HEATED NOZZLE ASSEMBLY FOR A THREE-DIMENSIONAL PRINTER HEAD INCLUDING FINS IN SHANK BARREL AND NOZZLE TIP

• Main Authors: MACNEISH, William Jack, EUAN WALDESTRAND, Iris Gisey, EICHELE, Chad, MIZUNO, Yasushi
• Format: Patent
• Language: English; French
• Published: 26.10.2023
• 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

A heated nozzle assembly for a three-dimensional printer includes a shank defining a feed end and a first internal flow passage, where the feed end is fluidly coupled to the first internal flow passage. The heated nozzle assembly also includes a shank barrel coupled to the shank that includes a second internal flow passage. The shank barrel defines an inner surface and one or more fins that extend along and project radially outward from the inner surface of the second internal flow passage and towards a center axis of the heated nozzle assembly. The second internal flow passage of the shank barrel is fluidly coupled to the first internal flow passage of the shank. L'invention concerne un ensemble buse chauffé destiné à une imprimante tridimensionnelle comprenant une tige définissant une extrémité d'alimentation et un premier passage d'écoulement interne, l'extrémité d'alimentation étant en communication fluidique avec le premier passage d'écoulement interne. L'ensemble buse chauffé comprend également un corps de tige accouplé à la tige qui comprend un second passage d'écoulement interne. Le corps de tige définit une surface interne et une ou plusieurs ailettes qui s'étendent le long et font saillie radialement vers l'extérieur à partir de la surface interne du second passage d'écoulement interne et vers un axe central de l'ensemble buse chauffé. Le second passage d'écoulement interne du corps de tige est en communication fluidique avec le premier passage d'écoulement interne de la tige.