The device null bottom roller and the top roller of the draw frame for the fiber sliver which increases

摘要

PROBLEM TO BE SOLVED: To provide a more improved device for weighting top rollers.;SOLUTION: The draft machine comprises continuously arranged pair rollers each having a bottom roller and a top roller, wherein a device on a draw frame for fiber slivers weights top rollers. The top rollers are weighted to bottom rollers with press elements of press arms when the device working, two press elements having a common supporting element are associated with each top roller and the devices for weighting are removable. To improve the device, the press elements are rotatably or ternably set on the center of rotation or a pivot bearing and the press elements are connected each other by the supporting elements.;COPYRIGHT: (C)2004,JPO