Forming apparatus for strip materials
US5740687A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1995 |
| Grant date | Apr 21, 1998 |
| Priority date | — |
| Expiry date | Apr 21, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/9454
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A forming apparatus for forming a selected profile in a sheet of material includes a frame, a sheet drive to advance the sheet of material through the frame, a drive assembly for powering the sheet drive, forming rollers to configure the sheet into the desired profile and a shear assembly to cut the formed sheet into desired lengths. The sheet drive includes pairs of coacting rollers with each pair comprising a driven roller connected to the drive assembly and a free-wheeling roller that is adjustably mounted relative to its associated driven roller. The shear assembly has a housing that movably mounts a pair of opposed blade mounts that have facing channels which receive lateral edges of a blade. These channels are wider than the blade thickness so that the blade freely floats and is thus self-aligning between dies. The blade has a cutting edge configured to always attack the formed sheet at a rake angle of at least five degrees so that all cutting of the formed sheet is by a scissor action as opposed to a chop cut.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.