Development of a front and rear aligning control winding system

For winding systems, aligning control is important to assure good winding quality. This research proposes a winding control system with a front aligning mechanism and a rear aligning roller to achieve good front and rear lateral alignment of winding strips. The front aligning mechanism uses one set of a servo motor and a ball screw to tilt a front aligning roller about the hinge located at the midpoint of the roller. The rear aligning roller is actuated by two sets of servo motors and ball screws at its both ends to tilt for rear aligning control. The mathematical models for the front and rear aligning control winding systems are derived and the corresponding controllers are then designed. Both of simulation and experimental results demonstrate that the proposed aligning control winding system could achieve good front and rear aligning control.