基于伺服运动控制的无压损送纸控制方法研究  

Research for Control Method of Non-Crushed Feeding Based on Servo Motion Control

作　　者：毕洋基 吴小明 BI Yangji;WU Xiaoming(Guangdong Dongfang Precision Science & Technology Co. ,Ltd. ,Foshan,Guangdong 528225 ,China)

机构地区：[1]广东东方精工科技股份有限公司,广东佛山528225

出　　处：《轻工机械》2018年第6期81-84,95,共5页Light Industry Machinery

摘　　要：针对目前纸箱印刷机送纸机构普遍采用拉纸辊结构,存在破坏纸板强度的缺点,笔者提出了基于取消拉纸辊的无压损送纸机构的控制方法。分析了无压损送纸机构的特点,设计了双机械凸轮结构;根据机械凸轮的结构参数及送纸轮与格栅板凸轮的运动规律计算出各运动轴运动曲线的坐标参数;采用伺服运动器拟合设计出各运动轴最优的电子凸轮运行曲线;设计了该机构基于伺服控制与PLC技术的控制系统,包含上位机控制系统以及现场控制系统。应用结果表明:该控制方法在取消拉纸辊对纸板的拉力情况下,仍能保证甚至提升送纸精度;避免因纸板受挤压而强度降低,最大限度提供纸板传送动力。该方法为解决纸板损伤问题提供了实例。In response to the problem of strength reduced by construction of pull roll that widely used in printing machine,a control method of non-crushed feeding based on the feeding unit without pull roll was proposed.The character of non-crushed feeding mechanism was analyzed.A construction of double mechanical cam was designed.Coordinate parameters of motion curves for each motion axis were calculated according to the structural parameters of the mechanical cam and the motion law of feeding wheel and cam of table plate.The optimal electronic cam curve for each motion axis was designed by fitting in servo motion controller.The control system including HMI-PLC control and on-site servo control based on the technology of servo motion control and PLC was proposed.It shows that this control method can guarantee or even improves the paper feeding accuracy without pull roll,avoiding the paperboard reducing its strength due to extrusion and providing cardboard transmission power to the maximum extent.This method provides an example for solving the damage problem of paperboard.

关 键 词：印刷机械 无压损送纸 双机械凸轮 虚拟主轴 电子凸轮 伺服控制 

分 类 号：TB486[一般工业技术—包装工程]