JPS5935697B2 - Pressed product reversing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a press workpiece reversing device for reversing a press workpiece by 1800 degrees for the next press process.

The press workpiece reversing device is installed between presses in the press secondary processing line.

The suction arm of the press workpiece take-out and supply device takes out the workpiece from the mold of the press and transports it to the press workpiece reversing device, the press workpiece reversing device reverses the workpiece, and the suction arm transfers the workpiece to the next press. However, conventional press workpiece reversing devices are configured to reverse the workpiece in the feed direction centering on one end of the workpiece, so the position of the workpiece changes between before and after reversal. Put it away.
For this reason, the stroke of the suction arm of the pressed product take-off and supply device must be set differently between the press in the previous process and the pressed product reversing device, and between the pressed product reversing device and the press in the subsequent process. In addition, it has been difficult to deal with cases where the dimensions of the workpiece in the feeding direction change or when reversing the workpiece becomes unnecessary. The purpose of the present invention is to make it possible to keep the position of the workpiece unchanged between before and after reversal, to shorten the time required for reversal, and even for workpieces with large dimensions in the workpiece feed direction. It is an object of the present invention to provide a press work product reversing device capable of reversing.

An embodiment of the present invention will be described below with reference to the drawings.

The workpiece 1 is sent from the press in the previous process to the press line 2 in the subsequent process. Base 3 parallel to line 2
is fixed. On both sides of the base 3 are brackets 4, 4' (fixed) having the shape shown in FIGS. 1 and 3.
This fixing position is adjusted along the long grooves 5, 59 depending on the size of the workpiece 1 in the feeding direction. Shafts 6 and 6' are rotatably supported by the brackets 4 and 4', and two workpiece receiving members □ and T' are fixed to each of the shafts 6 and 6'. The workpiece receiving member 7, T' is the workpiece 1 in the workpiece feeding direction at the receiving position.
According to the height of the front and rear ends of the workpiece 1, jigs 8 and 8' are interposed and fixed between the workpiece 1 and the workpiece 1 as shown in FIGS. 2 and 3. Rotary actuators 9, 9' for receiving members that rotationally drive the shafts 6, 6' are attached to the brackets 4, 4'. The rotary actuators 9 and 9' for receiving members are used to place the workpiece receiving members 7 and 7' at either the receiving position shown in FIG. 2 or a lower receiving position outside the reversal trajectory of the workpiece 1. Drive the shafts 6, 6'. An upper base 10 is fixed on the base 3, two bearings 11 and 12 are fixed on the upper base 10, and the bearings 11 and 12 are rotated through bearings 13 and 14 as shown in FIG. A shaft 15 is rotatably supported.

The center of rotation of the reversing shaft 15 coincides with the center 16 of the workpiece 1 perpendicular to the workpiece feed direction. A holder IT is rotatably attached to the tip of the reversing shaft 15 by a pin 18, and rotates between the extended horizontal position and the vertical position of the reversing shaft 15.
A holder jig 19 is attached to the holder IT, and a suction device 21 is attached to the holder jig 19 via a mounting arm 20. As a holding member, a clamp or the like may be used outside the adsorption device 21. Further, the shape of the holder jig 19 and the number of suction devices 21 are changed depending on the size and shape of the workpiece 1. The holder 17 is connected via a link 23 to a connecting rod 22 passing through the reversing shaft 15, and the connecting rod 22 is connected to a piston rod of an air cylinder 24 for driving the holder.

A pinion 25 is fixed to the base end of the reversing shaft 15, and a rack 26 disposed vertically engages with the pinion 25 as shown in FIG.

The rack 26 is connected to the piston rod of the reversing drive air cylinder 2T. 28 is a rack guide.

Next, the operation will be explained.

Before the workpiece 1 is transported, the workpiece receiving members T, T' are in the receiving position shown in FIG. In addition, the holder driving air cylinder 24 operates to move the piston rod 22.
is moved forward, the link 23 is moved to the position shown by the two-dot chain line in FIG.
and moving the adsorber 21 to a vertical position. In this state, the workpiece 1 is carried to the position shown in Figure 1 by the suction arm of the press workpiece take-out and supply device, and is received by the workpiece receiving members T, 7'. Thereafter, the holder driving air cylinder 24 operates to return, and the holder IT) holder jig 19, mounting arm 20, and suction device 21 return to the horizontal position. Thereby, the suction device 21 comes into contact with the plane of the workpiece 1, and the workpiece 1 is held by the operation of the suction device 21. The receiving member rotary actuators 9, 9' operate, and the workpiece receiving members T, 7' rotate in the direction of the arrow in FIG. 2 and move from the receiving position to the non-receiving position. Next, the reversing drive air cylinder 2T operates to raise the rack 26 and rotate the pinion 25 clockwise. The reversing shaft 15 is therefore rotated by 180°. Since the rotation center of the reversing shaft 15 coincides with the center 16 of the workpiece 1 perpendicular to the workpiece feeding direction, the rotation of the reversing shaft 15 causes the holder IT), the holder jig 19, the mounting arm 20, and the suction device 21 to be rotated. At the same time, the workpiece 1 is reversed. After reversing, the rotary actuator 9, 9' for the receiving member
When the workpiece receiving member T, T' returns to the receiving position by the return operation of the workpiece 1, the workpiece 1
receive. In this state, the suction arm of the press workpiece take-out and supply device suctions the workpiece 1 and transports it to the press in the subsequent process. When reversing the next workpiece 1, the suction device 21 holds the workpiece 1 facing upward, and the reversal drive air cylinder 2T operates to return, returning the reversal shaft 15 via the rack 26 and pinion 25. Then, the processed product 1 is reversed.
That is, the two workpieces 1 are reversed by one reciprocating rotation of the reversing shaft 15. Therefore, it is efficient. However, it goes without saying that the workpiece 1 may be reversed only by the forward rotation of the reversing shaft 15. In the present invention, since the workpiece is reversed at the center of the workpiece perpendicular to the workpiece feeding direction, the position of the workpiece can be kept the same before and after reversal.

Moreover, since the reversing operation is one of the 180° rotations of the reversing shaft, the time required for reversing can be shortened.
In addition, since the reversing shaft is arranged perpendicular to the workpiece feed direction, the reversing shaft and the reversing drive can be located at the rear, away from the workpiece feed path, and therefore the workpiece can be A large reversing space can be taken, that is, even workpieces with large dimensions in the workpiece feed direction can be reversed.

[Brief explanation of drawings]

Figure 1 is a plan view of one embodiment of the present invention, Figure 2 is Figure 1A.
- A cross-sectional view taken along line A, Figure 3 is a cross-sectional view taken along line B-B in Figure 1, Figure 4 is a cross-sectional view taken along line C-C in Figure 1, and Figure 5 is a cross-sectional view taken along line D-D in Figure 1. It is a diagram. 1...Processed product, 4, 4'...Bracket, 6,6'...Shaft, T, T'...
Processed product receiving member, 9, 9'...Rotary actuator for receiving member, 15...Reversing shaft, 16...
・Center, 1T...Holder, 21...Adsorption device, 22...Connection rod, 23...Link, 24...Holder drive air cylinder, 25
...Pinion, 26...Rack, 27
・・・・・・Air cylinder for reverse drive.

Claims (1)

[Claims] 1 At the receiving position, the workpiece receiving member receives the front and rear ends of the workpiece in the workpiece feeding direction, and at the non-receiving position, the workpiece receiving member is located outside the reversal trajectory of the workpiece, and the workpiece receiving member is placed in the receiving position or the non-receiving position. a receiving member drive unit for moving; a reversing shaft having a rotation center that coincides with the center of the workpiece perpendicular to the workpiece feeding direction;
A holder attached to the tip of the reversing shaft so that the reversing shaft can rotate between the extended horizontal position and the vertical direction, a holding member fixed to the holder to hold the workpiece, and a reversing member that rotationally drives the reversing shaft. A press work product reversing device that includes a drive section and a holder drive section that rotationally drives a holder.