Method and device for slitting a material web
US6382066B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1999 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Jul 21, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/9471
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Method and a device for slitting a material web traveling in the run direction in which at least one knife unit with a cutting edge, and arranged on a carrier that is movable transversely to the run direction in a machine frame, is positioned. A measurement device measures the position. The position measurement is improved in that the measurement device has two measurement transducers. A first measurement transducer is arranged on the carrier and measures the distance from the cutting edge to a reference point that is fixed with respect to the carrier. A second measurement transducer measures the distance between a reference point that is fixed with respect to the carrier and a zero point that is fixed in the machine frame. The absolute position of the cutting edge is established by combining the two distances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.