Patent ID: 6073475
Filing Date: 2000-06-13
Classification: B21B

Abstract:
A rolling stand comprising:a stand casing;a first cylinder holding packing having a rolling cylinder rotatably mounted therein;a second cylinder holding packing having a rolling cylinder rotatably mounted therein with a rolling axis in parallel relation to a rolling axis of said rolling cylinder of said first cylinder holding packing; andfour tie rods positioned at respective comers of said stand casing, each of said four tie rods having a right-hand screw and a left-hand screw threadedly connected respectively to said first and second cylinder holding packings so as to move at least one of said first and second cylinders holding packings relative to the other of said first and second cylinder holding packings, one of said first and second cylinder holding packings comprising:an external bridge part coupled to said tie rods at either said right-hand screw or said left-hand screw;an internal part directly receiving the cylinder therein, said internal part coupled to said tie rods along an unthreaded portion of each of said tie rods; anda pressure variation means having a fluid dynamic cylinder connected to said external bridge part and said internal part, said pressure variation means for moving said internal part toward or away from said external bridge part or for exerting a pressure onto said internal part relative to a predetermined amount of fluid introduced into or removed from said fluid dynamic cylinder.