Doctor blade holder permitting efficient assembly of doctor assemblies and replacement of doctor blades
US7867364B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2007 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Feb 5, 2029 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21G3/005
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A doctor assembly is disclosed for use in a paper-making machine. The doctor assembly includes a doctor blade holder into which a doctor blade may be inserted and the doctor blade holder includes a pressure plate, pressure adjustment system, a support tray, and a bracket in accordance with an embodiment. The pressure plate is for supporting and aligning the doctor blade in a cross machine direction for application to a machine roll. The pressure adjustment system is for adjusting the pressure applied to the machine roll by the doctor blade, said pressure adjustment means including at least one fluid reservoir having a wall that contacts the pressure plate. The support tray for supporting the at least one fluid reservoir, and the support tray includes at least one bracket alignment feature. The bracket is attached to the support tray for pivotal attachment to the pressure plate. The bracket includes at least one tray alignment feature that is coupled to the bracket alignment feature of the support tray to provide proper alignment of the bracket with respect to the support tray.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.