PURPOSE: To reduce a stopping time for adjusting height by changing the height of a running plane of a rolling material which passes between rolls of a flange extruding stand with respect to the height of an adjusted running plane in the other rolling stands when the rolls are operated and fixing it.
CONSTITUTION: A carrier bottom plate 1 is in a stationary state on the end surface 2a of a screw spindle 2. The screw spindle 2 is supported by the lower end of a spindle gear 7 and guided by a screw of a thrust nut 8 which is rotationally combined with the gear 7, and the nut 8 is enclosed by a cylindrical shell piston 10. The piston 10 is arranged within a spindle transmitting casing 6 so as not to rotate and so as to transfer in the axial direction. The carrier bottom plate 1 is raised and lowered to a prescribed position via the screw spindle 2 by the use of a spindle worm screw 5 and the spindle gear 7, the cylindrical shell piston 10 is stimulated by a pressure medium at the position, and the thrust nut 8 is fixed to the transmitting casing 6 which is fixed to a base F.
GEORUKU ENGERU
BURUKUHARUTO PORONBUKA
