JP3562209B2 - Insert molding mechanism - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an insert molding mechanism that uses various resin materials to prevent damage to an insert body by a slide core and detects an abnormality in the insert body.
[0002]
[Prior art]
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 incorporating an insert body such as a terminal, a frame, a plate, a shaft, or a heat sink.
[0003]
In the molding step, the movable slide core has caused deformation or damage to the insert body.
[0004]
For this reason, there has been a restriction such as an increase in the size of the molded article after completion. Further, the detection of deformation or damage of the insert body has been carried out by taking out the molded product from the molding die and visually inspecting it at another inspection location, using a gauge, or recognizing an image.
[0005]
[Problems to be solved by the invention]
However, in the above-mentioned conventional method, in order to prevent the deformation and damage of the insert body, a great restriction is imposed on the shape of the molded product after completion, and the deformation and damage of the insert body generated in the mold are reduced. There was a problem that it could not be detected.
[0006]
The present invention is intended to solve the above-mentioned conventional problems, and there is no limitation on the shape of a molded product after completion, without causing deformation or damage to the insert, and abnormalities of the insert in the molding die. The purpose is to submit an insert molding mechanism that detects
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, an insert molding mechanism according to the present invention comprises an upper die movable vertically, a lower die facing the upper die, and a slide core that abuts on and adheres to the upper die and the lower die. With this configuration, the slide core is installed movably in the horizontal direction and the vertical direction, and a position detection sensor that detects the slide core that moves in the vertical direction is provided on the upper side of both sides of the lower die. Can be opened and closed and pressed without contacting the insert body without sliding, and if the insert body is deformed or damaged, stop the slide core at a position other than the proper position. The abnormality can be detected.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
According to the first aspect of the present invention, in order to mold including an insert body, the upper mold fixed to the upper mold holder and the upper mold movable in the vertical direction are fixed to the lower mold holder via the lower mold plate opposed thereto. The lower die, a vertically movable mounting angle attached to the first cylinder, and the one or more second cylinders mounted at the end of the mounting angle and horizontally movable. This is an insert molding mechanism constituted by a slide core that abuts and adheres to the upper mold and the lower mold, and has an effect that the slide core can be opened and closed and pressed apart from the insert body.
[0009]
According to a second aspect of the present invention, there is provided the insert molding mechanism according to the first aspect, wherein a position detection sensor for detecting the slide core and controlling the movement of the slide core is disposed at an upper portion on both side surfaces of the lower die. This has the effect that it can be used as a signal for detecting abnormality of the insert body and controlling the movement of the slide core.
[0010]
Hereinafter, embodiments of the present invention will be described 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.
[0011]
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.
[0012]
Reference numeral 5 denotes a lower mold made of a metal material such as a super steel material opposed to the upper mold, and is provided on an upper surface of a lower mold plate 9 made of a metal material or a ceramic material fixed to an upper surface of a lower mold holder 10 made of a metal material or the like. It is fixed.
[0013]
Reference numerals 2 and 2a denote slide cores made of a metal material such as a super-steel material, which are fixed to the tips of the second cylinders 3 and 3a each made of an air cylinder or the like, can be moved horizontally by driving thereof, and The tip is arranged such that the tip and the tip of the slide core 2a are in contact with each other.
[0014]
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 the lower mold holder 10 is fixed, and the mounting angle 11 is vertically movable, ie, the slide cores 2 and 2a are set and arranged to be vertically movable. It is.
[0015]
Reference numerals 6, 6a denote optical, electric or mechanical position detection sensors which are mounted on the upper sides of the lower mold 5 to detect the position of the slide cores 2, 2a and to control the vertical movement thereof. Used as a sensor.
[0016]
Reference numeral 4 denotes an insert made of a metal material such as a connection or fixing terminal, a frame, a plate, a shaft, or a heat radiating plate, which forms a molded product formed by the upper mold 1 and the lower mold 5.
[0017]
Next, the operation will be described with reference to FIGS.
FIG. 1 shows a set position in which the upper die 1 has been separated from the lower die 5 and has been opened, and the positions of the slide cores 2 and 2a have been set in a state in which the distal end has been separated and opened, and further away from the upper surface of the insert body 4. Is shown.
[0018]
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 closed.
[0019]
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.
[0020]
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 2 a, so as to contact the upper surface of the lower mold 5 and the insert body 4. Press down.
[0021]
At this time, if the slide cores 2 and 2a do not reach the regular 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, abnormalities of the insert body 4 are detected by the position detection sensors 6 and 6a. Is detected, the driving of the first cylinder 7 is stopped, and the lowering of the slide cores 2 and 2a is also stopped.
[0022]
Then, if there is no abnormality in the insert body 4 or the like, as shown in FIG. 4, after the slide cores 2 and 2a are lowered, the upper mold 1 is lowered to a regular position where it comes into contact with and adheres to the lower mold 5, and then the molding resin is formed. Is injected to perform a predetermined molding.
[0023]
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.
[0024]
In addition, although two slide cores are used, one or three or more slide cores can be similarly configured and operated.
[0025]
【The invention's effect】
As described above, the insert molding mechanism of the present invention is not restricted by the shape of the molded product after completion, prevents deformation and damage of the insert body, and can detect abnormality of the insert body before the molding die closes. Thus, there is an effect that damage to the molding die can be prevented.
[Brief description of the drawings]
1 is a cross-sectional front view of a main part of an insert molding mechanism according to an embodiment of the present invention; FIG. 2 is a cross-sectional front view of a main part explaining the same operation; FIG. 4 Cross-sectional front view of essential parts for explaining the operation [Description of reference numerals]
Reference Signs List 1 Upper die 2, 2a Slide core 3, 3a Second cylinder 4 Insert body 5 Lower die 6, 6a Position detection sensor 7 First cylinder 8 Upper die holder 9 Lower die plate 10 Lower die holder 11 Mounting angle

Claims (2)

In order to mold including the insert body, it is attached to the first cylinder, and the upper and lower movable upper die fixed to the upper die holder, the lower die fixed to the lower die holder via the lower die plate facing it A vertically movable movable mounting angle, and a slide core mounted on one or a plurality of second cylinders installed at the end of the mounting angle and movable horizontally and in contact with the upper and lower dies. Insert molding mechanism composed of: 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 arranged on the upper part of both sides of the lower die.

Images