Injection molding machine pressure-maintaining system and injection molding machine

Abstract

The invention relates to an injection molding machine pressure-maintaining system and an injection molding machine. The injection molding machine comprises a mixing device and the pressure-maintainingsystem arranged on the mixing device, wherein the pressure-maintaining system comprises a detection unit for judging a feeding state of the mixing device, and a pressurizing unit for pressurizing themixing device; and the detection unit is provided with an information processing system for judging whether the feeding is finished or not, and transmitting a pressurizing signal to the pressurizingunit after the feeding is finished. The detection unit is used for detecting whether the feeding is finished or not, and transmitting the signal to the pressurizing unit after the feeding is finished;and the pressurizing unit is used for pressurizing and pressure-maintaining the mixing device. After the feeding is finished, pressurizing and pressure-maintaining have no need to be manually operated but are automatically operated, so that the problem of inaccuracy in judgement of a pressure-maintaining time due to manual operation is solved. During the pressure-maintaining continuing process, aconstant pressure value in the mixing device is realized through the automatic pressure-maintaining system, and the problem of personnel following operation during the pressure-maintaining process issolved.

Description

technical field [0001] The invention relates to the technical field of injection molding equipment, in particular to an injection molding machine pressure maintaining system and an injection molding machine. Background technique [0002] Epoxy resin automatic pressure gel process (APG), as a new process technology, the epoxy products produced have better mechanical properties and electrical properties, and the dimensional accuracy and surface quality of the parts are better than the traditional vacuum casting The process has been greatly improved. The automatic pressure gel process was first developed by Ciba in Switzerland, and it has been widely used in developed countries. [0003] In recent years, with the rapid development of the domestic electrical manufacturing industry, more and more manufacturers have adopted this technology. The key to APG technology is the application process. This process is similar to the thermoplastic injection process. Firstly, various materi...

AI Technical Summary

Problems solved by technology

At present, in the process of APG injection molding, after the raw material is filled, it is generally judged whether it is full by the pressure of the injection pipe, and pressurize the mixing device after filling, and the manual operation method has inaccurate judgment of the timing of pressurization. question

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