3D printing extruder

• Main Authors: LIU HUILIN, TANG JINGKE, YAN LUOLIN, AO DANJUN, CHEN CHUN
• Format: Patent
• Language: Chinese; English
• Published: 22.02.2022
• 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 utility model relates to the technical field of 3D printing, and discloses a 3D printing extruder, which comprises an extrusion box body, an extrusion cavity, a 3D printer and a 3D printer, the extrusion motor is mounted on the extrusion box body and is used for providing extrusion power; the transmission assembly is arranged in the extrusion cavity and comprises a first worm, a second worm, a first worm gear and a second worm gear, the first worm and the second worm are driven by the extrusion motor to rotate synchronously, the rotating direction of the second worm is opposite to that of the first worm, the first worm gear is rotationally connected to the inner wall of the extrusion cavity and meshed with the first worm, and the second worm gear is rotationally connected to the inner wall of the extrusion cavity and meshed with the second worm. The second worm gear is rotationally connected to the inner wall of the extrusion cavity and is meshed with the second worm; the first extrusion gear is connected