US2131470A

US2131470A - Yarn winding machine

Info

Publication number: US2131470A
Application number: US51567A
Authority: US
Inventors: Bowden Walter Henry
Original assignee: Individual
Current assignee: Individual
Priority date: 1934-11-28
Filing date: 1935-11-26
Publication date: 1938-09-27
Anticipated expiration: 1955-09-27

Description

Sept. 27, 1938. W. H. BOWDEN y YARN WINDING MACHINE Filed Nov. 26, 1935 y 2 Shets-Sheet l Sept. 27, 1938, W, H, Bowl-DEN 2,131,470

YARN WINDING MACHINE Filed Nov. 2e, 1955 2 sheets-sheet 2 Wol-"er )'(enf Bowdsr N V NTOE.

Patented Sept. 27,1938

UNITED stares YARN WINDING MACHINE Y Walter Henry Bowden, East .Geelong Australia Application November 26, 1935, Serial No. 51,567 In Australia November 28, 1934 Claims.

This invention relates to machines for winding yarn on to spools or bobbins helically in layers of repeatedly changing direction.

One object of this invention is to provide a 5l yarn winding machine in which the tension on the yarn does not increase as the diameter oi the spool or bobbin increases, thus obviating the risk of varying the thickness of the yarn.

Y v A further object of this invention is to provide V a yarn winding machine in which chafing of yarn during its travel through moving guide means is minimized.

A still further object of this invention is to provide a yarn winding machine in which the 151` spools or bobbins are supported without the aid of holding means which would retard their removal from their supporting axles,

Another object ofthis invention is to provide a simple and eicient yarn winding machine which occupies small iloor space.

A still further object of this invention is to provide a yarn Winding machine which is so compact and accessible that each operator may closely supervise the Winding of a large number j of spools or bobbins, repair any breaks, and re move completed spools or bobbins with minimum loss of time.

An improved yarn Winding machine, according to this invention, includes a drum adapted to.

said slipper, and a projection from each slipper engaging the said undulating slot or groove. The number of spools or bobbins which may be wound simultaneously is relative to the size of the drum and the size of the wound spools orrcheeses and the shape of the guide groove is such that each varn guide is recip-rocated one or more times during each revolution of the drum.

' Yarn extends from a reciprocating guide to a spool or bobbin and meets the exterior of the lat- 5u ter adjacent to its point of Contact with the drum so that the angle of the yarn between these points does not vary and the tension on the yarn remains constant from the commencement to the completion of Winding.

But in order that the above and other features (oi. 24a-,355)

of this'invention may be more readily understood,

a practical machine constructed in accordance l with this invention Will now be rdescribed withY reference to the accompanying drawings in whichz- Q l 5i Fig. l is a perspectivevew of a machine arranged to Wind eight cheeses simultaneously. Fig. 2 is a sectional plan of the grooved drum K and adjacent parts.

Y Fig.` 3 is a front elevation of a grooved drum. 10';

Fig. i is' a detail side elevation showing part of the grooved drum and one of the Winding units. Fig. 5 is a detail plan View of part of the grooved drum and one of the Winding units. 1:5

Fig. 6 is a detail side elevation showing part of the grooved drum and a Winding unit for conical spools or bobbins. v

Fig. 7 is a front elevationof a drum having a larger diameter than that shown in Fig. 3. 29: i'

Fig. 8 is` a detail view of roller means engaging the grooved drum.

The machine may be supported on Aany suitable framework such as a pluralityof legs II connected by transverse braces IIa. A plate I2 is 25 iixed to the vupper ends of the frame uprights: I I and a tab-le I3 is supported above plate I 2, by

stays I4. l I

A drum I5 located between the plate I2 and table i3 is xed on a vertical shaft I6 which 30, may be supported in any suitable manner. Shaft i6 carries a disc Il the periphery of which contacts with a friction plate I8 that is fixed on a shaft I9 and Vis revolved by a belt 20 from an electric Vmotor 2l. Disc Il is lfixed. on shaft I6 '3.5, in any desired position by means of a set screw (not shown). By adjusting the position of disc il along shaft It relatively to plate I8, the speed of shaft I6 and so of drum I5 may be adjusted to suit the nature of theyarn being Wound, the .40 rotation being slower for tender yarn than for tough yarn. Y

Each stay I4 constitutes a guide rail for a slipper 22 slidably supported thereon. A projection such as a stud 22a extends from each slipper to 45 engage an undulating slot or groove 23 in drumV I5. Each said projection 22@L may carry an antifriction roller as 22b (seerFig. 7) of` bre or synthetic resin r other suitable material.

The slot or groove 23 is of such 'shape that it 50 is adapted to reciprocate each slipper 22 a dis--K tance equal to the length of each Winding. With a small drum as in Figs. 1 to 3 the shape of the groove will be such that each slipper is reciprocated once during each revolution but with a 55 larger drum the number of reciprocations is increased proportionately thus with a drum three times the size of that shown in Fig. 3 the shape of the groove is such that each slipper will be reciprocated three times during each revolution of the drum (see Fig. '7).

Each slipper 22 carries a yarn guide 24 through which yarn travels from a supply source to a winding spindle.

Axles 25 are supported at spaced apart positions around the drum I5 so that an axle is located a suitable distance from each rail I4. Each said axle is adapted to support a spool vor bobbin 26 so that its face is parallel with the face of drum I5. When the spool or bobbin is cylindrical (Fig. 4) the axle is Vertical and when the spool or bobbin is conical (Fig. 6) the axle is suitably inclined. Yarn from each guide 24 meets the exterior of the associated spool or bobbin at a point adjacent to the point of Contact with the drum I5, the angle of feed of the yarn and the distance between the said guide and the point at which the yarn meets the exterior of the spool or bobbin remaining constant, or nearly so.

Each axle 25 rises from an angularly shaped lever 28 to which it is xed at such a position that it may be swung toward or from the drum I5, at will. The inner end of each lever 28 is pivotally connected to the upper face of the plate I2 and its outer end 28a constitutes a handle. The pivot pin 29 of each lever 28 extends through the plate I2 and carries a friction element comprising a spring 30 and a tension nut 30a which is adjusted so that lever 28 is held against free movement and so that the exterior of the spool or bobbin 26 or the package associated therewith is yieldingly held against the periphery of the drum I5. As the diameter of the package associated with each axle increases, the axle is moved outwardly and theV exterior of the package is held in contactv with the drum in such manner that the tension on the yarn remains constant.

Cops as 32 from which yarn is drawn as it isV wound are supported on pins which rise from table I3. Y

A standard 33 which rises from the centre of table I 3 carries arms 34 which support suitable yarn guides and tension devices. Each guide comprises a loop 3 6 and each tension device comprisesthree rollers 35 supported on pivoted arms 35a in such manner that their relative position may be varied to adjust the tension on the yarn being "Woundl j The diameter of drum I5 determines the speed iat which the spools 26 are revolved, and also the rate of travel of the slippers 22. With a small drum up to say one foot in diameter the guide groove 23 is arranged to reciprocate each slipper 22 once in each revolution (see Fig. 3). With a drum of larger diameter-the number of reciprocations will increase` inapproximate ratio thus with a drum three feet in diameter the shape of the guide groove will be such that each slipper is reciprocated three times in each revolution (see Fig. '7) The number of winding units actuated by Aeach drum is governed by the space occupied by such unit and the size of the wound spools or bobbins. A drum about one foot in diameter may actuate eight winding units each adapted to wind a spool or bobbin up to 5 inches in diameter while a drum three feet in diameter may actuate twenty-four winding units and so on.

In operation, yarn from each cop 32 is drawn through a guide 36, around a set of tension rollers 35, under a guide hook 24 and thence to a spool or bobbin 26 about which it is Wound in helical layers of constantly changing direction. It will be apparent that by means of levers 28 any spool or bobbin may readily be swung to an inoperative position to enable a break in the yarn to be repaired or a completed spool or bobbin to be removed, without in any way interrupting the winding of other spools or bobbins. Y I` claimf- 1. In a winding machine, a drum, a vertical shaft supporting said drum, means to rotate said shaft, lixed framing above and below said drum, upright guides fixed at each end to said framing in spaced relationship around said drum, an undulating cam recess in said drum, a reciprocatable slipper on each guide, means on each slipper to engage the said cam, an axle for a winding spool associated with each upright guide, means to support each said axle so that the winding spool supported by it or a package on said spool may be arranged to frictionally contact with the said drum in such manner that the line of contact is parallel with the guide Vwith which it is associated, and a yarn guide on each slipper arranged to direct yarn to a spool or package adjacent to its point of contact with said drum.

2. In a winding machine, as claimed in claim 1, means whereby each axle support is pivotally mounted relatively to. fixed framing below the drum in such manner that as the diameter of a package about the axle increases, said axle moves in an arcuate path away from the upright guide with which it is associated.

3. In a yarn winding machine, as claimed in claimV l, means whereby each axle support is pivotally mounted relatively to'xed framing and friction means arranged relatively to said pivot to hold said support so that it may be displaced when the diameter of the package increases sufciently to overcome the resistance of said friction means.

4. In a yarn winding machine, as claimed in claim 1, an axle support in the form of. a bent lever, means whereby said support is pivoted near its bend relatively to fixed framing, friction means arranged about said pivot to contact with an adjacent xed member and means to adjust the pressure exerted by said friction means whereby the said lever is held in operative position so that it may move when the pressure exerted by the friction means is exceeded by the pressure exerted on a package supported by said axle.

5. In a yarn winding machine, as claimed in claim 1, an axle support in the form of a bent lever, means whereby saidsupport is pivoted near its bend relatively to iixed framing, the axlebeing supported at one end of said lever and the other end of the lever projecting as a handle for control purposes, friction means arranged about said pivot to contact with an adjacent fixed member, and means to adjust the pressure exerted by said friction means whereby the said lever is held inoperative position so that it may `move when the pressure exerted by the friction means is exceeded by the pressure exerted on a package supported by said axle.

WALTER HENRY BOWDEN.