JPH09299633A - Cutting device for long-sized cloth - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cutting device for a long-sized kilted cloth ensuring the freedom of the cut edge of the cloth from coming loose. SOLUTION: A device for cutting a kilted cloth 7 is formed out of a device for feeding every preset length of the cloth 7 to a cutter via rollers 20 and 21, a presser means (rollers 20 and 21 and presser rod 25) for pressing the front and rear parts of the cutting line of the kilted cloth 7 as fed, and another cutter 8 to reciprocate a double-needle sewing machine along the breadthwise direction of the cloth 7 between the pressed parts for stitching two seams along the cutting line, and cutting a part between the stitched seams with a disc type cutter, following the operation of the sewing machine.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention prevents breakage of a cutting edge of a long raw material formed by stacking and sewing at least two fiber cloths, improves workability and safety in the next step, and The present invention relates to a cutting device that improves the finish of sewn products.

[0002]

2. Description of the Related Art When a long raw fabric (hereinafter referred to as a quilt raw fabric) in which at least two fiber cloths are stacked and sewn together is used as a product for a bed pad or a futon, the quilt raw fabric is cut into a certain size. In the next process, the sewing process is performed to make it the target product, but the cut edges of the cut quilt original fabric remain.

[0003]

As described above, if the cut edge of the quilt original fabric is left as it is, the sewing thread quilted from the cut edge during transfer to the next step or in the process of the next step. The cotton wool breaks down, the workability and safety of sewing are lost, and the cotton wool adheres to the surface of the finished product to deteriorate the finish of the sewn product.

In view of the above problems, it is an object of the present invention to provide a device for cutting a long original fabric in which the cutting edges of the cut quilt original fabric are not broken.

[0005]

In order to solve the above-mentioned problems, the present invention is a device for cutting a long original fabric in which at least two fiber cloths are overlapped and sewn, and the same original fabric is set for each set length. Device for feeding to the cutting machine, means for pressing the front and rear of the cutting line of the fed long raw fabric, and reciprocating the two-needle sewing machine with a cutting mechanism in the width direction of the long raw fabric while pressing In this configuration, a two-row sewing machine is hooked along the cutting line, and a cutter is provided that follows the sewing machine hook and cuts between the sewing machine hooks with a cutter.

In the present invention configured as described above,
A sewing machine is hung along the cutting edge in parallel with the cutting edge, and the cutter, which follows the sewing operation and cuts, runs in the width direction on the quilt web and cuts, so the cutting edge is pressed by the sewing thread. Therefore, the sewing thread for quilting and the blanket of wool, which is the content, are not broken, the workability and safety of the next process are improved, and the finished product is also good.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings. Reference numeral 7 is a quilt raw material fed from a supply stand (not shown). A tension fluctuation absorbing device 1 including an entrance roller 4, an intermediate dancer roller 5, and an exit roller 6 is installed in order to absorb the fluctuation in tension of the unrolled quilt web 7.

The quilt material 7 that has passed through the exit roller 6 is
It is sandwiched by feed rollers 20 and 21 driven by a motor 23 via a belt 22, and fed to a cutting machine 8 supported by a frame 2, and further passes through the cutting machine 8 to be on a belt conveyor 3 of a predetermined length. It is fed and stopped (The feed length is controlled by installing a tip position detection sensor S of the quilt original on the belt conveyor 3 and controlling the drive of the feed rollers 20 and 21 by the detection signal of this position detection sensor S. I am doing so.). A press rod 25 for pressing the fed quilt web 7 is attached to the frame 2 so as to be able to move up and down by an air cylinder 24, and moves downward while pressing to press the quilt web 7.

A two-needle sewing machine 8a with a cutting mechanism installed in the above-mentioned cutting machine 8 has two needle bars 8m and 8m on a frame head 82h and sewing needles 8l and 8l attached to the needle bar 8m. It is equipped with a mechanism (not shown) for actuation. A presser bar 8p extends downward from the frame head 82h behind the two needles 81 and 81, and a presser bar 8n is attached to the lower end of the frame bar 82h. The two-needle sewing machine 8a with the cutting mechanism has a frame arm 82a. The pulley 8 fitted to the rear end shaft is connected to the motor 8 via the belt 8h.
driven by g.

The disc-shaped cutter 8i of the cutting mechanism passes between the two sewing machine needles 8l and 8l, and both needles 8
It is provided rearward on a line orthogonal to the line connecting the centers of 1 and 8l. The disk-shaped cutter 8i is a cutter drive motor 8 attached to the side surface of the frame arm 82a.
Driven by the gearbox 8k via the gearbox 8k, the output shaft of the gearbox 8k extends into the pocket of the frame arm 82a in the direction orthogonal to the longitudinal axis of the frame 82, and the output shaft of the gearbox 8k has a disc shape so as to be in the above-mentioned position. The cutter 8i is fitted and fixed.

In the above embodiment, the disk-shaped cutter 8i
A dedicated motor 8j for driving the frame arm 82
Although attached to the side surface of a, the drive motor 8g of the sewing machine can be used as the drive source. Further, the shape of the cutter is not limited to the disk shape, and other shapes can be appropriately adopted.

The cutting machine 8 has a mechanism for reciprocating the two-needle sewing machine 8a with a cutting mechanism in the width direction of the unrolled quilt web 7, and the two-needle sewing machine 8 with a cutting mechanism is provided.
a is attached to the base plate 8d integrated with the base 8c via the base 8c, and slide shoes 8e are attached to both ends of the base plate 8d, and the slide shoes 8e are on the rail 9.

A ball nut 8f is mounted on the frame 8c in parallel with the longitudinal axis of the sewing machine frame 82 with its axis aligned, and a ball screw 8o is screwed into the ball nut 8f and both ends thereof are fixed by bearings 11 and 12. It is supported and driven by a motor 14 via a belt 13. The ball screw 8o is normally and reversely rotated by the screw drive motor 14 via the belt 13 to reciprocate the two-needle sewing machine 8a with a cutting mechanism. The substrate 8d
The upper motor 8g is a drive source of the two-needle sewing machine.

When the quilt material 7 is cut, the motor 19 of the belt conveyor 3 is driven, the conveyor belt sheaves 15 and 17 are rotated via the belt 18, and the conveyor belt 1
6 is moved in the direction of the arrow and the cut quilt web is sent out.

[0015]

As described above, according to the present invention,
A sewing machine is hooked along the cutting edge in parallel with the cutting edge, and the cutter rolls across the quilt web in the width direction to cut along with the sewing thread, so the cutting edge is pressed by the sewing thread. The sewing thread for quilting and the blanket of wool, which is the content, are not broken, and the workability and safety in the next process are improved, and the finished product is also good.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment.

FIG. 2 is a front view of the same.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a front view of a two-needle sewing machine with a cutting mechanism.

FIG. 5 is a side view of the same.

[Explanation of symbols]

 1 Tension fluctuation absorbing device 2 Frame 3 Belt conveyor 7 Quilt original fabric 8 Cutting machine 20, 21 Feed roller 25 Holding rod 8a Two needle sewing machine with cutting mechanism 8f Ball nut 8i Disc cutter 8l Sewing needle 8o Ball screw

Claims (1)

[Claims] 1. A device for cutting a long original fabric in which at least two fiber cloths are overlapped and sewn together, and a device for feeding the same original fabric to a cutting machine for each set length and a device for feeding the long original fabric. A means for pressing the front and back of the cutting line and a two-needle sewing machine with a cutting mechanism are reciprocally moved in the width direction of the long raw fabric between the pressing lines to perform two sewing machine hooks along the cutting line. A long raw fabric cutting device comprising a cutting machine that follows the sewing machine and cuts between the sewing machine hooks with a cutter.