Multi-material photo-curing 3D printer

A 3D printer and photo-curing technology, which is applied in the direction of 3D object support structure, additive processing, metal processing equipment, etc., can solve the problems of low precision and expensive process equipment, so as to ensure precision and stability, simplify equipment structure, reduce The effect of equipment cost

Inactive Publication Date: 2020-09-18
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current multi-material 3D printing solutions mainly hav

Method used

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  • Multi-material photo-curing 3D printer
  • Multi-material photo-curing 3D printer
  • Multi-material photo-curing 3D printer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: A digital light processing (DLP) projector is used as the graphic exposure system 10. When printing multi-color moldings on different layers, the sliding body makes the printing platform 15 first align with the first resin tank, and the digital light processing (DLP) ) The projector obtains the printing data of the current printing layer 17 through the computer control system 11 and projects it onto the printing platform 15; The mechanism drives 3 to move the printing platform 15 so that the printing platform 15 is aligned with the cleaning tank 14, and the printing platform 15 is lowered through the Z-axis direct motion mechanism drive 6 and the Z-axis direct motion mechanism 7, and the semi-finished molded parts are immersed in the cleaning solution. After cleaning, lift the printing platform 15, move the printing platform 15 again to align it with the second resin tank, then lower the height of the printing platform 15 to the height of the next printing ...

Embodiment 2

[0027] Embodiment 2: Using the purple light array, LCD screen and Fresnel lens as the patterned exposure system 10, when printing multi-color molded parts on different layers, slide the body so that the printing platform 15 is first aligned with the first resin tank, and patterned The exposure system 10 obtains the printing data of the first material under the current layer through the computer control system 11 and projects it onto the printing platform 15; The axis direct motion mechanism drives 3 to move the printing platform 15, so that the printing platform 15 is aligned with the cleaning tank 14, and the Z axis direct motion mechanism drives 6 and the Z axis direct motion mechanism 7 to lower the printing platform 15, and the semi-finished molded parts are immersed in the cleaning solution. After cleaning, lift the printing platform 15, move the printing platform 15 again to align with the second resin tank, then lower the height of the printing platform to the height of ...

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Abstract

The invention discloses a multi-material photo-curing 3D printer which comprises a machine frame. An X-axis straight moving mechanism and a Z-axis straight moving mechanism are fixed to the machine frame. A printing platform is disposed at the upper portion of the Z-axis straight moving mechanism. An installing platform is disposed below the printing platform. The installing platform is provided with a plurality of resin grooves and a cleaning groove. A graphical exposure system is arranged below the installing platform and is fixed to the lower portion of the Z-axis straight moving mechanism.By adding the plurality of resin grooves, the multi-color, multi-material and multi-performance-structure high-precision photo-curing 3D printing is realized; by arranging the cleaning groove, residual resin on printed structures can be cleaned up during multi-material printing, and precision and stability of printed products are ensured; only by means of one graphical exposure system, integratedmanufacturing of multi-material products can be realized, the printing efficiency and yield are increased, the equipment structure is simplified, equipment cost is reduced, and therefore the requirements of users for high-performance and full-functional customized products are met.

Description

technical field [0001] The invention relates to a 3D printer, in particular to a multi-material photocuring 3D printer. Background technique [0002] 3D printing is a new manufacturing technology that emerged in the 1980s. It is a technology based on digital model files, using adhesive materials, and constructing objects by layer-by-layer printing. The popular 3D printing processes include fused deposition (FDM), selective laser sintering (SLS) and light curing (SL). The current commonly used 3D printing process can generally only realize the manufacture of parts of a single material. These parts often only have a single mechanical, optical, chemical, thermal and electrical properties, which limits the application potential of 3D printing products and cannot further satisfy users. Demand for high-performance and full-featured customized products. [0003] In view of the above defects, the concept of multi-material 3D printing was proposed, aiming to integrate multiple diff...

Claims

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Application Information

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IPC IPC(8): B29C64/129B29C64/264B29C64/232B29C64/236B29C64/35B33Y30/00B33Y40/00
CPCB33Y30/00B33Y40/00B29C64/129B29C64/232B29C64/236B29C64/264B29C64/35
Inventor 李霁张天择蔡超宇穆秋同王培任
Owner SOUTHEAST UNIV
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