JPS6027535Y2 - Lift cylinder head switching device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a switching device for the head of a lift cylinder used in a plate material supply device for supplying plate materials to a press machine.

The lift device is used to push up the board from below in order to maintain the take-out height within a certain range when taking out the loaded board one by one from the top at the supply station where the board is supplied. be done.

The products handled by press machines are diverse and miscellaneous because they are produced in a wide variety and in small quantities, and the plates used as materials also vary in size.

The size of the head depends on the material, and if it is not a certain size, the plate material to be pushed up will fall.
It is not possible to use a small head common to both large and small plates.

Of course, it is impossible to use a head larger than the plate material because the head will interfere with other members such as the magnetic floater.

Previously, heads had to be replaced manually depending on the size of the plate material.

This replacement work required time and effort, and went against the desire to shorten setup time.

The present invention has been made to solve the above problems.

Hereinafter, an embodiment of the present invention will be described based on the drawings.

In FIGS. 1 and 2, adjacent to the press machine 1,
A plate supply device 2 is installed.

The plate supply device 2 is connected to plate loading stations 4 and 5, plate supply station 3, and the like.

At the plate supply station 3, the plates 10 are fed one by one toward a press machine.

At the board loading stations 4 and 5, boards are loaded onto pallets 9.

The plates loaded on the pallet move together with the pallet clockwise in Figure 1 and reach the plate supply station 3, where the plates are taken out one by one and the empty pallet is removed. Move clockwise and return to the board loading stations 4 and 5.

This material supply device is disclosed by the same applicant.

At the material supply station 3, a vacuum cup 11 picks up the stacked plates one by one starting from the top, raises them, and delivers them to a feed bar of a transfer device attached to the press machine.

In order to keep the height of the vacuum cup 11 substantially constant when it is suctioned, a lift cylinder 6 for pushing up the plate material is provided on the machine base 21.

The plate material 10 is a head 12 provided on the piston rod 7.
．． 13 and is pushed up.

In FIGS. 3 and 4, at the plate supply station 3, there is a positioning device 19 for pushing the side surface of the plate 10 to correct the position and position it directly below the vacuum cup 11, and a positioning device 19 for pushing the side surface of the plate 10 and positioning it directly below the vacuum cup 11. A magnetic floater 20 is provided to prevent sheet attraction.

An inner head 12 is fixedly attached to the piston rod 7 of the lift cylinder 6, and an outer head 13 is provided which is adapted to this and can be connected by means of a pin 14.

(See Figures 1 and 2) The pin 14 is connected to the inner head 1.
2 and the outer head 13 so that it can be freely inserted and removed.

A stepped portion is provided at one end of the pin 14, which engages with the movable member 16 and is restrained in the longitudinal direction of the pin 14, and has a structure in which the pin 14 can be freely attached and detached by a notch above the stepped portion in a direction perpendicular to the stepped portion.

The moving member 16 is connected to a cylinder 17 fixed to the machine base, and is movable while being guided by a guide rod 18.

A locking pin 15, 15' is provided at the bottom of the outer head and can be freely moved in and out by a spring 8 shown in FIG.

A recess is provided in the pin 14 at a position corresponding to this lock pin.

That is, when the pin 14 is moved to the right by the cylinder 17, the recess fits into the lock pin 15, and when the pin 14 moves to the left, it fits into the tank pin 15'.

The effect will be explained below.

(b) When handling large plates.

When the pin 14 is moved to the right by the cylinder 17, the recess of the pin 14 fits into the locking pin 15, and the outer head 13 is connected to the piston rod 7 of the lift cylinder via the inner head 12.

When the lift cylinder 6 is actuated to raise the histone rod 7, the outer head 13 rises together with the pin 14, pushing up the plate material.

At this time, the pin 14 is removed from the moving member 16.

(b) When handling small plates.

When the cylinder 17 moves the pin 14 to the left, the inner head 12 is released from the pin 14 and the pin 14 is moved to the left.
The recess accommodates the locking pin 15'.

When the lift cylinder 6 is activated to raise the piston rod 7, the inner head 12 rises and pushes up the plate material.

At this time, the outer head 13 remains together with the pin 14.

Since the present invention has the above-described structure, it is possible to switch between both heads 13 and 12 depending on the size of the plate material, and the switching operation is instantaneous, reducing setup time and saving the operator time. This has the effect of reducing the burden on people.

[Brief explanation of the drawing]

Fig. 1 is a top view of the entire board supply device, Fig. 2 is a sectional view taken along ■-■ in Fig. 1, Fig. 3 is a detailed view of the concave portion in Fig. 2, and Fig. 4 is a -IV in Fig. 3. 1 is a press machine, 2 is a board supply device, 3 is a board supply station, 4 is a board loading station, 5 is a board loading station, and 6 is a lift cylinder. , 7 is a histone rod, 8 is a spring, 9 is a pallet, 10 is a plate material, 11 is a vacuum cup, 12 is an inner head, 13 is an outer head, 14 is a pin, 15 is a lock pin, 16 is a moving member, 17 18 is a cylinder, 18 is a guide rod, 19 is a positioning device, 20 is a magnetic floater, and 21 is a machine base.

Claims (1)

[Scope of utility model registration request] In a lift cylinder installed at a plate supply station of a plate supply device that supplies plates to a press machine, an inner head 12 is fixed to the piston rod 7 of the lift cylinder 6, and the lower part of the inner head 12 is movably raised and lowered. A removable pin 1 that fits together and passes through them laterally.
4, an outer head 13 is provided which can be freely connected, and one end of the pin 14 is restrained in the axial direction of the pin 14.
A movable member 16 having a removable notch is provided above in a direction perpendicular to this, and the movable member 16 is connected to the movable member 16.
A lift cylinder head switching device characterized in that a cylinder 17 that reciprocates in the axial direction of a pin 14 is fixed to a machine base.