| 摘要 |
A strand guiding means has at least two framing parts arranged in pairs and opposite each other, which are connected by drawing anchors. Upon each of the drawing anchors an outer and an inner bushing, having corresponding helical sliding faces and an angle of inclination that is smaller than the pertaining angle of friction, are arranged. Each one of the inner bushings is rotated relative to the outer bushing by a pressure medium cylinder, whereby one of the two framing parts is movable and the strand guiding rollers accommodated by the framing parts are brought into and out of an engagement position. |
