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A kind of photocuring 3D printer and 3D printing method

A 3D printer, light curing technology, applied in 3D object support structures, metal processing equipment, manufacturing tools, etc., can solve the problems of long delay, reduced curing efficiency, high price, etc., and achieve the effect of high printing performance

Active Publication Date: 2020-03-13
GOLD ARRAY TECH BEIJING LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the need to use DLP equipment, it is expensive and not available to ordinary consumers
[0006] In addition, whether it is a selective laser curing device or a mask photocuring device, it has a complex optical path, resulting in a long delay during printing, which reduces the curing efficiency

Method used

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  • A kind of photocuring 3D printer and 3D printing method
  • A kind of photocuring 3D printer and 3D printing method
  • A kind of photocuring 3D printer and 3D printing method

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Experimental program
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Embodiment Construction

[0024] refer to figure 1 As shown, the working principle of the light-curing 3D printer referred to in the present invention is illustrated. As shown, including:

[0025] The resin pool 1 is used to hold the liquid photosensitive resin; in order to make the liquid photosensitive resin carried in the photosensitive resin pool solidify, the bottom wall 11 of the photosensitive resin pool is made of a transparent material that can pass through the light of the above-mentioned light source assembly;

[0026] The light source assembly 2 is located at the lower part of the resin pool, corresponding to the position of the photosensitive resin pool;

[0027] The control unit (not shown in the figure) can be an external computer, and can also be composed of a chip and a control panel that the 3D printer itself has, and is used to control the printed pattern displayed by the LCD display unit;

[0028] The LCD display unit 5 is covered on the outer surface of the bottom wall of the pho...

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PUM

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Abstract

A photo-curing 3D printer, comprising: a storage unit (1) for accommodating liquid-state photosensitive resins, and a light source (2) provided below the storage unit (1); the light source (2) is configured to be the bottom of the storage unit (1) for displaying a pattern consisting of a light shielding area for shielding light rays and a light transmitting area for transmitting the light rays by means of irradiation of the light rays with central wavelengths being longer than 405 nm and shorter than 420 nm; the photosensitive resins accommodated in the storage unit (1) are cured under irradiation of the light rays; the photosensitive resins contain photo-polymerization initiators with sensitive wavelengths being longer than 405 nm and shorter than 420 nm.

Description

technical field [0001] The invention relates to the field of 3D printers, in particular to a photocuring 3D printer using an LCD display unit. Background technique [0002] In 3D printing technology, photocuring rapid prototyping technology is more common, which uses liquid photosensitive resin (UV) to undergo polymerization reaction under light, and irradiates the light source according to the cross-sectional shape of the solid to be cured, so that the liquid photosensitive resin gradually After the layers are cured and formed, they are accumulated and superimposed, and finally a solidified entity is formed. [0003] Currently, photocuring rapid prototyping devices based on the above principles mainly include a selective laser curing device (SLA, also known as a stereolithography device) and a mask photolithography device (DLP). [0004] The selective laser curing device uses a laser with a specific intensity of 405nm wavelength to focus on the surface of the liquid photos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/129B29C64/286B33Y10/00B33Y30/00
CPCB33Y10/00B33Y30/00
Inventor 李厚民许蓓蓓刘振亮王翊坤朱凯强
Owner GOLD ARRAY TECH BEIJING LLC