The present invention relates to the technical field of 3D printing equipment, in particular to a 3D printing nozzle assembly capable of mixing materials, comprising an extruder. The right end of the top surface of the extruder is connected with PLA consumables, and the left end of the top surface of the extruder is connected with TPU consumables. Two extrusion rods are arranged in a left-right symmetrical structure inside the extruder, two springs are sleeved on the extrusion rods in an up-down symmetrical structure, and two relays are sleeved on the outer ends of the extrusion rods in a left-right symmetrical structure. In the present invention, mixed printing is performed using PLA and TPU consumables, and the rigidity and toughness are between those of PLA and TPU, so that the material is neither too hard nor too soft, and can be used for producing parts such as waist support plates. A chain extender tube facilitates the entry of chain extender into the Y-shaped throat, effectively improving the compatibility of the two materials during mixing and significantly enhancing the performance of parts. The springs on the upper and lower sides of the extrusion rods improve the smoothness of material discharge from the nozzle rod and ensure stable discharging.
Area Code: CN
Application Number: CN202110892629.1
