US2426473A - Control guide for yarn winders - Google Patents

Description

s. A. STRAW 2 ,426,473

CONTROL GUIDE FOR YARN WINDERS Filed Feb. I 17, 1945 INVENTOR samaelrfl 6Y1 w ATTORNEYS Patented Aug. 26, 1947 CONTROL GUIDE FOR YARN WINDERS Samuel A. Straw, Pawtucket, R. 1., assignor to American Textile Company, Inc., a corporation of Rhode Island Application February 17, 1945, Serial'No. 578,374

Claims.

This invention relates to a winding machine for winding conical packages of yarn a taken from a swift and more particularly to the guide through which the yarn passes for maintaining the stop motion in operating or running position.

In the use of certain cone winding machines, yarn is led from a swift downwardly through a guide mounted on the drop wire of the stop motion and thence to a cop or bobbin where the same is packaged. The drop wire is held up from engagement with a rocker arm which supplies the actuating force for moving the drop wire to stop the machine by the tension of the yarn, while this drop wire also serves to supply some tension on the yarn. Should the yarn run loose or break, then, the drop wire which is supported by the yarn will drop by gravity into engagement with the rocker or oscillator of the machine and effect a stopping of the machine. In an arrangement of this sort, due to the unevenness of the yarn on the swift as the same rotates to let off the yarn a variation in tension on the yarn will occur and thus this sort of a machine is not adapted to be used on fine count yarn because fine count yarn is not sufiiciently strong to withstand the varying tension placed upon it.

One of the objects of this invention is to provide a guide which will act as a tension device and will cause a substantially uniform tension to be placed on the yarn at all times.

Another object of this invention is to provide an arrangement whereby finer counts of yarn may be run in this apparatus or machine without danger of breaking.

Another object of this invention is to provide guide eyes which will yield varying amounts.

With these and other objects in View, the invention consists of certain novel features of construction, as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawings:

Fig. 1 is a diagrammatic view illustrating the drop wire equipped with the guide of this invention and howing diagrammatically the swift and the take-up package with the yarn extending through the guide from one to the other;

Fig. 2 is a perspective view of the drop wire and guide mounted thereon.

In proceeding with this invention instead of using the usual rigid guide attached to the drop wire of the winding machine I have provided an arm which extends to a substantial extent outwardly from the drop wire and which is provided with sections of different resiliency, the more resilient section being outermost from the drop wire, and I have then provided guide eyes at spaced intervals along the arm so that as the yarn is led through these guide eyes in its passage from the swift to the take-up package the arm will bend in varying amounts dependent upon the stiffness of the sections so as to provide a constant tension on the yarn whereby the arm will whip back and forth to quickly take up any slack there may be provided by the varying amount supplied from the swift.

With reference to the drawing, l0 designates the upstanding support of a Winding machine which rotatably mounts thereon the swift ll having the yarn l2 held thereon leading off as at M. The take-up package is designated l5 and is mounted upon a swinging support l6 which causes the package to frictionally engage the drive roll H to rotate the take-up package. A traverse l8 guides theyarn on the package.

A stop motion is provided for lifting the package [5 from the driving roll in the usual manner which is not here illustrated and this stop motion is actuated by a rocker l9 secured to an oscillating shaft 26 which extends the length of the machine and is in a position to be engaged by the drop wire designated generally 2!, which, in this instance, is a casting mounted upon a shaft 22 by set screws 23. A hook shape portion 24 has a lip 25 to engage the rocker when this drop wire is free to swing by gravity about the axis of the shaft 22 to engage the rocker 20. Portion 26 serves as somewhat of a counterbalance for the drop wire member so that too great a weight will not be placed upon the running yarn.

In order to support the drop wire 2| against rocking counterclockwise by gravity, as shown in the views Figs. 1 and 2, I provided a uide designated generally 21 and which consists of a very light flexible portion 28 and a somewhat stiffer-portion 29. The wire 28 is of substantially piano wire resilience and extends the full length of the arm and has a porcelain guide 30 for the yarn mounted at its outer end. The inner portion of this arm is stiffened by a wire 3| which is somewhat larger and not as resilient. This wire 3| is provided with a loop at- 32 and extends upwardly along the lower portion of the more resillent wire 28 and then outwardly to provide a guide eye 33, this wire 3| being bound to the resilient wire as at 34 by helically tightly coiling a strand or cord about the two. The arm, thus formed, is secured in a bore 35 in the boss 36 which is integral with the drop wire 2|.

In use, the yarn [4 extends down through both of the eyes 30 and, 33 (see Fig. 1). Due to the tension on the swift and the relative position of the parts substantial bending will occur of the portion 28 as winding occurs as shown at 38 in Fig. 1. A slight bending will occur at 29 along the stiffer portion. The drop wire itself will serve to apply a certain tension upon the yarn. Any irregularity due to different diameters of the swift from which the yarn leads will be taken up by a whipping action along the portion 28 of the arm and a more uniform tension will occur than heretofore.

I claim:

l. A control guide for a yarn winder having a rigid member for engaging a rocker, comprising a flexible arm extending from said member and guide eyes provided on said arm at spaced locations therealong.

2. A control guide as set forth in claim 1 wherein the outer portion of said arm is more flexible than the portion of the arm adjacent said member.

3. A control guide as set forth in claim 1 wherein the arm is divided into a plurality of sections of different flexibilities.

4. A control guide as set forth in claim 1 wherein the arm is divided into a plurality of sections of different flexibilities and the outer section is more flexible than the section adjacent said member.

5. A control guide as set forth in claim 1 wherein the arm is divided into a plurality of sections of different flexibilities graduated as to flexibility with the flexibility being progressively greater as they are distant from the member 6. A control guide as set forth in claim 1 where- :in the outer portion of said arm is more flexible than the portion of the arm adjacent said member, and wherein yarn guide eyes are at the outer ends of portions of said arm of different flexibility.

7. In a Winding machine for drawing yarn from :a swift and packaging the same, a stop motion member adapted to drop by' gravity and engage :a rocker and be moved thereby to stop the winding operation, and means secured to said member through which saidyarn passes to hold the member out of engagement with said rocker, said means comprising an arm secured to and extending outwardly away'from said member, said arm being formed of parts having different inherent resilience with the more resilient at an end portion away from the member than at its portion adjacent the member.

8. In a Winding machine for drawing yarn from a swift and packaging the same, a stop motion member adapted to drop by gravity and engage a rocker and be moved thereby to stop the winding operation, and means secured to said mema ber through which said yarn passes to hold the member out of engagement with said rocker, said means comprising an arm secured to and extending outwardly and upwardly away from said member, said arm being more resilient at its end portion away from the member than at its portion adjacent the member, and a guide eye adjacent the outer end of said arm and a guide eye adjacent the outer end of the stiffer portion of said arm.

9. In a winding machine for drawing yarn from a swift and packaging the same, a stop motion member adapted to drop by gravity and engage a rocker and be moved thereby to stop the winding operation, and means secured to said member through which said yarn passes to hold the member out of engagement with said rocker, said means comprising an arm secured to and extending outwardly and upwardly away from said member, said arm being more resilient at its end portion away from the member than at its portion adjacent the member, and a guide eye adjacent the outer end of said arm and a guide eye adjacent the outer end of the stiffer portion of said arm and between said outer eye and said member.

1 0. In a winding machine for drawing yarn from a swift and packaging the same, a stop motion member adapted to drop by gravity and engage a rocker and be moved thereby to stop the winding operation, and means secured to said member through which said yarn passes to hold the member out of engagement with said rocker, said means comprising an arm secured to and. extending outwardly and upwardly away from said member, said arm having a stiffer part and a relatively more resilient part, the latter being at the outer end of the arm and its stiffer part being adjacent the member, and a guide eye adjacent the outer end of the stiffer portion of said arm, the outer portion of said arm being of a resiliency to flex and whip as a varying delivery of yarn from said swift occurs and a guide eye at the outer end of the arm.

SAMUEL A. STRAW.

REFERENCES CITED The following references are ofrrecord in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,541,581 McKean June 9, 1925 FOREIGN PATENTS Number Country Date 196,140 Great Britain Apr. 19, 1923

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