Infrared auxiliary heating continuous fiber thermoplastic composite 3D printing head

• Main Authors: YOU CHANGHAO, FU KUNKUN, ZHANG HULIANG, LIU WANYI, LI YAN, ZHANG ZHONGSEN, LUO TAO
• Format: Patent
• Language: Chinese; English
• Published: 01.12.2023
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention relates to an infrared auxiliary heating continuous fiber thermoplastic composite 3D printing head. The infrared auxiliary heating continuous fiber thermoplastic composite 3D printing head comprises a top frame connected with a 3D printer, a fiber feeding module, a printing extrusion module and an infrared heat radiation module used for auxiliary heating, wherein the fiber feeding module and the printing extrusion module are sequentially arranged in the feeding direction of continuous fiber tows. A large amount of heat is radiated to a deposited layer and a printing layer fiber matrix through the infrared heat radiation module, the deposited layer can be preheated, the temperature gradient of the printing layer can be reduced, and then the interlayer performance and the mechanical performance of a printed product are improved; and protective gas can be introduced in the printing process, so that the high-temperature degradation behavior and the oxidation behavior of the thermoplastic matrix are