Rotary Shears Control in Material Processing Lines

Rotary shears are common part of the material processing lines. During the operation, these shears are loaded with impact cutting torque, which is short in time, but reaches high values, which are comparable to motor rated torque. Therefore, it is a technical challenge to ensure the speed stability during the cut. The presented paper deals with the analysis of the rotary shears operation and material cutting process from the control point of view and presents a cutting torque compensation possibility. The designed control structures and compensations are verified by simulation with the simulation results included.