JPS6289537A - Device for taking out press work - Google Patents

Abstract

PURPOSE:To feed out a work which has adhered to an upper die punch and has ascended, to a fixed position by pushing and dropping it down onto a belt conveyor which has moved forward, by moving forward and backward the belt conveyor between the upper die punch and a low die by making it interlock with an ascent and a descent of a press ram. CONSTITUTION:When a ram 2 comes to a top dead center position B, levers 34 of both sides turn in the front direction, and through an engaging roller 36, a belt conveyor 26 moves forward between an upper punch 4 and a lower die 6. Subsequently, a press work 8 which has been extruded from the upper punch 4 drops down onto the conveyor 26 and fed out in the direction as indicated with an arrow D, moved to a belt conveyor 25 which has been supported fixedly and taken out at a fixed position. Next, when the ram 2 starts to descend, the levers 34 of both sides turn in the rear direction, and the conveyor 26 moves backward through the engaging roller 36, moves to the outside of the upper punch 4 and the lower die 6, and the press working is executed without a hitch by the upper punch 4.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a press-work product take-out device in which a work product processed by a press machine is dropped onto a forward-moving belt conveyor and sent out. Regarding.

[Conventional technology]

FIG. 3 is a side view of a conventional press work product take-out device disclosed in, for example, Japanese Utility Model Application Publication No. 59-18026. In the figure, l is a press machine, and a ram 2 that reciprocates up and down is provided above and a bolster 3 fixed below. 4 is an upper die punch attached to an upper die holder 5 fixed to the ram 2; 6 is a lower die die attached to a lower die holder 7 fixed to the bolster 3;
It corresponds to Reference numeral 8 denotes a press-formed workpiece, which is attached to the upper die and lifted up, and when it reaches the top dead center position B of the ram 2, it is pushed down by the extrusion means. A shooter guide 11O 9 attached to the bolster 3 and arranged at an angle is a shooter that reciprocates on this shooter guide, as shown in a front sectional view in FIG. 4. This shooter 10 has rollers 11 attached to both sides and moves along a shooter guide 9.

The shooter 10 has a pin 1 connected to a pair of levers 12 on both sides of the lower end.
3 and are rotatably connected.

Returning to FIG. 3, the pair of levers 12 are connected to the upper die holder 5I/
c The upper end portion is rotatably connected to a pair of fixed mounting members 14 via a pin 15.

The operation of the conventional device described above is as follows. When the ram 2 is in a standby state at the top dead center position B, a workpiece (not shown) is placed on the lower die 6 and positioned. Subsequently, the ram 2 descends and reaches the bottom dead center position, and the upper punch 4 and lower die 6 press the workpiece. The pressed product 8 rises while being attached to the upper die punch 4, and when it reaches the top dead center, it is pushed down by the extrusion means.

On the other hand, when the ram 2 is lowered, the chute 10, which had been pushed down to the outside of the upper die punch 4 and the lower die 6, is pulled up along the chute guide 9 due to the rise of the ram 2, as shown by the solid line. At the dead center position B, it moves forward between the upper die punch 4 and the lower die 6, as shown by the chain line. In this state, the workpiece 8 is extruded from the upper die punch 4, falls onto the chute 10, and is slid down and taken out.

When the ram 2 is lowered, the shooter 10 is pushed down by the lever 12 and moved outside of the upper die punch 4 and the lower die 6, as shown by the solid line.

[Problem that the invention seeks to solve]

In the conventional press-worked product take-out device as described above, the workpiece slides down the chute lo along the slope, but there is a problem in that the workpiece gets caught in the middle due to the frictional resistance between the two and cannot be taken out. there were.

Furthermore, if the distance between the upper die punch 4 and the lower die 6 at the top dead center position of the ram 2 is narrow, the inclination of the chute 10 cannot be increased, and the pressed product cannot be slid down and taken out. There was a point.

This invention was made to solve these problems, and even if the gap between the upper punch and the lower die at the top dead center of the ram is narrow, the pressed product can be reliably ejected. The objective is to obtain a device for taking out pressed products that is sent out and has high reliability.

[Means for solving problems]

The device for taking out pressed products according to the present invention has a belt conveyor movably supported so as to move forward and backward in the horizontal direction at a height position between the upper punch and the lower die in the raised position, and An interlocking drive means is provided for moving the belt conveyor forward and backward in conjunction with the rise and fall of the belt conveyor, and the belt conveyor that has been moved forward is arranged to enter between the upper die punch and the lower die at the front end side.

[Effect]

In this invention, when the press ram reaches the top dead center and the pressed product is pushed down from the elevated upper die, it is received and sent out onto the movable supported belt conveyor that is moved forward, and when the ram descends, The belt conveyor is moved back to the outside of the upper mold and lower mold by the driving means, and pressing is performed by lowering the upper mold.

〔Example〕

1 and 2 are a side view and a front view of essential parts showing an embodiment of a press-worked product take-out device according to the present invention, and numerals 1 to 8 are the same as the conventional device described above. F and R
1 shows the front and rear of the press l. 21 is press machine 1
It is a board fixed on a pair of support members 22 on both sides, and the support members 22 are attached to the bolster 3. The attachment is fixed to the body 24. 25 is a fixedly supported belt conveyor that is fixed on the board 21 and is electrically driven; 26 is a movable supported belt conveyor that is horizontally reciprocated and electrically driven; A pair of bearings 27 are attached. This conveyor 26 is connected to the raised upper die punch 4 and the lower die 6.
It is placed at an intermediate height.

Reference numeral 28 denotes a pair of guide shafts on both sides, each of which is fixed at both ends to a pair of support stands 29 mounted on the substrate 21.

A pair of bearings 27 are fitted into a guide shaft 28 and are movably received, and support a movably supported belt conveyor 26 so as to be movable in the horizontal direction. Reference numeral 30 indicates four pillars fixed on the board 21, and a pair of mounting plates 31 on both sides are fixed to the upper ends.
A pair of bearing boxes 34 holding the bearing 33 are 1 on both sides.
A support shaft 37 fixedly attached to the upper end of each of the pair of rotating levers is received by a bearing 33 and is rotatably supported. The notch grooves 34a provided at the lower ends of these rotating levers 34 engage with engagement rollers 36 attached to both sides of the belt conveyor 26, respectively. Reference numeral 37 denotes a connecting rod whose both ends are fixed to the rotating levers 34 on both sides, and a rolling element 38 is rotatably fitted in the center. This rolling element consists of a bearing or a roller. 39 is a mounting base attached to the upper mold holder 5 on the ram Z side, 40 is a plate cam attached to this mounting base, and is provided with a guide groove 40a, with which the rolling element 38 is engaged. invite.

The operation of the apparatus of the above embodiment is as follows.

When the ram 2 is at the top dead center position B as shown by the solid line, a workpiece (not shown) is positioned on the lower die 6. When the ram 2 descends to the bottom dead center position C as shown by the chain line, the upper die punch 4 and the lower die 6 and K perform pressing.

The pressed product 8 is lifted up while being attached to the upper die punch 4, and when it reaches the top dead center, it is pushed down by the extrusion means.

On the other hand, when the ram 2 reaches the top dead center position B, the plate cam 40 is also raised, which causes the rolling elements 38 of the connecting rod 37 to move into the guide groove 4.
0a, and the rotating levers 34 on both sides are rotated in the front direction as shown by solid lines.

Then, the belt conveyor 26 is advanced between the upper die punch 4 and the lower die 6 via the holding roller 36.

The pressed product 8 extruded from the upper die punch 4 falls onto the belt conveyor 26 in this state. At this time, the bell 26a of the belt conveyor 26 is traveling in the direction of the arrow, and the pressed product 8 is sent out rearward and transferred onto the fixedly supported belt conveyor 25. The belt 25a of this belt conveyor 25 is traveling in the direction of arrow E, and the pressed product 8 is taken out to a fixed position outside.

Next, when the ram 2 starts descending, the plate cam 4o also descends, and the rolling elements 38 are guided along the guide groove 40a, and the connecting rod 37
The rotating levers 34 on both sides are rotated rearward via the levers 34.

When the ram 2 reaches the bottom dead center, the lever 34 is rotated to the position shown by the chain line, whereby the belt conveyor 26 is retracted via the engagement roller 36 and moved outward from the upper die punch 4 and the lower die 6. will be moved.

In this way, pressing can be performed without any trouble by lowering the upper die punch 4.

As mentioned above, the belt conveyor 26 moves forward and backward in conjunction with the rise and fall of the ram 2, and sends out the pressed product 8 to the east.

In addition, a movably supported belt conveyor 26 is advanced.

The ram 2 is raised as an interlocking drive means for retreating.

Although the cam and lever means linked to the lowering of the ram 2
A fluid pressure cylinder, or a combination of an electric motor and a linear motion exchange mechanism (for example, a ball screw mechanism), etc., which are operated in conjunction with the raising and lowering of the cylinder, may be used.

Further, in order to rotate the rotation lever 34 in conjunction with the rise and fall of the ram 2, in the above embodiment, the guide groove 4 is formed in the plate cam 40.
0 & is provided by a cam means for guiding the rolling element 37, but the rotary lever may also be rotated by a link mechanism connected to the ram 2 side.1 Furthermore, in the above large embodiment, a movably supported belt conveyor is used. Pressed product 8 taken out by 26
is transferred to a fixedly supported belt conveyor 25 and sent to a fixed position, but this belt conveyor 25 may be omitted, a movably supported belt conveyor is extended, and the set is sent to a fixed position. [Effects of the Invention] ] As described above, according to the present invention, a movably supported belt conveyor is disposed at a height between the raised upper punch and the lower die, so that the belt conveyor can be moved forward and backward in the horizontal direction, and the press ram is raised. The belt conveyor is moved forward and backward by an interlocking drive means that is linked to the lowering of the belt conveyor, and the receiver is configured to take out the pressed product that has adhered to the upper die press and has risen and been pushed down onto the advanced belt conveyor. This ensures that the pressed product is taken out to the correct position, and by making the belt conveyor thinner, the pressed product can be taken out without any problem even if the gap between the upper die and the lower die at the top dead center position is narrow. It can be taken out.

[Brief explanation of drawings]

FIGS. 1 and 2 are a partially cutaway side view and a front view of the main parts from the rear, showing an embodiment of a press-worked product take-out device according to the present invention, and FIG. 3 is a conventional press-work product take-out device. A side view of the device, FIG. 4 is a view of the shooter section of FIG. 3 viewed from direction A. l...Press machine, 2 river rams, 3...bolsters, 4.
...Upper die punch, 6...Lower die, 8...Pressed product, 25...Fixed support belt conveyor, 26...
・Movable support belt conveyor, 34... rotating lever,
40...Plate cam 1.40a...Guide groove Note that the same reference numerals in the drawings indicate the same or equivalent parts. Volume 2 Masuo Oiwa Diagram 2

Claims (6)

[Claims] (1) It is disposed at a height between the upper punch and the lower die at the elevated position of the press, and is supported so that it can move forward and backward in the horizontal direction. A belt conveyor with movable support that enters between the die punch and the lower die, attaches to the upper die punch, rises, receives the pressed product pushed down at the top dead center, and sends it out, and a belt conveyor that is used to raise and lower the ram. A press-worked product take-out device comprising an interlocking drive means that moves the belt conveyor forward and backward in an interlocking manner. (2) A fixed-support belt conveyor is installed at the rear of the press machine's bolster at a height below the movable-support belt conveyor to transfer and take out the pressed products from the movable-support belt conveyor. A device for taking out a pressed product according to claim 1. (3) The interlocking drive means is interposed between a plate cam means attached to the ram side and a movably supported belt conveyor, and moves the belt conveyor forward and downward by raising and lowering the plate cam means. A device for taking out a pressed product according to claim 1 or 2, comprising a rotating lever means for retracting the pressed product. (4) The interlocking drive means is interposed between a link means connected to the ram side and a movably supported belt conveyor, and the link means is interposed between the link means and a movably supported belt conveyor. 3. A device for taking out pressed products according to claim 1 or 2, which comprises a rotary lever means for advancing and retracting the conveyor. (5) The press processing according to claim 1 or 2, wherein the interlocking drive means is a hydraulic cylinder that is operated in conjunction with the rise and fall of the ram and moves the movably supported belt conveyor forward and backward. Product removal device. (6) The interlocking drive means is operated in conjunction with the raising and lowering of the ram, and comprises a drive motor and a linear motion converting mechanism, which move the movably supported belt conveyor forward and backward. The device for taking out pressed products according to item 2.