| 摘要 |
PURPOSE:To make roll changing easy and to reduce an installation cost in a multistage rolling mill by supporting roll chock by means of slider. CONSTITUTION:The supply of the pressure oil to the hydraulic cylinder of each roll bending device 20 is stopped in the case of performing roll changing. When the stoppers 19, 21 mounted on the work side of a slider 17 are removed, the rugged parts 17b, 15a to be engaged with the slider 17 and a backup roll chock 15 are formed with a suitable clearance in a vertical direction and therefore the respective rolls 12, 14 and roll chocks 13, 15 can be put into and out from a housing 16. Since the pipings such as hydraulic hoses or the like for working the device 20 are mounted to the slider 17, there is no need for attaching or detaching the piping at each roll change and the time for the roll change is reduced. |
