公开(公告)号：WO2014184117A1

公开(公告)日：2014-11-20

申请号：PCT/EP2014/059586

申请日：2014-05-09

Applicant: BLUEPRINTER APS

Inventor： TJELLESEN, Frederik, Walsted ,  HARTMANN, Anders, Ørnsholt

IPC: B29C67/00 ,  B29C35/16

CPC classification number: B29C67/0088 ,  B29C35/16 ,  B29C64/153 ,  B29C64/20 ,  B29C64/386 ,  B29C2035/1608 ,  B29K2105/251 ,  B33Y30/00

Abstract: A three-dimensional printer (100) having a means for cooling (124) the uppermost surface of a material bed in a region immediately before a deposited layer of material (e.g. powder) at the uppermost surface is separated from a protective sheet (116). The protective sheet (116) provides a physical barrier between the deposited layer of material and a thermal print head (114) during printing. The separation of the protective sheet from the material bed may occur to create a distribution gap for a new layer of powder to be deposited (118). The cooling means may facilitate separation of the protective sheet from the deposited layer, and especially from the portion of that layer that has been heat-treated in the preceding printing pass. The cooling means may be an actively cooled surface on a separator that formed part of the print head.

Abstract translation: 一种三维打印机（100），其具有用于冷却（124）在最上表面处的沉积的材料层（例如粉末）之前的区域中的材料床的最上表面的装置（124）与保护片（116）分离， 。 保护片（116）在印刷期间在沉积的材料层和热打印头（114）之间提供物理屏障。 可能会发生保护片与材料床的分离，以产生待沉积的新的粉末层的分配间隙（118）。 冷却装置可以促进保护片与沉积层的分离，特别是在先前打印通过中已被热处理的那个层的部分。 冷却装置可以是形成打印头部分的分离器上的主动冷却表面。

公开(公告)号：WO2014128255A1

公开(公告)日：2014-08-28

申请号：PCT/EP2014/053415

申请日：2014-02-21

Applicant: BLUEPRINTER APS

Inventor： TJELLESEN, Frederik ,  HARTMANN, Anders

IPC: B41J2/32 ,  B29C67/00 ,  B41J2/335 ,  B41J29/377

CPC classification number: B29C67/0085 ,  B28B1/001 ,  B28B17/00 ,  B29C64/135 ,  B29C64/153 ,  B29C64/20 ,  B33Y30/00 ,  B41J2/32 ,  B41J2/3358 ,  B41J29/377 ,  B41J2202/03

Abstract: A printer head for a thermal printer (106) for building a three-dimensional model by sequential deposition of a plurality of cross-sectional layers, the thermal print head (1) being movable relative to a material bed (102) over a deposited layer (6). A protective sheet (3) might be disposed between the thermal print head (1) and deposited layer (6) in a thermal printer according to the invention. Temperature control of the material bed (102) to prevent warping of the model is provided by an independently heatable cover (52, 58) in contact with the surface of the material bed (102). The thermal print head further comprises a cooling element.

Abstract translation: 一种用于热打印机（106）的打印机头，用于通过顺序沉积多个横截面层来建立三维模型，所述热打印头（1）可相对于材料床（102）移动到沉积层 （6）。 可以在根据本发明的热敏打印机中的热敏打印头（1）和沉积层（6）之间设置保护片（3）。 通过与材料床（102）的表面接触的独立可加热的盖（52,58）提供用于防止模型翘曲的材料床（102）的温度控制。 热敏打印头还包括冷却元件。

公开(公告)号：WO2014044676A1

公开(公告)日：2014-03-27

申请号：PCT/EP2013/069275

申请日：2013-09-17

Applicant: BLUEPRINTER APS

Inventor： TJELLESEN, Frederik Walsted ,  HARTMANN, Anders Ørnsholt

IPC: B29C67/00

CPC classification number: B29C64/40 ,  B22F3/003 ,  B22F3/005 ,  B29C64/153 ,  B29C64/20 ,  B33Y30/00 ,  B33Y40/00 ,  B65G47/16

Abstract: A powder feed mechanism (10) for a three-dimensional printer in which a heap of powder is drawn up from a powder container to be spread across a material bed (12) rather than dropped or deposited on it. The mechanism comprises a carrier arm (26) that moves through a powder chamber (15), and a support platform (28) for carrying a heap of powdered build material. The support platform moves with the carrier arm. The carrier arm moves to a powder delivery position in which the support platform is in a transverse orientation for lying flush with the material bed. This arrangement can reduce the path travelled by the powder from the powder chamber to the material bed and give greater control over the shape of the heap of powder that is to be spread over the material bed.

Abstract translation: 一种用于三维打印机的粉末进给机构（10），其中一堆粉末从粉末容器中拉出以分散在材料床（12）上，而不是下落或沉积在其上。 该机构包括移动通过粉末室（15）的承载臂（26）和用于承载一堆粉状构建材料的支撑平台（28）。 支撑平台与承载臂一起移动。 承载臂移动到粉末输送位置，在该粉末输送位置，支撑平台处于与材料床平齐的横向取向。 这种布置可以减少粉末从粉末室移动到材料床上的路径，并且更好地控制要铺展在材料床上的粉末堆的形状。