Injection molding machine mold with built-in steel skeleton

Abstract

The invention relates to the technical field of plastic molds, in particular to an injection molding machine mold with a built-in steel skeleton. The injection molding machine mold with the built-in steel skeleton comprises a top plate, wherein the top plate is connected with a support rod, a first-stage push rod and a second-stage push rod; the support rod is connected with a fixed mold; the fixed mold is connected with a main injection pipe; a movable groove and a cavity are arranged in the fixed mold; the steel skeleton is arranged in the cavity; the first-stage push rod is connected with an upper side plate; the second-stage push rod is connected with an upper movable plate; and an inner cavity is formed in the upper movable plate. Before injection molding, the steel skeleton is firstly placed on a lower side plate and a lower movable plate, a main push rod, a third-stage push rod and a fourth-stage push rod are started to push a movable mold upwards, a closed cavity is formed between the movable mold and a fixed mold, and the steel skeleton is fixed between the lower side plate and the lower movable plate as well as between the upper movable plate and the upper side plate; molten materials are injected into the cavity through a main material injection pipe; and after injection molding is completed, cooling liquid is injected into the device through a cooling liquid pipe, so that a plastic product is primarily formed, and the steel skeleton is fixed into the plastic product.

Description

technical field [0001] The invention relates to the technical field of plastic molds, in particular to an injection molding machine mold with a built-in steel skeleton. Background technique [0002] Plastic molds are tools that are matched with plastic molding machines in the plastic processing industry to give plastic products a complete configuration and precise dimensions. Due to the variety of plastics and processing methods, and the structures of plastic molding machines and plastic products, the types and structures of plastic molds are also varied. A plastic mold is a tool for producing plastic products. It consists of several groups of parts, and this combination has a molding cavity. During injection molding, the mold is clamped on the injection molding machine, the molten plastic is injected into the molding cavity, and cooled and shaped in the cavity, then the upper and lower molds are separated, and the product is ejected from the cavity through the ejector syst...

AI Technical Summary

Problems solved by technology

However, how to position the steel skeleton inside the mold so that after injection molding, the steel skeleton is located inside the plastic product without leaving marks on the surface is a problem that needs to be solved at present, and the plastic product is easily bonded to the inner wall of the cavity after molding , not easy to demould

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