Patent ID: 6571592
Filing Date: 2003-06-03
Classification: B21B

Abstract:
A rolling mill for rolling plate and strip, comprising:a mill frame, an upper roll system and lower roll system, an upper roll support and a lower roll support, and a driver operable to adjust the clearance between the rolls, said upper and lower roll systems being stacked one on top of the other, wherein at least one of the roll supports comprises: a first middle roll support, first lateral roll supports located on either side of the first middle roll support and first central supporting means positioned between said first middle roll support and each of said first lateral roll supports, and wherein said first lateral supports are operable to slide laterally in the horizontal direction relative to said first middle roll support; second central supporting means being disposed between the frame and said first middle roll support, and third central supporting means being disposed between the frame and said first lateral roll supports; said first, second and third central supporting means being arranged in the middle region of the axis of a roll body of a working roll with their lengths not longer than that of the roll body of the working roll; said frame, said one of the roll supports, first, second and third central support means together forming a first two-dimensional automatic central supporting system; in the operation state of the rolling mill, said first and third central supporting means abut against a corresponding first lateral roll support at the central region of the first lateral roll support in the axial direction of the rolls; and said second central supporting means abuts against said first middle roll support at the central region of the first middle roll support in the axial direction of the rolls.