Anti-jamming die
US4691604A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 25, 1986 |
| Grant date | Sep 8, 1987 |
| Priority date | — |
| Expiry date | Apr 25, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/2216
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An improved press produces oval blanks arranged in a "nested" pattern from a web of material. The press includes a cutting die plate having a plurality of oval-shaped discharge apertures, an inclined die shoe underneath the cutting die plate, and a punch for piercing a web supported on the cutting die plate to form blanks and then deposit the blanks into the inclined die shoe via the discharge apertures. Partitions divide the inclined die shoe into a plurality of blank transfer lanes. Each transfer lane connects one of the discharge apertures to a companion exit region. Guide rails are provided to guide blanks deposited into the transfer lanes toward the exit regions as the blanks fall under gravity through the inclined die shoe. A ramp is provided in selected transfer lanes to tilt the falling blanks therein relative to the path established by the guide rails to move those blanks laterally in the selected transfer lanes away from an adjacent transfer lane to avoid entanglement problems which could jam the die.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.