B - Operations – Transporting – 05 – C
Patent
B - Operations, Transporting
05
C
32/39
B05C 11/04 (2006.01) B05C 21/00 (2006.01) D21H 23/34 (2006.01)
Patent
CA 2006151
An apparatus for controlling the tilt angle of a doctor blade includes two support blocks of a doctor blade supporting beam, a first actuator by which the supports are movable about on their bearing points, a blade supporting beam pivotally mounted between upper parts of the support blocks having a doctor blade attached to the beam, and a second actuator by which the blade supporting beam is movable about on its pivoting point in order to control the tilt angle and loading of the blade. Between the support blocks, an axle is pivotally mounted which is arranged via a transfer apparatus to rotate essentially in the same way as the blade support beam. At least one guiding member is eccentrically attached to the axle. The first actuator is arranged to rest against the guiding member, whereby the eccentricity of the guiding member causes the rotation of the supporting blocks about the bearing points, when the blade supporting beam is rotated around the bearing point with the help of the second actuator whereby it is possible to maintain a constant tip angle during any changes in the blade loading.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Valmet Paper Machinery Inc.
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