US1620571A

US1620571A - A corpora

Info

Publication number: US1620571A
Authority: US
Publication date: 1927-03-08
Anticipated expiration: 1944-03-08

Description

March 8,1927a A. E.- RHOADES ET AL YARN TENSION FOR WINDING MACEINES Filed Nov. 2, 1925 Braves-Hers. Alonzo E. Rhoudes Aflhur 5. do hnson SVMQW ATTys.

Patented Mar. 8, 1927.

UNITED STATES iszasu PATENT ALONZO E. RHOADES AND ARTHUR S. JOHNSON, OF HOPEDALE, MASSACHUSETTS, AS- SIGNORS 'IO DRAPER CORPORATION, OF I'IOPEDALE, MASSACHUSETTS, A CORPORA- TION OF MAINE.

YARN TEITSION FOR VENDING MACHINES.

Application filed November 2, 1925.

This invention relates to improvements in yarn winding machines more particularly of that type known as spoolers, in which the yarn is unwound from a yarn carrier, usually a bobbin, and onto a yarn receiver, usually in the form of a large spool.

The object of the invention is to provide efficient means for controlling the yarn as it passes from the yarn carrier to the yarn receiver and so that the yarn will be drawn oft from the yarn carrier without ballooning and in a regular, even manner and so that the requisite tension shall be applied to the yarn to prevent kinking and to insure the yarn being laid regularly and evenly upon the yarn receiver.

The object of the invention is further to provide a mechanism of this type in which the tension upon the yarn may be readily controlled and adjusted according to the con ditions.

The object of the invention is further to provide a mechanism of this type which will not interfere with the ready placing of the yarn carrier in, and removing it from, posi tion in the machine.

These and other objects and features of the invention will appear more fully from the accompanying description and drawings and will be particularly pointed out in the claims.

Since the general construction and operation of winding machines such as spoolers are well known and familiar to those skilled in the art, and since the invention relates only to certain features of such machines, it is only necessary here to illustrate and de scribe those portions of an ordinary type of winding machine or spooler which are necessary to a disclosure of a preferred form of the present invention.

In the drawings:

Fig. 1 is a transverse sectional view of a portion of a spooler sufficient to illustrate the application of the present invention.

Fig. 2 is a top plan view of the support for the yarn carrier and its connected parts.

Fig. 3 is an end elevation looking along the axis of the yarn carrier of the construe tion shown in Fig. 2.

Fig. 4 is a view in perspectlve of a roll such as employed in connection with the invention.

Only a small portion of a spooler is shown Serial No. 66,224.

comprising a part of one of the side frames 1, the spindle rail 2 and the rod 3 extending between the side frames, the usual traverse rod 4: and one of the spools 5 mounted upon a spindle rotated by one of the usual whirls 6.

As usual in these machines, a separate stand or support is provided for each yarn carrier and one such embodying the invention in a preferred form is here shown. This support or stand comprises two frame members 7 and 8 having longitudinal tongue and groove connections so that the frame may be extended longitudinally. Bolts 9 passing through slots 10 in the frame member 7 and then through the frame member 8 serve to hold the frame members in adjusted position. The frame member 7 at its inner end is formed into a yoke-shaped clamp 11 engaging the rod 3 and a set screw 12 passing through one jaw of the clamp serves to hold the support in fixed position with respect to the frame of the machine. The frame member 7 is also extended laterally to form a base 13 for a spindle 14 upon which is mount ed the yarn carrier herein shown as a bobbin 15 upon which is wound the mass of yarn 16 with the weft or filling wind.

A shaft 17 extends alongside of the spindle 14: and is journalled at its outer end in a bearing 18 at the end of an arm 19 projecting from the frame member 8, while at the other end this shaft slides and rotates in a projection or arm 20 extending from the frame member 7. This shaft 17 at its outer end has secured thereto an arm 21 provided with a guide eye or notch 22, which notch is normally in line with the axis of the spin dle 15. To maintain the yarn guide in this position, the arm 21 is provided with a shoulder 23 resting against a lug 24 on the arm 19. This yarn guide directs the yarn after it leaves the yarn carrier in its path i'l'irough the tension mechanism. If

The shaft 17 is, provided with a plurality of collars 25 adjustably mounted upon and lengthwise of the shaft 1? by the set screws 26. A plurality of fingers, preferably formed of Wire, are pivotally mounted on the shaft 17 and properly spaced by these collars These fingers 27 are somewhat curved at their ends to conform to the shape of the yarn mass and are wound to form spiral hubs 28 fitting the shaft 17. These fingers rest lightly by gravity on the yarn mass and act to prevent ballooning of the yarn as it is drawn off from the yarn carrier and act to insure that the yarn shall be drawn off evenly and smoothly and without kinking A rod 29 is mounted at its outer end in the yarn guide arm 21 and extends parallel with the shaft 17 beneath the fingers 27 and passes at its other end through an arm 30 adjustably secured by the set screw 31 on the shaft 17. Thus it will be seen that whenever it is desired to dofi' the yarn carrier or remove it from its position on the spindle, the yarn guide arm 21 will be swung upwardly and at the same time the rod 29 will swing the fingers 27 clear of the yarn mass. Yfhen. a yarn carrier is placed upon its spindle and the yarn guide returned to guidng position, the fingers 2? swing back and rest upon the yarn mass.

The frame member 8 is provided near its outer end with a lateral projection 32 secured in place by a nut 33 threaded thereon. This projection is so located that the yarn pass i from the yarn carrier and guided by the eye passes over the middle of this {)lOlGCl'lOYl on its way from the yarn carrier to the yarn receiver. A second yarn guide 1; may also be en'iployed and is shown as a noichcd plate secured by the bolt 35 to the .me member 8 and directly in front of the projection A roll guide is provided immediately above the projection 32 and is shown as in the form of a rectangular well 36 formed as :1 part of the frame member 8 and extending vertically above the projection 32. This well is open at the top and bottom and preferably also throughout the middle of one side, as shown at ST. A curved flange 38 projects from the well and with the curved end of the projection serves to direct the yarn over the projection and make the device selfthreading.

A plurality of rolls are provided of a size to fit easily within the well 86 and of dimensions such that the axes of the rolls extend transverse to the yarn path or parallel with the axis of the projection 32. These rolls are superimposed or stand one above the other in the well and are free to rotate and to rise and fall in the well. These rolls may be varied in weight, and this variation is readily accomplished by removing more or less of the central portion of the roll. One such roll 39 is shown separately in Fig. 4. The lowermost roll rests directiy on top of the yarn as it passes over the pr0- jection 32. Consequently a rolling pressure produced upon the yarn and the amount of this pressure is governed by the number and weight of the rolls placed in the well. This mechanism acts very eiiic'iently to produce the requisite tension on the yarn and to prevent kinking of the yarn and insures an even and steady feed of the yarn to the yarn receiver or spool, notwithstanding the fact that the yarn is drawn from a weft wound bobbin and consequently leaves the yarn carrier with a variable speed.

The support for the yarn carrier is readily adjustable longitudinally by the means described, thus enabling yarn carriers or bobbins of any length to be employed.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is:

1. A yarn winding machine comprising a yarn carrier mounted on a fixed support, a rotating yarn receiver to draw yarn from the yarn carrier, a projection from said support over which the yarn passes from the yarn carrier to the yarn receiver, a roll guide above the support, one or more superimposed rolls free to rotate and to rise and fall in said guide with their axes transverse to the yarn path and acting by gravity to produce on the yarn a rolling pressure governed in amount by the number and weight of the rolls, a yarn guide for the yarn as it leaves the yarn carrier movable into and out of position to direct the yarn in its path over the projection and beneath the rolls, a plurality of pivotally mounted fingers resting on the yarn mass on the yarn carrier and acting to prevent ballooning of the yarn and to cause the yarn to be drawn evenly from the yarn carrier, and means operated by the yarn guide when it is moved out of position and acting to swing the fingers clear of the yarn mass.

2. A yarn winding machine comprising a support-mg stand fixedly mounted from the machine frame, a filling carrier supporting spindle on said stand, a shaft mounted in the stand alongside the spindle, and a plu- "ality of fingers pivotally mounted independently on said shaft and resting on the yarn mass on the yarn carrier and acting to prevent ballooning of the yarn and to cause the yarn to be drawn evenly from the yarn carrier.

3. A yarn winding machine comprising the construction defined in claim 2, together with a yarn guide mounted on the end of said shaft, and a rod extending from said yarn guide parallel with the shaft and be neath the fingers, whereby when the yarn guide is rocked on the shaft to move it out of position and permit define; of the yarn carrier from its spindle, the fingers will be lifted away from the yarn carrier.

In testimony whereof, we have signed our names to this specification.

ALONZO E. RHOADES. ARTHUR S. JOHNSON,