Tension controlled thread feeding system

摘要

A system, apparatus and method for tension control in a thread feeding system that provides a fast and reliable method for feeding high tack elastomeric thread or fiber from a package to a thread processing system. A drive and tension control apparatus at least one of increments, maintains or decrements the speed of a driven take-off roll when the tension is out of a predetermined range of operation. A tension controller devices measures tension and determines whether the average tension for the moving threads is out-of-range relative to the predetermined tension values for the threads. Alarms and other indicators may also be used to determine the threads are at least one of broken, not moving and out-of-range for tension control.