JP2974456B2 - Belt loop attaching method with two needle sewing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt loop attaching method using a two-needle sewing machine.

[0002]

2. Description of the Related Art FIGS. 8 and 9 show a conventional two-needle sewing machine with a belt loop attaching machine, wherein 1 is a two-needle sewing machine, 2 is a fabric, and 3 is a belt loop sewn on the fabric 2.
4b is a belt loop presser, 5 is a sewing machine table, 6 is 2
Needle clasp having this needle, 7 is a needle plate, 8 is a slide plate, 9a,
9b is a shuttle shaft stand.

In such a belt loop attaching machine, a belt loop 3 of a certain length sewn in another process is cut into a certain length by a knife 10 composed of a moving knife and a fixed knife, and a claw 11 is formed.
Is supplied to the needle base of the two-needle sewing machine 1 by the transfer drive unit 12, and the belt loop 3 is pressed onto the table 5 together with the cloth 2 by the pressers 4 a and 4 b, and the two-needle Sewing is performed by sewing machine 1.

[0004]

SUMMARY OF THE INVENTION As described above, the conventional 2
When the length of the belt loop 3 is changed, the interval between the needles of the two needles to be sewn needs to be changed in the belt loop attaching machine using the needle stitch machine. Therefore, the needle clamp 6, the needle plate 7, and the slide plate 8 need to be replaced. In addition, it was necessary to move the pressers 4a and 4b and the shuttle shaft holders 9a and 9b. Although not shown, it is known that the slide plate 8 is divided into a fixed slide plate and a movable slide plate, and the interval can be adjusted by hand.
The replacement of the needle holder 6, the needle plate 7 and the movement of the presser 4b, the movable slide plate, and the shuttle shaft stand 9b are still required, and have a very troublesome disadvantage.

The present invention has been made to eliminate the above disadvantages.

[0006]

Two-needle sewing machine according to the belt loop with the method of the present invention According to an aspect of the integrally two presser and two sliding plates and polymerized belt loops and fabric Ri by the <br / > a first step allowed to clamping, with one to be moved toward the other belt loops and fabric of the pressing and sliding plate
A second step of loosening the cloth and setting a predetermined interval corresponding to the needle interval of the staple, and pressing the belt loop and the cloth.
To a third Engineering <br/> enough for sewing remains clamped state by the slide plate, characterized by comprising more the fourth step allowed to return to its original position one of the pressing and sliding plate.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

In order to carry out the method of the present invention, for example, FIG.
Use an automatic machine with a belt loop as shown in (1).

In this automatic belt looping machine, the pressers 4a and 4b are lifted by presser driving units 17a and 17b.
Lowering is possible, and one presser 4b and movable slide plate 8
b is integrally fixed to one bracket, and can be simultaneously moved in the direction of the arrow by the movement drive unit 16 via the slide unit 14. 21 is the presser foot 4a, 4
This is a stopper for regulating the movement of the presser 4b fixed to the holding plate 15 between the positions b.

The fixed slide plate 8a is fixed to the holding plate 15 together with the presser 4a, and the holding plate 15 is mounted on the sewing machine table 5 movable in the X and Y directions. XY above
The movement is performed by a mizo cam in the cycle sewing machine. A long hole 18 is formed in the center of the needle plate 7, and a push-up plate 20, which can vertically penetrate the long hole 18 by a driving unit 19, is provided in the middle of the shuttle shaft holders 9 a and 9 b.

The initial position of the moving drive unit 16 can be adjusted by loosening the nut 22, and the stroke (top dead center position) of the push-up plate 20 can be adjusted by loosening the nut 23.

In the present invention, the interval between the needles fixed to the needle holder 6 and the interval between the hooks of the hook shaft axles 9a and 9b are set to be equal so that the belt loop 3 having the minimum length can be sewn. When the longer belt loop 3 is to be sewn, the movable slide plate 8b and the presser 4b are arranged at intervals so as to correspond to the length of the belt loop 3, and both slide plates 8a, 8b and both presser Dough 2 between 4a and 4b
And the belt loop 3 are arranged so as to overlap as shown in FIG. Presser 4a, 4b by presser drive 17a, 17b
With the belt loop 3 firmly fixed to the fabric 2, the presser 4 b and the movable clamp 8 b are moved by the moving drive unit 16 in the direction of the arrow as shown in FIG. The push-up plate 20 is lifted by the drive unit 19 in synchronization with this operation, and FIG.
From the state shown in FIG.

Next, the sewing machine 1 is started, and a seam 24 as shown in FIG. 6 is formed.

After the sewing by the sewing machine 1, the presser 4a,
4b, the push-up plate 20 is lowered, and the belt loop 3 sewn in the state of FIG. 5 is made flat as shown in FIG.

[0015]

Since the present invention is as described above, even if the length of the belt loop is changed, it is not necessary to replace the needle stay 6 and the needle plate 7 each time, and the shuttle shaft stand 9b is moved and adjusted. There is no need, and the belt loop can be quickly attached.

After the belt loop 3 is clamped together with the cloth 2 by the fixed and movable slide plates 8a and 8b with the pressers 4a and 4b, the presser 4b and the movable slide plate 8b are respectively held by the pressers 4.
When moving the push-up plate 20 through the long hole 18 of the needle plate 7 by urging the drive unit 19 to move the slide plate 8a in the direction approaching the fixed slide plate 8a, there is a great advantage that the above movement can be easily performed. .

The push-up plate 20 is a means for assisting the movement of the presser, and is necessary when the cloth and the belt loop are thick and waisted. If so, it is not necessary.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a belt loop attaching machine using a two-needle sewing machine used for carrying out the method of the present invention.

FIG. 2 is a process explanatory view of a belt loop attaching method using a two-needle sewing machine according to the present invention.

FIG. 3 is a process explanatory view of a belt loop attaching method using a two-needle sewing machine according to the present invention.

FIG. 4 is an explanatory view of a process of a belt loop attaching method using a two-needle sewing machine according to the present invention.

FIG. 5 is an explanatory diagram of steps of a belt loop attaching method using a two-needle sewing machine according to the present invention.

FIG. 6 is an explanatory diagram showing steps of a belt loop attaching method using a two-needle sewing machine according to the present invention.

FIG. 7 is a perspective view showing a stretched belt loop and a seam.

FIG. 8 is an explanatory view of a conventional belt loop attaching machine using a two-needle sewing machine.

FIG. 9 is an explanatory view of a conventional belt loop attaching machine using a two-needle sewing machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 2-needle sewing machine 2 Fabric 3 Belt loop 4a Belt loop retainer 4b Belt loop retainer 5 Sewing machine table 6 Needle retainer with 2 needles 7 Needle plate 8 Slide plate 8a Fixed slide plate 8b Movable slide plate 9a Hook shaft 9b Hook shaft Table 10 Female 11 Claw 12 Transfer drive unit 13 Belt loop pull-out device 14 Slide unit 15 Holding plate 16 Movement drive unit 17a Press drive unit 17b Press drive unit 18 Slot 19 Drive unit 20 Push-up plate 21 Stopper 22 Nut 23 Nut 24 stitch

Claims (2)

(57) [Claims] [Claim 1] two of the pressing and Ri by the and two of the slide plate
The first allowed to integrally sandwiched polymerized belt loop and fabric
A first step, a second step of occupying become predetermined intervals corresponding to the needle spacing HariTome causes are moved towards one of the pressing and sliding plate on the other slacken the belt loops and fabric, the belt Hold the loop and the fabric between the presser and the slide plate
A third step of sewing in the state of being held, and returning one of the presser and the slide plate to the original position.
A belt loop attaching method using a two-needle sewing machine, comprising a fourth step. 2. A step of clamping the belt loop together with the cloth by two pressers and two slide plates, and moving one of the presser and the slide plate toward the other to correspond to the needle interval of the stitches. A step of pushing up a substantially intermediate portion of the belt loop together with the cloth at the same time as a predetermined interval, a step of sewing the belt loop to the cloth, and a step of returning one of the presser and the slide plate to the original position. A belt loop attaching method using a two-needle sewing machine.