| 摘要 |
<p>PURPOSE:To reduce the size and initial costs of driving devices for the purpose of crown adjustment by using split type eccentric rolls for the backup rolls of multistage cluster rolling mills, and moving the other eccentric rolls apart from a plate material with the eccentric rolls at the center as a ference. CONSTITUTION:In multistage cluster rolling mills, backup rolls 4 are split to plural rolls in the direction intersecting orthogonally with their axial direction. With the eccentric rolls 4c in the central parts among the respective eccentric rolls 4a-4e as a reference the other rolls 4a, 4b, 4d, 4e are moved so as to be moved apart from a plate material whereby their crowns are adjusted. The thickness of the plate is controlled by utilizing screw down devices, etc. By such method the driving forces for the rollers 4a-4e are decreased and equipment costs are reduced.</p> |
