3D printing head having multi-section heating function and provided with micro molten pool

Abstract

The invention provides a 3D printing head having a multi-section heating function and provided with a micro molten pool. The 3D printing head having the multi-section heating function and provided with the micro molten pool comprises a throat pipe and a printing head body. A cooling assembly is arranged on the throat pipe. Temperature-control heating assemblies are arranged on the throat pipe andthe printing head body. The micro molten pool and a feeding cavity are arranged in the printing head body. The throat pipe communicates with the micro molten pool. The micro molten pool communicates with the feeding cavity. The feeding cavity communicates with a nozzle. The nozzle is detachably connected with the printing head body. A feeding assembly is arranged in the feeding cavity. The 3D printing head having the multi-section heating function and provided with the micro molten pool has the beneficial effects that wires can be manufactured and formed easily and are not limited by materials; the cost and energy consumption of the temperature-control heating assemblies are greatly reduced; parts made from metal through 3D printing are more practical; the reliability of the printing headis greatly improved through the cooperation of multi-section heating and extrusion feeding through a vane pump; and the molten pool and a fluid passage can be detached and cleaned easily and can alsobe regularly cleaned conveniently, so that it is ensured that a 3D printer works in the optimal state.

Description

technical field [0001] The invention relates to a 3D printing device, in particular to a 3D printing nozzle with multi-stage heating and a micro-melting pool. Background technique [0002] 3D printing is to use the cross-sectional information of each layer of the three-dimensional solid model after slicing, and use powder, liquid or sheet materials and various bonding methods to print and stack the entity layer by layer. It belongs to a rapid prototyping technology. kind. This technology can accurately copy the solid model, and can manufacture parts with complex structures that are difficult to complete by traditional processing technology. It has the advantages of fast forming, low cost of small batch manufacturing, and less waste of material removal. It has been widely used in medicine, military, aerospace, etc. and industrial production research and development. [0003] Although it has incomparable advantages over traditional processing and manufacturing technologies, ...

AI Technical Summary

Problems solved by technology

[0008] The invention proposes a 3D printing nozzle with multi-stage heating and micro-melting pool, which is used to solve the problems of difficulty in making various traditional 3D printing raw materials, high cost and energy consumption of production equipment, useless printing parts, difficult maintenance of nozzle blockage, etc.

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