Control of the overlapping of the levelling rollers in a planishing machine for flat products in real time by comparing torque measurement with a reference value from a theoretical model of the planishing operation

摘要

The control of the overlapping of levelling rollers in a planishing machine consists of : (A) measuring at least the overall value of the torques transmitted to the planishing rollers by the motors; (B) determining the actual value of the torques used for planishing the product; (C) comparing the determined value with a reference value of the torque provided by a pre-regulation model; (D) acting on the members regulating the roller overlap to maintain the value of the determined torque at a reference value. An independent claim is also included for a device for regulating the roller overlap by this method comprising a circuit (105) for regulating the speed of the rollers and a circuit (104) for regulating the overlap acting on the position of the rollers.