Insert-positioning mechanism of compaction forming die

Abstract

The invention relates to an insert-positioning mechanism of a compaction forming die, comprising an insert and a die body. An insert die core is arranged at the tail end of an insert, and the die body is provided with a corresponding insert die core hole and mutually connected and the inset. The insert-positioning mechanism of the compaction forming die is characterized in that the insert die core is provided with at least one transverse hole in which a bulb plunger piston is assembled, and a bulb of the bulb plunger piston impacts and contacts with the inner wall of the insert die core hole when the insert die core is assembled in the insert die core hole. In the invention, the insert die core is provided with the transverse hole in which the bulb plunger piston is assembled, and when the insert die core is inserted in the insert die core hole, a spring in the bulb plunger piston impacts the bulb so that the bulb contacts with the inner wall of the insert die core hole, and the inset can not fall off from the die body due to friction.

Description

Technical field [0001] The invention belongs to the technical field of mold manufacturing, and particularly relates to a positioning mechanism for a compression molding mold insert. Background technique [0002] Compression mold is to fix the mold on the hydraulic press, and close the upper and lower molds by the closing movement of the hydraulic press. At the same time, the material put into the mold cavity is heated and pressurized to solidify the material to form a plastic product. Hydraulic presses generally move up and down. When there are inserts in plastic products, and the inserts inevitably appear in the upper mold direction of the mold, the installation of the inserts before closing the molded product is more difficult to solve. [0003] When the insert fixed on the insert core is loaded into the mold, it will be affected by gravity and may fall into the mold cavity, causing the mold to be crushed. In the prior art, in order to solve this kind of problem, some places a ...

AI Technical Summary

Problems solved by technology

Hydraulic presses generally move up and down. When there are inserts in plastic products and the inserts inevitably appear in the direction of the upper mold of the mold, it is difficult to install the inserts before the mold is closed.

[0003] The insert fixed on the insert core will be affected by gravity when it is loaded into the mold, and may fall into the mold cavity, causing the mold to be crushed

In the prior art, in order to solve such problems, some magnets are placed on the mold to attract the insert core, but the compression molding mold must be heated to about 130°C-180°C during molding. At high temperature, the magnet tends to lose its magnetism, or the insert falls off due to the vibration of the press, and the safety is very low

In addition, there is a spring piece installed on the insert core, and the insert core is fixed in the insert core hole of the upper mold by elastic force, but its manufacture and use are inconvenient and have great limitations.

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