3D printer with replaceable spray head

• Main Authors: HUANG SHAOJIE, LIU DONGTING, HUANG ZHIHAI, ZHOU ZIYI, LI YANLING, QIN WEIFENG, LI BINGBING
• Format: Patent
• Language: Chinese; English
• Published: 22.11.2019
• 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 provides a 3D printer with a replaceable nozzle. The 3D printer comprises a 3D printer body and a purification box, the purifying box is fixedly mounted at the top of the 3D printerbody; the rear side of the 3D printer body is connected with a power line. A printing head is arranged in the 3D printer body. The printing head comprises a printing head main body, a heating block and a spray head; a Teflon pipe is arranged in the printing head main body; the bottom of the Teflon pipe is fixedly sleeved with a throat pipe. A convex through hole is formed in the heating block; theheating block is fixedly arranged at the bottom of the throat pipe in a sleeving manner through the convex through hole; a heating pipe is fixedly embedded in the inner side wall of the convex through hole, a cavity is formed in the heating block, a thermistor is installed in the cavity, a connecting pipe is fixedly arranged at the top of the spray head, and the 3D printer with the replaceable spray head is reasonable in