Angled doctor blade arrangement for gravure press
US5152221A · kind A · utility
Inventor
Key dates
| Filing date | Apr 5, 1991 |
| Grant date | Oct 6, 1992 |
| Priority date | — |
| Expiry date | Apr 5, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F9/1072
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A doctor blade, for removing excess ink from a gravure cylinder, comprises first and second blade sections formed of flexible metal. The blade sections are joined by a rigid, slotted coupling member so as to lie at a substantial angle to each other. The first blade section contacts an upwardly moving section of the cylinder at an angle of from 65 to 90 degrees. The second blade section is mounted in a cantilever manner to accommodate resilient deflection of the first blade section. The first blade section is thus maintained in substantially uniform pressure contact with the cylinder while at the same time being disposed at a relatively large angle to the surface of the cylinder for optimum doctoring effectiveness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.