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Laser 3D printing device

A 3D printing and laser technology, used in manufacturing auxiliary devices, 3D object support structures, additive manufacturing, etc., can solve problems such as affecting processing efficiency and easy clogging of nozzles, avoiding volatilization or solidification, ensuring processing accuracy, and ensuring stability. Effect

Pending Publication Date: 2021-10-15
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, for 3D printing equipment using FDM technology, the inside of the nozzle is easily blocked, which affects the processing efficiency

Method used

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  • Laser 3D printing device
  • Laser 3D printing device
  • Laser 3D printing device

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Embodiment Construction

[0041] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0042] It should be understood that the following embodiments do not limit the execution order of each step in the method protected by the present invention. The individual steps of the method according to the invention can be carried out in any possible order and in a cyclic manner without conflicting with each other.

[0043] In describing the present invention, it should be understood that the terms "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner ", "outside" and other indicated orient...

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Abstract

The invention relates to the technical field of light curing additive manufacturing, in particular to a laser 3D printing device. A light curing material is adopted as a raw material, and the light curing material is cured through irradiation of a laser source. The raw material is the light curing material, and the curing phenomenon cannot occur under the condition that no laser irradiation exists, so that the phenomenon that in the FDM forming process, a thermoplastic material is cured to block a nozzle in a shutdown state or when the temperature is reduced is effectively avoided. Meanwhile, a slurry storage tank is used for containing light curing slurry in a sealed mode, so that volatilization or solidification of a liquid polymer material caused by the fact that the slurry makes contact with air can be effectively avoided, and the stability of the light curing material is guaranteed. A laser source and a slurry output head are arranged close to a working table, so that slurry extruded on the working table by the slurry output head coincides with the light focus of the laser source, timely laser irradiation and timely curing forming can be achieved at the moment when the extruded slurry is on the working table, and the machining precision is guaranteed.

Description

technical field [0001] The invention relates to the technical field of light-curing additive manufacturing, and in particular to a laser 3D printing device. Background technique [0002] 3D printing technology is now widely used. There are three commonly used technologies in the prior art: SLA (Stereolithography Appearance, SLA) light curing technology, DLP (Digital Light Processing, DLP) light curing technology and Fused Deposition Modeling (Fused Deposition Modeling, FDM). ). [0003] In related technologies, 3D printing equipment using SLA photo-curing technology and DLP photo-curing technology need to put photosensitive resin into an open storage tank, and then irradiate it with light source to make it solidify and shape, which will inevitably lead to waiting time. The performance of the formed material is unstable. Therefore, more and more FDM technology is used for 3D printing equipment now. This equipment includes a nozzle with processing function and a control devi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/106B29C64/255B29C64/268B29C64/321B29C64/393B33Y30/00B33Y40/00B33Y50/02
CPCB29C64/106B29C64/255B29C64/268B29C64/321B29C64/393B33Y30/00B33Y40/00B33Y50/02
Inventor 胡楚雄汪泽付宏
Owner TSINGHUA UNIV