Cassette-type molding die
US4861254A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1988 |
| Grant date | Aug 29, 1989 |
| Priority date | — |
| Expiry date | Mar 2, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/4052
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A cassette-type molding die comprises a die plate unit having fitting bores and a cassette die unit including movable and stationary cassette plates between which a molding cavity is defined, an ejector cassette plate, and ejector pins disposed between the movable cassette plate and the ejector cassette plate. The cassette die unit can be detachably inserted into the fitting bores of the die plate unit. As a result, the cassette die unit can be easily exchanged with another cassette die unit while the movable and stationary die plates of the die plate unit are very close together. This speeds up the process of changing cassette die units, and also allows for the overall cassette-type molding die to be smaller than conventional units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.