Doctor blade unit for an additive manufacturing system having a pulverous starting material
AssigneeALD Vacuum Technologies GmbH
InventorsKarsten Schäfer, Arno Niebling, Fuad Osmanlic
Life of this patent
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Abstract
The present invention relates to a doctor blade unit for an additive manufacturing system having a pulverous starting material. By means of the doctor blade unit according to the invention, improved linearity of the doctor blade and parallelism with respect to the build plane are achieved. The doctor blade is suspended on a crossmember by means of adjustable fastening elements, and the crossmember in turn is fastened, on one side by means of a fixed bearing and on the other side by means of a floating bearing, to a guide support.
Claims18
A doctor blade unit for an additive manufacturing system with a pulverous starting material, comprising a doctor blade (1) and a suspension system (2) which is to be mounted in a horizontally movable manner in the additive manufacturing system, characterized in that
- the suspension system (2) comprises a crossmember (3) which is mounted on the one side in a locating bearing (4) and on the other side in a floating bearing (5),
- the crossmember (3) is connected via the locating bearing (4) and the floating bearing (5) in each case to a guide bracket (6), and
- the doctor blade (1) is fastened in a suspended manner below the crossmember (3) via a multiplicity of fastening means (7) along its length, the fastening means (7) permitting a spacing adjustment between the doctor blade (1) and the crossmember (3) for the parallel orientation of the doctor blade (1) with respect to a construction level of the additive manufacturing system.
Dependencies are inferred from the claim text.