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1
US2021078255A1
REFLECTOR ASSEMBLY FOR ADDITIVE MANUFACTURING
Publication/Patent Number: US2021078255A1 Publication Date: 2021-03-18 Application Number: 17/050,316 Filing Date: 2018-10-29 Inventor: Esquius, Berengueras Ferran   Comas, Cespedes Esteve   Fernandez, Aymerich Ismael   Barnes, Arthur H.   Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.   IPC: B29C64/277 Abstract: A reflector assembly for an additive manufacturing apparatus comprises a first reflector comprising a first reflector section having a first reflecting surface and a second reflector comprising a second reflector section having a second reflecting surface. The first reflector section is for reflecting radiation from a first radiating element located, in use, proximate to the first reflecting surface, and the second reflector section is for reflecting radiation from a second radiating element located, in use, proximate to the second reflecting surface. The first reflector section and the second reflector section are each formed of a ceramic material.
2
CN112454891A
一种高韧性工件制造方法及设备
Substantial Examination
Publication/Patent Number: CN112454891A Publication Date: 2021-03-09 Application Number: 202011168375.0 Filing Date: 2020-10-28 Inventor: 李俭   文杰斌   鲍光   陈礼   Assignee: 湖南华曙高科技有限责任公司   IPC: B29C64/153 Abstract: 本发明提供了一种高韧性工件制造方法,包括如下步骤:将重量份数比为95~99.5:0.5~5的高分子粉末和金属粉末共混均匀,制得高分子复合粉末材料;将所述高分子复合粉末材料放入以CO激光器和光纤激光器为混合光源的选择性激光烧结设备中进行烧结,烧结工艺具体为:铺设层厚为0.05~0.2mm的高分子复合粉末材料,将所述高分子复合粉末材料预热至设定温度,所述设定温度比高分子粉末的熔点低5~20℃,首先采用CO激光器对待烧结层粉末进行烧结,再采用光纤激光器对待烧结层粉末进行光纤烧结,重复所述烧结工艺,直至工件烧结完成。所制备的工件不仅性能优异,表面电阻率低,还可以作为很好的抗静电材料。
3
CN112297432A
3D打印设备的标定方法、系统及3D打印方法和设备
Substantial Examination
Publication/Patent Number: CN112297432A Publication Date: 2021-02-02 Application Number: 202010991559.0 Filing Date: 2020-09-18 Inventor: 荣左超   马劲松   于清晓   赖永辉   何云伟   Assignee: 上海联泰科技股份有限公司   IPC: B29C64/277 Abstract: 本申请公开一种3D打印设备的标定方法、系统及3D打印方法和设备,本申请通过设置多个能量辐射装置,增加了能量辐射装置总体的幅面大小,并通过对3D打印设备的标定,使得总幅面中各位置的辐射能量均衡,避免了由于多个能量辐射装置导致的拼缝问题,在增大幅面的同时保证了打印质量。
4
US2021008792A1
SYSTEM AND METHOD FOR THREE-DIMENSIONAL FABRICATION
Publication/Patent Number: US2021008792A1 Publication Date: 2021-01-14 Application Number: 16/507,015 Filing Date: 2019-07-09 Inventor: Wang, Jia Chang   Yang, Tseng Pu   Dommati, Hitesh   Assignee: National Taipei University of Technology   IPC: B29C64/129 Abstract: An additive manufacturing (AM) system and method configured to fabricate a 3D printed object from a composition is provided. The AM system comprises a vat assembly having a vat, a pump, and a density control reservoir and an AM assembly having a blade system and a build system. The pump system pumps the composition from the vat, having a first and second fluid outlet and at least one perforated outlet extension attached thereto, to the density control reservoir and then back into the vat through an inlet conduit. The at least one perforated outlet extension has a tube attachment mechanism and at least one elongated perforated tube assembly communicating therewith. The blade system has a dispersing blade and cutting blade, dispersing the composition from the inlet conduit toward and throughout a central top level of the composition and cutting a top surface of the composition, respectively.
5
EP3784484A1
APPARATUS AND METHOD FOR FABRICATION WITH CURABLE RESINS BY EXTRUSION AND PHOTO CURING
Publication/Patent Number: EP3784484A1 Publication Date: 2021-03-03 Application Number: 19721442.2 Filing Date: 2019-04-11 Inventor: Thompson, Mary Kathryn   Assignee: General Electric Company   IPC: B29C70/58
6
US2021078254A1
OPTICAL CURING SYSTEM FOR 3D PRINTING
Publication/Patent Number: US2021078254A1 Publication Date: 2021-03-18 Application Number: 16/860,021 Filing Date: 2020-04-27 Inventor: Indyk, Denis   Dubov, Aleksei   Solonitsyn, Slava   Trushina, Anna   Starodubtsev, Dmitry   Assignee: Mighty Buildings, Inc.   IPC: B29C64/277 Abstract: An optical curing system for a large scale 3D printing system may include a light source housing, a light source, a mounting bracket, a light beam focusing subsystem, and a power source. The light source may be coupled to the light source housing. The mounting bracket may secure the light source housing to a rotary system on the 3D printer. The light beam focusing subsystem is attached to the light source housing. The power source may power the light source during its operation.
7
CN112638626A
增材制造三维物体的设备
Public
Publication/Patent Number: CN112638626A Publication Date: 2021-04-09 Application Number: 201980058166.X Filing Date: 2019-07-12 Inventor: 斯蒂芬·韩泽   鲍里斯·艾肯伯格   Assignee: CL产权管理有限公司   IPC: B29C64/277 Abstract: 通过对可通过能量束固结的构建材料(3)层进行连续分层选择性照射和固结来增材制造三维物体(2)的设备(1),其中,提供了照射装置(4),该照射装置(4)适于生成至少两个相干能量束(7),其中,照射装置(4)包括调制单元(5),该调制单元(5)适于将至少两个能量束(7)组合成组合能量束(8),并调节组合能量束(8)的至少一个组合束特性。
8
CN212920466U
三维造型装置
Grant
Publication/Patent Number: CN212920466U Publication Date: 2021-04-09 Application Number: 201921827784.X Filing Date: 2019-10-28 Inventor: 大嶋英司   Assignee: 康达智株式会社   IPC: B29C64/268 Abstract: 本实用新型提供简单、迅速地制造复制品的三维造型装置。一种三维造型装置,具有:光照射部,照射种类不同的第一激光和第二激光;受光部,接收从光照射部照射到物体的所述第一激光的反射光;计测部,基于反射光,对物体的形状进行计测;控制部,基于由计测部计测到的所述物体的形状,控制光照射部的第二激光对三维造型物的材料的照射,由此对三维造型物进行造型。
9
US2021046708A1
ARRANGEMENT FOR ADJUSTING A POWDER FLOW IN RELATION TO THE CENTRAL LONGITUDINAL AXIS OF AN ENERGY BEAM
Publication/Patent Number: US2021046708A1 Publication Date: 2021-02-18 Application Number: 16/969,272 Filing Date: 2019-02-13 Inventor: Riede, Mirko   Brueckner, Frank   Hemschik, Rico   Willner, Robin   Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.   TECHNISCHE UNIVERSITAET DRESDEN   IPC: B29C64/321 Abstract: An arrangement for adjusting a powder flow in relation to the central longitudinal axis of an energy beam for a working head which is formed for powder application welding. There is a device for the two-dimensional or three-dimensional alignment of the powder supply in relation to the central longitudinal axis of the energy beam in a plane oriented at right angles to the central longitudinal axis of the energy beam. From one side, a linear beam is directed to the region in which the particles of the powdery material meet one another. At right angles thereto, there is arranged an optical detector array for locally resolved detection of intensities connected to an electronic evaluation unit designed to determine the shape, size and/or length of an irradiated region in which locally resolved intensities which exceed a predefinable threshold have been detected with the optical detector array. The irradiated region reaches from the surfaces of particles which the laser beam strikes with reduced power during the adjustment as far as a sub-region of the irradiated region which is arranged in the direction of a workpiece surface of accelerated powdery particles, in which the particles heated by the laser beam move divergently.
10
EP3771551A1
METHOD FOR CALIBRATING A DEVICE FOR GENERATING A THREE-DIMENSIONAL OBJECT
Publication/Patent Number: EP3771551A1 Publication Date: 2021-02-03 Application Number: 20198574.4 Filing Date: 2016-12-20 Inventor: DomrÖse, Robert Achim   Wolf, Dominik   GÖth, Michael   Schmid, Ulrich   MittermÜller, Maximilian   Assignee: EOS GmbH Electro Optical Systems   IPC: B29C64/153 Abstract: Verfahren zum Kalibrieren einer Vorrichtung (1) zum Herstellen eines dreidimensionalen Objekts (2) durch schichtweises selektives Verfestigen von Aufbaumaterial (15) mit dem Schritt des Erzeugens eines im Wesentlichen periodischen ersten Modulationsmusters (101) in einem ersten Teilbereich (100) eines Baufeldes (8), dem Schritt des Erzeugens eines im Wesentlichen periodischen zweiten Modulationsmusters (201) in einem zweiten Teilbereich (200) des Baufeldes (8), wobei das erste Modulationsmuster (101) und das zweite Modulationsmuster (201) in der Überlappungszone (300) ein im Wesentlichen periodisches Überlagerungsmuster (301) ausbilden, dessen Periode größer ist als die Periode des ersten Modulationsmusters (101) und die Periode des zweiten Modulationsmusters (201), dem Schritt des Erfassens des Überlagerungsmusters (301) und dem Schritt des Bestimmens der Abweichung der Lage des Überlagerungsmusters (301) auf dem Baufeld (8) von einer Referenzlage.
11
CN112368132A
增材板制作系统及方法
Publication/Patent Number: CN112368132A Publication Date: 2021-02-12 Application Number: 112019000043266 Filing Date: 2019-08-20 Inventor: W·西弗斯   Assignee: 埃斯科绘图成像有限责任公司   IPC: B29C64/277 Abstract: 一种用于构建印刷板的过程通过:在基底上连续地沉积多个n层光敏聚合物;使用广域辐射源固化1至(n‑m)层中的每层;以及使用根据待由印刷板印刷的期望图像调制的小域辐射源选择性地固化(n‑m+1)层至n层。从(n‑m+1)至n层移除未固化的聚合物,并且利用去粘区域辐射源进一步固化所有层。还公开一种用于通过增材制造构建印刷板的系统,该系统包括印刷组件以及用于在基底和印刷组件之间提供相对运动的器件。组件包括一个或多个喷墨印刷头、至少一个广域辐射源以及小域辐射源。
12
US2021031450A1
APPARATUS FOR PREVENTING PHOTOCURING OF BIOMATERIAL IN DISCHARGE NOZZLE AND DISPENSER AND BIO 3D PRINTER INCLUDING THE SAME
Publication/Patent Number: US2021031450A1 Publication Date: 2021-02-04 Application Number: 16/778,997 Filing Date: 2020-01-31 Inventor: Choi, Jong Eon   Jeon, Kyoung Whee   Assignee: CLECELL Co., Ltd.   IPC: B29C64/277 Abstract: An apparatus for preventing photocuring of biomaterial in a discharge nozzle and in a dispenser of a bio 3D printer includes a driving unit for providing a driving force, a shutter member that receives the driving force from the driving unit and to move between a first position not covering the discharge nozzle and a second position covering at least the discharge nozzle in a reciprocating manner, and a control unit for controlling the discharge nozzle. The driving unit, the shutter member, the discharge nozzle, and the plurality of light sources constitute a head unit in an integrated manner. The head unit includes an end plane. The shutter member and a distal end of the discharge nozzle are positioned near a center of the end plane. The plurality of light sources are positioned on the end plane with the shutter member and the discharge nozzle therebetween.
13
EP3778071A1
SYSTEM AND METHOD FOR LARGE SCALE ADDITIVE MANUFACTURING
Publication/Patent Number: EP3778071A1 Publication Date: 2021-02-17 Application Number: 19191589.1 Filing Date: 2019-08-13 Inventor: Orbay, Raik   Assignee: Volvo Car Corporation   IPC: B22F3/105 Abstract: An additive manufacturing system capable of large-scale production. The additive manufacturing system comprises a pulsed laser arranged to emit coherent light towards a rotating reflecting element, wherein the rotating reflecting element is arranged to reflect a laser pulse towards a plurality of light-redirecting elements. Each light-redirecting element is further arranged to receive and redirect the laser pulse towards a work surface which may be based on one or more conveyor-belts. The raw material on the belt, such as a metal-based material for additive manufacturing, is supplied continuously to enable a ceaseless production line.
14
EP3797027A1
ADDITIVE PLATE MAKING SYSTEM AND METHOD
Publication/Patent Number: EP3797027A1 Publication Date: 2021-03-31 Application Number: 19758676.1 Filing Date: 2019-08-20 Inventor: Sievers, Wolfgang   Assignee: Esko-Graphics Imaging GmbH   IPC: B29C64/277
15
CN212603423U
一种3D打印机
Grant
Publication/Patent Number: CN212603423U Publication Date: 2021-02-26 Application Number: 202021940695.9 Filing Date: 2020-09-08 Inventor: 汪争光   陈慧敏   朱海林   Assignee: 江阴司特易生物技术有限公司   IPC: B29C64/106 Abstract: 本实用新型公开了一种3D打印机,其包括打印系统、控温系统和光照系统;其中,打印系统包括接收平台、运动导轨模块和至少一个打印模块;控温系统包括控温部件、控温平台和水冷模块;光照系统,包括设于打印头的外底面的第一光照装置和环设于接收平台的上表面外壁上的第二光照装置。本实用新型的3D打印机的打印系统可直接控制打印墨水的挤出或回抽,实现更加精密和稳定打印效果;控温系统实现了升降温控制,减少了控温系统对打印环境的影响;光照系统使得打印材料能够固化均一、充分,且实现了多种固化方式。本实用新型的3D打印机进一步集成创新,提供一种无分体式零配件、小型便捷、高度洁净、精准控制、功能多样的科研与临床用打印机。
16
US2021060645A1
Laser Sintering 3D Printing Thermal Compensation System and Method
Publication/Patent Number: US2021060645A1 Publication Date: 2021-03-04 Application Number: 16/558,385 Filing Date: 2019-09-03 Inventor: Jian, Yi-ming   Assignee: AIC RD Tech Co., Ltd.   IPC: B22F3/105 Abstract: A laser sintering 3D printing thermal compensation system is provided and includes a controller and a heating device and a temperature field sensing device respectively connected to the controller, in which the temperature field sensing device is configured to determine a detection result by detecting within a printing region, the detection result includes a high temperature region and a relatively low-temperature region, and the controller is configured to control the heating device to heat the relatively low-temperature region for conducting thermal compensation, thereby reducing the temperature difference between the high temperature region and the relatively low-temperature region, and overcoming drawbacks of conventional arts having inaccurate control of the temperature field, causing interface defects due to temperature unevenness, and, consequently, greatly reducing the printing quality.
17
CN212666711U
一种大画幅3D打印的高精度打印系统
Grant
Publication/Patent Number: CN212666711U Publication Date: 2021-03-09 Application Number: 202022248023.8 Filing Date: 2020-10-12 Inventor: 李清明   卫洁君   刘默晗   卢长礼   王蔚生   Assignee: 上海唯视锐光电技术有限公司   华东师范大学   IPC: B29C64/20 Abstract: 本实用新型的目的在于克服现有大画幅3D打印精度低的缺陷,提出一种大画幅3D打印的高精度打印系统,所述打印系统包括若干DLP光机、摄像机、样品台,所述样品台两侧边缘设有标尺,DLP光机和摄像机固定在同一支架上沿标尺方向同步移动,摄像机采集曝光范围的四个顶点延长线处的标尺刻度获得刻度信息,根据刻度信息计算DLP光机的移动距离。本实用新型设置多个DLP光机,多个光机拼接可在一定程度上增大打印尺寸,将DLP光机设置为沿一个方向运动,便于控制DLP光机移动的精度,减小打印误差。
18
CN111712373B
对用于生产三维工件的设备的辐照系统进行校准的装置和方法
Grant
Publication/Patent Number: CN111712373B Publication Date: 2021-04-02 Application Number: 201980012459.4 Filing Date: 2019-02-05 Inventor: 克里斯蒂亚娜·蒂尔   Assignee: SLM方案集团股份公司   IPC: B29C64/153 Abstract: 提出了一种对用于生产三维工件的设备(14)的辐照系统(12)进行校准的装置(10),该辐照系统(12)包括第一辐照单元(16)和第二辐照单元(24),第一辐照单元用于沿着第一操作轴线(20)将第一辐照束(18)选择性地辐照到辐照平面(22)上,第二辐照单元用于沿着第二操作轴线(28)将第二辐照束(26)选择性地辐照到辐照平面(22)上,其中,该装置(10)包括:控制单元(30),其适于控制第一辐照单元(16)以根据辐照图案(32)将第一辐照束(18)辐照到辐照平面(22)上,并适于控制第二辐照单元(24)以使第二操作轴线(28)相对于辐照平面(22)移位,使得第二操作轴线(28)穿过由第一辐照单元(16)产生的、到达辐照平面(22)上的辐照图案(32);和检测单元(34),其适于检测从辐照平面(22)上的碰撞点(36)的区域排放的处理排放物,第二辐照单元(24)的第二操作轴线(28)在该区域穿过辐照平面(22),并适于将指示检测到的处理排放物的信号输出到控制单元(30),并且其中,控制单元(30)还适于确定由第一辐照单元(16)产生的辐照图案(32)在辐照平面(22)上的位置(x1…n,y1…n);基于由检测单元(34)输出的信号确定由第一辐照单元(16)产生的辐照图案(22)和第二辐照单元(24)的第二操作轴线(28)之间的至少一个相交点(38)的位置(X’s1,Y’s1);以及基于由第一辐照单元(16)产生的辐照图案(32)的、所确定的位置(X1…n,Y1…n)和至少一个相交点的、所确定的位置(X’s1,Y’s1)对辐照系统(12)进行校准。
19
CN212603426U
基于LCD液晶显示屏的投影装置及打印机
Grant
Publication/Patent Number: CN212603426U Publication Date: 2021-02-26 Application Number: 202021386662.4 Filing Date: 2020-07-14 Inventor: 林泽航   黄立   邓阳   Assignee: 深圳市布尔三维技术有限公司   IPC: B29C64/124 Abstract: 本实用新型适用于3D打印技术领域,提供了一种基于LCD液晶显示屏的投影装置及打印机,投影装置包括从上到下的阵列点光源、阵列拼接菲涅尔透镜、第一菲涅尔透镜、凸透镜、第二菲涅尔透镜及LCD液晶显示屏;阵列点光源发射的光线透过阵列拼接菲涅尔透镜后光路传播方向垂直于阵列拼接菲涅尔透镜;透过阵列拼接菲涅尔透镜的光线在透过第一菲涅尔透镜后焦点聚焦于凸透镜上方,并在凸透镜焦距范围内,焦点经散射并透过凸透镜后聚光;第二菲涅尔透镜的平整面与凸透镜相对设置,透过凸透镜的光线透过第二菲涅尔透镜后垂直于第二菲涅尔透镜;LCD液晶显示屏与光固化材料液面的距离小于5cm。本实用新型能够在降低生产成本的前提下,提升产品打印成功率和效率。
20
CN108081602B
用于添加式地制造三维物体的方法
Grant
Publication/Patent Number: CN108081602B Publication Date: 2021-02-02 Application Number: 201710768587.4 Filing Date: 2017-08-31 Inventor: T·德乐   P·庞蒂勒-许穆拉   A·波普   Assignee: CL产权管理有限公司   IPC: B29C64/153 Abstract: 本发明涉及一种用于通过借助于至少一个能量束依次逐层地选择地固化建造材料(9)层而添加式地制造三维物体(6)的方法,其中,依次逐层地选择地固化建造材料(9)基于描述要添加式地制造的三维物体(6)的数据组实施,其中,被设置用于烧结和/或熔化或熔穿的建造材料区域在低于建造材料(9)的固化温度的温度范围内被加热,其中,这个或这些建造材料区域的加热通过至少一个加热射束(17)实施,该至少一个加热射束或者分区域地包围至少一个被用于熔融、熔化或熔穿的主射束(18)或者在主射束(18)之前或之后行进,其中,主射束(18)和加热射束(17)一起同步地在建造材料(9)的表面上方被引导。
Total 24 pages