JPS592898Y2 - Connection device for two-sided bolster - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a connecting device for two-sided bolsters.

In order to shorten the setup time for changing molds, that is, to prepare the molds during press work and to efficiently perform press work, it is known to use a two-sided bolster.

Since conventional two-sided bolsters each have a drive device for traveling, control is required to prevent collision and interference between the two bolsters, and the entire device is complicated.

The present invention has a rail that is provided between pedestals provided at the front and rear of the press bed, and each pedestal that faces each other with the press bed in between, one of which is rotatable with a pin and the other is detachable. , two bolsters provided with wheels running on the rails on the lower surface, and the bolsters are spaced apart such that when one of the bolsters is placed on the press bed, the other is placed on the pedestal. One side is rotatable with a pin and the other is detachable, and they are connected by a connecting arm with wheels that run on the rails on the underside of the arm, and was devised to eliminate the drawbacks of the conventional system. This is a connecting device for two-sided bolsters.

Next, embodiments will be described in detail with reference to the drawings.

1 is a press bed, and pedestals 2 and 3 are provided at the front and rear.

4 and 5 are bolsters, and running wheels 4a and 5 are mounted at the four corners of the
a for running on the pedestals 2 and 3 as well as rails to be described later.

The bed 1 is in a position sandwiched between pedestals 2, and the bed 1
Attachment pieces 1a, 1a facing each of the pedestals 2, 3 are provided, and mounting pieces 2a are placed on the pedestals 2, 3 at a position facing the bed 1.

3a is provided.

Reference numerals 6 and 6 denote rails for the running wheels 4a and 5a of the bolsters 4 and 5, and one end is rotatably connected to the mounting piece 2a of the pedestal 2 and the mounting piece 1a of the bed 1 by a pin 7.

Further, the other end of the rail 6 has opposing mounting pieces 1a and 3a.
It is designed to be able to be removably locked.

Reference numeral 8 denotes a connecting arm provided on the facing surfaces of the bolsters 4 and 5, which is rotatably attached to a connecting piece 4b protruding from the bolster 4 with a pin 9, and a locking member 8b formed at the tip is attached to the other side. It is removably engaged with the locking receiving part 5b of the bolster 5.

The connecting arm 8 also has wheels 10 running on the rail 6.
．． 10 is installed.

11 is a guard provided on the rail 6.

At the corner of the bed 1, there are running wheels 4 of the bolsters 4, 5.
A lift mechanism 12 is provided at the same position as a and 5a.

The lift mechanism 12 is a combination of a cylinder 12a and a piston 12b that slides in the vertical direction. It is something.

Although traveling devices for the bolsters 4 and 5 are not shown, a mechanism for rotating the wheels 4a and 5a may be incorporated therein, or the bolsters or the bolster 5 may be connected to a device for towing them.

The present invention has the above configuration, and in FIGS. 1 and 2, the bolsters 4 and 5 are movable while being connected by the connecting arm 8.

In the drawing, the bolster 5 is placed on the bed 1, and the lift mechanism 12 provided on the bed 1 is machined with the traveling wheels 5a placed thereon, so the bolster 5 is in close contact with the bed 1.

Therefore, a clamp device (not shown) is used to attach the bolster 5 to the bed 1.
to perform pressing work.

When the press work on the bolster 5 is completed, the lift mechanism 12 is operated to lift the running wheels 5a, 5a of the bolster 5.
After raising it to the same plane as bed 1, raise the bolster 4,
Move 5 to the right in the drawing, move bolster 4 to bed 1,
The bolster 5 is moved to the pedestal 3, and this time the bolster 4 is fixed to the bed 1.

Since the pedestals 2 and 3 are the places where preparations are made for the next work, a setup work is performed to attach a new mold to the bolster 5 sent to the pedestal 3.

In the example, the position of the mold installed on the bolster was not shown, but if the press is a transfer type and the feed bar is installed in a direction perpendicular to the running direction of the bolster, the processed product will be placed in the first position. As shown in Figure 2, the press is carried from the top to the bottom, so pressing can be performed with the two bolsters connected.

However, when vibration occurs during press work or when it is necessary to monitor the front and rear surfaces of the mold during work, the connecting arm 8 and the rail 6 disengage the locking part at the tip.
If the connecting arm 8 and rail 6 are rotated around the pins 9 and 7 and separated from the bolster being worked on, vibrations during press working will not be transmitted to the insulated and waiting bolster, which will improve worker safety. At the same time, it is possible to pass through the front and rear surfaces of the mold, making it possible to monitor the work status.

As explained above, the present invention is a system in which two bolsters are detachably connected, so the two bolsters can be driven by the traveling mechanism of either one of the bolsters, and if the connecting mechanism is removed, This has the effect that the work can be carried out safely because vibrations during press working are not transmitted to the other standby bolster.

Furthermore, since the connecting arm connecting the bolster is also provided with wheels that run on the rail, the rail and the connecting arm can be rotated together, which also has the effect of making it easier to attach and detach the bolster.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway side view of the entire assembled bolster coupling device of the present invention, FIG. 2 is a plan view of the entire structure, and FIG. 3 is a sectional view of an arm and a rail. 1...press bed, 2,3...cradle, 4,5...
・Bolster, 4a, 5a...Wheel, 6...Rail,
7, 9...pin, 8...arm, 10...wheel,
11...guard, 12...lift mechanism.

Claims (1)

[Scope of utility model registration request] Between the pedestals installed at the front and rear of the press bed, and the pedestals facing each other with the press bed in between, there is a rail with one side rotatable with a pin and the other side detachable. Two bolsters are provided with wheels that run on the rails, and one of the bolsters is spaced apart so that when one of the bolsters is placed on the press bed, the other is placed on the pedestal. 2, characterized in that one arm is rotatable by a pin, the other is detachable, and the arm is connected by a connecting arm provided with wheels running on the rail on the lower surface.
Connection device for surface bolsters.