Patent ID: 6161790
Filing Date: 2000-12-19
Classification: B65H

Abstract:
A method of winding a continuously advancing yarn onto a bobbin tube to form a yarn package, with the bobbin tube being coaxially mounted on a winding spindle which is mounted in cantilever fashion on a moveable spindle support, and comprising the steps ofengaging the surface of the package being formed with a contact roll, with the contact roll being mounted for limited movement in a direction away from the package as the package builds,sensing the movement of the contact roll and driving the spindle support at a predetermined deflection speed V.sub.A in response to a sensed movement of the contact roll outside of a predetermined range of movement so as to increase the distance between the contact roll and the package and maintain the positioning of the contact roll within the predetermined range of movement during the build of the package, andwhen the contact roll is within the predetermined range of movement, driving the spindle support at a reversing speed V.sub.U which is lower than the deflection speed V.sub.A and which is lower than or equal to a winding speed V.sub.S which is a function of the rate of the diameter increase of the package wherein the position of the contact roll remains substantially unchanged.