Study of correspond control in multiple stage constant tension wire drawing machine

Straight,multiple stage wire drawing systerm is cold drawing production equipment for metal wire.Aimming at the particular demands of control,the controlling principle of PID controller with forward-back used in constant tension control of wire drawing machine was presented.Over-shoot was solved commendably by soft-start technology with the boundary error control method.The experimental result shows that the controller obtains excellent control effect with the method.