Automatic web guide roller cleaning device
US4930415A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1989 |
| Grant date | Jun 5, 1990 |
| Priority date | — |
| Expiry date | Jan 24, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2404/162
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A multiplicity of web guide rollers in a printing machine incorporate motors therein provided with respective reduction units and each reduction unit is provided on the side of an output shaft with a mechanism such as a clutch, so that the rollers can rotate normally, reversely or idly. When the web guide roller is cleaned, the roller is rotated in a direction opposite to the running direction of the web, whereby the contamination on the surface of the roller is wiped off by the web. Since the rotating directions of the respective rollers are selected by the controller in association with running paths of webs, so that automatic cleaning of the web guide rollers can be effectively performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.