JPH0418739Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to an in/out device for a liquid tank door.

(Prior art) Conventionally, for example, in a large electrical discharge machining tank (liquid tank),
In order to take in and out processing molds etc. installed in the tank body, as shown in FIG.
A door 4 is provided which can be attached or detached with bolts and nuts 3. However, door 4 is very heavy (approximately 150Kg)
Therefore, it was necessary for several workers to carry out the attachment and detachment work, and it was also dangerous.

Further, there are cases where the door 4 is lifted up using a whirlpool crane or the like to perform attachment/detachment work, but there are problems in that work efficiency is poor and equipment costs are high.

(Purpose of the invention) The present invention was made in order to solve the above-mentioned conventional problems.
The purpose is to allow even human workers to easily and safely attach and detach the door.

(Structure of the invention) For this reason, the present invention provides a liquid layer door in which the tank body has a side wall opening, and a door that covers the side wall opening from the outside of the tank body is detachably provided on the side wall. In the apparatus, the horizontal shaft member is rotatably supported at both ends substantially parallel to the work floor by a bracket attached to the outer surface of the door, and the horizontal shaft member has a roughly L-shape. A hand-operated member is rotatably fitted and supported by a cylindrical portion extending outward from the tank body, and a wheel that rolls while being guided by a rail laid along the side wall of the tank body is rotatably located at the bottom. A support frame is attached to the support frame, and one end is pivotally attached to the upper part of the support frame with a pin, while the other end is fixed to the horizontal shaft member and rotates together with the horizontal shaft member, and the door is connected to the side wall of the tank body of the door. When removing the link member, the horizontal shaft member is rotated by the operation of the manual operation member, and the other end of the link member is rotated about the pin as a rotation center to lift the door, and the link member is separated from the side wall opening. The present invention is characterized by comprising a support member that is disposed above the rail in a transverse position of the door, and that the door enters between and supports the door from both sides.

(Effects of the invention) According to the invention, when the hand-operated member is operated, the door can be moved up (down) and backward (forward) through the link member for attachment/detachment, making the attachment/detachment operation easy and Be able to do it safely.

Further, when the support frame is moved laterally, the lifted door is supported by the support member, so that the door is prevented from falling down during the work of taking in and out processing molds, etc.

(Embodiments) Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, a square box-shaped electric discharge machining tank 10 is provided, and a side wall 12 of a tank body 11 of the machining tank 10 has a side wall opening 13 for taking in and out a machining mold, etc. It is provided.

A door 1 is attached to and detached from the side wall opening 13 from the outside using bolts and nuts 14, . . . , 14 at the four corners.
5 is provided.

Brackets 16a, 16a are provided on the outer surface of the door 15.
is installed. A horizontal shaft member 17 is rotatably supported at both ends of the brackets 16a, 16a substantially parallel to the work floor 18 in front of the side wall 12 of the tank body 11.

A rail 19 extending along the side wall 12 and having a chevron-shaped cross section is laid on the work floor 18 .

When the door 15 is removed from the side wall 12 of the liquid tank main body 11, each of the support frames 21, 21 supporting the door 15 is rotatably attached to the lower part thereof, and is guided by the rail 19. Each has wheels 20 that roll.

The horizontal shaft member 17 includes link members 22, 22.
can be installed. Each link member 22 has one end pivotally connected to the upper part of the support frame 21 with a pin 23, and the other end fixed to the horizontal shaft member 17 and rotates together with the horizontal shaft member 17.

A manual operation member 25 is also attached to the horizontal shaft member 17. The manual operation member 25 has a roughly L-shape, and is rotatably fitted and supported by a cylindrical portion 24 projecting outward from the horizontal shaft member 17 .

When the door 15 is removed from the side wall 12 of the tank body 11, the horizontal shaft member 17 is rotated by the operation of the manual operation member 25, and the other end of each link member 22 is rotated about the pin 23. The door 15 is rotated as shown in FIG. Thereby, the door 15 is supported by the support frames 21, 21.

It is better to position the grip portion 25a of the manual operation member 25 rearward than the axes of the pins 23, 23 of the support frames 21, 21, and to set the lever ratio to be long, so that the door 15 can be attached and detached using the principle of leverage. Work can be done easily.

At a side position of the tank body 11, that is, at a position where the support frames 21, 21 are traversed, a support frame 2 is provided.
A support member 26 that receives the door 15 supported by 1 and 21 from the transverse direction and supports the door 15 so that it does not fall down.
26 are arranged.

Note that 27 is a receiving tray that accommodates the processing liquid spilled from the tank main body 11.

With the above configuration, when removing the door 15, remove the bolt/nut 14 and turn the manual operation member 25 to the upper position (see the two-dot chain line in FIG. 1).
When you pull down the pin 2 of the support frame 21
3 as a fulcrum, the door 15 moves upward and backward via the link member 22 (see the two-dot chain line in FIG. 2),
It is removed from the side wall 12.

At this time, since the door 15 moves upward in an arcuate manner, it does not interfere with the tray 27.

In this state, when the support frame 21 is moved to a side position of the tank body 11, the door 15 is supported by the support member 26 so as not to fall down.

After the door 15 is supported by the support member 26, processing molds and the like are taken in and out through the opened side wall opening 13.

Next, when installing the door 15, reverse the above procedure, that is, move the support frame 21 sideways,
With the door 15 facing the side wall opening 13, the manual operation member 2
When the door 15 is lifted upward, the pin 23 of the support frame 21 is used as a fulcrum, and the door 15 is lifted up via the link member 22.
moves forward while moving downward (see solid line in FIG. 2), and the side wall opening 13 is closed.

Then, when the bolts and nuts 14 are tightened, the installation work is completed.

Note that the manual operation member 25 can be rotated to the lower position (see the solid line position in FIG. 1) when not being operated.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an electric discharge machining tank equipped with a door access device according to the present invention, Fig. 2 is a sectional view of the main part of Fig. 1, and Fig. 3 is a perspective view of a conventional electric discharge machining tank. . 10... Electric discharge machining tank, 11... Tank body, 12...
...Side wall, 13...Side wall opening, 15...Door, 17...
...Horizontal shaft member, 18...Working floor, 19...Rail,
21... Support frame, 22... Link member, 2
5... Manual operation lever, 26... Support member.

Claims (1)

[Scope of Claim for Utility Model Registration] A liquid layer door entry/exit device in which a tank body has a side wall opening, and a door that covers the side wall opening from the outside of the tank body is removably provided on the side wall, A horizontal shaft member is rotatably supported at both ends substantially parallel to the work floor by a bracket attached to the outer surface of the door, and a horizontal shaft member having a roughly L-shape extends outward from the horizontal shaft member. A hand-operated member rotatably fitted and supported by the side-extruding cylindrical portion, and a wheel that rolls while being guided by a rail laid along the side wall of the tank body are rotatably attached to the lower part. A support frame, one end of which is pivotally attached to the upper part of the support frame with a pin, and the other end of which is fixed to a horizontal shaft member and rotates together with the horizontal shaft member, when the door is removed from the side wall of the tank body. a link member that lifts the door by rotating the horizontal shaft member by operating the manual operation member and causing the other end to rotate about the pin as a rotation center;
A liquid tank door comprising: a support member disposed above the rail at a transverse position of the door remote from the side wall opening, the support member intervening to support the door from both sides; Loading and unloading device.