A MECHATRONICS APPROACH TO THE CONTROL OF PICKSPACING

The possibility of weaving fabric with a control system governed by be at-up force with negative take-up and positive beat-up principles is i nvestigated using modern electronics equipment to prevent ''starting p laces'' faults in weaving. The tension control system is integrated wi th that of the beat-up force. Any deviation from the desired beat-up f orce is compensated for by reducing or increasing both the take-up and let-off speeds to adjust the cloth fell position and the tension cont rol is achieved by adjusting the relative speed between the let-off an d take-up. The design parameters and system performance are discussed.