Machine for cleaning castings
US4639968A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1985 |
| Grant date | Feb 3, 1987 |
| Priority date | — |
| Expiry date | Aug 5, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D29/007
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A machine for automatically blowing debris, such as sand, out of cavities within engine block and similar type castings which have side openings connected to end openings to form internal cavities. The machine has a ferris-wheel-like frame arranged to rotate around a horizontal axis. The frame is divided into a number of horizontally opening compartments, each arranged to receive and hold a single casting. A dirty casting is loaded, horizontally endwise, while the frame is momentarily stationary, into the compartment which is then located in the lowermost position. Thereafter, the frame is rotated until the next compartment is located in the lowermost position, at which point the rotation is stopped so that the clean casting in the now lowermost compartment is horizontally removed endwise and is replaced with the next dirty casting. The stop, followed by the rotation, sequence is repeated so that each casting, within each compartment, is indexably rotated around the axis. During the time that the frame and castings are rotating, high pressure air blowing nozzles, which are located in each compartment, automatically swing into the openings located on the sides of the castings to blo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.