JPWO2013190643A1 - Punching device and method for manufacturing punching sheet member using the same - Google Patents

Abstract

In particular, when a thin sheet member is punched, punch holes are accurately formed in the sheet member, and peeling and removal of a punched piece after punching are facilitated. [Means] A punch hole is formed by abutting the front end of a punch member 13 whose base side is arranged in the punch assembly 12 and supported opposite the liner base 11 with the sheet member S supplied to the liner base. At this time, the elastic member 17 surrounding the periphery of the punch member is pressed against the sheet member, the supplied sheet member is fixed to the liner base, the punch assembly is further lowered, and the punch hole A is formed in the sheet member. At the same time, after the punched piece K punched from the sheet member is sucked and removed from the inside of the pipe of the punch member, the punch assembly is lifted to release the sheet member fixed to the liner base by the elastic member, and punch The sheet member in which the hole was formed was conveyed from the liner stage by the sheet member conveying unit 20. [Selection] Figure 1

Description

  The present invention relates to a punching device for continuously perforating a large number of holes in a sheet member such as cloth, synthetic resin, leather, paper, metal foil, and wood used as interior materials and clothing materials for automobiles and the like. More particularly, the present invention relates to a punching apparatus that punches a large number of holes in a thin sheet member, and a method of manufacturing a punching sheet member using the punching sheet member.

Conventionally, in perforation processing of sheet members such as cloth, paper, leather, resin,
A combination of a punch with a cylindrical punching blade (also called a punch) and a die is used.
For example, in Patent Document 1 (see Japanese Utility Model Laid-Open No. 5-70896), after a sheet member to be processed is disposed between a die and a punch, the punch is pushed down together with the piston toward the die. This describes that a punched piece having the same punch outline is cut out from the workpiece, a punch hole is drilled in the workpiece, and the punched piece is discharged to the outside through the cutout hole provided in the die. ing.

Patent Document 2 (see Japanese Patent Application Laid-Open No. 2008-55524) uses a punch as a tool as a drilling method for drilling a small hole in a plate-like workpiece. In this case, the ring-shaped blade formed at the tip of the punching punch is pressed against a sheet member such as paper or a metal plate, and the punch-shaped punch head is struck with a hammer or the like, so that the paper or synthetic resin is sheared. It describes that a sheet such as a plate or a metal plate is perforated.
Further, Patent Document 3 (Japanese Patent Application Laid-Open No. 8-243996) discloses a punching die in which a cutting edge of a cylindrical punching blade is protruded from the surface and penetrated from the back and fixed, and an elastic plate is attached to the surface,
There is described a punching device with a punching waste discharging device in which the punching die is supported from the back and provided with a punching waste discharge duct communicating with the punching blade end.

Japanese Utility Model Publication No. 5-70896 JP 2008-55524 A JP-A-8-243996

  However, in the method described in Patent Document 1, after punch holes are formed in the sheet surface, the punch moves backward together with the die. At this time, since the periphery of the hole shrinks to return to the original shape, a frictional force is generated between the sheet workpiece and the punch, and this frictional force acts as a resistance force that prevents the punch from moving backward. For this reason, there has been a problem that the punching punched from the workpiece has to be forcibly removed from the punch, and drilling cannot be performed quickly. Furthermore, if the workpiece is fixed to prevent the workpiece from being lifted, it is difficult to smoothly retract the punch, which may cause a failure such as a hydraulic puncher.

In the method described in Patent Document 2, the cutting edge of the punch is directly hit against the liner surface on which the sheet that is the workpiece is placed. For this reason, there is a problem that the cutting edge is easily deformed and worn and the sharpness is dulled, or the punched piece adheres firmly to the discharge pipe portion inside the punch.
Further, in the punching device with the punching waste discharging device described in Patent Document 3, a part of the punching waste is not easily sucked into the duct and easily accumulates on the apparatus base, and the sheet is transported via the sheet feeding device. There was a problem that wrinkles occurred due to uneven tension.

  An object of the present invention is to efficiently and quickly punch a sheet member by pressing the sheet member during punching to accurately form punch holes and facilitating peeling and removal of punched pieces after punching. An object of the present invention is to provide a punching device that can prevent deformation and wear at the tip of the punch member and is excellent in maintainability and economy. It is an object of the present invention to provide a punching apparatus and a method for manufacturing a punching sheet member that are excellent in punchability when punching a thin sheet member.

(1) The punching apparatus of this invention presses the pipe-shaped punch member which has a blade part at the front-end | tip to the sheet member supplied to the liner stand, and the punching piece punched from the said sheet member is carried out of the said punch member. A punching device for forming a punch hole in a sheet member while removing it from the inside of a pipe, wherein a plurality of the base side of the punch member are arranged in a punch assembly and supported to face the liner table, and the punch member The assembly includes an elastic member that surrounds the periphery of the punch member.
(2) In the punching apparatus of the present invention, in (1), the sheet member conveying section that conveys the sheet member in which the punch hole is formed from the liner table, and the conveyance length of the conveyed sheet member A length measuring unit for measuring and a control unit for controlling driving of the sheet member conveying unit are provided.
(3) The punching apparatus of the present invention is characterized in that, in the above (1) or (2), a liner sheet supply unit for supplying a liner sheet is provided between the sheet member and the liner base. .
(4) The punching device of the present invention is the punching device according to any one of (1) to (3), wherein the lubricating sheet supply unit supplies a lubricating sheet between the upper surface of the supplied sheet member or a plurality of stacked sheet members. It is provided.
(5) The punching apparatus of the present invention is the punching apparatus according to any one of (1) to (4), wherein the punching piece processing sheet supply unit supplies the punching piece processing sheet to the upper surface of the supplied liner sheet. It is provided.
(6) In the punching apparatus of the present invention, in any of the above (1) to (5), the cooling means for cooling the sheet member supplied between the punch assembly and the liner table is provided before the punching step. It is characterized by being attached to.
(7) The punching apparatus of the present invention is characterized in that, in any one of the above (1) to (6), the blade portion of the punch member is detachable from the base portion.
(8) In the method for manufacturing a punching sheet member of the present invention, a plurality of base side sides are arranged in a punch assembly and the tip of the punch member supported to face the liner table is applied to the sheet member supplied to the liner table. A punching method in which punch holes are formed in contact with each other, wherein an elastic member surrounding the periphery of the punch member is pressed against the sheet member, the supplied sheet member is fixed to a liner base, and the punch assembly is further The punch member is lowered to form a punch hole in the sheet member and a punched piece punched out from the sheet member is sucked and removed from the inside of the pipe of the punch member, and then the punch assembly is raised and a liner is formed by the elastic member. The sheet member fixed on the table is released, and the sheet member on which the punch hole is formed is conveyed from the liner table by the sheet member conveying unit. Characterized by being adapted to.

In the present invention, the punch member is supported by being arranged in a plurality of punch assemblies on the base side, and the punch assembly includes an elastic member surrounding the punch member. Therefore, the punch hole formation periphery of the sheet member is held in a pressed state with the liner base, and the punching process of the thin sheet member can be performed with high accuracy without the sheet member being distorted and the punching position of the thin sheet member being displaced.
In addition, when the blade portion at the tip of the punch member is raised from the surface of the liner base, the punch member in which the punch hole is inserted can be easily removed from the sheet member by restoring the thickness of the elastic member that is in a compressed state during the drilling process. And the punched piece thus cut off can be reliably pulled into the punch member.

It is the schematic of the punching apparatus of Example 1. FIG. It is a front view which shows the detail of a sheet member conveyance part. It is a block diagram which shows control of a sheet | seat member conveyance part. It is a schematic front view which shows the usage condition of the punch assembly 12, (a) shows the state before punching a sheet | seat member, (b) shows the state after punching. (A) is the schematic perspective view which showed the structure of the punch assembly 12, (b) is the expanded sectional view of the punch member periphery, (c) is the expanded sectional view explaining the other form of the punch member It is. It is the aspect which perforated the sheet | seat member using the control mechanism. It is a schematic explanatory drawing of the punching apparatus of Example 2. FIG. It is a schematic explanatory drawing of the punching apparatus of Example 3. It is a schematic explanatory drawing of the punching apparatus of Example 4. It is a schematic explanatory drawing of the punching apparatus of Example 5. FIG.

  A punching apparatus according to an embodiment of the present invention presses a blade portion of a punch member whose tip is formed in a pipe shape against a sheet member such as a fabric material or a synthetic resin material supplied to a liner table, thereby the sheet member A punching device that forms punch holes in the surface of a sheet member while sucking and removing punched pieces punched from the inside of the pipe of the punch member, and the punch member is supported by a plurality of punch bases arranged in a punch assembly. In addition, the punch assembly includes an elastic member surrounding the punch member.

Thus, when the sheet member is punched by the punch member, the periphery of the punch hole is held in a pressed state by the elastic member on the liner surface, so that the punching position is not shifted and the sheet member surface is not distorted. Drilling can be performed.
Also, when the blade part at the tip of the punch member is pulled up (raised) from the liner surface, the thickness of the elastic member is restored so that the blade part can be pulled out from the punch hole while pressing the punched sheet member. And

  Further, the punching device according to one embodiment of the present invention further includes a sheet member transport unit that pulls the sheet member between the pair of upper and lower rubber rolls and the rubber ring and supplies the sheet member between the punch member and the liner base. And a rotary encoder that measures the punch hole position of the sheet member to be transferred, and a control unit that controls the movement of the sheet member conveying unit based on the punch hole position data acquired by the rotary encoder. As a result, the punched sheet member can be held without causing wrinkles and can be appropriately punched, and the punched punched piece can be efficiently removed from the tip of the punch. A punching device excellent in efficiency and economy can be provided.

  The punching device is, for example, a punching device for forming a large number of punching holes for decoration or ventilation in an automotive interior material made of a resin sheet member or leather coated as an automotive interior material, It is set so that it can be detachably driven by moving the blade at the tip of the punch member up and down with respect to the surface of the sheet member.

The sheet member to be processed includes, for example, a cloth having a thickness of 0.1 to 5 mm, a non-woven fabric, a resin sheet member such as vinyl, a sheet member made of rubber or leather, and an elastic material such as these sheet member and sponge. Long sheet members and single sheet members (non-long sheets) such as laminated sheet members laminated with materials, adhesive sheet members coated with an adhesive and covered with cover paper, can be applied to the surface as needed. Also embossed ones.
In the present invention, a thin long sheet member is particularly preferable.

The punch member is a punching tool that has a blade-shaped tip at the tip of a pipe and punches the sheet member to be processed. The shape of the punch includes circles, triangles, crosses, etc. A cylindrical member, a triangular tube, a cross-shaped cylindrical member, and a hollow pipe quenching material.
The shape of the blade portion is the same as that of the punch hole, but the base side of the punch member (the side attached to the fixing plate of the punch assembly) is a cylinder having the same shape as the hole provided in the fixing plate. It is good also as a shape. For this reason, the blade portion can be attached to and detached from the base portion and can be exchanged in accordance with the punch hole.
A plurality of punch members are attached to the punch assembly by means such as screwing or fitting, with the gap being appropriately spaced on the punch assembly. In the punch assembly, the base side of each punch member is communicated with the intake box. In the intake box, the air pressure can be controlled via a suction pump or a blower fan.
Thus, the sheet member is punched, and the punched pieces accumulated in the punch member are sucked through the intake box.

Examples of the elastic member surrounding the punch member include elastic materials such as a natural (NR) or synthetic rubber material, a foamed polymer (sponge) made of polyurethane, an ethylene / vinyl acetate copolymer (EVA) material, or the like. Here, the term “go” does not mean that the elastic member is in close contact with the outer wall of the punch member. It means that there is an elastic member around the punch member. That is, the elastic member is attached to the lower part of the punch assembly and around the punch member.
In addition to the rubber material, the elastic member may be a metal material such as a string spring or a leaf spring.
Note that the thickness of the elastic member is desirably set to be 1 to 5 mm thicker than the position of the blade portion at the tip of the punch member. This is because if the elastic member is less than 1 mm from the blade tip position, the sheet member pressing effect during drilling is significantly reduced. Conversely, if the blade tip is set deeper than 5 mm, the pressurizing force required for drilling increases and the liner surface This is not preferable because the harmful effect caused by contact and impact between the blade and the blade portion is increased.
In order to prevent the elastic member from coming off from the periphery of the punch member during processing, a protrusion can be provided around the punch member to mechanically restrain the elastic member.

<Sheet member conveyance unit>
The sheet member conveyance unit is a conveyance device that supplies the sheet member to the punching device, and conveys the sheet member with a pair of upper and lower drive rolls and driven rolls while sandwiching the sheet member between the punch member and the liner base. A roll rotation mechanism for supplying the sheet member to the sheet. Here, examples of the drive roll include a rubber roll that is rotationally driven via a servo motor, and examples of the driven roll include a roll in which a plurality of rubber rings are arranged in parallel on the same axis with a space between each other.
The driven roll is disposed so as to be movable toward and away from the drive roll via an elevating mechanism such as an air cylinder, and presses the sheet member to be conveyed between the drive roll and the driven roll. Note that the driven roll may be driven by frictional force from the driving roll through the rubber ring, and a gear may be provided at the ends of the driving roll and the driven roll, and the driven roll may be rotated through the gear.

<Length measuring section>
The length measuring unit is a measuring instrument that measures the conveyance amount of the sheet member and the like, and includes one having a function of converting a mechanical displacement amount into a digital amount. The conveyance amount of the sheet member conveyed by the sheet member conveyance unit is measured and transmitted to the control unit. As the length measuring unit, a photoelectric encoder, a magnetic type, a contact type rotary encoder that captures electrical continuity, or the like is applicable.

<Control unit>
The control unit is a control device such as a computer or a sequencer, and is connected to a rotary encoder or a servo motor of the sheet member conveyance unit, and the sheet member conveyance based on the conveyance amount of the sheet member acquired by the rotary encoder. The drive roll of the part can be controlled. Thereby, the space | interval of the punch hole row | line | column of the conveyance direction formed in a sheet | seat member can be controlled to a predetermined value.

<Liner sheet supply unit>
Moreover, in this embodiment punching apparatus, the liner sheet supply part which supplies the liner sheet which protects the blade part of a punch member is provided between the said sheet member and the liner stand where the front-end | tip of the said punch member is pressed. be able to. Thereby, at the time of punching, it can avoid that the blade part of a punch member contact | abuts directly on a liner stand, and can contribute to the wear prevention of a blade part and protection of a liner stand.
As long as the liner sheet can protect the liner base and the punch member, the material and thickness thereof are not limited. For example, rubber, paper, synthetic resin, and the like are preferable.

In addition, instead of using the liner base provided facing the punch assembly as a fixed base,
It may be a belt conveyor type. In this case, the liner sheet can be wound around the belt conveyor.

<Lubricating sheet supply unit>
Moreover, in the punching apparatus of this embodiment, the lubricating sheet supply part which inserts and supplies a lubricating sheet between the upper surface of the said sheet member and a some laminated sheet member can be provided. Thereby, the punched piece accumulated in the inside of the punch member can be smoothly lubricated with the inner surface of the punch member and discharged smoothly, and the production efficiency and maintainability can be further improved.
As the lubricating sheet, a material or thickness is not limited as long as it gives a lubricating effect to the punched pieces accumulated in the punch member, but a sheet made of paper, resin or the like is preferable. Particularly preferred are films and sheets such as polyethylene, polyethylene terephthalate (PET), and paper containing a lubricating component. The thickness is preferably about 0.01 to 0.5 mm, for example.

<Example 1>
Hereinafter, embodiments of the punching device of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an overall schematic diagram of a punching apparatus according to a first embodiment. As shown in the drawing, the punching device 10A of Example 1 is relatively opposed to a liner base 11 to which a vehicle interior sheet member S to be processed is supplied and a smooth liner surface of the liner base 11. A punch assembly 12 that is moved up and down, and a punch member 13 that is arranged in a grid or linear form on the punch assembly 12 and punches the sheet member S on the liner table by press punching operation (punching), thereby forming punch holes. , And a sheet member supply unit 14 for supplying the sheet member S to the liner table 11.

  Further, as shown in the drawing, a sheet member conveying unit 20 for pulling out (conveying) the sheet member S from the liner table 11 is provided on the discharge side of the liner table 11.

  2 and 3 are block diagrams illustrating control of the sheet member conveyance unit. As shown in the figure, the sheet member transport unit 20 is moved up and down with respect to the drive roll 22 with the drive roll 22 made of a rubber roll driven by a servo motor 28 and the left and right ends supported by air cylinders 23 and 23 ′. The follower roll 21 is provided. A rubber ring 24 is intermittently arranged coaxially on the driven roll 21. Further, a rotary encoder (length measuring unit) 26 for obtaining the length of the conveyed sheet member S and the punch hole position is disposed between the sheet member conveying unit 20 and the liner base 11. .

  The control unit 27 is a computer that controls the operation of the punching apparatus 10A, and is connected to the servo motor 28, the rotary encoder 26, and the like via electric wiring. Thus, the sheet member S conveyed while being sandwiched between the rubber roll of the driving roll 22 and the rubber ring 24 of the driven roll 21 is supplied between the punch member 13 and the liner base 11 at a predetermined timing. That is, the length and punch hole position of the conveyed sheet member S are measured by the rotary encoder 26 to control the operation timing of the lowering and raising of the punch assembly 12.

  The longitudinal interval of the punch holes A formed in the sheet member S for every vertical movement of the punch assembly 12 is precisely determined by the feed speed of the sheet member S, that is, the servo motor 28 that rotates the drive roll 22. can do. Thus, the operation of the servo motor 28 can be controlled via the control unit 27 to control the width of the space SP formed between the longitudinal rows of the punch holes A of the sheet member S (see FIG. 6). .

  The sheet member S is conveyed by rotating the roll by fitting the rubber ring 24 to the driven roll 21 and pulling the sheet member S with the driving roll 22 while pressing the sheet member S through the rubber ring 24. Variations in the force that pulls the member S can be suppressed, and wrinkles that occur in the sheet member S when the sheet member S is fed can be effectively prevented.

4A and 4B are schematic front views showing how the punch assembly 12 is used. FIG. 4A shows a state before punching the sheet member S, and FIG. 4B shows a state after punching. As shown in FIG. 4, the punch assembly 12 moved up and down by a press drive mechanism (not shown) allows the upper base side of the punch member 13 to hang down to the lower part of the ventilation box 18 and the punch member 13 side. The periphery is surrounded by an elastic member 17 made of a rubber material. Thus, when the sheet member S is punched by the punch member 13, the elastic member 17 presses and holds the periphery of the portion to be punched between the liner surface and the liner member. Distortion can be prevented and punch holes can be formed accurately.
Further, when the punch member 13 is detached from the liner surface, the thickness of the elastic member 17 is restored so that the punch member 13 is pulled out from the punch hole A while the sheet member after punching is pressed against the liner surface. The piece K can be reliably left inside the punch member 13.

  In this embodiment, the thickness of the elastic member 17 is set to be higher than the position of the blade portion at the tip of the punch member 13 (that is, the thickness X of the elastic member 17> the length Y of the punch member 13). In addition, while maintaining the sheet member pressing effect at the time of punching, it is possible to prevent adverse effects caused by contact and impact between the liner surface and the blade portion without increasing the pressurizing force required for punching.

FIG. 5A is a schematic perspective view showing the structure of the punch assembly 12, FIG. 5B is an enlarged cross-sectional view around the punch member, and FIG. 5C illustrates another form of the punch member. It is an expanded sectional view.
As shown in FIGS. 5A and 5B, the inside of the punch member 13 has a cylindrical pipe shape (cavity) and is supported downwardly by the punch assembly 12, and its base side is into the ventilation box 18. It is in a connected state (having air permeability). By flowing compressed air through the ventilation box 18 at a high speed, the inside of the punch member 13 can be sucked and the punched piece K accumulated in the punch member 13 by the punching process of the sheet member S can be removed.
Further, by maintaining the inside of the ventilation box 18 at a positive pressure or negative pressure state by a vacuum pump or a fan mechanism (not shown), the inside of the punch member 13 is sucked into the air, or conversely from the blade side if necessary. It is also possible to blow out air.

In addition, although the liner base 11 which contact | abuts the blade part of the punch member 13 at the time of a piercing process uses the iron raw material which has a smooth surface (liner surface), it is woody, a synthetic resin quality, rubber quality, etc. as needed. It is also possible to use a relatively soft coating material laminated on the liner surface.
Further, as shown in FIG. 5B, in the punch assembly 12, after the punch member 13 is inserted and fitted into the hole of the lower fixing plate 13c from above, the upward pulling is prevented. Therefore, it is pressed from above by a back plate 13b provided with a hole smaller than the outer diameter of the punch member 13.
In addition, the blade part 13a at the tip of the punch member can be formed separately from the base part of the punch member 13. That is, as shown in FIG.5 (c), according to the shape which pierces the blade part 13a of the front-end | tip of the punch member 13, such as a circle | round | yen, a triangle, a cross, It is a cross-shaped cylinder, and the base side of the punch member is a cylinder. Thereby, the effect that the elastic member 17 does not fall off from the punch member 13 is also produced.

A method for manufacturing a punching sheet member for punching a sheet member using the punching apparatus 10A configured as described above will be described. First, the sheet member S is conveyed to the liner table 11 by the sheet member supply unit 14 and stops at a predetermined position in the center of the liner table.
At this time, compressed air flows in the ventilation box 18 above the punch member 13, and the inside of the punch member 13 becomes negative pressure, and the punched piece K is sucked into the ventilation box 18.

  Next, the punch assembly 12 is lowered toward the liner base 11. Accordingly, the elastic member 17 below the punch assembly 12 brings the sheet member S into contact with the liner base 11 and strongly fixes the sheet member S to the liner base by the compression of the elastic member 17. Then, the punch assembly 12 is further lowered to form the punch hole A and the punched piece K in the sheet member S by the blade portion 13 a at the tip of the punch member 13. The punched piece K formed by punching is taken into the internal pipe-shaped cavity of the punch member 13 and discharged into the ventilation box 18 by negative pressure. When the punch assembly 12 is raised, the blade member 13a of the punch member 13 can be extracted from the formed punch hole A while the elastic member 17 is pressing the sheet member S. Punch holes A can be formed.

In this way, when the punch assembly 12 reaches a predetermined upper position, the servo motor 28 drives the sheet member conveying section 20 that conveys the sheet member S in the horizontal direction in synchronization therewith.
The sheet member S from which the punch piece K has been removed moves after a predetermined distance and then stops, and the next punching operation is executed. By continuously performing such a series of operations, a large number of punch holes A can be arranged in the sheet member S at predetermined intervals.
Further, by controlling the conveyance amount by the servo motor 28, the row interval of the punch holes A can be changed in the sheet member feeding direction (longitudinal direction), and a space SP can be held between the punch hole rows (FIG. 6 ( a) (b) (c)).

<Example 2>
FIG. 7 is a schematic explanatory diagram of a punching apparatus 10B according to the second embodiment of the present invention.
As shown in the figure, the punching device of Example 1 is configured by attaching a liner sheet supply unit 16 and a punched piece suction unit 41. The liner sheet supply unit 16 supplies the liner sheet R in synchronism with the supply operation of the sheet member S via the control unit 27, and the liner sheet R causes the liner 13 to strike the blade portion 13a of the punch member 13 during punching. The base 11 is protected. As shown in the drawing, after the punching of the sheet member S, the liner sheet R is peeled off from the sheet member S to be a product and discharged.

  The punched piece suction portion 41 sucks the punched piece K remaining on the sheet member without being sucked and removed into the pipe-shaped inside of the punch member 13 after the punch hole A is punched, and is completely punched from the sheet member S. An apparatus for removing the piece K. Instead of the punched piece suction portion 41 (or by adding it), an injection device that blows away the punched piece K remaining on the sheet member may be provided.

<Example 3>
FIG. 8 is a schematic explanatory diagram of a punching apparatus 10C according to the third embodiment of the present invention.
As shown in the drawing, the punching apparatus 10C of the third embodiment is configured by attaching a lubricating sheet supply unit 15 in addition to the punching apparatus of the second embodiment. The lubricating sheet supply unit 15 is a supply mechanism for supplying the lubricating sheet J laminated on the surface of the sheet member S in synchronization with the supply operation of the sheet member S, and is driven and controlled via the control unit 27. It has become.

  The roller portion of the lubricating sheet supply unit 15 can be braked to rewind the lubricating sheet. The lubricating sheet J fed from the roller is prevented from being bent by the tensile force generated by such a brake.

<Example 4>
FIG. 9 is a schematic explanatory diagram of a punching apparatus 10D according to the fourth embodiment of the present invention.
As shown in the drawing, the punching device 10D of Example 4 is a punched piece for inserting a punched piece processing sheet N between the sheet member S and the liner sheet R in the punching device of Example 3. A processing sheet supply unit 31 is provided, and an air nozzle 32 for blowing off punched pieces still attached to the punched sheet member, and a dust collector 33 for collecting soot made of the blown punched pieces K. And a sheet member watermark inspection machine 34 for performing a fluoroscopic inspection of the sheet member after air cleaning, and a product take-up roller 35 for winding up the sheet member after the cleaning inspection.

<Punched sheet processing sheet>
The punch piece processing sheet N sucks the punch piece K after punch holes are punched into the punch member so that it passes smoothly. Acts like a lid to keep. That is, when there is a gap between the punched piece K and the inner surface of the punch member side wall, the punched piece K is difficult to be sucked. In such a case, the punching piece processing sheet N that is difficult to be deformed is located on the inner surface of the punch member side wall by causing the thick punching piece processing sheet N to exist below the punching piece K, so that the punch member side wall By acting like a lid, the punched piece processing sheet N is sucked to help suck the punched piece K.

  According to the punching processing of the sheet member to which the punching device 10D is applied, the punched piece processing sheet N is used or the cleaning process by the air nozzle 32 is added. Removal can be performed reliably, and the reliability of the product can be further enhanced.

<Example 5>
FIG. 10 is a schematic explanatory diagram of a punching apparatus 10E according to the fifth embodiment of the present invention.
As shown in the figure, the punching device 10E of Example 5 is the same as the punching device of Example 1, except that a cooling means 42 is added to the previous process of the punch assembly 12. By cooling the sheet member S to which the adhesive has been applied by the cooling means 42, the adhesive force of the adhesive is suppressed, so that the adhesive does not adhere to the blade portion or the cavity of the punch member in the punching process. be able to. Examples of the cooling means 42 include air cooling, a water cooling device, or means such as cooling with liquid nitrogen.

  The punching apparatus of the present invention can accurately form a punch hole by pressing a sheet member during punching, facilitate separation from the punch hole after punching, and can perform drilling efficiently and quickly. It is excellent in maintainability and economy by preventing deformation and wear of the punch tip. In particular, when punching a thin sheet member, since it has excellent piercing properties, the industrial applicability is extremely high.

10A, 10B, 10C, 10D, 10E Punching device 11 Liner base 12 Punch assembly 13 Punch member 13a Blade portion 13b Back plate 13c Fixed plate 14 Sheet member supply unit 15 Lubricating sheet supply unit 16 Liner sheet supply unit 17 Elastic member 18 Ventilation Box 20 Sheet member conveying section 21 Follower roll 22 Drive roll 23, 23 'Air cylinder 24 Rubber ring 26 Length measuring section (rotary encoder)
27 Control unit 28 Servo motor 31 Punch piece processing sheet supply unit 32 Air nozzle 33 Dust collector 34 Sheet member watermark inspection machine 35 Product take-up roller 41 Punch piece suction unit 42 Cooling means S Sheet member SP Space J Lubrication sheet R Liner sheet N Punched piece processing sheet K Punched piece A Punch hole X Elastic member thickness Y Punch member length

(1) The punching apparatus of the present invention is
Pressing a pipe-shaped punch member having a blade at the tip to the sheet member supplied to the liner table,
A punching device that forms punch holes in a sheet member while sucking and removing a punched piece punched from the sheet member from the inside of the pipe of the punch member,
The punch member is arranged in a plurality of punch assemblies on the base side and is supported to face the liner table,
The punch assembly includes an elastic member that surrounds the periphery of the punch member;
A liner sheet supply unit for supplying a liner sheet between the sheet member and the liner base is provided,
Punching piece processing for supplying a punching piece processing sheet on the upper surface of the supplied liner sheet to keep the airtightness with the inner surface of the punch member side wall and suck the punching piece into the punch member so that it passes smoothly. A sheet supply unit is provided .
(2) The punching device of the present invention is the above (1),
A sheet member conveying section that conveys the sheet member in which the punch hole is formed from the liner stand; and
A length measuring unit for measuring the transport length of the transported sheet member;
A control unit for controlling driving of the sheet member conveying unit;
It is provided with.
(3) The punching device of the present invention is the above (1) or (2) ,
Between the upper surface of the sheet member to be supplied or between the sheet members that are stacked in a plurality,
A lubricating sheet supply unit for supplying a lubricating sheet is provided.
(4) In any one of the above (1) to (3) , the punching device of the present invention is
A cooling means for cooling the sheet member supplied between the punch assembly and the liner table is provided before the punching step.
(5) The punching device of the present invention is any one of the above (1) to (4) ,
The blade portion of the punch member is detachable from its base portion.
(6) The manufacturing method of the punching sheet member of the present invention includes:
A punching method of its base side to form the punch holes is brought into contact with the sheet member fed to tips of the plurality arrayed with punch member supported to be opposed to the liner board to the liner board to the punch assembly,
The elastic member surrounding the punch member is pressed against the sheet member,
Fix the supplied sheet member to the liner stand,
Lower the punch assembly further,
After forming a punch hole in the sheet member and sucking and removing the punched piece punched from the sheet member from the inside of the pipe of the punch member,
Raise the punch assembly,
Release the sheet member fixed to the liner base by the elastic member,
The sheet member in which the punch hole is formed is conveyed from the liner table by a sheet member conveying unit ,
A liner sheet is supplied between the sheet member and the liner table from a liner sheet supply unit,
A punching piece processing sheet is provided on the upper surface of the supplied liner sheet to keep the airtightness with the inner surface of the punch member side wall and suck the punching piece into the punch member so that it passes smoothly. It supplies from a supply part, It is characterized by the above-mentioned.

<Punched sheet processing sheet>
The punching piece processing sheet N has an airtightness with the inner surface of the punch member side wall in order to suck the punching piece K, which is a punching residue after punching the punch hole, into the punch member and pass it smoothly. Acts like a lid to keep. That is, when there is a gap between the punched piece K and the inner surface of the punch member side wall, the punched piece K is difficult to be sucked. In such a case, the punching piece processing sheet N that is difficult to be deformed is located on the inner surface of the punch member side wall by causing the thick punching piece processing sheet N to exist below the punching piece K, so that the punch member side wall By acting like a lid, the punched piece processing sheet N is sucked to help suck the punched piece K.

Claims (8)

Pressing a pipe-shaped punch member having a blade at the tip to the sheet member supplied to the liner table,
A punching device that forms punch holes in a sheet member while sucking and removing a punched piece punched from the sheet member from the inside of the pipe of the punch member,
The punch member is arranged in a plurality of punch assemblies on the base side and is supported to face the liner table,
The punching apparatus according to claim 1, wherein the punch assembly includes an elastic member surrounding the punch member. In the punching device,
A sheet member conveying section that conveys the sheet member in which the punch hole is formed from the liner stand; and
A length measuring unit for measuring the transport length of the transported sheet member;
A control unit for controlling driving of the sheet member conveying unit;
The punching apparatus according to claim 1, further comprising: The punching apparatus according to claim 1, wherein a liner sheet supply unit for supplying a liner sheet is provided between the sheet member and the liner base. Between the upper surface of the sheet member to be supplied or between the sheet members that are stacked in a plurality,
The punching apparatus according to any one of claims 1 to 3, further comprising a lubricating sheet supply unit that supplies the lubricating sheet. On the upper surface of the liner sheet to be supplied,
The punching apparatus according to any one of claims 1 to 4, further comprising a punched piece processing sheet supply unit for supplying a punched piece processing sheet. The punching apparatus according to any one of claims 1 to 5, wherein a cooling means for cooling the sheet member supplied between the punch assembly and the liner table is attached before the punching step. The punching device according to any one of claims 1 to 6, wherein a blade portion of the punch member is detachable from a base portion thereof. A punching method in which a punch hole is formed by abutting the tip of a punch member, the base side of which is arranged in a plurality of punch assemblies and supported to face the liner table, with a sheet member supplied to the liner table,
The elastic member surrounding the punch member is pressed against the sheet member,
Fix the supplied sheet member to the liner stand,
Lower the punch assembly further,
After forming a punch hole in the sheet member and sucking and removing the punched piece punched from the sheet member from the inside of the pipe of the punch member,
Raise the punch assembly,
Release the sheet member fixed to the liner base by the elastic member,
A method for producing a punching sheet member, wherein the sheet member in which the punch hole is formed is conveyed from the liner table by a sheet member conveying unit.

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