Tube cutter with phase changer
US4112794A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1977 |
| Grant date | Sep 12, 1978 |
| Priority date | — |
| Expiry date | Sep 6, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T82/16803
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tube cutoff device which includes a rotatable cutter head for radially slidably supporting a cutter and a pair of support rollers in circumferentially spaced relationship. A stationary tubular guide extends through the cutter head for permitting a tube to be fed therethrough and positioned between the cutter and the support rollers. A cam is rotatably supported on the cutter head and cooperates with the cutter and rollers for displacing same radially inwardly into engagement with the tube which is to be cut. The cutter head and the cam are rotatably drivably connected to first and second power trains, respectively, which cause the cam and cutter head to normally rotate at the same rotational speed. A phase change device is coupled between the first and second power trains and, when activated, causes the second power train and hence the cam to be rotated at a slightly different rotational speed, which differential rotational speed causes the cutter and support rollers to be cammed radially inwardly for supporting and cutting engagement with the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.