A new method for forming plastic products

Abstract

The invention relates to a novel plastic product forming method which is suitable for a plastic product with a simple structure, for instance, the method can be used for reprocessing linear materials such as rectangular or round tubular products. The traditional technology is generally characterized in that a mold is fixed on a mold plate, a heating (cooling) system connected into one body is designed at the periphery of a cavity inside the mold generally, and thus, the whole structure of the mold looks like bulky. According to the novel plastic product forming method, the integrated design of the cavity part of the mold and the heating (cooling) system is changed to be independent systems, that is, the mold is movable relative to the heating system and the cooling system, the mold can be separated from the heating system and the cooling system in a plastic product forming process, the heating system and the cooling system are independent mutually in structure, and the mold heating and the mold cooing can be carried out on different systems, therefore, the heating and cooling efficiency is high, an original water channel part for heating (cooling) the cavity is prevented from being heated and cooled repeatedly, the efficiency is improved, the energy consumption is reduced and the product quality is improved.

Description

technical field [0001] The invention belongs to a brand-new and efficient thermoplastic molding method. It is suitable for plastic products with simple structures, such as reprocessing of linear materials (such as rectangular or round pipes). Background technique [0002] At present, some plastic reprocessing technology adopts the form of traditional injection molding, that is, the molten plastic is extruded into the cavity of the preheated mold through high pressure, and the plastic products to be processed are generally placed in the cavity in advance. The molten plastic and the plastic product to be processed are fused under a certain temperature and pressure, and then cooled and demoulded to obtain the product. Then preheating, cooling, and continuous production in a cycle. The general feature of the mold design of this plastic molding technology is that the mold is fixed on the steel formwork, and generally inside the mold, that is, around the cavity, there are water ...

AI Technical Summary

Problems solved by technology

Obviously, for the injection mold of this structure, the processing and manufacturing costs are high, and in the process of heating and cooling, we have to repeatedly heat and cool the part outside the cavity, including the water channel and the part other than the water channel, and even the template used to fix the mold

This brings the following disadvantages: first, the temperature control accuracy is reduced, and the thermal drift is obvious, which is not conducive to the quality control of the product; second, the efficiency is low, and energy consumption and time are wasted

3. Mold manufacturing is difficult and costly

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