JPS63203191A - Cloth fray treatment apparatus in automatic surging machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a fabric fraying device for an automatic surging machine for removing frayed fabrics such as serge fabrics and gabardine fabrics having thick woven threads.

In general, for cloth with thick weaving threads such as serge cloth or gabardine cloth, when the cut cloth 1 is moved from the cutting table to the sewing process after cutting as shown in FIG. Therefore, even if an overlock stitch 4 is applied to the cut edge 2 in the serging process as shown in FIG. It cannot be completely cut with a scalpel. Therefore,
Cut cloth 1 with overedge stitch 4 as shown in Figure 6(a)
After putting the two pieces together and performing ground stitching 5, when the cut fabric 1 is turned over at the ground sewing part, the weaving thread 3 coming out from the hem 4 will come out on the front side as shown in Fig. 6(b). Therefore, the weaving thread 3 has to be cut off as thread waste using hand scissors or the like, resulting in a problem of extremely low work efficiency.

In order to solve the above-mentioned problems, the present invention cooperates with the cloth feed of the cloth feed teeth to remove the fraying of the cutting edge of the cut piece of cloth, and removes the fraying in the cloth feed direction of the presser foot. In an automatic serging machine, a sewing machine applies a serging hammer to the cut end while cutting with a knife installed in the knife, and a two-pronged suction port connected to a vacuum pump is connected to the vacuum pump at a distance in front of the knife in the cloth feeding direction. It is characterized in that it is provided close to the cut end, and is arranged so that the cut end of the cloth piece can pass through the two-pronged suction port while being sucked, so that the frayed thread can be pulled out in the suction direction and cut with the scalpel. shall be.

According to the present invention, a two-pronged suction port is provided at the front of the scalpel in the cloth feeding direction to pinch the cut end of the cut cloth at an interval, so that any frayed weaving threads are removed from the cut end of the cut cloth. , because it is pulled out in one direction by suctioning at the suction port,
Since it can be easily cut with a scalpel and then overlocked, no frayed threads will come out from the overseam, so even if two pieces of cloth are sewn together and turned back together, no threads will come out. do not have.

Fig. 1 is a schematic perspective view of an automatic surging machine according to one embodiment of the present invention, and Fig. 2 is a sectional view of the main part of Fig. 1, with the table 6
A sewing machine consisting of a presser foot 7, a needle bar 8 equipped with a needle, and a knife 9 is provided on the top.

Further, the cut cloth 10 is sent in the cloth feeding direction shown by the arrow, and a hole 11 is provided in the table 6 in front of the knife 9 in the cloth feeding direction to which this cloth 10 is fed, as shown in FIG. Cutting section of cloth 10 cut as shown and table 5
A suction port 12 with a bifurcated tip that can be passed through by feeding the cloth is provided on either side of the suction port 12 .

This suction port 12 is connected by a hose 13 to a suction tank and a vacuum pump for separating thread waste.

In the automatic surging machine of this embodiment configured as described above, when the main switch is turned on, the electronic control device, vacuum pump, and sewing machine motor are operated, and the air pressure in the suction tank is increased. At this time, the suction force is adjusted so that the suction port 12 does not suction the frayed thread too rapidly. Here, when the cut end 10a of the cut cloth 10 is inserted into the suction port 12, the cut end 10a of the cloth 10 is inserted as shown in FIG. 3(a).
The frayed threads 10b are suctioned, and all the frayed threads 10b are
are aligned in the suction direction as shown in FIG. 3(b). When the cloth 10 is fed further, a photoelectric switch is activated in front of the knife 9 of the sewing machine, and the sewing machine is driven, and the knife 9 and the feed dog are also activated, so that the cloth 10 is fed as shown in FIG. 3('c).
The frayed threads 10b aligned at the cutting cut 10a are all cut by the scalpel 9. After that, the cutting section 10a of the cloth 10 is
An overlock stitch is applied by a sewing machine.

In this way, in the automatic surging machine of this embodiment, the cloth 10
By suctioning the frayed threads 10b coming out from the cutting cut 10a with the suction port 12 and aligning them in the same direction, all the frayed threads 10b can be cut and removed with the scalpel 9. Since the loose thread 10b does not come out at all, there is no need for a fuzz removal process after sewing, which has the advantage of improving work efficiency and improving the quality of the product.

In addition, in the description of the above embodiment, the cutting cut 10a of the cloth 10
By passing it through the bifurcated suction port 12, the cutting port 10a
Although the frayed threads 10b are aligned in the same direction by suction, the frayed threads 12b at the cutting edge 12a may be aligned in one direction by blowing air from an compressor from above and below the cloth 10.

Effects of the Invention As is clear from the above explanation, the present invention pulls out the frayed threads coming out of the cutting edge of the cloth in the suction direction so that they can all be cut with the scalpel of the sewing machine. Since no frayed threads come out of the sewn fabric, there is no need for the fluff removal process that was conventionally performed after sewing, which has the advantage of improving work efficiency and quality.

[Brief Description of the Drawings] Fig. 1 is a schematic perspective view of an automatic surging machine according to an embodiment of the present invention, Fig. 2 is a sectional view of the main part of Fig. 1, and Fig. 3 is a cross-sectional view of the main parts of Fig. 1 and 2. Figure 4 is a plan view of the cut cloth, Figure 5 is a plan view of the cloth with overlock stitches applied to the periphery, and Figure 6 explains the drawbacks of the conventional example. This is a diagram for 6... table, 7... presser foot, 8... needle bar, 9
...Female. 10... Cloth, 11... Hole, 12... Suction port, 13
···hose. d 211 Figure 3

Claims (1)

[Claims] An automatic machine that works with the fabric feed of the cloth feed dog to remove frayed edges of the cut pieces of cloth using a knife installed in front of the presser foot in the cloth feed direction, and then overlocks the cut edges with a sewing machine. In the serging machine, a two-pronged suction port connected to a vacuum pump is provided at a distance in front of the knife in the cloth feeding direction, close to the cutting cut, and the cut cut of the cloth piece is inserted into the two-pronged suction port. A frayed fabric processing device for an automatic surging machine, characterized in that the frayed thread is disposed so that it can pass through while being suctioned, and the frayed thread can be pulled out in the suction direction and cut with the scalpel.