发明名称 |
Method and device for conveying particulate material during the layer-wise production of patterns |
摘要 |
The present invention relates to apparatus, devices and methods for conveying particulate material during the manufacture of patterns in layers, wherein powder is conveyed out of a reservoir into a spreader unit and, if applicable, excess powder fed to the spreader unit is again conveyed back into the reservoir and wherein this conveying takes place in a closed conveying circuit. |
申请公布号 |
US9469074(B2) |
申请公布日期 |
2016.10.18 |
申请号 |
US201414250838 |
申请日期 |
2014.04.11 |
申请人 |
VOXELJET AG |
发明人 |
Ederer Ingo;Hartmann Andreas |
分类号 |
B65G53/00;B29C67/00;B22F3/00;B05C19/06 |
主分类号 |
B65G53/00 |
代理机构 |
The Dobrusin Law Firm, P.C. |
代理人 |
The Dobrusin Law Firm, P.C. |
主权项 |
1. An apparatus for the manufacture of a three dimensional object in layers comprising
i) a device for conveying a particulate material during the manufacture of the object in layers, wherein the devise comprises
a) a reservoir,b) a spreader unit, andc) a plurality of particulate material conveying systems including a first particulate material conveying system and a second particulate material conveying system; and ii) a build platform on which the object is built; wherein the first particulate material conveying system conveys the particulate material from the reservoir to the spreader; the spreader is adapted for being filled with the particulate material, releasing the particulate material while moving over the build platform, and spreading the particulate material over the build platform; and the second particulate material conveying system conveys excess particulate material that was fed to the spreader back to the reservoir; so that at least the reservoir and the spreader unit are contained in a closed conveying circuit. |
地址 |
Friedberg DE |