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    Three dimensional printing
    35.
    发明授权
    Three dimensional printing 有权
    三维打印

    公开(公告)号：US09149988B2

    公开(公告)日：2015-10-06

    申请号：US14333881

    申请日：2014-07-17

    Applicant: MarkForged, Inc.

    Inventor： Gregory Thomas Mark ,  Antoni S. Gozdz

    IPC: B29C67/00 ,  B29C70/20 ,  B29K77/00

    CPC classification number: B29C64/106 ,  B29C64/393 ,  B29C70/20 ,  B29K2077/10 ,  B29K2307/04

    Abstract: Various embodiments related to three dimensional printers, and reinforced filaments, and their methods of use are described. In one embodiment, a void free reinforced filament is fed into an conduit nozzle. The reinforced filament includes a core, which may be continuous or semi-continuous, and a matrix material surrounding the core. The reinforced filament is heated to a temperature greater than a melting temperature of the matrix material and less than a melting temperature of the core prior to drag the filament from the conduit nozzle.

    Abstract translation: 描述了与三维打印机和增强长丝相关的各种实施例及其使用方法。 在一个实施例中，将无空隙的增强细丝送入导管喷嘴。 增强长丝包括可以是连续或半连续的芯和围绕芯的基体材料。 在将细丝从导管喷嘴拖下来之前，将增强的长丝加热到大于基体材料的熔融温度的温度并小于芯的熔化温度。

    SYSTEMS AND METHODS FOR BLOCKAGE REMOVAL IN THREE-DIMENSIONAL PRINTERS
    36.
    发明申请
    SYSTEMS AND METHODS FOR BLOCKAGE REMOVAL IN THREE-DIMENSIONAL PRINTERS 有权

    公开(公告)号：US20220032546A1

    公开(公告)日：2022-02-03

    申请号：US16941788

    申请日：2020-07-29

    Applicant: MARKFORGED, INC.

    Inventor： Bennett McClelland Wilson ,  Joseph Roy-Mayhew ,  Christopher Hoffman ,  Antoni S. Gozdz

    IPC: B29C64/386 ,  B29C64/321 ,  B29C64/35 ,  B29C64/209 ,  B33Y10/00 ,  B33Y50/00 ,  B33Y30/00

    Abstract: Methods of printing using three dimensional printers are disclosed. The method includes feeding a printable material through a linear feed mechanism to a print head, detecting the printable material is jammed in the three-dimensional printer, and operating, in response to detecting that the printable material is jammed, the three-dimensional printer in a jam clearing mode. The jam clearing mode includes advancing a drive component of the linear feed mechanism, retracting the drive component of the linear feed mechanism, and repeating the advancing and retracting of the drive component of the linear feed mechanism. Three-dimensional printing systems are also disclosed. A three-dimensional printing system includes a print head, a linear feed mechanism operatively coupled to the print head, and a controller operatively coupled to the three-dimensional printing system.

    APPARATUS FOR FIBER REINFORCED ADDITIVE MANUFACTURING
    38.
    发明申请
    APPARATUS FOR FIBER REINFORCED ADDITIVE MANUFACTURING 审中-公开

    公开(公告)号：US20200324461A1

    公开(公告)日：2020-10-15

    申请号：US16840868

    申请日：2020-04-06

    Applicant: MARKFORGED, INC.

    Inventor： Gregory Thomas Mark ,  Antoni S. Gozdz

    IPC: B29C64/118 ,  B29C64/321 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/00 ,  B29C64/295 ,  B29C64/209 ,  B29C64/393

    Abstract: According to one aspect, embodiments herein provide a 3-D printer comprising a composite filament supply, a build platen, a print head comprising a composite filament ironing tip and a heater, a plurality of actuators that move the print head and the build platen relative to one another in three degrees of freedom at a printing rate, at least one linear feed mechanism that advances the composite filament at a feed rate and drives the composite filament into the print head to deposit the composite filament, and a controller configured to operate the heater to heat the composite filament ironing tip to flow matrix material among axial fiber strands within the composite filament and operate the plurality of actuators to press the composite filament ironing tip against the composite filament and reshape the composite filament against one of the build platen and a composite filament previously deposited upon the build platen.

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