KR102137134B1 - The apparatus for punching vehicle seat sheet - Google Patents

Abstract

The present invention relates to an apparatus for punching a vehicle seat sheet to smoothly suck and discharge sheet cut tips to the outside of a punch through the inside without being spread. According to the present invention, the apparatus for punching a vehicle seat sheet comprises: a punching head (4) including an elevation rod moving in a vertical direction and the punch disposed on an end of the elevation rod; a base (6) including a reception member to receive the punch lowered in accordance with a downward movement of the elevation rod; a holding frame (14); and a shock absorption member feeder (8) feeding a tape-shaped shock absorption material having a wider width than at least a processing area of the punch while changing the position of tape-shaped shock absorption material aside for each elevation operation of the punch.

Description

The apparatus for punching vehicle seat sheet{The apparatus for punching vehicle seat sheet}

The present invention relates to a punching device for a car seat fabric, and more particularly, to a punching device for a car seat fabric for punching a sheet fabric having a cushion material such as a sponge adhered to leather to form a specific pattern on the car seat.

The car seat providing the driver's safety and comfort, when the state in close contact with the driver's body is maintained for a long time, the breathability is greatly reduced. .

Moreover, as the body temperature of the area in contact with the seat rises, sweat is generated, which increases the discomfort felt by the driver, which acts as a factor that directly inhibits the concentration of driving. An automobile seat in which a large number of small ventilation holes as shown in FIG. 1 is formed on a seat fabric such as leather so that a cool wind passes through the hips has been proposed.

Here, a device that implements the function of venting through the above-mentioned ventilation holes and adds a sign or pattern that expresses a certain meaning or aesthetics to satisfy the decorative aspect and thereby have a good influence on the interior of a car, basically The same as the configuration and operation of the electric sewing machine, but instead of the needle driven up and down from the lower end in the electric sewing machine, the inside maintains a hollow state to form a large number of small ventilation holes and punches to discharge cutting tips generated during this process There is a difference.

Specifically, in International Publication No. 2015/076389 (invention name: embroidery sewing machine with a punching head), in performing a punching process with a punching head to a workpiece such as a leather sheet, the tip of the punch blade is cut from the punching head. On the receiving base, a resin sheet with a thickness of about 0.5 mm was placed as a cushioning material, and a leather sheet was placed on the resin sheet, overlapped and set on a holding frame, and then the leather sheet and the resin sheet were placed. By performing the punching treatment with a punch blade at a time, prevention of damage to the punch blade, reliable punching treatment and noise suppression during drilling are achieved.

Here, the used resin sheet has a punched trace at the site where the punching treatment was performed, and as the concave portion by the punched trace deepens, the certainty of punching decreases, and the sheet shrinks due to irregularities due to the punched trace, resulting in a wavy state. do.

For this reason, it is desirable to replace the leather sheet with a new one every time, but considering the cost of the resin sheet, it is discarded after being reused several times within a range that does not affect the quality of drilling.

However, it was necessary to move to the next process smoothly while still maintaining the puncture quality while suppressing the waste of the cushioning material.

From this, Patent No. 1927039 (Invention name: punching device and embroidery sewing machine equipped with the punching device) includes, as shown in Fig. 2, a vertically moving lifting rod and a punch (perforating tool) provided at the tip of the lifting rod. The receiving head 4 and the receiving base 6 which is disposed under the drilling head 4 and includes a receiving member that receives a punch that descends according to the lower movement of the lifting rod, and the punching and receiving base 6 And a holding frame 14 which is pulled and held in the direction of a surface intersecting with the vertical direction of the hoisting rod, and is moved and controlled in a two-dimensional direction in the left and right directions orthogonal to the front-rear direction and the front-rear direction among the surface directions, The tape-shaped cushioning material between the workpiece held by the holding frame 14 and the upper surface of the receiving member and which is at least wider than the processing area of the punch is positioned from the front-rear direction, and the position of the tape-like cushioning material for each punching operation. Disclosed is a perforating apparatus comprising a tape supply mechanism 8 (buffer supply mechanism) that is supplied while being left out.

Here, as shown in FIG. 3, a punching blade 17b is formed at a lower end of the main body 17a, and a mounting portion 17c is formed at an upper end of the main body 17a. By inserting the mounting portion 17c of the punch 17 into the lower end of the lifting rod 15 and tightening the screw 19 of the needle holder 18, the punch 17 is fixed to the lifting rod 15.

In addition, the cushioning material supply mechanism 8 is provided with a reel 54 and a transfer part 37 as shown in FIG. 4.

A cushioning material (H) is wound on the reel (54), and is supported along the front-rear direction to a frame supporting the receiving base (6) at a position below the perforated head (4).

In addition, the transfer part 37 supplies the cushioning material H between the workpiece held by the holding frame 14 and the upper surface of the receiving member.

A perforation process is performed as follows according to the perforation pattern data with the perforation device having the above configuration.

First, when the leather sheet is moved to the position where the perforation treatment is performed, the punch 17 of the perforation head 4 descends, and the leather sheet is inserted and passed (at this time, the punch 17 is attached to the tape-shaped buffer material H). Abuts the punch marks). Then, as the punch 17 rises and falls out of the leather sheet, the leather sheet is punched.

After the punch 17 is released from the leather sheet, the leather sheet moves to the next punched position, and the motor 40 of the transfer section 37 is operated until the punch 17 is inserted into the leather sheet. Thus, the tape-shaped cushioning material H is sent in the carrying-out direction, and the surface of the tape-like cushioning material H on the receiving member 30b of the punch stand 30 is put out.

By repeating the above process, the tape-shaped cushioning material (H) is sent at a predetermined pitch for each punching process, and the surface of the tape-shaped cushioning material (H) is placed on the receiving member (30b) of the punching table (30). Will be. Moreover, the used tape-shaped cushioning material H which is taken out is collected from the lower portion of the lower frame 7.

In the above drilling device, the buffer material supply mechanism 8 is supplied because the tape-like buffer material H having a width larger than the processing area of the punch 17 is supplied with the position of each punch 17 raised and lowered. Waste of the tape-shaped cushioning material H can be suppressed.

In addition, since the tape-shaped cushioning material H in which the punch marks remain is sequentially delivered, it is possible to suppress that the certainty of the drilling process is poor due to unevenness due to the punch marks. That is, it is possible to keep the puncture quality constant.

Moreover, since the tape supply mechanism 8 is configured to supply the tape-shaped cushioning material H separately from the leather sheet (workpiece) held by the holding frame 14, the leather sheet after the perforation treatment is processed to the next step. It becomes easy to implement.

However, unlike the case where the leather sheet is punched, the above punching device is shown in FIG. 5 to solve the problem of wrinkles as the number of times of getting on and off increases as the driver uses the leather used as the fabric for a long time. As described above, the cushioning material 120, such as a sponge of elastic material having a lower density than leather, is adhered to the back surface of the leather 110 to prevent the lift of the leather 110, while restoring and repelling power according to the elasticity of the cushioning material 120 In the case of punching the sheet fabric 100 that prevents wrinkles by preventing the leather 110 from stretching by alleviating the force received during the lifting, the sheet fabric 100 adheres the cushioning material 120 as shown in FIG. 6. As it is the leather 110, the density and the material are different, and the volume is swollen at the moment of cutting by the punching of the punch 17, and the entire fabric cutting tip is not sucked out through the punch 17 but partially exposed to the outside. Becomes

And by continuous punching, as shown in FIG. 7, the fabric cutting tip exposed outside the punch 17 is left on the surface of the sheet fabric 100 or blocks the punching hole, and the operator separately removes the work after punching. There should also be a problem that can lead to defects if it can not be completely removed even if such work.

International Publication No. 2015/076389 (Invention name: Embroidery sewing machine with a perforated head) Patent No. 1927039 (Invention name: Perforating device and embroidery sewing machine equipped with the perforating device)

The present invention is to solve the above problems, when punching a sheet fabric in which a cushioning material such as a sponge is adhered to leather by punching a tape-shaped cushioning material up and down, the upper cushioning tape is cut together with the leather and cushioning material to punch The object of the present invention is to provide a punching device for a vehicle seat fabric that allows the fabric cutting tip to be smoothly sucked and discharged through the inside without being disengaged.

In order to solve the above problems, the present invention includes: a drilling head 4 including a vertically moving lifting rod and a punch provided at the tip of the lifting rod; A receiving base 6 disposed on a lower portion of the perforated head 4 and including a receiving member for receiving a punch that descends according to the lower movement of the lifting rod; The punch and the base 6 are pulled and held in a direction in the direction of the plane that intersects the vertical direction of the hoist rod, and is maintained in a two-dimensional direction in the left-right direction orthogonal to the front-rear direction and the front-rear direction. Retaining frame 14; And a tape-shaped cushioning material between the workpiece held by the holding frame 14 and the upper surface of the receiving member, and which is at least wider than the processing area of the punch, from the front-rear direction. In the punching device of a car seat fabric comprising; a buffer material supply mechanism (8) to supply while leaving the position of the, the tape-shaped buffer material (H) supplied from the buffer material supply mechanism (8), upper and lower buffer tape Made of (H1, H2), the workpiece is a sheet fabric 100 to which a cushion material 120 is adhered to leather 110, and when punching the sheet fabric 100 from the punch, the sheet fabric The upper and lower buffer tapes (H1, H2) are supplied in a stacked state to the lower portion of the (100), and the upper buffer tape (H1) is cut along with the leather (110) and cushion material (120). It provides a punching device for automobile seat fabric.

Preferably, the buffer material supply mechanism (8) is installed on the front side and the rear side in order along the front-rear direction in the lower position of the perforated head (4), the upper and lower buffer tape (H1, H2) is Front and rear reels 54-1 and 54-2 respectively wound; The upper and lower buffer tapes H1 and H2 wound on the front and rear reels 54-1 and 54-2, respectively, are stacked between the sheet fabric 100 and the upper surface of the receiving member. It may include a; transfer unit 37 for supplying a state.

According to the punching device for the automobile seat fabric of the present invention having the above-mentioned solution, when punching a sheet fabric in which a cushion material such as a sponge is adhered to leather by laminating a tape-shaped cushioning material up and down, the upper part together with the leather and the cushion material By cutting the cushioning tape, the cushioning material having a low density of the fabric cutting tip and a soft material is relatively dense and the material is pressed in contact with the upper buffer tape made of a hard resin, and does not escape to the outside of the punch, but cuts through the inside. Since the whole can be sucked and discharged smoothly, even during the punching process of the seat fabric with the cushion material adhered to the leather, a part of the cushion material is prevented from occurring around the surface of the seat fabric or the occurrence of defects blocking the punching hole, thereby maintaining a high quality. There will be.

Figure 1 shows an example of punching a pattern of a predetermined shape on a conventional automobile seat fabric,
2 is a front view showing a sewing machine having a conventional drilling device,
3 is a side view showing the mounting state of the punch in FIG. 2,
Figure 4 is a side view of the receiving base and the cushioning material supply mechanism in Figure 2,
Figure 5 shows a cross-section of the seat fabric is a cushion material is bonded to the leather back,
Figure 6 shows the state of the punch punching the sheet fabric of Figure 5,
Figure 7 shows the surface state of the sheet fabric in the process of punching with the punch of Figure 6,
8 is a side view showing a receiving base and a cushioning material supply mechanism in a punching device for an automobile seat fabric according to an embodiment of the present invention,
9a to 9c is a cross-sectional view showing the process of punching the sheet fabric with a punch in the punching device of the automobile seat fabric according to an embodiment of the present invention,
Figure 10 shows the tip of the sheet fabric cut by the punching of Figure 9c,
Figure 11 shows the surface state of the sheet fabric in the punching process of Figure 10.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the present invention will be described in detail, which is intended to be described in detail so that those skilled in the art to which the present invention pertains can easily carry out. It does not mean that the technical spirit and scope of the invention are limited. And terms used to define relative positions such as before and after, left and right, up and down, and inside and outside are based on the attached drawings.

8 is a side view showing a receiving base and a cushioning material supply mechanism in a punching device for an automobile seat fabric according to an embodiment of the present invention.

The punching device for the automobile seat fabric according to the embodiment of the present invention is the same as the conventional punching device as shown in Figs. 2 to 4 and the embroidery sewing machine 1 having the punching device, but only as shown in Fig. 8 Similarly, since there is a difference in the cushioning material supply mechanism 8, the same part will be omitted or briefly described below, and the difference will be described in detail.

In the punching device for a car seat fabric according to an embodiment of the present invention, as shown in FIG. 8, as shown in FIG. 8, the workpiece held by the holding frame 14 and the upper surface of the receiving member are also in the front-rear direction From this, the tape-like cushioning material having a width wider than at least the processing area of the punch is stacked up and down, and is supplied while the position of each punch is moved up and down.

Here, the workpiece is a sheet fabric 100 to which the cushioning material 120 is adhered to the leather 110, and the tape-shaped cushioning material H is made of upper and lower cushioning tapes H1 and H2.

In addition, the buffer material supply mechanism 8 includes front and rear reels 54-1 and 54-2 and a transfer unit 37.

The front and rear reels 54-1 and 54-2 are sequentially installed on the front and rear sides along the front-rear direction in the lower position of the perforation head 4, and the upper and lower buffer tapes ( H1 and H2) are wound respectively.

Here, the lower cushioning tape (H2), as in the prior art, assists in ensuring the cutting of the sheet fabric 100 by its own elasticity, and the punch 17 and the punch stand 30 that collide with each other in the punching process ) To relieve damage and extend life.

In addition, the upper buffer tape (H1), while located on the lower buffer tape (H2), when punching the sheet fabric 100 in the punch 17, unlike the lower buffer tape (H2), the The leather 110 and the cushion material 120 are cut together.

To this end, the punching position of the punch 17 is adjusted so that only the upper buffer tape H1 among the upper and lower buffer tapes H1 and H2 in a stacked state is punched.

That is, among the upper and lower buffer tapes H1 and H2 to be laminated, the lower buffer tape H2 serves as a conventional buffer, and the upper buffer tape H1 is the sheet by the punch 17. While being cut together with the leather 110 and the cushioning material 120 of the fabric 100, the cushioning material 120 having a low density and a soft material is relatively dense and the material is pressed in contact with the upper buffer tape H1 made of resin. As it is in a state, the fabric cutting tip 100-1 can be smoothly sucked and discharged through the inside without leaving the punch 17 of the cushion material 120 to the outside.

The upper and lower buffer tapes (H1, H2) are made of a resin material such as PP, PE, PET in the form of a tape having a width of 5 to 15 mm and a thickness of O.2 to 0.7 mm. It is not limited and can be appropriately adjusted according to the size of the punch 17, and each size and thickness may be different.

The transfer part 37, the upper and lower buffer tape (H1, H2) wound on the front and rear side reels (54-1, 54-2), respectively, of the sheet fabric 100 and the receiving member It is supplied in a stacked state with the upper surface.

When explaining with reference to the accompanying drawings, the operation of the punching device for a car seat fabric according to an embodiment of the present invention having the above configuration will be described.

9a to 9c is a cross-sectional view showing the process of punching the sheet fabric with a punch in the punching device of the automobile sheet fabric according to an embodiment of the present invention, Figure 10 is a tip of the sheet fabric cut by the punching of Figure 9c , Figure 11 shows the surface state of the sheet fabric in the punching process of Figure 10.

In the punching device for a car seat fabric according to an embodiment of the present invention, the upper and lower buffer tapes H1 supplied from the front and rear reels 54-1 and 54-2, respectively, to the punch stand 30 , H2) is transferred from the transfer unit 37 to be stacked, and after placing the sheet fabric 100 to be punched thereon, the sheet fabric 100 is moved in a predetermined order to form a pattern having a desired shape. The part is punched in the punch 17.

Specifically, as shown in Figs. 9A to 9C, the punch 17 passes through the sheet fabric 100 and strikes the punch stand 30 to punch and cut the corresponding position of the sheet fabric 100. .

Then, the upper cushioning tape H1 is cut together with the leather 110 and cushioning material 120 of the sheet fabric 100, and as shown in FIG. 10, a fabric cutting tip 100-1 is generated, At this time, by adjusting the punching position of the punch 17, the lower buffer tape H2 is not punched as in the prior art, and serves only as a buffer.

The fabric cutting tip (100-1) generated in this process, while the cushion material 120 having a low density and a soft material is relatively dense and the material is pressed in contact with an upper buffer tape (H1) made of resin is hard. , Even if it is cut by the punching of the punch 17, the volume is not inflated instantaneously and does not deviate from the punch 17.

In addition, the fabric cutting tip 100-1 is sucked from the fabric cutting tip suction part (not shown in the drawing) through the punch 17 and reliably discharged and removed from the sheet fabric 100.

From this, as shown in FIG. 11, a part of the cushioning material 120 is punched during the punching process of the sheet fabric 100 in which the cushioning material 120 is adhered to the leather 110 by continuous punching of the punch 17. (17) As it is exposed to the outside, it does not cause defects that are scattered around the surface of the sheet fabric 100 or clogged in the punching hole, so that the quality of the product can be maintained at a high level and post-treatment work to prevent defects is added The workability is also improved.

This invention is not limited to the above embodiments, and various modifications are possible within the scope of the invention described in the claims, and such modifications are also included within the scope of the invention.

10: Conventional drilling device and embroidery sewing machine equipped with the drilling device
4: perforated head
6: Receiving foundation
8: cushioning material supply mechanism
14: retaining frame
17: punch
30: punch stand
37: transfer unit
50: reel support
54-1, 54-2: front and rear side reels
H1, H2: Upper and lower buffer tape
100: sheet fabric
100-1: Fabric cutting tip
110: leather
120: cushion material

Claims (2)

A perforating head 4 including a vertically moving hoisting rod and a punch provided at the tip of the hoisting rod;
A receiving base 6 disposed at a lower portion of the perforated head 4 and including a receiving member for receiving a punch that descends according to the lower movement of the lifting rod;
The workpiece is pulled and held in the direction of the surface between the punch and the receiving base 6 and crosses the vertical direction of the lifting rod, and is held open, and the movement is controlled in a two-dimensional direction in the left-right direction orthogonal to the front-rear direction and the front-rear direction. Retaining frame 14; And,
The position of the tape-like cushioning material between the workpiece held by the holding frame 14 and the upper surface of the receiving member and wider than the processing area of the punch, at least from the front-rear direction, is increased by the punching operation. In the punching device of the automobile seat fabric comprising; a buffer material supply mechanism (8) for supplying while leaving the,
The tape-shaped buffer material (H) supplied from the buffer material supply mechanism (8) is composed of upper and lower buffer tapes (H1, H2),
The workpiece is a sheet fabric 100 to which the cushion material 120 is adhered to the leather 110,
When punching the sheet fabric 100 from the punch, the upper and lower cushioning tapes H1 and H2 are supplied in a stacked state to the lower portion of the sheet fabric 100 while the leather 110 and the cushion material 120 ) Together with the upper cushioning tape (H1) to cut the punching device of the automobile seat fabric, characterized in that. According to claim 1,
The buffer material supply mechanism (8),
The front and rear reels 54-1, which are sequentially installed on the front side and the rear side along the front-rear direction at the lower position of the perforated head 4, are wound on the upper and lower buffer tapes H1 and H2, respectively. , 54-2);
The upper and lower buffer tapes H1 and H2 wound on the front and rear reels 54-1 and 54-2, respectively, are stacked between the sheet fabric 100 and the upper surface of the receiving member. A conveying unit 37 for supplying in a state; punching device for a car seat fabric comprising a.

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