Device and method for applying layers of a powder material onto a surface
First Claim
1. Device for applying layers of a powder material in a construction field, comprising an application device, which can be moved in parallel to said construction field back and forth between two end positions in order to apply a layer of material and which comprises a blade for removing excess material when generating a layer of material, characterized by a material transport device, which is adapted to transfer material from one side of the blade away from said construction field to the other side of the blade facing said construction field, wherein the material transport device comprises a conveyor roller, which is rotatable around an axis, for the transfer of material from the one side to the other side of the blade.
1 Assignment
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Accused Products
Abstract
A device (51) for applying layers or a powder material (71) by means of an application device (52) is described, wherein the application device (52) can be moved back and forth between two end positions in order to apply a layer of material (71) and the application device (52) comprises a blade (56) for removing excess material during the application of a layer of material (71). The device (51) is characterized by a material transport device (53), by which the material can be transferred from one side of the blade (56) to the other side of the blade. The device has the particular advantage that layers of material (71) can be applied without any loss of material and is particularly applicable in a laser sintering device.
83 Citations
10 Claims
- 1. Device for applying layers of a powder material in a construction field, comprising an application device, which can be moved in parallel to said construction field back and forth between two end positions in order to apply a layer of material and which comprises a blade for removing excess material when generating a layer of material, characterized by a material transport device, which is adapted to transfer material from one side of the blade away from said construction field to the other side of the blade facing said construction field, wherein the material transport device comprises a conveyor roller, which is rotatable around an axis, for the transfer of material from the one side to the other side of the blade.
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8. Device for applying layers of a powder material in a construction field, comprising an application device, which can be moved in parallel to said construction field back and forth between two end positions in order to apply a layer of material and which comprises a blade for removing excess material when generating a layer of material, characterized by a material transport device, which is adapted to transfer material from one side of the blade away from said construction field to the other side of the blade facing said construction field, wherein the transport device is a fluidization device, by which gas can be blown into the material such that the material fluidizes and flows from one side of the blade to the other side of the blade, when the application device is in a predetermined position.
Specification