JP2002103289A - Trimming die and face plate mounting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting method capable of mounting a trimming die and a face plate simply and precisely. SOLUTION: A positioning pin 13 is inserted into a positioning hole 10 of the trimming die 5 attached to a chase 3, and a positioning disc 17 fitted in the positioning pin 13 with a perforated elastic body 15 and having a positioning hole 17a on its surface is temporarily fixed. An upper press board 1 is lowered to transfer the positioning disc 17 on a dead plate 4, a taper pin is inserted into the positioning hole 17a of the positioning disc 17 and attached to the dead plate 4, and then the positioning disc 17 is removed to position the face plate 8 due to fitting of the face plate 8 into the positioning hole 11 for the taper pin and fix it on the dead plate 4. After the fixation, a screw shaft is engaged with a screw hole formed in the taper pin by screwing it to remove the taper pin by tightening the screw shaft.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for attaching a die and a face plate to a punching machine in a state where the die and face plate are aligned.

[0002]

2. Description of the Related Art A die having a punching blade and a ruled line for scoring is relatively moved to a surface plate, and a sheet such as a base paper, a thin paper, or a plastic sheet disposed between the two dies is moved to a predetermined position. As a punching machine that punches in shape and simultaneously inserts ruled lines, a chase is attached to the lower surface of the upper press plate that is moved up and down, a die is attached to the chase, and the upper surface of the surface plate provided below the upper press plate A plate is mounted on the dead plate, a surface plate is mounted on the dead plate, and the sheet placed on the surface plate is punched into a predetermined shape with the die by the vertical movement of the upper press plate. Have been.

[0003] Here, the chase is designed to be mounted on the upper press plate with high precision, while the dead plate is also mounted on the fixed plate with high precision.

There are two types of punching machines, one having a flat surface of a surface plate and the other having a groove formed on a flat surface of the surface plate in opposition to a pressing rule attached to a punching die. The surface slab with the is formed is widely used for punching thin paper or plastic sheet.

[0005] Here, in the face plate in which the groove is formed,
If there is a deviation in the relative mounting position between the die and the die, it is not possible to form a clear ruled line on a thin corrugated cardboard sheet or thin paper.

[0006] Therefore, the surface slab having the groove is required to be mounted with high accuracy between the surface stencil and the die.

Japanese Unexamined Patent Publication (Kokai) No. 7-171795 proposes a method for mounting a die and a face plate in which the die and the face plate are aligned and mounted on a punching machine.

In the mounting method disclosed in the above publication, a positioning pin is inserted into a positioning hole formed in the die, a positioning disk is mounted on the head of the positioning pin, and the die is mounted on the lower surface of the upper slider. The positioning disk is transferred to the dead plate mounted on the upper surface of the surface plate through the adhesive provided on the surface of the positioning disk by lowering the upper slider and attached to the mounted chase. Are fitted in the positioning plate, and the face plate is attached to the dead plate.

The above mounting method has a feature that the die and the surface plate can be mounted with extremely high accuracy.

[0010]

By the way, according to the method of removing a die and attaching a face plate described in the above-mentioned publication, the positioning disk has a thickness substantially equal to that of the face plate and is relatively thin. It is very difficult to fit a plurality of positioning holes formed on the face plate at the same time with a plurality of positioning disks because it is a heavy one formed from a metal plate having a thickness of about 5 mm. However, there is a problem that the installation of the face plate is very troublesome.

In addition, since the positioning disk is mounted by bonding a double-sided tape, there is a problem in the stability of the mounting. When the surface plate comes into contact with the positioning disk, the positioning disk shifts and moves.
Or, there is a possibility that it will come off from the dead plate.

Here, when the positioning disk is shifted,
Since the positioning of the face plate becomes impossible, it is necessary to transfer the positioning disk again, which is very troublesome.

SUMMARY OF THE INVENTION An object of the present invention is to provide a mounting method capable of easily and surely performing an operation of aligning a die and a face plate.

[0014]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, there is provided a method of mounting a stamping die and a face plate on an upper press plate and a lower press plate which are relatively moved in a state where they are aligned. In the above, a plurality of positioning holes are formed in the die, a positioning hole corresponding to the positioning hole is provided in the face plate, a positioning pin is inserted into the positioning hole of the die, and a perforated elastic body is fitted into the positioning pin. The positioning die having the positioning holes into which the positioning pins are inserted is superimposed and temporarily fixed on the surface of the elastic body, and the die on which the positioning disk is mounted is removed from the upper and lower press plates. After the upper and lower press plates are relatively moved in the direction of pressing, the positioning disk is adhered to the other press plate with an adhesive provided on the surface, The positioning pin and the elastic body are removed, a taper pin for positioning is inserted into the positioning hole of the positioning disk, the taper pin is bonded to the other press plate with an adhesive, and then the positioning disk is removed. After fitting the positioning hole and attaching this face plate to the other press board, the screw shaft is screwed into the screw hole formed in the taper pin and penetrating in the axial direction, and tightened. A configuration is adopted in which the taper pin is removed by the action of pressing the other press plate.

With the above construction, when a taper pin is inserted into the positioning hole of the positioning disk transferred to the other press plate and the taper pin is bonded to the other press plate, an instant adhesive is used as an adhesive. Can be used, and the tapered pin can be attached to the other press board in a short time and very stably.

Further, when the tapered pin and the positioning hole of the face plate are fitted to each other, even if there is a gap between the tapered pin and the positioning hole, the positioning hole can be fitted to the tapered pin and the fitting can be performed. As a result, the face plate is guided and positioned by the tapered pin, so that the face plate can be easily mounted and can be accurately mounted.

Further, when the taper pin is removed, the screw shaft is screwed into a screw hole formed in the taper pin and tightened, so that the tip of the screw shaft presses the other press platen, and the pressing causes the other taper pin to be pressed into the other taper pin. Since the lifting force in the direction away from the surface plate is applied, the tapered pin can be removed very easily.

In the case where the punching machine is of a type in which a chase is attached to an upper press plate and a dead plate is attached to a lower press plate, a blanking die is attached to the chase and a face plate is attached to the dead plate. To

As a means for temporarily fixing the positioning disk to the elastic body, a magnet, for example, a rubber magnet is attached to one surface of the elastic body, while the positioning disk is formed of a magnetic metal plate such as an iron plate. By adopting the method of adsorbing the positioning disk, when the upper and lower press disks are relatively moved to transfer the positioning disk to the other press disk, the positioning disk can be reliably transferred to the other press disk. it can.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the punching machine has an upper press platen 1 that is moved up and down, and a fixed platen 2 as a lower press plate provided under the upper press platen 1. Is mounted with a chase 3, while a dead plate 4 is mounted on the upper surface of the surface plate 2.

Here, the chase 3 is a general-purpose jig which is accurately positioned and fixed to the upper press platen 1, while the dead plate 4 is also a general-purpose jig which can be accurately mounted on the surface plate 2.

A cutting die 5 is attached to the chase 3. The punching die 5 has plates 5a and 5b made of a metal plate such as a stainless steel plate on the front and back, and is provided with a punching blade 6 for punching a sheet into a predetermined shape and a pressing rule 7 for forming a score on the sheet.

On the other hand, a face plate 8 is attached to the dead plate 4. The face plate 8 is made of a metal plate such as a stainless steel plate, and has a surface provided with a groove 9 at a position facing the pressing rule 7 of the die 5.

In the punching machine, the upper press platen 1 is lowered, and the cutting edge at the tip of the punching blade 6 attached to the die 5 is brought into contact with the face plate 8, and the sheet placed on the face plate 8 Is punched into a predetermined shape by the punching blade 6 and a ruled line is formed by a pressing rule 7.

Here, since the sheet 7 is scored between the pressing rule 7 and the groove 9, when the punching die 5 and the face plate 8 are mounted, they are precisely mounted so that there is no displacement between the two dies 5, 8. There is a need.

The attachment will be described with reference to FIGS.

When the die 5 and the face plate 8 are mounted, a plurality of positioning holes 10 are formed in the die 5, and positioning holes 11 are provided in the face plate 8 so as to face the positioning holes 10. In forming the positioning hole 10 for the die 5, a sleeve 12 is attached to the die 5, and the inner diameter of the sleeve 12 is used as the positioning hole 10.

FIG. 2I shows a state in which the die 5 is positioned and fixed on the chase 3 and the positioning pins 13 are inserted into the respective positioning holes 10 of the die 5. Positioning pin 1
3 are formed with a plurality of annular grooves 13a.
The O-ring 14 is attached to the.

The positioning pin 13 is inserted into the positioning hole 10 with the end on the mounting side of the O-ring 14 first. The positioning pin 13 is held in the inserted state by the elastic contact of the O-ring 14 with the inner periphery of the positioning hole 10. ing.

After the positioning pins 13 are attached, a perforated elastic body 15 made of an elastic member such as rubber is fitted to the distal end of the sleeve 12 supporting the positioning pins 13. An elastic layer 15 such as a double-sided adhesive tape is provided on one side of the elastic body 15 in advance, and the elastic body 15 is attached to the surface of the die 5 by bonding the adhesive layer 16. The elastic body 15 has a magnet 18b made of a rubber magnet on its surface, and the magnet 18b attracts and supports the positioning disk 17 made of a magnetic metal plate shown in FIG. 2 (II).

Here, the elastic body 15 can be made of rubber, cork, or a mixture of rubber and cork.

The positioning disk 17 includes the positioning pins 13
Has a positioning hole 17a through which a pressure-sensitive adhesive layer 18 is inserted.
a is formed. The adhesive force of the pressure-sensitive adhesive layer 18a is larger than the attraction force of the magnet 18b. In addition,
Adhesive layers having different adhesive strengths may be formed on both surfaces of the positioning disk 17, and the positioning disk 17 may be attached to the surface of the elastic body 15 by bonding the adhesive layer having the weaker adhesive strength.

After the positioning disk 17 is attached, the chase 3 is turned over, and the chase 3 is brought into contact with the lower surface of the upper press platen 1 as shown in FIG. On the other hand, the dead plate 4 is placed on the upper surface of the surface plate 2 and positioned and fixed.

The dead plate 4 removes oil on the surface with alcohol or the like as necessary.

After the die 5 and the dead plate 4 are attached, the upper press platen 1 is lowered by a normal punching pressure. FIG. 3 (II) shows a state where the upper press platen 1 is lowered,
The positioning pin 13 is moved downward while the dead plate 4
The upper press platen 1 is slightly lowered, and the positioning pin 13 is pushed into the positioning hole 10 by the relative movement of the upper press platen 1 and the positioning pin 13. The positioning disk 17 is pressed against the dead plate 4 and is attached to the dead plate 4 by bonding the adhesive layer 18a.

After the upper press machine 1 descends, the upper press machine 1
Is raised, the positioning disk 17 is adhered to the dead plate 4 and remains on the dead plate 4 due to the difference between the adhesive force of the adhesive layer 18a provided on the positioning disk 17 and the attraction force of the magnet 18b. When 1 rises and stops, as shown in FIG. 3 (III), the elastic body 15 and the positioning pin 13 are removed.

After the positioning disk 17 is transferred to the dead plate 4 as shown in FIG.
As shown in (I), an instant adhesive 20 is applied to the large end surface of the tapered pin 19, and the tapered pin 19 is inserted into the positioning hole 17 a of the positioning disk 17 and bonded to the dead plate 4. Here, the tapered pin 19 is formed with a screw hole 19a penetrating from the small end surface to the large end surface.

FIG. 4 (II) shows the state of adhesion of the taper pin 19. After the taper pin 19 is attached, the positioning disk 17 is removed, and as shown in FIG. 4 (III), the positioning holes 11 formed in the face plate 8. Is fitted to the tapered pin 19, and the face plate 8 is superimposed on the dead plate 4.

As described above, since the positioning hole 11 of the face plate 8 is fitted to the tapered pin 19, the fitting is easy, and there is a relative displacement between the tapered pin 19 and the positioning hole 11. Even if the taper pin 1
The guide plate 9 corrects the positional deviation of the face plate 8, so that the face plate 8 can be accurately positioned on the dead plate 4.

FIG. 4 (IV) shows the positioning state of the face plate 8, after the positioning, the face plate 8 is fixed to the dead plate 4, and after the fixation, as shown in FIG. By removing, the mounting of the die 5 and the face plate 8 is completed.

Here, when removing the taper pin 19, a tool T shown in FIG. 4 (IV) is used. The tool T has a handle 32 provided on a screw shaft 30. When the screw shaft 30 of the tool T is screw-engaged with the screw hole 19a provided in the tapered pin 19 and the screw shaft 30 is tightened by rotating the handle 32, the tip of the screw shaft 30 presses the dead plate 4, A lifting force in a direction away from the dead plate 4 is applied to the tapered pin 19, and the tapered pin 1
9 can be removed very easily.

In place of the tool T as described above, a screw shaft such as a bolt may be screwed into the screw hole 19a and fastened.

When fixing the face plate 8, for example,
As shown in FIGS. 1 and 4 (V), a tapered hole 21 is formed in the face plate 8, a washer 22 having a tapered outer periphery is fitted into the tapered hole 21, and a length formed in the washer 22 is formed. A method of inserting a screw 24 into the hole 23 and screwing into a screw hole 25 provided in the face plate 8 can be adopted.

When an instant adhesive is used to attach the taper pin 19 as in the embodiment, the taper pin 19 can be attached very firmly, and the positioning hole 11 of the face plate 8 is fitted to the taper pin 19. At this time, even if the face plate 8 collides with the taper pin 19, the taper pin 19 does not move or come off, and it is possible to prevent the remounting work of the die 5 and the face plate 8 from occurring again.

In the embodiment, a die 5 is attached to a chase 3 which is positioned and fixed on the lower surface of the upper press platen 1,
The face plate 8 is attached to the dead plate 4 which is positioned and fixed on the upper surface of the
However, the mounting positions of the chase 3 and the dead plate 4 may be reversed, or the chase 3 and the dead plate 4 may be omitted, and the die 5 may be directly mounted on one of the upper press platen 1 and the base plate 2. Alternatively, the face plate 8 may be directly attached to the other.

[0046]

As described above, according to the present invention, the die and the face plate can be mounted with high precision without causing a relative position shift.

When the face plate is attached, the positioning holes formed in the face plate are fitted to the tapered pins, so that the fitting operation is easy, and at the time of fitting, between the positioning pins and the positioning holes. Even if there is a deviation, the face plate is guided and positioned by the tapered pin by the fitting, so that the face plate can be mounted very easily and with high accuracy.

Further, a screw shaft is screwed into a screw hole formed in the tapered pin, and a pulling force can be applied to the tapered pin by tightening the screw shaft.
The taper pin can be mounted very easily.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a state in which a die and a face plate according to the present invention are mounted.

FIGS. 2 (I) and (II) are cross-sectional views showing stepwise mounting of a positioning disk to a blanking die.

FIGS. 3 (I) to (III) are sectional views showing stepwise mounting of a positioning disk to a dead plate.

FIGS. 4 (I) to (V) are cross-sectional views showing stepwise attachment of a face plate to a dead plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper press platen 2 Surface plate 3 Chase 4 Dead plate 5 Die release 8 Face plate 10 Positioning hole 11 Positioning hole 13 Positioning pin 15 Elastic body 17 Positioning disk 17a Positioning hole 18a Adhesive layer 18b Magnet 19 Taper pin 19a Screw hole 20 Instant adhesive

Claims (3)

[Claims] 1. A method of mounting a die and a face plate in a state where a die and a face plate are aligned with each other on an upper press plate and a lower press plate which are relatively moved, wherein a plurality of positioning holes are formed in the die, and Provide positioning holes corresponding to the positioning holes,
Insert a positioning pin into the positioning hole of the die, temporarily fit the holed elastic body into the positioning pin and temporarily fix the die,
A positioning disk having a positioning hole into which the positioning pin is inserted is superimposed and temporarily fixed on the surface of the elastic body, and a die on which the positioning disk is mounted is mounted on one of the upper and lower press plates. After the positioning disk is moved relative to the pressing direction and the positioning disk is adhered to the other press plate with an adhesive provided on the surface thereof, the positioning pin and the elastic body are removed, and the positioning disk is positioned in the positioning hole of the positioning disk. After the taper pin is inserted and the taper pin is bonded to the other press plate with an adhesive, the positioning disk is removed, the positioning hole of the surface plate is fitted to the taper pin, and the surface plate is mounted on the other press plate. A screw shaft is screwed into a screw hole formed in the taper pin and penetrating in the axial direction, and tightened. Cutting die and the surface plate of the mounting method was to remove the taper pin by the action of the end presses the other press platen. 2. A chase is attached to a lower surface of the upper press machine, and a dead plate is attached to an upper surface of the lower press machine.
Attach a die with a positioning pin, an elastic body and a positioning disk mounted on the chase, transfer the positioning disk to the dead plate by the downward movement of the upper press plate, mount the taper pin, and mount the face plate through the taper pin. 2. The method for mounting a die and a face plate according to claim 1, wherein the die is mounted on a dead plate. 3. The die and die according to claim 1, wherein the means for temporarily fixing the positioning disk to the elastic body is configured to attract the positioning disk made of a metal plate by a magnet fixed to one surface of the elastic body. How to attach the face plate.