Device for simultaneously forming cope and drag molds
US5409052A · kind A · utility
4Cited by
3References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 1993 |
| Grant date | Apr 25, 1995 |
| Priority date | — |
| Expiry date | Nov 24, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22C19/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Sand is charged into two spaces defined by a match plate, a pair of flasks, and a pair of squeeze plates, and is then compressed by moving the squeeze plates in the flasks toward the match plate to form the cope and drag molds. The properties of the molding sand are detected during the forming of the molds in order to suitably adjust the sand and the device. The device includes linear encoders connected to the squeeze plates so as to detect the amounts of the movements of the squeeze plates, and an electrode penetrating one squeeze plate so as to detect the electric resistance or the water-content value of the mold in the flask.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.