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1. 发明申请

WO1997011836A1 APPARATUS FOR MAKING THREE-DIMENSIONAL ARTICLES INCLUDING MOVING BUILD MATERIAL RESERVOIR AND ASSOCIATED METHOD 审中-公开
标题翻译：制造三维制品的装置，包括移动建筑材料储存和相关方法
公开(公告)号：WO1997011836A1
公开(公告)日：1997-04-03
申请号：PCT/US1996015581
申请日：1996-09-27
申请人： BPM TECHNOLOGY, INC. , BARLAGE, William, Berdell, III , FERREIRA, Manuel, Michael
发明人： BPM TECHNOLOGY, INC.
IPC分类号： B29C67/00
CPC分类号： B41J2/17593 , B29C64/112 , B29C64/40 , B33Y10/00 , B33Y30/00 , B33Y40/00
摘要： A three-dimensional article making apparatus includes a first positioner (71) for positioning a build material jetting head (34) along a first direction, a second positioner (69) for positioning the first positioner (71) along a second direction so that the jetting head (34) is effectively positionable along the second direction as well, and a build material reservoir (78) being mounted on the first positioner (71) so that a flexible connecting tube (72) need only flex to accommodate positoning of jetting head (34) along the first direction but not along the second direction. The jetting head (34) may be a piezoelectric jet which operates by forming a negative meniscus at an orifice of jet between droplets. Accordingly, the build material reservoir (78) may be mounted vertically relative to the piezoelectric jet to form the negative meniscus by negative head pressure. The apparatus preferably includes a solid build material supply (100) mounted on an apparatus frame (31) for storing build material in solid form. The first and second positioners (71, 69) may be used for selectively positioning the build material reservoir (78) adjacent the solid build material supply (100) to replenish build material within the build material reservoir. In addition, a build material level sensor (106) may be provided for initiating replenishment of the build material reservoir (78) responsive to a low level of build material. Related methods are also disclosed.
摘要翻译：三维制品设备包括用于沿着第一方向定位构建材料喷射头（34）的第一定位器（71），用于沿第二方向定位第一定位器（71）的第二定位器（69）喷射头（34）也可以沿着第二方向有效地定位，并且建筑材料储存器（78）安装在第一定位器（71）上，使得柔性连接管（72）仅需要弯曲以适应喷射头（34）沿着第一方向但不沿第二方向。喷射头（34）可以是通过在液滴之间的射流孔处形成负弯液面来操作的压电射流。因此，构建材料储存器（78）可以相对于压电射流竖直安装，以通过负头压力形成负弯液面。该装置优选地包括安装在设备框架（31）上用于存储固体形式的建筑材料的固体建筑材料供应（100）。第一和第二定位器（71,69）可以用于选择性地定位与固体构建材料供应（100）相邻的构建材料储存器（78），以补充构建材料储存器内的构建材料。此外，可以提供构建材料水平传感器（106），用于响应于低水平的构建材料开始补充建筑材料储存器（78）。还公开了相关方法。

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