| 摘要 |
PURPOSE:To automatically adjust pressing loads in plural cylinder units by use of a simple structure by connecting a synchronous cylinder to a bending cylinder of a roll movable in the axial direction. CONSTITUTION:Guiding blocks 5, 25 movable in the vertical direction along a project block 3 in a housing window frame are engaged with bearing boxes 12, 23 supporting both end parts of a rolling roll movable in the axial direction. A synchronous cylinder 30 is connected to a hydraulic circuit of plural bending cylinders 14, 14' installed in the axial direction of the blocks 5, 25. The cylinder 30 consisting of a rod 31, the same two pistons 32, 33 integrated with the rod 31, and a bulkhead 34 between the pistons 32, 33 forms four rooms having the same sectional area. The cylinder 30 has an action to supply an equal fluid volume to the respective cylinder 14, 14'. |
