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1151 条记录 (耗时 0.038 秒)

    一种五轴联动3d打印机
    1.
    发明申请
    一种五轴联动3d打印机 审中-公开

    公开(公告)号：WO2023087715A1

    公开(公告)日：2023-05-25

    申请号：PCT/CN2022/101703

    申请日：2022-06-28

    申请人： 无锡有田五维增材科技有限公司

    发明人： 肖国栋 ,  余谦

    IPC分类号： B29C64/20 ,  B29C64/232 ,  B29C64/236 ,  B29C64/386 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/00 ,  B33Y50/02

    摘要： 一种五轴联动3d打印机，涉及3D打印机领域。该装置中基材驱动单元用于驱动控制基材在基座上进行旋转运动；喷头驱动单元用于在水平和竖直方向上控制3D打印机的喷头的位置；扫描单元用于扫描拍摄基材的运动轨迹，并将运动轨迹信息传输至电控系统中；电控系统用于收集扫描单元的信息并控制喷头驱动单元、基材驱动单元的运动。该装置实现了在x、y、z轴方向上精确控制喷头的位置，且将转台放置在基座的凹槽内部，且使用梯形摆臂，使得旋转中心低于摆臂旋转中心，降低了转台的高度，从而降低了驱动装置整体的高度，并且也降低了成本。

    光造形装置および造形物の製造方法
    3.
    发明申请
    光造形装置および造形物の製造方法 审中-公开

    公开(公告)号：WO2023084930A1

    公开(公告)日：2023-05-19

    申请号：PCT/JP2022/035428

    申请日：2022-09-22

    申请人： 株式会社ＪＶＣケンウッド

    发明人： ▲高▼田　裕之 ,  中迫　雅弥

    IPC分类号： B29C64/245 ,  B29C64/124 ,  B29C64/232 ,  B29C64/255 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02

    摘要： 光造形装置（１０）は、光硬化性樹脂（１）を貯留して、底面に光透過プレート（１４）が設けられた造形槽（１１）と、光硬化性樹脂（１）を硬化させる光（Ｌ）を照射する光照射部（２０）と、造形槽（１１）に対して昇降可能なプラットホーム（１２）と、筒状に形成され、プラットホーム（１２）と協働して気密な空間（３）を形成する隔壁（１３）と、隔壁（１３）の下面（１３Ａ）および空間（３）の下面と光透過プレート（１４）との間に所定厚みの光硬化性樹脂層を形成する昇降制御部（３１）と、造形物（２）の所定高さ位置の断面形状に対応する光（Ｌ）を光硬化性樹脂層に照射させて硬化層を形成する照射制御部（３２）と、を備える。

    HIGH FIDELITY 3D PRINTING THROUGH COMPUTED AXIAL LITHOGRAPHY
    4.
    发明申请
    HIGH FIDELITY 3D PRINTING THROUGH COMPUTED AXIAL LITHOGRAPHY 审中-公开

    公开(公告)号：WO2023081404A1

    公开(公告)日：2023-05-11

    申请号：PCT/US2022/049028

    申请日：2022-11-04

    申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

    发明人： TOOMBS, Joseph ,  LI, Chi Chung ,  TAYLOR, Hayden ,  BHATTACHARYA, Indrasen ,  ZHANG, Jingzhao ,  BANSAL, Vishal ,  SHAN, Ingrid

    IPC分类号： B29C64/386 ,  B29C64/393 ,  B33Y50/00 ,  B33Y50/02 ,  B29C64/10

    摘要： A system and method of producing a three-dimensional object are provided. The method includes providing a volume of radiation-reactive material; illuminating the radiation-reactive material with patterned radiation such that a portion of the volume of radiation-reactive material corresponding to the three-dimensional object reacts to form the three-dimensional object and a remaining portion remains unreacted; and removing the remaining portion of the radiation-reactive material to provide the three-dimensional object. The illuminating the radiation-reactive material with patterned radiation is based on a minimization of deviations of an energy deposition density below a first threshold in an object zone, an unconstrained buffer zone surrounding the object zone, and a minimization of deviations of energy deposition density above a second threshold in a zone surrounding the buffer zone. The object zone corresponds to a location of the three-dimensional object.

    VERFAHREN ZUR HERSTELLUNG WENIGSTENS EINES BAUTEILS
    5.
    发明申请
    VERFAHREN ZUR HERSTELLUNG WENIGSTENS EINES BAUTEILS 审中-公开

    公开(公告)号：WO2023078750A1

    公开(公告)日：2023-05-11

    申请号：PCT/EP2022/079889

    申请日：2022-10-26

    申请人： ARBURG GMBH + CO KG

    发明人： NEFF, Martin ,  HELLSTERN, Uwe

    IPC分类号： B29C64/118 ,  B29C64/386 ,  B29C64/393 ,  B33Y50/00 ,  B33Y50/02

    摘要： Bei einem Verfahren zur Herstellung mittels eines additiven Fertigungsverfahrens oder eines 3D-Druckprozesses wenigstens eines Bauteils aufweisend wenigstens zwei Baumaterialen mit je einer kritischen Verweilzeit T_x_max werden Daten zur Herstellung des Bauteils bereitgestellt und das Bauteil in wenigstens einen Bauabschnitt mit entsprechenden Bauabschnittinformationen zerlegt. Nach einem Äbleiten wenigstens eines Baumaterialvolumens und wenigstens einer mittleren Äustragsrate pro Bauabschnitt aus den Bauabschnittinformationen wird wenigstens eine Bauzeit pro Bauabschnitt und wenigstens eine resultierende Verweilzeit t_x je Baumaterial aus dem Baumaterialvolumen und der Äustragsrate berechnet. Die resultierenden Verweilzeiten t_x werden mit den jeweiligen kritischen Verweilzeiten T_x_max der entsprechenden Baumaterialien abgeglichen. Dadurch, dass wenigstens eine Anpassung der Daten, sodass die jeweiligen resultierenden Verweilzeiten t_x unter den jeweiligen kritischen Verweilzeiten T_x_max der entsprechenden Baumaterialien liegen vorgenommen wird, wenn wenigstens eine resultierende Verweilzeit t_x die jeweilige kritische Verweilzeit T_x_max des entsprechenden Baumaterials überschreitet ergibt sich eine Optimierung in Hinsicht auf den Verbrauch des benötigten Baumaterials und der Qualität des Bauteils.

    METHOD AND SYSTEM FOR FABRICATING A POROUS STRUCTURE BASED ON EXTRUSION-BASED ADDITIVE MANUFACTURING, AND POROUS STRUCTURE THEREOF
    7.
    发明申请
    METHOD AND SYSTEM FOR FABRICATING A POROUS STRUCTURE BASED ON EXTRUSION-BASED ADDITIVE MANUFACTURING, AND POROUS STRUCTURE THEREOF 审中-公开

    公开(公告)号：WO2023069019A2

    公开(公告)日：2023-04-27

    申请号：PCT/SG2022/050741

    申请日：2022-10-18

    申请人： SINGAPORE UNIVERSITY OF TECHNOLOGY AND DESIGN

    发明人： NG, Jian Yi Mervin ,  HASHIMOTO, Michinao

    IPC分类号： B29C64/393 ,  B29C64/118 ,  B33Y50/02 ,  B33Y10/00

    摘要： A method of fabricating a porous structure based on extrusion-based additive manufacturing is provided. The method includes: controlling a print head of an extruder to move along a print path for extruding a material along the print path on a print bed for fabricating the porous structure; and controlling an extrusion flow rate of the extruder, while the print head is being controlled to move along the print path for extruding the material, for forming a plurality of pores of the porous structure. In particular, for each pore of the plurality of pores, the above-mentioned controlling the extrusion flow rate includes adjusting the extrusion flow rate with respect to a first section of the print path to form a first extruded material portion along the first section of the print path and adjusting the extrusion flow rate with respect to a second section of the print path to form a second extruded material portion along the second section of the print path, the second extruded material portion formed being adjacent to and opposing the first extruded material portion formed, such that a space is formed therebetween constituting the pore. A corresponding system for fabricating a porous structure is also provided, as well as the porous structure fabricated.

    RECOATING SYSTEM
    8.
    发明申请
    RECOATING SYSTEM 审中-公开

    公开(公告)号：WO2023064488A1

    公开(公告)日：2023-04-20

    申请号：PCT/US2022/046597

    申请日：2022-10-13

    申请人： ALIGN TECHNOLOGY, INC.

    发明人： MEENAKSHISUNDARAM, Viswanath ,  DORFINGER, Peter ,  CHOUDHARY, Umesh Upendra ,  COLE, Michael Christopher

    IPC分类号： B29C64/124 ,  B29C64/214 ,  B29C64/223 ,  B29C64/227 ,  B29C64/295 ,  B29C64/35 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B29C64/255

    摘要： In some embodiments, a system includes a carrier film (260), a first blade (270A) configured to form a layer of resin on the carrier film, a second blade (270B) configured to prevent printed features from contacting the first blade, and a build platform (120), where a portion of the layer of resin is to be added to an object being formed on the build platform. In some embodiments, a system includes a build platform and one or more blades configured to provide layers of resin to form an object on the build platform, where at least a first blade is configured to vibrate to reduce viscosity of the layers of resin. In some embodiments, a system includes a partial enclosure (280) configured to hold resin, one or more structures configured to at least partially cover the resin to prevent evaporation, and a build platform configured to support an object being formed from the resin.

    3D PRINTED MATERIAL HAVING COLOR AND/OR REFLECTIVITY CONTROL
    9.
    发明申请
    3D PRINTED MATERIAL HAVING COLOR AND/OR REFLECTIVITY CONTROL 审中-公开

    公开(公告)号：WO2023061791A1

    公开(公告)日：2023-04-20

    申请号：PCT/EP2022/077462

    申请日：2022-10-03

    申请人： SIGNIFY HOLDING B.V.

    发明人： VAN BOMMEL, Ties ,  HIKMET, Rifat, Ata, Mustafa

    IPC分类号： B29C64/118 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/10 ,  B33Y80/00

    摘要： The invention provides a method for producing a 3D item (1) by means of fused deposition modelling using a fused deposition modeling 3D printer (500) comprising a printer nozzle (502), wherein the 3D item (1) comprises one or more layers (322) of 3D printed material (202), the method comprising a 3D printing stage comprising:- providing 3D printable material (201) to the printer nozzle (502), wherein:- the 3D printable material (201) comprises 3D printable core material (2101) and 3D printable first shell material (2201); - the 3D printable core material (2101) comprises a core thermoplastic material (2111) having a core thermoplastic material melting temperature Tmc1; - the 3D printable first shell material (2201) comprises a first shell thermoplastic material (2211) having a first shell thermoplastic material melting temperature Tms1; wherein Tmc1>Tms1;- the 3D printable first shell material (2201) has a 3D printable first shell material optical property, the 3D printable core material (2101) has a 3D printable core material optical property different from said 3D printable first shell material optical property; - controlling a temperature Tdm of the 3D printable material (201) in the printer nozzle (502) according to a scheme wherein during a first time period tp1: Tmc1> Tdm >Tms1applies and wherein during a second time period tp2: Tdm > Tmc1 applies.