Injection molding device

Abstract

The invention discloses an injection molding device. The injection molding device comprises an injection mechanism, a mold assembly, a mold assembly mechanism and a stander, wherein the mold assemblyis arranged in the stander, the mold assembly is provided with a mold cavity, the mold assembly mechanism is connected with the mold assembly and the mold assembly mechanism is used for opening or closing the mold cavity, the injection mechanism is provided with a barrel communicated with the mold cavity, the injection molding device also comprises a heating apparatus for heating the mold assemblyand a cooling apparatus for cooling a material in the mold cavity, both the heating apparatus and the cooling apparatus are arranged in the stander, and the outer side wall of the barrel is providedwith a heating member. The injection molding device has the advantages that the quality of a finished product is better, and the production efficiency is relatively high.

Description

technical field [0001] The invention relates to the technical field of moulds, in particular to injection molding equipment. Background technique [0002] Ultra-high molecular weight polyethylene has many advantages such as excellent wear resistance, high impact strength, excellent anti-adhesion and good chemical stability that ordinary polyethylene does not have, and has been widely used in industry and civilian field. [0003] Since ultra-high molecular weight polyethylene has ultra-high molecular weight (viscosity average molecular weight of more than 1.5 million), the melt viscosity is as high as 108 Pa·s, and the melt index is almost zero, which makes the processing and molding of ultra-high molecular weight polyethylene more difficult. Generally, in the process of processing, the raw materials are usually put into the mold, and then put into the oven together with the mold to heat for several hours, then take out the mold, put it on the press and mold it while cooling...

AI Technical Summary

Problems solved by technology

[0003] Due to the ultra-high molecular weight of ultra-high molecular weight polyethylene (viscosity average molecular weight is more than 1.5 million), the melt viscosity is as high as 108 Pa s, and the melt index is almost zero, which makes the processing and molding of ultra-high molecular weight polyethylene more difficult.

Generally, in the process of processing, the raw materials are usually put into the mold, and then put into the oven together with the mold to heat for several hours, then take out the mold, put it on the press and mold it while cooling, but the above-mentioned processing process has the following aspects Problems: 1. The raw materials are heated unevenly in the mold, and there may be external melting and internal unmelting state, resulting in poor quality of finished products; 2. The processing process is cumbersome and the degree of automation is not high. Generally, a product takes several hours , the production efficiency is low, and the labor intensity of workers is also high; 3. The energy consumption is relatively large

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