A kind of screw speed control method for improving plasticizing quality of injection molding machine

A technology of screw speed and injection molding machine, which is applied in the field of setting the screw speed value in the plasticizing process of the injection molding machine, can solve the problems of many times of mold trial and long time for determining process parameters, so as to improve the plasticization quality and improve the melt plasticity. The effect of improving uniformity and reducing material waste

Active Publication Date: 2022-07-19
BEIJING UNIV OF CHEM TECH
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Problems solved by technology

However, in actual production, the diversity of equipment and materials results in a large number of trial molds for specific products and a long time for determining process parameters.

Method used

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  • A kind of screw speed control method for improving plasticizing quality of injection molding machine
  • A kind of screw speed control method for improving plasticizing quality of injection molding machine
  • A kind of screw speed control method for improving plasticizing quality of injection molding machine

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Embodiment Construction

[0020] The present invention is further described below through specific embodiments. The following description is only a part of the embodiments, and any non-creative replacement or modification based on the embodiments of the present invention, other obtained embodiments fall within the protection scope of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] The invention is a screw speed control method for improving the plasticizing quality of an injection molding machine. Wait.

[0022] A screw speed control method for improving the plasticizing quality of an injection molding machine, the implementation process mainly includes the following four steps S1-S4:

[0023] S1: The injection molding machine is powered on and initialized, the injection molding machine controller reads the equipment informati...

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Abstract

The invention discloses a screw speed control method for improving the plasticizing quality of an injection molding machine. Substitute it into the screw speed control function calculation model to obtain the screw speed control scheme of the speed with respect to the real-time screw displacement, and transmit it to the servo control system of the plasticizing motor of the injection molding machine to control the screw speed of the current cycle in real time, so as to realize the melting process. Uniformity of body plasticization quality. The method for controlling the screw rotation speed for improving the plasticizing quality of the injection molding machine of the present invention is beneficial to improve the plasticizing quality of the plastic melt, improve the melt uniformity, and reduce the number of mold trials caused by equipment or material replacement.

Description

technical field [0001] The invention belongs to the field of injection molding, and in particular relates to a method for setting a screw speed value in a plasticizing process of an injection molding machine. Background technique [0002] Plastics have the characteristics of light weight and good chemical stability, and are widely used in various fields. Injection molding is one of the main processing methods of plastics. Nowadays, the precision of plastic products puts forward higher requirements on the injection molding process, and the quality of plasticization is a prerequisite to ensure the accuracy of injection molding products. During the plasticization process, the screw rotates and axially retreats, and the effective length of the screw decreases continuously, resulting in differences in the thermal history and shear history of the materials participating in plasticization at different times, resulting in a decrease in the uniformity of the melt in the metering cham...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/76
CPCB29C45/76B29C2945/76605B29C2945/76665
Inventor 谢鹏程朱金柏赵梓良丁玉梅杨卫民
Owner BEIJING UNIV OF CHEM TECH
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