3D물체를 성형하는 3D 프린터
    2.
    发明申请

    公开(公告)号:WO2019107712A1

    公开(公告)日:2019-06-06

    申请号:PCT/KR2018/010477

    申请日:2018-09-07

    发明人: 이병극

    摘要: 3D물체를 성형하는 3D 프린터가 개시된다. 본 발명에 따른 3D 프린터에 있어서, 프레임; 프레임에 설치되고 광경화성 액상수지를 일정한 압력으로 밀폐수용하는 수지조; 수지조 내에서 광경화성 액상수지에 침지되어 3D 성형물을 지지하는 조형판; 액상수지에 침지하여 조형판과의 사이로 액상수지가 침투하도록 하는 투명바닥판과 투명바닥판을 지지하는 하우징으로 이루어지고 액상수지로부터 압력을 받는 광학하우징; 광학하우징과 같이 승강하며 광학하우징의 투명바닥판과 조형판 사이의 액상수지를 향하여 노광하여 성형층을 형성하는 노광유니트; 및 광학하우징 및 조형판 중 어느 하나를 상대적으로 이격하도록 구동하는 구동부를 포함하는 것을 특징으로 한다. 본 발명에 따른 3D 프린터는 조형판이 상부를 향하도록 하고 조형판과 대향하는 광학하우징의 투명바닥판과 조형판 사이의 성형면에 광학하우징에 인가되는 액상의 수지의 압력을 이용하여 액상의 수지가 원활히 침투하여 기포없는 3D물체의 성형이 가능하다. 또한, 조형판의 상부를 향하여 3D성형물이 적층 성형하므로 조형판에서 3D성형물이 분리되는 문제를 방지한다.

    VALVE ASSEMBLIES FOR CONDUITS
    3.
    发明申请

    公开(公告)号:WO2019017970A1

    公开(公告)日:2019-01-24

    申请号:PCT/US2017/043322

    申请日:2017-07-21

    发明人: WANG, Nicholas

    摘要: In some examples, an apparatus includes a plurality of conduits to transport a material of a three-dimensional (3D) printing system between locations in the 3D printing system. A sensor assembly detects a clogged condition of a first conduit of the plurality of conduits. A valve assembly connected to the plurality of conduits selectively controls flow of the material through the plurality of conduits, the valve assembly controllable to actuate from a first setting to a second setting responsive to the detected clogged condition.

    SYSTEMS, DEVICES, AND METHODS FOR INKJET-BASED THREE-DIMENSIONAL PRINTING
    4.
    发明申请
    SYSTEMS, DEVICES, AND METHODS FOR INKJET-BASED THREE-DIMENSIONAL PRINTING 审中-公开
    基于喷墨打印的三维印刷的系统,装置和方法

    公开(公告)号:WO2018039614A1

    公开(公告)日:2018-03-01

    申请号:PCT/US2017/048705

    申请日:2017-08-25

    IPC分类号: B29C64/112 B33Y70/00

    摘要: Devices and methods are described that provide printing of three-dimensional objects using reactive materials such as materials that result in a polyurethane formulation. Three- dimensional printing in accordance with the present disclosure can be performed using an inkjet printer or other systems that deposit or dispense material. A formulation made up of two or more reactive materials and, optionally, one or more UV-curable materials is also provided. The materials can be jetted based on a desired configuration to achieve a maximum reaction between materials, and can be based on desired jetting or molar ratios. By heating or applying energy on the jetted materials, their reaction and related solidifying can be accelerated. Corrective printing is also provided for, and can be used at desired intervals to eliminate printing errors relative to the object as modeled. Systems and methods used in conjunction with all of the same are provided.

    摘要翻译: 描述了使用反应性材料(例如导致聚氨酯制剂的材料)提供三维物体的印刷的设备和方法。 根据本公开的三维打印可以使用喷墨打印机或其他沉积或分配材料的系统来执行。 还提供了由两种或更多种反应性材料和任选地一种或多种UV可固化材料组成的制剂。 可以基于期望的构型喷射材料以实现材料之间的最大反应,并且可以基于期望的喷射或摩尔比。 通过对喷射材料加热或施加能量,可以加速它们的反应和相关的凝固。 还提供了校正打印,并且可以按照所需的时间间隔使用,以消除相对于建模对象的打印错误。 提供与所有相同的系统和方法。

    CARTRIDGE FOR A STEREOLITHOGRAPHIC MACHINE.
    7.
    发明申请

    公开(公告)号:WO2019097385A1

    公开(公告)日:2019-05-23

    申请号:PCT/IB2018/058858

    申请日:2018-11-12

    申请人: DWS S.R.L.

    摘要: The present invention relates to a cartridge (10) for a stereolithographic machine, comprising: a box-like body (1 1 ) comprising in turn: a container (12), delimited by containment walls (13), having a bottom (14), at least a part of which is transparent, and an opposite access opening (15) adapted to allow access inside the container (12), an inlet mouth (16) and an outlet mouth (17) for a photopolymerisable material, at least one tank (18) for a photopolymerisable material, comprising a transit opening (19) for a photopolymerisable material and an air passage opening (20) communicating with the environment; and comprising: circulation means (21 ) for the circulation of a photopolymerisable material between the outlet mouth (17) and the inlet mouth (16) of the container (12). Between the circulation means (21 ) and the inlet (16) and outlet (17) mouths, and between the circulation means (21 ) and the transit (19) and air passage (20) openings, valve means (22, 23) are interposed, which are configured to alternatively allow the following use configurations of the cartridge (10): a first configuration preventing the passage of photopolymerisable material between the container (12) and the tank (18); a second configuration allowing the passage of photopolymerisable material between the tank (18) and the container (12); a third configuration of circulation for the photopolymerisable material, allowing the passage of photopolymerisable material between the outlet mouth (17) and the inlet mouth (16) of the same container (12).