Roll forming apparatus and method
US4109499A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 16, 1977 |
| Grant date | Aug 29, 1978 |
| Priority date | — |
| Expiry date | Feb 16, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D5/08
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A readily adjustable, constant pressure is exerted upon forming rolls of a roll forming machine for ease in setup and to accommodate variations in stock characteristics. In one embodiment, the upper rolls are mounted in a fixed position on roll stands and the lower rolls are supported by hydraulic actuators affixed to the bed of the machine. Alternatively, the lower rolls may be fixed and the upper rolls connected to actuators. As a further alternative, both the upper and the lower forming rolls may be supported by actuators. Hydraulic circuitry for controlling the actuators including regulator devices and gauges at each roll stand is also illustrated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.