Patent ID: 6014104
Filing Date: 2000-01-11
Classification: B65H

Abstract:
A method for monitoring a tension of a yarn in a yarn manufacturing process to detect an abnormality of the yarn manufacturing process while the yarn spun by a spinning device is wound by a winding device including a traverse mechanism, a spindle for attaching a bobbin thereto, and a contact roller adapted to contact the yarn wound around the bobbin to apply a surface pressure to the yarn, said tension of the yarn being detected by a yarn tension detecting means arranged on the upstream side of the winding device, said method comprising the steps of:detecting a winding condition by a winding condition detecting means;correcting the tension detected by the yarn tension detecting means in correspondence with the rate of change in the winding condition; andjudging whether the yarn manufacturing process is in a normal condition or not with reference to the corrected tension.