JPS61160404A - Method and apparatus for meshing woven fabric - 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 This invention relates to a perforation method and a perforation device for sewing fabric.

Conventional Technology Conventionally, in order to sew pockets, hooks, buttons, accessories, etc. on the back of clothing, etc., a rotary needle heated by a heater is passed through a large number of laminated fabrics, and at this time, the fabric is formed on the fabric. The seams are sewn using the brown marks as marks.

Problems to be Solved by the Invention In order to perform such perforation work efficiently, it is necessary to increase the number of layers of fabric to be stacked, but this makes it difficult for the rotating needle to pass through the fabric. In particular, if the fabric is clogged, the passage of the rotating needle will be even more difficult. For this reason, the power to rotate the rotating needle increases, and if the rotating needle is screwed in forcibly, thread breakage may occur in the fabric, the rotating needle may overheat, resulting in severe browning of the fabric, and synthetic fibers may melt. Sometimes.

The present invention has been made in view of these points, and provides a method for perforating sewing fabrics that prevents damage to the fabric and allows easy and clear perforation of any tightly packed fabric by laminating a large number of layers. aimed to.

Means for Solving the Problems In the present invention, a pore 31 through which the thread 33 drawn out from the supply section 32 is passed is formed near the tip of the metal needle 14, and a winding section 37 for winding the thread 33 is provided. Further, the metal needle 14 is connected to an ultrasonic vibration source. Further, an impregnated body 25 is provided for adhering a coloring agent to the thread 33.

Furthermore, a slit 28 and a fitting hole 26 are formed in the guide (fixing member) 23, and the impregnated body 25 is fitted into the fitting hole 26 (see FIG. 6).

Further, a detector 41 is provided which detects the retreating movement of the metal needle 14 from the fabric 1 and drives the motor 36 for a certain period of time.

Furthermore, a guide 23 is provided which is interlocked with the sliding body 8 that moves together with the metal needle 14, and a through hole 24 is formed in this guide 23.

As a result, the metal needle 14 passing the thread 33 through the pore 31 is vibrated in the axial direction, and after penetrating the fabric 1 with the metal needle 14, the metal needle 14 and the thread 33 are pulled out from the fabric 1 and the first winding portion 37 to wind up the loosened thread 33.

Effect: Therefore, the large acceleration in the axial direction generated in the metal needle 14 due to the ultrasonic vibration promotes the penetrating action of the metal needle 14 and the thread 33 into the fabric 1. metal needle 1
After the thread 4 is pulled out, the coloring agent of the thread 33 is attached to the fabric 1, and a clear mark can be made as a perforation mark.

Further, by fitting the impregnated body 25 into the guide (fixing member) 23 having the slit 28, the thread 33 can be taken in and out through the slit 28 when replacing the impregnated body 25.

Furthermore, by providing the detector 41, when the metal needle 14 is pulled out from the fabric 1, the motor 36 is driven by the detection signal of the detector 41, and the winding unit 37 causes the thread 3 in the fabric 1 to be
Pull out 3 immediately.

Further, by providing a guide 23 that interlocks with the sliding body 8, swinging of the intermediate portion of the metal needle 14 can be effectively prevented.

Example An embodiment of this invention will be described based on the drawings.

1 is a fabric made of multiple layers. A see-through window 3 is formed in the base 2 that presses these fabrics 1, and a transparent plate 5 having small holes 4 is provided in the see-through window 3. Further, two shafts 6° 7 are erected on the base 2, and a slider 8 is fitted to one of the passing shafts 6 so as to be slidable while being biased upwardly by a spring 9. A case 12 with a built-in ultrasonic vibrator 11 is attached to the support 1° fixed to the case 8.
and a push button switch 13 are provided. Further, a holder 15 that holds a metal needle 14 is connected to this ultrasonic vibrator 11. Furthermore, a cable 16 is held at the upper end of the case 12 to connect the ultrasonic vibrator 11 to an ultrasonic vibration source (not shown).

Further, a cylindrical body 17 that is slidably fitted onto the shaft 7 is connected to the slider 8 . Furthermore, the upper end of the shaft 6.7 is fixed by a screw 20 to a fixture 19 having a handle 18.

Next, two guide shafts 21 are erected on the base 2, and a guide 23 having a bush 22 that fits on these guide shafts 21 is provided. This guide 23 has a metal needle 1
A through hole 24 through which the 4 is passed is formed. The guide 23 also serves as a fixing member that holds the impregnated body 25.6 In other words, as shown in FIGS. Matching hole 26
A small hole 27 opening at the center of the bottom and a slit 28 opening at the outer surface are formed. The impregnated body 25 is made of a sponge or the like, has a cut 29 from the outer periphery toward the center, and is impregnated with a coloring agent.

Thus, a groove 30 and a pore 31 opening at the lower end of the groove 30 are formed in the metal needle 14 in the axial direction. Then, the thread 33 pulled out from the supply section 32 is transferred to a pulley 34.
The metal needle 14 is guided through the impregnated body 25, and then passed through the pore 31 of the metal needle 14 and guided to the pulley 35, whose tip is wound around a drum-shaped winding part 37 driven by a motor 36. There is.

Further, the guide 23 is suspended from the slider 8 by a chain 38 or a thread. Furthermore, a stopper 40 is fitted onto the shaft 7 and is fixed at an arbitrary position by an adjusting screw 39. This is for adjusting the stroke of the slider 8. Furthermore, a backing plate 42 is fixed to the slider 8, which presses the actuator of a switch 41, which is a detector attached to the fixture 19, to turn on the switch 41. When this switch 41 is turned on, it maintains the motor 36 in a driving state for a certain period of time.

In such a configuration, the handle 18 is held, the fabric 1 is held down by the base 2, the push button switch 13 is pressed to connect the ultrasonic vibration source to the power source, and the ultrasonic vibrator 11 is driven to move the metal needle 14 in the axial direction. The case 12 is vibrated and the case 12 is lowered together with the slider 8 by hand.

The large acceleration in the axial direction generated in the metal needle 14 due to the ultrasonic vibration at this time can promote the penetrating action of the metal needle 14 and the thread 33 into the fabric 1. At this time, the metal needle 14 pulls out the thread 33 from the supply section 32 and draws it into the fabric 1. By vibrating the metal needle 14 when pulling it out from the fabric 1, the resistance can be reduced and the metal needle 14 can be pulled out easily. At this time, by raising the slider 8, the cover plate 42 turns on the switch 41. Due to this.

The motor 36 is driven for a certain period of time, and the winding unit 37 pulls out the thread 33 in the fabric 1 and winds it up. This switch 41 is ON
If the ultrasonic vibration source is not connected to the power supply even if the push button switch 13 is pressed in this state, no-load operation can be prevented and the metal needle 14 can be protected. And metal needle 14
The coloring agent of the thread 33 adheres to the fabric 1 after it has been pulled out, and this mark becomes a mark for perforation.

Therefore, even when perforating any fabric 1, even when a large number of fabrics 1 are laminated, perforation can be easily performed without damaging the fabric 1 with the vibrating metal needle 14. Note that the ultrasonic vibrator 11 may be vibrated intermittently. Thereby, it is possible to concentrate the peak amplitude and acceleration at the rise of the start of vibration generation, and further promote the penetration of the metal needle 14.

Further, since the guide 23 is linked to the slider 8 by a chain 38, the intermediate portion of the metal needle 14 is always held.

Bending and breaking of the metal needle 14 can be more effectively prevented.

Since the color of the coloring agent in the impregnated body 25 differs depending on the color of the fabric 1, the impregnated body 25 is replaced for each guide 23.

During this exchange, the thread 33 is taken in and out through the cuts 29 and slits 28. Further, the guide 23 may be provided with a lid that covers the impregnated body 25 within a range that does not obstruct the passage of the thread 33, thereby preventing the colorant from evaporating.

When replacing the metal needle 14, remove the case 1 from the support 10.
Remove 2 and do it.

Effects of the Invention Since the present invention is configured as described above, by penetrating the fabric with a metal needle that vibrates in the axial direction by an ultrasonic vibration source, it is possible to easily cut a large number of fabrics using the large acceleration generated in the metal needle. This can prevent the fabric from being damaged and the metal needle from bending or breaking.Also, by passing the thread to which the coloring agent adheres to the metal needle, the fabric can be clearly perforated. Furthermore, since the impregnated body is fitted into the fitting hole of the fixing member in which a slit is formed, the impregnated body can be easily replaced, and furthermore, the metal needle can be easily removed from the fabric. By installing a detector that detects movement and drives the motor, the yarn in the fabric can be quickly pulled out and wound.
Furthermore, by forming a through hole through which the metal needle passes through the guide linked to the slider, it is possible to more effectively prevent the metal needle from bending or breaking.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show one embodiment of the present invention, in which Fig. 1 is a partially cutaway front view, Fig. 2 is a partially cutaway side view, and Fig. 3 is a metal needle. Figure 4 is an enlarged longitudinal side view of a part of the metal needle, Figure 5 is an enlarged plan view of a part of the guide, and Figure 6 is a part of the guide and impregnation. It is an exploded perspective view showing a body. 1... Fabric, 8... Slider, 14... Metal needle 23
...Guide (fixing member), 24...Through hole, 25...
- Impregnated body, 26... Fitting hole, 28... Slit, 3
DESCRIPTION OF SYMBOLS 1... Pore, 32... Supply part, 33... Thread, 36
... Motor, 37 ... Winding section, 41 ... Switch (detector) 3" Figure

Claims (1)

[Claims] 1. A thread coated with a coloring agent is passed through a pore formed near the tip of a metal needle, and the metal needle is vibrated in the axial direction by an ultrasonic vibration source. A method for perforating sewing fabric, characterized in that a metal needle that vibrates in the direction is passed through a large number of laminated fabrics, and then the metal needle and thread are pulled out from the fabric. 2. A metal needle that moves in the axial direction together with the slider and penetrates the laminated fabric is connected to an ultrasonic vibration source so that it can freely vibrate in the axial direction, and a pore is formed near the tip of the metal needle. , a winding part is provided for winding the thread pulled out from the supply part and passed through the pore, and an impregnated body impregnated with a coloring agent is provided in the path of the thread between the pore and the supply part. A perforation device for sewing fabric, characterized in that it is provided in contact with the thread. 3. A metal needle that moves in the axial direction together with the slider and penetrates the laminated fabric is connected to an ultrasonic vibration source so that it can vibrate freely in the axial direction, and a pore is formed near the tip of the metal needle. , a winding part is provided for winding the thread pulled out from the supply part and passed through the pore, and an impregnated body impregnated with a coloring agent is provided in the path of the thread between the pore and the supply part. A perforation device for sewing fabric, characterized in that a fixing member is provided, in which a fitting hole for holding the impregnated body is formed, and a slit for guiding the thread to the fitting hole is formed on the outer surface of the fixing member. . 4. A metal needle that moves in the axial direction together with the slider and penetrates the laminated fabric is connected to an ultrasonic vibration source so that it can freely vibrate in the axial direction, and a pore is formed near the tip of the metal needle. , a winding part for winding the thread drawn out from the supply part and passed through the pore is provided in connection with a motor, and a coloring agent is impregnated in the path of the thread between the pore and the supply part. The sewing machine is characterized in that the impregnated body is provided in contact with the thread, and a detector is provided that detects the retreating movement of the metal needle from the fabric and outputs an electric signal to drive the motor for a certain period of time. Fabric perforation device. 5. A metal needle that moves in the axial direction together with the slider and penetrates the laminated fabric is connected to an ultrasonic vibration source so that it can freely vibrate in the axial direction, and a pore is formed near the tip of the metal needle. , a winding part is provided for winding the thread pulled out from the supply part and passed through the pore, and an impregnated body impregnated with a coloring agent is provided in the path of the thread between the pore and the supply part. A guide is provided in contact with the thread and interlocks with the slider between the base of the metal needle and the fabric, and a through hole is formed in the guide to allow the intermediate portion of the metal needle to pass through. Perforation device for sewing fabric.