Extrusion-injection molding tool and extrusion-injection molding integrated manufacturing method

Abstract

The invention discloses an extrusion-injection molding tool and an extrusion-injection molding integrated manufacturing method. The extrusion-injection molding tool comprises a pre-forming device, aninjection mold and a dissolving device, the pre-forming device is used for fixing raw materials to a soluble core material to form a pre-formed part, the injection mold carries out mold pressing and injection molding on the pre-formed part to form a semi-finished product, and the dissolving device is suitable for dissolving the soluble core material in the semi-finished product to form a manufactured part. According to the manufactured part manufactured through the extrusion-injection molding tool, the manufactured part can be of a hollow structure so that the extrusion-injection molding toolcan be used for manufacturing various types of manufactured parts, the rigidity of the manufactured parts can be effectively improved, and the weight is reduced. In addition, in the manufacturing process of the manufactured part, the manufactured part is directly laid on the soluble core material, the storage and transportation cost of the prepreg is saved, no secondary heating procedure exists inthe process, and therefore it is guaranteed that the production cost is low.

Description

technical field [0001] The invention relates to the field of general tooling, in particular to an extrusion-injection tooling and a manufacturing method for extrusion-injection integral molding. Background technique [0002] The manufactured parts produced by the compression-injection molding process have the characteristics of both performance and structure. Therefore, the compression-injection molding process is becoming more and more popular. [0003] However, the existing molding-injection molding process usually first presses the continuous raw material into a sheet, then preheats the molded sheet to make it soft, then moves the softened molded sheet into the injection mold, and passes the closed The pressure of the mold makes it pre-shaped, and finally it is injected to obtain the required parts. [0004] There are mainly three defects in the existing compression-injection molding process: [0005] (1) Since the molded part can only be an open structure, the rigidity...

AI Technical Summary

Problems solved by technology

[0005] (1) Since the molded part can only be an open structure, the rigidity of the manufactured part is relatively low;

[0006] (2) Due to the high viscosity of the resin, it is difficult to infiltrate, and the prepreg has high requirements for storage and transportation, resulting in high material costs

[0007] (3) There are problems such as high energy consumption and complicated operation for secondary heating of molded plates

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