Barrel Temperature Of The Injection Molding Machine Control Design And Research

In 2008, the International Rubber Conferance proposed "Plastic instead of steel" theme.Plastic industry have been developing rapidly, and with its unique material quality encroachment on a large market.The Plastic injection molding machine is the most important plastics processing equipment;precision barrel melt temperature parameter value is important to improve the quality of plastic products, especially in today's precision injection technology to melt temperature for a very high level;Devoted to enhance injection molding machine melt temperature precise control of research work, has a great significance and value.This topic is solved injection molding machine barrel temperature measurement and control. After analyzing the working characteristic of barrel, based on the traditional injection molding machine barrel temperature control system has such as big overshoot and response time long, system unsteady detrimental to melt temperature controlling precision of factors, put forward the control scheme and implementation method.To design a suitable for injection molding machines working characteristics of temperature measurement and control system, and finally achieve the purpose of improving melt temperature precision.This paper uses P89V51RD2 single chip microcomputer as microprocessors, to design njection molding machine barrel temperature control system based on Fuzzy Immune PID control algorithm.Design temperature detection circuit,control and display and other peripheral circuits,.Complete the interference of the function modules, and software programming,using C51 language, in KeilμVision2 environment.Topics also research barrel temperature control algorithm Based on barrel characteristics. Do experiment and simulation to compare the quality of PID, fuzzy control, fuzzy immune PID algorithm.Choose fuzzy immune PID algorithm which is good than other algorithms as barrel temperature control algorithm, Desigen fuzzy immune PID controller based on the P89V51RD2 microcontroller, to improve the accuracy of melt temperature effect.