Anti-static EPP (Expanded Polypropylene) forming process with coating layer

Abstract

The invention discloses an anti-static belt wrapping layer EPP forming process, relates to the technical field of EPP forming processes, and aims to solve the problems that an existing EPP forming process is low in processing efficiency and a formed product is poor in anti-static effect. The forming mechanism comprises an injection molding assembly, an injection molding feeding assembly and an anti-static agent storage box, the injection molding assembly comprises a fixed mold base and a movable mold base, the injection molding feeding assembly comprises an injection molding machine barrel, a liquid adding pump is installed on one side of the anti-static agent storage box, and liquid conveying pipes are installed at the two ends of the liquid adding pump; one end of the liquid conveying pipe is embedded into the anti-static agent storage box, the other end of the liquid conveying pipe is embedded into the injection molding machine barrel, the fixed mold base comprises a plurality of fixed molds, the movable mold base comprises a plurality of movable molds, an EPP forming cavity is formed between the fixed molds and the movable molds, a plurality of material distributing pipes are installed at one end of the fixed mold base, and the material distributing pipes are connected with the injection molding machine barrel. And one end of the material distributing pipe is embedded into the fixed mold, and the other end of the material distributing pipe is provided with a main material pipe.

Description

technical field [0001] The invention relates to the technical field of EPP molding technology, in particular to the EPP molding technology of an antistatic tape coating layer. Background technique [0002] EPP, that is, expanded polypropylene, is generally black, pink or white granules. EPP is used in product packaging, tableware products, etc. EPP foam products have light specific gravity, good elasticity, shock resistance and compression resistance, high deformation recovery rate, good absorption performance, acid resistance, alkali resistance, chemical solvent resistance, and can also be non-absorbent and insulating. It is an environmentally friendly foam that can be recycled with little loss of performance. EPP materials are also widely used in the automotive field because of their good anti-seismic and compressive properties. EPP sheets are mainly used as car roofs, lining sound insulation materials for engine compartments, and spare tire hatch covers. EPP foam part...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an EPP molding process for the antistatic tape coating layer, so as to solve the problems that the existing EPP molding process proposed in the above background technology has low processing efficiency and poor antistatic effect of the formed product.

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