JP2001105396A - Continuous punching method for sheet material and continuous punching apparatus for sheet material realizing the method - Google Patents

Abstract

(57) [Summary] [PROBLEMS] When a conventional apparatus is applied to a film having a small thickness, the amount of change in the pressure distribution is large, and the proportion of defective products due to tension at the moment of cutting is high. In addition, since the process is a batch-type process, it is not suitable for continuous work, and there is a problem in work efficiency. A moving table reciprocating on a base (2)
The sheet material (W) is pulled out from the material roll (L) on the upper surface of the sheet material, and the interposed plate (7) is placed on the sheet material. The sheet material sandwiched between the moving table and the intervening plate is passed under the lowered pressing roller (61). After passing through the pressing roller, the pressing roller is raised to move only the intervening plate to the start point position, and the cut sheet material is taken out from the blade (3) of the moving table at the end point side, and the moving table is placed on the base. And returns the sheet material to the moving table at the start point position. Further, the blade-shaped contact position of the interposed plate may be moved every one reciprocal movement of the moving table.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of an apparatus for punching a sheet material such as a thin film material, a thin foil material, a film material, a fabric material, a thin paper material, and the like. Further, the present invention relates to a continuous punching apparatus for a sheet material that is continuously punched using a blade having a desired shape.

[0002]

2. Description of the Related Art Heretofore, when punching such a sheet material into a predetermined shape, a method of using a blade die or the like and punching by a power press has been generally used.

For example, as disclosed in Japanese Patent Application Laid-Open No. 7-214500 and Japanese Utility Model Registration No. 30131151, a sheet material to be cut is placed on a moving table having a blade having a desired shape arranged on an upper surface thereof. There is known an apparatus for punching by pinching and moving between pressing rollers arranged vertically opposed to each other.

[0004] In addition, Japanese Unexamined Patent Application Publication No. 5-26970
As disclosed in No. 0, there is known a device in which a sheet material to be cut is placed on a fixed table on which a blade having a desired shape is arranged, and a pressing roller is moved from the upper surface to perform punching. I have.

[0005]

However, the conventional apparatus requires a step of cutting the sheet material to be cut from the raw roll in accordance with the size of the table on which the blade mold is formed. However, there is a problem in that it is necessary to secure a space for stocking the sheet material after cutting out the sheet material.

Further, since the above-mentioned conventional apparatus is intended for a relatively thick sheet material such as a corrugated cardboard, punching is performed by sandwiching the sheet with a pressing roller opposed to each other. When this is applied to a film in the shape of a circle, since the amount of change in the pressure distribution is large, there is also a problem that the rate of occurrence of defective products due to tension or the like at the moment of cutting increases.
In particular, in the cutting and punching of polarizing films, etc., since the delicate tensile force at the time of cutting greatly affects the product performance,
Great care must be taken.

Further, the above-mentioned conventional apparatus is of a so-called batch type (batch type), and is not suitable for continuous operation, and has a problem in its operation efficiency. Although the possibility of line-forming in connection with other steps is suggested, the specific configuration has not been disclosed.

[0008]

Therefore, the present invention has been made in view of the above problems, and supplies a sheet material to be cut directly from a raw material roll, and performs a punching process with the continuous band-shaped sheet material as it is. It is also an object of the present invention to provide a continuous punching method for a sheet material having a low rejection rate and a high working efficiency even in a thin film material, and a continuous punching device for a sheet material realizing the method.

[0009]

In order to achieve the above object, the present invention is configured as follows. In the present specification, reference numerals may be used for description, but the present invention is not limited thereto.

The method for continuously punching a sheet material according to the present invention is performed in the following order. That is, a first step of pulling out and placing the sheet material (W) held by the raw roll (L) on the upper surface of the moving table (2) reciprocating between the start point and the end point on the base (1); Second step of placing the interposition plate (7) so as to cover the entire surface of the sheet material (W) placed on the movable table (2), the movable table (2)
A third step in which the sheet material (W) sandwiched between the sheet and the intervening plate (7) passes under the lower part of the lowered pressing roller (61).
4th step of raising 1) and moving only the intervening plate (7) to the starting point position, moving table (2) on the end point side
The fifth step of taking out the cut sheet material (W) from the blade die (3) and moving the same, returning the moving table (2) to the starting point on the base (1) and removing the sheet material (W). A sixth step of returning to the moving table (2) at the start point.

[0011] Further, the fourth step is performed by pressing a pressing roller (6
After passing through 1), the sheet material (W) that has not been cut and separated is gripped, and the moving table (2) is moved by a predetermined minute amount toward the end point. The movement of the interposed plate (7) alone to the starting point may be performed.

Further, after the sixth step, a seventh step of moving the contact position of the blade (3) of the interposed plate (7) with each reciprocating movement of the moving table (2) may be added. .

Next, an apparatus for realizing such a continuous punching method for a sheet material is provided with a cutting die (3) having a cutting edge (30) having a desired shape on the upper surface, and a starting point and an ending point on the base (1). A moving table (2) that slides back and forth substantially horizontally between
A supply mechanism (4) disposed on the starting point side of the moving table (2) for supplying the sheet material (W) to the upper surface of the moving table (2); and a supply mechanism (4) disposed on the ending point side of the moving table (2); The transfer mechanism (5) for taking out the cut sheet material (W) from the moving table (2) reaching the end point, and the cutting mechanism (3) on the moving table (2) are arranged so as to cover the entire surface of the cutting die (3). The intervening plate (7) that slides and moves independently on the outward path together with the moving table (2) and the moving table (2).
A pressing mechanism (6) that is arranged near the middle of the reciprocating stroke of the moving table (2) and presses the moving table (2) via the intervening plate (7);
Consists of

A mechanism for minutely moving the position of contact of the blade tip with the interposition plate (7) may be added for each reciprocating movement of the moving table (2). It is characterized in that a holding means (9) for the placed sheet material (W) is arranged.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a continuous punching apparatus for a sheet material according to the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a perspective view showing the overall configuration of the present embodiment, and FIG. 2 is a cross-sectional view showing a cut portion of the present embodiment, wherein (A) is before cutting, (B) is during cutting, or It shows the state after cutting. FIG. 3 is a perspective view showing a mechanism for moving the interposed plate. 4 to 9 are side views showing respective states of the operation process of the present embodiment.

The present embodiment comprises a base 1 that stably holds substantially the entirety thereof, a movable table 2 installed reciprocally slidable on the base 1, a blade die 3 installed and fixed to the movable table 2, A feeding mechanism 4 for the sheet material W provided at one end of the base 1, a transfer mechanism 5 for taking out cut products provided at the other end of the base 1, and near the middle of the reciprocating stroke of the moving table 2. , An intervening plate 7 placed on and cooperating with the moving table 2, and a moving mechanism 8 for minutely moving the intervening plate 7.

The base 1 is formed in a rectangular frame shape with a square pipe material having appropriate strength, and is stably installed on the installation surface. Two parallel guide rails 10 extending in the longitudinal direction are laid on the upper portion of the base 1, and a rectangular flat plate-shaped moving table 2 is slidably mounted on the guide rails 10. The moving table 2 has a starting point S on one side of the base 1.
It is configured to reciprocate with the other side as the end point F. The moving mechanism itself can be constructed using existing technologies such as, for example, rack and pinion mechanism, wheel movement, servo motor drive, linear motor drive, cylinder drive, or belt drive. Omitted.

On the upper surface of the moving table 2, a blade die 3 having a strip-shaped blade surface facing upward and divided into a predetermined continuous shape (in the embodiment, generally called a Thomson type) is fixed. An elastic material 3 such as sponge, rubber plate, urethane, or the like is provided in the partitioned space of the blade mold 3 until the blade tip 30 is slightly hidden.
One is laid.

This configuration prevents damage when the sheet material W is supplied to the upper surface of the blade mold 3 and damage when an intervening plate 7 described later comes into contact with the upper surface. Further, in the suction operation by the transfer mechanism 5 described later, the chip material (the punched film material) is reliably sucked without falling between the blades.

The supply mechanism 4 comprises a raw material holding section 40 and a pinch roll 41 arranged near an end of the base 1 on the starting point S side. The material W is rotatably held in a state of a raw roll L.

The pinch rolls 41 are rotatably held by two support portions 42 which are arranged near the ends of the base 1 in an upright manner and opposed to each other. Further, the pinch roll 41 has a driving means (not shown), and supplies the sheet material W fed from the material roll L to the upper surface of the cutting die 3 of the moving table 2.

The transfer mechanism 5 approaches the chipped sheet material W (hereinafter abbreviated as “chip material”) on the blade mold 3 after punching from above and communicates with a ring blower (not shown) or the like. The adsorbing plate 50 suction-adheres and performs a transfer operation (moving and mounting) on the storage table 51.
The transfer mechanism 5 is of a ceiling traveling type in consideration of effective use of space, and is preferably configured to include a suction disk, a horizontal moving unit, and a vertical moving unit. For example, a ceiling-mounted vertical multi-indirect robot with a traveling axis,
Alternatively, a highly versatile robot such as a ceiling-mounted horizontal multi-indirect robot having a traveling axis and a vertical axis may be used.

In the present embodiment, the storage table 51 is in the form of a table serving as a temporary table for the chip material for the next process. It should be noted that this may be replaced with a transport device such as a belt conveyor in consideration of future line production.

The pressing mechanism 6 is disposed near the middle of the stroke between the starting point S and the ending point F of the moving table, and the support column 60 is erected on both sides of the base 1 across the moving path.
The pressure roller 61 is placed horizontally so as to bridge the support column 60. The pressing roller 61 is configured to be appropriately moved up and down by driving means (not shown) such as a cylinder mechanism and a motor, using a guide rail 62 laid vertically on the opposing surface of the support column 60 as a guide. And it rotates in synchronization with the moving speed of the moving table 2.

The intervening plate 7 has dimensions slightly larger in width and length than the blade mold 3, and is formed in a rectangular plate shape from an appropriate material such as hard synthetic resin, wood, soft metal, or the like. The intervening plate 7 has a holding member 70 on both sides in the longitudinal direction.
The holding member 70 is engaged with a horizontal moving means 72 provided on two vertical moving means 71 supported by the base 1. By the driving of the horizontal moving means 72, the reciprocating horizontal movement is performed with a linear guide 73 described later as a guide. In this embodiment, the vertical moving means 71 is an air cylinder mechanism, and the horizontal moving means 72 is configured using an air slider mechanism.

Next, the holding member 70 of the interposed plate 7 is composed of a plate fixing portion 80 and a slide moving portion 81. Here, the plate fixing portion 80 is screwed into a fine screw 83 which is driven to rotate by a stepping motor 82 provided on the slide moving portion 81, and the linear guide 73 laid on the air slider mechanism 72 by the operation of the stepping motor 82. It is configured to be guided and move with respect to the moving table 2.

With this configuration, the intervening plate 7 is placed on and abutted on the upper surface of the sheet material W placed on the blade mold 3, moves together with the moving table 2, and also steps at the starting point after one reciprocation. The moving table 2 is operated by the operation of the motor 82.
, The contact position of the blade 30 of the blade die 3 of the interposed plate 7 can be appropriately shifted, and the durability of the interposed plate 7 and the accuracy of punching the sheet material can be improved. We are improving.

On the end point side near the pressing mechanism 6, a gripping means 9 for the sheet material W is arranged. The holding means 9 includes a base
Arrange up and down support columns 90 at both sides facing each other,
A reclining member 91 is provided on the upper end of the support column 90, and a suction pad 92 is suspended from the reclining member 91. The upper limit of the moving range of the suction pad 92 is higher than the upper limit of the vertical moving range of the interposition plate 7, and the lower limit is set to a position slightly lower than the upper surface position of the blade 3.

[0030]

Operation of the present embodiment The continuous punching apparatus for sheet material of the present embodiment configured as described above operates as follows.

First, the raw roll L to the pinch roll 41
The sheet material W is fed out, and is positioned and placed on the upper surface of the blade mold 3 on the moving table 2 at the starting point S. This state is referred to as an initial state.

Next, the intervening plate 7 held at the upper position is moved downward to be placed so as to cover the entire surface of the sheet material W on the blade mold 3 and integrated with the moving table 2 (FIG. 4). The integrated sheet material W, blade die 3, and intervening plate 7 are moved in the direction of the end point F, and are passed through the lower part of the lowered pressing roller 61 (FIG. 5). In this movement process, as shown in FIG. 2, the pressing force of the pressing roller 61 pushes down the sheet material W via the intervening plate 7, whereby the elastic material 31 of the blade mold 3 is compressed and the cutting edge 30 is exposed,
The cutting edge 30 punches the sheet material W into a standard shape.

The sheet material W, the cutting die 3, and the intervening plate 7 which have completed the punching are temporarily stopped near the end point F (FIG. 6). After waiting for this stop, the pressing roller 61 moves up and retreats, and the interposed plate 7 is raised by the action of the air cylinder mechanism 71.
The operation returns to the start point S position by the operation of the air slider mechanism 72. Here, the stepping motor 82 of the moving mechanism 8 is activated by one notch, and the interposition plate 7 is minutely moved (arrow a) (FIG. 7).

Next, the gripping means 9 is activated, and the lying member 91 is turned on.
At the same time, the end of the uncut sheet material W is sucked and held by the suction pad 92 lowered, and the moving table 2 is slightly moved in the direction of the end point F (arrow b). Thereby, the sheet material W on the material roll L is completely trimmed (FIG. 8).

Subsequently, the transfer mechanism 5 is operated to suck and hold the chip material on the moving table 2 with the suction disk 50, and transports the chip material to the storage table 51 to sequentially stack and store. When the chip material is taken out, the moving table 2 returns to the starting point S on the guide rail 10 (FIG. 9).

Finally, the holding of the end of the sheet material W by the gripping means 9 is released. It is pulled back to the position where the edge shape is substantially matched, returns to the initial state, and the intervening plate 7 descends.

By repeating the above operation steps, the work of punching the sheet material W is continuously and repeatedly performed.

[0038]

[Effects] Since the present invention has the above configuration,
By supplying sheet material for cutting directly from the raw roll,
In addition, a high-precision punching step can be performed. Therefore, it is possible to omit the sheet material cutting step and the space for storing the sheet material after the sheet material is cut out, and it is possible to provide a continuous sheet material punching apparatus having a high work efficiency and a low defect rate.

Also, when a line is formed in connection with other plural processes, the use of the sheet material continuous punching apparatus of the present invention facilitates construction of a line facility with a small space.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the overall configuration of the present embodiment.

FIG. 2 is a cross-sectional view showing a cutting portion of the embodiment.

FIG. 3 is a perspective view showing a moving mechanism of the interposition plate of the embodiment.

FIG. 4 is a side view showing a state of an operation step of the embodiment.

FIG. 5 is a side view showing a state of an operation step of the embodiment.

FIG. 6 is a side view showing a state of an operation step of the embodiment.

FIG. 7 is a side view showing a state of an operation step of the embodiment.

FIG. 8 is a side view showing a state of an operation step of the embodiment.

FIG. 9 is a side view showing a state of an operation step of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 10 Guide rail 2 Moving table 3 Blade type 30 Blade tip 31 Elastic material 4 Supply mechanism 40 Holding part 41 Pinch roll 42 Support part 5 Transfer mechanism 50 Suction board 51 Storage table 6 Press mechanism 60 Support column 61 Press roller 62 Guide Rail 7 Interposed plate 70 Holding member 71 Vertical moving means (air cylinder mechanism) 72 Horizontal moving means (air slider mechanism) 73 Linear guide 8 Moving mechanism (from interposed plate) 80 Plate fixing part 81 Slide moving part 82 Stepping motor 83 Fine Screw 9 Gripping means 90 Prop 91 Recline member 92 Suction pad W Sheet material L Raw material roll S Start point F End point

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Naoya Nogi 1-1 Oecho, Niihama-shi, Ehime Prefecture Sumitomo Chemical Co., Ltd. Ehime Plant Co., Ltd. (72) Inventor Takayuki Yamaguchi 5-1 Sokaicho, Niihama-shi, Ehime Prefecture Sumitomo Chemical Industry Co., Ltd. Production Technology Center (72) Inventor Koichi Sato Fukushima Pref., Sugakawa City, Kasahara Industry Co., Ltd. Sugagawa Plant Co., Ltd. (72) Inventor Yoshinori Yoshida 3307-5 Shimimachi, Niigata City, Niigata Pref. In-house F term (reference) 3C060 AA01 AA03 AB01 BA03 BG01 BG15 BH01

Claims (6)

[Claims] 1. A method for continuously punching a sheet material comprising the following steps: A first step in which a sheet material (W) held by a raw roll (L) is pulled out and placed on an upper surface of a moving table (2) reciprocating between a start point and an end point on a base (1); A second step of placing the interposition plate (7) so as to cover the entire surface of the sheet material (W) placed on (2); the sheet material (W) sandwiched between the moving table (2) and the interposition plate (7); ) Is passed under the lower portion of the pressing roller (61), and after passing through the pressing roller (61), the pressing roller (6)
A fourth step of raising 1) and moving only the intervening plate (7) to the starting point position, taking out the cut sheet material (W) from the blade mold (3) of the moving table (2) at the end point side A fifth step of moving the moving table (2) to the starting point on the base (1), and a sixth step of returning the sheet material (W) to the moving table (2) at the starting point; In the fourth step, after passing through the pressing roller (61), the sheet material (W) that has not been cut and separated is gripped and the moving table (2) is moved by a predetermined minute amount toward the end point. 2. The continuous punching method according to claim 1, wherein, after the movement, the pressing roller (61) is lifted and the intermediate plate (7) is independently moved toward the starting point. 3. The method according to claim 1, further comprising the step of: after the sixth step, a seventh step of moving a blade die (3) contact position of the interposition plate (7) for each reciprocating movement of the moving table (2). 3. The method according to claim 1, wherein the sheet material is continuously punched. 4. A moving table (2) having a cutting die (3) of a desired shape having a cutting edge (30) on the upper surface, and reciprocatingly sliding substantially horizontally between a starting point and an end point on a base (1). A supply mechanism (4) disposed on the starting point side of the moving table (2) for supplying the sheet material (W) to the upper surface of the moving table (2); and a supply mechanism (4) disposed on the end point side of the moving table (2). A transfer mechanism (5) for taking out the cut sheet material from the moving table (2) which has reached the end point; and a disposing mechanism (5) arranged so as to cover the entire surface of the blade die (3) on the moving table (2). Is with the moving table (2)
The return path includes an intervening plate (7) that slides and moves independently, and a pressing mechanism that is disposed near the middle of the reciprocating stroke of the moving table (2) and presses the moving table (2) via the intervening plate (7). (6) An apparatus for continuously punching sheet materials, comprising: 5. For each reciprocating movement of the moving table (2),
5. The continuous punching device for sheet material according to claim 4, wherein the position of contact of the cutting edge (30) with the intervening plate (7) is slightly moved. 6. The sheet material continuous punching device according to claim 4, wherein a sheet material (W) gripping means (9) arranged at the end point side of the pressing mechanism (6) is arranged. .