US2013770A - Warp frame having a device for recharging during operation - Google Patents

Description

M. STEIN El AL Sept. 10, 1935. 2,G13,77Q

WARP FRAME HAVING A DEVICE FOR RECHARGING DURING OPERATION Filed Sept. 2:5, 1950 T Z 2' fight Q NMJWF i a 8 A M wm mmmfiu c AWJIT m w... F. ii;

5 V 1w. LY taif EM 8/ V;

Patented Sept. 10, 1935 MIT WARP FRAME HAVING A DEVICE FOR RECHARGING nUarNe OPERATION Marcel Stein, Budapest, and Ambrosius Fodor, Ujpest, near Budapest, Hungary, assignors to Universal Winding Gompany, Boston, Mass, a corporation of Massachusetts Application September 23, 1930, Serial No. 483,868 In Germany May 28, 1930 6 Claims.

lates more particularly to a creel having a plurality of supply-holders for holding cones or other packages of yarn arranged thereon in position for delivery of the material and shiftable in multiple to a recharging station for re-creeling fresh supplies.

One object of the invention is to provide a creel in which opposite sets of supply-holders are mounted upon an endless conveyor to adapt them to be moved in unison whereby when the supplies of one set are exhausted their holders may be shifted to a charging station and a Whole set of fresh supplies advanced into delivering position.

Another object of the invention is to provide a pair of endless conveyors arranged in opposition on the creel frame whereby the area therebetween may constitute a charging station for both conveyors to convenience the operation of recreeling supplies thereon.

Another object of the invention is to provide for the interconnection of the endless conveyors of the creel whereby they may be operated from a common station.

Another object of the invention is to provide means for automatically doffing the empty yarn carriers or tubes during their advancement from delivery position to the charging station without delaying such advancement.

Another object of the invention is to provide means for locking the endless conveyors during the delivery of the material and recharging of the supply-holders.

Further objects of the invention are, in general, to provide a creel from which the yarn, thread or other strand material may be warped or transferred at maximum speed; in which re-creeling during delivery may be efficiently carried out; and wherein the supply-holders may be simultaneously advanced by manual control exercised at one point of the frame.

Other objects of the invention are set forth in the following specification which describes a preferred and one modified form of the invention, by way of example, as illustrated by the accompanying drawing. In the drawing:

Fig. 1 is a vertical, longitudinal, sectional view of a creel constituting the preferred embodiment .of the invention and showing a vertical or columnar disposition of the horizontal carriers for the supply-holders;

(Cl. 242l31) Fig. 2 is an end view of the same, showing two parallel columnar series of supply-holder carriers and common means for actuating the same;

Fi 3 is an end view of a modified form of the creel in which the supply-holders are disposed in 5 rows on vertical carriers adapted to be moved in a horizontal direction;

Fig. 4 is a top plan view of the structure shown in Fig. 3;

Fig. 5 is a front View of the clamping-device for 10 preventing displacement of the supply-holder carriers;

Fig. 6 is a side elevation of the device shown in Fig. 5;

Fig. '7 shows by way of example one form of 15 stripper for removing the empty cone tubes from their holders; and

Fig. 8 is a front elevation of the stripper shown in Fig. 7.

Referring first to Figs. 1 and 2 of the drawing, 20

the preferred form of the invention, as herein described and illustrated, comprises a rigid framework i having a pair of spaced vertical uprights at each side connected by a pair of parallel cross members secured to the top of the vertical up- 25 rights. To strengthen the framework vertical stanchions forming a part thereof extend from the floor to the upper cross members in spaced relation to the end uprights of the framework. At

the stanchions the framework l supports two ver- 30 tically movable endless conveyors, which may comprise parallel straps or chains 2-2. The endless conveyors are spaced from each other to provide suflicient area therebetween for a chargin rows therealong. The supply-holders 9 support the yarn supplies which are preferably in the form of crosswound cones, cops or packages l2. These cones of yarn may be wound by any suitable method and preferably they are supported on wooden cores or paper tubes provided with axial bores for receiving the holders 9 which may be in the form of spindles. It will be understood that the carriers 8 and the supply-holders 8 on each of the carriers are spaced sufficiently far apart to permit the ready placement of full cones l2 thereon, and the free and unhampered withdrawal therefrom of the strands to be delivered.

Each of the endless conveyors comprising the parallel chains .2 is driven from upper and lower horizontal shafts l5 journaled in hearings on the stanchions of the framework l. The chain 2 of the left-hand conveyor, as viewed in Fig. 2, passes over sprockets or pulleys 3, while the righthand conveyor chain is similarly arranged on spaced wheels or pulleys 4. The carriers 8 are preferably disposed on each conveyor in two sections or series, one of which sections is adapted to be on the right and the other on the left of the vertical plane of the shafts axes whereby, when the shafts l5 are rotated in a clockwise di rection as viewed in Fig. 2, the carriers on the left constitute the ascending flight and those on the right the descending flight of the conveyor.

A chain-wheel or pulley is located on the outer end of each upper shaft i5 and an endless flexible transmission member 6, such as a belt or chain, is led therearound to connect the two upper shafts I5-l5 and adapt the two conveyors to be driven in unison. A peripherally grooved disk or wheel H] is fast on the end of one of the upper shafts 15, preferably that shown at the left inFig. 2, and any flexible endless drawing member H such as a rope, belt or chain is suspended in the groove thereof. The flexible member H is preferably of suflicient length to permit it to be grasped by an operator standing on the floor, preferably by a person located at the charging station A, see Fig. 2.

From. the foregoing it will be observed that the operator standing at the station A, by pulling downwardly on the adjacent length of the flexible member or rope Il, may rotate the disk H shafts l5 and sets of pulleys or wheels 3, 4 and 5 in a clockwise direction.v Since the charging station A is between the two conveyors, and they are traveled in the same direction, the charging flight: of one moves in a direction opposite to the charging flight of the other. For instance, as shown in Fig. 2, the supply-holders 9 of the lefthand conveyor move downwardly and those on the right-hand conveyor simultaneously move upwardly in passing through the charging station A.

Rotatably journaled in any suitable manner on a shiftable axis extending between and preferably parallel with the' upper shafts I5 is a takeup pulley 7 which is provided whereby sufficient tension is maintained on the flexible transmission member 6 to transmit motion from one shaft to the other.

Vertical rods l3 are arranged in advance of each vertical row of supply-holders 9 adapted to support suitable thread-guides or tension-devices, not herein illustrated, for the yarns delivering from the supplies. The rods l3 may be slidably mounted on rollers 14 to adapt the tension-devices to be adjusted toward or away from the supply-holders 9.

The embodiment of the invention shown in Figs. 3 and 4 constitutes an alternative form of creel which differs from the form first described in that the carriers 8 for the supply-holders 9 are disposed vertically andmounted on endless conveyor bands or chains 2 which move in a horizontal direction for shifting the supplyholders. A pair of bevel-gears l8, I9 transmit the rotation of the wheel It! to the shaft i5. Both ends of the shafts l5 may be arranged to slide at the top and bottom on the framework I by means of rollers l6, H.

To render it convenient to secure the conveyors and carriers 8 in fixed position on the creel during the charging and unwinding operations, a locking device such as that shown in Figs. 5 and 6 may be used. Only one locking device is herein shown and described, but it is to be understood that several may be used at a plurality of spaced points on the frame. Each locking device includes a pair of vertically-extending bars 2| connected by a cross-yoke 23. The bars 2! extend along the creel-frame, being separated therefrom on each side by a space or channel area 22 which receives the T-shaped heads on the ends of the carrier-rods 8. A channel-shaped bearing bracket 21 is secured on the frame 1 between the bars 2! for receiving the cross-yoke 23. Jaws 24 formed at each end of the yoke 23 straddle the sides of the bars 2! and a screw 25 on a handle 25 is adapted to be set up against one of the bars to draw the two together. By turning the handle 26 the bars 2'! may be clamped against the framework i whereby the heads 20 of the carrier-rods 8 will be secured against movement in the channel areas 22. When the conveyors are anchored in this manner the re-creeling of fresh supplies at the charging station A and the simultaneous delivering of the material from the active supplies may take place without chance of displacement of the supply-holders.

The stripper deviceillustrated in Figs. 7 and 8 serves the purpose of.removing exhausted supplies from the holdersfl as the latter are returned to the charging station A. Asherein illustrated, the stripper comprises member or plate 28 suitably mounted on a crossrod or angle-iron '39. The plates 28 are spaced along the rods 30 withopenings 28 therebetween through which the spindles or supply-holders 9 pass as the conveyors 8 are traveled on the creelframe. As will be observed by'reference to Fig. 2, a stripper 2B is positioned at one end of each conveyor so that as the supply-holders 9 are traveledby the conveyors the'base-ends of the conetubesor yarn-receivers will ride along the edges of two opposite plates28to' be lifted off from the spindles or holders in themanner illustrated in Fig. 8. In this manner the exhausted or nearly run out cone, or in other'cases the empty conetube or yarn-receiver, is dofied automatically upon the return of each supply-carrier to the charging'station A. Through this provision the operation of re-creeling fresh supplies is expedited and rendered more convenient.

In the operation of the creel one set of. supplyholders'fi carried'by each'pair of conveyor-chains 2 is fixed in stationary position in opposition to the other set in the charging station A at the center of the creel-frame. A supply of cops, cones or other packages of yarn or the like are placed on these supply-holders or spindles 9 extending in rows along the carrier-rods 8.. The operator then grasps the rope or cord H and pulling down on the lengthnearest the charging station turns the wheel or pulley it] in a clockwise direction as viewed in Fig. 2, whereby the conveyor-chains 2 will be traveled around'their pulleys or sprocketwheels 3-3 and.4-4; it being understood that the two shafts I5' carrying the pulleys or chainwheels 3 and 4 for the opposite chains are connected by the belt or chain 6 so that they rotate together.

Under manual operation as above explained the sprockets:or'chain- wheels 3 and 4 will be rotated in a clockwise direction, as viewed in Fig. 2, whereby the conveyor-chains will be traversed thereover with the right-hand length of each chain moving downwardly and the left-hand length moving upwardly. Under this action the full cones on the left-hand conveyor will be. caran arcuately-shaped ried downwardly and then upwardly until the whole series of charged supply-holders are brought into position facing or pointing toward the outside of the creel-frame. Meanwhile, the right-hand conveyor will traverse the charged supply-holders upwardly and then downwardly into a corresponding position with respect to this side of the creel-frame.

The strands from the packages are then drawn off and led through the tension-devices or threadguides supported from the uprights l3 and thence they are carried forwardly or endwise of the creelframe to lead them to the Warping or other machine in which the material is converted.

While the strands of yarn, thread or other material are being unwound from the cones or other supplies placed in delivering position in the manner as above explained, a fresh set of supplies is placed on the supply-holders last brought into position in the charging station A. Now, when the yarn is exhausted, or nearly so, from the delivering supplies the warping or other operation is arrested and the conveyors once more traveled on the creel frame to shift the supply-holders which have been charged with fresh cones into position previously occupied by the first set of cones. The ends are then threaded up and carried to the warping or other machine so that the transfer operation can be commenced immediately without delay for creeling the large number of cones or packages required in the warping or other process.

While the material is being delivered from the new set of supplies re-creeling takes place at the station A, the operator simply placing fresh cones on the supply-holders or spindles 9.

When the automatic strippers 28 are employed the return of the supply-holders carrying spent or exhausted cones to re-creeling position automatically doffs the empty cone tubes or other yarn receivers therefrom. The doffing operation is accomplished as the base ends of the cone tubes or yarn-carriers ride around the edges of the arcuate stripper plates 28 to lift them off from the spindles 9 in the manner as illustrated in Fig. 8 of the drawing.

It will be observed from the foregoing that the present improved creel is highly efi'icient in operation as providing for the automatic dofiing of spent cones or other supplies and the re-creeling of fresh supplies while the delivery of the yarn or other strand material is progressing from previously creeled supplies. The warping or other transfer operation from the creel is therefore practically continuous, without relatively long periods of inaction during the re-creeling operations. That is to say, the warping or other transfer operation is arrested only for a sufiicient interval to transfer the supply-holders with the exhausted cones to the recharging station while they are simultaneously replaced by supply-holders charged with fresh cones and thereafter the transfer operation may be immediately continued.

It will also be observed that the improved creel is extremely simple in construction and method of operation without requiring complication of automatic machinery for replacing the exhausted or spent supplies with fresh cones or packages.

While the improved creel is herein illustrated in a preferred form of construction and with one modified form shown, it is to be understood that further variations may be made in the structure and arrangement of the device without departing from the spirit or scope of the invention. Therefore without limiting ourselves in this respect, we claim:

1. In a creel, a frame, spaced groups of carriers arranged on opposite sides of the frame, supplyholders on the carriers, means for reversing the respective positions of the carrier groups on the frame, and means for engaging the spent supplies to doff them from the supply-holders during the reversing operation.

2. In a creel, a frame, a supply-holder carrier travelable thereon, a series of supply-holders 0n the carrier, and a releasable locking-device for anchoring the carrier against movement on the frame.

3. In a creel, a frame, a plurality of carriers, supply-holders arranged in rows on the carriers, stationary strippers on the frame between the rows of supply-holders, and means for advancing the carriers successively past the strippers to doff spent supplies from the holders.

4. In a creel, a frame, carriers movable in a predetermined path along the frame, supplyholders on the carriers, stationary arcuate plates mounted on the frame in the path of the carriers for dofiing spent supplies from the supply-holders as the carriers advance, and means for moving the carriers.

5. In a creel, the combination of a frame, an endless conveyor on said frame, a series of supply-holders connected to be traveled by the conveyor, and a stripper engageable with the yarncarriers held on the supply-holders to doff them from the holders as the latter are traveled by the conveyor.

6. In a creel, the combination of a frame, endless conveyors mounted to travel across the ends of the frame, carrier-rods connected to the conveyors and extending therebetween on the opposite sides of the frame, supply-holders on the carrier-rods, and strippers stationary on the frame to adapt them to engage the yarn-carriers carried by the supply-holders to doff the exhausted supplies therefrom as they are traveled by the carrier-rods.

MARCEL STEIN. AMBROSIUS FODOR.

Images