摘要
分切机是凹版印刷加工中的最重要的工作流程之一;为提高分切机自动控制系统的响应性及稳定性,需要进行分切机自动控制系统设计;但是采用当前方法进行分切机自动控制系统设计时,难以掌控张力控制,存在精准度低、扩展性差的问题;为此,提出一种基于PLC技术的分切机自动控制系统设计方法;运用PLC技术设计出分切机自动控制系统,重点阐述了该系统的硬件构成以及软件的设计思路,介绍伺服驱动机构、回旋切割机构、变频器机构以及触摸屏等系统硬件机构的设定,并完成PLC外部MR-J2S的端子接线图,为使配备电位器旋钮以手动的控制方式来实现分切机的调速,文章采用三菱FR-E540-5.5K-CH型变频器;依据FROM和TO指令确定分切时各轴的扭矩,分析预浸窄带卷绕成形规律,给出分切机复卷轴静态动力方程,得以实现分切机复卷机构预浸窄带复卷的恒张力;实验证明,所提方法控制精确度高,可以为分切机自动控制系统的设计提供科学的依据。
Slitter is one of the most important processes in gravure printing.In order to improve the response and stability of automatic control system of Slitter,it is necessary to design the automatic control system of slitting machine.However,it is difficult to control the tension control in the design of the automatic control system of the splitting machine with the current method.There are problems of low precision and poor scalability.Therefore,a design method of automatic control system of slitting machine based on PLC technology is proposed.The use of PLC technology to design the cutting machine automatic control system,expounds the system hardware and software design,introduces the servo driving mechanism,cutting mechanism,drive mechanism and cyclotron touch screen hardware mechanism and complete set,terminal wiring diagram PLC external MR-J2 S,is equipped with a potentiometer knob to make speed the manual control mode to realize the cutting machine,this paper adopts MITSUBISHI FR-E540-5.5 K-CH inverter.The axis of the cutting torque is determined based on the FROM and TO instructions,analysis of prepreg narrowband winding forming law given cutter reel static dynamic equations,to achieve constant tension Slitter rewinding mechanism of prepreg band rewinding.Experimental results show that the proposed method has high control accuracy and can provide a scientific basis for the design of automatic control system of slitter.
出处
《计算机测量与控制》
2018年第1期110-114,共5页
Computer Measurement &Control
关键词
分切机
自动控制系统
响应性
slitting machine
automatic control system
responsiveness
