US1834961A - Machine for winding cone warps - Google Patents

Description

Dec, 8, 1931. J, v. MOORE ET AL MACHINE FOR WINDING CONE WARPS 2 Sheets-Sheet 1 Filed Nov. 15, 1930 jrulzai 7171177721001? Carl Jnzlsch.

Dec. 8, 1931. J. v. MOORE ET AL 1,834,961

MACHINE FOR WINDING CONE WARPS Filed Nov. 15, 1950 2 Sheets-Sheet 2 i v il H Patented Dec. 8, 1931 UNITED. STATES PATENT OFFICE J'OI-IN V. MOORE AND CARL .IEINISCH, OI PAWT'UCKET, RHODE ISLAND, ASSIGNORS T I MQORE FABRIQ COMIANY, 0F PAWTUCKET, RHODE ISLAND, A CORPORATION OF RHODE ISLAND MACHINE FOR WINDING CONE WARPS Application filed November 15, 1930. Serial No. 495,952.

This invention relates to a machine for Winding warp threads on a tapcredwarp beam and relates more particularly to the winding of a warp composed in whole or in part of elastic warp threads.

It is the general object of our invention to provide a machine by which elastic warp threads may be fed under slight but substantially uniform tension to a conical tapered warp beam.

A further object of the invention relates to the provision of improved means for storing the warp threads which are to be fed to the machine, and to the provision of improved means for delivering the threads to the conical warp beam at different but definitely related speeds.

Our invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention is shown in the drawings, in which Fig. 1 is a sectional side elevation of our improved machine;

Fig.2 is a side elevation of certain driving connections; v

Fig. 3 is a plan view of enlarged scale;

Fig. 4 is a detail sectional side elevation, looking in the direction of the arrow 4 in Fig. 3; v p

Fig. 5 is a detail plan View, looking in the direction of the arrow 5 in Fig. 4, and

Fig.6 is a detail sectional View of one of the thread-gripping discs.

Referring to they drawings, we have shown a winding machine having a frame in which a driving shaft 11 is rotatably mounted. The shaft 11 is provided at one end with the machine on a handle 12 by which it may be rotated and r at the opposite end with a dog 13 having a driving win 14 engaging a recess in one of the heads of a tapered warp beam 15.

The opposite head of the warp beam sin1- ilarly engages a dog 16 on a shaft 17 which is rotatable in bearings in the frame 10 and is mounted in line with the shaft 11.

The beam has a shaft or gudgeon 20, the

ends of which are received in axial openings in the dogs 13 and 16. i

A feed-roll shaft 22 is mounted in fixed bearings and supports a tapered feed-roll24, shown in the drawings as formed in three tapered sections. The ratio between the largest and smallest diameters of the three-part feed-roll 24 is substantially the same as the ratio of the largest and smallest diameters of the warp beam 15.

The warp beam shaft 17 is connected to the feed-roll shaft 22 by sprockets 27 and 28 and a chain 29 (Fig. 2). The surface speed of the feed-roll and of the Warp beam barrel are substantially the same.

Presser rolls 30 are rotatably mounted in swinging arms 31 and engage the upper surfaces of the sectional feedroll 24, and these presser rolls 30 are also preferably of a corresponding taper.

The warp threads W' are preferably stored in open-top receptacles 40, as shown in Fig. 1, and are drawn upward. therefrom around guide rods 41 located substantially above the receptacles 40. The warp threads TV then pass downward around a guide rod 42 and upward around a second guide rod 43 and through a comb 44.

The threads 1V are drawn from the receptacles by thread-gripping and forwarding members (Figs. 4 and 5) by which the threads are delivered to the sectional feedroll 24.

Eachthread-gripping member 50 is pref erably formed as indicated in Fig. 6 and comprises a pair of plates 52, mounted face to face on a hub 53, and each having a plurality of peripheral fingers 54. lhe fingers 54 of each plate 52 are bent and displaced toward and beyond the face of the adjacent plate 52, thus giving them the overlapping relation shown in Fig. 6.

The fingers 54 thus provide a V-shaped peripheral groove, adapted to freely engage an elastic warp thread and to grip and draw forward the thread at a predetermined speed.

A series of these gripping and forwarding members 50 are mounted on a. shaft ,60, rotatable in fixed bearings 61 (Fig. 1) and. provided with a sprocket 62 (Fig. 2) con- The warp threads WV are drawn by the nected by a chain 63 to a sprocket on the shaft 22 previously described. These sprockets are so'proportioned that the peripheral speed of the members 50 at their thread gripping surfaces is substantially the same as the peripheralspeed of the associated part 0f thefeed-roll 24; The several members 50 progressively decrease in'diameter from one o end ofthe set to the otherso as to maintain 7 same pointfin the 'warp.

the same-ratio of feeds thrdughout the width of the warp.

Additional combs 65 and 66 (Fig. 3) are provided for guiding thethreads W from the feed-roll 24 to the; warp beam 15.

While we have indicated a handle 12 for turning the" wa beam l5 and other con"- nected parts, it will be understood that any suitable power drive may be substituted; I

Having: described the con'stru'ction of our improved winding mach-inc, the operation a advaiitagesthereof are as follows:

forwarding members 50' against the uniform but-slight friction of the guide bars 41, L2 and 43 and this is the only tension placed on the warp threads asthey are withdrawn from the contain r-s40 in which they are loosely coiled. The, tension of the threads is thus mach more uniform than in-a construction in which the threads are d rawin from spools in a; reel, which case the size'and weight, of the spools, as well as the inertia thereof, causes wide variations in thread tension.- I e r The warp threads W are forwarded from the members 50 to. the feed-roll 24 at speeds corresponding in ratio to the diameter of the feed-roll at the points to which the respective threads are delivered, and the threads are forwarded at the same'rate and in the same speed ratio tothe warp beam 15. We are thU'S'fliblO to wind atapere'd cone warp from elastic warp threads in such a manner that all of the warp threads are under substantially the same" tension at the ptiint of delivery to the warp beam.

As the amount of warp on the warp beam 15 increases, a slight increase in peripheral s eed at the surface of the beam. will be pro =du'ced, caiisin'g a slightly increased tension on the'warp as awhole, but this increase often'si'on' is i'elatlvely slight, due to the definitely limitedrleng'th of a rubber warp.

Furthermore, such variations in total warp tension are not ob ectionable,.so'long as the tension in the different warp threads is 'maintained uniform throughout. the width ofth'e war-pa p In other words, the important thing in winding a conical warp beam with elastic I warp threads is to maintain a substantially uniform tension of all of the Warpthreads as compared with each other at any given point in the warp. Variations in total warp tension a're'i'eadily taken care of by using an apron or other suitable surface friction to retard the unwinding of the Warp in the loom. 7

While the machine has advantages for general purposes, it is particularly effective with bare rubber or covered rrubber threads, which require very careful and delicate handling to prevent wide variations in thread tension, asbetween different threads at the Having thus described? our invention and the advantages thereof, we do not'wish to be limited to the details herein disclosed, otherwise than; asset forth in the claims, but what we claim 1s:-

'1. In a wlndlng machinea tapered warp beam, ata'pered' feed roll, a pressor IOll y18lCl'- inglyengag ng said feed roll, a plurality; of

open containers in-which'a'seri'es of elastic warp threads are loosely and: separately coiled; and means vto draw said threads from said containers at different relative speeds and'to deliver said threads under substan :tially uniform and positivebutslight tension to said feed roll.

'2; In a windin machine, atapered' warp from whichthe warp threads are delivered under substantially uniform anddefiniteibut slight tension to the feedroll, and means to rotate allof said parts in predetermined speed relations. V

4. In a winding machinefa, thread-gripp ng member comprlsingopairs of identical discs reversely secured face to face and-having their peripheral portions slotted'to form azseriesoffingers,projecting at one sideonly of each disc, the fingers of each disc being displaced toward and beyond'the adjacentthread-receiving groove. p v g In test v ny whereof we have hereunto afsignatures JOHN V. MOORE.

CARL JENISCH.

, p V p face of the other plate toform a ill-shaped

Images