Pneumatic feeder for punch presses
US4619390A · kind A · utility
3Cited by
9References
7Claims
0Family size
Inventor
Key dates
| Filing date | Aug 9, 1985 |
| Grant date | Oct 28, 1986 |
| Priority date | — |
| Expiry date | Aug 9, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2278
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A pneumatic feeder for punch presses and the like wherein a novel circuit and arrangement is incorporated in the feeder control system for causing the stock gripping means on the reciprocating feed slide to be released in response to the completion of each intermittent stock feeding stroke of the slide. This circuit and control arrangement includes a fluid motor means that is controlled by a pilot operated supplementary valve means which in turn is controlled by an air jet means that is arranged and adapted to sense the arrival of the feed slide at a predetermined position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.