JP2011115926A - Side hole press - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To develop a cutting die which machines the punching-out hole or the slit on a side surface of a molded article using the vertical movement of a table driven by a press to move a punch in a lateral direction. <P>SOLUTION: A structure component having a principle for moving horizontally disposed components in a horizontal direction is used as a means for horizontally moving the punch to solve a problem, by horizontally disposing one of the two components that have tilting surfaces and, in that state, pressing and moving the other from a vertical direction while making the tilting surfaces contact with each other. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  This invention is linked to thermoforming, which is called vacuum forming, which is performed by continuously forming a container shape on a sheet-like plastic, making it possible to carry out a punch hole or a cutting process on the side surface of the molded product. The present invention relates to a method for manufacturing a punching die.

  A part of the part embedded in the mold is moved in the direction perpendicular to the drive direction of the press to perform the molding process with the characteristics of the side of the molded product, and the blade mold is also moved vertically to move the side of the molded product. The technology for punching is established in the injection mold and drawing mold industries.

  In vacuum forming, there is no concept of punching the side of the molded product, and the processing follows the drive of the press, and the punch and die of the punching die are vertically engaged and performed only on the flat part of the molded product. It is recognized that the technology has not been established.

  In other words, the present invention has achieved the establishment of a technology that has not been seen in the past, making it possible to perform punching on the side surface of a molded product in a die used in a press linked to molding in the vacuum molding industry. It can be said that there is.

  Development of a punching die that uses the movement of the table that is driven up and down the press to move the punch in the lateral direction to allow punching holes and incisions on the side of the molded product.

Means for solving the problem

  As will be described in detail hereinafter, the present invention uses a technique already established in other industries as means for moving the punch in a direction perpendicular to the drive direction of the press. In the cutting die of this industry that performs die cutting by matching each other from the state where the die is completely separated, the function of the end block has been added to make it possible to accurately match both parts, and the problem has been solved. Is.

  Among the techniques used for injection molding dies, a method using an angular pin as a means for moving the slide core in the lateral direction, and a method using a taper cam as a means for moving the movable punch in the horizontal direction by the drawing die as well. Use.

  More specifically, one of the two parts having the inclined surface is horizontally arranged, and the other part is moved horizontally by pushing the other inclined surface in contact with each other from the vertical direction. The technique based on the principle of moving the punch in the horizontal direction is used as means for moving the punch in the horizontal direction in the punching die.

  In addition to this, by installing an end block between the two parts so that the punch and die are accurately aligned during the drive operation, continuous punching is not affected by the drive accuracy of the press. Made it possible to obtain.

The invention's effect

  Conventionally, when punching on the side of the molded product is required, a product that has been extracted into the final shape is supplied to the single press one by one by hand and processed semi-automatically. This effort and cost are eliminated.

  Embodiments of the present invention will be described in detail below with reference to the drawings.

  As the upper die is lowered, the product guide (2) fits into the molded product (1), and the punch table (3) matches the positions of the punch (4) and the die (10) with an end block (5). ), The punch plate (6) further pushes down the angular pin (8), moves the slide core (9) horizontally, and removes the punch (4) from the product guide (2). And is punched by engaging with the die (10).

  After the processing is finished, the punch plate (6) is pressed against the end block (5) with the punch table (3) against the end block (5) as the upper die is raised. After pulling out from the guide (2) and the slide core (9) repelling the spring (12), the punch (4) is pushed back into the product guide (2), and then the punch table (3) is moved to the punch plate (6 ) Is lifted by the bolt (13) connected to the die (10) to release from the die (10), the molded product (1) is lifted to its original height, and the molded product (1) that has come out of the product guide (2) is removed from the die Sent out.

  The locking block (7) is made so as to counteract the resistance of punching by applying a load to the slide core (9) at the moment of punching and an auxiliary role for moving the slide core (9).

  The molded product is sent to the press at a certain height due to the structure of the machine, and this height is called the sheet level, and it can be adjusted somewhat by peripheral equipment, but if the level is lower than the lower mold, There is a mechanism called a tilt plate that can be adjusted so that the molded product is lifted intermittently and fed into the punching die across the lower die.

  The molded product once lifted by the tilt plate and fed into the punching die first fits into the lower die as the tilt plate returns to its original height, and then the upper product guide fits into the molded product. The sheet level of the present invention is assumed to pass through the hollow position in the punching die that does not interfere with the lower die.

  Also, due to the properties of thermoforming, the molded product is formed by protruding the shape on either the upper or lower surface of the sheet. In this case, the product guide is lowered from the upper surface because it has a shape on the lower surface. In the case where the molded product protrudes from the upper surface, it is necessary to pass through equipment called a reversal line that changes the vertical direction of the molded product in order to use the punching die of the present invention.

FIG. 3 is a state diagram in which a press table is opened and a molded product is fed into a punching die. The upper die is lowered and the product guide is inserted into the molded product. Since the punch table is in a position that cannot be expressed in this drawing, the state where the punch table rides on the end block drawn by a two-dot broken line and stops descending. A state diagram in which the punch plate pushes down the angular pin, the punch protruding from the product guide engages with the die, and the side of the molded product is punched.

1 Molded product 2 Product guide 3 Punch table 4 Punch 5 End block 6 Punch plate 7 Locking block 8 Angular pin 9 Slide core 10 Die 11 Spring 12 Spring 13 Connecting bolt

Claims (1)

  In a die that performs punching on the side of the molded product, an inclined block is used as a means to move the punch attached to the slide core laterally by bringing the inclined angular pin into contact with the inclined surface of the slide core from the vertical direction. This is a punching die linked to thermoforming in vacuum forming, which is made so that the positions of the punch and die match exactly.

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