JPS626040Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a board supply device.

When supplying board materials to a press machine, etc., a vacuum cup is used as a means to take out the accumulated board materials one by one from above, one by one.
The method of suctioning and supplying sheets is superior in terms of ease of operation, and is therefore commonly adopted.
Conventionally used methods are to simply adsorb the board with a vacuum cup, or use pressure rods on both sides of the vacuum cup to hold down the periphery of the board, and then use a vacuum cup to adsorb the central part of the board to hold the board. A method has been adopted in which the stacked plates are curved into a mountain shape and the resulting plates are shifted laterally to make it easier to remove the stacked plates.

In these methods, the former
It is difficult to reliably separate and adsorb one sheet at a time, especially when the surfaces of the sheets are under conditions of good adhesion, or when there are burrs and the sheets are stuck together or in a state where it was difficult to separate them. In some cases, it is easy to cause problems such as lifting two or several sheets at the same time, and in the latter case, even if it is possible to pick up one sheet at a time, when lifting, However, since it scratches the surface of the board underneath, it is likely to cause scratches, and especially if there are burrs around the periphery of the board to be lifted, the scratched surface of the board will be scratched and the product value will be reduced. It was even hot.

This invention sucks the board and lifts the peripheral part before the central part, lifts the board in a bowed state, returns the board to a horizontal state, carries it to a predetermined position, and inverts the vacuum cup with air. The purpose of the present invention is to provide a plate material supplying device that feeds and releases the material reliably, and controls the supply of the material.

The drawing shows a partially cutaway front view of the plate material feeding device according to the present invention, and shows an example in which vacuum cups are used in the center and on both sides thereof.

In the figure, 1 is a vacuum cup mounting base connected to a lifting device, and 2 is a stopper, which is fitted into the inner cavity 5 of a stopper holding cylinder 4 integrally attached to the center of the mounting base 1 with a screw 3 etc. so as to be able to move up and down. be done. A vacuum cup 8 is provided at the tip of the stopper 2.

Reference numeral 6 denotes a spring fitted in the holding cylinder 4, which serves to constantly press down the stopper 2 with an appropriate pressure.

7 is a screw for preventing the stopper 2 from coming off.

8 is a vacuum cup provided on both sides of the stopper 2, and the mounting base 1 is attached to the rod part of the vacuum cup.
The piston 10 of the cylinder 9 is connected to the piston 10 of the cylinder 9 mounted on the cylinder 9.

11 is the mounting base 1 and vacuum cup 8'
This is a spring installed between the

A vacuum pump (not shown) is connected to the vacuum cups 8, 8' and communicates with the hole 12.
The vacuum cups 8, 8' are activated.

Reference numeral 13 indicates a stacked thin plate material such as an aluminum plate for processing.

In the above, when the plate material 13 is not attracted, that is, when this supply device is not in contact with the plate material 13, the central vacuum cup 8 is moved by the repulsive force of the spring 6 by the amount of play with respect to the mounting base 1, as shown by the chain line. When pressed downward, the piston 10 is released and the vacuum cup 8'
is pushed down to the position shown by the chain line by the repulsive force of the spring 11, and its lower surface is located on the same horizontal line as the lower end surface of the central vacuum cup 8.

To pick up one of the stacked plates 13, the mounting base 1 is suspended so that the lower surfaces of the vacuum cup 8 at the tip of the stopper 2 and the vacuum cups 8' on both sides are pressed against the surface of the plate 13. Thereafter, the vacuum cups 8, 8' are operated to attract the plate material 13.

Then, the cylinder 9 is actuated to follow the piston 10 and pull up the vacuum cup 8' against the spring 11.

The center part of the board material 13 is pressed with the vacuum cup 8 at the tip of the center stopper to securely fix the center part of the board material, and both sides of the board material are pulled up by suction by the vacuum cup 8', so that the board material 13 is bent into a bowed state and the piled up material is removed. Even when the plates are in close contact with each other, they can be easily separated.

Subsequently, by raising the vacuum cup mounting base 1, only one of the uppermost plate members 13 is reliably suctioned and lifted up by the vacuum cups 8, 8'.

Since the plate material 13 rises with its edges deflected upward,
There is no damage to the lower board material when it is lifted.

When the plate material 13 is lifted, the cylinder 9 is then released and the piston 10 and therefore the vacuum cup 8' are allowed to hang down, and the plate material 13 becomes horizontal, and when it is fed to the next process, it is moved in the opposite direction to the vacuum cups 8, 8'. Air is sent to and the plate material 13 is released at once to complete the series of operations. If air is not sent in the opposite direction to the vacuum cups 8, 8', the plate may not fall horizontally due to residual pressure.

In addition, the plate warps in a bow when it is suctioned upward, but even if the plate exceeds its elastic limit, the end of the stopper is a vacuum cup, so when the cylinder 9 is released, the plate will return to its original flat shape. The board material does not get bent.

As described above, according to the present invention, each of the stacked boards can be reliably separated and pulled up, and there is no risk of damaging the surface of the underlying board when pulling up. Warps that occur during lifting are returned to their original flatness at the same time as lifting.
It has a number of excellent features, such as being able to reliably supply the material by sending air in the opposite direction to the vacuum cup when the plate is removed from the vacuum cup after being fed.

[Brief explanation of the drawing]

The drawing shows a partially cutaway front view of the plate supply device according to the present invention. 1 is a vacuum cup mounting base, 2 is a stopper, 4 is a stopper holding cylinder, 5 is a bore, 6 is a spring, 8, 8' are vacuum cups, 9 is a cylinder, 10 is a piston, 11 is a spring, 12
hole, 13 boards.

Claims (1)

[Scope of utility model registration request] In a sheet material supply device that adsorbs and supplies sheet materials with a vacuum cup, a stopper having a vacuum cup at the tip is provided in the center of a vacuum cup mounting base connected to a lifting device, and vacuum cups equipped with cylinders and pistons for lifting are provided on both sides of the stopper. A means for reversing air is provided at the top, the lifting device is lowered to adsorb the plate material with a vacuum cup, the cylinder/piston is raised to deflect the plate material, and after the lifting device is raised, the cylinder/piston is lowered to prevent the plate material from warping. return,
A plate material supply device characterized by sending air back to the vacuum cup when releasing the plate material.