JPH08243663A - Device for piling up press-formed products - Google Patents

Abstract

PURPOSE: To lay the press-formed products carried out from a transfer press machine in the condition of piling up. CONSTITUTION: A work receiving table 51 fixedly arranged at the upper part from the carrying surface of a conveyor 30 and supporting the one end part of the press-formed product carried out from the transfer press machine and a work receiving table 52 always positioned at the upper part from the carrying surface of the conveyor 30 and supporting the other end part of the press-formed product carried out from the transfer press machine 10 are provided and the work receiving table 52 is intermittently elevated with a cylinder 53.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press-molded product stacking device for stacking press-molded products discharged from a transfer press machine and placing them on a conveyor.

[0002]

2. Description of the Related Art As shown in FIG. 6, in the prior art, a panel 2 which is a press-formed product carried out from a transfer press machine 1 is conveyed by a conveyor 3 to a terminal worktable 4 where a worker 5 After stacking an appropriate number of panels 2 by another worker, another operator 6 stacks the stacked panels 2 on the pallet 7.

Since the panels 2 are unloaded one after another from the transfer press machine 1 in a short cycle, the operator 5 is obliged to concentrate on the stacking work of the panels 2, and therefore the panels 2 are placed on the pallet 7. It is practically impossible for the worker 5 to handle the loading work.

[0004]

As described above, since the unloading cycle of the panel 2 to the conveyor 3 is short, the operator 5 is forced to make a great deal of effort. In addition, the pallet 7 has a panel 2
It is not desirable from the viewpoint of labor saving that two workers are required to mount the device.

In view of the above situation, an object of the present invention is to provide a stacking apparatus for press-formed products which allows the press-formed products delivered from the transfer press machine to be placed on the conveyor in a stacked state.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a press-molded product stacking device for stacking press-formed products carried out from a transfer press machine and placing them on a conveyor provided behind the transfer press machine. A first work cradle that is fixedly disposed above a conveyor surface and supports one end of a press-molded product carried out from the transfer press machine; and a first workpiece pedestal with respect to a conveyor direction. A second support arranged on the downstream side of the first work support and supporting the other end of the press-formed product carried out from the transfer press machine in a state of being positioned above the transport surface of the conveyor. A work cradle and elevating means for intermittently raising and lowering the second work cradle between a position above the conveyor plane and a position below the conveyor plane. It is characterized in that to obtain.

[0007]

When the second work cradle is located above the convey surface of the conveyer, the press-formed products sequentially delivered from the transfer press machine are the first and second press-formed products.
Stacked on the work cradle. When descending to a position lower than the conveying surface of the second work cradle conveyor, the entire stacked press-formed product is inclined, and the lower surface of the front end of the press-formed product located at the bottom is the conveyor surface. Contact. As a result, the entire stacked press-formed product is dragged in the traveling direction of the conveyor, and when the lower surface of the rear end of the press-formed product located at the bottom is separated from the fixed cradle, the entire press-formed product is stacked. It is placed on the conveyor.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, a transfer press machine 10 includes a vertical three-dimensional motion (clamp, lift,
A pair of feed bars 11 for performing advance, down, unclamp and return) are provided, and the molding material 20 is sequentially transferred to each of the first to fifth stages shown in FIG. The molding material 20 is subjected to predetermined press working by a mold (not shown) provided in the above. In addition, in the first to fifth stages, for example, the processing shown in the parentheses in FIG.

The conveyer 30 arranged on the downstream side of the transfer press machine 10 conveys the press-formed product processed by the press machine 10 to the terminal workbench 40 shown in FIG. It has two conveyor belts 31 parallel to each other along the feed direction of 11.

In the embodiment of the stacking apparatus according to the present invention, the work cradle 5 provided in a manner parallel to each other at the site where the transfer press machine 10 supplies the molded product to the conveyor 20.
1, 52 and a cylinder 53 for raising and lowering the work cradle 52
It has.

The work cradle 51 is horizontally positioned above the conveying surface of the conveyor 30 in such a manner as to traverse the conveyor 30, and is fixed via support rods 54 connected to the left and right ends thereof. Further, the work receiving table 52 is located on the downstream side of the work receiving table 51 with respect to the conveying direction of the conveyor 30, and is located between the respective conveyor belts 31 of the conveyor 30.

FIG. 3 shows a system for controlling the cylinder 53. In the figure, the rotary cam switch 6
0 outputs the operation timing signal of the transfer press machine 10. Further, the work detection sensor 61
Is a limit switch for detecting a press-formed product carried out from the final stage of the transfer press machine 10. For example, as shown in FIG. 5A, the limit switch has been transferred from the fifth stage by the advance motion of the feed bar 11. The press-formed product 20 ',
It is arranged to detect above 52.

The control unit 64 includes a rotary cam switch 6
0 and the output of the work detection sensor 61.
The cylinder control procedure illustrated in FIG. It should be noted that this control procedure is executed starting from the state where the feed bar 11 has completed the return motion.

In this procedure, first, the work stacking number counter 63 shown in FIG. 3 is reset, and the solenoid valve 65 is switched to operate to extend the cylinder 53 (step 100). With the extension of the cylinder 53, the work cradle 52 is lifted to the rising end height H1 shown in FIG. 5A, that is, to a position above the conveying surface of the conveyor 30.

Next, the rotary cam switch 60
It is determined whether the feed bar 11 shown in FIG. 1 has completed the advanced motion or not based on the output of (step 101). Then, the determination result of step 101 is N
In the case of O, the procedure is returned to step 101, and in the case of the determination result being YES, the work detection sensor 6
It is determined whether 1 is turned on (step 102).

Now, as shown by the solid line in FIG.
The press-formed product 20 ′ that has been processed in the final stage (the fifth stage in FIG. 2) of the transfer press machine 10 is transferred to above the work pedestal 51 and the work pedestal 52 by the advance motion of the feed bar 11. If so, in this case, the work detection sensor 61 is turned on and the determination result of step 102 is YES.

In this case, the control unit 64 sends the ON signal of the work detection sensor 61 to the work stacking number counter 63.
To the counter 63 and increment the count value n of the counter 63 by 1 (step 103). Since the counter 63 has been reset in advance in step 100, the count value n becomes 1 by the increment processing.

After the advance motion, the feed bar 11 descends to the position indicated by the broken line in FIG. 4 (a) by the down motion, and then performs the unclamp motion. The press-formed product 20 'held by the fingers 12 is released from the fingers 12 by this unclamp motion and descends, and its one end and the other end are placed on the work pedestal 51 and the work pedestal 52, respectively. To be done. That is, the first press-formed product 20 'is placed on both the bases 51 and 52.

In the next step 104, it is judged whether or not the number of stacked sheets n has reached the preset number K (three sheets in this embodiment), but the current number of stacked sheets n counted by the counter 63 is 1. If so, the procedure returns to step 101.

When the count value n of the counter 63 reaches K (3 sheets) by repeating the procedure of steps 101 to 103, that is, when the determination result of step 102 is YES, based on the output of the rotary cam switch 60. It is determined whether or not the unclamp motion of the feed bar 11 is completed (step 105).

When the end of the unclamping motion is judged, the solenoid valve 65 is switched and operated to retract the cylinder 53 (step 106). As a result, the work receiving base 52 is lowered to the lower end shown in FIG. 5 (b). It descends to the height H2, that is, to a position below the conveying surface of the conveyor 30.

Along with this, the K press-formed products 20 ′ that are horizontally stacked on the pedestals 51 and 52 incline, so that the lower surface of the front end of the press-formed product 20 ′ located at the lowermost portion is the conveyor 30. , And as a result, the entire stacked press-formed product 20 ′ is dragged in the traveling direction of the conveyor 30.

Then, as shown in FIG. 5 (c), when the lower surface of the rear end portion of the press-formed product 20 'located at the lowermost part is separated from the work receiving base 51, the stacked press-formed products 2 are formed.
The entire 0'is placed on the conveying surface of the conveyor 30,
It will be conveyed toward the terminal workbench 40 shown in FIG.

After extending the cylinder 53, the control unit 64 determines whether the feed bar 11 has started the advanced motion based on the output of the rotary cam switch 60 (step 107), and the determination result If YES, the procedure returns to step 100.

After that, the same procedure as described above is repeatedly executed, so that the stacked press-formed products 20 ′ are successively supplied to the terminal workbench 40 by the conveyor 30. The work of stacking the press-formed products 20 'at 40 is unnecessary. Therefore, according to this embodiment, it is possible to eliminate an operator who stacks the press-formed products 20 ', that is, to save labor.

As is clear from the above description, the cylinder 53, the rotary cam switch 60, the work detection sensor 61, the counter 63, the control section 63 and the solenoid valve 65.
Serves as an elevating means for elevating the pedestal 52 each time a prescribed number K of press-formed products 20 'are stacked on the work pedestal 52, that is, an elevating means for intermittently elevating the work pedestal 52. .

In the above embodiment, the press-formed product 2
Although the number of stacked sheets of 0'is managed by the count value of the counter 63, an appropriate sensor for detecting the stacking height of the press-formed products 20 'is provided on the work pedestal 51 or the work pedestal 52. It is also possible to manage the number of stacked sheets.

Further, the press-formed product 2 in the above embodiment
0'is depicted as a flat plate to avoid complication of the drawing, but actually has a partially curved shape. Therefore, the ascending end height H of the work cradle 52 shown in FIG.
No. 1 is not limited to the height of the work pedestal 51, and is appropriately set according to the shape of the press-formed product 20 '.

[0029]

According to the present invention, since the press-formed products carried out from the transfer press machine can be stacked and placed on the conveyor, the work of stacking the press-formed products becomes unnecessary. Therefore, it is possible to eliminate workers who perform stacking work of press-formed products, that is, to save labor.

[Brief description of drawings]

FIG. 1 is a perspective view conceptually showing an embodiment of the present invention.

FIG. 2 is a plan view of the embodiment.

FIG. 3 is a block diagram illustrating a control system of a lifting cylinder.

FIG. 4 is a flowchart illustrating a cylinder control procedure.

FIG. 5 is a conceptual diagram showing the operation of the embodiment.

FIG. 6 is a conceptual diagram showing a mode of stacking work of press-formed products in the related art.

[Explanation of symbols]

 10 Transfer Press Machine 11 Feed Bar 12 Finger 20 Molding Material 20 'Press Molded Product 30 Conveyor 51, 52 Work Stand 53 Cylinder 60 Rotary Cam Switch 61 Work Detection Sensor 63 Work Stack Number Counter 64 Control Unit 65 Solenoid Valve

Claims (1)

[Claims] 1. A conveyor (30) provided with a press-formed product (20 ') carried out from a transfer press machine (10) on the downstream side of the transfer press machine (10).
A stacking device for press-formed products to be stacked and placed on a stack, the press-formed products (20 ') being fixedly disposed above the conveying surface of the conveyor (30) and discharged from the transfer press machine. A first work cradle (51) for supporting the parts, and the conveyor (30), which is arranged downstream of the first work cradle (51) in the transport direction of the conveyor (30). A second work cradle (52) for supporting the other end of the press-formed product (20 ') delivered from the transfer press machine (10) in a state in which it is located above the transport surface of The second work cradle (52) is connected to the conveyor (30).
Elevating means (53, 60, 6) for elevating and lowering intermittently between a position above the conveyance surface and a position below the conveyance surface.
1, 63, 64, 65), and a stacking device for press-formed products.