Patent ID: 6266988
Filing Date: 2001-07-31
Classification: B21B

Abstract:
A cross rolling machine for rolling a metal sheet to a predetermined thickness as the sheet travels from an entrance side to a delivery side thereof, comprising a work roll and a backup roll arranged on a top side of the metal sheet and a work roll and a backup roll arranged on a bottom side of the sheet, and wherein a pair of the work roll and the backup roll on the top side and a pair of the work roll and the backup roll on the bottom side are pair crossed each other, and including top and bottom work roll chocks in which the top and bottom work rolls are respectively retained, and top and bottom backup roll chocks in which the top and bottom backup rolls are respectively retained, and first hydraulic cylinders engaging with the top and bottom work roll chocks and disposed in one set on each of the entrance and delivery sides of the metal sheet, and second hydraulic cylinders engaging with the top and bottom backup roll chocks and disposed in two sets on one of the entrance and delivery sides and in one set on the other of the entrance and delivery sides of the metal sheet.