Pneumatic and screw linkage type 3D printing extruder capable of accurately controlling temperature

Abstract

The invention discloses a pneumatic and screw linkage type 3D printing extruder capable of accurately controlling temperature, and belongs to the field of 3D printing. The extruder comprises a pneumatic assembly, a storage assembly, an extrusion assembly, a power assembly and a temperature control assembly. The air outlet end of the pneumatic assembly is connected with the air inlet end of the storage assembly, the discharge end of the storage assembly is connected with the feeding end of the extrusion assembly, the power output end of the power assembly is connected with the extrusion assembly, and the temperature control assembly is mounted on the extrusion assembly. The 3D printing extruder is simple in structure and convenient to use. Pneumatic and screw linkage is adopted, so that a printing material is extruded from an extrusion needle. Compared with a single screw extrusion mode or a piston extrusion mode, the 3D printing extruder can provide larger extrusion force, prevents a high-viscosity material from blocking the extrusion needle, and can normally print the high-viscosity material. The extruder enables the material which cannot be extruded smoothly at normal temperatureto be smoothly extruded so that the 3D printing extruder can print various materials.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to a pneumatic screw linkage type 3D printing extruder capable of precise temperature control. Background technique [0002] 3D printing, a type of rapid prototyping technology, is a technology based on digital model files and using bondable materials such as special wax, powdered metal or plastic to construct objects by layer-by-layer printing. Its most prominent advantage is that it can directly generate parts of any shape from computer graphics data without machining or any molds, thereby greatly shortening the product development cycle, improving productivity and reducing production costs. [0003] The biggest difference between a 3D printer and a traditional printer is that the "ink" it uses is a real raw material. There are various forms of stacking thin layers, and there are various types of media that can be used for printing, from a variety of plastics to metals, ceramics and rub...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems of single printing material, damage to printing accuracy after parts are worn out, and failure to provide greater extrusion force, the purpose of the present invention is to provide a printing material that is more than one, easy to replace worn materials, and can provide greater extrusion force 3D printing extruder

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