Roller leveler and metal sheet flattening method
US9333546B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 3, 2012 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | Sep 11, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B2273/06
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A roller leveler for flattening a metal sheet or plate having a cut-sheet form includes leveling rolls disposed in a staggered state on upper and lower sides of a pass line and configured to sandwich and flatten the metal sheet while pressing it therethrough, a hydraulic pressing cylinder configured to press the metal sheet via the leveling rolls, a drive unit configured to rotate the leveling rolls, and a pinch roll unit disposed on one side of a leveling roll array area and including a pair of pinch rolls. The pressing cylinder presses the metal sheet via the leveling rolls with a pressing amount necessary for flattening the metal sheet, while the metal sheet is passed by a drawing force applied by the pinch rolls and a driving force applied by the drive unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.