| 摘要 |
PURPOSE:To make compact a changing device and to reduce a changing time by using a hook mounted on a roll changing driving device both as a hook for work roll changing and a hook using a stool for changing other rolls. CONSTITUTION:A roll changing truck 19 is pushed in a changing position and is connected with a rail for work and intermediate rolls in a housing 1. Then, the truck 19 is connected with a work roll changing hook to put upper and lower work rolls and upper and lower intermediate rolls on the truck 19 and to remove their rolls. A stool 17 is put on the truck 19. A hook 24 for changing is connected with a hook 25 installed on the stool 17 and the hooks 24, 25 are pushed between upper and lower reinforcing rolls by a changing driver 22 by utilizing a rail of the truck 19 and a rail 9 or a rail for intermediate roll changing. After that, the reinforcing roll is put on the stool 17. A movable frame 30 of the stool 17 moves up to put the stool 17 and a roll 6a on a lower reinforcing roll 6b being put on a rail 8. After that, the rolls 6a, 6b are put on a rail for reinforcing roll by the device 22. |
