US 2682378 A
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`Fume 29, 1954 Filed June 1'?, 1950 F. B. JAVERY ET AL MACHlNE FOR WINDING YARNS 2 Sheets-Sheet 2 ff m im y mi? 9 MMX IH I
INVENToRs FRANK B. JAVRY RAYMOND CnLOlGVLL ATTOR N EY Patented June 29, 1954 MACHINE FOR WINDING YARNS Frank B. Javery and Raymond C. Longvall, Worcester, Mass., assignors to Warp Compressing Machine Company, Worcester, Mass., a corporation of Massachusetts Application June 17, i950, Serial No. 168,694
2 Claims. 1
The present invention relates to machines for winding yarns, or other lamentary material, into cylindrical forms, such as single or multiple yarn packages, for any desired uses, in subsequent textile operations.
in Patent No. 1,503,381, issued July 29, 1921i, to Arthur L. Remington, there is shown and described a machine for winding yarns into cylin drical forms, that is characterized by the provision of a traversing member adapted to lead yarns to carriers for forming yarn packages thereon, and the present invention relates to an improved mechanism or driving the yarn traversing member of a machine of the type shown in the Remington patent. According to the present invention, there is provided an improved arrangement, whereby the traversing member is moved back and forth with respect to the yarn carriers during the formation of the packages thereon, while at the same time, the traversing member, together with its driving mechanism, is capable of free vertical movement to adjust itself to the variations in the size of the yarn packages being formed on the carriers.
The above and other advantageous features of the invention will hereinafter more fully appear from the following description, considered in connection with the accompanying drawings, in which,
Fig. l is a view in side elevation of a machine embodying our invention.
Fig. 2 is a vertical sectional view along the line 2-2 of Fig. l,l looking in the direction of the arrows.
Fig. 3 is a plan view of the parts shown in Fig. 2.
Fig. 4 is a fragmentary view of a portion of the machine shown in Fig. 1, and illustrating the mounting of the yarn traversing member.
Fig. 5 is a vertical sectional view, on an enlarged scale, along the line 5 5 of Fig. 2, looking in the direction of the arrows.
Referring to the drawings, our invention is shown as being applied to a machine frame comprising spaced side members 2, between which are rotatably mounted a number of shafts 3. Each shaft 3 is driven at one end in any suitable manner, such as by a bevel gear 4 in mesh with a pinion 5 mounted on a power shaft 6 extending parallel to one of the side members 2, with the shaft 6 being connected to a source of power, not shown. A cylinder 'I having a frictional surface is mounted on each of the shafts 3, and a yarn package forming mechanism is adapted to cooperate with each of the cylin ders'I.
As best shown in Fig. l, each package forming mechanism consists of a pair of vertical standards 3 secured to the side members 2 at opposite points on the frame I adjacent to each shaft 3, and each standard 8 is provided with a slot 9 extending the length thereof. A shaft I0 extends between the standards 8 with reduced end portions I @a freely received in the slots 9, see Fig. 5, and the shaft I0 is provided with a plurality of spaced yarn carriers II which, when empty, are adapted to rest on the surface of the associated cylinder 'I.
A pressure roll I2- is supported at its ends by slide blocks E3, each of which is provided with a tongue 23a received in the slot 9 of the adjacent standard 8, as best shown at the left` in Fig. 3 where the standard has been broken away to show the block I3 in section. A traversing member Ii of inverted L-shaped section extends between the standards 8, above the pressure roll i2, with this member being slidably supported near its ends on the blocks I3, by means of bolts i5 received in slots IG formed in the vertical side `Il of the member, see Fig. 4. The side I' of the traversing member I4 is provided with a plurality of spaced guides I8, with the distance between adjacent guides I8 being substantially the same as the distance between the center lines of adjacent yarn carriers Il. As best shown in Fig. l, each guide I8 is adapted to lead a yarn Y to a carrier i I, and the traversing member I4 is adapted to receive a reciprocatory movement to lay the yarn back and forth on a carrier, as itis wound thereon, by a traversing motion which will next be described.
Referring, now to Figs. l and 2, it will be seen that the left-hand end of the shaft 3 extends beyond the side frame member 2, and has mounted thereon, a helical gear I9 in mesh with a helical gearZ mounted on a shaft 2l extending vertically and slidably mounted in bearings 22 provided by a bracket 23 secured to the side frame member 2. The gear 2G is connected to the shaft 2i by a sliding keyway Zla, so that rotation of the shaft 3 will be transmitted to the shaft il in any position which the shaft 2l may occupy as it moves up and down with the traversing member It, as the latter moves with the roll blocks i3, in response to the formation of yarn packages P on the carriers I I below the roll I2.
The up and down movements of traversing member I4 are transmitted to shaft 2l by a cross bar 2-, connecting the two slide blocks I3, I3, said cross bar 24A carrying a bracket 25 providing a bearing 26 wherein is received, rotatably but non-slidably, the upper endofl shaft 2| The4 shaft 2| extends through the bearing 26, and the upper end thereof carries an eccentric disc 21 providing a pin 28 which is connected by a rod 29 to a pin 30 projecting from the top of the traversing member I4. Therefore, rotation of the shaft 2l by the helical gears I9 and 20, will impart a reciprocatory movement to the traversing member I4, with the latter making a complete back and forth traverse for each revolution of the disc 21.
When the machine is operating, rotation of the cylinder 1 will cause the yarn carriers II to rotate therewith, which in turn will cause the yarns Y to be wound on the carriers. At the same time, reciprocatory movement of the traversing member I4 by the shaft 2I will cause yarns passing through the guides I8 to be laid on the carriers II with a traversing movement, thereby building up yarn packages P on the carriers II, with each package P of a width equal to the width of the carriers. As the yarns are moved back and forth on the carriers, the pressure exerted by the roll I2 will compress the yarns on the carriers, and will serve to maintain the yarns in the positions in which they are laid by movement of the traversing member I4. As the yarn packages P increase in diameter, the roll I2 is free to move upwardly between the standards 8, thereby carrying the blocks I3 and the traversing member I4 therewith. This upward movement is accompanied by upward movement of the shaft ZI by reason of the fact that the bracket 25 carrying the shaft bearing 26 is mounted on the cross bar 24, which is secured to the blocks I3.
The amplitude of the back and forth movement of the traversing member I4, can be adjusted by turning the threaded ends of the rod 29 within threaded sleeves 3| interposed between the ends of the rod 29 and the pins 28 and 36. In this way, the effective distance between the pins 2S and 30 can be varied, since the slots I6 in the member I4 through which pass the supporting bolts I5 are long enough to permit any desired adjustment of the rod 29 for obtaining a traversing movement having an amplitude substantially corresponding to the width of a yarn package carrier II.
In order to prevent the thrust of the rod 29 which operates the traversing member I4 from working back through the helical gears I9 and 2li to the cylinder shaft 3, a brake 32 is provided so as to bear on the outside of the eccentric disc 21. As best shown in Fig. 3, this brake 32 is in the form of a curved shoe provided at the end of a lever 33 turnable on a pivot 34 mounted on the bracket 25. The lever 33 extends beyond the pivot 34, and its outer end is connected to one end of a spring 35 having its opposite end secured to the bracket 25. The pull of the spring 35 will cause the brake shoe 32 to exert a constantl pressure on the eccentric disc 21, thereby insuring that the disc will rotate evenly and without chattering, as it moves the traversing member I4 back and forth during the formation of the yarn packages P.
When the yarn packages P have been com pletely formed on their carriers II, and it is desired to doff the package shaft I0, the entire traversing mechanism can be raised on the standards 8 in order to lift the roll I2 clear of the packages P. For this purpose, the cross bar 24 carries a shaft 36 extending across the front of the mechanism with the shaft 36 being supported near its right-hand end by a bearing 31 mounted on the bar 24, while its opposite end extends through a bearing 38 provided by the bracket 25. The shaft 36 is provided at each end with a pinion 39, the teeth of which are in engagement with teeth 40 provided on rack bars 4I extending vertically on the standards 8. The right-hand end of the shaft 36 is extended beyond the pinions 39, and carries a hand wheel 42, by means of which the shaft 36 may be rotated, and thereby cause the pinions 39 to travel up the rack bars 4I and raise the entire assembly of the traversing mechanism, as the blocks I3 travel upwardly in the slots 9 of the standards 8.
As best shown in Fig. 5, a pawl 43 is mounted at each end of the shaft 36, adjacent to a pinion 39, so that when the traversing mechanism assembly is raised by turning the hand wheel 42, to a height suflicient to clear the packages P,
, the entire assembly can be locked in its raised position by turning the pawls 43 in a clockwise direction about the shaft 36, as viewed in Fig. 5, to engage the rack teeth 40. With the traversing mechanism assembly thus locked in its raised position, it is an easy matter to don" the shaft Il! with the completed packages P thereon, by passing the ends of the shaft ID through notches 44 provided in the standards 8, as indicated in Fig. 4. After a shaft I0, with a series of empty yarn carriers II has been placed in position so as to bear on the cylinder 1, the traversing mechanism assembly can be lowered to bring the guides I8 into register with the carriers by releasing the pawls 43 from the rack teeth 40, thus bringing the parts of the traversing mechanism in position to start the formation of a new series of yarn packages P.
While only one complete traversing mechanism is shown mounted on the frame I in Fig. 1, the present invention contemplates the provision of a traversing mechanism operating in connection with each of the cylinders 1 that are supported between the side members 2. When it is desired to operate the machine in connection with one or more cylinders 1, the several strands of yarn Y are taken from a suitable creel, not shown, from which they pass under` a roll 45, and then upwardly over rolls 46 and 41 above the frame I. The yarns are then passed downwardly around a roll 48 from which they pass upwardly, in selected groups, to a number of spaced rolls 49 rotatably supported one above the other between extensions 5D of the side frame members 2. The separate sets of yarns passing over the rolls 49 are then led downwardly to each traversing mechanism, which as previously described, is provided in connection with each cylinder 1.
From the foregoing, it is apparent that by the present' invention, we have pro-vided an improved yarn winding machine that is particularly adapted to produce cylindrical forms, as single or multiple yarn packages, which may be readily doffed from the machine, and subsequently employed for any desired purpose, in textile operations. The diameter and width of the yarn packages can be controlled, as desired, in
order to obtain the proper amount of yarn on each carrier II, and the improved arrangement for driving the yarn traversing member insures that the packages will be of uniform character. While the use of a plurality of yarn carriers II has been shown, it is obvious that a single package could be formed by the operation of the traversing member I4, by Winding directly on the cylindrical barrel of a spool mounted between the standards 8, with the end shafts of the spool received in the slots 9.
1. In a machine for winding yarns having in combination a rotatably driven cylinder, a pair of spaced standards providing vertical guidesI extending above said cylinder, a shaft having its ends received in said guides for supporting a plurality of yarn carriers in engagement With said cylinder, a pair of blocks slidable vertically in said guides, and a pressure roll supported at its ends in said blocks, the improvement Which consists in providing a traversing member having guides therein for leading individual yarns onto said yarn carriers at separated points under said pressure roll, and further having a longitudinally extending slot adjacent each end, horizontal pins projecting from each of said blocks for engagement with said slots thereby supporting the traversing member while permitting movement of said member parallel to the axis of said yarncarrier shaft, a vertical shaft, a member for rotatably supporting said shaft from one of said blocks, gearing permitting relative axial movement of said shaft for rotatively driving said shaft at a speed dependent upon the speed of said driven cylinder, and means for converting the rotation of said shaft into reciprocatory movement of said traversing member including an eccentric disc mounted on said shaft, a connecting rod extending between said disc and traversing member, and means for adjusting the length of said connectingr rod to vary the amplitude of the traversing movement of said member.
2. In a machine for winding yarns comprising a rotatably driven cylinder, a pair of spaced standards providing vertical guides extending above said cylinder, a shaft having its ends received in said' guides for supporting a plurality of yarn carriers in engagement with said cylinder, a pair of blocks slidable vertically in said guides and a pressure roll supported at its ends in said blocks so as to bear on said yarn packages, the improvement which consists in providing a. traversing member having guides therein for leading yarns to said carriers at separated points along said pressure roll, means for supporting said traversing member for longitudinal sliding movement on said blocks, a cross member connecting said blocks, a bracket carried by said cross member, a shaft rotatably mounted on said bracket, a gear driven from said cylinder mounted on said shaft and slidably keyed thereto, means carried by said bracket shaft for imparting reciprocatory movement to saidy traversing member between said blocks, simultaneously with vertical movement of said blocks with respect to said driving gear, and means carried by said cross member for causing movement of the entire traversing mechanism between said standards to separate the pressure roll from the yarn packages preparatory to doiiing the same.
References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 179,488 Reid July 4, 1876 708,979 Heylman Sept. 9, 1902 1,491,305 Hop et al. Apr. 22, 1924 1,503,381 Remington July 29, 1924 1,602,954 Todd Oct. 12, 1926 1,621,723 Heany Mar. 22, 1927 1,808,573 Remington et al. June 2, 1931 2,387,949 Siegenthaler Oct. 30, 1945 FOREIGN PATENTS Number Country Date 3,296 France July 14, 1826