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    Three-dimensional shaping apparatus and control method for three-dimensional shaping apparatus
    2.
    发明授权
    Three-dimensional shaping apparatus and control method for three-dimensional shaping apparatus 有权

    公开(公告)号：US11534976B2

    公开(公告)日：2022-12-27

    申请号：US16690342

    申请日：2019-11-21

    申请人： Seiko Epson Corporation

    发明人： Kohei Yuwaki ,  Koichi Saito ,  Kazuhide Nakamura

    IPC分类号： G05B19/18 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/35 ,  B33Y40/00 ,  B29C64/209

    摘要： A three-dimensional shaping apparatus includes a melting section providing a shaping material to a channel, a nozzle ejecting the shaping material to a shaping region of a shaping table, an ejection-amount adjusting mechanism adjusting an amount of the shaping material from the nozzle, a suction member sucking the shaping material in the channel, a memory configured to store a program, and a processor configured to execute the program so as to control the three-dimensional shaping apparatus. The processor is configured to stop the ejection of the shaping material and, thereafter, prior to resumption of the ejection of the shaping material, execute material purge processing for discharging the shaping material remaining in the melting section to a region different from the shaping region. The suction member is located closer to the nozzle than the ejection-amount adjusting mechanism in the first channel.

    Plasticization device, three-dimensional shaping device, and injection molding device
    4.
    发明授权
    Plasticization device, three-dimensional shaping device, and injection molding device 有权

    公开(公告)号：US11485061B2

    公开(公告)日：2022-11-01

    申请号：US17004307

    申请日：2020-08-27

    申请人： Seiko Epson Corporation

    发明人： Kohei Yuwaki ,  Kazuhide Nakamura ,  Koichi Saito

    IPC分类号： B29C45/46 ,  B29C64/209 ,  B29C64/314 ,  B33Y30/00 ,  B22F3/22 ,  B28B1/24 ,  B28B1/00 ,  B28B17/02 ,  B33Y40/10

    摘要： A plasticization device includes: a rotor rotated by a drive motor and having a groove forming surface in which a first groove portion is formed along a rotation direction; a rotor case configured to accommodate the rotor; a barrel facing the groove forming surface and having a through hole; a first heating unit configured to heat the rotor or the barrel; and a cooling mechanism configured to cool a side surface of the rotor. In the plasticization device, a material supplied between the first groove portion and the barrel is plasticized by rotation of the rotor and heating by the first heating unit to flow out from the through hole, and the side surface of the rotor has a material guiding port configured to guide the material to the first groove portion, and a second groove portion configured to feed the material supplied between the rotor and the rotor case to the material guiding port.

    Manufacturing method and forming apparatus of three-dimensional formed object
    5.
    发明授权
    Manufacturing method and forming apparatus of three-dimensional formed object 有权

    公开(公告)号：US11292183B2

    公开(公告)日：2022-04-05

    申请号：US16280103

    申请日：2019-02-20

    申请人： Seiko Epson Corporation

    发明人： Shunsuke Mizukami ,  Kazuhide Nakamura ,  Koichi Saito ,  Kohei Yuwaki

    IPC分类号： B29C64/106 ,  B29C64/209 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y10/00

    摘要： In a manufacturing method of a three-dimensional formed object, the method includes a first discharging in which a forming material is continuously discharged from a nozzle while causing a position of the nozzle to change with respect to the forming table in a first direction which is perpendicular to a top surface of the forming table to cause the forming material to be deposited in the first direction, a second discharging in which the forming material is continuously discharged from the nozzle while changing the position of the nozzle with respect to the forming table in a second direction which is parallel to the top surface of the forming table to dispose the forming material along the second direction, and repeating in which the first discharging and the second discharging are repeated.

    Three-dimensional shaping apparatus
    6.
    发明授权
    Three-dimensional shaping apparatus 有权

    公开(公告)号：US10994482B2

    公开(公告)日：2021-05-04

    申请号：US16722539

    申请日：2019-12-20

    申请人： SEIKO EPSON CORPORATION

    发明人： Kohei Yuwaki ,  Koichi Saito ,  Kazuhide Nakamura

    IPC分类号： B29C64/209 ,  B29C64/245 ,  B29C64/295 ,  B29C64/227 ,  B33Y30/00

    摘要： A three-dimensional shaping apparatus includes a discharge mechanism, a tilting mechanism, and a control portion. the discharge mechanism includes a supply flow path, a first branch flow path, a second branch flow path, a coupling portion coupling the supply flow path with the first branch flow path and the second branch flow path, a first nozzle communicating with the first branch flow path, a second nozzle communicating with the second branch flow path, and a valve mechanism, a central axis of the first nozzle and a central axis of the second nozzle are separated from each other as going toward the table, and the control portion controls the valve mechanism to switch between a first state in which the supply flow path and the first branch flow path communicate with each other and the supply flow path and the second branch flow path are blocked from each other and a second state in which the supply flow path and the second branch flow path communicate with each other and the supply flow path and the first branch flow path are blocked from each other and controls the tilting mechanism so that in the first state, the first nozzle is brought closer to the table than the second nozzle and in the second state, the second nozzle is brought closer to the table than the first nozzle.