Control System Research Of Copper Automatic Length Flying Saw

At present,most of copper products extruded by continous extrusion machine,such as wire,copper flat wire,copper pipe and others are all curled by Take-up machine. People usually cut copper products into short length by hand. This measure is very slow and inefficicent.nowadasy, science and technology have great progress, hand sawing can not meet requirements.So, author apply to TLJ630 extusion production line design a flying saw control system,that adopt to advanced servo control technology .This kind of flying saw can saw any cross-section shape of copper fast and accurately.This paper analysis flying saw's vehicles movement in details, and then point out a new, advanced and reliable control method, which including the Mitsubishi PLC,servo controller and motor.PLC is the core part of control system, and the servo controller and motor are the drivers. The whole vehicle motion control schematics, flowcharts and some key parameters'calculation are discussed.Hardware of control system is also introduced in detail.Especailly, the calculation and check of servo motor power is very clearly. The communication between PC and PLC using VB software and MELsoft in serial communication. The serial communication protocol format, MSComm of VB, Access database,ODBC data sources and acquisition data storage are all introduced. By the communication between PLC and PC, the math model of the whole flying saw control system has been established by experiment. This way of establish math model is very easy and simple, that can supply some reliable data for simulink. Fuzzy PID controller's basic principle and design method has been described, and then analysis and forecast the flying saw control system's performance by the simulink. Moreover, vehicle's velocity and displacement test experiments are completed.The simulation results and experimental test data are all fully indicate that this flying saw control system's performance has achieve the scheduled objective, so that make sawing vehicle position control and speed control achieve the production requirements.