| The armor plate side exscind system is the pivotal equipment for the middle plate production factory. The nip-deliver roller system is the hard core in the armor plate side exscind system, so its reliability and veracity is very impotent. The development of technology of the computer and intellectual control can offer a nicer platform for high quality control of the nip and deliver roller system.To begin with, in this paper, we design a systematic control program. By analyzing double-side trimmer system, workflow of double-side trimmer and the characteristics of the process, we design the control system of pinch rolls: According to Shearing process requirements, comparative analysis three Speed curves of send plate, we choose the program of slow down-to speed up. At the same time, aimed at deviation problems of double-side trimmer, we choose the control program of "1:3"and"1:7".In the past, the time of send plate based on the fastest cutting speed - 24 times/minute. At this point, pinch rolls have stopped for a long time, when the speed of main shear is low. Leading to the speed of send plate is too high when main shear speed is not high, impact precision of step. Taking into account this reason, we study on changing the slope of a given step control algorithm to improve precision. As there is large inertia, time-varying parameters characteristics, we design adaptive fuzzy PID step controller.Aimed at deviation problems of double-side trimmer Steel plate process, and pinch rolls is the key, follow-up control system using model reference auto-adaptation based on FNN PID was developed and applied in Transmission System of pinch rolls to ensure that the pinch rollers to keep pace and prevent plate deviation. The experiments show that the present method is available. Follow-up control system using model reference auto-adaptation based on FNN PID is better than Traditional PID controller, when system parameters are time-varying. |