基于无隔板过滤机芯生产的恒张力控制研究  

Constant tension control of No Spacer filter core production

作　　者：孙岚[1] 李洪群[1] 陈雪峰 

机构地区：[1]苏州工业职业技术学院电子与通信工程系,苏州215104 [2]苏州新马净化科技有限公司,苏州215153

出　　处：《现代制造工程》2016年第5期130-133,共4页Modern Manufacturing Engineering

基　　金：江苏省高等职业院校高级访问工程师计划资助项目(2014FG079);苏州市科技发展计划基金项目(SYG201258)

摘　　要：研究无隔板过滤机芯生产的开环恒张力控制,对生产过程中的张力变化进行分析,提出了控制函数的线性工程拟合与小半径时的非线性补偿,采用了自适应料卷纠偏直径计算及纸厚修正的方法,并通过PLC浮点数计算得到控制函数的值,再由数/模转换模块的输出控制激励电流模拟量的大小。激励电流控制磁粉制动器产生的制动转距,从而达到恒张力控制。在加减速过程中,采用前馈式动态电流补偿。实践证明,这种方法适应性强,能达到良好的控制效果。这种控制方法与策略,具有成本低,纸厚的自适应提高了易操作性,张力控制精度高,具有良好的应用前景。An open-loop tension control system of non-spacer-filter-core is studied. With analyzing tension variations in the production process, a linear engineering fitting of the control function and a nonlinear compensation in small radius are proposed. By using the adaptive correction reel diameter calculation and correction method of paper thickness, the analog value of the excitation current can be output by D/A module with the control functions calculated through the PLC floating point number. Thus ,the con- stant tension control is realized with the help of braking torque, which generated by excitation current controlled magnetic brake. Feed-forward dynamic current compensation is used in the process of acceleration and deceleration. Practices indicate that this method is adaptable to achieve good control effect. With the advantages of low cost, easy maneuverability and high precision of tension control, this control strategy method shows good prospects in future applications.

关 键 词：恒张力 磁粉制动器 高效过滤器 激磁电流 曲线拟合 电流补偿 

分 类 号：TP278[自动化与计算机技术—检测技术与自动化装置]