浇注模定量倾倒机构的分段变脉冲积分化控制  

Piecewise Varying Impulse Integral Control for Casting Mould Quantitative Pouring Device

作　　者：赖永波[1,2] 卢俊 李华荣 LAI Yongbo;LU Jun;LI Huarong(School of Intelligent Engineering,Jiangsu College of Information Technology,Wuxi 214153,Jiangsu,China;Wuxi Presize Intelligent Mould Limited Company,Wuxi 214153,Jiangsu,China;Rongsheng Technical Internet of Things Limited Company,Wuxi 214059,Jiangsu,China)

机构地区：[1]江苏信息职业技术学院智能工程学院,江苏无锡214153 [2]无锡精智模具技术有限公司,江苏无锡214153 [3]荣晟物联技术有限公司,江苏无锡214059

出　　处：《电气传动》2023年第4期91-96,共6页Electric Drive

基　　金：江苏省高校优秀科技创新团队基金(2019SJK07);江苏省高等学校自然科学研究基金(17KJB510019)。

摘　　要：针对小型模具快速定量倾倒浇注生产中的过冲与涌溅问题,对一种自动倾倒熔桶机构在分析其工艺流程和控制特点下,提出将倾倒过程分三阶段控制设计,在不依赖于系统的具体模型条件下,采用可编程序控制器(PLC)的高速脉冲输出功能来实时控制伺服电机推拉倾倒熔桶浇注生产。该定量倾倒浇注控制在快浇注阶段解决了涌溅,在精确浇注阶段设计匀速递减可变脉冲来无限逼近积分控制过程,解决了过冲达到定容量浇注。仿真与实验表明,倒桶浇注中的控制干扰和机构的振颤现象被有效抑制。与传统的熔桶倾倒定量浇注控制应用相比,该设计控制整定参数少、过冲与涌溅量小,且设计更便于采用PLC来编程实现。To deal with the mould quantitative casting over-pouring and spillage,based on the analysis of the technological process and the control characteristics for a kind of auto molten bucket casting mechanism,under the condition without depending on system concrete models,a three stages casting was proposed to real-time control servo motor push-pull molten bucket casting production by the programmable logic controller(PLC)high-speed pulse output function.The control solves the spillage in the fast pouring stage,designs the uniform decreasing variable pulse to infinitely approximate the integral control process to solve the over-pouring and reach the quantitative casting pouring in the precise pouring stage.Simulation and experiment show that the control method effectively attenuate the disturbance and the pouring mechanism vibration phenomenon.Compared with the traditional control application of the molten bucket pouring,the designed control system have few adjusting parameters less over-pouring and spillage,and more convenient to be realized by the PLC.

关 键 词：倾倒机构 自动定量浇注 分段变脉冲 积分化控制 

分 类 号：TM28[一般工业技术—材料科学与工程]