基于PLC及伺服控制器的自动卷绕控制设计-《郑州大学学报(工学版)》

文章信息/Info

Author(s):: ZHANG Aili; ZHU Tianlong; CAI Wuzhen; 1. Computer & Information Technology Institute, Henan Normal University, Xinxiang 453007, China; 2. Xinxiang Tianlu Corporation，Xinxiang 453007，China

Keywords:: unloading of extruding machine ; fuid and solid interaction; analysis of mechanical characteristic

摘要:: 基于伺服控制器、可编程控制器(PLC)及触摸屏技术,完成了自动卷绕生产过程的硬件设计规划、I/O定义、电气原理图及相关程序等.采用PLC完成送料、夹紧、切断、拉断等工序的自动循环.由PLC程序判断输入设备的状态,给出正确的控制指令,然后通过定位模块输出定位脉冲给伺服驱动器,控制电机运行.采用触摸屏完成生产过程的画面监控、参数设置及指令下达等任务.最终测试结果表明,系统运行可靠,且提高了工作效率.

Abstract:: The dynamics analysis software ANSYS/LS-DYNA is applied to establish the FSl( fuid and solidinteraction ) model of unloading cartridge valve in a huge metal extruding machine in this paper, Through stud-ying algorithm and control state equation of the fuid-solid coupling unit and the simulation analysis of fuid.solid coupling, this paper studied the transient mechanical characteristics of cartridge valve and the impactcharacteristics under the interaction of the valve core in unloading process. The results show that: the stabilityof unloading process is related to the contacting time between valve core and valve set, the oil squeezing timehad better not exceed 0. 01 second, the peak impact force of oil to valve core is 140 KN in a steady unloadingprocess, and the maximum Von Mises stress between valve core and valve set is 456 Mpa.