JPH09248798A - Desk-type air press machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a desk-type air press machine capable of being used by being placed on a workbench by miniaturizing the outside dimension of a general-purpose middle-type air press (1.5 to 3 tons). SOLUTION: A single air cylinder 1 as a pneumatic actuator for generating thrust is miniaturized by being shared with a main body base or built in it, the cylinder diameter is approached to the outside dimension of the main body base as far as possible, and thrust is increased. Compressed air of a pressure chamber (b) 14 is removed from a state where a piston 2 is in the top dead center, it is put into a pressure chamber (a) 13, and the position of the piston 2 is moved to the bottom dead center. With this movement, an upper die base plate 10 is lowered through piston rods 3, an upper die 11 and a lower die 12 are brought in pressure-contact with each other, and press work is performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air press used for dividing printed boards and the like, and more particularly to a tabletop air press.

[0002]

2. Description of the Related Art A conventional technique will be described with reference to FIG. FIG. 7 is a side view of a conventional floor type air press machine. The body base plate 25 is fixed on the angle leg 26.
The lower base 27 and the casting arm 24 are provided on the main body base plate 25.
Has been fixed. The tandem air cylinder 15 is fixed to the head of the casting arm 24. Piston rod 1
A stopper 23 is provided on the upper part of 8. The lower part of the piston rod 18 descends downward through a through hole 30 provided in the casting arm 24. The upper die 28 is fixed to the lower end of the piston rod 18, and the lower die 29 is fixed to the upper surface of the lower die base 27.

Next, the operation will be described with reference to FIGS. 8 and 9. 8 and 9 show the tandem air cylinder 15 of FIG.
It is a side view including the sectional view of. In FIG. 8, the pressure chamber (a) 19 and the pressure chamber (b) 20 of the tandem air cylinder 15 are shown.
It is a state in which the compressed air inside is removed and the compressed air is introduced into the pressure chamber (c) 21 and the pressure chamber (d) 22. As a result, the upper piston 16 and the lower piston 17 are positioned at the top dead center, and the upper die 28 fixed to the lower end of the piston rod 18 is separated from the upper portion of the lower die 29 and stopped. In FIG. 9, the compressed air in the pressure chamber (c) 21 and the pressure chamber (d) 22 of the tandem air cylinder 15 is released,
It is a state in which compressed air is introduced into the pressure chamber (a) 19 and the pressure chamber (b) 20. As a result, the upper piston 16 and the lower piston 17 are positioned at the bottom dead center, and the upper die 28 fixed to the lower end of the piston rod 18 is accordingly moved to the lower die 29.
It is stopped by being pressed against the upper part of.

[0004]

The first problem is that the equipment becomes heavy. The reason is that the tandem air cylinder 15 for generating the pressing force is fixed on the casting arm 24 as shown in FIG. The casting arm 24 must be strong enough to withstand the weight of the tandem air cylinder 15 and the pressing force generated by the cylinder, and is therefore a heavy object such as cast iron. The same applies to the main body base plate 25 and the angle legs 26 for supporting them. For this reason, there is a problem that the weight of the entire equipment becomes heavy.

The second problem is that the center of gravity of the equipment is at a high position, and the main body base plate 25 and the angle leg 26 must be made large due to instability.
The reason is that the tandem air cylinder 15 for generating the pressing force is fixed on the casting arm 24 as shown in FIG. As shown in FIG. 7, the tandem air cylinder 15, which is a pneumatic actuator, is located above the upper mold 28 and the lower mold 29. In other words, the heavy object is located above the mold. For this reason, the center of gravity of the equipment becomes high.
Also, there is a problem that the angle leg 26 has to be enlarged.

An object of the present invention is to provide a table-top air press machine in which a pneumatic actuator for generating a press output is built in a base plate of an equipment main body to reduce heavy parts and to reduce size and weight. To provide.

[0007]

A desk-top air press machine of the present invention has a pair of upper mold lower molds, and an air cylinder which is a pneumatic actuator is attached to a lower body base (1 in FIG. 1). Built in.

Further, the piston (2 in FIG. 3) of the air cylinder is a single air cylinder whose diameter is as close as possible to the outer shape of the main body base, and further has means for transmitting the operation of the single air cylinder to the upper die. The means for transmitting to the upper mold was composed of at least two piston rods (3, 10 in FIG. 3).

According to the present invention, at least two piston rods are provided in the air cylinder built in the main body base,
The upper mold base is fixed to this, the upper mold is fixed to this upper mold base, while the lower mold is fixed to the main body base plate. By driving the air cylinder, the upper mold and the lower mold are opened and closed via the piston rod to come into contact with each other, and the size and weight are reduced by incorporating the air cylinder.

[0010]

Next, the present invention will be described with reference to the drawings.

FIGS. 1 and 2 are a side view and a plan view of a first embodiment of the present invention, and FIGS. 3 and 4 are sectional views and views showing a state before and during use of this embodiment, respectively. 5 and 6 are plan views of the second and third embodiments of the present invention.

In FIG. 3, a single air cylinder 1 as a pneumatic actuator doubles as a main body base unit and is made of an aluminum alloy. The piston 2 is inside the single air cylinder 1, two piston rods 3 are fixedly provided, and are fixed by fixing bolts 6, respectively. A lower die base plate 7 is fixed to the upper portion of the single air cylinder 1, and a pressure chamber (a) 1 is provided above the piston 2 in the single air cylinder 1.
3, the pressure chamber (b) 14 is formed on the lower side.
Two bushes 4 are fixed to the lower mold base plate 7.
Two linear ball bushes 5 are fixed to the lower die base plate 7 so as to be located right above the bushes 4. The two piston rods 3 extend upward through the bush 4 and the linear ball bush 5. An upper die base plate 10 is provided on an upper end portion of the piston rod 3, and is fixed by an upper fixing bolt 8 and a lower fixing bolt 9, respectively. A lower die 12 is fixed to the upper surface of the lower die base plate 7 and an upper die 11 is fixed to the lower surface of the upper die base plate 10, and the lower die 12 and the upper die 11 are arranged so as to face each other.

Next, the operation of this embodiment will be described with reference to FIGS.

FIG. 3 shows a state before use. In the single air cylinder 1, the compressed air in the pressure chamber (a) 13 is removed and the compressed air is introduced into the pressure chamber (b) 14 so that the piston 2 is top dead. It is still at a point. As a result, the two piston rods 3 move up along the linear ball bushing 5, the upper mold base plate 10 fixed to the upper end moves up, and the upper mold 11 and the lower mold 12 are opened.

Although FIG. 4 shows a state in use, contrary to FIG. 3, compressed air in the pressure chamber (b) 14 in the single air cylinder 1 is discharged and compressed air is put in the pressure chamber (a) 13. ,
The piston 2 is stationary at the bottom dead center. As a result, the two piston rods 3 descend along the linear ball bushing 5, and the upper mold 11 and the lower mold 12 are closed and brought into a state of pressure contact (pressing).

Next, the second and third embodiments of the present invention will be described.

In the above-described first embodiment, there are two piston rods 3 as shown in FIG. 2, but in the second embodiment, as shown in FIG. The base plate 10 is enlarged and four piston rods 3 are provided. Further, as in the third embodiment shown in FIG. 6, three piston rods 3 may be provided for the upper base plate 10 having a triangular shape.

Further, although the aluminum alloy is used as the material of the single air cylinder 1 in FIG. 3 in order to reduce the weight, the material is not limited to this and a stainless steel material may be used.

In the above-described embodiment, the single air cylinder 1 which is a pneumatic actuator is also used as the main body base unit. However, the portion 1 in FIG. It is also possible to provide a single air cylinder of approximately the same size as that of the single air cylinder, and to make the outer diameter of the single air cylinder having the cylinder diameter of the piston 2 as close as possible.

[0020]

The first effect is that the weight of the equipment can be reduced.

This is because the air cylinder, which is a pneumatic actuator, is built into the base plate of the equipment main body, so that the casting arm can be eliminated.

The second effect is that the outer shape of the equipment can be miniaturized. The reason is that
This is because the air cylinder, which is a pneumatic actuator, is built into the base plate of the equipment main body, and the casting arm and pneumatic actuator are eliminated from around the upper mold.

The third effect is that the center of gravity of the equipment can be lowered. The reason is that
This is because the air cylinder, which is a pneumatic actuator, is built in the equipment main body base plate, and the casting arm and the pneumatic actuator are eliminated from the periphery of the upper mold, whereby the weight above the main body base plate can be reduced.

The fourth effect is that it can be made into a table. The reasons are the first effect and the second effect.
This is because it is possible to reduce the size, the weight, and the center of gravity with the contents shown in the third effect and the third effect, and the angle leg for supporting the housing is not necessary. By eliminating the angled legs, it is possible to install the equipment body anywhere on the workbench.

[Brief description of drawings]

FIG. 1 is a side view of a first embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a cross-sectional view showing a state before use of the first embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a state of using the first embodiment of the present invention.

FIG. 5 is a plan view of a second embodiment of the present invention.

FIG. 6 is a plan view of a third embodiment of the present invention.

FIG. 7 is a side view of an example of a conventional air press machine.

8 is a side view including a partial cross section of the state before use in FIG. 7. FIG.

9 is a side view including a partial cross section of the state in use of FIG. 7. FIG.

[Explanation of symbols]

 1 Single Air Cylinder 2 Piston 3, 18 Piston Rod 4 Bushing 5 Linear Ball Bushing 6 Fixing Bolt 7 Lower Mold Base Plate 8 Upper Fixing Bolt 9 Lower Fixing Bolt 10 Upper Mold Base Plate 11, 28 Upper Mold 12, 29 Lower Mold 13 , 19 Pressure chamber (a) 14, 20 Pressure chamber (b) 15 Tandem air cylinder 16 Upper piston 17 Lower piston 21 Pressure chamber (c) 22 Pressure chamber (d) 23 Stopper 24 Cast arm 25 Main body base plate 26 Angle leg 27 Lower mold base

Claims (3)

[Claims] 1. A pair of upper and lower molds, a means for incorporating a pneumatic actuator in a lower body of a base for fixing the lower mold and for transmitting the operation of the pneumatic actuator to the upper mold. A tabletop air press machine characterized by being configured to reduce the external dimensions. 2. The cylinder diameter of the pneumatic actuator is brought as close as possible to the outer dimension of the fixed base of the lower die,
The desk-top type air press machine according to claim 1, wherein a high output is produced as a single cylinder. 3. The table-top air press machine according to claim 1, wherein the means for transmitting to the upper die includes at least two piston rods.