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Flexible switching control method and device for injection molding machine

A control method and injection molding machine technology, which is applied in the field of injection molding machines, can solve the problems of low injection molding precision of injection molding machines, achieve smooth switching, and improve the effect of injection molding accuracy

Active Publication Date: 2021-06-08
HANGZHOU DIANZI UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides a flexible switching control method and device for an injection molding machine to solve the problem of low injection molding accuracy of the injection molding machine caused by the unstable switching when the injection process is switched to the pressure holding process in the prior art

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  • Flexible switching control method and device for injection molding machine

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Embodiment Construction

[0041] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0042] Injection molding is one of the most important polymer molding methods, and the high molecular weight processed annually accounts for more than one-third of the total weight. Injection molding machine is a machine that realizes injection molding. It includes two parts: mold and injection molding machinery. Injection molding machinery can be div...

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Abstract

The invention provides a flexible switching control method and device for an injection molding machine. The method comprises the following steps: acquiring a pressure measurement value of the injection molding machine, a pressure set value of the injection molding machine and a speed measurement value of the injection molding machine; determining a pressure target value of the injection molding machine according to the pressure measurement value of the injection molding machine and the pressure set value of the injection molding machine; obtaining a speed target value of the injection molding machine according to the pressure target value of the injection molding machine, the pressure measurement value of the injection molding machine and the speed measurement value of the injection molding machine; and controlling operation of the injection molding machine according to the speed target value of the injection molding machine. Compared with the prior art, when the injection process of the injection molding machine is switched to the pressure maintaining process, slow change of the speed of the injection molding machine is controlled by controlling the variable quantity of the pressure, so that stable switching from the injection process to the pressure maintaining process of the injection molding machine is realized, and the injection molding precision of the injection molding machine is improved.

Description

technical field [0001] The invention relates to the field of injection molding machines, in particular to a flexible switching control method and device for injection molding machines. Background technique [0002] Injection molding is one of the most important polymer molding methods, and the high molecular weight processed annually accounts for more than one-third of the total weight. Injection molding machine is a machine that realizes injection molding. It includes two parts: mold and injection molding machinery. Injection molding machinery can be divided into mold clamping mechanism, injection mechanism, hydraulic system and control system. A typical injection molding process includes: mold closing, injection, pressure holding, pre-molding and cooling, mold opening and ejection. Injection molding first uses the barrel and screw to heat the polymer raw material to a molten state, and then injects it into a closed mold cavity through the injection screw, and forms the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/76B29C45/77
CPCB29C45/76B29C45/77B29C2045/776
Inventor 邬惠峰孙丹枫赵建勇李绍钻周宏伟
Owner HANGZHOU DIANZI UNIV
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