JPH0130570B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a plate holding device.
This device is used as a so-called material supply device in which plates to be supplied to a transfer press are loaded and taken out in order from the top.

The plate materials handled by the material supply equipment include blank materials and regular length materials cut into short pieces, but recently, due to material yield, plate manufacturing, or transfer processing reasons, the center part has been welded. Those who were present decided to join the group.

An example of plate materials welded in this manner is shown in FIG. In the figure, two plates are butt welded at the center. This is because it would take time and money to finish the welded part flat, and the unevenness of the welded part would not be a problem for products made from the plate material. is uneven.

These plates are loaded on a conveyor, transferred to a stage where the plates are taken out from above, and pushed up by a lifter. In this case, when the plate material is on the conveyor, the adverse effect of the uneven portion on the conveyance can be eliminated by taking measures such as receiving the plate material on a relatively wide surface or providing a guide if necessary. However, when pushing up the plate with the lifter, the area of the plate receiving part of the lifter is significantly limited due to the relationship with other members such as a conveyor, and as a result, the plate becomes unstable and the function of taking out the plate is limited. It will be damaged.

The present invention has been made to solve the above problems, and will be described below based on the drawings, which are one embodiment of the present invention.

FIG. 1 shows a top view and a sectional view of the plate material. The plate material is made up of two plate pieces that are butt welded together at the center. As shown in the cross-sectional view, the welded portion 1a is slightly uneven.

FIG. 2 is a diagram showing the concept of the presser device 3,
The plate material 1 that has come to the plate material take-out stage is pushed up by the lift device 2 with the outer circumferential upper surface portion thereof being restricted.

FIG. 3 shows a longitudinal sectional view of the plate material take-out stage section. The plate materials 1 loaded on the conveyor 16 are transferred to the main stage. At this stage, the plate material 1 is suctioned by the vacuum cup 4 in order from the top, raised along with the vacuum cup 4, delivered to a feed bar of a transfer or a carrier of an intermediate conveying device, and then formed by a transfer press.

The lift device 2 is provided to maintain the height of the upper surface of the loaded plates within a certain range, and a member for receiving the plates moves up and down between the conveyors 16.

A frame 12 is horizontally movable on a body 18, a cylinder device 15 is fixed to the frame 12, and a guide 8 is connected to a piston rod of the cylinder device 15.

A threaded rod 13 is rotatably provided in the frame 12 and is regulated in the axial direction,
The threaded rod 13 is screwed into a threaded hole provided in the body 18. A handle is fixed to the threaded rod 13. A guide rod 14 is fixed to the guide 8, and the guide rod 14 is slidably fitted into a hole provided in the body 18.

A cylinder 7 is fixed to the guide 8, and a piston 6 is fitted into the cylinder 7. piston 6
A rotating body 5 is connected to the piston rod 6a. On the other hand, the cylinder 10 is attached to the piston rod 6a.
is fixedly installed, and a piston 9 is fitted into the cylinder 10. The piston 9 rotates the rotating body 5 clockwise (third
(in the figure) serves to prevent rotation. The cylinder 10 is guided by eight guide parts,
A limit switch 11 that comes into contact with the lower part of the cylinder 10 to detect the lower limit of the cylinder 10, piston 6, etc. is fixedly installed on the guide 8 section.

The structure is such that when the threaded rod 13 is turned by the aforementioned handle, the frame 12, the guide 8, etc. move, and the guide etc. are moved relative to the frame 12 by the cylinder device 15.

A pin 17 is fixed to the body 18 above the piston 9 and facing the piston 9.

In FIG. 4, the part of the rotating body 5 that contacts the piston 9 is divided into two parts, and a pin 17 is inserted into this gap.
The positional relationship is such that A magnetic floater 20 is provided at the top of the fuselage 18. The magnetic floater 20 serves to separate the plates 1.

The effect will be explained below.

In FIG. 3, when the plate material 1 is transferred to the plate material take-out stage by the conveyor 16, the threaded rod 13
The guide 8, whose position has been adjusted in advance by the handle, is advanced (moved toward the plate) by the cylinder device 15 and comes to a position where it guides the plate.

The plate material 1 is pushed up by a lift device 2. In this case, the jaws of the rotating body 5 are pushed by the upper peripheral surface of the plate 1, and the rotating body 5 is urged counterclockwise by the piston 9, so as the plate 1 rises, the rotating body 5 will rise while holding down the peripheral upper surface portion of the plate material 1. Piston 9 is pin 1
7, the rotating body 5 rotates about the connection point with the piston rod 6a while contacting the piston 9 as the plate 1 rises. When the cylinder 10 rises relative to the piston 9 and the piston 9 presses the limit switch 19, compressed air is supplied to the cylinder device 15 in response to a signal from the limit switch 19, and at the same time the guide 8 retreats, compressed air is supplied to the opening 7a of the cylinder 7. Air is supplied to piston 6
The rotating body 5 is lowered by the action of. As the piston 6 descends, the cylinder 10 also descends, the limit switch 11 is pressed at the lower limit, and it is detected that the rotating body 5 etc. are at the lower limit. When the lifted plate material runs out and the lift device 2 descends, and the next plate material arrives by the conveyor, compressed air is supplied to the cylinder device 15 and the guide 8 moves forward. In this way, the above-described operations are repeated.

The opening 7b of the cylinder 7 is provided to adjust the downward force applied to the piston 6 in relation to the force of the piston 9 so that the rotating body 5 can press the upper peripheral surface of the plate 1. . That is, the downward force applied to the rotating body 5 is adjusted by adjusting the pressure of the compressed air supplied from the openings 7a and 7b.

Since the present invention has the above-described configuration, it is possible to handle even welded plate materials that are slightly uneven.

[Brief explanation of drawings]

Fig. 1 is a top view and a sectional view showing the plate material, Fig. 2 is an explanatory view, Fig. 3 is a vertical sectional view, Fig. 4 is a view taken in the direction of the arrow in Fig. 3, 1 is a plate material, 2 is a lift device, 3 Presser foot device, 4
is a vacuum cup, 5 is a rotating body, 6 is a piston, 7 is a cylinder, 8 is a guide, 9 is a piston,
10 is a cylinder, 11 is a limit switch, 12
is a frame, 13 is a threaded rod, 14 is a guide rod, 15 is a cylinder device, 16 is a conveyor, 17
is the pin, 18 is the fuselage, 19 is the limit switch,
20 is a magnetic floater.

Claims (1)

[Scope of Claims] 1. A plate material made by butt-welding two plate pieces at the center is loaded onto a conveyor, carried to a plate material take-out stage, and is pushed up by a lifter and taken out one by one from the top. In the material supply device for supplying the material to the transfer press, there is a guide 8 which is provided to move forward and backward toward the plate materials stacked on the frame on the outer periphery of the plate material extraction stage and guides the side surface of the plate materials; A cylinder 7 having a piston that moves up and down with compressed air; A rotating body 5 whose center portion is pivotally connected to the upper end of the piston rod of the cylinder 7, and whose tip protrudes above the plate from the front surface of the guide 8; A cylinder 10 is fixed upwardly to a piston rod of the cylinder 10, and is movable up and down and pushes up the rear end of the rotating body 5 with its piston that is biased upward.
Then, the piston of the cylinder 10, which is provided downward on the frame near the outer periphery of the plate material that has been pushed up to a certain height by a lifter, and which rises following the rotating body 5 that engages with the plate material and rises, is raised to a certain height. A board pressing device characterized by comprising: a pin 17 for pressing down;