Method and apparatus for forming, reforming and curling shells in a single press
US4903521A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 1988 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Sep 2, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D51/38
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of forming container end panels from a sheet of material includes inserting the material into a press at a first level, banking the material at that level, passing the material through a die and preliminarily forming it in a continuous stroke but at a second level and transferring it laterally at the second level for reforming and curling. The apparatus includes blanking and forming tooling at a first station and reforming and curling tooling at second and third stations. The reforming and curling tooling is disposed at the second level and the first, second and third stations are interconnected by an endless, apertured belt also disposed at the second level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.