3D printing spray head compatible with multiple materials

• Main Authors: WANG YONGYIN, BAI HONGWEI, LONG HUA, SHEN LONG
• Format: Patent
• Language: Chinese; English
• Published: 11.01.2022
• 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 invention discloses a 3D printing spray head compatible with multiple materials, and belongs to the technical field of 3D printing. An inner clamping ring arranged on the uppermost portion serves as a fulcrum to rotate in an embedded mode of a mounting piece, a feeding mechanism and the spray head can be rotationally adjusted, an external heating device is arranged in an inner cavity of the mounting piece, and raw materials in a material containing ball are heated and melted. The melted raw materials are discharged out of the inner cavity of the material containing ball through a material dispersing opening, an external pull-up mechanism is connected with a stretching block, the stretching block can be pulled inwards and outwards, the whole sleeving ring is made to be stretched to be of an oval structure from a perfect circle, and the deformed sleeving ring is in an extrusion release motion state on the outer wall of the material containing ball. The different raw materials heated in the inner cavity of t