Feed housing purge system
    3.
    发明授权

    公开(公告)号:US11472108B1

    公开(公告)日:2022-10-18

    申请号:US17513125

    申请日:2021-10-28

    摘要: An additive manufacturing apparatus includes a material container having a hollow interior configured to receive a material and an extruder connected below the material container to receive the material from the material container. The additive manufacturing apparatus includes a material removal device including an actuator configured to activate the material removal device to dislodge retained material from within the hollow interior of the material container and a drain passage configured to receive the dislodged material and guide the material to an exterior of the additive manufacturing apparatus.

    Apparatus and methods for additive manufacturing at ambient temperature

    公开(公告)号:US10889058B2

    公开(公告)日:2021-01-12

    申请号:US16677280

    申请日:2019-11-07

    发明人: Scott G. Vaal

    摘要: An exemplary additive manufacturing system may include an extruder having an opening dimensioned to receive a material. The extruder also may have a barrel and a screw within the barrel. The screw may have a diameter ranging between about 20 mm and about 150 mm and the barrel extends along a longitudinal axis. The system may include one or more heaters positioned along at least a portion of the barrel. As the material passes through the barrel, the one or more heaters may at least partially melt the material. The system may further include a gear pump in fluid communication with the barrel for receiving the at least partially melted material. Additionally, the system may include a nozzle in fluid communication with the gear pump for depositing the at least partially melted material. The system also may include a vertical worktable.