Steel pipe rolling mill
US4387584A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1981 |
| Grant date | Jun 14, 1983 |
| Priority date | — |
| Expiry date | Oct 20, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B31/08
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention relates to an apparatus for changing the rolling-mill rolls and disk shoes of steel pipe rolling mills. The apparatus comprises mechanisms for raising and lowering a top and bottom cradle each holding a roll of a rolling mill and a carriage disposed below the bottom cradle and movable transversely, whereby the cradles are moved in and out of the rolling mill housing transversely by the carriage, and a plurality of holding devices each rotatable about a fixed shaft are selectively positioned opposite to a pair of chocks holding a pair of disk shoes for movement in parallel motion thereby changing the disk shoes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.