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
CN112917855AActive Publication Date: 2021-06-08HANGZHOU DIANZI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HANGZHOU DIANZI UNIV
Publication Date
2021-06-08

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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.
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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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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