A Plastic Injection Molding Equipment That Prevents Overfilling

Abstract

The invention relates to the technical field of injection molding, and discloses a plastic injection molding equipment capable of preventing overfilling, comprising: an injection mold, a connecting pipe is fixedly installed on the upper surface of the injection molding mold, and a discharge port is hinged inside the connecting pipe , the inside of the discharge port is movable to install a movable ball, the upper surface of the movable ball is fixedly installed with a cone block, the upper end of the connecting pipe is fixedly installed with a liquid storage frame, the inside of the liquid storage frame is slidingly connected with a sealing plate, and the upper surface of the sealing plate A plastic rod is fixedly installed on the surface, and a compression spring is elastically connected between the upper surface of the sealing plate and the upper surface of the liquid storage frame. The two sides of the upper end of the plastic rod penetrate and extend to the solid above the liquid storage frame Installed with a plastic inlet. Through the combined use of the discharge port, the movable ball and the cone block, after the injection molding is completed, it is possible to avoid the excess plastic being overcharged and forming agglomerates after air cooling.

Description

technical field [0001] The invention relates to the technical field of injection molding, in particular to a plastic injection molding equipment capable of preventing overfilling. Background technique [0002] Injection molding is a molding method of injection and molding. It is to put the polymer pellets or powder into the barrel of the injection molding machine, and homogenize the materials after heating, compression, shearing, mixing and conveying. And melting, this process is called plasticization, and then apply pressure to the polymer melt with the aid of a plunger or screw to inject it into a closed low-temperature mold cavity, cool and shape, then open the mold and eject the product . [0003] At present, during the filling process of existing molds, the melted plastic is often overfilled. Once overfilled, the excess plastic may be blocked at the filling interface. After cooling by the air, it will It will form a plastic agglomeration, which will affect the aesthet...

AI Technical Summary

Problems solved by technology

[0003] At present, during the filling process of existing molds, the melted plastic is often overfilled. Once overfilled, the excess plastic may be blocked at the filling interface. After cooling by the air, it will It will form a plastic agglomerate, which will affect the aesthetics of the plastic. At the same time, the staff needs to manually remove it later, which wastes more manpower and material resources, increases the operating steps of the staff, and is not conducive to mass production of injection molding.

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