Knockout for punch scrap
US4224851A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 26, 1978 |
| Grant date | Sep 30, 1980 |
| Priority date | — |
| Expiry date | Jun 26, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/2131
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A scrap knockout for use with a rotary punching apparatus includes a knife cylinder equipped with punch blades on the outer peripheral surface, and an anvil cylinder having a layer against which the blades are pressed, so as to punch a workpiece fed in between the two rotating cylinders. The scrap knockout is so arranged that each of the punch blades is formed with a cut or slot, and a scrap knockout lever is engaged with the cut or slot so as to be restricted in its upward and downward movements, with one end of the knockout lever is a free end located in the space surrounded by the punch blade and the other end is pivotally held by a punch blade support, so that the scrap formed by the punching can be removed by the upward motion of the lever.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.