US2077127A - Bobbin cleaning machine - Google Patents

Description

April 13, 1937. A j- QWLER i 2,077,127

BOBBIN CLEANING MACHINE l Filed April 1,` 1936 Patented Apr. 13, 1937 UNITED STATES PATENT OFFICE This invention relates to a machine for removing weft ends from bobbinswhich have been ejected from automaticrlooms before complete exhaustion of theweft thereon.' These ejected bobbins commonly have from one to three or four yards of` weft remaining on the barrel of each l vide an improved machine for removing the weft ends from the bobbins without injury tothe bobbins or scratching of the weftlengaging surface thereof.

To the attainment of this object I provide a rotated container, by the 'operation of Awhich the bobbins are'caused to coact on each other in such manner as to entangle and unwind the weft ends therefrom without engagement of the bobbins by clamping jaws or other mechanical devices.

My 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 drawing, in which Fig. 1 is an end elevation of my improved bobbin cleaning machine;

Fig. 2 is a sectional plan View, taken along the line 2 2 in Fig. 1;

container;

Fig. 4 is an enlarged detail sectional view of certain parts to be described;

Fig. 5 is a partial view of a bobbin having a weft end thereon, and

Fig. 6 shows a mass of weft ends as produced by the operation of the machine.

Referring to the drawing, I have shown a supporting frame I0 having cross bars II on which bearings I2 are mounted. A revolvable container C is provided with end gudgeons I3 and I4 rotatably supported in the bearings I2. A gear I5 is xed to the gudgeon I4 and is engaged by a pinion I6 on a countershaft I1 rotatablel in fixed bearings I8 and provided with tight and loose pulleys I9 and 20, with which pulleys a driving belt 2| is associated. By shifting the belt 2| from the loose to the tight pulley, the container C may be rotated for any desired period.

The container C preferably comprises octagonal wooden heads 24 to which wooden side plates 25 are firmly secured in any convenient manner, as by brackets; 26 and bolts 21 (Fig. 4).

Before the side plates 25 are secured to the Fig. 3 is a sectional end elevation of the rotated lined with a cushioning frictional material.: As indicated in'Fig. 4, the lining may comprise two layers of sheet-rubber 28 between which :are interposedtwo layers of canvas 29. Preferably the i vends of theselayers are clampedv between the heads 24 and side plates 25, as also indicated in Fig. 4. f i z Certain of the side plates are mounted forconvenient removal to aiford access to the interior `of the container C. vIn Figs. 1 and 3, I have indicated a cover section 30 comprising two adjacent side/plates secured together,'said section 30being hinged at 3l to an vadjacent side plate 25 and being providedxwitha latch32rbywhich it may be'retained infclosed position." 3.-.; Il

Blocks 40 are secured to the inner faces of the side plates 25 and of the cover structure 30 as indicated in Figs. 2 and 3, these blocks being preferably formed of wood and being covered with rubber and canvas as previously described. Additional blocks 4I may alsoI be provided, preferably having curved outer surfaces and being also covered with rubber and canvas.

The frame I may support a bracket having a slide or track for a bobbin tray 46 adapted to receive a load of bobbins transferred to it from a mill truck 41. The frame I0 may also support a slide or track 50 for a second or receiving tray 5I in which the load of bobbins from the rotatable container C may be dumped after being cleaned. I have also indicated a second truck 52 to which the cleaned bobbins may then be transferred.

Having described my improved bobbin cleaning machine, I will now describe the operation and advantages thereof.

A load of 500 to 600 bobbins is` placed in the tray 46, the cover section 30 is opened and the tray is pushed forward so that the bobbins to be cleaned may be dumped into the container. The container is then closed and is rotated for a desired period, commonly about five or six minutes.

The bobbins B when placed in the container each have a bunch of weft W (Fig. 5) near the butt of each bobbin. As the bobbins are tumbled about within the rotating container, they coact on each other and the weft ends of the different bobbins quickly become entangled and are unwound from the bobbins. The operation is much facilitated by the action of the blocks 40 and 4I which agitate the bobbins and cause them to more effectively coact on each other.

After the machine has been operated for a few minutes, the cover section is unfastened and the Vheads-or ends 24, each side plate is preferablyv l It is also found by experience in actual use that Y 98 to 99% of the bobbins will be completely cleaned when removed from the containerafter ve or six minutes operation of the machine. The few bobbins not completely `cleaned are re turned to the container with the next load of bobbins to be cleaned.

My improved bobbin-cleaning machine has two very important advantages. In the rst place it handles bobbins with great rapidity, one machine v'easily cleaning upwards of ve thousand bobbins per hour.

A further and even more important advantage lies in the fact that the bobbins are cleaned without engagement by any mechanical device. Consequently the bobbins are not injured and the vyarn-engaging surfaces of the bobbins are not scratched or abraided. This is a particularly Valuable feature when using silk or rayon or any Iother fine or delicate weft.

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. A machine for l unwindingA and removing waste yarn from loom bobbins comprising a revolvable container having a cushioned frictional inner surface and a plurality of inwardly pro- Jecting obstructions on the inner face of said container, a closure for said container, and means to rotate said container.

2. A machine for unwinding and removing waste yarn from loom bobbins comprising a revolvable container having a cushioned frictional inner surface and a plurality of rubber-covered blocks secured to said inner surface, a closure for said container, and means to rotate said container.

3. A machine for unwinding and removing waste yarn from loom bobbins comprising a revolvable container having a plurality of flat sides Aeach provided with a sheet rubber and canvas lining, a plurality of cushioned blocks secured to the inner faces of said at sides, a closure for said container, and means to rotate said container.

4. A machinevforl unwinding and removing waste yarn from loom bobbins comprising' va re'- volvable container having a plurality of at sides and a plurality o-f cushioned blocks secured to the inner faces of said at sides, a closure for said container, and means lto rotate said con-,- taner.

5. A -machine for unwinding and removing waste yarn from loom bobbins comprising a re-

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