Light-cured printing equipment and method

A printing device and light curing technology, applied in the field of 3D printing technology, can solve the problems of unfavorable working life and energy consumption of two-photon lasers during printing, and achieve the effect of fast printing speed

Active Publication Date: 2015-05-06
INST OF PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Excessive printing time is detrimental to the working life and energy consumption of the two-photon laser

Method used

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  • Light-cured printing equipment and method
  • Light-cured printing equipment and method
  • Light-cured printing equipment and method

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Embodiment Construction

[0037] Various embodiments of the invention will be described in more detail below with reference to the accompanying drawings. In the various drawings, the same elements are denoted by the same or similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale.

[0038] The invention can be embodied in various forms, some examples of which are described below.

[0039] figure 1 A schematic diagram of the basic structure of a photocuring printing device according to an embodiment of the present invention is shown. The photocuring printing device includes a digital projection unit 100 , a photosensitive hydrogel curing unit 200 and a computer control unit 300 .

[0040]The digital projection unit 100 includes an ultraviolet (UV) light source 110 , a shutter 120 , a filter 130 , a condenser 140 , a total internal reflection (TIR) ​​prism 150 , a digital micromirror device (DMD) 160 and a projection lens 180 . UV light is emitte...

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Abstract

The invention discloses light-cured printing equipment and a method for forming a three-dimensional structure in photosensitive hydrogel according to an image stored in a computer. The light-cured printing equipment comprises a digital projection unit used for projecting the image into a photosensitive hydrogel layer, a photosensitive hydrogel curing unit used for providing the photosensitive hydrogel to form the photosensitive hydrogel layer and curing the photosensitive hydrogel in the photosensitive hydrogel layer according to the projected image layer by layer and a computer control unit used for providing the image to the digital projection unit and controlling imaging position of the projected image in the photosensitive hydrogel layer, wherein the photosensitive hydrogel curing unit consists of a guide rod and a bearing sheet which moves along the guide rod, and the lower surface of the bearing sheet is used for limiting the upper liquid level of the photosensitive hydrogel layer. The light-cured printing equipment is capable of printing the three-dimensional structure with high accuracy and high speed.

Description

technical field [0001] The present invention relates to 3D printing technology, more specifically, to photocuring printing equipment and methods. Background technique [0002] 3D printing is a kind of rapid prototyping technology, also known as "additive manufacturing" technology (Additive process). At present, the materials that can be used for 3D printing are very limited, mainly materials that are easy to shape such as plastics and ceramics, and photosensitive materials that can be photopolymerized. [0003] 3D bioprinting is mainly used in the field of tissue engineering, that is, the biological scaffold is first printed, and then the cells are cultured and expanded and seeded on the biological scaffold. The cell-bioscaffold complexes were cultured in vitro and then transplanted into the body. In this system, cells cannot be planted inside the bioscaffold, and relatively complex tissues and organs cannot be constructed, especially the constructed tissues and organs can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C67/00B33Y10/00B33Y30/00B33Y40/00
Inventor 刘雳宇
Owner INST OF PHYSICS - CHINESE ACAD OF SCI
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