US1797353A - Bunch-building and bobbin-forming attachment for spinning machines - Google Patents

Description

March 24, 1931. J. L. LYLE 1,797,353

BUNCH BUILDING AND BOBBIN FORMTNG ATTACHMENT FOR SPINNING MACHINES 'Filed May 31', 1928 2 Sheets-Sheet 1 J. L. LYLE March 24, 1931.

BUNCH BUILDING AND BOBBIN FORMING ATTACHMENT FOR SPINNING MACHINES 2 Sheets-Sheet 2 Filed May 31, 1928 'Patented Mar. 24, 1931 i Jes ie, LEE trial r Permian Has ett fin sh-empties Ann B BBiN-EQRME F Application filed, May 31,

This invention-relates to, a combinedbunch builder and bobbin former for use withspinning machines, one of the objects of the vention being to. provide simple. and elfici n -mechanism of: this character which will' regulate-the. quantity'ofi yarn left on quills. from automatic looms, to. properly shape the bob.- bins. to. be used in automatic looms, and to soswind the yarn on a quill as-to. holdyit more 1-0 securely at the nose, thereby to preventf it from slufling off;

A further objectlistoprovide a mechanism for positively and efieotively building asatisfactory bunch'oi yarn at the base of the quill so that more yarn will be located at "this point than. is customary in present day spinning practice.

1 Another ob'ect' is to. provide a mechanism which can be applied readily to. any spinning frame used in making fillingsfor automatic looms, said mechanism adapted to positively control theilength andt depth of thebunch. A still further'obj act is to provide" mechanism having anew) and-novel arrangement of adjustments whereby the. action of "the several working parts can be regulated to meet the conditions-under which the mecha.- n-ism isused. p 7

. With the foregoingand other objects inview which will appear as, the-description proceeds the invention resides'in the combination and arrangement of parts'andin the details v of construction hereinafter "described and claimed it being understood that changes in the precise i embodiment of the invention may be made within thesco.pe of what is claimed Without departing "from the spirit of the invention. I v In the accompanying drawings-the preferred form of the invention has been shown. In said'drawings, f. Figure 1' is afront ele :ationof thecombined bunch builder and bobbin former, showing therelative positions thereof, the starting 19' sition of the former being indicated by broken lines. f g I V Figure 2 isali elevation ofone side of the bunch builder, the cams, used in connection therewith being indicated by. broken lines,

the builder chain being removed.

en ighten: me

192a Serial no, 281,868; V

F gure 3' s ancl vatione the eplesite s de f -"the bunehbuilden I 4;. is a Plan; thei'e t F guiie 5 is. airlan View of the-bobbin ormer; k Figure 6 is an elevation of abobbin as made the apparatus ,c'enstittting t e pr seetiy nti t. a

Rete ringe th fig res by: cha acte off vetera e ldesigea eeth 2,1 der e f bun h hni'ideroneend at 1th, is sen-n ed o the ba e ft spi iniegitrame (12 st h w) y means of; he main bea ing axle. 2, located near'one end of the. builder arm. Thu he aidibi ilder atmtakes form f a e r havinga lens-arm and-a, short arm, a t ere being an extensi n. pivetally conectedj to the. sh rt and carry g a coune bel ne tadinstablr mounted-and adapted to, be h ld aga n t sliding? by a a;

from the short endiof the bu ld r-arm, this 7;;

crew consti uti g support for the extcn sion arm 3a s shown particularly in Fignre'fi. ne ide -tthe builderarm 1; i formed i h longitudinal gr ove 8' constitutin wa O -r taining and. guiding a slide '9 39 along one long tudin l-edge ofiwhich are anrangecl' raekteethlOfiOlllt end of. the slide can be previdedwithanadjnstable stop. screw ll adapted to, i it the movement of the s ide 91-t0- dthe ax e 2-. APu l y 12; is as meunt' d, on the builder arm linear thatfend t i ree r m te frem he ais e 2: While, ane her Pull y 13 i cu ted onth sl delt: A lon i tud nal Shaft it is jcurna ed bearings 15 p vi dther foron the low r port n f he so builder a 1 and secured to this shafit is a o m which meshes c nstant y with som of th y r k eeth 10, the lower por ien e the builderfarm 1 being cut away as at .7 t9 p i thisiengagernent Qfthe worm with the t eth. A brake screw 8. extends in c Que of the bearings 15. and; may he provided with any suitable friction means not shewn, .fior en gagement with the shat-t 14 so. as. to. retardits rotation.

A ratchet wheel 19 is securedto one end of the shaft 14 and pivotally mountedon this shaft adjacent the ratchet wheel is a lever 20 having a laterally extending lug 21 adapted to work within a yoke 22 extending laterally from one end of the builder'arm 1.

, One arm of this yoke has a stop screw 23 mounted therein and this stop screw cooperates with the other arm of the yoke for limiting the oscillation of the lever. A dog 24 is carried by one end of the lever and engages the periphery of the ratch wheel 19. Thus when lever 20 is swung in one direction the dog will act to impart a slight rotation to the ratchet wheel 19 whereas, when lever 20 is swung in the opposite direction, the dog will slip over the teeth-of the ratchet wheel. A take-up rod 25 is pivotally connected to lever 20, there being a series of apertures 26 any one of which is designed to receive the pivot pin 27. An adjustable connection between the takeup rod and lever 20 is provided in the manner just described. The upper portion of the take-up rod is screw threaded as shown at 28 for engagement by nuts 29, this rod being mounted in a bracket 30 adapted to be secured to a stationary portion of a spinning frame (not shown).

Pivotally mountedon the slide 9 between the pulley 13 and the axle 2 is atrip lever 31 having an offset end portion 32 carrying a roller 33. The other end portion of this lever hasan arm 34 pivotally connected thereto at larly spaced points shown at 40 inFigure 2.,

This small cam ispreferably formed of the hub portion of the main cam 41 which, as shown in Figure 2, is formed with three peripheral depressions one of which is round ed, .as indicated at 42 while the others are angular as shown at 43 and 44. The bottoms of all of these depressions are the samedistance, 'radially,-from the axis ofrotation'of the cam. r

' Arranged at'one side of the builder arm 1 is a block 45 pivotally mounted, as shown at 46 and carrying a cam roller 47 adapted nor- 'mally to bear against the periphery of the cam 41. An adjusting screw 48 carried by a bracket 49 on the builder arm 1 engages one end of the pivoted block 45 and by means thereof the roller 47 can be adjusted relative to the periphery of the cam 41,

arm. close to the lever 20.

Abuilder chain 50 is anchored at one end to thebuilder arm 1, it being preferably connected to a block 51 at one side of the builder This chain is looped about the pulley 13 and extends under pulley 12 and thence upwardly over a guide pulley 52 to the bobbin former shown in Figure 1. This bobbin former includes the usual rocker mechanism a portion of which has been shown at 53. A lever 54 is pivotally mounted, at one, end, on the rocker mechanism as shown at 55 and has anoutstanding lug 56 to which one end of the chain 50 is adjustably connected by means of a stem 57 projecting from the end of the chain, and through the lug 56, this stem being held in place by a nut 58 or thelike. The chain bears constantly on the arcuate periphery 59 of the rocker mechanism. Lever 54 hasa recess 60 in its lower edge adjacent the pivot 55 and pivotally connected to the lever adjacent the recess is an elongated arcuate shoe 61 adapted to be adjusted angularly relative to the lever by means of a clamping screw 62 extending through a slot 63 in the shoe. The arcuate lower edge of the shoe is adapted to ride-on a small roller 64 extending from a fixed portion of the frame of themachine.

When the machine is operating the lever arm or extension 34 is in contact with the stud 38 and the roller 33 is in rolling contact with the small cam 39, as shown for example in Figure. 2. The parts are so proportioned that. when the roller 33 is thus located, the roller 47 will be clear of the cam 41. As the cam'39 rotates it imparts an oscillating mo-' tion to the arm 1 of the builder, this builder arm swinging about the axis of the axle 2,

such movement transmitting a very' short stroke to the ring rail (not shown) of thespinning frame and at the same time causing the dog 24 to impart an intermittent rotation in a clockwise direction to the ratchet wheel 19 and the shaft 14. This short stroke action set up by the cam 39 continues long enough tocau'se the desired small bunch of yarn to beformed on'the base of the quill as shown by full lines at a in Figure 6 and as hereinafter more fully explained. The rotation of the worm 16 with the shaft 14 will cause'the slide'9 to feed longitudinally, carrying the lever 31 with it until'finally the free end of the extension arm 34 will slip from under the stud 38 and allow the roller 33 to dropout of contact with the cam 39 7 against which it has been held by the weight 4 and the pull of the chain 50. Following this action the roller 47 comes against the periphery of the cam 41 so that, instead of theshort strokeset upby thecooperation of gradually paid out. As this chain is thus paid out the ring rail (not shown) will gradually rise until the bobbins are filled tothe desired height.

' By providing a bobbin former such as shown for example in Figure 1 the full stroke of the bunch builder is prevented from being transferred to the ring rail while the lower portion of the bobbin is being wound. During the first part of the operation of the mechanism the chain 50, being drawn back or shortened, the former will be located with its parts positioned as shown by broken lines in V Figure 1. At this time the roller 64 is within therecess 60 and the lever 54 with its shoe 61 is swung downwardly relative to the arcuate portion of the rocker mechanism. Consequently the chain 50 is permitted to move farther to the right, in Figure 1, than would otherwise be possible, this being due to the changed position of the lug 56 which is swung to the ri ht as shown by broken lines in Figure 1. 6n each stroke of the bunch builder the lever 54 is moved to the left with the rocker mechanism and, during this movement, will come against the roller 64 and be swung outwardly away from the axis of rotation of the rocker mechanism. This abrupt swinging or lifting action continues on each stroke of the mechanism until the lever has been brought to its extreme position to the left as shown by full lines in Figure 1. During the latter portion of this movement the roller 64 will be engaged by the arcuate bottom surface of the 'shoe 61- so' that the lever will not swing the rocker mechanism. The action of the rocker mechanism gradually shortens the stroke of the ring rail during the first strokes imparted bythe main cam 41 to the bunch builder and each stroke is shortened more than the next preceding stroke as the motion of the lever 54 results in the roller 64 being engaged more and more by the curved edge of the shoe 61 after gradually passing off of the end wall of recess 60. Thus the bobbin is-caused to fill out atthe bottom as shown at a rather than to have a. taper as indicated by dotted lines at a in Figure 6, this latter arrangement being the one usually produced by mechanisms now in use. The curvature of the active edge of the shoe 61 is such as to throw a shorter radius of curvature in contact with the roller 64 as able member to'reduce the loop and pay out 44heretofore mentioned. The lllilBIIl'LOShPOIf? tionsv of all of these. depressions are equidistant front thet'axis of rotation of the cam". Then the depression'42 goesover the roller 47, said roller: will move inwardly the full depth of the depression, as the depressions43 and 44 are angularathe roller 47 cannot move thereintothe full distances. Insteadtherolle-r will bridge the innermost portions: of the depressions as they pass thereover. Conse-o quently two of'the upward movements of the builder-arm 1 of thebunch builder will befor the full depth of the depression 42 while the other upwardmovements will stop before the hill depth is reached.

' By providing-the regularly spaced points 40 011 the cam .39 and utilizing'preferably nine of these points, (although this number is not essential): a more rapid crossing'ofthe yarn wound on the quill results during the building of the bunch and in consequence thereof, the bunch will adhere moresecurely' to the quill than would otherwise be possible. I

F or thepurposeof effecting an'adjustment betwen' the trip-lever 31 andthe arm 34, an

adjusting sore-W65 may be extended into the lever 31 so as to "constitute anadjustable stop for thearm 34. I1

What is claimedis: 1. Meehanismof the class described including a builder arm mou-ntedlfor oscillation, a member movable thereon, a builder chain con- 1 nected tothebuilderarm, cooperating means on the builderarinand member for forming a loop in'the chain, means for oscillatingthe builder arm, means actuated by the oscillation of the builder armfor shifting the movthe chain, a'bobbin former rocker mechanism, a connection between said mechanism and the chain,and means for automatically v shifting said connection relative to the rocker mechanism while-the chain is being paidout,

thereby to retard the action of the rocker mechanism; I

2.'Mechan1sm' of the class described 111- eluding a bunch builder arm mounted for oscillation, a member movably'mounted thereon, a builder chain{coi1nected to the builder arm, means carr ed by the memberv and build-- in arm for maintaining a loop in the chain, separate cams, means onthe movablemem her for engagement'by one of the cams to osciilate the builder arm, means. actuated by ing the I movable member to 1 reduce the loop lease the cam engaging means from active I the oscillation of the builder arm for shiftcooperationwith its cam, means carried'by the builder arm for engagement and actuation by the other cam following said release, thereby to oscillate the builder arm at a dif- 5 ferent speed, a bobbin former rocker mechanism, a shiftable connection between said mechanism and the chain, and means for antomatically advancingsaid connection While the chainris being paid out, thereby to retard the movement of the former mechanism.

' '3. Mechanism of the class described ineluding a bunchvbuilder arm mounted for oscillation, a member movably mounted thereon, a builder chain connected to the builder awn-means carried by the member and build er arm for maintaining a loop in the chain, separate cams, means. on the movable member for engagement by one of the cams to oscillate the builder arm, means actuated by the oscillation of the builder arm for shifting the movable member to reduce the loop in the chain and pay out the chain and to release the cam engaging means from active cooperation with its cam, means carried by thebuilder arm for engagement and actuation by the other cam following said release, thereby to oscillate the builder arm at a difi'erent speed, a bobbin former rocker mechanism, a shiftable connection between said mechanism and the chain, and means actuated by the movement of-the rocker mechanism as the chain is paid out for variably advancing the vconnectiorr between said mechanism andrthe chain thereby to variably retard the movement of the rocker mechanism While the chain is being paid out. 7 '4. Mechanism of the class described including. a bunch builder arm mounted for os cillation, a member movably'mounted there- 40 on,'a builder chain connected to the builder arm, means carried by the member and builder arm for maintaining a loop in the chain, separate cams, means on the movable memher for engagement by one of the cams to oscillate the builder arm, means actuated by the oscillation of the builder arm for shifting the movable member to reduce the loop in the chain and pay out the chain and to release the cam engaging means from active cooperation 5 With its cam, means carried by the builder arm for engagement and actuation by the other cam following said release, thereby to oscillate the builder arm at a different speed, a bobbin former rocker mechanism, a lever fulcrumed thereon, an arm extending from the lever engaging, the chain, an adjustable shoe carried by the lever, and fixed means in I the path of the lever and shoe for advancing the lever arm relative to the rocker mecha- I31) nism at variable speeds While the chain is be ing paid out, thereby to variably retard the movement of the rocker mechanism. 7

In testimony that I claim the foregoing as my own, I havehereto aflixed my signature. 7 JESSIE LEE LYLE.

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