US2258915A - Traverse yarn guide - Google Patents

Description

Oct. 14, 1941. P. J. THOMAS I TRAVERSE YARN GUIDE Filed Feb. 12, 1940 Mununuum Patented Oct. 14, 1941 UNITED STATES PATENT: OFFICE I azsams I Y,

TRAVERSE YARN some Pacific J. Thomas, Scranton, Pag-assignor to U. S; Textile Machine Company, Scranton, Pa., a

corporation of Pennsylvania Application February 12, 1940, serial No. 318,533

17 Claims. (C l. 242-.457)

This invention relates to winding machines and more particularly to the devices used in such machines for guiding the yarn tothe roll or-package and for traversing the yarn axially thereof.

It is the general object of my invention to provide a traverse yarn guide of novel and improved ,constructi'om'which will be economicalto manufacture and reliable in operation.-

To the attainment of this object, one important feature of my-invention relatesto the provi-- sion ofi an improved pivotal mountingfor a traverse yarn guide, which may be readily adjusted totakeup wear and lost motion and which affords protection against accidental displacement o'fsai'd guide. 'My invention also includes an im-' proved and simplified method "of 'securingthe,

porcelain guide member to the free end of the pivoted guide arm. My invention further relates to arrangements and combinations of parts whichwill-be hereinafter described and more particularly pointed out in the-appended claims. A preferred former the invention is shown in the'drawing, in which Fig. l is afront elevation'o i parts of a winding machine embodying my improvements;

Fig. 2 is a sectional sideielevation, partly in section and taken along the'line 2-2 in Fig. ,1;

'Fig. 3 is an enlarged detail front elevation} partly in section;

Fig. 4 is a plan view, looking in the direction of the arrow 4 in Fig. 3;

Fig. 5 is a sectional end elevation, taken along the line 5-5 in Fig. 4;

Fig. 6 is a sectional end elevation, taken along the line 56 in Fig. 3;

Figs. 7 and 8 are plan views of two parts of a hinge bracket;

Fig. 9 is a plan view of a porcelain guide member, looking in the direction of the arrow 9 in Fig. 2; and

Fig-10 is a detail view to be described.

Referring to Figs. 1 and 2, I have shown parts of a winding machine of the up-twister type, comprising a take-up roll R, a driving drum D, a swinging frame F, a spool S on a twister spindle 10, a guide-wire H, and a guide-roll I2 by which the yarn Y is directed to the traverse yarn guide G which delivers the yarn to the take-up roll R and which also traverses the yarn axially thereof to produce a desired helical winding.

The traverse yarn guide is mounted on a traverse rod ll supported on guide-rolls i8 mounted in fixed bearing members i 9. The traverse rod is .1

reciprocated in the usual manner by any suitable actuating mechanism, not shown. I 7

The actuating mechanism thus far described in itself forms no part of mypresent invention, .which relates more=particularlyto the traverse j The traverse yarn guide G comprises a m; lain-guide member 20 mounted at the free end of a guide arm-2i, which arm is pivotallyflconnected to the traverse rod H by a pivot stud or pintleii and a bearing bracket formed in upper and lower'parts and 26 (Figs. 7 and 8).

The'pivotstud 2G is formed as shown in Fig. 10, with a conical. portion 21 at each end and also with-a much reduced cylindricalportion 28.

The inner end of the guide arm 21 isbent up to receive, and firmly grip the pivot stud 24, which may be; additionally secured therein by brazing or soldering ifiso desired.

Eachbrachet part 25 and 2s isprovided with an end flange {30 having a conical recess-3i (Fig.

3) and having a smallpylindrical holeti con- *centric withsaid recess and of such diameter as toreceive one ofthe reduced end portions k280i v dfl- The parts are-{assembledfas shown particularly in Fig'fi, by placing the upper bracket part :25 v over thelower part 26, and by passing a clamping" screw '33 through slots '34 in the parts 25 and 26 and then tightening the screw 33 in a tapped hole in the traverse bar ll.

The upper bracket part 25 has an upwardly extending projection 36 on its front side, which projection acts as a stop to limit forward swing- I ing movement of the arm 2!. The upper part 25 also has downwardly extending projections 38 which engage a down-turned flange 39 on the front edge of the lower bracket part 26. The flange 39 in turn engages the front edge of the traverse bar ll, so that both bracket parts 25 and 26 will be accurately aligned with the traverse bar I! and with each other.

The lower part 26 (Fig. 7) has a downwardly inclined projecting portion 46 provided with a tapped hole 4! to receive a clamping screw 42 (Fig. 6) which extends through a slot 43 (Fig. 8) in a similar down-turned projection 44 of the upper plate 25. With this construction, the bearing parts 25 and 26 may be initially assembled with the arm 2? and pivot stud 2e and will be aligned with each other and with the pivot stud by the coaction of the projections 38 and the flange 39. The assembled parts may then be bar by the clamping screw 33, which is preferably provided with a Washer 41.

The cylindrical end portions 28 of the pivot V stud extend into the small holes in the flanges 30 and prevent accidental displacement of the arm 2|, which might occur if conical bearings only were provided.

The porcelain guide member is provided with a guiding slot 50 at one end having an enlarged entrance 5|, with a guide-eye 52 at the outer end of a recess 53, and with a delivery slot 55 which in part underlies the delivery end of the guide member 20 and which has connected therewith an inclined threading slot 56 through which the thread is readily inserted. 1

The porcelain guide member 20 is also slotted at 60 to receive the outer end 6| of the guide-arm 2|, which outer end may be cemented or otherwise secured therein. The guide arm 2| and bracket members and 26 may be conveniently formed of stamped sheet metal, and the entire construction is economical to manufacture and reliable in use, particularly as the spaced conical bearings of the guide arm prevents transverse displacement of the guide member 20 lengthwise of the traverse rod I! when the traverse rod is reversed at its opposite limits of travel.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:

1. In a winding machine having a traverse rod, in combination, a traverse yarn guide, a bearing bracket secured to said traverse rod and having spaced conical bearing recesses, and a pivot stud on which said yarn guide is mounted and which is provided with conical end portions seated in said spaced conical recesses of said bearing bracket.

2. The combination in a winding machine as set forth in claim 1, in which the bearing bracket is formed in two superposed parts each having an end flange with one of said conical bearing recesses formed therein.

3. The combination in a winding machine as set forth in claim 1, in which the bearing bracket is formed in two superposed parts each having an end flange with one of said conical bearing recesses formed therein, and in which means is provided for relatively adjusting said bracket parts and for securing said parts in adjusted relation.

4. The combination in a winding machine as setforth in claim 1, in which the bearing bracket is formed in two superposed parts each having an end flange with one of said conical bearing recesses formed therein, and in which means is provided for longitudinally aligning the axes of said bearing recesses.

5. The combination in a winding machine as set forth in claim 1, in which the bearing bracket has a small cylindrical hole concentric with each conical recess, and in which the pivot stud has reduced cylindrical end portions seated in said small holes.

6. In a winding machine having a traverse rod, in combination, a traverse yarn guide comprising a guide arm having spaced conical end bearing portions, a bearing bracket having two relatively adjustable parts provided with spaced conical bearing recesses adapted to receive said conical end bearing portions of said guide arm, means to secure said bracket parts with said conical end portions and said bearing recesses in operative engagement, and means to relatively adjust and secure said traverse yarn guide and bearing bracket as a unit on said traverse rod.

7. In a winding machine, a traverse rod, a traverse yarn guide, a guide arm having an elongated and transversely disposed pivot portion, a two-part bracket having spaced bearing portions in which the ends of the pivot portion of said guide arm are rotatably supported, means to relatively adjust said bracket parts to receive the ends of said pivot portion and to secure said bracket parts to each other in effective bearing relation to said ends of said pivot portion, and means to secure said bracket and guide-arm as a unit in longitudinally adjusted position along said traverse rod.

PACIFIC J. THOMAS.

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