US1727884A - Winding machine - Google Patents

Description

sept. 1o, 1929. C. c. JEssl-:N 1,727,884-

wINDING MACHINE Filed Aug. 27, 1927 Patented Sept. 10, 1929.

. UNITED STATES CHARLES C. JESSEN, OF IPASSAIC, NEW JERSEY, ASSIGNOB.

PATENT oFFIcE.

T NAPON RAYON COB- PORATION, 0F CLIFTON, NEW JERSEY, A CORPORATION 0F NEW JERSEY.

'WINDIN G MACHINE.

Application led August 27, 1927. Serial No. 215,803.

This invention -relates to machines for winding yarn into packages 1n wh1ch the windings are traversed around a singleaxis. The principal object is to provlde a simple mechanism requiring no special sklll 1n its control and operation whereby compact and stable packages of the stated kind can be formed.

In the drawings,

Fig. 1 is a side elevation of one complete winding unit; g

Fig. 2 is a front elevation of the upper part of such unit; and

Fig. 3 is a plan.

Supporting means is in part adorded by a fixed frame structure 1 in which may be suitably journaled on a horizontal axis a drive wheel 2 constantly rotated. Another part of such supporting means is a forked upstanding carrier 3 fulcrumed on a shaft 4 which is fixed by a set-screw 5 in the forwardly projecting ends of a bifurcated bracket 6 projecting from and in effect forming a part of frame l, said carrier having journaled therein the shaft 7 of the yarn traverser which comprises with said shaft the cylindrical hollow traverser proper or drum 8, formed as two counterpart parts with an intervening sinuous space or slot 9,

3o and a wheel 10, said parts of the traverser and the wheel being all fixed on the shaft.

On the tilting of the carrier one way the traverser, by its wheel 10, encounters the wheel 2 so as to be rotated thereby, and on tilting thereof the other way the carrier, also by said wheel, encounters a brake member 11 projecting from and fixed on shaft 4. The brake member 11 has an arm 11a projecting under an arm of vbracket 6 and the latter to permit adjustment of said member to be effected toward and from the wheel.

The carrier 3 serves in the example to f maintain the core of and hence the package being wound above the drum as well as a sup ort for the traverser, the uper ends of its fork extremities being themselves forked or formed with upwardly open crotches or guideways 12 affording bearings for the ends provided with a set screw 1lb taking against' of the spindle 13 of the core 14, the latter taking between said extremities and so being confined against endwise movement. The core (and the package 15 while being formed) has frictional contact with and so 5f is rotated by the rotated drum of thc traverser, being preferably held under some pressure against the latter by a gravityactuated forked presser or follower 16 fulcrumed on a rock-shaft 17 journaled in a 60 bracket 18 projecting from and in effect forming a part of frame 1, the ends of the follower arms then bearing on the ends of spindle 13; such follower may be shifted to the dotted-line or idle portion in Fig. 1. Shaft 17 in effect forms part of a lever structure which controls the shifting of carrier 3 to move the traverser from one to thel other of the parts 2 and 11 and also the shifting of the follower into and out of its working position (full lines, Fig. 1), thus: on the shaft 17 are fixed an overlying forwardly extending arm or handle 19 and an eccentric 2Q, the handle having a lug or toe 19a projecting forward under a suitable 7- abutment 16a of the follower; and embracing the eccentric is an eccentric strap 2la formed on one end of a link 21 which passes freely through an arm of the carrier and has a nut 22 screwed on its free end and a spring so 23 coiled about it and interposed between said carrier arm and a shoulder 21". The means to deliver the yarn to be wound 1n accordance with this invention is arranged beyond the drum with reference to the core, What form it takes is not especially material, but in the example it comprises the supply, represented as a short section of tubing 23 having the yarn wound thereon at 24 and hung loosely and so as to shift rota- 90 tively on a stud 25 projecting from the frame, tension means 26, and a guide 27 between the tension means and drum.

When the handle .19 is elevated (dottedline position) the presser 16 is held elevated by lug 19a', so that the crotches 12 are cleared for removal of a full package and introduction of an empty core; and the carrier stands shifted to the left, under pressure of the springs, so that the traverser wheel 10 100 CII is against the l brake-member 11 and the trave'rser at standstill, spring 23 being compressed. An empty core is placed in the crotches with a few turns ot the yarn A hand-wound thereon, and the handle lowered, resulting in presser 16 bearing down on the core and in carrier 3 being shifted to bring the traverser wheel against the rotating Wheel 2; it is desirable that the rotating of the traverser and hence of the core should not start until the core is gripped between the presser and traverser, so the stated shifting of the carrier is delayed to occur until after the presser is seated on the core by setting back nut 22 so that it does not cause such shitting until the presser isso seated. The winding now proceeds with a l, traverse, as will appear, and when the package has been wound to somev predetermined extent the attendant raises the handle, resulting in the traverser and the package being brought to a standstill and then the presser elevated so that the package can be removed from the crotches. The normal position ofthe handle is down, its weight as well as that of the presser then acting to hold the package in good rictional contact with the traverser.

The slotted traverser is both the means to rotate the core by frictional contact therewith and the means for traversing the thread which, as shown in `Fig. l, extends through slot 9 from the yarn delivery means at one side of the traverser to the core at the opposite side. It is not new to use a sinuously slotted traverser for traversing the yarn (by engagement of the yarn in the slot) with respect to the core while the winding is proceeding. But, so far as I am aware, it is new to cause the core, held bearing against such a traverser, to be driven frictionally by the traverser. As the yarn sweeps back and forth in traversing its point of incidence with the package lags behind the particular point at which it is issuing from the slot, as indicated by line a--b in Fig. 2 where the traverse then occurring is assumed to be to theright. The degree of this lag or Obliquity (with respect to the axis of either the core or traverser) increases as the package grows, because the distance between the point of issuance of the yarn from the traverser slot to the point of its incidence with the package (as viewed in side elevation, Fig. 1) increases as the package grows; and this results in the desirable advantage that since the effective traverses reduce in length as the package builds up the latter is formed with conical ends. The cone formed at each end will be moreover appreciable, to the end that the stability of the package will be greatly increased, if the yarn elivery means is remote from rather than close to the line of contact between the traverser. and package,

as where in the example such means is beyyarn windings removably arranged in said guideways, a presser normally holding the core in peripheral friction-driven contact with the traverser and movable in said means to permit removal of the core from the guideways, and yarn delivery means from which the yarn extends through said slot to and around the core.

2. In combination, supporting means, a constantly rotated driving member therein, a brake opposite the periphery of said membcr, a part of said means being a carrier movable between and toward and from said brake and member,'a revoluble driven member journaled in the carrier and movable therewith in one direction against the driving member and in the other against the brake, and a core for the windings held in peripheral friction-driven contact with the driven member and revoluble in said means.

3. In combination, supporting means, a constantly rotated driving member therein, a brake opposite the periphery of said member, a part of said means being a carrier movable between and toward and from said brake and member, a revoluble driven member journaled in the carrier and movable therewith in one direction against the driving member and in the other against the brake, a core for the windings held in peripheral friction-driven Contact with the traverser and revoluble in said means, and means normally urging said carrier in one direction in which it is movable and movable to shift the carrier' in the opposite direction.

4. In combination, supporting means, a constantly rotated drivin member therein, a brake opposite the perip ery of said member, a part of said means being a carrier movable between and toward and from said brake and member, a revoluble driven mem- 5. In combination, a fixed supporting structure, a constantly rotating driving member journaled therein, a driven member, back-and-forth movable means arranged in said structure and in which said driven member is journaled and by which it is adapted to be moved into and out of friction-driven engagement with the driving member, said means having guideways crossing the periphery of the driven member, a core for the yarn windings journaled in the guideways, and a presser movably arranged in said structure for holding the core against the driven member, said presser being adapted to be retracted from the core by said means on moving the latter to retract ltnhe 'driven member from the driving mem- 6. In combination, a fixed supporting structure, va constantly rotating driving member journaled therein, a driven member, back-and-forth movable means arranged in said structure and in which said driven member is journaled and by which it is adapted to be moved into and out of friction-driven engagement with the driving member, said means having guideways crossing the periphery of the driven member, a core for the yarn windings journaled in the guideways, and a presser movably arranged in said structure and holding the core against the driven member, said means in its movement to withdraw the driven member from the driving member being adapted to retract the presser from the core after the driven member clears the driving member.

In testimony whereof I aix m signature.

CHARLES C. ESSEN.

Images