Stock material feed mechanism
US4718589A · kind A · utility
3Cited by
3References
7Claims
0Family size
Inventor
Key dates
| Filing date | Jun 9, 1986 |
| Grant date | Jan 12, 1988 |
| Priority date | — |
| Expiry date | Jun 9, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D43/11
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An apparatus for adjusting a stroke of a stroke material feed mechanism used in a punch crank press comprises a throw member fixedly attached to the crank shaft of the press for joint rotation therewith. A crank pin means which provides for reciprocal movement of the feed block of the feed mechanism is attached to the throw member. Motor means displaces the crank pin means relative to the throw member to change the eccentricity of said crank pin means relative to the axis of the crank shaft whereby the amount of stock length advanced into the working area of the press is changed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.