3D printing spray head device

Abstract

The invention discloses a 3D printing spray head device. The 3D printing spray head device comprises an extruding mechanism, a feeding mechanism and a heating mechanism. The extruding mechanism comprises a material guide cylinder which is positioned and mounted through an upper fixing plate and a lower fixing plate. A feeding screw mounted through a rolling bearing is arranged in the material guide cylinder. The upper end of the feeding screw extends out of an upper cylinder opening of the material guide cylinder and is connected with a motor output shaft mounted on the upper fixing plate. A detachable spray head is mounted on a lower cylinder opening of the material guide cylinder. The feeding mechanism comprises a feeding pipe. The feeding pipe communicates with a feeding opening in a material guide cylinder body. The heating mechanism comprises air heaters arranged on the lower fixing plate. Air blowing openings of the air heaters all face a spray nozzle of the spray head. The 3D printing spray head device is simple in structure, good in extrusion effect, uniform to heat and capable of quickly curing a model, and the spray head is not likely to be blocked.

Description

technical field [0001] The invention relates to 3D printing equipment components, in particular to a 3D printing nozzle device suitable for printing polymer melting materials. Background technique [0002] With the development of science and technology, 3D printing technology has become a new industry. [0003] 3D printing is an intelligent manufacturing method different from traditional manufacturing, and it is also a brand-new technology; printing materials can be plastic, nylon, metal, clay, molten polymer materials, etc., without the need for other complicated tools and processes , directly through the three-dimensional parts superimposed layer by layer under the control of the computer to become a physical object; the application field is very wide, such as personalized design, automobile, aerospace, construction, jewelry, cultural relics and other industries. [0004] 3D printing can produce parts that cannot be produced by traditional technology. It is more suitable ...

AI Technical Summary

Problems solved by technology

[0005] At present, more 3D printers on the market use hot-melt materials for printing. However, printing clay, cement, and polymer melting materials have special requirements, and the structure of the printed nozzle is very important. Partly, the unreasonable design of the nozzle will cause the material to block the nozzle, or the printing material will be extruded intermittently, or the printing material is not easy to solidify, resulting in a series of problems such as slow printing speed and material collapse.

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