The Method of Improving Precision of Micro Injection Molding Machine Temperature Control

Abstract:

the temperature control accuracy of polymer melt is the main factor affecting quality precision of final products. In this paper, we study the method of improving the precision of temperature control based on control system of micro injection molding machine. In order to avoid big overshoot in the traditional PID control, we use gradual approximation control method based on gradual approximation mathematical algorithm to realize fast and accurate temperature control of the micro injection molding machine. Experiment results show that effective combination of the traditional PID and gradual approximation method can realize accurate temperature control of micro injection molding machine, and precision of temperature control can be improved up to±0.5°C.

• Periodical: Applied Mechanics and Materials (Volume 372)
• Pages: 354-359
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.372.354
• Online since: August 2013
• Authors: Sheng De Tang, Hong Xu, Da Ming Wu, Ya Jun Zhang
• Keywords: Control Accuracy, Gradual Approximation Control, Micro Injection Molding Machine, Temperature Control

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