Combined injection molding device capable of conveniently opening and closing mold based on plastic product

Abstract

The invention relates to the technical field of plastic product injection molding, in particular to a plastic product-based combined injection molding device facilitating mold opening and closing, which comprises a base, and the top of the base is fixedly connected with a support column. According to the combined type injection molding device convenient to open and close the mold based on the plastic product, a lump type gravity piston in the column tank is thrown outwards along the column tank through centrifugal force, the lump type gravity piston compresses the upper area of the column tank, air pressure is reserved through a pneumatic drum membrane which deforms outwards, and when the lump type gravity piston slides outwards, the bottom of the column tank can be pumped into negative pressure; the air valve cover is pulled to compress the clamping spring to deviate and open the air inlet valve, so that air enters the column tank, then the rotating speed is reduced, all the parts return, the lump type gravity piston moving downwards along the column tank compresses the air at the bottom of the column tank, the column air disc is propped open, and external cold air is injected into the semi-closed mold; reciprocating high and low speed switching is carried out through the semi-closed mold, so that reciprocating gas injection can be carried out on the column tank, and the cooling forming speed of a workpiece is increased.

Description

technical field [0001] The invention relates to the technical field of injection molding of plastic products, in particular to an injection molding device based on a combined type for easy opening and closing of molds for plastic products. Background technique [0002] Injection mold is a tool for producing plastic products, and it is also a tool for imparting complete structure and precise dimensions to plastic products. Injection molding is a processing method used in mass production of some complex shapes. The injection molding machine injects high pressure into the mold cavity, and the molded product is obtained after cooling and solidification. [0003] The existing patent (publication number: CN108145917B) discloses a combined mold for injection molding, including a mounting base, the top left and right sides of the mounting base are fixedly connected with uprights by bolts, and the upper ends of the uprights on the right side are inserted horizontally. A right half s...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a combined injection molding device based on plastic products that is easy to open and close the mold, so as to solve the problem in the background technology that the workpiece after preliminary molding can only be cooled naturally, the molding efficiency is low, and the workpiece is easily embedded in the mold after molding. In the mold, manual stripping is required, which is easy to cause damage. There are burrs and nozzle edges on the surface of the workpiece, and the problem of poor refinishing efficiency

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