US1188103A - Yarn spinning and twisting apparatus. - Google Patents

Description

A. E. RHOADES. YARN SPINNING AND TWISTING APPARATUS.

APPLICATION FILED .IUNE 4,1914.

' Patented June 20, 1916.

2 SHEETSSHEET l- Inventor.

Witnesses.

Tm: coLuMnm PLANOGRAPH c0., WASHINGTON, D. c.

A. E. RHOADES. YARN SPINNING AND TWISTINQ APPARATUS.

APPLICATION FILED JUNE 4,1914.

Patented June 20, 1916.

2 SHEETS-SHEET 2- 1,1 ,NNN.

Fig.3.

Inventor. Alon-g0 E.Rh0ud.es, y

Witnesses.

W& N Attys.

rm: coumam PLANOGRAPH co.. wAsmNuT N. n. c.

rear rim ALONZO E. BHOADES, OF HOPEDALE, MASSACHUSE-T'IEi, ASSIGNOR TO DBAIPER COM- PANY, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

YARN SPINNING AND TWISTING APPARATUS.

Specification of Letters Patent.

Application filed June 4, 1914. Serial No. 843,068.

To all whom it may concern:

lie it known that I, ALONZO E. RHoAnEs, a citizen of the United States, and resident of I-lopedale, county of Worcester, State of Massachusetts, have invented an Improvement in Yarn Spinning and Twisting Apparatus, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to improvements in yarn spinning and twisting apparatus designed to effect the winding of a preliminary portion or bunch of yarn upon a filling carrier such as a bobbin and thereafter to lay a main or service winding thereon, bobbins so wound being particularly adapted for use in the shuttles of automatically replenishing feeler looms.

The preliminary winding or bunch lies in the path of the feeler and serves to actuate the same when the service winding is exhausted until the bunch has been reduced a predetermined amount so that it no longer engages the feeler, whereupon the latter is permitted to act to effect a change in the operation of the loom, such as the replenishment of the active shuttle or the stoppage of the loom.

The preliminary winding or bunch also provides a sufficient quantity of yarn to maintain the continuity of the filling when the transfer of bobbins in the active shuttle takes hlace.

It is essential. to the proper operation of the loom that the yarn shall draw off freely during the weaving operation and that the bunch shall be so built as not to obstruct the free drawing off of the yarn.

One of the objects of the present invention is to provide means for building a bunch which will present no obstacle to the free running of the thread from the filling car rier and this is accomplished in the preferred form of the invention illustrated herein by so constructing the bunch that the initial winding is made with a minimum traverse, the successive traverses thereafter being gradually increased during the upward movement toward the nose of the bobbin until the bunch has been built, thus forming a cone shaped bunch -which is merged into the service winding which is afterward wound thereupon.

In building a bunch of the character above described it is found that the usual gain of the winding will construct too large a bunch before the usual service winding is com menced.

Another object of this invention therefore is to provide means for increasing the gain during the bunch building operation which will be greater than the normal gain during the service winding but which will so effect the winding of the yarn upon the filling carrier that the bunch will be merged into the service winding without forming any substantial irregularity in the form of the filling carrier.

Other objects of the invention and the nature thereof will more fully appear from the following description and the accompanying drawings and will be particularly pointed out in the annexed claims.

In the drawings: Figure 1 is a front elevation of a portion of a spinning or twisting machine embodying my invention, Fig. 2 is a plan view of a portion of the mechanism which efiects the traverse of the yarn upon the bobbin and controls the extent of such traverse, Fig. 3 is an enlarged detail view of the mechanism for controlling the gain in traverse during the bunch building operation and which is merged into the usual traverse upon the completion of the bunch, Fig. 4: is a detail front elevation of the carriage and detent mechanism which controls the gain in traverse during the bunch building operation and is rendered ineffective during the service winding, and Fig. 5 is a detail sectional view taken on lines a, Z), Fi 1, looking toward the right.

One embodiment of the invention is illustrated herein in connection with a spinning or twisting machine in which the ring rail is raised and lowered to effect a traverse of winding upon yarn carriers supported by rotatable spindles, but it will be understood that this invention is adapted to other forms of spinning, twisting, or winding machines and that the spindles may be reciprocated vertically while the cooperating mechanism, such as the ring rail, cap, or flier frame is permitted to remain stationary.

The spinning or twisting mechanism may be of a usual construction and as illustrated herein comprises a spindle rail 1 carrying a series of rotatable spindles 2 adapted to support yarn receivers such as filling carriers, drawing or guide rolls 8 over which the yarn l is led to the spindles, a vertically reciprocating rail 4 provided with rings 5 and actu- 'ated through lifter rods 6 having enlarged lower ends or feet 7 with which the ends of rocker arms 8, coeperate, said rocker arms being provided with upwardly extending arms 9 connected together by a transmitting link 10, said transmittinglinks being actuated by'segments, 'not' shown, through the chains 11 and 12 andan intermediate controller, hereinafter to be described, which connect said segment with the builder arm.

The builder motion comprises a builder arm 13 pivotallymounted upon a shaft 14 and having a depending bracket 15 supporting, the shaft of a pick wheel 16 which is provided with a worm meshing with a worm gear 17 upon the shaft of a drum 18 upon v the chain 11 and is wound to cause the gain intraverseof'the winding upon the yarn receiver in the usual manner.

The. builder arm 13 is provided with a laterally projecting cam follower 19 which engages the face of a builder cam 20 which is mounted in the usual manner upon'the driven cam shaft 21. A pick pawl 22 suit ably secured to the machine'frame engages the pick wheel 16 in the usual manner.

,By the construction above described the rotationof the cam 20 imparts an oscillating movement to the builder arm '13 which through theconnections aforesaid causes the reciprocation of. the ring rall.

Upon each upward movement ofthe builder arm' the pick pawl 22v which engages the teeth of the" pick wheel 16 serves to rotate said wheel and through its worm and gear 17to windup the chainll upon the drum 18, so

- that the lowest position of the ring rail during successive reciprocations becomes gradually higher and higher and causes the formation of a cone shaped base of the yarn upon the yarn receiver. The mechanism thus described is of the usual construction.

3 The present invention comprises the introduction of controlling mechanism between the chain 11 which leads to the drum 18 and the chain 12 which leads to the segment. which operates the lifter rods, the controlling mechanism being adapted to cause afpreli'minary winding of the yarn upon the yarn receiverwithflan initially short, advancing and gradually increasing traverse until av predetermined,amount is wound and thereafter to effect 'a service winding of uniform traverse.

-The preferred form of. controller as illus- .trated herein includes an arm 23 mounted upon a Sblld24c projecting laterally from the lower end of a stand 25 which is suitably securedtothe underside of the main frame, the arm 23 having at its upper end a laterally extended-lug 26 upon which a lever 27 is pivotally mounted about midway of its length.

The lever 27 is connected to the chain 11 by a bridle consisting of a rigid link 28 connecting the upper end of the lever with said chain 11 and a flexible member such as a chain 29 connecting the lower end of the lever 27 with said chain or as shown in the drawing with a hooked end 30 upon the member 28. The lever 27 is provided, preferably adjacent to its pivotal point, with a laterally extending car 31 having an aperture in which the end 32 of a hook 33 is pivotally mounted, said hook 33 engaging the chain 12 which leads to the segment which operates the lifter. The lower portion of the lever 27 is adapted to engage a fulcrum 34 at the end of a slot in the stand 25 as illustrated in Fig. 3.

At the commencement of the bunch building and winding operation the mechanism is in the position illustrated in Figs. 1 and 3 at which time the axis of the lever 27 is substantially in alinement with the axis of the arm 23 and the lower portion of the lever 27 in contact with the fulcrum 34 the chain 29 being slack. Upon the downward movement. of the builder arm the upper end of the lever 27 will be drawn toward the left (Figs. 1 and 3) through the rigid connection 28, the lever 27 being rocked about the fulcrum 3% so that the movement of the arm 23 and the link 33 and chain 12 will be very gradual thus causing a close winding upon the base of the yarn receiver. When the lever 27 has, rocked about the fulcrum 24- until the chain 29 has become taut the movement of the arm 23 will be greatly increased since the bridle 28, 29 connecting the chain 11 with the lever 27 will at that time be in effect a rigid connection, the winding upon the yarn receiver will therefore be more freely distributed along the barrel of the yarn receiver.

When the builder arm is being raised the pick pawl 22 causes the rotation of the pick wheel 16 and of the drum l8 winding up a portion of the chain 11 upon said drum so that when the builder arm reaches its highest position and the lever 27 is restored to starting position said lever will not quite reach the position shown in Figs. 1 and 3 and the next winding upon the yarn receiver will start at a point slightly higher than that of the winding which next preceded it, thus forming a conical base for the winding upon the barrel of the yarn receiver. Upon each successive reciprocation of the builder mechanism the chain 29 will become less slack until at the conclusion of the bunch building operation it will be fully tightened and thereafter the bridle 28, 29 will act as a rigid connection between the chain 11 and the lever 27 to cause a uniform traverse.

It will be observed that by reason of the lost motion introduced through the controlling mechanism above described the first winding upon the bobbin barrel will be a short traverse of close winding (Which may or may not terminate in a traverse of looser winding.) The second traverse will start at a point slightly in advance of the base of the first traverse and will likewise comprise a close winding terminating in a looser winding upon the barrel of the filling carrier and so on until the bunch has been wound.

In the successive windings the amount of closely wound yarn will gradually be decreased and the amount of more loosely wound yarn gradually increased as the slackness in the chain is being taken up until at the end of the bunch winding the chain 29 becomes taut and the winding thereupon merges into the regular service winding upon the yarn receiver.

It has been found in practice that the winding of a bunch in the manner aforesaid with the usual gain will cause the building of too large a bunch and means have therefore been provided for causing a greater gain during the preliminary winding, that is the winding of the bunch, than the gain in traverse during the service winding. This mechanism as disclosed in the preferred embodiment of the invention illustrated herein comprises an additional pick pawl 35 which desirably may be adjustably secured at the end of an arm 36 carried upon a member 37 pivotally mounted upon a stud 38 on the frame of the machine, and is adapted to be retained in engagement with the pick wheel during the bunch building and to be removed from such engagement during the laying of the service winding. By adjustably securing the pick pawl 35 upon the arm 36 it may be raised and low ered so as to cause a greater or less rotation of the ratchet wheel 16 during the downward movement of the builder arm so that the extent of gain during the preliminary winding may be readily adjusted. The means for thus controlling the pick pawl 35 as illustrated herein comprises a projection 39 extended upwardly and laterally from the member 37 and adapted to engage the base 40 of a cutaway portion of a sliding carriage 11 which is adapted to be advanced as the chain 11 is wound up on the drum 18. he carriage 41 is provided with a downwardly extending base or ledge 42 which is adapted to engage the projection 39 when the preliminary winding is finished and by the depression of said projection to rotate the member 37 upon its pivot 38 and thereby remove the pick pawl 35 from engagement with the pick wheel during the surface winding at which time the projection 39 restsupon the lower surface 42 of the carriage 11.

The carriage 41 desirably may comprise a narrow plate provided withslots 43, 4a

adapted to receive studs i5, 16 projecting laterally from brackets 47, 18 suitably secured to the main frame, the studs 45, 16 being provided with springs L9, 50 adjustably secured thereon by suitable nuts and pressing against collars 51, 52 with sufficient force to retain the carriage in any position to which it may be adjusted by the builder mechanism.

The end of the carriage 4.1 is desirably provided with a downwardly depending car 53 to which is pivoted a member 54 which in turn is connected to a rod 55 having an offset portion 56 to permit the end of the rod 55 to pass through a sleeve 57 which is pivotally secured to an ear 58 projecting upwardly from boss 26 upon the end of the lever 23.

The end portion of the rod 55 is provided with collars 59 and 60 adapted to be en gaged by said sleeve upon a forward and backward movement respectively of the arm 23.

The collars 59 and 60 are adjustably secured upon said rod 55 in any suitable manner and in operation are so located that the forward movement of the arm 23, or to the left will cause the sleeve 57 to engage the collar 59 and advance the carriage slightly upon each oscillation of the arm 23 so that at the time the preliminary winding is completed the projection 39 will engage the lower surface 42 of the carriage 41. The collar 60 will be so adjusted upon the rod that the backward movement or movements to the right of the arm 23 will not cause the sleeve to engage said collar. The carriage will not therefore be retracted during the winding of the yarn upon the yarn receiver.

The operation of the device is as follows: The oscillation of the builder arm causes the raising and lowering of the ring rail to effect the traverse of winding upon the yarn receivers which are carried by the spindles. By reason of the winding of the chain 11 upon the drum 18 the lever 27 will not quite return to the position previously occupied at the commencement of the next preceding reciprocation so that the winding upon the yarn receiver will start at a point slightly farther upward upon each reciprocation than upon the preceding traverse. This action will continue until the lower end of the lever 27 no longer engages the fulcrum 3st at which time the chain 29 will be taut and the bridle comprising said chain 29 and the rigid member 28 will in effect be a rigid connection between the chain 11 and the lever 27.

It will be. observed that during the laying of the preliminary winding or bunch the closely wound portion will be gradually decreased and the amount of relatively loose winding increased because of the gain as the slackness in the chain 29 is being taken up until the chain 29 remains taut in the manall mechanisms falling 35" ner aforesaid. From this time on there will be no variation in the gain and the service winding will be laid in the usual manner.

At the commencement of the service winding the pick pawl 35 is removed from its engagement with the pick wheel 16 and the increase in gain in traverse is reduced to the usual amount instead of the double gain which is effected during the bunch building operation. I

When the yarn receiver has been filled the machine may be stopped in the usual manner and the yarn receivers doffed. The chain upon the drum 18 of the builder arm will thereupon be unwound and the parts restored to the position illustrated in Figs. 1 and As the chain 11 is unwound from the drum and the weight of the lifter rail and other parts retracts the arm 23 the sleeve 57 will engage the collar 60 and restore the carriage 41 to starting position.

It is to be understood that the embodiment of the invention disclosed herein is illustrative and is not restrictive and that various modifications may be made without departing from my invention. It is also to be understood that this invention is adapted for use in other connections than for raising and loweringthe lifter rail of a spinning or twisting machine and that the following claims are intended to embrace within their scope regardless of the detail constructions thereof or of the uses to which such mechanisms may be put.

Having thus described my inventionc what I claim as new and desire tosecure by Let ters Patent is:

1. In'an apparatus of the class described having a seriesvof spindles adapted to support yarn receivers and cooperating winding mechanism, means'for causing relative reciprocatory 'movement therebetween ineluding a builder arm having a constant stroke and means operated thereby to control therelative reciprocation of said members to effect a preliminary winding of yarn upon said yarn receivers with an initially short advancing and gradually increasing traverse until a predetermined amount is wound and thereafter to efi'eet a winding of uniform' traverse and adjustable means for causing a rapid uniform gain during the preliminary winding and a decreased uniform gain during the service winding.

2. In an apparatus of the class described havinga series of rotatable spindles adapted to support yarn receivers, a ring rail and means for reciprocating the same, including a builder arm having a constant stroke, means operated thereby to control the reciprocation of the ring rail to efiect a preliminary winding of yarn upon theyarn renary winding with a short ceivers with an initially short, advancing, and gradually increasing traverse until a predetermined amount is wound, and thereafter to eflect a service winding of uniform traverse and means cooperating with said builder arm to impart a uniform gain during the preliminary winding and a decreased uniform gain during the service winding.

3. In an apparatus of the class described having a series of rotatable spindles adapted to support yarn receivers, and cooperating winding mechanism, builder mechanism for causing a traverse of yarn upon said yarn receivers, including a builder arm having a constant stroke, means actuated thereby to cause a preliminary winding of gradually increasing traverse and means cooperating with said builder arm to cause a uniform gain during the preliminary winding and a decreased uniform gain during the service winding.

4. In an apparatus of the class described having a series of spindles adapted to support yarn receivers, a ring rail, rocker arms adapted to raise and lower said ring rail, a pivoted member connected to said rocker arms, a lever pivotally mounted upon said pivoted member and having a fixed fulcrum, a constantly actuated builder arm, means operable thereby to cause said lever to raise and lower the ring rail to form a prelimigradually i11- creasing traverse and a service winding of relatively long and constant traverse, means for causinga uniform gain during the preliminary winding and a decreased uniform gain during the service winding.

5. In an apparatus of the class described having a series of rotatable spindles adapted to support yarn receivers, a ring rail, :1 pivoted member connected to said ring rail, a lever pivotally mounted upon said member and having a stationary fulcrum, a builder arm having a drum, flexible means connected to said drum and having branches of different lengths connected to the ends of said lever, means adapted to rotate said drum upon each downward movement of the builder and means for rotating said drum upon each upward movement of the builder arm during a preliminary winding and means for disengaging one of said drum rotating means during the laying of a service winding.

6. In an apparatus of the class described 7 having a series of spindles adapted to suplength connecting to the ends of said lever, a pick pawl adapted to engage said ratchet upon each upward movement ofv the builder arm, a second pick pawl adapted to engage the said ratchet upon each downward movement of the builder arm and means for disengaging the last mentioned pick pawl during a portion of the winding.

7. In an apparatus of the class described having a series of spindles adapted to support yarn receivers, a ring rail, rocker arms adapted to raise and lower said ring rail, a pivoted member connected to said rocker arms, a lever pivotally mounted upon said member and having a stationary fulcrum, a constantly actuated builder arm having a drum with an actuating ratchet wheel, a flexible member having branches of unequal length connecting to the ends of said lever, a pick pawl adapted to engage said ratchet upon each upward movement of the builder arm, a second pick pawl adapted to engage the said ratchet upon each downward movement of the builder arm and means actuated by said pivoted member for disengaging said pick pawl during the laying of a portion of the winding.

8. A spinning machine comprising a frame, a series of rotatable spindles carried thereby, a ring rail, rocker arms adapted to raise and lower said ring rail, a pivoted member attached to said frame and connected to said rocker arms, a lever pivotally mounted upon said member and having a stationary fulcrum, a builder arm and means for actuating the same with a constant stroke, a drum, a ratchet wheel for actuating the same secured to said builder arm, a flexible member connected to said drum and having branches connected to the ends of said lever, a pawl adapted to engage said ratchet upon each upward movement of the builder arm, a second pawl, adapted to engage said ratchet upon each downward movement of the builder arm, pivotally mounted upon said frame and having an upwardly extending member, a carriage mounted upon said frame, means connecting said carriage to said pivoted member, and means upon said carriage adapted to engage the upwardly projecting member of said pawl.

9. In an apparatus of the class described comprising a series of rotatable spindles, and cooperating winding mechanism, means for effecting a preliminary winding and a service winding upon said yarn receivers including a builder arm having a drum and a ratchet wheel for actuating the same, a pawl for rotating said ratchet wheel upon each upward movement of the builder arm, a second pawl adapted to rotate said ratchet wheel upon each downward movement of the builder arm and having an upwardly extended arm, a carriage actuated by the builder mechanism adapted to engage said upwardly extending arm at the completion of the preliminary winding and thereby to remove and retain the last mentioned pawl from engagement with the ratchet wheel during the laying of the service winding.

10. A spinning machine comprising a frame, a series of rotatable spindles carried thereby, a ring rail, a rocker arm adapted to raise and lower said ring rail, a pivoted member attached to said frame and con nected to said rocker arm, a lever pivotally mounted upon said member and having a stationary fulcrum, a builder arm and means for actuating the same with a constant stroke, a drum, a ratchet wheel for actuating the same secured to said builder arm, a flexible member connected to said drum and having branches of unequal length connected to the ends of said lever, a pawl adapted to rotate said ratchet wheel upon each upward movement of the builder arm, a second pawl, adapted to rotate said ratchet wheel upon each downward movement of the builder arm, pivotally mounted upon said frame and having an upwardly extending arm, a carriage mounted upon said frame, means adjustably connecting said carriage to said pivoted member and means upon said carriage adapted to engage the upwardly projecting arm of said pawl.

11. In an apparatus of the class described having a series of spindles, a ring rail, and means for reciprocating the same, means operating to control the reciprocation of said ring rail to effect a preliminary winding of yarn upon yarn receivers on said spindles with an initially short, advancing, and gradually increasing traverse until a predetermined amount is wound and to thereafter effect a service winding thereon with a uniform traverse and a uniform gain in traverse comprising a pivoted arm, a lever pivotally mounted thereon, a bridle having a rigid member and a flexible member connected to the upper and lower ends of said lever, the opposite ends of said members being flexibly connected to the drum 011 said builder arm, a fulcrum for said lever adapted to cause slackness in the flexible member of said bridle at the commencement of each traverse of preliminary winding to cause a slow movement of said ring rail but so positioned that as the slackness of said flexible member is taken up and the more rapid final movement of each traverse of the preliminary winding will be successively increased until the lever is removed from said fulcrum and the preliminary winding merges into the service winding.

12. In an apparatus of the class described having a series of spindles, a ring rail, a builder mechanism and means for connecting said builder mechanism with said ring rail to reciprocate the latter, means operating to control the amplitude of reciprocation of said ring rail comprising a pivoted arm, a lever pivotally mounted upon said arm,-a bridle l avinga rigid member and a flexible member connected to the upper and lower ends of said lever respectively and connected at the opposite ends to said bullder arm and a fulcrum for sand lever adapted in cooperation With said rigid mem- ALONZO E. RHOADES. lVitnesses:

ROBERT JAMIESON, DAVID OSGOOD.

Copies 0! this patent may be obtained for five cent; each, by addressing the "Commissioner of Iatelts,

Washington, D. G.

Images