Ultra-high speed injection molding machine with cooling nozzle

Abstract

The invention discloses an ultra-high speed injection molding machine with a cooling nozzle. The injection muzzle of the ultra-high speed injection molding machine mainly comprises an inner cooling part, an outer circulating part and a temperature compensation part. A connection manner of the injection nozzle is the same as that of a conventional nozzle, that is, the tail end of the nozzle is connected with the position of a machine cylinder at the front end of an injection threaded rod through threads. The inner cooling part of the injection nozzle of the ultra-high speed injection molding machine is mainly composed of a nozzle head, a nozzle shell, a front sealing ring, a heat insulation inner cylinder, a rear sealing ring, a heat insulation outer cylinder, a seal ring, an injection spray pipe plated with graphene, a liquid nitrogen chamber, a vacuum cavity, a vacuum valve and the like. The outer circulating part of the injection nozzle of the ultra-high speed injection molding machine mainly comprises a liquid nitrogen circulating pipeline, an outlet one-way valve, a circulating compression pump, a low-temperature refrigerator, a flow adjusting valve, an inlet one-way valve andthe like. The temperature compensation part of the ultra-high speed injection molding machine mainly comprises a temperature compensation cylinder, a heating rod, a high-precision temperature sensor and the like. By means of the ultra-high speed injection molding machine, high-temperature ultra-high speed injection molding melt at the position of the nozzle is effectively cooled, and the situationthat the materials at the position of the nozzle are scorched and are overheated to be decomposed is prevented.

Description

technical field [0001] The invention relates to an ultra-high-speed injection molding machine with a cooling nozzle, which belongs to the field of injection molding machinery. Background technique [0002] For a long time, with the continuous development of the manufacturing industry, plastic products have been widely used in all walks of life, and injection molding, as the main molding method of plastic products, has always occupied an important position. Therefore, injection molding machines have been continuously developed in the entire field of plastic processing. Generally speaking, the injection molding machine is mainly divided into injection, mold clamping, hydraulic, electrical and other components. The plastic raw material enters through the feeding port, and after being heated and melted by the plasticizing system, the material is pushed into the mold by the screw, and after a period of cooling, the pressure is maintained. Finally, the mold is opened to complete ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide an ultra-high-speed injection molding machine with a cooling nozzle to solve the problem of overheating, scorching and decomposition of the material at the nozzle caused by the excessive injection speed of the existing ultra-high-speed injection molding machine, reduce the temperature of the injection molding melt, and obtain high Quality ultra-high speed injection molded products

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