaft so as to reciprocate said shaft uniformly therewith, a lever arm ,keyed to said rotatable shaft and reciprocating therewith, a vertical rod depending from said ring rail andrestingpn said reciprocating arm for traversing the ring rail, and pneumatically operated traverse control release means including a bell crank lever pivotally mounted on the angularly reciprocating traverse shaft, a rod connected at one end to said reciprocating lever arm and at the other end to one fork of said pivotally mounted bell crank lever, a rocker arm attached to the other fork of said bell crank lever, adjustable stop means defining the limit of the pivotal movement of said bell crank lever and rocker arm, an air cylinder, a piston in said cylinder maintained in fixed position by air under pressure, and a piston rod attached to said piston and to said rocker arm, the release of the air under pressure allowing said rocker arm, bell crank lever, rod and reciprocating lever arm to move through a predetermined angle and increase the angular rotation of the rotatable shaft relative to the angularly reciprocating traverse shaft, whereby the lengthof the downward traverse stroke of the reciprocating lever arm and the ring rail is increased beyond the normal traverse stroke thereof, so as to cause the winding creased beyond the normal traverse stroke thereof, so as to cause the winding of a relatively small amount of yarn on the yarn support at a .point spaced from the main body of yarn, said small amount of yarn being available for use as a transfer tail.

of a relatively small amount of yarn on the yarn support at a point spaced from the main body of yarn, said small amount of yarn being available for use as a transfer tail.

WILLIAM J. ELVIN. ELMER R. STAI-LL.

REFERENCES CITED The following references are of record in the file of this patent:

UNITEIE) STATES PATENTS

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