Glass fiber reinforced molded plastic internal thread end cover compression mold

Abstract

A glass fiber reinforced molded plastic internal thread end cover compression mold comprises an upper mold plate, a male mold, a thread mold core, a female mold, a mold sleeve and a lower mold plate. The upper mold plate is fixed on an upper mold frame through upper mold plate fixing screws, the lower mold plate is fixed on a lower mold frame through lower mold plate fixing screws, an inverted-cone-shaped hole is formed in the center of the thread mold core and connected with a center rod through a center rod cone-shaped face, the center rod is fixed on the lower mold plate which is provided with an ejector rod and a cylindrical helix compression spring, the ejector rod is arranged at the bottom of the thread mold core, the cylindrical helix compression spring is arranged at the bottom of the female mold, and a closed cavity of an end cover product is defined by the male mold, the female mold, the thread mold core and the center rod. It is guaranteed that mold opening and exhausting are synchronously conducted in the end cover compression molding process, the problem that exhausting between the bottom face of an end cover inner cavity and the end face of the thread mold is difficult is solved, therefore, compression molding of the molded plastic internal thread end cover product can be achieved rapidly and efficiently, and the advantages of reducing the working intensity of operators and increasing the product yield are achieved.

Description

technical field [0001] The invention relates to a compression mold of a glass fiber reinforced molding compound internal thread end cover. Background technique [0002] SMC glass fiber reinforced molding compound, FX-501 phenolic glass fiber reinforced molding compound and other molding compounds. The inner threaded end cover has the advantages of high specific strength, specific stiffness, corrosion resistance, good sealing performance and product design. , often used at both ends of ammunition packaging barrels or barrel launchers as storage and transportation sealing end caps, especially some sealing end caps must also have the fragility function of satisfying the launcher without opening the cover. The molding compound will produce a large amount of aerosol during the compression molding process of heating and pressurizing. Generally, after several times of loosening the punch to remove most of the aerosol, it can be removed through the movable assembly gap between the p...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a compression mold for an internally threaded end cap of glass fiber reinforced molding plastics, which ensures that the mold opening and exhaust are carried out simultaneously during the compression molding process of the end cap, and solves the problem of exhaustion between the bottom surface of the inner cavity of the end cap and the end surface of the threaded mold. In order to realize the rapid and efficient compression molding of the molded plastic internal thread end cap, it has the characteristics of reducing the work intensity of the operator and improving the qualified rate of the product.

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