Die for foaming and method for foaming and composite forming

Abstract

The invention discloses a die for foaming. The die comprises an upper die seat and a lower die seat, wherein a hydraulic rod and a piston rod are arranged between the upper die seat and the lower die seat; a connecting template is arranged below the upper die seat; a die punching head is arranged below the connecting template; the die punching head is connected with an upper die; a hollow elastic material device is arranged at the central part of the die punching head; a material injection hole is formed in the hollow elastic material device; pre-heating cavities are formed in two sides of the upper die; a discharging valve which is matched with the upper die to use is arranged on the bottom end face of the upper die; a supporting frame is arranged on the upper die seat; a lower die which is matched with the supporting frame to use is arranged on the supporting frame; a molding cavity is formed in the lower die; a cold flow channel which is matched with the lower die to use is arranged in the lower die; and a die discharging valve is arranged on the bottom end face of the lower die. By adopting the die disclosed by the invention, quality problems, which are easily caused, of products machined by a foaming and forming die in the prior art are solved, the machining quality and the production efficiency of the products are improved and actual utilization requirements are met.

Description

technical field [0001] The invention relates to a mold for foaming and a foaming composite molding method, and belongs to the technical field of foaming molds and composite molding methods. Background technique [0002] Foam molding molds are plastic foam molds. Foaming mold English: foaming mould. Fill the foaming resin directly into the mold, let it be heated and melted to form a gas-liquid saturated solution, through nucleation, a large number of tiny bubble nuclei are formed, and the nuclei grow to make foam plastic parts . There are three commonly used foaming methods: physical foaming, chemical foaming and mechanical foaming. [0003] There are many types of foam molding molds, but the products produced by foam molding molds in the prior art often have product quality problems (the main reason is that there is internal stress and the products are fragile); in addition, the gloss of the products does not meet the requirements . For this reason, it is necessary to de...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the deficiencies of the prior art, and provides a mold for foaming and a foaming compound molding method, which solves the quality problems that are easy to occur in the production and processing of foaming molding dies in the prior art, and improves the foaming performance. The adaptability of the forming mold improves the processing quality and production efficiency of the product and meets the actual use requirements

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