JPH10296736A - Insert molding mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form an insert molding mechanism having no limitation on the configurations of a molded item, preventing the deformation or marring of an insert body, and detecting the abnormality of the insert body within the mold. SOLUTION: The mechanism is formed such that an insert body 4 is molded with resin or the like by an upper mold 1 fastened on the upper mold holder 8 and movable upward and downward, a lower mold holder 10 being opposed thereto, an lower mold 5 secured to the lower mold plate 9, second cylinders 3, 3a attached to the U-shaped attachment angle 11, and slide cores 2, 2a being slidably installed horizontally and vertically by a first cylinder 7, and each position of the slide cores 2, 2a is detected and controlled by position detecting sensors 6, 6a disposed on the upside at either side surface of the lower mold 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insert molding mechanism that uses various resin materials to prevent damage to an insert by a slide core and detects an abnormality in the insert.

[0002]

2. Description of the Related Art Conventionally, insert molding using a slide core has been performed to form a specially shaped electronic component or the like having a built-in insert such as a terminal, a frame, a plate, a shaft or a heat sink.

[0003] In the molding process, the movable slide core has caused deformation or damage to the insert body.

[0004] For this reason, there have been restrictions such as enlarging the shape of a completed molded product. Further, the detection of deformation or damage of the insert body has been performed by taking out the molded product from the molding die and visually inspecting it at another inspection place, using a gauge, or recognizing an image.

[0005]

However, according to the above-mentioned conventional method, in order to prevent deformation or damage of the insert, a great limitation is imposed on the shape of the molded product after completion, and in the mold, There is a problem that the generated deformation or damage of the insert body cannot be detected.

An object of the present invention is to solve the above-mentioned conventional problems, and there is no limitation on the shape of a completed molded product, no deformation or damage to an insert body, and an insert in a molding die. The purpose is to submit an insert molding mechanism that detects body abnormalities.

[0007]

In order to solve the above-mentioned problems, an insert molding mechanism according to the present invention comprises a vertically movable upper die, a lower die opposed thereto, and an abutment and close contact with the upper die and the lower die. The slide cores are movably set in the horizontal and vertical directions by a plurality of second cylinders, and position detection sensors for detecting the slide cores moving in the vertical direction are arranged on the upper portions of both sides of the lower mold. It is possible to open and close the slide core without pressing and sliding the slide core in contact with the insert body, and to press it.If the insert body is deformed or damaged,
The abnormality can be detected by stopping the slide core at a position other than the regular position.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is characterized in that, in order to form a mold including an insert, an upper mold fixed to an upper mold holder and a lower mold plate opposed to the upper mold are provided. A lower mold fixed to the lower mold holder via
A vertically movable mounting angle attached to the first cylinder; and the upper and lower dies, which are horizontally movable and mounted to one or more second cylinders installed at the ends of the mounting angle. This is an insert molding mechanism constituted by a slide core that abuts and adheres, and has an effect that the slide core can be opened and closed apart from the insert body and pressed.

According to a second aspect of the present invention, a position detection sensor for detecting the slide core and controlling the movement of the slide core is disposed on upper portions of both side surfaces of the lower die.
And has an effect that the signal can be used as a signal for detecting the abnormality of the insert body and controlling the movement of the slide core.

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional front view of a main part of an insert molding mechanism according to an embodiment of the present invention, and FIGS. 2, 3, and 4 are cross-sectional front views of a main part for explaining the same operation.

In FIG. 1, reference numeral 1 denotes an upper die made of a metal material such as a super-steel material. The upper surface of the upper die is fixed to an upper die holder 8 made of a metal material so as to be vertically movable.

Reference numeral 5 denotes a lower die made of a metal material such as a super steel material opposed to the upper die, and a lower die plate 9 made of a metal material or a ceramic material fixed to the upper surface of a lower die holder 10 made of a metal material or the like. Is fixed to the upper surface of.

Reference numerals 2 and 2a denote slide cores made of a metal material such as a super-steel material. The slide cores are fixed to the tips of second cylinders 3 and 3a each made of an air cylinder or the like. The core 2 and the slide core 2a are disposed so that the tip of the slide core 2a is in contact with the tip of the core 2.

Reference numeral 11 denotes a U-shaped mounting angle made of a metal material or the like. The second cylinder 3, 3a is fixed to an inner surface of a vertical portion of the U-shape. , The tip of a first cylinder 7 such as an air cylinder mounted on a lower mold holder 10 is fixed, and the mounting angle 11 is set to be vertically movable, that is, the slide cores 2 and 2a are set to be vertically movable. It is arranged.

Reference numerals 6, 6a denote optical, electric or mechanical position detection sensors which are mounted on the upper sides of both sides of the lower die 5 to detect the positions of the slide cores 2, 2a and control the vertical movement thereof. Used as a detection sensor.

Reference numeral 4 denotes connection and fixing terminals, frames, and the like, which form a molded product formed by the upper mold 1 and the lower mold 5.
It is an insert made of a metal material such as a plate, a shaft or a heat sink.

Next, the operation will be described with reference to FIGS. FIG. 1 shows a set position in which the upper die 1 is detached from the lower die 5 and is opened, and the positions of the slide cores 2 and 2a are set positions in which the tips are detached and opened, and which are separated from the upper surface of the insert body 4. Is shown.

Next, as shown in FIG. 2, the second cylinders 3 and 3a are driven to horizontally move the slide cores 2 and 2a inward each other, and the slide cores 2 and 2a are brought into contact with each other. And close.

At this time, since the slide cores 2 and 2a are separated from the insert 4, the insert 4 is not deformed or damaged by the horizontal movement.

Subsequently, as shown in FIG. 3, the first cylinder 7 is driven to lower the mounting angle 11, that is, the slide cores 2 and 2a, so as to be brought into contact with the upper surface of the lower mold 5 and to be inserted into the insert body 4. Abut and press down.

At this time, if the slide cores 2 and 2a do not reach the proper positions where they come into contact with the upper surface of the lower mold 5 due to abnormalities such as protrusions and deformations of the insert body 4, the position detection sensors 6 and 6a detect the insert body. In addition to detecting the abnormality of No. 4, the drive of the first cylinder 7 is stopped and the lowering of the slide cores 2 and 2a is also stopped.

If there is no abnormality in the insert body 4 or the like, as shown in FIG.
After the upper mold 1 descends to a regular position where the upper mold 1 comes into contact with and adheres to the lower mold 5, a molding resin is injected to perform predetermined molding.

Note that, instead of the air cylinder for driving the slide cores 2 and 2a, an oil cylinder, a drive motor, and a drive using a ball screw may be used.

Further, although two slide cores are used, one or three or more slide cores can be similarly configured and operated.

[0025]

As described above, the insert molding mechanism of the present invention is not restricted by the shape of the molded product after completion, prevents the insert from being deformed or damaged, and allows the molding die to detect abnormalities in the insert. It can be detected before closing, and has the effect of preventing damage to the molding die.

[Brief description of the drawings]

FIG. 1 is a sectional front view of a main part of an insert molding mechanism according to an embodiment of the present invention.

FIG. 2 is a sectional front view of an essential part for explaining the operation.

FIG. 3 is a sectional front view of an essential part for explaining the operation.

FIG. 4 is a sectional front view of an essential part for explaining the operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper mold 2, 2a Slide core 3, 3a 2nd cylinder 4 Insert body 5 Lower mold 6, 6a Position detection sensor 7 1st cylinder 8 Upper mold holder 9 Lower mold plate 10 Lower mold holder 11 Mounting angle

Claims (2)

[Claims] 1. In order to mold including an insert body,
A vertically movable upper die fixed to the upper die holder, a lower die fixed to the lower die holder via a lower die plate facing the upper die, and a vertically movable mounting angle attached to the first cylinder; An insert molding mechanism comprising a slide core attached to one or a plurality of second cylinders installed at the end of the mounting angle and movable horizontally, which comes into contact with and adheres to the upper and lower dies. 2. The insert molding mechanism according to claim 1, wherein a position detection sensor for detecting the slide core and controlling the movement of the slide core is disposed on the upper part of both sides of the lower die.