US1640833A - Fabric-cutting machine - Google Patents

Description

Aug. 30, 1927. 1,640,833

} o. l. JUDELSHON FABRIC CUTTING MACHINE 3 SHeets-Sheet 1 Filed Oct. 22, 1925 i I a INVENTOR 0,. f. Jude/swan ATTORNEY Aug. 30. 1927. 1,640,833

0. l. JUD ELSHON FABRIC CUTTING MACHINE Filed Oct. '22} 1925 a Sheets-Sheet 2 I IN-VENTOR 0. I fudels/wfl law ATTORNEY 1,640,833 1927' o. I. JUDELSHQN/ FABRIC CUTTING MACHINE Filed 00:. 22', 1925 a Sheets-Sheet 3 INVENTOR 0. Judelshon A TTORNEY .such as along a folded edge of the fabric,-

Patented Aug. 30, 1927.

UNITED STATES OSCAR I. JUDELSHON, or PARK RIDGE, NEW JERSEY.

FABRIC-CUTTING- MACHINE.

Application filed October 22, 1925. Serial m. 64,116.

The objectof my invention is to provide a machine adapted to cut fabric of a tubular characteristic, either of'a woven or knitted variety, during progress of the fabric through the machine. Some fabrics are made in tubular form, such as woven goods with edges stitched together, or knitted fabrics, such as those made on circular knitting machines.

In carrying out my invention 1 provide means for feeding lengths of fabric in tubular or doubled form, which may be fed in a flatwise condition, with cutting means adapted to sever the fabric as the latter travels relatively to such cutting means. In the arrangement disclosed a circular knife is provided within the fabric between the two webs or layers thereof to cooperate with arotative disk opposing the cutter operative along the exterior of the fabric,

whereby as the fabric" is fed at such portion between the cutter and the disk the fabric will be severed in a longitudinal direction. My invention also comprises 1 novel details of improvement that will be more fully hereinafter set forth and then pointed out in the claims. I

Reference is to be had to the accompanyingdrawings forming a part hereof, where- Fig. 1 is a plan view of a machine embodying my invention; v Fig. 2' is a detail perspective view; Fig. 3 is a side elevation, partly in section, online 3, 3, in Fig. 1;

.Fig. 1 is a sectional detail; I Fig. 5 is a partly broken view looking from the left hand side'of Fig. 3;

Fig. .6 is an enlarged detail section substantially on the plane of line 6, 6, inFig. 1; Fig. 7 is a sectional detail substantially on line 7, 7, in Fig. 5;

.Fig. 8 is a detail perspective of the cutter supporting arm; and I Fig. 9 is a perspective of a fabric spreader. j Similar numerals of reference indicate corresponding parts in the'several views. At 1 is indicated the main frame of'the machine, which maybe of any suitable construction. Pairs of fabric-feeding rolls are indicated at 2, 2 3, 3 and 4, 4, between which the fabric A- is to be fed. Said pairs of rolls are shown respectively -journaled on spaced uprights 5, 6, 7. The shafts 8, 9, 10 of the rolls 2, 3, 4 are journaled to Totate'in'suitable hearings in the corresponding uprights 5, 6, 7. The shafts 11, 12, '13 of the rolls 2, 3, 4 are supported for lateral movement in corresponding vertical.

slots 5 6 7 of the uprights 5, 6, 7 adapt ed to be resiliently forced toward the corresponding rolls 2, 3, 4 by means of expansion. springs 14 operative in said slots against bearing blocks 15 slidable in said slots and operative against the corresponding shafts 11, 12, 13, (Figs. 3 and 45), whereby suitable pressure between the pairs of rolls against the interposed fabric A is provided for feeding the latter in the direction of the arrow in Fig. 3. of any suitable construction and preferably provided with a covering of rubber, felt, or the like 16 for adherence to the fabric A. The shaft-s 8, 9 and 10 are all driven in the same direction for feeding the fabric at a suitable speed and tension. The arrangement I have shown for rotating said shafts The rolls may be is as follows: a shaft 17 suitably jour'naled upon a bracket 18 carried by frame l is profvided with three pulleys 19. 20. 21- (or there 7 may be a single pulley with three grooves),

adapted respectively to receive belts 22, 23,

24. A The belt 22'passes over a pulley 25 on, shaft 10:t-he belt 23 passes over a pulley .26'on shaft 8, and the belt 2 1 passes over the pulley 27 on shaft 9, (Fig. 1), whereby all of said shafts are. driven together in the same direction. Hence, when the folded fabric A passes between'the pairs of'rolls said fabricwillbe' fed in the direction before described. By preference. the pulley 27 is slightlyless in diameter than the pulfaster than the rolls 2, 2, and the rolls 4,

4 rotate slightly faster than the rolls 3, 3, whereby the fabric is taut or slightly tensioned between the several pairs of rolls to facilitate cutting the folded edge a of the ley 26, and the pulley 25 is slightly less in fabric. The shaft 17 shown provided with I I agear 28 in mesh with agear 29 carried by shaft 30"journaled in hearings in bracket 18, the shaft 30 being shown provided with a worm gear 31, (Figs. 3 and 6). A worm 32 is .in mesh with worm'gearl31, which worm'32 is carried by shaft 33 journaled in hearings on bracket 18, said shaft being shown provided with a pulley 34 receiving a belt 35 driven by a suitable motor 36, or by other suitable power driving means (Figs. 3 and 5). 7

Shaft 30 is shown provided with a disk 37 which is cooperative with a circular cutter 38, the peripheries of said disk and cutter opposing in such a way and in such location that when a folded edge portion a of the tubular or foldod fabric A. is fed between the disk and the cutter the fabric will be severed, as indicated at a" in F 2.. The cutter 8 is shown movably supported in such a posit-ionas to; substantially align with the passes between the feeding rolls within. the opposing webs of the tubular or folded fabric A, the disk 37 being shown located exterior to the folded portion a of the fabric, (Fig.1). The cutter 38 is shown journaled upon a pivot 39 carried by an arm 40 that is pivotally supported at 11 upon the main frame. (Fig. 1). The arm 40 is shown providedwith a bifurcated portion 40 in which the cutter 38 is rotatively supported between the jaws at the bifurcation, so as to rotate in a substantially horizontal plane respecting the horizontally disposed .d'isk' The cutter 38 may be normally maintained with resilient pressure againstdisk 37 by any suitable means- I have shown a lever or arm 42 pivotally supported" at 43 upon an extension ftfrom one of the: uprights 7, the upper end of the lever 42 being shown notched at 4:2 to cooperate with the adjacent notched end 40 of arm 40, an expansion spring 45 being shown interposed between the lower end of lever42 and the main frame, serving, to resiliently press the} upper end of lever 42. against the adjacent end of arm 40' for resiliently maintaining the cutter 38 pressed toward disk 87 and thereby against the fabric that is fed be tween said cutter and disk. Projections t6, 47 respectively carried by lever 42 and the main frame guide the corresponding ends of spring 45. and maintain itin operative position. I

At 48 is a roller shown provided at its ends with a loop or bail 4.9- having its ends 49 inturned and entering a .bore in the roller. The roller 48 with its loop or bail is. placed between the webs of the fabric A in position between the rolls 2, 2 and 3, 3, adapted, to operate freely between the webs and torest on the lower web of the fabric,

serving to straighten out. creases that may occirr in the fabric as it passes frombetween the rolls 52, 2 to the rolls 3, 8 The roller i8 is sufficiently large in diameter not to enter between the pair of rolls 8, 3, andthe bail 49 extends toward, the rolls 2, 2 and serves to keep the roller 4.8 in proper positionv between the fabric webs. A

Then theftubular or folded fabric is placed between the feeding rolls its folded edge portion a is passed between the disk 37 and the cutter 38, and since said disk is rotated in the direction of the arrow y in Fig. 1 the cutter 38 will bear against the fabric and will be caused to rotate in the direction of the arrow a by the rotation of the disk, whereby the fabric will be severed in a longitudinal direction as it is fed, and since the arm 40 is located beyond the .cutter in the direction toward the delivery rolls 4, P the opposing webs of the fabric along the severed portion thereof can pass on opposite sides of the arm 40 without interference therefrom. The construction described eniables the severing of long lengthsof tubular or folded fabric in'an accurate and expeditious manner in such a way that the severed edges of the fabric will be clean out. My improvement permits cutting. the folded fabric in alongitudinal direction without stretching the fabric in the direction of the width of the goods.

My invention is particularly adapted for 1 severing tubular lengths of fabric in which the edges of the fabric have been stitched to"- gether for producing so-called bias fabric,-

from which bias binding and tapes may be cut in the longitudinal direction of the fabric. My invention is also applicable to cutting in the longitudinal direction tubular knitted fabrics, and it is also of advantage for longitudinally severing relatively wide pieces of fabric since the same may be fold ed, as between its selvage edges, and fed through my machine, for severing along the fold. 1

( My invention is not limited tofthe'details of construction set forth, as the same may be varied, withinthe scope of the appended claims, without departing from the spirit of my invention.

v Having now described my invention what,

I claim is z- 1. A fabric cuttingmachine comprising means to feed tubular or folded fabric, a cutter mounted tooperate against the folded edge portion of the fabric, and means supporting the cutter between webs of fabric.

2. A machine as set forth in claim 1,; profor severing the fabric. v i V 3. A fabric cutting machine comprisin vided with means cooperative with the cutter means to feed tubular or folded fabric, a

cutter mounted to operate against the folded edgeportion of the fabric, means supporting means to feed tubular or folded fabric, a V

cutter operative against the folded portion of the fabric,'m'ea=ns cooperative with said cutter for severing the fabric, and means resiliently maintaining the cutter and the second named means in cooperation.

6. A fabric cutting machine comprising means to feed tubular or folded fabric, a cutter operative between webs of the fabric and against a folded edge thereof, and means pivotally supporting said cutter, said means being located on the side of the cutter beyond the severed portion of the fabric.

7. A fabric cutting machine comprising means to feed tubular or folded fabric, a cutter operative between webs of the fabric and against a folded edge thereof, and an arm pivotally supporting said cutter between opposing webs of the fabric and against a folded edge thereof, said arm extending from the cutter in the direction away from the folded edge of the fabric permitting the severed webs to pass on opposite sides of the arm during feeding of the fabric.

8. A machine as set forth in claim 7, provided with means to resiliently press the cutter toward the folded edge of the fabric.

9. A machine as set forth in claim 7, provided with a disk cooperative with the cutter and located exterior to the fabric, and resilient means cooperating withthe arm for pressing the cutter resiliently toward the disk.

10. A machine as set forth in claim 7, provided with a disk cooperative with the cutter and located exterior to the fabric,a lever cooperative with said arm, and a spring cooperative with the lever for normally resiliently pressing the cutter toward the disk.

11. A fabric cutting machine comprising pairs of rolls spaced apart adapted to feed.

tubular or; folded fabric therebetween, a cutter located between two pairs of rolls .to sever a folded edge of the fabric,'and a disk located exterior to the fabric to cooperate with the cutter in severing the fabric.

12. A machine as set forth in claim 11', 45

provided with means to rotate the disk.

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