JPS6255934B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a punching device such as a blanking press or a punch press.

BACKGROUND ART Conventionally, in the process of punching out a material (blank) to be a product from a fixed-length plate or steel strip, the material was simply piled up in pieces on a saucer or the like. Therefore, when the material is further processed in the next process, it is necessary to align the orientation of the material. In order to solve these problems, a technology was developed in which a belt conveyor is placed below the processing position of a press machine, and the belt conveyor collects the material on a table placed in front or behind it. ing. However, with this type of technology, the materials that fall onto the belt conveyor are messy and do not necessarily have a constant direction, and the material is not collected on the table in an orderly manner. In the end, manual labor was required to align the orientation of the materials.

This invention was invented in view of the above-mentioned conventional problems, and embodiments will be described in detail below with reference to the drawings.

In the following description, "front" refers to a direction corresponding to the lower side in FIG. 1, and "rear" refers to a direction corresponding to the upper side in FIG. 1. Further, "left and right" refers to a direction corresponding to the left and right direction in FIG. 1, and "up and down" refers to a direction corresponding to the up and down direction in FIG. 2.

First, to explain the overall configuration and operation of the punching device, as is clear from FIG. A device 3 is arranged, and a mold mounting table 7 on which a plurality of mold devices 5a, 5b, . . . are mounted is arranged at the rear position. This mold mounting table 7
Each of the upper mold devices 5a, 5b,... is a mold mounting table 7.
Due to the action of the mold loading/unloading device 9 placed on the rear side,
It is exchanged in and out of the processing position of the press machine 1. At a position below the processing position of the press machine 1, as shown in FIG. A magazine pushing device 15 for pushing empty magazines 11 one after another to the position of the lifting device 13 is disposed at an appropriate position on one side (the front side in this embodiment) of the lifting device 13. Furthermore, the other side position of the magazine pushing device 15 (in this embodiment, the rear side)
An inclined passage 17 is arranged in the magazine 11 for transferring the magazine 11 fully loaded with materials to the next process.

Therefore, in this embodiment, the mold mounting table 7
After a mold device (for example, 5c) appropriately selected from above is transferred and positioned to the processing position of the press machine 1 by the action of the mold loading/unloading device 9, the material positioning device 3 moves the plate material W forward, backward, left and right. At the same time, when the press machine 1 is operated and the die device 5c performs a punching process on the plate material W, the material punched from the plate material W falls downward from the die device 5c and is pressed into the lifting actuator. Materials are stored in the magazine 11 supported by the magazine 13. When the magazine 11 is filled with materials, the magazine 1
1 is transported to the next process along an inclined path.

Now, the details of each part will be explained next.

The press machine 1 has a frame structure with C-shaped side plates 19a and 19b like a general press machine, and the upper part is moved up and down by a suitable drive device (not shown). A ram 21 is attached. The lower position of this ram 21 is the processing position of the press machine 1, and the side plates 19a,
A bed 23 is provided integrally with the bed 19b, and a bolster 25 is mounted on the bed 23. The bed 23 and the bolster 25 are provided with material drop holes 23a and 25a, respectively, for dropping the material punched by the mold device 5c. A mold device 5 is provided on the upper surface of the bolster 25.
A pair of guide plates 27 are attached to guide the mold device 5c in the front and back directions by regulating both the left and right sides of the mold device 5c, and a plurality of positioning pins 29 are installed to position the mold device 5c in the front, rear, right and left directions. Furthermore, an auto-clamp device 31 is mounted on the upper surface of the bolster 25 and is capable of fixing the mold device 5c, which is positioned by contacting a plurality of positioning pins 29, onto the bolster 25. This auto-clamping device 31 is installed in a T-groove (not shown) formed on the upper surface of the bolster 25 so that its position can be adjusted freely, and the clamping mechanism rotates vertically under the action of a small cylinder, thereby clamping the mold. A part of the device 5c is fixed by being pressed against the bolster 25 using a clamp jaw.
Furthermore, left and right scrap cutters 33a and 33b are attached to the upper surface of the bolster 25. The scrap cutters 33a and 33b are for shearing the remaining skeleton portion after punching the material of the plate material W into small pieces of scrap, and are arranged symmetrically on both left and right sides near the rear of the mold device 5c. be. The scraps sheared by the scrap cutters 33a and 33b slide down the inclined chute 35 and are stored in a scrap box 37 disposed on the side of the press machine 1. It is something.

The material positioning device 3 receives the plate material W from an appropriate plate material supply device 39 arranged laterally, and
It is used to move and position the plate material W. The material positioning device 3 is provided with a carriage 45 that can freely reciprocate along a guide rail 43 laid on a base 41 in the front-rear direction, and a work clamp 47 that can freely grip a plate material W is attached to the carriage 45 so that the position can be adjusted in the left-right direction. A carrier 49 is mounted so as to be movable in the left and right direction. The carriage 45 is moved by the action of a servo motor 51 attached to the base 41 and a ball screw mechanism (not shown).
Similarly, the movement is performed by the action of a servo motor 53 mounted on the carriage 45, a ball screw mechanism, etc. Therefore, by appropriately controlling both servo motors 51 and 53,
It is possible to appropriately move and position the plate material W in the front, rear, left and right directions.

Note that the portion of the plate material W moved by the material positioning device 3 that extends laterally from the processing position of the press machine 1 is supported by auxiliary tables 55 arranged on both left and right sides of the press machine 1. Moreover, the remaining scraps held by the material positioning device 3 at the stage when the punching process of the plate material W is completed are appropriately discharged to a suitable scrap discharge device 57 disposed on the side of the auxiliary table 55. It is something that

The mold mounting table 7 is supported on a base 59 placed at the rear of the press machine 1 so as to be able to reciprocate in the left-right direction, and movement in the left-right direction is performed by, for example, a servo motor and a ball screw mechanism ( (Illustrations omitted)
This is done by an appropriate configuration such as.
On the upper surface of the mold mounting table 7, a plurality of mold devices 5a,
Mold guide plates 61 for guiding and positioning the molds 5b, . . . are arranged at appropriate intervals in the left-right direction. As shown in FIG. 3, chain guides 63 having an inverted L-shape or a chain-chill shape in cross section are disposed at substantially the center between the respective mold guide plates 61 so as to face each other. The chain guide 63 restricts the vertical and horizontal movements of the chain 65 and guides it in the front and back direction. The chain 65 constitutes a part of the mold loading/unloading device 9, and is wound around a sprocket 67 which is appropriately rotatably mounted at the rear of the base 59 (the mounted state is not shown). Therefore, the chain 65 is moved rearward by appropriately rotating the sprocket 67 using a suitable motor (not shown).

The chain 65 has a front end long enough to reach the processing position of the press machine 1, and the front end is equipped with an appropriate pin such as a pin provided at the rear of each mold device 5a, 5b,... A removable locking device 71 is attached to the locking portion 69. The locking device 71 is composed of a suitable actuating body such as a rotary actuator, and is provided with an actuating hook member 73 that can be freely engaged and detached from the locking portion 69. Therefore, by locking the operating hook member 73 of the locking device 71 to the locking portion of the mold device and moving the chain 65, the mold device moves from the mold mounting table 7 to the processing position of the press machine 1. It is sent out to the mold mounting table 7 and conversely pulled back from the processing position to the mold mounting table 7.

Incidentally, between the mold mounting table 7 and the processing position of the press machine 1, a mold and a chain guide 75 for guiding the mold device and the chain 65 are arranged. This mold and chain guide 75 are press machine 1
The chain 65 is supported by side plates 19a and 19b, and a chain guide is provided in the guide portion of the chain 65 to restrict vertical and horizontal movements of the chain 65. In addition, in the part that guides the mold equipment,
A mold guide plate is provided.

As shown in FIG. 2, the lifting device 13 is disposed in a pit 77 bored below the processing position of the press machine 1. The elevating actuator 13 is constructed by fitting a hollow magazine support rod 83 with a piston portion at the bottom into a cylinder body 81 that is vertically disposed on a cover plate 79 that covers a pit 77 so as to be movable up and down. ,
A material support rod 85 for supporting a material is fitted into the magazine support rod 83 so as to be vertically movable.
A flange portion 87 integrally provided at the upper end of the magazine support rod 83 has a stopper 89 having an inclined surface at the upper portion to allow the magazine 11 to ride on it.
is biased and protruded by a bullet 91 such as a spring, and a mini-cylinder 95 is mounted at a position opposite to this stopper 89 to move a stopper pin 93 into and out of the upper surface.

When the magazine 11 is placed on the flange portion 87 over the stopper 89 by the action of the magazine push actuator 15 and is positioned by abutting against the stopper pin 93, the elevating actuating device 13 having the above-mentioned structure is operated by the cylinder body. Pressure fluid is supplied into the magazine support rod 81 and the magazine support rod 83, and the magazine support rod 83 and the material support rod 85 are raised. Therefore, the magazine 11 is raised to the position of the material drop hole 23a of the bed 23, as shown in phantom lines in FIG. 2, and the upper end of the material support rod 85 enters the material drop hole 25a of the bolster 25. Thereafter, when the plate material W is punched, the punched material is gradually accumulated on the material support rod 85. The material support rod 85 is gradually lowered according to the amount of material accumulated, and when a certain amount of material is reached, the material support rod 85 enters the magazine support rod 83 and transfers the accumulated material to the magazine 11.
It is intended to be accommodated in When the material is stored in the magazine 11, the magazine support rod 83 is lowered, and then the stopper pin 93 is retracted.
A magazine 11 containing materials is sent out to an inclined passage 17. Next new magazine 11
When the magazine is placed on the magazine support rod 83, the operations described above are repeated. Note that the control to gradually lower the material support rod 85 according to the amount of material accumulated can be controlled by lowering it by a certain amount every cycle of the vertical movement of the ram 21 in the press machine 1, or by using a light projector/receiver. Various types of control can be performed, such as controlling the top position of the collected material to be kept constant.

Note that the magazine 11 has a base plate 9.
Control rods 99 for regulating the directionality of the material are arranged on the base plate 7 at appropriate intervals, and the base plate 97 has a through hole 101 through which the material support rod 85 can freely pass. . Therefore, when the materials collected on the material support rod 85 are stored in the magazine 11, the orientation of the materials is regulated by the regulating rod 99 and is aligned.

The magazine pushing device 15 includes a transfer conveyor 103 that aligns and transfers a plurality of empty magazines 11;
It consists of a pusher cylinder 105 and the like that pushes the magazines 11 on the transfer conveyor 103 one by one to the position of the lifting actuating device 13, and is arranged below the material positioning device 3.

The inclined passage 17 is a magazine 11 full of materials.
In order to slide down smoothly, rollers or balls are appropriately placed on the top surface. A delivery cylinder 107 for delivering the magazine 11 to the next process is arranged at the lower end of the inclined passage 17.

Next, the operation of the above configuration will be explained.

When the chain 65 in the mold loading/unloading device 9 is in the state of being pulled back, the mold mounting table 7 is moved in the left-right direction to select an appropriate mold device 5c. After selecting the mold device 5c, when the mold loading/unloading device 9 is operated to advance the chain 65, the mold device 5c is moved forward.
c is sent out from the mold mounting table 7 to the processing position of the press machine 1, and is positioned by coming into contact with the positioning pin 29 on the bolster 25. After positioning the mold device 5c, the auto-clamp device 31 is activated and is integrally fixed to the bolster 25. On the other hand, in the lifting actuator 13, the magazine support rod 83 is in the state where the magazine 11 is raised, and the material support rod 85 is in the through hole 10 of the magazine 11.
1 and is in a position to collect materials.

In the above state, when the material positioning device 3 moves and positions the plate material W in the front, back, left, and right directions, and the press machine 1 is operated to punch the plate material W using the mold device 5c, the punching occurs. The material is collected on the material support rod 85.
When a certain amount of material is accumulated on the material support rod 85, the material support rod 85 is lowered and the material is stored in the magazine 11 as described above, and the magazine support rod 83 is lowered and the stopper pin 93 is lowered. is immersed. Thereafter, when the empty magazine 11 on the transfer conveyor 103 is pushed out toward the lifting actuating device 13 by the pusher cylinder 105, the magazine 11 containing the material is pushed out onto the inclined passage 17, and the next magazine 11 is moved to the lifting actuating device 13. and is raised to a position for collecting material as described above. Inclined passage 17
The magazine 11 pushed upward slides down to the inclined lower end and is sent out to the next process by the delivery cylinder 107.

As understood from the description of the above embodiments,
In short, the main points of the present invention are as described in the claims.According to the present invention, a material punched by a press machine is stored in a magazine after being collected on a material support rod. It happens.
Therefore, the materials can be prevented from falling into the magazine in an orderly manner, and the materials can be stored in the magazine in an orderly manner. Therefore, the directionality of the material is maintained constant, and when processing the material in the next step, it is only necessary to take out the material from the magazine, and there is no need to align the directionality of the material again.

Further, according to the present invention, the elevating actuator disposed below the processing position of the press machine includes a magazine support rod that can be freely raised and lowered to push the magazine up to a height close to the bed of the press machine,
The magazine support rod is provided with a material support rod that can freely support materials stored in the magazine by passing through a through hole formed in a base plate of the magazine, and is movable up and down on the magazine support rod.

Therefore, the stroke length of the magazine support rod should be sufficient to push the magazine up to a height close to the bed, and the stroke length of the material support rod should be enough to push the magazine up to a height position close to the bed. It is sufficient that the stroke length is such that it can rise to a position sufficient to receive the material dropped from the processing position of the press machine when the magazine support rod is in the raised state.
Therefore, the stroke length of the material support rod is
For example, the magazine support rod is much shorter than in a stationary configuration. That is, according to the present invention, the stroke of the lifting actuating device can be relatively short, the overall size can be reduced, and the depth of the pit for accommodating the lifting actuating device can be shallow.

It should be noted that the present invention is not limited to the above-described embodiments, but can be implemented in other embodiments by making appropriate design changes. For example, if the material is triangular or the like, the magazine can have three regulating rods. Further, the elevating device is not limited to a double-structured cylinder, and various other mechanisms such as a screw mechanism or a link mechanism can be used.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the punching device, FIG. 2 is an enlarged cross-sectional view taken along the line - in FIG. 1, and FIGS.
It is an explanatory view of an arrow view. Explanation of symbols representing main parts of the drawings: 1...Press machine, 13...Elevating/lowering operating device, 11...Magazine, 15...Magazine pushing device, 17...Incline passage,
83...Magazine support rod, 85...Material support rod.

Claims (1)

[Claims] 1. A lifting device is arranged and provided below the processing position of the press machine, and a magazine for pushing a magazine for accumulating materials to the position of the lifting device is placed at an appropriate position on one side of the lifting device. A pushing device is arranged and provided, and an inclined passage for transferring the magazine to the next process is arranged and provided on the other side of the lifting actuating device, and the lifting actuating device is close to the bed of the press machine. The magazine is provided with a magazine support rod that can be raised and lowered to freely push up the magazine to a height position, and a material support rod that can freely support the materials stored in the magazine by passing through a through hole formed in the base plate of the magazine. A punching device characterized by a support rod that can be raised and lowered.