Apparatus for trimming a flanged end of a tubular article
US4815348A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1987 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | Jul 10, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/9437
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A punch and die assembly for trimming the flared end of a can body comprises a reciprocable punch (10), and a split die (15) consisting of two semi-circular segments (14, 16) movable between an open position allowing infeed of article (A), and a closed position around the article. During co-operation of the cutting edges (35, 61) and (51, 62) on the punch (10) and die (15) respectively to trim the can body, the punch is centralized accurately in relation to the die by engagement of a radially outwardly facing surface (521, 74) on the die with a radially inwardly facing surface (321, 73) on the punch; rough alignment between punch and die having previously been achieved by engagement of further surfaces on the punch and die when the die was closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.