Device for feeding a pulp suspension with eccentric shaft adjustment
AssigneeAndritz-Patentverwaltungs-Gesellschaft m.b.H.
InventorsWilhelm Mausser, Manfred Schmid, Walter Writzl, Rudolf Greimel, Harald Weigant
Life of this patent
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Abstract
A device for feeding a pulp suspension to a tissue machine includes a headbox having top and bottom lips defining a slice gap forming a free flow jet of the pulp suspension. The device also includes at least one eccentric shaft for setting the slice gap between a minimum and a maximum height. Each eccentric shaft is supported at several points over the machine width and is driven directly by a gear motor.
Claims7
Device for feeding a pulp suspension to a tissue machine having a pair of rolls, the device comprising:
- a headbox having a machine width and including top and bottom lips adapted for facing the pair of rolls, the top and bottom lips each comprising a unitary member having a first end and an oppositely disposed second end portion, the first ends of the top and bottom lips defining a slice gap forming a free flow jet of the pulp suspension, the second end portion of at least one of the top and bottom lips defining an opening extending over the machine width;
- at least one eccentric shaft for setting the slice gap between a minimum and a maximum height, the eccentric shaft being disposed within the opening of the at least one of the top and bottom lips and supported at several points over the machine width;
- and
- a gear motor connected to and directly driving the eccentric shaft.
Device for feeding a pulp suspension to a tissue machine having a pair of rolls, the device comprising:
- a headbox having a machine width and including top and bottom lips adapted for facing the pair of rolls, the top and bottom lips each comprising a unitary member having a first end and an oppositely disposed second end portion, the first ends of the top and bottom lips defining a slice gap forming a free flow jet of the pulp suspension, the second end portions of each of the top and bottom lips defining an opening extending over the machine width;
- a plurality of eccentric shafts for setting the slice gap between a minimum and a maximum height, a one of the eccentric shafts being disposed within each of the openings of the top and bottom lips, each of the eccentric shafts being supported at several points over the machine width;
- and
- a gear motor connected to and directly driving the eccentric shafts.
Dependencies are inferred from the claim text.