US2107385A - Yarn winding machine - Google Patents

Description

Feb. 8,1938. R. E. osgn YARN WINDING MA CHINE Filed July 11, 1954 4 Sheets- Sheet l J i g mmmmauuumlmumum WI TNESSES INVENTOR:

Hobarfi. El M3332",

A TORNEYS.

Feb. 8, 1938. R E MOSER 1 2,107,385

YARN WINDING MACHINE Filed July 11, 1954 I N VEN TOR.- Raherfifi. M3552;

Feb.8,1938. REMOSER 2,307,385

YARN WINDING MACHINE 7 Filed July 11, 1954 4 Sheets-Sheet 3 FIG. I.-

WITNESSE INVENTOR:

(06C? Ewart E. M556;

Feb.s,193s REMOSER 2,107,385

YARN WINDING MACHINE Filed July 11, 1934 4 Sheets-Sheet 4 EMMA M IV I I N V EN TOR: I zitmsm;

Patented Feb. 8, 1938 uNi'rsn sraras parent OFICE' YARN WINDING MACHINE Robert E. Moser, Reading, Pa, assignor to Rose dale Knittin 00., Inc Reading, Pa., a corporation of Pennsyivania Application July 11, 1934, Serial No. 734,584 10 Claims. (Cl. 28-17) This invention relates to yarn winding ma- As herein delineated, my novel back winding chines; and it has reference more particularly to machine comprises a pair of spaced end frames, machines for back winding defective ringless I and 2 which, at one side of the machine, are stocking blanks which for various reasons have connected by a pair of vertically-spaced longitu:

been damaged in the factory, in order to recover dinals 3 and 4 of angular cross section, and, at 5- for re-use, the different yarns from which the the opposite side of the machine, by similarly blanks were knit. spaced longitudinals whereof the. upper one 5 is Stockings of the kind referred to are ordinarily. y ndr as s wn at h ri ht and f F II, knit from at least three different body yarns and the lower one 6 of angle section like the lon- 10 which are fed to the needles of the producing gitudinals 3 and i. 10. knitting machines in a predetermined repeating The defective stocking blanks which are to be order or cycle to form successive courses of the raveled are indicated at B, the same being hung stocking fabric. side by side in horizontal rows from hooks 1 se- In the main, my invention is directed toward rially arranged along opposite faces of a longimaking it possible to continuously recover and tudinal over-head beam 8. This beam 8 may 15 separately collect the several component yarns be of wood, and, as shown, is supported by posts of defective ringless stocking blanks. 9 upstanding centrally from the end frames l and This desideratum I realize in practice through 2 of the machine. The stocking blanks B are the provision of a reliable back winding machine thus freely suspended for ready withdrawal of which is simple in construction and capable of the yarns Y, Y and Y from which they were 2() operation at high speeds, wherein the yarns are knit, under the pull of rotating collecting spools drawn from the stocking blanks by rotation of if! in axial alignment along opposite sides of the separate collecting spools maintained by their machine, there being three such spools assigned own weight in circumferential contact with drivto each stocking blank. in this instance; As

ing rotor shafts so as to be capable of slipping shown, the spools in are sustained for free ro- 25 when required, and wherein the spools are so artation on the horizontal extremities ll of arms ranged as to permit the yarns to pass and cross l2 whereof the pivot sleeves l3 are confined beeach other freely incident to raveling of the tween collars M on parallel fulcrum rods I5. stocking fabrics with consequent minimization of These rods I 5 extends the full length of the ma-' entanglements and ruptures. chine with their ends fixed in bosses I6 of the end 39 In connection with a back winding machine frames l and 2. Normally, the arms l2 occupy having the above attributes, it is a further aim of the positions illustrated with the flanges of the my invention to provide means whereby the yarn spools l6 resting in circumferential contact with receiving spools for each stocking blank may be constantly rotating longitudinal rotor shafts I! individually withdrawn from contact with the somewhat inward of and in a plane somewhat 35 corresponding rotor shaft topermit interchange below the fulcrum rods E5, the spools being held of spools, as well as means whereby the spools centered between spacing collars l8 on said rotor may be retracted as a group to facilitate yarn shafts. Suitable journal bosses l9 on the end splicing in case breakages occur incident to the frames I and 2 afford the rotor shafts I 1 ap- 40 processes of back winding. propriate bearing support. As a consequence of 40 Still other objects and advantages of this intheir pivotal connection With the rods IS the vention will be manifest from the detailed despool sustaining arms l2 can be swung outward scription which follows of the attached drawings, individually to the positions indicated in dot and wherein Fig. I is a broken out side elevation dash lines in Fig. IV, in which positions they are of a machine for back winding ringless hosiery held through engagement of projections 20 on 45 conveniently embodying the present improvetheir pivot sleeves It with longitudinal stop rods ments. 2! extending along opposite sides of the machine Fig. II is an end elevation of the machine in close proximity to the pivot rods l5. Obviousviewed from the right of Fig. I. 1y, when the arms l2 are individually swung to Fig. III is a plan view of the right hand end the dot and dash line position, their horizontal 50 of the machine (as considered in Fig. I) drawn extremities H are readily accessible for applicato a larger scale; and tion and removal of the spools l0.

Fig. IV is a fragmentary cross sectional view To facilitate splicing of the yarns when ruptaken as indicated by the arrows IVIV in Figs. tures occur, I have provided the means generally I and III. indicated at 22 whereby the group of arms I2 55 rods 33, inward of the slide rods 29 sustaining the yarn Spools IO'for each stocking blank B may be concurrently swung back to inoperative position away from the rotor shafts I1. As shown, each such means 22 comprises a collar 23 which is rockable as well as slidable on the shaft l5, and which is provided with an upstanding grasp handle 24. Connected to the collar 23 is a shank 25 which extends horizontally beneath the three spool sustaining arms l2 of the corresponding group and which is formed with hook fingers 26 adapted, when the collar is shifted 'to' the right, to engage the respective arms to simultaneously swing them to retracted position thereafter, by turning the handle 24 downward in Fig. IV. The end of the shank 25, it will be noted, is in each instance formed into a loop 26 which freely embraces the corresponding fulcrum rod 15 and assists in guiding and supporting the retracting means 22. Normally, the retracting means 22 is held in the position shown in Fig. IV by contact of the projecting boss 21 of the collar23 with the stop-rod 2|.

For the purpose of directing and tensioning the yarns Y, Y van dY en route from the stocking blanks B to the spools I0, and for evenlydistributing the yarns on said spools,,I have provided a traversing carriage 28 which comprises a pair of laterally-spaced parallel sliderods 29 which are guided for end frames I and 20f the machine and which are joined at suitable intervals by cross heads 3|. As shown, the cross heads 3| afford bosses 32 for the support of a pair of supplemental longitudinal and at a level somewhat below them. The rods 29 and 33, it will be noted from Figs. III and IV, are respectively fitted with pig- tail eyes 35 and 36, there being a pair of such eyes for each yarn withdrawn from the stocking blanks.

Reciprocatory movement is imparted to the traversing carriage 28 by a rotary cam 31 having a circumferential groove 38 engaged by a roller 39 on one of the cross heads 3! of said frame. The rotary cam 31 is secured to a shaft 50 journaled at one end in a boss 4| of the right-hand endframe 2 of the machine, and at the other end in a bearing 42 on a transverse girt 43 supported between the upper frame longitudinals 3 and 5..

The drive mechanism of the machine includes an electric motor 45 which is mounted on a plate 46 bridging the lower cross bar 41 of the end frame 2 (Figs. I and II) and the lower longitudinals 4 and 5. To the shaft of the motor 45 is secured a pair of pulleys 48 of small diameter. One of these pulleys, 48, it will be observed from Fig. II, is connected by a belt 49 with a somewhat larger pulley 50 on one of the spool driving rotor shafts I1, from which latter motion is communicated at synchronous speed to the other spool driving rotor shaft 11 by a cross belt connection 5|. The other pulley ,48 on the shaft of the motor 45 is connected by a belt 52 with a relatively large 'pulley 53 on a transmission shaft 54 with journal support in a bracket 55 mounted on the plate 45 adjacent said motor. Alongside the pulley 53 on thetransmission shaft 54 is a small pulley 56 which is coordinated by a belt 51 with a large pulley 58 on the cam shaft 40. The spool driving rotor shafts I! are thus rotatedat high speed, while the cam shaft 40 isrotated at a predetermined slower speed for actuation of the traversing carriage 28 to effect even distribution of the recovered yarns on the spools Ill. The illustrated drive connections are of course to be considered as endwise movement in bosses 30 of the back winding ringless hosiery, the spools M by virtue of resting by gravityon the rotor shafts having the capacity to slip so that one yarn may, in each instance, dwell until the selvages alongv opposite edges of the stocking blanks arecieared by the other two yarns, the align d reie 1 of the spools of each group permitting the cross and pass each other freely in their passage back and forth as they are raveled from the blank to the end that the possibility of entangle ment and rupture is reduced to a minimum. Interchange of spools and yarn splicing or tying are easily andquicklyeffected by the facilities providedfor the purpose. In back winding stockings from very fine gauges, the yarns are passed through the eyes 35 on the slide rods 29 of the traversing frames only en route to the receiving spools I5, suflicient tension being thus imposed on them to insure back winding of said spools. In back winding stockings made from heavier gage yarns, the yarns are first passedthrough the eyes 36 of the supplemental rods 33 of the traversing carriage, as shown in dot-and-dash lines in Fig. IV, and then through the eyes 35 en route to the spools i9, being thereby caused to traverses more devious path with incident imposition. of additional tension so as to avoid looseness of the mappings on the spools. The machine may ob viously be made to any length according te the number of stocking blanks which are to be re ceived at one time, and be made either of single bank design or of double bank design as illustrated.

While I have described my improved winding machine as particularly adapted to back winding ringless hosiery, it may nevertheless be used for back winding ordinary stocking blanks made from single yarns instead of multiple yarns.

Having thus described my invention, I claim:

1. A back winding machine of the character described comprising a pair of end frames; longitudinal fulcrum rods extending along opposite sides of the machine with their ends secured in said end frames; synchronously-driven longitudinal rotor shafts inward of the fulcrum rods and journaled in said end frames; a series of arms pivoted on each of the fulcrum rods and individually sustaining, for free rotation, yarn receiving spools resting by gravity on the rotor shafts, said arms being individually swingable outward to a retracted position for convenience of interchange of spools; a longitudinal overhead beam supported carriage.

2. A machine for back winding hosiery according to claim 1, wherein the traversing carriage comprises a pair of parallel rods siidingly engaged in the end frames of the machine and connected at intervals by cross heads; and wherein the yarn guide eyes are carried by said rods.

3. A machine for back winding hosiery according to claim 1, wherein the traversing carriage comprises a pair of parallel rods slidably engaged in the end frames of the machine, cross heads connecting the rods at intervals, and a pair of supplemental rods parallel to the slide rods and lying in a different plane with their ends secured in the cross heads; and wherein the slide and supplemental bars are provided with aligned eyes to determine devious paths for the respective yarns en route from the stocking blanks to the spools.

4. A machine for backing winding hosiery in accordance with claim 1, wherein the reciprocating means comprises a rotary cam with a circumferential groove engaged by a projection on one of the cross heads of the traversing carriage.

5. A machine for back Winding ringless hosiery, comprising a pair of end frames; a longitudinal fulcrum rod with its ends secured in said end frames; a longitudinal rotor shaft parallel with the fulcrum rod and journalled in the end frames; a longitudinal overhead beam supported by the end frames and provided with means from which a row of stocking blanks may be hung; a group of axially-aligned spools assigned to each stocking blank, said spools being sustained for free rotation, resting by gravity on the rotor shaft aforesaid, by arms pivoted on the fulcrum rod with capacity to be swung to a retracted position relative to the rotor shaft to facilitate interchange of the spools, and means whereby the sustaining arms of each spool group may be concurrently swung to retracted position for the purpose of repairing broken yarn ends, each such means including an element capable of being slid on the corresponding fulcrum shaft to effect engagement of hooks thereon with the individual arms of the group, and of being thereafter turned on the fulcrum shaft to concurrently swing the arms as aforesaid. V

6. A machine for back winding ringless hosiery in accordance with claim 5, wherein the swing of the spool sustaining arms is limited by engagement of stop projections with a fixed longitudinal rod supported by the end frames of the machine adjacent the fulcrum rod.

7. A winding machine of the character described comprising a horizontal spool-driving rotor with circumferential shoulders at intervals along its length; and a plurality of gravity arms independently fulcrumed on an axis parallel with said rotor, said arms having horizontal pins at their outer ends for free endwise mounting and withdrawal of winding spools with end flanges adapted to rest in peripheral frictional driving contact with the rotor and held against endwise displacement on the pins by engagement between adjacent circumferential shoulders on the rotor.

8. A machine for back-winding stockings and the like each knitted from a plurality of yarns, comprising a support for suspension of a number of stockings in a row; an aligned horizontal spool-driving rotor; a plurality of gravity arms independently fulcrumed on an axis parallel with the rotor, said arms having horizontal mounting pins at their free ends for winding spools adapted to rest in frictional driving contact with the rotor; means for guiding the yarns from the several knitted fabrics and evenly distributing them longitudinally of the individual spools; and means whereby the group of spool arms corresponding to each stocking can be swung past dead centers to a retracted inoperative position away from the rotor independently of other such groups.

9. A winding machine of the character described comprising a horizontal spool-driving rotor with circumferential shoulders at intervals along its length; a plurality of gravity arms independently fulcrumed for free up and down movement on an axis parallel tosaid rotor, said arms having horizontal mounting pins at their free ends for winding spools adapted to rest in frictional driving contact with the rotor while held against endwise displacement on the pins between adjacent circumferential shoulders of the rotor; and means whereby groups of the spool arms may be swung past dead centers to an inoperative position away from the rotor independently of others.

10. A winding machine of the character described comprising a horizontal spool driving rotor with circumferential shoulders at intervals along its length; and a plurality of gravity arms independently fulcrumed for free movement on an axis parallel to said rotor, said arms having horizontal mounting pins at their free ends for winding spools adapted to rest in frictional driving contact with the rotor and held against endwise displacement on the pins between adjacent circumferential shoulders on the rotor, and means pivoted on the fulcrum axis for the spool arms, whereby groups of said arms may be swung past dead centers to inoperative positions away from the rotor independently of others.

ROBERT E. MOSER.

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