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    • 8. 发明专利
    • Reconfigurable nozzle for material deposition
    • GB2568150A
    • 2019-05-08
    • GB201815039
    • 2018-09-14
    • BOEING CO
    • SAMUEL HARRISONNICK S EVANSFARAON TORRESMICHAEL P KOZARMARK S WILENSKI
    • B29C64/205B29C48/25B29C48/30B29C64/118B29C64/20B29C64/209B33Y30/00
    • An extruder 10 for depositing a material includes an extruder body 14 including an extruder drive system 16 and defining a body axis, and an extruder nozzle. The extruder nozzle 12 includes a nozzle tip 20 defining an exit orifice 21, a reconfigurable arm 22 defining a material path in fluid communication with the exit orifice, the reconfigurable arm including a proximal end 25 coupled to the extruder body and coaxial with the body axis, and a distal end 27 coupled to the nozzle tip, and a plurality of actuators 30 operatively associated with the reconfigurable arm and configured to move the reconfigurable arm between an initial configuration, in which the distal end of the reconfigurable arm is coaxial with the body axis, to a displaced configuration. In the displaced configuration, the distal end of the reconfigurable arm is at least one of positioned offset from the body axis and oriented at an angle relative to the body axis. The plurality of actuators may include at least three servo actuators, which can include servo linkages 32 connecting each of servo actuators to the nozzle tip. In another embodiment, the extruder 112 may be of an articulated type, and may include a reconfigurable arm 122 having articulating segments 129, actuators 130 operatively coupled to at least one arm segment 129 using tension wires 132, each arm segment pivotably coupled to at least one other arm segment to permit rotation in an associated discrete rotational arc. A system further includes a controller. For example for use in depositing industrial materials (e.g., sealants), additively manufacture a part (three-dimensional (3-D) printing).