Mold structure and ejection shaping method

Abstract

A die structure and an injection molding method comprise a mother module, a father module, a heating unit, a heat insulation unit and a guidance unit. The mother module is provided with a mother die kernel and a mother template and the mother die kernel is fixedly arranged at one side of the mother template; the father module corresponds to the mother module and is provided with a father die kernel and a father template and the father die kernel is fixedly arranged at one side of the father template; the father die kernel corresponds to the mother die kernel and forms at least one die cavity. The heating unit is provided with at least one circulation hole which is crossly arranged in the mother die kernel. The heat insulation unit is provided with a plurality of heat spacers which are arranged between the mother die kernel and the mother template. The guidance unit is provided with at least one first pilot hole which is arranged at the father die kernel and is communicated with the die cavity and at least one guide pin which is arranged at the first pilot hole; thereby, the surface depression, warping and combining line of the products are avoided; the glossiness of the exteriors of the products is enhanced so as to further increase the strength, the dimensional accuracy and the commercial value of the products.

Description

technical field [0001] The present invention relates to a mold structure and an injection molding method, in particular to a mold structure and an injection molding method that avoid depressions and joint lines on the product surface by increasing the temperature of the mold and adding high pressure during the molding process. Background technique [0002] Plastic materials have the advantages of low cost, fast production, no rust, light weight, corrosion resistance, etc., so that plastic products can replace iron products and wood products in large quantities and are widely used in human life. The production methods of plastic products generally use mold rapid prototyping for mass production. [0003] Wherein, after the plastic material is heated to a molten state, the plastic material is injected into the mold cavity and cooled to form, so as to obtain the desired product. However, because the mold cavity is made of ferrous metal material, it has the characteristics of fa...

AI Technical Summary

Problems solved by technology

[0005] The surface depression, warping, joint line and poor gloss of the above products will cause dimensional variation of the product, resulting in difficulties in subsequent process assembly, and make the appearance of the product poor, affecting the visual experience of the appearance and making consumers shoppers' willingness to purchase decreases

Moreover, the generation of joint lines will reduce the strength of the product, affect the safety of use, and cause a decline in product quality, affecting the value of the product

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