Molding machine and a pattern carrier used therefor
US7237593B2 · kind B2 · utility
1Cited by
12References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2004 |
| Grant date | Jul 3, 2007 |
| Priority date | — |
| Expiry date | Oct 21, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22C15/08
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In a molding machine, foundry sand thrown into a molding space defined by a pattern plate and flask members is compressed in two steps. Namely, in the first step a lower subsidiary flask is stationary while in the second step the flask is movable. The pattern carrier molding machine comprises a molding base, flask-setting cylinders, a lift-support frame, and a segment-squeeze sand hopper. The auxiliary flask 62 of the compact pattern-plate carrier is installed movably up and down through a plurality of upward oil cylinders 63,63 that are expanded/contracted via special oil cylinders 64,65 operated by outside cylinders 68,69.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.