JP3533106B2 - How to attach the die and female type - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a die and a die attaching method for attaching a die and a female die to a punching machine while aligning them.

[0002]

2. Description of the Related Art A punching blade and a punching die having a scoring rule attached thereto are moved relative to each other, and a base paper or thin paper, or a sheet such as a plastic sheet, which is arranged between the two die, is set to a predetermined size. As a punching machine that punches into a shape and inserts ruled lines at the same time, a chase is attached to the lower surface of the upper press board that is moved up and down, and a die is attached to the chase, and the upper surface of a surface plate provided below the upper press board It is known that a dead plate is attached to the dead plate, a female die is attached to the dead plate, and the sheet placed on the female die is punched into a predetermined shape with the die by vertically moving the upper press platen. Has been.

Here, the chase is accurately attached to the upper press platen, while the dead plate is also accurately attached to the fixed platen.

In the punching machine, there are a female die having a flat surface and a female die having a groove formed on the flat surface of the female die so as to face a ruled line attached to the die. The female mold with the formed is widely used for punching thin paper and plastic sheets.

Here, in the female mold having the groove,
If there is a deviation in the relative mounting position between the die and the die, it is not possible to draw a sharp ruled line on a thin corrugated cardboard sheet or thin paper.

Therefore, the female die having the groove is required to be mounted with high precision between the female die and the pair of the die.

Japanese Unexamined Patent Publication (Kokai) No. 7-171795 proposes a method of attaching a die and a female die in which a die and a female die are aligned and attached to a punching machine.

In the mounting method disclosed in the above publication, the positioning pin is inserted into the positioning hole formed in the die, the positioning disk is mounted on the head of the positioning pin, and then the die is placed on the lower surface of the upper slider. It is attached to the attached chase, and the positioning disc is transferred to the dead plate attached to the upper surface of the surface plate via the adhesive provided on the surface of the positioning disc by the lowering of the upper slider, and the female disc is attached to this positioning disc. A female die is attached to the dead plate by fitting a positioning hole provided in the.

The above-mentioned mounting method is characterized in that the die and the female die can be mounted with extremely high precision.

[0010]

In the method of attaching the die and the female die described in the above publication, the positioning disc has a thickness substantially equal to that of the female die and is relatively thin, while the female die has 1. Since it is made of a metal plate having a thickness of about 5 mm and is heavy, it is extremely difficult to fit the plurality of positioning holes formed in the female mold to the plurality of positioning disks at the same time. There is a problem that it takes a lot of time to install the female type.

Since the positioning disc is mounted by adhering the double-sided tape, there is a problem in the stability of the mounting, and when the heavy female positioning hole is fitted to face the positioning disc, When the female die contacts the positioning disc, the positioning disc shifts,
Alternatively, it may come off from the dead plate.

Here, when the positioning disk is displaced,
Since the female die cannot be positioned, it is necessary to transfer the positioning disc again, which is very troublesome.

An object of the present invention is to provide a mounting method capable of easily and surely performing the work of aligning the die and the female die.

[0014]

In order to solve the above-mentioned problems, according to the present invention, a method of mounting a die and a female die in alignment with each other on an upper press platen and a lower press platen which are relatively moved. In, a plurality of positioning holes are formed in the die, a positioning hole corresponding to the positioning hole is provided in the female die, a positioning pin is inserted into the positioning hole of the die, and a perforated elastic body is fitted into the positioning pin. Then, the elastic body is temporarily fixed to the die, and a positioning disc having a positioning hole into which the positioning pin is inserted is superposed on the surface of the elastic body to temporarily secure the die. attached to one of the upper and lower press platen are relatively moved in the direction of pressure, then adhered to the other press platen by an adhesive disposed the positioning disk on its surface, The serial positioning pins and the elastic member
Removing the insert a tapered pin for positioning the positioning holes of the positioning disk, the taper pins by adhesive removed indexing disc then adhered to the other press platen fitted positioning holes of the female to the taper pins, this After the female die is attached to the other press board, the taper pin is removed.

According to the above construction, when the taper pin is inserted into the positioning hole of the positioning disk transferred to the other press platen and the taper pin is adhered to the other press platen, an instant adhesive is used as an adhesive. Can be used, and the taper pin can be attached to the other press machine in a short time and very stably.

Further, during the fitting of the taper pin and the female positioning hole, even if there is misalignment therebetween taper pins and the positioning holes, it is possible to fit the positioning hole on the tapered pin, the fitting Since the female die is guided and positioned by the taper pin, the female die can be attached easily and accurately.

If the punching machine is of a type in which a chase is attached to the upper press board and a dead plate is attached to the lower press board, a die is attached to the chase and a female die is attached to the dead plate. To

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION 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 surface plate 2 as a lower press platen provided below the upper press platen 1. Has a chase 3 attached thereto, while a dead plate 4 is attached to the upper surface of the surface plate 2.

Here, the chase 3 is a general-purpose jig that is accurately positioned and fixed to the upper press platen 1, and the dead plate 4 is also a general-purpose jig that is accurately attached to the surface plate 2.

A 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 sides, and is provided with a punching blade 6 for punching a sheet into a predetermined shape and a ruled line 7 for scoring the sheet.

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

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

Here, since the pressing ruled line 7 is used to score the sheet with the groove 9, when the die 5 and the female die 8 are attached, the die 5 and the die 8 are accurately attached so as not to be displaced. There is a need.

The mounting will be described with reference to FIGS. 2 to 4.

When attaching the die 5 and the female die 8, a plurality of positioning holes 10 are formed in the die 5, and the female die 8 is provided with a positioning hole 11 facing the positioning hole 10. When forming the positioning hole 10 for the die 5, the sleeve 12 is attached to the die 5 and the inner diameter of the sleeve 12 is used as the positioning hole 10.

FIG. 2 (I) 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, a plurality of annular grooves 13a are formed, and each annular groove 13a
An O-ring 14 is attached to the.

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

After the positioning pin 13 is attached, a perforated elastic body 15 made of an elastic member such as rubber is fitted into the positioning pin 13. An adhesive layer 16 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 adhering the adhesive layer 16. Further, a positioning disk 17 made of a metal plate shown in FIG. 2 (II) is attached to the surface of the elastic body 15.

The positioning disk 17 has a positioning pin 13
Has a positioning hole 17a into which a pressure-sensitive adhesive layer 18a and 18b having different adhesive strengths are formed on both surfaces thereof.
The positioning disk 17 is attached to the surface of the.

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

The dead plate 4 removes oil on the surface with alcohol or the like, if 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 in which the upper press board 1 is lowered,
The positioning pin 13 moves to the dead plate 4 while descending.
Is stopped by abutting against, and the upper press platen 1 is slightly lowered, and the relative movement of the upper press platen 1 and the positioning pin 13 pushes the positioning pin 13 into the positioning hole 10. The positioning disk 17 is pressed against the dead plate 4 and attached to the dead plate 4 by adhering the adhesive layer 18a.

After lowering the upper press platen 1, the upper press platen 1
Is raised, the positioning disc 17 remains on the dead plate 4 due to the difference in adhesive force between the pressure-sensitive adhesive layers 18a and 18b provided on both sides of the positioning disc 17, and the upper press platen 1 rises and stops. As shown in (III), the elastic body 15 and the positioning pin 13 are removed.

[0034] In addition, the viscosity Chakuzaiso first positioning disk 17
The adhesion of 8b was stronger than viscous force application tacky Chakuzaiso 16 of the elastic body 15, the ascent of the upper press platen 1, leaving the elastic body 15 in the dead plate 4 side, after rising stop of the upper press platen 1, The elastic body 15 may be removed from the positioning disk 17.

After the positioning disk 17 is transferred to the dead plate 4 as shown in FIG.
As shown in (I), the instantaneous adhesive 20 is applied to the large end surface of the taper pin 19, and the taper pin 19 is inserted into the positioning hole 17a of the positioning disk 17 and bonded to the dead plate 4.

FIG. 4 (II) shows the adhered state 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 hole 11 formed in the female die 8 is shown. Is fitted to the taper pin 19 and the female die 8 is superposed on the dead plate 4.

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

FIG. 4 (IV) shows a positioning state of the female die 8. After the positioning, the female die 8 is fixed to the dead plate 4, and after the fixing, the taper pin 19 is fixed as shown in FIG. 4 (V). By detaching, the attachment of the die 5 and the female die 8 is completed.

Here, when fixing the female die 8, for example, as shown in FIGS. 1 and 4 (V), a tapered hole 21 is formed in the female die 8, and the outer periphery of the tapered hole 21 is tapered. It is possible to adopt a method in which the washer 22 is fitted, the screw 24 is inserted into the elongated hole 23 formed in the washer 22 and the screw is engaged with the screw hole 25 provided in the female die 8.

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, so that the positioning hole 11 of the female die 8 is fitted into the taper pin 19. At this time, even if the female die 8 collides with the taper pin 19, the taper pin 19 does not move or come off, and it is possible to prevent the work of attaching the die 5 and the female die 8 from being redone.

In the embodiment, the die 5 is attached to the chase 3 which is positioned and fixed on the lower surface of the upper press platen 1, and the surface plate 2 is attached.
Female die 8 on the dead plate 4 which is positioned and fixed on the upper surface of the
Although the chase 3 and the dead plate 4 may be installed at the opposite positions, the chase 3 and the dead plate 4 may be omitted and the die 5 may be directly attached to one of the upper press plate 1 and the surface plate 2. The female mold 8 may be directly attached to the other.

Further, in the embodiment, as shown in FIG. 2, when the positioning disk 17 is temporarily fixed to the elastic body 15, the adhesive layer 1 is formed on the back surface of the positioning disk 17.
Although 8b is provided, a magnet sheet is attached to the surface of the elastic body 15 instead of the adhesive layer 18b, and the positioning disk 17 is temporarily fixed by magnetically coupling the positioning sheet 17 made of the magnet sheet and the magnetic material. You may.

[0043]

As described above, according to the present invention, the die and the female die are mounted with high precision without causing a displacement in their relative positions.

Further, when mounting the female die, the positioning hole formed in the female die is fitted into the taper pin, so that the fitting work is easy, and at the time of fitting, the positioning pin and the positioning hole are interposed between each other. Even if there is a deviation, the female die is guided and positioned by the taper pin by the fitting, so that the female die can be attached very easily and highly accurately.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a mounting state of a die and a female die according to the present invention.

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

3 (I) to (III) are cross-sectional views showing the mounting of a positioning disk to a dead plate step by step.

FIG. 4 (I) to (V) are sectional views showing stepwise attachment of a female die to a dead plate.

[Explanation of symbols]

1 Upper Press Plate 2 Surface Plate 3 Chase 4 Dead Plate 5 Die Mold 8 Female Mold 10 Positioning Hole 11 Positioning Hole 13 Positioning Pin 15 Elastic Body 17 Positioning Disc 17a Positioning Holes 18a, 18b Adhesive Layer 19 Tapered Pin 20 Instant Adhesive

Claims (2)

(57) [Claims] 1. A method of mounting a die and a female die on a relatively moved upper press platen and a lower press disc while aligning them with each other, wherein a plurality of positioning holes are formed in the die die and the female die is provided with the positioning holes. Providing a positioning hole corresponding to the positioning hole,
A positioning pin is inserted into the positioning hole of the die, and a perforated elastic body is fitted into the positioning pin and temporarily fixed to the die,
A positioning disc having a positioning hole into which the positioning pin is inserted is superposed on the surface of the elastic body and temporarily fixed, and a die having the positioning disc is attached to one of the upper and lower press plates. Was moved relative to the pressure contacting direction, and the positioning disc was bonded to the other press platen by the adhesive provided on the surface .
Then, the positioning pin and the elastic body are removed , a positioning taper pin is inserted into the positioning hole of the positioning disk, the taper pin is adhered to the other press plate with an adhesive, and then the positioning disk is removed. A method for mounting a die and a female die in which a positioning hole is fitted and the female die is attached to the other press board, and then the taper pin is removed. 2. A chase is attached to a lower surface of the upper press board, and a dead plate is attached to an upper surface of the lower press board,
A die with a positioning pin, an elastic body and a positioning disc attached to the chase is attached, the positioning disc is transferred to the dead plate by the downward movement of the upper press platen, and the taper pin is attached, and the female die is inserted through the taper pin. The die and female die attaching method according to claim 1, wherein the die is attached to the dead plate.