Apparatus for releasing a press-formed article from a die set
US4755128A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1986 |
| Grant date | Jul 5, 1988 |
| Priority date | — |
| Expiry date | Sep 30, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C51/32
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An improved apparatus and method as provided for releasing sheet material press-formed in a die assembly between mating male and female dies from the die assembly. A first air supply system is provided for injecting air between the male die and sheet material in the die assembly to break any vacuum existing between the male die and the sheet material. Subsequently, a second air supply system is provided for injecting air between the female die and sheet material in the die assembly during ejection of a press-formed article from the female die so as to break any vacuum existing therebetween. A system is provided for discharging excess trim waste severed from the press-formed article and routing the trim waste toward a scrap collector while permitting the article to be routed in another direction toward an article collector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.