Automation Control System Design Of Six Roller Reversible Cold Rolling Mill

The steel output increases substantially, the whole process of continuous production, high speed rolling, high precision product quality requirements of supporting high performance automation system. The degree of automation is directly determines the yield and the yield of steel rolling. So cold rolling automation also increase year by year.Based on the power of single frame six roller reversible rolling mill as the background, on the basis of automation control system design, set a speed reference generator, in the mill speed change to the transmission device transmits a uniform speed change of slope, and makes the steering roller and plate shape roller with rolling mill rolling speed, reach the line speed matching. In the coiled tension disturbances, design of steel roll eccentricity compensation, through to the drive system for attaching a torque offset value to the realization of the perturbation point compensation strip tension, eventually weaken disturbance. Application of thickness control of the three control method, Application of thickness control method of three, the steel cold-rolled sheet thickness adjustment, combined with the six roller reversible rolling mill automatic flatness control AFC (Automatic Flatness Control) system in TISCO Cold Rolling Mill for single stand cold rolling mill production in the practical application, the steel cold rolling mill for plate shape control system requirements, in the understanding of plate shape control system design basis, deduced the flatness target curve algorithm, developed steel cold rolling production need basic target control curve and overcome the plate rib wave defects programs. And the strip was unsuccessful and belt breakage accident was analyzed and improved, greatly reduce the accident rate, improve the yield and efficiency of strip steel rolling.The practical application shows that the basic automation system of steel rolling, stable operation, significant control effect, overcome double-rib wave programme to eliminate double-rib wave effect is good, steady state rolling, shape error can be controlled within101.