Automatic matchplate molding system
US4840218A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 1, 1987 |
| Grant date | Jun 20, 1989 |
| Priority date | — |
| Expiry date | Apr 1, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22C15/23
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Green sand molds for use in casting operations are made automatically by a matchplate molding system. Features of the system include (1) pneumatic apparatus for filling the cope and drag flasks with sand, (2) a pusher on the drag flask for shifting molds of various shapes to a transfer conveyor, (3) a carriage supporting the drag flask for vertical and lateral movement, (4) a lower sand magazine which moves laterally to open and close a sand chute gate while also being movable vertically relative to the gate, (5) a squeeze head which moves between various positions enabling control over the volume of sand delivered to the cope and drag flasks, (6) a vibrator for directly vibrating the matchplates, (7) liners for releasably holding molds in the flasks, (8) an accumulating conveyor for transferring the newly formed molds and (9) a pusher for shoving the molds off of the accumulating conveyor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.