JPH0811093A - Punching method and device thereof - Google Patents

Abstract

PURPOSE:To enable sharp hole punching by punching a hole in a workpiece as well as auxiliary sheet by a punching tool after clamping the workpiece through the auxiliary sheet by a pair of pressing members at a machining position. CONSTITUTION:A machining head 4 lowers down to a predetermined descent position, and pressing force is given to an upper plate 9 due to the downward energization of a spring 9a to clamp a workpiece 19 through auxiliary sheets 31, 39 by the upper plate 9 and a lower plate 8. Next, a hole is punched in the workpiece 19 while it is sandwiched between the upper and lower auxiliary sheets 31, 39 by the upper plate 9 and lower plate 8 due to the drive of a punch 6. Thus, a hole is punched in the workpiece 19 together with the auxiliary sheets 31, 39 while the thin workpiece 19 is sandwiched between thick auxiliary sheets 31, 39. As a result, hole punching is performed without pulling and tearing the workpiece 19.

Description

Detailed Description of the Invention

[0001]

The present invention has a thickness of, for example, 50.
Polyethylene terephthalate (PE
The present invention relates to a drilling method and a device for drilling a hole having a diameter of about 1 mm or less in an extremely thin film-like work such as a film.

[0002]

2. Description of the Related Art When punching such an extremely thin film or paper, it is common to place the film on a die and lower the punch to punch the punch and die. Has been done in. Further, as a device for plotting, cutting and / or punching a sheet material, there is a technique disclosed in JP-A-6-47698. This disclosed technique has two rollers arranged on the side of the bush facing the sheet material, and these rollers are slightly projected from the bush so as to roll on the sheet material in the process of cutting and / or punching. The cutting or punching tool is arranged between the rollers so that the working direction of the tool coincides with the rolling direction of the roller and is projected from the roller by a distance equal to the desired cutting or punching depth. And
By moving the bush in the direction of the sheet material, a cutting or punching tool is used to make a cut until the roller comes into contact with the sheet material, and the cutting depth is set to a desired value.

[0003]

However, when a hole having a diameter of about 1 mm or less is to be formed in an extremely thin film-like work such as a polyethylene terephthalate (PET) film having a thickness of 50 to 100 μm, With the above-mentioned processing equipment, the work is forcibly torn during processing or pulled by a punch, causing it to spread, which causes burrs on the hole edges, etc. There was a problem that I could not do it.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a drilling method capable of sharply drilling a work without causing burrs or the like. And to provide the device.

[0005]

In order to achieve the above-mentioned object, the punching method of the present invention sends a film-shaped work to a working position and sends auxiliary sheets to both sides of the work, The work is sandwiched by the pair of pressing members at the processing position via the auxiliary sheet, and then the work is punched together with the auxiliary sheet by the punching tool.

In order to achieve the above object, the punching device of the present invention is a punching tool for punching a film-like work located at a working position, a driving part thereof, and a punching tool. The lower pressing member and its drive unit that can move back and forth with respect to the work surface that holds the work surface from the side, and the upper pressing member and the drive unit that can move back and forth with respect to the work surface that holds the work surface from the punching tool side. Then, a punching device for punching the work with the punching tool while sandwiching the work by the pair of pressing members, a work feeding device for intermittently conveying the work toward the working position, and a work at the working position. On the other hand, between the pair of pressing members, an auxiliary sheet feeding device that intermittently conveys the auxiliary sheet is provided on both surface sides of the work, and the punching device is provided. And performing drilling on the auxiliary sheet in company work.

Further, it is preferable that the work feeding device has a work feeding part, a work winding part and a plurality of guide rollers. In addition, the auxiliary sheet feeding device, one auxiliary sheet feeding mechanism unit for intermittently conveying one auxiliary sheet, one advance and retreat drive unit for moving one auxiliary sheet feeding mechanism unit back and forth with respect to the work surface, and the other. It is preferable that the other auxiliary sheet feeding mechanism section that intermittently conveys the auxiliary sheet and the other forward and backward driving section that moves the other auxiliary sheet feeding mechanism section forward and backward with respect to the work surface. Further, it is preferable that each of the auxiliary sheet feeding mechanism sections includes an auxiliary sheet feeding section, an auxiliary sheet winding section, and a plurality of guide rollers.

[0008]

According to the drilling method of the present invention, the auxiliary sheet reinforces the work, and the work is torn or stretched by the tool, which causes the edge of the hole to grow. You can make sharp holes without burring.

Further, according to the punching device of the present invention, the punching device is operated to sandwich the work between the upper pressing member and the lower pressing member via the auxiliary sheet, and the punching tool and the lower part. With the pressing member, after performing the punching of the work together with the auxiliary sheet, when withdrawing from the lower pressing member and the work of the punching tool is completed, the upper pressing member and the lower pressing member are separated from the auxiliary sheet, The work is fed at a predetermined pitch in the work feeding device, the auxiliary sheet is fed in the auxiliary sheet feeding device, and thereafter, the punching is performed according to the operation sequence described above, and the film is sharply punched. It can be performed continuously in the shape of work.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a drilling device for carrying out the drilling method of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a configuration explanatory view of a punching device according to an embodiment of the present invention. The punching device according to the present invention comprises a punching device 1, a work feeding device 2, and an auxiliary sheet feeding device 3.

The punching device 1 has a punch 6 as a punching tool attached to a working head 4 which is moved up and down by a driving mechanism (not shown) at a working position A,
A lower plate 8 serving as a lower pressing member fixed to the lower lifting body 7 is provided, and an upper plate 9 serving as an upper pressing member is located between the punch 6 and the lower plate 8. The plate 9 is attached to the bracket 5 fixed to the processing head 4 so as to be able to move up and down via a spring 9a, and a pressing force is applied by downwardly urging the spring 9a. The lower lift 7 is moved up and down by the operation of the lift cylinder 10. A plurality of punches 6 may be provided in the work width direction.

The work feeding device 2 includes a work feeding section 11
The work take-up unit 12 and the guide rollers 13 and 14 are provided. The work take-up unit 11 is composed of a work take-up reel 15 and a motor 16 for rotating the work take-up reel 15 and the like. Reference numeral 12 includes a work take-up reel 17, a motor 18 for rotating the work take-up reel 17, and the like.

The work feeding section 11 and the work winding section 12 are arranged on both sides of the processing position A, and the work 19 fed from the work feeding reel 15 of the work feeding section 11 is transferred to the work winding reel 17. The guide roller 13 is wound, the guide roller 13 contacts the work 19 immediately after being unwound from the work unwinding reel 15, and the guide roller 14 contacts the work 19 immediately before being wound up by the work winding reel 17.
The work 19 is positioned at the processing height position. This work 19 is, for example, polyethylene terephthalate (PE
T) film, and the thickness thereof is about 50 to 100 μm.

The auxiliary sheet feeding device 3 includes an upper auxiliary sheet feeding mechanism portion 20 which is one of the auxiliary sheet feeding mechanism portions.
And an upper advancing / retreating drive section 41 which is one advancing / retreating drive section for moving the upper auxiliary sheet feeding mechanism section 20 in the direction of advancing / retreating with respect to the work surface, that is, the vertical direction, and the lower auxiliary sheet which is the other auxiliary sheet feeding mechanism section. A feed mechanism section 21,
The lower auxiliary sheet feeding mechanism 21 is composed of a lower advancing / retreating drive section 42 which is the other advancing / retreating drive section for moving the lower auxiliary sheet feeding mechanism section 21 in the advancing / retreating direction, that is, the vertical direction.

The upper auxiliary sheet feeding mechanism section 20 has an auxiliary sheet feeding section 23, an auxiliary sheet winding section 24, and guide rollers 25 and 26, which are attached to an upper moving body 22 and an upper advancing / retreating drive section 41. It is possible to move up and down all at once. The auxiliary sheet feeding portion 23 includes an auxiliary sheet feeding reel 27 and the auxiliary sheet feeding reel 27.
The auxiliary sheet take-up unit 24 includes an auxiliary sheet take-up reel 29, a motor 30 that rotationally drives the auxiliary sheet take-up reel 29, and the like.

Then, the auxiliary sheet 31 fed from the auxiliary sheet feeding reel 27 of the auxiliary sheet feeding section 23.
Is wound around the auxiliary sheet take-up reel 29 via the guide rollers 25 and 26, and the auxiliary sheet 31 between the guide rollers 25 and 26 is fed in parallel to the upper surface side of the work 19 at the processing position A. ing. The auxiliary sheet 31 is made of, for example, an auxiliary paper which is slightly thicker than the work (film) 19 and is not adsorbed to the work.

The upper advancing / retreating drive unit 41 is, for example, a cylinder 43, which is attached to a machine body (not shown), and its piston rod 44 is connected to the upper moving body 22.

The lower auxiliary sheet feeding mechanism section 21 has an auxiliary sheet feeding section 33, an auxiliary sheet winding section 34, and guide rollers 35 and 36, which are attached to the lower moving body 32 and a lower advancing / retracting drive section 42. It is possible to move up and down all at once. The auxiliary sheet feeding section 33 is composed of an auxiliary sheet feeding reel 37, a motor 38 for rotationally driving the auxiliary sheet feeding reel 37, and the like, and the auxiliary sheet winding section 34 has an auxiliary sheet winding reel 47 and this auxiliary sheet winding. The take-up reel 47 is composed of a motor 40 and the like for rotating the take-up reel 47.

Then, the auxiliary sheet 39 fed from the auxiliary sheet feeding reel 37 of the auxiliary sheet feeding portion 33.
Is wound around the auxiliary sheet take-up reel 47 via the guide rollers 35 and 36, and the auxiliary sheet 39 between the guide rollers 35 and 36 is fed to the lower surface side of the work 19 at the processing position A and in parallel. ing. The auxiliary sheet 39 also uses the same auxiliary sheet as the auxiliary sheet 31.

The lower advancing / retreating drive unit 42 is, for example, a cylinder 45. The cylinder 45 is attached to a machine body (not shown), and its piston rod 46 is connected to the lower moving body 32.

Next, the operation of the punching device constructed as described above will be described. In the state before the operation, the processing head 4 and the upper moving body 22 are in the raised positions,
The lifting body 7 and the lower moving body 32 are in the lowered position.
In this state, the work 19 and the auxiliary sheets 31 and 39 are fed, and the surface to be drilled is made to correspond to the processing position A, and the work 1
9. Stop the feeding of the auxiliary sheets 31 and 39. In this state, first, the lower moving body 32 is raised to a predetermined raised position and the auxiliary sheet 39 is positioned on the lower surface of the work 19. Further, the elevating body 7 is raised, and the lower plate 8 is attached to the auxiliary sheet
Is positioned on the lower surface of the work 19 from below. This state is shown in FIG.

Next, the upper moving body 22 is lowered to position the auxiliary sheet 31 on the work 19 upper surface. From this state, the punching device 1 is actuated, the processing head 4 thereof is lowered to a predetermined lowered position, the upper plate 9 is given a pressing force by the downward bias of the spring 9a, and the lower lifting body is moved. 7 is moved upward by the extension operation of the lifting cylinder 10, and the work 9 is sandwiched between the upper plate 9 and the lower plate 8 via the upper and lower auxiliary sheets 31 and 39 ((1) and (2 in FIG. 2). )reference).

Next, by driving the punch 6, the upper plate 9 and the lower plate 8 have upper and lower auxiliary sheets 31,
The work 19 is perforated while being sandwiched by 39.
In this way, the thin work 19 is sandwiched between the auxiliary sheets 31 and 39 that are thicker than the work 19, and the auxiliary sheets 31 and 39 are both perforated, whereby the work 19 is pulled, Drilling is performed without tearing (see (3) in FIG. 2).

Next, the processing head 4 of the punching device 1
Rises and the punch 6 is pulled out from the work 19.
The upper plate 9 holds the work 19 from above the auxiliary sheet 31 by the spring 9a until the drawing is completed. After the punch 6 has been pulled out, the machining head 4 is lifted and the upper plate 9 is also lifted via the spring 9a and separated from the work 19. At the same time when the processing head 4 is raised to the position before the operation, the lower lifting body 7 is lowered to the position before the operation and the lower plate 8 is returned to the lowered position before the operation, which is separated from the workpiece 19. After that, while the upper moving body 22 is raised to the raised position before the operation by the upper advancing / retreating drive unit 41,
The lower advancing / retreating drive unit 42 lowers the lower moving body 32 to the lowered position before the operation, and the upper and lower auxiliary seats 31, 3
9 is separated from the work 19 (see (4) in FIG. 2).

Next, in the work feeding device 2, the motors 16 and 18 rotate to rotate the work take-up reel 15 and the work feeding reel 17 so that the work 19 is conveyed in a predetermined pitch arrow direction.

The upper auxiliary sheet feeding mechanism section 20 is also provided.
, The motor 30 of the auxiliary sheet winding unit 24 and the motor 28 of the auxiliary sheet feeding unit 23 rotate, the auxiliary sheet take-up reel 29 and the auxiliary sheet feeding reel 27 rotate, and the auxiliary sheet 31 on the upper side has a predetermined pitch. Be transported.
This pitch does not have to be the same as the feed pitch of the workpiece 19, and the feed is set to a minimum so that the processing holes do not overlap.

The lower auxiliary sheet feeding mechanism portion 21 is also provided.
, The motor 40 of the auxiliary sheet winding unit 34 and the motor 38 of the auxiliary sheet feeding unit 33 rotate, the auxiliary sheet take-up reel 47 and the auxiliary sheet feeding reel 37 rotate, and the lower auxiliary sheet 39 has a predetermined pitch. Be transported.
This pitch is similar to the feeding of the auxiliary sheet 31.
After that, drilling is performed according to the operation sequence from the state of FIG. 1 described above. In the above-described embodiment, the work 19 and the auxiliary sheets 31 and 39 are fed in the horizontal direction, and the punching is performed from the vertical direction. You may make it the structure which makes a hole.

[0028]

As described above, according to the punching method of the present invention, the film-shaped work is fed to the working position, and the auxiliary sheets are fed to both sides of the work at the working position. After sandwiching the work through the auxiliary sheet by the pair of pressing members, the punching tool is used to perform punching processing on the work together with the auxiliary sheet, so that these auxiliary sheets come to reinforce the processed work, It is possible to perform sharp drilling without tearing this processed work, spreading and burrs.

Further, according to the punching device of the present invention, the punching device is operated to sandwich the work between the upper pressing member and the lower pressing member via the auxiliary sheet, and the auxiliary sheet is punched by the punching tool. When the punching of the work is performed and the pulling out of the punching tool from the lower holding member and the work is completed, the upper holding member and the lower holding member are separated from the auxiliary sheet. After that, the work is conveyed by a predetermined pitch by the work feeding device, and upper and lower auxiliary sheets are also conveyed by the auxiliary sheet feeding device, and the next processing operation is performed. As described above, while the work and the auxiliary sheet are fed for each processing, the sharp punching can be continuously performed with the work sandwiched between the auxiliary sheets, and the productivity can be improved.

Further, since the work feeding device for feeding the work at a predetermined pitch and the auxiliary sheet feeding device for feeding both auxiliary sheets are separately provided, the feeding of the auxiliary sheet is carried out separately from the feeding of the work. Therefore, when the pitch of the processed holes is large, the usage amount of the auxiliary sheet can be much smaller than that of the work.

[Brief description of drawings]

FIG. 1 is a structural explanatory view of a punching device according to an embodiment of the present invention.

FIG. 2A is an explanatory diagram of feeding of a work and an auxiliary sheet. (2) is an explanatory view of a state in which the work is sandwiched by the auxiliary sheets after the feeding of the work and the auxiliary sheets is stopped.
(3) is an explanatory view of a perforated work and an auxiliary sheet. (4) is an explanatory view of a state in which the auxiliary sheet is separated from the work and the work and the auxiliary sheet are intermittently fed after completion of punching.

[Explanation of symbols]

 1 Punching device 2 Work feeding device 3 Auxiliary sheet feeding device 6 Punch (punching tool) 8 Lower plate (lower pressing member) 9 Upper plate (upper pressing member) 19 Work 31, 39 Auxiliary sheet

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[Procedure amendment]

[Submission date] July 22, 1994

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

Title: Drilling method and device

[Claims]

3. A punching tool for punching a film-shaped work located at a working position and a driving part thereof, and a lower presser capable of advancing and retreating with respect to a work surface holding a work surface from a side opposite to the punching tool. A member and its drive part, and an upper pressing member that is movable back and forth with respect to the work surface holding the work surface from the punching tool side and its drive part, and the work is sandwiched by the pair of pressing members. A punching device that punches a work with a punching tool, a work feeding device that intermittently conveys the work toward the working position, and a pair of presser members on the both sides of the work for the work at the working position. Each of them is provided with an auxiliary sheet feeding device for intermittently conveying the auxiliary sheet, and the punching device is capable of punching the workpiece with the auxiliary sheet. Drilling apparatus according to symptoms.

Wherein said workpiece feeder drilling apparatus according to claim 3, wherein the workpiece feeding portion and the work take-up portion and having a plurality of guide rollers.

The method according to claim 5, wherein said auxiliary sheet feeding device, and one of the auxiliary sheet feed mechanism for intermittently conveying the one auxiliary sheet,
One advancing / retreating drive unit that moves one auxiliary sheet feeding mechanism unit back and forth with respect to the work surface, the other auxiliary sheet feeding mechanism unit that intermittently conveys the other auxiliary sheet, and the other auxiliary sheet feeding mechanism unit on the work surface. The punching device according to claim 3 or 4 , which is configured by the other advancing / retreating driving unit that moves the advancing / retreating with respect to the other.

Wherein said each of the auxiliary sheet feed mechanism section, the auxiliary sheet feeding unit and the auxiliary sheet winding unit and drilling device according to claim 5, further comprising a plurality of guide rollers.

Detailed Description of the Invention

[0001]

The present invention has a thickness of, for example, 50.
Polyethylene terephthalate (PE
The present invention relates to a drilling method and a device for drilling a hole having a diameter of about 1 mm or less in an extremely thin film-like work such as a film.

[0002]

2. Description of the Related Art When punching such an extremely thin film or paper, it is common to place the film on a die and lower the punch to punch the punch and die. Has been done in. Further, as a device for plotting, cutting and / or punching a sheet material, there is a technique disclosed in JP-A-6-47698. This disclosed technique has two rollers arranged on the side of the bush facing the sheet material, and these rollers are slightly projected from the bush so as to roll on the sheet material in the process of cutting and / or punching. The cutting or punching tool is arranged between the rollers so that the working direction of the tool coincides with the rolling direction of the roller and is projected from the roller by a distance equal to the desired cutting or punching depth. And
By moving the bush in the direction of the sheet material, a cutting or punching tool is used to make a cut until the roller comes into contact with the sheet material, and the cutting depth is set to a desired value.

[0003]

However, when a hole having a diameter of about 1 mm or less is to be formed in an extremely thin film-like work such as a polyethylene terephthalate (PET) film having a thickness of 50 to 100 μm, With the above-mentioned processing equipment, the work is forcibly torn during processing or pulled by a punch, causing it to spread, which causes burrs on the hole edges, etc. There was a problem that I could not do it.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a drilling method capable of sharply drilling a work without causing burrs or the like. And to provide the device.

[0005]

In order to achieve the above-mentioned object, the punching method of the present invention sends a film-shaped work to a working position and sends auxiliary sheets to both sides of the work, The work is sandwiched by the pair of pressing members at the processing position via the auxiliary sheet, and then the work is punched together with the auxiliary sheet by the punching tool. Further, the above
In the punching method, the auxiliary sheet should be paper.
Good.

In order to achieve the above object, the punching device of the present invention is a punching tool for punching a film-like work located at a working position, a driving part thereof, and a punching tool. The lower pressing member and its drive unit that can move back and forth with respect to the work surface that holds the work surface from the side, and the upper pressing member and the drive unit that can move back and forth with respect to the work surface that holds the work surface from the punching tool side. Then, a punching device for punching the work with the punching tool while sandwiching the work by the pair of pressing members, a work feeding device for intermittently conveying the work toward the working position, and a work at the working position. On the other hand, between the pair of pressing members, an auxiliary sheet feeding device that intermittently conveys the auxiliary sheet is provided on both surface sides of the work, and the punching device is provided. And performing drilling on the auxiliary sheet in company work.

Further, it is preferable that the work feeding device has a work feeding part, a work winding part and a plurality of guide rollers. In addition, the auxiliary sheet feeding device, one auxiliary sheet feeding mechanism unit for intermittently conveying one auxiliary sheet, one advance and retreat drive unit for moving one auxiliary sheet feeding mechanism unit back and forth with respect to the work surface, and the other. It is preferable that the other auxiliary sheet feeding mechanism section that intermittently conveys the auxiliary sheet and the other forward and backward driving section that moves the other auxiliary sheet feeding mechanism section forward and backward with respect to the work surface. Further, it is preferable that each of the auxiliary sheet feeding mechanism sections includes an auxiliary sheet feeding section, an auxiliary sheet winding section, and a plurality of guide rollers. Further, the above-described drilling device of the present invention
In the table, the auxiliary sheet is preferably paper.

[0008]

According to the drilling method of the present invention, the auxiliary sheet reinforces the work, and the work is torn or stretched by the tool, which causes the edge of the hole to grow. You can make sharp holes without burring.

Further, according to the punching device of the present invention, the punching device is operated to sandwich the work between the upper pressing member and the lower pressing member via the auxiliary sheet, and the punching tool and the lower part. With the pressing member, after performing the punching of the work together with the auxiliary sheet, when withdrawing from the lower pressing member and the work of the punching tool is completed, the upper pressing member and the lower pressing member are separated from the auxiliary sheet, The work is fed at a predetermined pitch in the work feeding device, the auxiliary sheet is fed in the auxiliary sheet feeding device, and thereafter, the punching is performed according to the operation sequence described above, and the film is sharply punched. It can be performed continuously in the shape of work.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a drilling device for carrying out the drilling method of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a configuration explanatory view of a punching device according to an embodiment of the present invention. Drilling apparatus according to the present invention, the punching apparatus 1, the workpiece feeding device 2, are constituted from auxiliary sheet feeder 3.

The punching device 1 has a punch 6 as a punching tool attached to a working head 4 which is moved up and down by a driving mechanism (not shown) at a working position A,
A lower plate 8 serving as a lower pressing member fixed to the lower lifting body 7 is provided, and an upper plate 9 serving as an upper pressing member is located between the punch 6 and the lower plate 8. The plate 9 is attached to the bracket 5 fixed to the processing head 4 so as to be able to move up and down via a spring 9a, and a pressing force is applied by downwardly urging the spring 9a. The lower lift 7 is moved up and down by the operation of the lift cylinder 10. A plurality of punches 6 may be provided in the work width direction.

The work feeding device 2 includes a work feeding section 11
The work take-up unit 12 and the guide rollers 13 and 14 are provided. The work take-up unit 11 is composed of a work take-up reel 15 and a motor 16 for rotating the work take-up reel 15 and the like. Reference numeral 12 includes a work take-up reel 17, a motor 18 for rotating the work take-up reel 17, and the like.

The work feeding section 11 and the work winding section 12 are arranged on both sides of the processing position A, and the work 19 fed from the work feeding reel 15 of the work feeding section 11 is transferred to the work winding reel 17. The guide roller 13 is wound, the guide roller 13 contacts the work 19 immediately after being unwound from the work unwinding reel 15, and the guide roller 14 contacts the work 19 immediately before being wound up by the work winding reel 17.
The work 19 is positioned at the processing height position. This work 19 is, for example, polyethylene terephthalate (PE
T) film, and the thickness thereof is about 50 to 100 μm.

The auxiliary sheet feeding device 3 includes an upper auxiliary sheet feeding mechanism portion 20 which is one of the auxiliary sheet feeding mechanism portions.
And an upper advancing / retreating drive section 41 which is one advancing / retreating drive section for moving the upper auxiliary sheet feeding mechanism section 20 in the direction of advancing / retreating with respect to the work surface, that is, the vertical direction, and the lower auxiliary sheet which is the other auxiliary sheet feeding mechanism section. A feed mechanism section 21,
The lower auxiliary sheet feeding mechanism 21 is composed of a lower advancing / retreating drive section 42 which is the other advancing / retreating drive section for moving the lower auxiliary sheet feeding mechanism section 21 in the advancing / retreating direction, that is, the vertical direction.

The upper auxiliary sheet feeding mechanism section 20 has an auxiliary sheet feeding section 23, an auxiliary sheet winding section 24, and guide rollers 25 and 26, which are attached to an upper moving body 22 and an upper advancing / retreating drive section 41. It is possible to move up and down all at once. The auxiliary sheet feeding portion 23 includes an auxiliary sheet feeding reel 27 and the auxiliary sheet feeding reel 27.
The auxiliary sheet take-up unit 24 includes an auxiliary sheet take-up reel 29, a motor 30 that rotationally drives the auxiliary sheet take-up reel 29, and the like.

Then, the auxiliary sheet 31 fed from the auxiliary sheet feeding reel 27 of the auxiliary sheet feeding section 23.
Is wound around the auxiliary sheet take-up reel 29 via the guide rollers 25 and 26, and the auxiliary sheet 31 between the guide rollers 25 and 26 is fed in parallel to the upper surface side of the work 19 at the processing position A. ing. The auxiliary sheet 31 is slightly thicker than the work (film) 19 and has no tenacity , and is attached to the punch 6 and the work 19.
Uses paper that does not have properties.

The upper advancing / retreating drive unit 41 is, for example, a cylinder 43, which is attached to a machine body (not shown), and its piston rod 44 is connected to the upper moving body 22.

The lower auxiliary sheet feeding mechanism section 21 has an auxiliary sheet feeding section 33, an auxiliary sheet winding section 34, and guide rollers 35 and 36, which are attached to the lower moving body 32 and a lower advancing / retracting drive section 42. It is possible to move up and down all at once. The auxiliary sheet feeding section 33 is composed of an auxiliary sheet feeding reel 37, a motor 38 for rotationally driving the auxiliary sheet feeding reel 37, and the like, and the auxiliary sheet winding section 34 has an auxiliary sheet winding reel 47 and this auxiliary sheet winding. The take-up reel 47 is composed of a motor 40 and the like for rotating the take-up reel 47.

Then, the auxiliary sheet 39 fed from the auxiliary sheet feeding reel 37 of the auxiliary sheet feeding portion 33.
Is wound around the auxiliary sheet take-up reel 47 via the guide rollers 35 and 36, and the auxiliary sheet 39 between the guide rollers 35 and 36 is fed to the lower surface side of the work 19 at the processing position A and in parallel. ing. The auxiliary sheet 39 also uses the same paper as the auxiliary sheet 31.

The lower advancing / retreating drive unit 42 is, for example, a cylinder 45. The cylinder 45 is attached to a machine body (not shown), and its piston rod 46 is connected to the lower moving body 32.

Next, the operation of the punching device constructed as described above will be described. In the state before the operation, the processing head 4 and the upper moving body 22 are in the raised positions,
The lifting body 7 and the lower moving body 32 are in the lowered position.
In this state, the work 19 and the auxiliary sheets 31 and 39 are fed (see (1) of FIG. 2) , the surface to be punched is made to correspond to the processing position A, and the feeding of the work 19 and the auxiliary sheets 31 and 39 is stopped. To do. In this state, first, the lower moving body 32 is raised to a predetermined raised position and the auxiliary sheet 39 is positioned on the lower surface of the work 19. Further, the elevating / lowering body 7 is lifted to position the lower plate 8 on the lower surface of the work 19 from below the auxiliary sheet 39. This state is shown in FIG.

Next, the upper moving body 22 is lowered to position the auxiliary sheet 31 on the work 19 upper surface. From this state, the punching device 1 is actuated, the processing head 4 of the punching device 1 is lowered to a predetermined lowered position, and the upper plate 9 is given a pressing force by downward force of the spring 9a.
Upper and lower auxiliary sheets 31 with the rate 9 and the lower plate 8,
The work 9 is sandwiched via 39 (see (2) in FIG. 2).
See).

Next, by driving the punch 6, the upper plate 9 and the lower plate 8 have upper and lower auxiliary sheets 31,
The work 19 is perforated while being sandwiched by 39.
In this way, the thin work 19 is sandwiched between the auxiliary sheets 31 and 39 that are thicker than the work 19, and the auxiliary sheets 31 and 39 are both perforated, whereby the work 19 is pulled, Drilling is done without tearing.

Next, the processing head 4 of the punching device 1
Rises and the punch 6 is pulled out from the work 19.
Until the drawing is completed, the upper plate 9 holds the work 19 from above the auxiliary sheet 31 by the spring 9a (see (3) in FIG. 2) . After the punch 6 has been pulled out, the machining head 4 is lifted and the upper plate 9 is also lifted via the spring 9a and separated from the work 19. At the same time when the processing head 4 is raised to the position before the operation, the lower lifting body 7 is lowered to the position before the operation and the lower plate 8 is returned to the lowered position before the operation, which is separated from the workpiece 19. Thereafter, the upper advancing / retreating drive unit 41 raises the upper moving body 22 to the raised position before actuation, and the lower advancing / retreating drive unit 42 lowers the lower moving body 32 to the descending position before actuation, so that the upper and lower auxiliary seats are moved. Separate 31 and 39 from the workpiece 19 (see FIG. 2).
(See (4)).

Next, in the work feeding device 2, the motors 16 and 18 rotate to rotate the work take-up reel 15 and the work feeding reel 17 so that the work 19 is conveyed in a predetermined pitch arrow direction.

The upper auxiliary sheet feeding mechanism section 20 is also provided.
, The motor 30 of the auxiliary sheet winding unit 24 and the motor 28 of the auxiliary sheet feeding unit 23 rotate, the auxiliary sheet take-up reel 29 and the auxiliary sheet feeding reel 27 rotate, and the auxiliary sheet 31 on the upper side has a predetermined pitch. Be transported.
This pitch does not have to be the same as the feed pitch of the workpiece 19, and the feed is set to a minimum so that the processing holes do not overlap.

The lower auxiliary sheet feeding mechanism portion 21 is also provided.
, The motor 40 of the auxiliary sheet winding unit 34 and the motor 38 of the auxiliary sheet feeding unit 33 rotate, the auxiliary sheet take-up reel 47 and the auxiliary sheet feeding reel 37 rotate, and the lower auxiliary sheet 39 has a predetermined pitch. Be transported.
This pitch is similar to the feeding of the auxiliary sheet 31.
After that, drilling is performed according to the operation sequence from the state of FIG. 1 described above.

In the above embodiment, the feed direction of the work 19 and the auxiliary sheets 31 and 39 is horizontal, and the punching is performed from the vertical direction. However, the whole is rotated by 90 ° so that the feed direction is vertical. The structure may be such that the holes are drilled from the horizontal direction.

[0029]

As described above, according to the punching method of the present invention, the film-shaped work is fed to the working position, and the auxiliary sheets are fed to both sides of the work at the working position. After sandwiching the work through the auxiliary sheet by the pair of pressing members, the punching tool is used to perform punching processing on the work together with the auxiliary sheet, so that these auxiliary sheets come to reinforce the processed work, It is possible to perform sharp drilling without tearing this processed work, spreading and burrs. Also, use paper for the auxiliary sheet
By doing so, there is no stickiness in nature and there is moderate strength,
Easy to separate from punching tools and workpieces
Good and smooth drilling.

Further , according to the punching device of the present invention, the punching device is operated, the upper pressing member and the lower pressing member sandwich the work through the auxiliary sheet, and the auxiliary sheet is punched by the punching tool. When the punching of the work is performed and the pulling out of the punching tool from the lower holding member and the work is completed, the upper holding member and the lower holding member are separated from the auxiliary sheet. After that, the work is conveyed by a predetermined pitch by the work feeding device, and upper and lower auxiliary sheets are also conveyed by the auxiliary sheet feeding device, and the next processing operation is performed. As described above, while the work and the auxiliary sheet are fed for each processing, the sharp punching can be continuously performed with the work sandwiched between the auxiliary sheets, and the productivity can be improved.

Further , since the work feeding device for feeding the work at a predetermined pitch and the auxiliary sheet feeding device for feeding both auxiliary sheets are separately provided, the feeding of the auxiliary sheet is carried out separately from the feeding of the work. Therefore, when the pitch of the processed holes is large, the usage amount of the auxiliary sheet can be much smaller than that of the work. Well
Even with the above-described punching device of the present invention, paper is used as an auxiliary sheet.
By using, it is not sticky in nature and has moderate strength.
It is easy to separate from punching tools and workpieces,
Good and smooth drilling to the hole.

[Brief description of drawings]

FIG. 1 is a structural explanatory view of a punching device according to an embodiment of the present invention.

FIG. 2A is an explanatory diagram of feeding of a work and an auxiliary sheet. (2) is an explanatory view of a state in which the work is sandwiched by the auxiliary sheets after the feeding of the work and the auxiliary sheets is stopped.
FIG. 3C is an explanatory diagram of the work and the auxiliary sheet punched in the state of FIG. (4) is an explanatory view of a state in which the auxiliary sheet is separated from the work and the work and the auxiliary sheet are intermittently fed after completion of punching.

[Explanation of symbols] 1 punching device 2 work feeding device 3 auxiliary sheet feeding device 6 punch (punching tool) 8 lower plate (lower pressing member) 9 upper plate (upper pressing member) 19 work 31, 39 auxiliary sheet

[Procedure amendment 4]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

FIG.

[Fig. 2]

Claims (5)

[Claims] 1. A film-shaped work is sent to a processing position, and auxiliary sheets are sent to both sides of the work, and the work is sandwiched by the pair of pressing members at the processing position, and then punched. A drilling method characterized in that the auxiliary sheet and the work are drilled with a tool. 2. A punching tool for punching a film-shaped work located at a working position and a driving part thereof, and a lower presser capable of advancing and retreating with respect to a work surface holding a work surface from the side opposite to the punching tool. A member and its drive part, and an upper pressing member that is movable back and forth with respect to the work surface holding the work surface from the punching tool side and its drive part, and the work is sandwiched by the pair of pressing members. A punching device that punches a work with a punching tool, a work feeding device that intermittently conveys the work toward the working position, and a pair of presser members on the both sides of the work for the work at the working position. Each of the auxiliary sheets is provided with an auxiliary sheet feeding device for intermittently conveying the auxiliary sheet, and the punching device performs a punching process on both the auxiliary sheet and the work. A drilling machine to collect. 3. The punching device according to claim 2, wherein the work feeding device has a work feeding portion, a work winding portion, and a plurality of guide rollers. 4. The one auxiliary sheet feeding mechanism portion for intermittently conveying one auxiliary sheet, the auxiliary sheet feeding device,
One advancing / retreating drive unit that moves one auxiliary sheet feeding mechanism unit back and forth with respect to the work surface, the other auxiliary sheet feeding mechanism unit that intermittently conveys the other auxiliary sheet, and the other auxiliary sheet feeding mechanism unit on the work surface. The punching device according to claim 2 or 3, which is configured by the other advancing / retreating drive unit that moves back and forth. 5. The punching device according to claim 4, wherein each of the auxiliary sheet feeding mechanism sections includes an auxiliary sheet feeding section, an auxiliary sheet winding section, and a plurality of guide rollers.