Three-dimensional (3D) printing nozzle

Abstract

The invention belongs to the technical field of three-dimensional printing, and specifically relates to a 3D printing nozzle. The 3D printing nozzle comprises a feeding hopper, a curing tube and a bullet-shaped discharging tube, wherein a feeding tube is connected to the top of the feeding hopper; the bottom of the feeding hopper is connected to the top end of the curing tube; an annular mountinggroove is formed in the inner wall of the curing tube; a transparent glass tube is fixedly connected to the inner wall of the annular mounting groove; and nanometer scattering ions are injected into the transparent glass tube. Ultraviolet light emitted by a laser head is scattered through the synchronization effect of a scattering tube and the transparent glass tube in the 3D printing nozzle, andcan simultaneously irradiate the inner side and outer side of a light curing material, so that the curing is relatively uniform; and the interior of the transparent glass tube is scraped through the mutual cooperation of a linkage ring and a scraping ring so as to prevent the light curing material from adhering to the inner wall of the transparent glass tube, and thus, the blockage is avoided.

Description

technical field [0001] The invention belongs to the technical field of 3D printing, in particular to a 3D printing nozzle. Background technique [0002] Stereolithography printing technology is to design a three-dimensional solid model through CAD, use discrete programs to slice the model, design the scanning path of the laser, and use the generated data to accurately control the movement of the laser scanner and the lifting table. Then use a laser with a specific wavelength and intensity to irradiate the surface of the light-curing material according to the designed scanning path, so that it is solidified sequentially from point to line and from line to surface, so that a layer of resin in a specific area of ​​​​the surface is cured, and then the lifting table is in the vertical position. The height of one layer is lowered in the direction, and the cured layer will be covered with another layer of liquid resin, and then the second layer of scanning is performed to cure anot...

AI Technical Summary

Problems solved by technology

[0005] In order to make up for the deficiencies of the prior art and solve the problems in the prior art that the 3D printing nozzle cures the light-curing material unevenly, the light-curing material is easy to adhere to the inner wall of the 3D printing nozzle, and the problem that the printing nozzle is easily blocked, the present invention A 3D printing nozzle proposed

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