Method for controlling e.g. stretching bending straightening machine for machining cold-rolled metal strip in cold rolling mill, involves supplying input variables to controller, transmitting output signals to actuators of machines

摘要

The method involves comparing a target flatness value with a value based on a flatness value of a strip leaving a stretching bending straightening machine or a form closure bending machine. A target transverse-curve value is compared with a value based on a transverse-bow stretch value of the strip leaving the straightening machine or the bending machine. Input variables are supplied to a controller, which generates multiple controller output signals based on the input variables. The output signals are transmitted to actuators of the straightening machine or the bending machine. The controller is designed as an integrated multi-size controller with an internal model control (IMC) structure.