JPS642458B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention sandwiches a press, arranges first and second feed conveyors, and attaches a front positioning tool and a rear positioning tool to the press die.
DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a press device (hereinafter referred to as the device) that can press the front and rear ends of a workpiece efficiently and accurately will be described below with reference to the drawings.

In the figure, an apparatus 1 includes a press 2, a first feed conveyor 3 and a second feed conveyor 4 arranged on both sides of the press 2, and a press die 6 with front positioning tools 7, 7 and a rear positioner. In this embodiment, the press die 6 has a groove 12 extending in the conveying direction of the first and second conveyors 3 and 4 and having chamfered portions 11 at both ends. It consists of a lower mold 13 provided and an upper mold 15 for pushing a work W made of, for example, a channel-shaped material into the groove 12, and by the pushing, a narrow portion 16 illustrated in FIG. 4 is formed at one end of the work W. Can be formed and drawn. The narrow width portion 16 can form a joint portion that intersects at right angles by fitting into the groove portion of the other frame member W.

The first and second feed conveyors 3 and 4 are connected to the frame material 1
A rotating roller 20 such as a motor pulley is installed between 7 and 17.
a..., 20b... are arranged side by side in multiple stages, and the projecting piece 19 at the end of the frame member 17
A hanging shaft 21 provided on the lower frame 23 is inserted loosely into the lower frame 23 with a spring 22 inserted, so that the first and second feed conveyors 3, 4 move the workpiece W from its raised position above the lower die 14 to the lower frame 23. , from the push-down rod 26 at the tip of the support arm 25 extending from the ram 24 of the press 2.
As the overhanging piece 19 is lowered, the overhanging piece 19 is pushed down and can sink to a position where the workpiece W can be dropped to the bottom surface 12a of the groove portion 12. Note that the rollers 20a of the first feed conveyor 3 can rotate in the direction of feeding the workpiece W toward the press 2, while the rollers 20b of the second feed conveyor 4 can rotate in forward and reverse directions to move the workpieces W from the first feed conveyor 3 to the press 2. The workpiece W can be received and the rear end b of the workpiece W can be sent back toward the press 2 again.
Also, the first and second feed conveyors 3 and 4 have L-shaped frames 2.
A pinch roller 30 is attached to a horizontal piece of the L-shaped frame 29, and presses the workpiece W between the rollers 20a and 20b by lowering the pinch roller 30.

A plurality of front positioning tools 7 . . . rear positioning tools 9 are attached to the press mold 6 at different positions in the conveyance direction and in a staggered manner. The front positioning tool 7 and the rear positioning tool 9 are cylinders 32 that are attached horizontally to a support piece raised by a mounting plate 31 fixed to the side surface of the press mold 6, with the rod orthogonal to the conveying direction and facing the groove 12. and connected to the rod of the cylinder 32,
It consists of a positioning piece 33 in the form of a long piece long enough to cross the groove 12, and when the cylinder 32 extends, the workpiece W is moved across the groove 12 to its front surface c and rear surface d.
You can position it with Note that 34 in the figure is an ejection pin provided on the bottom surface 12a of the groove portion 12.

However, in the apparatus 1 of the present invention, as illustrated in FIG.
3 and the front end a of the workpiece W come into contact with each other, and after retracting the front positioning tool 7, the upper die 15 is lowered.
The distance l regulated by the front end 6a of the
The narrow portion 16 having a length corresponding to
4, the workpiece is transferred onto the second feed conveyor 4, and then the workpiece is reversely conveyed, and as illustrated in FIG.
Similarly, a narrow portion 16 corresponding to the length positioned at the rear end b can be formed.

As described above, the apparatus of the present invention is provided with the first and second feed conveyors sandwiching the press, and the press mold is provided with a front positioning tool and a rear positioning tool for respectively positioning the front and rear ends of the workpiece. As a result, press processing can be performed efficiently on both ends of the workpiece, and the equipment can be easily operated automatically.
Improve productivity of press processing of workpieces. In addition, since the first and second feed conveyors can sink, even when the lower die is provided with a groove for drawing, for example, it is possible to push the workpiece into the groove. It can be suitably used. Moreover, the sinking occurs as the upper mold lowers, and the first
Since this is done by providing the press with a push-down lever that pushes down the second feed conveyor, the structure for the sinking operation can be simplified. The device of the present invention can be used in a press that performs various processing such as drilling and bending in addition to drawing, and can also be used as a front positioning tool,
By arranging multiple rear positioning tools side by side, the length of press processing applied to the front and rear ends of the workpiece can be adjusted in various ways by selecting them, and it is also possible to process a wide variety of products. Improve equipment productivity by eliminating setup losses. Furthermore, by forming the front and rear surfaces of the front positioning tool and the rear positioning tool in parallel, the front positioning tool and the rear positioning tool can be
The rear positioning tools can also be shared with each other. Furthermore, the device of the present invention can be modified in various ways, such as using a screw-type linear interlocker instead of a cylinder as a positioning tool.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing one embodiment of the present invention;
3 are diagrams showing the operation thereof, and FIG. 4 is a perspective view illustrating a workpiece processed by the apparatus of the present invention. 2...Press, 3...First feed conveyor, 4...Second feed conveyor, 6...Press mold, 7...Front positioning tool, 9...Rear positioning tool, W...Workpiece, a...Front end, b...Rear end .

Claims (1)

[Claims] 1. On both sides of the press, there are first seats that can carry the work into the press and can freely sink downward from the conveyance surface.
A second feed conveyor that can receive workpieces from the first feed conveyor, send the workpieces backward, and freely sink downward from the conveyance surface is disposed. A front positioning tool that can move forward and backward to position the front end of the workpiece sent by the conveyor, and a rear positioning tool that can move back and forth to position the rear end of the workpiece that is sent back from the second feeding conveyor are attached to the press. . A press device comprising a push-down lever that pushes down and sinks the first and second feed conveyors as the upper die descends.