US2395890A

US2395890A - Winding machine

Info

Publication number: US2395890A
Application number: US506245A
Authority: US
Inventors: Lodge Alvin
Original assignee: American Viscose Corp
Current assignee: Akzo Nobel UK PLC
Priority date: 1943-10-14
Filing date: 1943-10-14
Publication date: 1946-03-05
Anticipated expiration: 1963-03-05

Description

March 5, 1946. A. LODGE WINDING MACHINE Filed Oct. 14, 1943 N 5 Sheets-Sheet 1 .Zr'zvenior A LV IN LODG E y 7;:19 aiiarneya' March 5, 1946.

LODGE WINDING MACHINE Filed Oct. 14, 1943 v E-Sheets-ShSe'l; 2

March 5, 1946. A. LODGE WINDING MACHINE Filed Oct. 14, 1943 :s sheets-sheets chine having means to a winding Patented Mar. 5, 1946 WINDING MACHINE Alvin Lodge, Mcadville, Pa., assignor to American Viscose Corporation, poration of Delaware Wilmington, Del., a cor- Application October 14, 1943, Serial No. 506,245

1.4 Claims.

This invention relates to the winding-of yarn on tubes, cones or other yarn carriers and more particularly it relates to an automatically operated means for winding a r serve length of yarn on the end of the carrier belore winding the yarn package.

It has been found advantageous to have a reserve length of yarn wound on the carriers of yarn packages to serve as a transfer tail where the yarn is used on warping or knitting machines, but where the last operation of preparing the yarn package comprises a twisting operation.

the beginning of the winding there is usually at a short length of the yarn which is not uniformly twisted. It is, therefore, an object of this invention to provide automatic means for winding on the end of the yarn carrier a waste tail of sufficient length to include all the non-uniformly twisted yarn at the start of the winding prior to winding the usual transfer tail of reserve yarn, the two groups of turns of the yarn being spaced from each other and from the yarn package on the carrier.

In the drawings, which illustrate a preferred embodiment of this invention,

Fig. l is a partial for winding a waste tail and a transfer tail in accordance with this invention, the parts being positioned as at the start of winding the waste turns;

Fig. 2 is a view similar to Fig. 1 and showing the parts as positioned during the winding of the yarn package; Figs. 3 and 4 are partial views in elevation showing the relative positions of the yarn guides during the winding of the waste and transfer tails and during the winding of the yarn package, respectively;

Fig. 5 is a view in elevation of the ratchet wheels, cam and cam follower shown in Figs. 1 and 2; and

Fig. 6 is a fragmentary sectional view taken as on line 6-6 of Fig. 3.

.In the drawings, the invention is shown applied machine of known construction, only such parts of the winding machine being shown as are necessary to illustrate the application of the invention thereto. Of the winding machine there is shown the driving rollers I mounted at opposite sides of the machine on shafts 2 supported in suitable shown) carried by the machine frame which comprises a bed plate 4. The yarn carriers, shown as tubes, 6 on which the yarn is to be wound, are mounted upon shafts 8 supported so bearings (not plan view of a winding mathereon. The

that the carriers and theyarn wound thereon rest upon the driving rollers l and are driven thereby. The yarn passes between each tube 6 and its roll I and during the winding of the body of the package, the

is reciprocated throughout the winding operation so as to distribute the yarn on the tube.

To receive the waste and transfer turns of the is guided tothe grooves of each tube by means of a yarn guide l4 mounted on a bar l6 which is supported by spaced links l8 pivotally connected.

to the bar l6 and a bar carried by the machine frame. A spring 22 connected to an end of the bar l6 and to the machine frame biases the bar Hi to a position as shown in Fig. 4, while a pin 24 mounted in an end of a lever arm 26 and engaging between

pins

25 and 21 fixed in the bar I6 controls the movement of the bar I6.

The lever arm 26 is one arm of a substantially T-shaped lever pivotally mounted as at 28, on the bed plate 4 and having an arm 26' extending to the opposite side with a pin 24' engaging between pins 25' and Z'l' fixed in a bar |6 to control the operation of the same simultaneously with the operation of the bar Hi, the bar [6' being mounted similarly to the bar l6 and having yarn guides l4 mounted T-shaped lever is also provided with a curved arm 30 having spaced pins 3| and 33 projecting upwardly therefrom at its outer sitioned inwardly from the pins 3| and 33.

The cam follower 32is positioned to engage a cam 34 mounted for rotation about a bolt 36 fixed in the bed plate 4. A spring 2| coiled about a hub attached to the cam and having one end engaged with the base plate 4 and its other end engaged with the cam 34, opposes the rotation of the cam in a clockwise direction. The cam 34 is a fiat circular disk having an irregular sectorlike portion cut away and providing a circular cam face 34| extending approximately 270 and a short cam face 342 of less radius than the larger cam face 34!. Bolts 38 and springs 39 surrounding the bolts yieldingly secure a stop member 23 to the cam 34 where the portion has been cut away, the member 23 projecting radially of the cam 34 to engage with the cam follower 32.

Secured to the upper surface of the cam disk 34 is a ratchet wheel 40 arranged to be engaged for operation vin a clockwise direction by a pawl 43 p v tally mounted at an end of a lever 44 yarn is guided by a yarn guide In mounted upon the traverse bar l2 which of the machine and provided to engage nalled in the machine frame.

shaft 56 is a lever arm 52 positioned to engage in Figs. 1 and 3, so that the yarn to be wound in which is pivotally mounted on the bolt 36 supporting the cam 34. A spring 46 engaging the pawl 42 and its pivotal support biases the pawl the ratchet wheel 46.

The opposite end a lever arm 46 fixed on a shaft 56 suitably jour- Also fixed on the a cam 54 fixed on the roller shaft 2. A spring 56 secured to the upper end of the lever 46 and the adjacent end of the lever 44 holds these levers in engagement while a spring 56 secured to the lever 52 and to the machine frame tends to hold the lever 52 in engagement with the cam 54. A locking dog 66 pivotally mounted on the bed plate 4 is biased by a spring 62 to engage with the ratchet wheel 46 and prevent rotation of the ratchet wheel and cam 34 in a counter-clockwise direction by the spring 2|. Mounted on the dog 66 is an adjustable abutment 64 positioned in the plane of the lever arm 36.

When the mechanism is operating to wind the waste tail on the tube and the parts are positioned as shown in Fig. 1, the follower 32 on lever 36 bears against the cam face 34i at or adjacent the stop member 23, pawl 42 is positioned to engage ratchet wheel 46, lever 52 bears against cam 54 and pin 24 on lever 26 bears against pin 25 and holds bar 16 pressed to the right. as seen yarn guides M are alined with the outer grooves Ed on the tubes 6 and the bar I6 is raised by the links [8 against the action of spring 22. With the shaft 2 operated to rotate rolls i and tubes 6 to wind the yarn in the outer groove 6a of each tube 6, rotation of cam 54 operates lever 52, once for each revolution of shaft 2 and, through shaft 56, lever 48 and lever 44.operates the pawl 42 to rotate the ratchet wheel 46 step by step in a clockwise direction and shift the cam 34 against the action of spring 2|. The winding of the yarn in the outer groove 6a continues as the cam 34 is moved around step by step until the follower 32 passes from the cam face 34L As the follower 32 passes from the cam face 341, spring 22 shifts the bar l6 to move the yarn guide l4 to the left until it is alined with the inner groove 6b and at the same time, through the engagement of pin 25 with pin 24, shifts the levers 26, 36 so as to bring the follower 32 into contact with the cam face 342. Cam face 342 limits the movement of the levers 26, 36 and bar l6 and holds the yarn guide l4 alined with the inner groove 6b.

Continued operation of the shaft 2 causes the the groove 61) and continues the stepping around of the cam 34 until the cam face 342 passes from beneath the follower 32 per mitting the spring 22 to shift the bar i6 further to the left and to cause the follower 32 to move into-the cutaway portion of the cam 34. This movement of lever 36 brings pin 33 against lever 44, causing lever 44'to rotate on the bolt 36 and, through spring 56, to rotate lever 46, shaft 56 and lever 52, lifting lever 52 from the cam 54 against the action of spring 58 and preventing further operation of the lever 52 by the cam .54. Locking dog 66 remains in engagement with the of the lever 44 is engaged by package the yarn guide i4 from the groove 6b and, at the same time, lowers the bar i6 and yarn guide M as the supporting links l8 pivot about their connection to the fixed bar 26. This movement of the yarn guide i4 positions the yarn to be engaged by the yarn guide l6, the yarn passing up the inclined side of yarn guide l6 and being retained in the slot thereof. Continued movement of the yarn guide i6 thereupon distributes the yarn upon the tube 6 during the winding of the in the usual manner.

Upon replacement of filled tubes with empty tubes, the levers 26, 36 are operated by means of handle 66, rotating the lever 36 about the pivot 28 and shifting bar I6 to the right to raise the bar l6 and aline the yarn guide [4 with the groove 6a. Rotation of the lever 36 removes pin 33 from the lever 44 and engages pin 3! with the pawl 42 to disengage the pawl from the ratchet wheel 46 permitting spring 58 to return lever 52 to engagement with cam 54 and shifting levers 48 and 44 with lever 52. Continued movement of the lever 36 engages the lever with the abutment 64 on the locking dog 66 and disengages the dog 66 from the ratchet wheel 46. Disengagement of the dog 66 from the ratchet wheel permits the spring 2i to rotate the cam 34 and ratchet wheel 46 counter-clockwise until the stop member 23 on the cam 34 engages the cam follower 32, thus causing the sam 34 to be returned to its starting position. The springs 39 on bolt 38 cushion the blow of the stop member 23 and prevent damage to the various parts. The parts are now in starting position and upon placing the yarn in the yarn guide 14 and securing the end of the yarn so it will wind upon the tube 6, the cycle of operations is repeated.

The return of the cam 34 to its initial position for the start of each winding operat on insures uniform lengths of the waste and transfer tails being wound at each operation. When the yarn package is used, severing the yarn between the waste and transfer tails insures transfer tails of uniform length and uniform twist throughout.

What is claimed is:

able carrier, the combination of a yarn guide for guiding the winding of the yarn package on the carrier, means operating the yarn guide to distribute the yarn on the carrier, 21 second yarn guide and means operating said second yarn guide for guiding the winding of a plurality of spaced groups of turns of the yarn on the carrier.

2. In a device for winding yarn upon a rotatable carrier, the combination of a yarn guide for guiding the winding of the yarn package on the carrier, means operating the yarn guide to disq tribute the yarn on the carrier, a second yarn ratchet wheel 46, as shown in Fig. 2, and prevents spring 2| from shifting the cam 34 or ratchet 46 from the position to which it was moved by the pawl 42.

Throughout the operation of the machine, the traverse bar i2 has been reciprocated, carrying with it the yarn guide l6. The second movement to the left of the bar l6 by the spring 22 shifts guide and means operating said second yarn guide for guiding the winding of a plurality of spaced groups of turns of the yarn on the carrier and for yielding the yarn to said first yarn guide.

3. In a device for winding yarn upon a rotatable oarrier, the combination of a yarn guide for guiding the winding of the yarn package on the carrier, means operating the yarn guide to disribute the yarn on the carrier, a second yarn ,uide and means operating upon the winding of a group of a predetermined number of turns of the yarn on the carrier by said second yarn guide to shift said second yarn guide for guiding the winding of a second group of turns of the yarn on the carrier spaced from said first group of turns.

4. In a device for winding yarn upon a rotatable carrier. the combination of a yarn guide for guiding the winding of the yarn package on the carrier, means operating the yarn guide to distribute the yarn on the carrier, a second yarn guide for guarding the winding of waste and transfer tails 'of the yarn on the carrier and means operative upon the winding of a predetermined number of turns of the waste tail for shifting said second yarn guide for guiding the winding oi the transfer tail 5. In a device for winding yarn upon a rotatable carrier, the combination of a yarn guide for guiding the winding of the yarn package on the carrier, means operating the yarn guide to distribute the yarn on the carrier, a second yarn guide for guiding the winding of waste and transfer tails of the yarn n the carrier and means operative upon the winding of a predetermined number of turns of the waste tail for shifting said second yarn guide for guiding the winding of the transfer tail, said second yarn guide shifting means being operative upon the winding of a predetermined number of turns of the transfer tail for shifting said second yarn guide for yielding the yarn to-said first yarn guide.

6. In a device for winding yarn upon a rotatable carrier, the combination of a yarn guide, a movable bar carrying said yarn guide, means for operating said bar and yarn guide from one yarn guiding position to another yarn guiding position, a lever controlling the operation of said ,bar by said means, a cam controlling the operation of said lever and means operated in accordance with the rotation of said carrier for operating said cam.

'7. In a device for winding yarn upon a rotatable carrier, the combination of a yarn guide, a movable bar carrying said yarn guide, means for operating said bar and yarn guide from one yarn guiding position to a second yarn guiding position and from said second yarn guiding position to a position in which the yarn guide is inactive, a lever controlling the operation of said bar, a cam controlling the operation of said lever to provide a step by step operation of said bar and yarn guide for the winding of spaced groups of 3 ling the operation of said bar and cam means operating in accordance with the rotation of the carrier controlling operation oi said lever, said cam means being rendered inoperative upon movement of said second yarn guide from said second winding position.

10. In a, device for winding. yarn upon a rotatable carrier, the combination of a yarn guide for carrier, means operating said yarn guide to distribute the yarn on the carrier, a second yarn guide, a movable bar carrying said second yarn guide, means operating said bar for shifting said second yarn guide from one winding position to a second winding position, and from said second winding position to a position in which the yarn is taken by said first yarn guide for the winding of the yarn package, a lever controlling the operation of said bar and cam means operating in accordance with the rotation of the carrier controlling operation of said lever, said cam means being held inactive during the winding of the yarn package.

11. In a device for winding yarn upon a rotatable carrier, the combination of a yarn guide for guiding the winding of a yarn package on the carrier, means operating said yarn guide to distribute the yam on the carrier, a second yarn guide, a movable barcarrying said second'yam guide, means operating said bar for shifting said second yarn guide from a position for winding a waste tail of a predetermined number of turns to a second position for winding a transfer tail of a predetermined number oi turns and from said second position to a, position in which the yarn is taken by said first yarn guide for the winding of the yarn package, a lever controlling the operation of said bar and cam means operating in accordance with the rotation of the carrier controlling operation of said lever.

12. In a device for winding yarn upon a rotatable carrier, the combination of a yarn guide for guiding the winding of a yarn package on the carrier, means relatively shifting said yarn guide and carrier to distribute the yarn on the carrier, 'a second yarn guide and means relaturns of the yarn on the carrier and means operated in accordance with the rotation of said carrier for operating said cam.

8. In a device for winding yarn upon a rotatable carrier, the combination of a yarn guide for guiding the winding of a yarn package'on the carrier, means operating said yarn guide to distribute the yarn on the carrier, a second yarn guide, a movable bar carrying said second yarn turns of the yarn guide, means operating said bar for shifting said 7 second yarn guide from one winding position to a second winding position, and 'from said second winding position to a position in which the yarn is taken by said first yarn guide, a lever controlling the operation of said bar and cam means operating in accordance with the rotation of the carrier controlling operation of said lever. 9. In a device for winding yarn upon a rotatable carrier, the combination of a yarn guide for o guiding the winding of a yarn package on the carrier, means operating said yarn guide to distribute the yarn on the carrier, a second yarn guide, a movable bar carrying said second yarn guide, means operating said bar for shifting said tiveiy shifting said second yarn guide and carrier for forming a plurality of spaced groups of on the carrier.

13. In a device for winding yarn upon a rotatable carrier, the combination of a yarn guide for guiding the winding of a yarn package onthe carrier, means relatively shifting said yarn guide and carrier to distribute the yarn on the carrier, a second yarn guide for guiding the winding of the yarn on the carrier and means relatively shifting said carrier and said second yarn guide upon the winding of a group of her of turns of the yarn on the carrier for the winding of asecondgroup 01" turns of the yarn spaced from the first group of turns.

14. In a device for winding yarn upon a rotatable carrier, the combination of a yam guide for guiding the winding of a yarn package on the forming a plurality of spaced groups of turns of the yarn on the carrier, said groups being of pre-. determined numbers of turns.

- ALVIN LODGE.

a predetermined numyarn on the carrier,