3D printer sprayer with rotation switching function

• Main Authors: SUN HUICHAO, XU MINGXU, YAN LONGWEI, WANG XIANLI
• Format: Patent
• Language: Chinese; English
• Published: 28.09.2016
• 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 discloses a 3D printer sprayer with a rotation switching function in order to solve the problem that a 3D printer is low in printing efficiency and troublesome in replacing of a spray nozzle of an extruder. The 3D printer sprayer comprises a fixed seat (1), a heating bar (2), a thermocouple (3), a threaded stop ring (4), spray nozzles and a rotating seat (6). The spray nozzles comprise the first spray nozzle (5), the second spray nozzle, the third spray nozzle and the fourth spray nozzle. The heating bar (2) and the thermocouple (3) are installed in a heating bar installing hole (13) and a thermocouple installing hole (11) of the fixed seat (1) correspondingly. The threaded stop ring (4) enables the rotating seat (6) to be fixed to the fixed seat (1). The threaded stop ring (4) is in threaded connection with the fixed seat (1). Four limiting steel balls (17) on the rotating seat (6) are matched with four limiting grooves formed in the fixed seat (1). The first spray nozzle (5), the second spray