Continuous sinking-mode efficient 3D printing method and equipment

A 3D printing and high-efficiency technology, applied in the direction of additive processing, etc., can solve the problems of complex methods, affecting the light transmission efficiency and propagation path, and difficulty in printing large-scale parts, achieving simple principles, avoiding the mechanical peeling process, and simple structure. Effect

Active Publication Date: 2016-03-30
陕西普立通复材科技有限公司
View PDF5 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is complicated and requires periodic replacement of the PTFE membrane
At the same time, for pull-up printing equipment, due to the effect of gravity and resin resistance, a greater bonding strength is required betwe

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Continuous sinking-mode efficient 3D printing method and equipment
  • Continuous sinking-mode efficient 3D printing method and equipment
  • Continuous sinking-mode efficient 3D printing method and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] like figure 2 As shown, the light source 3 in the continuous sinking type high-efficiency 3D printing device is a surface light source 3-1 composed of a plurality of light-emitting units, and the printing method is as follows.

[0041] 1) Load the designed 3D CAD model of the sample into the 3D printing software, input T2O with an initiator concentration of 2wt% in the liquid radical-initiated photosensitive resin 7, select the printing type as surface light source projection, the printing accuracy is 100μm, 3D The printing software outputs the printing parameters such as the descending speed of the printing table 4, the luminous wavelength and emission power of the light source 3, the temperature of injected oxygen and the ambient pressure to the printing device through calculation.

[0042] 2) Add liquid radical-initiated photosensitive resin 7 into the closed trough 2, degas the entire closed trough 2, and after the degassing is completed, add the liquid radical hav...

Embodiment 2

[0045] like image 3 As shown, the light source 3 in the continuous sinking type high-efficiency 3D printing device is a laser light source 3-2 composed of a blue-violet laser and a laser scanning galvanometer, and the printing method is as follows.

[0046] 1) Load the designed 3D CAD model of the sample into the 3D printing software, input T2O with an initiator concentration of 2 wt% in the liquid radical-initiated photosensitive resin 7, and select the printing type as SLA laser printing, the printing accuracy is 50 μm, 3D The printing software outputs the printing parameters such as the descending speed of the printing table 4, the luminous wavelength and emission power of the light source 3, the temperature of injected oxygen and the ambient pressure to the printing device through calculation.

[0047] 2) Add liquid radical-initiated photosensitive resin 7 into the closed trough 2, degas the entire closed trough 2, and after the degassing is completed, add the liquid radi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a continuous sinking-mode efficient 3D printing method and equipment. The continuous sinking-mode efficient 3D printing method comprises the following steps: by utilizing the principle that after oxygen is applied to the liquid level of resin, oxygen molecules can form an oxygen molecule concentration equilibrium point in the resin and projecting or focusing a light source at the equilibrium point and a region below the equilibrium point, curing of photosensitive resin is initiated, a printing table adhered to a cured product is driven by a motor to continuously move downwards, meanwhile, the photosensitive resin supplements the cured region with the equilibrium point, and changed light of the light source is projected onto the equilibrium point to carry out continuous curing under the control of a program, so that 3D printing is finished. In the printing process, the concentration gradient of the oxygen molecules which permeate into the resin can be controlled by regulating an input parameter of applied oxygen. The continuous sinking-mode efficient 3D printing method and the equipment can dramatically increase the forming speed of the traditional 3D printing, are suitable for large 3D printing products and are simple in mechanism, convenient to operate, high in accuracy of the printed products and excellent in performance.

Description

technical field [0001] The invention belongs to the technical field of 3D printers and printing methods thereof, and in particular relates to a continuous sinking type high-efficiency 3D printing method and equipment. Background technique [0002] The existing light-curing 3D printing technology is mainly based on the principle of stacked manufacturing. The computer obtains the solidified geometric parameters of each layer by layering the three-dimensional model, and then constructs the object by layer-by-layer printing. This layer-by-layer printing method is limited by the printing accuracy, and the thickness of a single layer needs to be reduced to ensure the printing accuracy, which usually takes a lot of time to complete the printing project. [0003] To solve this problem, DeSimone's team at the University of North Carolina has developed an improved 3D printing technology called "Continuous Liquid Interface Fabrication" (CLIP), which uses PTFE as a light-transmitting b...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B29C67/00B33Y30/00
Inventor 段玉岗王奔丁仲秋
Owner 陕西普立通复材科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap