US1535729A - Builder mechanism for yarn winding and spinning machines - Google Patents

Description

April 2%, '1 @259 H. A. LEONARD BUILDER MECHANISM FOR YARN WINDING AND SPINNING MACHINES Filed May 20, 1924 3 Sheets-Sheet 1 J/ITTOENEY April 28, 1925. 1,535,729

H. A. LEONARD BUILDER MECHANISM FOR YARN WINDING AND SPINNING MACHINES Filed May 20, 1924 3 Sheets-Sheet 2 I 1 a A 1/ :7 1;-

fillllllllllllllll lllllllllllllllilll r H. A. LEONARD BUILDER MECHANISM FOR YARN WINDING AND SPINNING MACHINES Filed May 20. 1924 3 sheets sheet 5 //v VENTO R g: a. Y BY WW @To RNE Y Patented Apr. 28 1925.

UNITED STAT OFFICE;

KERRY A. LEoNARnor irornnnnni Massmneserms; ASSTGNFOfi"TO serene can POERATIUN, on Hermann, ivmssrrcn'usntr'rs; A cert-generics anaem a.

. 311 m MECHANISM FOR; YARN WINDING AND SPTI'NNINKG MacHrNEs.

Application filed May 20,-

Th al zlwizom itmag cmwewt:

Beit known that I, IIARRY A. LEONARD, a citi'zeni of the United States, residing at Hopedale, inthe county ofWorcester and State of Massachusetts, have invented an Improvement in Builder Mechanisms for Yarn finding and Spinning Machines, of which the following description, in connecvtion with the accompanying drawing-s is specification, like characters on the drawings representing like parts. This-invention relates to yarn inding or spinning machines, and more particularly tothe builder mechanisms used in such machines for laying yarn uponyarn receivers or bobbins. r

In Winding: yarn upon yarn receivers'or bobbinsrvv hichare to be used-in so called feelerc ilooms ;it is: desirable to preliminarily wind p uporrthe yarn receivers or bobbins sufficient yarn: to insure the laying of a complete length of 'fillingin the shed on the final picle of the shuttle priorto replenishment.

2 referred to as bunches and are designed to cooperate with the feeler in fillingqreplen'ishment or feeler looms to call for a change in filling When that in the active shuttle has become substantially exhausted; so Manyvar-ieties' of mechanisms have hereto= fore been suggested for placing such preliminary windings ori bunches upon the bobbins before commencing uthe regular Wind ingsg but these have been of complicated construction and not readily applicable to the ordinary builder mechanism Which a usually consists of a builder cam and a builderi arm connected by a flexible chain or strap to the yarn guiding means;

(Due ofwthe objects of the present inventime iswtoQprovide a bunch builder mechanisnr which may be associated readily ithas builder mechanism of usual construrtiom now: in common use Without any material alteration thereof and wherein: the; bunch builder is ofr simple construction:

l/V hen a set ofa yarlrreceivers or bobbins have'been fully" Wound With yarrn it is now the common practice to stop the machine for GIN l hesepreliminary windings are frequently 192 a seei ianm vise lbw a do-fling, that is, to replace the full bobbins with empty ones prlor to again commencing the Wmdm operation, and an important feature of the present invention therefore" consists'of; means associated With the reg ular builder arm for throwing into action the bunch builder mechanism prior to starting themachine after dotting, and: automatically render the bunch builder mechanism inoperative when the bunch hasbeen completedto lay the regular traverse of yarnon the yarn receiversor bobbinstocomplete the windings.

The various novel features and new' comblnat ion of parts comprised by the; present invention ill best be made clear from" the I following descri tion; and the; acco1npanying drawings; o one good practical form thereof, it being understood that the details may be varied ithinthe true scope of the inventionas defined by the: claims. The invention Will conveniently be described in connection With anordinary spinningmachine whereiir the yarn is spun and then Wound upon the receivers or bobbins, but the invention'is obviously not restricted to use With such machines but may be ad vantageously employed" in connection with other types of yarn winding machines.

Inthe drawings: Fig. 1 isa perspective-view of a machine containing the present invention; some of" the parts of the machine being omitted for thepurpose of clearness of illustrationgj V Fig. 2 is; a side elevation, some ofthe parts being shown insection, of a builder motion containing the present: invention; Fig. 3-is a plan View; u 1

Fig. 4 is a front VlGW of thefbuilderarm and bunch builder* on an enlarged scale; some of the, partsbeing: shown in section; and

of Figl 3; a a y i v The invention is:- show-11* as applied to r the 1 builder mechanism of an ordinary spinning Fig- 5 isa cross-section-on tlie line 5- 5 deemed necessary to illustrate the entire spinning machine except in so far as the present invention is associated with the details thereof, because such machines are now well known,

The end frames 1 of the machine, Fig. 1, are connected by the usual cross-ties 2,-and' on the rotating spindles.

Extending from the frame ofthe 'machine, as shown, from the cross-piece 2 is a bracket 8 on which is mounted a rock shaft 9having an arm 10 on the end of which rests a shoe 11 ofthe. ring rail lifter rods 12 whereby as the rock shaft 9 is rocked, the ring rail would be given. its traversing movements longitudinally of the yarn'receivers or bobbins. The rock shaft 9 is provided with an arm 13 carrying a weight 14 which normally tends to impart a liftingmovement to thering rail, as usual.

Secured to the rock shaft 9 is the segment arm 15 having connected thereto the flexible member or chain 16 which extends over a guide-pulley 17 mounted on a bracket 18 carried by the machine frame and from thence downward to the builder arm 19 where the flexible member or chain 16 is secured to the usual drum 20 mounted for rotative movement upon the builder arm.

The drum 20 has associated therewith the worm wheel 21 which engages a worm 22 mounted as usual on the builder arm and actuated by the pick wheel 23 as the builder arm is raised and lowered. In the present instance, the pick wheel 23 is given its step' by-step movement by a pawl 24 mounted on' the rocking arm 25 connected at one end to a fixed part of the machine frame by means of a rod 26. The builder arm 19 carries a pin or roller 27 which during regular traverse engages the periphery of the main traverse cam 28. The builder arm 19 is mounted for rocking movement about a center 29, the construction being such that during regular traverse of the builder mechanism, the builder arm will be raised and lowered by the combined action of the weight 14 and the main traverse cam 28 to lay the yarn upon the yarn receivers or bobbins by regular traverse, and during such movement of the builder arm the pick wheelis actuated to let back on the flexible member or chain 16, thereby laying the'yarn upon the yarn receivers with a traverse that gradually approaches the top'or end portions of the yarn receivers or bobbins. The mechanism so far described may be of usual construction and is well understood by those familiar with builder mechanisms.

In accordance with the present invention, the bunch builder comprises coacting elements which may be brought into cooperative relation for building the bunch under manual control of the machine attendant, and then automatically moved out of coacting relation when the bunch is completed to permit the main traverse winds to be laid upon the yarn receivers or bobbins without a jump being introduced between the completion of the bunch and the commencement of the main service wind. The main portions of the bunch builder coacting memhere are mounted upon the builder arm and comprise a cam, shown as on the builder arm, movable to and from operative position, and such main portions of the bunch builder are constructed and arranged so that they may be applied to the regular builder arm now in ordinary use without material change in the details thereof.

Mounted upon the builder arm 19 is a frame 30 which may be appropriately secured to the builder arm by any approved or usual means, and at each end of the frame 30 are the laterally projecting bearings 31 which afford support for a worm shaft 32 carrying a worm 33, Fig. 2. As shown, the worm shaft 32 is journalled in bearings in the portions 31 of the frame and the worm 33 is disposed between such bearings. Secured to one end of the worm shaft 32 is a bevelled gear 34 which meshes with the corresponding bevelled gear 35, the latter of which is mounted on the axial support 29 of the builder arm 19 and is continuously driven from any suitable source by a train of mechanism, which in the present instance comprises the sprocket chain 36 which passes about a sprocket wheel on the axial support or shaft 29 and about another sprocket wheel 37 mounted on a shaft 38 carried by a cross-member 39 of the machine frame. ()n the shaft 38 is a similar sprocket wheel 40 about which passes the sprocket chain 41 which derives its motion from the sprocket wheel 42 mounted on the main traverse cam shaft 43, the construction being such that as the main traverse cam 28 is rotated, as usual, from a going part of the machine, the worm shaft will be continuously rotated. In order that the slack in the sprocket chain 41 may be taken up and the chain held taut and in operative relation with its coacting parts, the sprocket chain 41 passes over the idler or tightener 44 mounted on the machine frame or part 39 by means of an arm 45. The sprocket chain and sprocket wheel train of mechanism affords a good practical form for transmission of power to the worm shaft 32, but obviously, the worm shaft may be driven from any suitable source of power.

lation, the builder arm is entirely under the control of the bunch builder members, and as the bunch approaches completion the form of the bunch builder cam and its relacharacter or form of bunch may be Wound.-

In order to vary the size of the-bunch made by the bunch builder cam, the present invention contemplates means for limiting the amplitude of movement of the bunch builder cam as it travels back to its operative position as the operative trips the catch through the treadle 55. In the present instance, such movement of the bunch builder cam'to its operative position may be regulated by means of an adjusting bolt 67 which may be conveniently threaded through the front bearing member 31, as indicated in FigsoQ, 3 and 4:, and extend lnwardly to contact with the carrier 46 and limit its movement to operative position. To prevent accidental displacement of the regulating device 67, the latter may be provided with a set nut. 68 to maintain it in adjusted position.

During the bunch building operation, the contour of the bunch builder cam 51 will dictate the. character of the bunch, so that by changing the contour of the bunch builder cam the bunch may be given one or more travels to complete the bunch, and at the end of the bunch building operation the bunch builder cam will automatically move out of operating relation with its coacting -member 48 and regular traverse be assumed without jump of the ring rail. From the construction described it will be apparent, also, that the bunch' builder of the present. invention may be conveniently applied to the ordinary builder mechanisms .now in common use without materially altering the construction or details thereof, by simply applying to the bunch builder arm the'assoclated elements of the bunch builder cam and driving connections between the worm of the bunch builder mechanism and a going part of the machine.

It is sometimes desirable to give a slight movement to the ring rail, called jiggling, before commencing the formation of the bunch, or at any other stage of the winding operation, and in the pres-ent'instance of the invention, instead of the attendant placing his foot upon the treadle 55in depressing the ring rail for dotting, he

The trip bar 57 may ordinarily be returned to its initial position by the spring 63 of the worm engaging catch, but it desired the arm 57 may be assisted in this movement by aspring such as 57*.

WVhat is claimed is:

Claims.

1. In a builder mechanism, the combination of yarn guides for directing yarn to yarn receivers, a builder arm and regular traverse cam, connections between the builder arm and yarn guides, a bunch builder member mounted on the builder arm and normally maintained in an inoperative position, a manually operated trip mounted on the builder arm for releasing the bunch builder member that it may move to bunch builder position, and means for automatically returning the bunch builder member to inoperative position on completion of the bunch.

2. In a builder mechanism, the combination of yarn guides for directing yarn to yarn receivers, a builder arm and regular service cam, connections between the builder arm and yarn guides, a bunch builder cam mounted on the builder arm for movements to and from operative position, a member connecting with the cam on the builder arm for building the bunch, and means for moving the bunch builder cam on the builder arm out of coacting relation with said member when thebunch is completed that the yarn may be laid upon the receivers thereafter with regular service traverse.

3. In a machine. for winding yarn upon yarn receivers, the combination of a main traverse cam and builder arm actuated thereby to lay th yarn upon the receivers with main service traverse, and a bunch builder mechanism for laying the preliminary windings on the receivers, comprising a bunch builder member mounted on and for move ment lengthwise of the builder arm, means for holding the bunch builder element in inoperative position during the winding with main service traverse, a manually operated trip mounted on the builder arm for freeing the bunch builder element for movement lengthwise oft-he builder arm into operative position, a second bunch builder element coacting with the member on the builder arm during the-bunch building operation, and means for automatically disengaging said members when the bunch is completed.

4. In a machine of the character described, the combination of a main traverse cam and builder arm, a bunch builder cam mounted on the builder arm, a member coacting therewith to build a bunch, means normally tendoperation of the treadle to permit the bunch builder members to assume cooperative relation, and means on the builder arm for automatically moving the builder members relatively into inoperative relation.

5 Ina msac'hiaieof the character described, the combination'of a main traverse cam, a builder arm, a bunch builder cam mounted on the builder arm, a bunch builder member coacting With said cam on the builder arm to build a bunch, a treadle mounted on the builder arm, a train of mechanism controlled by the treadle for effecting movement of the bunch builder cam and bunch builder mem ber into cooperative relation When the treadle is manually actuated, and means for moving the bunch builder cam and said member into inoperative relation when the hunch is completed.

(3. Ina machine of the character described, the combination of a main traverse cam, a builder arm, a bunch builder cam mounted on the builder arm, a bunch builder member coacting with said cam on the builder arm to build a bunch, a treadle mounted on the builder arm, a train of mechanism controlled by the treadle for effecting movement of the bunch builder cam and hunch builder member into cooperative relation when the treadle is manually actuated, a device for regulating the extent of said movement to determine the size of the bunch, and means for moving the bunch builder cam and said member into inoperative relation When the bunch is completed.

,7. In a machine of the character described, the combination of a main traverse cam, a bu1lder arm, yarn guldes connected to and I traversed by the builderz'arm, a bunch builder cam mounted upon the builder arm, a bunch builder member mounted for cooperating With the bunch builder cam on the builder arm to build a bunch, means for effecting movement of the bunch buildercam on. the

builder arm into cooperative relation Wltll the bunch builder member, and treadle means onthe builder arm for controlling movement of the bunch builder cam on the builder arm. I i

S. In a machine of the character described, the combination of a main traverse cam, a builder arm, yarn guides connected to and traversed by the builder arm, a bunch builder cam mounted. upon the builder arm, a bunch builder member for cooperating With the bunch builder cam 011 the builder arm to build a bunch, a worm on the builder arm, means for turning the worm, a carrier for the bunch builder cam, and means for causing; the carrier to be actuated by the Worm and to be moved by itto place the bunch 9; A bunch builder, comprising, combination a builder arm and connected yarn guides,coacting elements adapted to Wind a bunch on yarn receivers, treadle controlled means. mounted on the builder arm to move said coactm-g elements relatively into operative relation controlling the builder arm, and; automatic means for returningsaid coactin-g elements into inoperative relationship that service windings may be laid upon the yarn receivers. y

10. A bunch builder, comprising, in combination a builder arm and connected yarn guides, coacting elements adapted to Wind a bunch on yarn receivers, treadle controlled means mounted on the builder arm to move said coatcing elements relatively into operative relation controlling the builder arm, a regulator for determining the amount of relative movement of the coacting elements, and automatic means. for returning said coacting elements into inoperative relationship that service'windings may be laid upon the yarn receivers.

11. In a machine of the character described, the combination of a builder cam, a builder arnn-yarn guides connected to the builder arm, coacting elements adapted to be brought intoengagement to build a bunch, treadle controlled means mounted on the builder arm to cause said elements to be brought into engagement by manual operation of the treadle relative to the builder arm, and means for disengaging said elements When the bunch is completed.

12. In a builder mechanism, thecombina tion of a builder cam, a builder arm, coacting members adapted to actuate the bullder arm to effect Winding of a bunch, one of said members being mounted in fixed position and the other movable longitudinally, along the builder arm, a Worm mounted on the builder arm for moving said other member during the formation of the bunch, means for locking said other member in an inoperative position when the hunch is completed, and a trip mounted on the builder arm for freeing said other member for actuation by the Worm to commence Winding a bunch When the machine is started after dofiing.

13. In a builder mechanism, the combination of a builder cam, a builder arm, coacting members adapted to actuate the builder arm to effect inding of a-bunch, one of said member, and a trip mounted on the builder arm for freeing said other member for actumeans'mounted on the builder arm for plac- 10 ing the cam on the builder arm in cooperative relation with its coactmg member for autonmtically winding the bunch when the machine is started after dofiing.

In testimony whereof, I have signed my 15 name to this specification.

HARRY A. LEONARD.

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