High-efficiency high-temperature print head supporting multiple printing materials

Abstract

The invention discloses a high-efficiency high-temperature print head supporting multiple printing materials. The print head comprises a driving device, a circular water-cooling system, a material inlet, a high-pressure protection gas inlet pipe, a high-temperature liquid cavity and a heating device; the high-temperature liquid cavity is formed by a crucible; two filter layers are arranged in the high-temperature liquid cavity; multiple spraying holes are formed in the bottom of the high-temperature liquid cavity; a coaxial protection gas shield is arranged outside the high-temperature liquid cavity; a gas uniformizing sheet is arranged between the coaxial protection gas shield and the high-temperature liquid cavity; the heating device is arranged on the outer part of the coaxial protection gas shield; protection gas is introduced into the coaxial protection gas shield; and the material inlet is used for injection printing materials. The print head can be used for printing of metal or other materials which need to be molten at high temperature; the print head is provided with multiple spraying holes; the structure is compact; and the working efficiency can be improved. Different driving positions can be provided by the print head, so that the print head can be applicable to printing of different materials, and meanwhile, the print head is also applicable to printing of the same material with different liquid drop sizes.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to a high-efficiency high-temperature nozzle supporting multiple printing materials. Background technique [0002] 3D printing technology is rapidly changing traditional production methods and lifestyles. As a strategic emerging industry, the United States, Germany and other developed countries attach great importance to and actively promote this technology. Many experts believe that the new manufacturing technology represented by 3D printing technology characterized by digitalization, networking, personalization and customization will promote the third industrial revolution. [0003] As the most cutting-edge and most potential technology in the entire 3D printing system, 3D printing technology of metal parts is an important development direction of advanced manufacturing technology. With the development of science and technology and the needs of popularization and application, the direc...

AI Technical Summary

Problems solved by technology

The material has high melting point, high viscosity and surface tension, and some materials are also highly corrosive. It is difficult for the mature normal temperature liquid material injection device and control method to be directly used for normal temperature solid material injection and printing.

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