US 12,134,221 B1
On-orbit composite filament forming device for space 3D printing
Wenzhe Song, Nanjing (CN); Congze Fan, Nanjing (CN); Jinghua Zheng, Nanjing (CN); Yiwei Chen, Nanjing (CN); Jingxuan Wang, Nanjing (CN); and Zhongde Shan, Nanjing (CN)
Assigned to NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS, Nanjing (CN)
Filed by NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS, Nanjing (CN)
Filed on Jul. 18, 2024, as Appl. No. 18/777,503.
Application 18/777,503 is a continuation of application No. PCT/CN2024/079232, filed on Feb. 29, 2024.
Claims priority of application No. 202310195108.X (CN), filed on Mar. 3, 2023.
Int. Cl. B29C 48/05 (2019.01); B29B 15/14 (2006.01); B29C 48/28 (2019.01); B29C 48/88 (2019.01); B29C 48/885 (2019.01); B29C 64/314 (2017.01); B29C 70/52 (2006.01); B29K 105/08 (2006.01); B29K 307/04 (2006.01); B33Y 40/10 (2020.01); B33Y 70/10 (2020.01); B29K 71/00 (2006.01)
CPC B29C 48/05 (2019.02) [B29B 15/14 (2013.01); B29C 48/28 (2019.02); B29C 48/885 (2019.02); B29C 48/911 (2019.02); B29C 64/314 (2017.08); B29C 70/523 (2013.01); B29C 70/525 (2013.01); B33Y 40/10 (2020.01); B33Y 70/10 (2020.01); B29K 2071/00 (2013.01); B29K 2105/08 (2013.01); B29K 2307/04 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An on-orbit composite filament forming device for space 3D printing, comprising: a constant tension unwinding module, a replaceable resin filament rotary wrapping module, a melt preheating chamber, a curved channel impregnation chamber, a variable aperture resin recovery device, a heat protective housing, a convective cooling device, a traction device, and a winding device arranged sequentially, wherein the melt preheating chamber, the curved channel impregnation chamber, and the variable aperture resin recovery device are located in the heat protective housing; the replaceable resin filament rotary wrapping module comprises at least one active unwinding reel placed on a circular rail centered on a carbon fiber; a first metal scraper opening and closing mechanism, a second metal scraper opening and closing mechanism, and a third metal scraper opening and closing mechanism are provided sequentially inside the variable aperture resin recovery device; a circumferential heating resistor is provided in a housing of the variable aperture resin recovery device, and a lateral push device is provided at an upper part of the housing of the variable aperture resin recovery device.