KR870000310Y1 - Apparatus of press mold support - Google Patents

Abstract

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Description

Supporting device of press mold

1 is a perspective view showing a press.

2 is a perspective view showing a conventional support device.

3 is a cross-sectional view taken along line III-III of FIG.

4 is a cross-sectional view taken along line IV-IV of FIG.

5 is a perspective view showing an embodiment of a support device of the present invention.

6 is a cross-sectional view taken along the line VI-VI of FIG.

7 is a cross-sectional view taken along the line VII-VII of FIG. 6;

8 is a cross-sectional view taken along the line VII-VII of FIG. 6;

9 is a cross-sectional view similar to the seventh view showing another embodiment of the present invention.

10 is a cross-sectional view similar to the sixth view showing yet another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

20: expectation 21: piston

21a: first piston 21b: second piston

28: floating body 31: transmission member

The present invention relates to a support apparatus for a press die used for carrying in and fixing a press die to an appropriate position of a die holder of a press.

In recent years, as the press and the press die are enlarged, the press die is brought into the die holder of the press, and a long time is required for the fixing operation.

For this reason, in order to carry out the press-fixing and carrying out of this press die easily and in a short time, the support apparatus of this kind of press die (henceforth a support apparatus) has been proposed by Japanese Patent Application No. 55-51981.

1 to 4 relate to the above patent application, and the supporting device 1 is mounted and used in the T-shaped grooves 4 and 4, which are laid out in the die holder 3 of the press 2. FIG. .

The support device 1 is formed to a size responsive to the T-shaped groove 4, and is formed by a lower base 5 and a floating body 6 provided free of glass injuries from the base 5. .

The base 5 is a plurality of air passages 8 and the plurality of air passages 8 that communicate with the air passages 8 through which the upper half 5a and the lower half 5b are hermetically coupled through the packing 7 and guide compressed air therein. Cylinders 9 and 9 are formed.

In each of the cylinders 9 and 9, the pistons 10 and 10 are freely protruding upward from the base 5, respectively.

On the other hand, the floating body 6 is mounted on each piston 10, 10 and moves up and down by the protruding mouth of the piston 10. FIG.

In addition, the floating body 6 is divided into an upper half 6a and a lower half 6b, and there is a built-in transmission member 11 for supporting a press mold therein, so that the guide holes 12, 12 are formed in each piston 10, The positioning is performed by regretting the guide pins 13 and 13 protruding from the upper surface of 10).

The carrying-in fixing of the press die by this support device 1 will be described.

First, pressurized air is supplied from the air supply pipe 14 into the air flow path 8 of each support device 1, and the pistons 10 and 10 are projected upwards to raise the floating body 6 so that each transmission member ( The upper surface of the bowl 15 of 11) is projected upward from the upper surface 3a of the die holder 3, as shown by the chain line of FIG.

In this state, a press die (not shown) is placed on each bowl 15 and 15.

This allows the press die to move on the bowls 15 and 15 with a small force.

Then make fine adjustments by moving the press die to the proper position.

Next, one end of the air supply pipe 14 is exposed to the atmosphere, and the compressed air is removed from the cylinder 9 and the air flow path 8, and the pistons 10 and 10 are pushed downward by the weight of the press die. As shown by the solid line, the upper surface of the bowl 15 is lowered from the upper surface 3a of the die holder 3, and the press die is placed at an appropriate position on the upper surface 3a thereof.

Thereafter, the press die is fixed to the die holder 3 by means of a suitable clamping mechanism (not shown).

In addition, when the press die is taken out, the tightening by the fastener is released, and then pressurized air is supplied from the air supply pipe 14 into the air flow path 8, and the piston 10 and 10 are protruded so that the press die is pressed into the die holder (3). The press die is lifted from the upper surface 3a of the c) and moved out with a small force.

In this way, the support device 1 of the patent application is carried out by moving the press die with a small force to carry out, fine-adjust, fix and unload onto the die holder of the threaded die, and can perform the operation simply or smoothly and quickly. . On the other hand, in recent years, since the press die has become very large and large in weight, the support load capacity required for the support device 1 is also large.

However, since the support device 1 has only one piston 10, in order to increase the support load, the number of the pistons 10 or the area of the piston 10 must be increased.

However, in order to increase the number of the pistons 10, the supporting device 1 should be formed at a long length, and in order to increase the area of the piston, the width of the supporting device 1 is increased so that the supporting device 1 is large. It becomes.

Thus, when the support device 1 becomes large, it can be incorporated into the die holder 3 of the press 2, so that the number of support devices is small, resulting in that the total amount of the support undercarriage of each support device does not increase at all.

In addition, it is unreasonable that increasing the pressure of the compressed air requires the formation of a large air supply.

The present invention has been made in view of this point, and an object thereof is to provide a support device having a simple configuration, a small size, and a large support capacity.

The present invention is characterized in that the piston for supporting the press die is formed in multiple stages in the axial direction so as to be compact and have a large supporting load.

Next, the present invention will be described according to the embodiment shown in FIGS. 5 to 10.

5 to 8 show an embodiment of the present invention.

In this embodiment, the floating body 28 is installed on the base 20 using the glass floating material.

The base 20 is manufactured by sequentially stacking the lower member 20a, the intermediate member 20b, and the upper member 20c, and the plurality of pistons 21 protruding upward from the upper member 20c therein. 21) is built in.

Each piston 21, 21 is formed in multiple stages in the axial direction divided up and down with the 1st piston 21a and the 2nd piston 21b, respectively.

A first cylinder chamber 22a is formed between the upper member 20c and the intermediate member 20b to accommodate the first piston 21a, and between the intermediate member 20b and the lower member 20a. The 2nd cylinder chamber 22b which accommodates the 2nd piston 21b is formed.

Both cylinder chambers 22a and 22b communicate with each other through the cross groove 23 and the center through-hole 24 formed in the upper end of the second piston 21b.

In addition, an air flow path 25 communicating with the air supply pipe 14 is formed in the first cylinder chamber 22a at the left end, and the adjacent first cylinder chambers 22a are arranged between the upper member 20c and the intermediate member ( The air flow paths 26 and 25 formed between 20b) communicate with each other in series.

Moreover, in order to maintain the airtightness of the sliding part of each cylinder chamber 22a, 22b and each piston 21a, 21b, the 0 ring 27 is fitted, respectively.

In addition, the floating body 28 is formed by firmly coupling the long side members 28a and 28a by the bolts 29 and 29 to the plurality of interval holding members 28b and 28b, and the first piston 21a and 21a. The gap holding member 28b is coupled by tightening the bolts 30 and 30.

And between each space holding member 28b, 28b, the transmission members 31 and 31 which consist of a needle roller are provided freely about the horizontal axis 32, respectively.

The upper surface of the transmission member 31 protrudes upward from the upper surfaces of the guide walls 33 and 33 fixed on the upper member 20c of the base 20 to guide the vertical movement of the floating body 28.

The supporting device thus formed is used by being fixed in the grooves 34 formed in the die holder 3 of the press as shown in FIG.

Next, the floating operation of the piston 21 according to the present embodiment will be described.

When compressed air is supplied from the air supply pipe 14 through the air flow path 25, it first flows into the lower portion of the first piston 21a of the piston 21 on the left end.

The compressed air is sequentially supplied to the lower side of each of the first pistons 21a connected in series with each of the air flow paths 26 and 26.

And the compressed air supplied below each 1st piston 21a is supplied below each 2nd piston 21b through the cross groove 23 and the center through-hole 24, respectively.

As a result, each piston 21 rises as each first piston 21a and each second piston 21b ascend in each cylinder chamber 22a, 22b, respectively, and is coupled to the first piston 21a. The floating body 28 is projected upward from the upper surface 3a of the die holder 3 together with the transmission member 31.

Thus, in the present embodiment, since each piston 21 is formed in two stages in the axial direction, the supporting load can be doubled as compared with the piston in the first stage, and a large press die also has an upper surface of the die holder 3. It is possible to float and support from (3a), and to carry in, fine tune, fix and take out the press die easily and quickly.

In addition, the settling of the floating body 28 is performed by causing the air passage 25 to communicate with the atmosphere and pushing down each of the pistons 21 and 21 by the weight of the press die.

In addition, when the air passage 25 communicates with the atmosphere by inserting a compression spring for automatic restoration between the vestibule of the first cylinder chamber 22a and the upper surface of the first piston 21a. The pistons 21 and 21 may be formed to actively sink.

In addition, the transmission member 11 used for the said patent application may be used instead of the needle roller bearing as shown in FIG.

Since each of the rolling members 11 sinks independently of the rolling member 11, even if there is a micro convex portion on the bottom surface of the press die, only the bowl 15 abuts against the micro concave portion will sink. Fine adjustment is performed satisfactorily to match the proper position while maintaining the horizontal position.

Alternatively, the transmission member may be directly attached on the pistons 21 and 21 as shown in FIG. 10 instead of attaching to the pistons 21 and 21 through the floating body 28 as in the above embodiment.

In this case, the convex portion of the lower surface of the press die is absorbed by the protrusions of the pistons 21 and 21 independently.

The piston may be formed in three or more stages depending on the size of the supporting load, the size of the press, and the like.

In addition, a liquid such as pressurized oil or water may be used in place of the compressed air of the piston.

Thus, since the support device of the present invention is formed in multiple stages in the axial direction of the piston, the piston is small in size but its supporting load is large, and furthermore, the structure is simple and the cost is low.

In addition, the support device of the present invention can also be used as a transport transmission device to be placed on the conveying path in order to transport a heavy object other than a press die.

Claims (3)

A plurality of pistons are provided so as to protrude freely in the up and down direction at the base, and a plurality of transmission members are provided on the piston to support the press die, and the pistons are formed in multiple stages in the axial direction, respectively. Supporting device of one press mold. 2. The apparatus as claimed in claim 1, wherein each transmission member is attached to a floating body attached on the piston, respectively. 2. The apparatus as claimed in claim 1, wherein each transmission member is attached to the piston and formed to protrude independently.