基于PLC的卸料小车呼车系统的设计改——基础类审批

Design of Call Control System for Material Cars of Production LineAbstract:while science and technology continue to develop,the economy is alsogrowing rapidly,and the level of industrial production should be improved accordingly,because the level of production is the key to weigh the development of science andtechnology and the ability of industrial development.While a variety of modern equipmenthas been put into use,the operator's work intensity has been significantly reduced,and earlierdifficult and dangerous industrial tasks,now by operators remote control of smart devices tomake it automatic production.During this design,the PLC control system is used for the control system of theproduction line material vehicle pager.The operation of the material vehicle is driven by athree-phase asynchronous motor (one).When the motor moves to the right,the materialvehicle moves to the left.The main control equipment of the material vehicle control programin this design is operated by a FX type programmable controller from Mitsubishi Enterprise.The program command can realize its detailed control requirements.The program design alsouses the auxiliary relay equipment in the PLC to make it interlocked.Operators at theworkbench can use the request button to control the direction of the material vehiclemovement.This control program is suitable for the intelligent control of the material vehicle in theflexible manufacturing program,the intelligent control of the car used to access objects in theintelligent warehouse,etc.It has the advantages of low cost,small area,stable and safecontrol of production,high efficiency,flexible,timely error correction and convenientmanagement.Keywords:material trolley;electric motor drive;programmable logic controller (PLC);call car