JPH05192725A - Work unloader for press - Google Patents

Abstract

PURPOSE:To provide a work unloader for press which can carry away a specified number of laminated works efficiently and can detect defectives easily. CONSTITUTION:A supporting member 12 is provided rotatably on the lower part of a forming part 1, a clamp hook 13 is provided on its lower end and a receiving part 14 is provided on the upper end. The supporting member 12 is arranged at the supporting position and the works 7 after they are punched are supported in a laminated state on the clamp hook 13. The supporting member 12 are connected with a solenoid 17 through a link 18 and a compression spring 19. When a specified number of works 7 are supported on the supporting member 12, the solenoid 17 is excited to rotate the supporting member 12 to an open position. The work 7 is received by the receiving part 14 at the open position. A side wall body 26 and a slide plate 27 are provided below the supporting member 12 to form an ejecting path 28 extending in the horizontal direction. An air cylinder 30 is driven as it interlocks the solenoid to eject the work 7 through a pressure plate 31 in the laminated state along the ejecting path 28.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for taking out a work punched out from a molding part of a press, and more specifically, to automatically take out a plurality of thin plate-like works punched by a die in a laminated state. The present invention relates to a configured work take-out device.

[0002]

2. Description of the Related Art Conventionally, for example, a work take-out device as shown in FIG. 4 has been used in a press machine for punching a laminated plate constituting a core of a motor or the like. An upper die 2 and a lower die 3 are installed in a forming unit 1 of a press machine, and a strip steel 6 is continuously punched by an upper blade 4 and a lower blade 5 attached to these, and a stratified plate, that is, a work 7 is circular. It is formed into a thin plate. The work take-out device is provided with a tubular chute 41 extending from the lower side of the forming unit 1 to the outside of the press, and a large number of paddings 42 for balancing the weight are accommodated inside the chute 41.

The work 7 punched out in the molding section 1
Fall into the chute 41 and are sequentially stacked on the filling 42. The worker pushes the filler 42 extruded by the weight of the work 7.
After removing all the fillings 42 from the short 41, the works 7 are taken out and packed in a predetermined number. At this time, since there is a deviation in the width direction depending on the punching location of the strip steel 6, as shown in FIG. Package on top of the other.

[0004]

However, according to the conventional work take-out device, since the work 7 is carried out by the chute 41, the setup time until the start of punching, the waiting time from punching to packing, and the work 7 It takes a long time to change the setup when changing the type, and besides,
When packing, it is necessary to count and arrange the number of the works 7, and there is a problem that the overall work efficiency is significantly reduced. In addition, since the work 7 is hidden by the tubular chute 41 for a long time, it is difficult to detect a defective molding at an early stage, resulting in a large amount of defective products.

The present invention has been made in view of the above conventional problems, and an object thereof is to provide a work taking-out device of a press machine capable of improving work efficiency and enabling early detection of defective products. ..

[0006]

In order to solve the above-mentioned problems, the work take-out device of the first invention is provided with a position for supporting the works in a stacked state and a position which is provided in the lower part of the molding part of the press machine. A support member that moves to a release position, a drive mechanism that moves the support member to a release position and then returns to the support position when a predetermined number of works are supported on the support member, and a horizontal direction below the support member. And a unloading mechanism that unloads the work dropped on the guide member along the unloading path in conjunction with the drive mechanism.

In the second invention, the supporting member is provided with a latching claw for latching the work at the supporting position and a receiving portion for receiving the work at the releasing position.

[0008]

In the work take-out device of the first aspect of the present invention, the works punched out from the forming section are sequentially laminated on the support member. When a predetermined number of works are supported on the support member, the drive mechanism moves the support member to the release position, and the works fall onto the guide member. The carry-out mechanism is operated in conjunction with the drive mechanism, and the works on the guide member are carried out in a substantially horizontal direction along the carry-out passage in a stacked state.

Therefore, the work can be carried out within a short time after the molding, the setup change can be dealt with promptly, the number of sheets need not be counted, and the overall work efficiency is remarkably improved. Since the workpieces are unloaded in a substantially horizontal direction, it is not necessary to cover the unloading passage, and defective products can be found early.

Further, according to the second aspect of the present invention, by providing the support member with the latching claw and the receiving portion, the work can be received by the receiving portion even when the supporting member is arranged at the release position, and during this period. Since it is not necessary to stop the punching operation inside, the molding efficiency is further improved.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, in the pressing machine of this embodiment, the strip steel 6 is continuously punched by the upper blade 4 and the lower blade 5 of the forming unit 1 to form the core laminated plate, that is, the work 7 as a circular thin plate. Shaped into a shape. The lower die 3 is provided with a cavity 8 into which the punched work 7 falls, and a pair of left and right cutouts 9 are formed so as to open in the cavity 8.
Are formed. A shaft 1 is provided in each notch 9 through a holder 10.
1, the support member 12 is attached, and the support member 12 rotates between the position where the work 7 is supported in the stacked state on the lower side of the forming unit 1 and the position where the work 7 is released as shown in FIG. It is like this. The lower end of the support member 12 is provided with a latching claw 13 that latches the work 7 at the support position, and the upper end is provided with a receiving portion 14 that receives the work 7 at the release position.

As shown in FIGS. 1 and 2, the lower mold 3 is provided with a pair of drive mechanisms 16 for driving each support member 12 to the support position and the release position. Each drive mechanism 16 is similarly composed of a solenoid 17, a link 18, a compression spring 19 and the like. The solenoid 17 is installed on the outer surface of the lower mold 3 via a bracket 20. Link 18
The outer end of is attached to the plunger 17a of the solenoid 17, and the inner end is attached to the hinge 21 of the support member 12, respectively.
The compression spring 19 is fitted into the link 18 via a pair of washers 22 and biases the support member 12 toward the support position with its base end positioned in the spring bearing 23 fixed to the lower mold 3. ing.

The drive mechanism 16 is arranged so that when the predetermined number of works 7 are supported on the support member 12, the solenoid 1
When the solenoid 17 is demagnetized, the support member 12 is returned to the support position by the spring force of the compression spring 19 while the support member 12 is rotated to the release position via the link 18 by the excitation of 7. Has been done.

As shown in FIGS. 1 and 3, a guide member 25 for guiding the work 7 dropped from the support member 12 to the outside is provided below the lower mold 3. The guide member 25 is composed of a pair of side wall bodies 26 arranged at intervals slightly wider than the diameter of the work 7, and a slide plate 27 laid on the bottom of each side wall body 26. On the upper surface of the sliding plate 27,
In order to reduce the sliding resistance of the work 7, a plurality of grooves 27
a is engraved so as to extend in the longitudinal direction. And
A unloading passage 28 extending horizontally is formed below the support member 12 by the guide member 25.

The guide member 25 carries out a work-out mechanism 29 for carrying out the work 7 dropped on the slide plate 27 along the carry-out passage 28.
Is provided. The carry-out mechanism 29 includes an air cylinder 30 and a pressing plate 31. The air cylinder 30 is attached to the end surface of the side wall body 26 via a mounting plate 32,
A pressing plate 31 is coupled to the tip of the rod 30a. The air cylinder 30 is operated in conjunction with the drive mechanism 16, and when the rod 30a is projected, the work 7 is carried out laterally from the cavity 8 of the lower mold 3 by the pressing plate 31.

Next, the operation of the work take-out device constructed as described above will be described. As shown in FIG. 1, the work 7 continuously punched out by the molding unit 1 drops in the cavity 8 and is sequentially stacked on the latching claws 13 of the support member 12. Predetermined number of sheets required to make one core (for example, 50 sheets)
When the work 7 is supported on the support member 12, the solenoid 17 is excited via a controller (none of which is shown) based on a signal from a counter provided in the press.
As a result, as shown in FIG. 2, the support member 12 is rotated to the release position, and the work 7 falls on the slide plate 27.
At this time, the receiving portion 14 of the supporting member 12 is projected inward of the hollow portion 8 and the work 7 punched next is supported thereon.

When a predetermined time (for example, 5 seconds) elapses after the solenoid 17 is excited, the controller causes the air cylinder 30 to project, and the pressing plate 31 causes the work 7 on the sliding plate 27 to be stacked and carried out. 28
Is discharged in the horizontal direction. When the protruding end position of the rod 30a is detected by a sensor (not shown), the air cylinder 30 is retracted and the pressing plate 31 is returned to the standby position. Then, when the retracted end position of the rod 30a is detected by a sensor (not shown), the solenoid 17 is demagnetized, and the supporting member 12 is returned to the supporting position and rotated by the urging force of the compression spring 19. At this time, several works 7 supported by the receiving portion 14 fall onto the hooks 13, and in this state, the works 7 are continuously stacked on the support member 12.

Therefore, by repeating the series of operations described above, the work 7 is automatically carried out of the press machine within a short time after punching. Since the work take-out device of this embodiment has a function of automatically counting the number of works 7, the labor of the worker can be saved and a counting error can be prevented. In addition, when there is a deviation in the thickness of the work 7, if the counter is set to half the number of cores, the work 7 can be easily packed in the form shown in FIG. Moreover, the carry-out passage 28 can be significantly shortened as compared with the conventional one, and the setup change can be dealt with promptly. As a result, the work efficiency of the entire punching process is significantly improved.

Further, since the work 7 is carried out horizontally in an orderly manner by the carry-out mechanism 29, it is not necessary to cover the carry-out passage 28, and a defective product can be found early and the cause thereof can be promptly removed. Further, since the support member 12 is provided with the hook 13 and the receiving portion 14, the work 7 can be received by the receiving portion 14 even when the supporting member 12 is arranged in the release position, and during this period. Since it is not necessary to stop the punching operation, the molding efficiency can be further improved.

The present invention is not limited to the above-described embodiment. For example, a cylinder may be used instead of the solenoid 17, a belt conveyor may be used instead of the air cylinder 30, and various types other than the stratified plate may be used. The shape and configuration of each part may be appropriately changed and embodied within a range not departing from the gist of the present invention, such as punching of a work, application to a press for bending or squeezing.

[0021]

As described in detail above, according to the first aspect of the present invention, the work can be carried out within a short time after molding, the change of setup can be promptly dealt with, and it is not necessary to count the number of sheets. The overall work efficiency is remarkably improved, and the work is carried out in a substantially horizontal direction in an orderly manner, so that a defective product can be detected early.

According to the second aspect of the invention, it is not necessary to stop the driving operation during the period when the support member is arranged at the release position, and it is possible to further improve the molding efficiency.

[Brief description of drawings]

FIG. 1 is a sectional view of a work take-out device showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing an enlarged main part of the apparatus of FIG. 1 in different operating states.

FIG. 3 is a partial cross-sectional view taken along the line AA of FIG.

FIG. 4 is a cross-sectional view showing a conventional work take-out device.

FIG. 5 is an explanatory diagram showing a packing form of works.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Molding part, 7 ... Work, 12 ... Support member, 13 ... Latching claw, 14 ... Receiving part, 16 ... Drive mechanism, 25 ... Guide member,
28 ... carry-out passage, 29 ... carry-out mechanism.

Claims (2)

[Claims] 1. A support member, which is provided at a lower portion of a molding unit of a press machine, and which moves to a position for supporting the work in a laminated state and a position for releasing the work, and a predetermined number of works supported on the support member Drive mechanism that moves the support member to the release position and then returns to the support position, a guide member that forms a unloading passage that extends in a substantially horizontal direction below the support member, and a work that falls on the guide member is linked to the drive mechanism. A work unloading device for a press machine, comprising: a unloading mechanism for unloading along a unloading passage. 2. The work take-out device for a press machine according to claim 1, wherein the support member includes a latching claw for latching the work at the support position and a receiving portion for receiving the work at the release position.