Apparatus for dieless forming plate materials
US6216508A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jul 12, 1999 |
| Grant date | Apr 17, 2001 |
| Priority date | — |
| Expiry date | Jul 12, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D51/18
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates to an apparatus for the dieless forming of a sheet. The apparatus comprises a pressing mechanism and a sheet holding mechanism which are moved with respect to each other in X, Y and Z-axis directions and has a fixed ceiling plate form having a plane shape matching the bottom profile of a product to be formed; a framelike support plate surrounding the ceiling plate form is raised and lowered by at least one pair of raising/lowering actuators, and restraining actuators apply a controllable restraining force to the sheet byway of a framelike restraining plate clamping the periphery of the sheet in the sheet thickness direction between itself and the support plate. A mechanism for causing the support plate to undergo balanced movement and a material flow control mechanism may be preferably further provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.