公开(公告)号：US12134221B1

公开(公告)日：2024-11-05

申请号：US18777503

申请日：2024-07-18

Applicant: NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS

Inventor： Wenzhe Song ,  Congze Fan ,  Jinghua Zheng ,  Yiwei Chen ,  Jingxuan Wang ,  Zhongde Shan

IPC: B29C48/05 ,  B29B15/14 ,  B29C48/28 ,  B29C48/88 ,  B29C48/885 ,  B29C64/314 ,  B29C70/52 ,  B29K105/08 ,  B29K307/04 ,  B33Y40/10 ,  B33Y70/10 ,  B29K71/00

Abstract: An on-orbit composite filament forming device for space 3D printing includes 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. The replaceable resin filament rotary wrapping module wraps a resin filament on a surface of a carbon fiber by circumferential rotation and is provided with an active unwinding reel placed on a circular rail centered on the carbon fiber; the melt preheating chamber is used for melting resin to wrap the surface of the fiber, and is equipped with a lifting device for automatic opening and closing; the curved channel impregnation chamber is formed with a wedge-shaped high-pressure impregnation zone by mutual extrusion of upper and lower pressure blocks, thereby improving the quality of fiber impregnation.