A attemperation system of highlight weld mark-free plastic mould

Abstract

The invention provides a temperature control system for a high-gloss plastic mould without melted marks; the system comprises a temperature controller, a heating boiler, a cooling tower, a water tank, an air compressor and a control unit; the temperature controller is provided with a steam pipeline, a cooled water pipeline, a compressed air pipeline, a mixer, a module inlet pipeline and a module outlet pipeline; the heating boiler, the cooling tower and the air compressor are all connected with the temperature controller by pipelines; the module inlet pipeline and the module outlet pipeline in the temperature controller are connected with a module, in which temperature sensors are arranged; each temperature controller and each control valve are connected with the control unit by communications cables. The invention can heat or cool plastic modules according to each phase of the injection cycle, thereby having high control precision of the module temperature and wide heating and cooling scope of modules; the system can be used for getting plastic products with high-gloss surfaces, good performance and low production cost, but without melted marks, flow marks, and spraying processing.

Description

technical field [0001] The invention relates to a temperature control system suitable for manufacturing injection molding molds with high smoothness, no melting marks, no flow marks and high surface strength plastic parts. It belongs to the injection molding field of the material processing discipline. Background technique [0002] As one of the important molding methods in plastic processing, injection molding is widely used in various fields of industrial production. With the increasingly wide application of plastic products, people have higher and higher requirements for the precision, surface quality and strength of plastic products. However, for some defects in the injection molding process, such as: welding marks, flow marks, flow lines, plastic products The appearance quality is poor, and the current injection molding process cannot solve it. In the actual production process, the surface quality and surface strength of plastic products are mainly improved by plastic...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the deficiencies in the existing injection molding technology, such as inaccurate mold temperature control, mismatch between each process in the injection cycle and the mold temperature, and inability to alternately heat and cool the mold according to the injection cycle, and provides a method that can be used according to the injection cycle. The plastic mold is heated and cooled at each stage, the mold temperature is controlled with high precision, and the mold heating and cooling range is large. The high-gloss non-melting plastic mold temperature control system can use this system to obtain high surface brightness, no melting marks, no flow marks, Plastic products that do not require spraying, good product performance, and low production costs

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