METHOD AND DEVICE FOR CONTROLLING THE WAY IN WHICH THREAD UNWINDS FROM A THREAD PACKAGE

摘要

It is the main object of the invention to provide a tensioning method and device which provides consistent and low thread tension between the point of unwinding from a package (4) and the point at which the thread is used in the manufacturing process, the thread tension being high enough to prevent the formation of snarls and sloughing of coils of the thread from the package, and low and consistent enough to suit usage of the thread in a downstream process. This object is met by a device comprising: a) circular tensioning device arranged co-axial with respect to the package and having a circumferentially running track groove (3); b) a ring (2) being arranged in said track groove (3) with the inner diameter of the ring (2) being higher than the diameter of the track groove (3), but smaller than the outer diameter of the track groove (3), thus allowing the ring (2) to move within said track groove (3) to form a gap for the thread (1) to pass between the inside area of the ring (2) and the track groove (3), whilst diagonally opposite to this gap the ring (2) runs at the smallest outer diameter of the track groove (3).