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Compumotor Division, North America: Home > Support > Applications > Monofilament Winder
Monofilament nylon is produced by an extrusion process that results in an output of filament at a constant rate. The product is wound onto a bobbin by a ballscrew-driven arm, which oscillates back and forth at constant speed. The arm must reverse rapidly at the end of the move. This application provides the required controlled tension and ballscrew speed throughout the process.
Motion Control Requirements:
The prime requirement of the bobbin drive is to provide a controlled tension, which means operating in Torque mode rather than Velocity mode. This requirement leads to the use of a servo operating in Torque mode even though a servo in Velocity mode might be recommended with an overriding torque limit. Therefore, the servo normally operates as a constant-torque drive, but if the filament breaks, the velocity is limited to the programmed value. The traversing arm is usually driven by a smaller servo.
Parker Hannifin Corporation, Compumotor Division,
5500 Business Park Drive, Rohnert Park, CA 94928
707-584-7558 or 800-358-9068
Email: Technical Support
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