The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2026
Filed:
Jul. 23, 2022
Nanjing University of Aeronautics and Astronautics, Nanjing, CN;
Jinghua Zheng, Nanjing, CN;
Zhongde Shan, Nanjing, CN;
Congze Fan, Nanjing, CN;
Yiwei Chen, Nanjing, CN;
Wenzhe Song, Nanjing, CN;
Jingxuan Wang, Nanjing, CN;
NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS, Nanjing, CN;
Abstract
A composite filament melt impregnation device with an automatic lifting channel for additive manufacturing includes a mechanical lifting device, a heating device, a curved resin impregnation channel, a filament guide block, a single screw extruder, a replaceable combination die nozzle, and a resin riser. The composite filament melt impregnation device can significantly improve the efficiency of replacing filaments and treating broken filaments in a forming process of continuous fiber filaments, reduce the operation difficulty of a production process, and ensure the safety of operators. The design of the resin riser can achieve slight dynamic adjustment of pressure in a melt cavity in the production process, improve the stability of product quality, and ultimately achieve continuous production and rapid replacement of high-performance continuous fiber composites.