摘要
胶料温度稳定性对低压注塑工艺产品质量有重要的影响,提出一种基于模糊PID算法改进的温度控制策略,此方法可进一步提高现有低压注塑设备生产运行时的温度稳定控制精度。首先对系统数学模型及参数动态设定思想进行了研究,然后设计了本研究所用的硬件测试电路及软件测试及控制算法。最后通过温度控制实验表明,设计的温度控制系统在不同环境下均可通过自动调节相关温度控制参数,实现各执行单元系统温度±0.5℃的控制精度指标。
Temperature stability has an important influence on the quality of Low Pressure Injection process .A fuzzy PID algorithm is proposed to improve the temperature control strategy .This method can further improve the control precision of the existing low pressure injection molding equipment .This paper introduces the mathematical model and system dy-namic parameter setting idea ,also describes the testing circuit and the softw are algorithm used in this study .Finally ,the temperature control experiment show s that the temperature control system designed in this paper can automatically adjust the relevant parameters in different environments ,and achieve the accuracy index of ＆#177; 0 .5℃ .
出处
《国外电子测量技术》
2017年第10期123-127,共5页
Foreign Electronic Measurement Technology
关键词
低压注塑
模糊PID
温度控制
low pressure injection
fuzzy PID
temperature control
