Light-curing three-dimensional printing method and device

A 3D printing and light-curing technology, which is applied in processing and manufacturing, manufacturing auxiliary devices, processing data acquisition/processing, etc., can solve problems such as deformation and light-curing resin warping, and achieve reduced temperature rise, reduced shrinkage, and deformation problems Improved effect

Active Publication Date: 2021-05-11
上海普利生三维科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a light-curing three-dimensional printing method and equipment, which can improve the problem of warping and deformation of light-curing resin

Method used

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  • Light-curing three-dimensional printing method and device
  • Light-curing three-dimensional printing method and device
  • Light-curing three-dimensional printing method and device

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Embodiment Construction

[0031] The embodiment of the present invention describes a light-curing three-dimensional printing method, which can reduce the internal stress generated when the light-curing resin is cured in a large area, thereby improving the degree of warpage and deformation of the printed workpiece.

[0032] figure 1 The basic structure of the photo-curing 3D printing device is shown. This 3D printing device 100 includes a material tank 110 for accommodating photocurable resin, an image exposure system 120 for curing the photocurable resin, and a lift table 130 for connecting molded workpieces. The image exposure system 120 is located above the material tank 110 and can irradiate a beam image to cure a layer of photocurable resin on the liquid surface of the material tank 110 . Every time the image exposure system 120 irradiates the light beam image to cause a layer of photocurable resin to cure, the lifting table 130 will drive the formed layer of photocurable resin to drop slightly, a...

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Abstract

The invention relates to a photocuring three-dimensional printing method and equipment. The method includes the steps of: obtaining a three-dimensional data model of the printed object; dividing the three-dimensional data model into multiple layers; identifying exposed areas and internal areas of each layer of at least some layers of the three-dimensional data model; and assigning the exposed area the first an exposure intensity, giving the inner area a second exposure intensity, wherein the first exposure intensity is greater than the second exposure intensity; exposing the bare area with the first exposure intensity, and exposing the inner area with the second exposure intensity.

Description

technical field [0001] The invention relates to three-dimensional printing technology, in particular to a photocuring three-dimensional printing method and equipment. Background technique [0002] 3D printing technology is based on the computer 3D design model, through the software layered discrete and numerical control forming system, using laser beams, hot-melt nozzles, etc. to accumulate metal powder, ceramic powder, plastic, cell tissue and other special materials layer by layer Bonding, and finally overlaying and molding to create a solid product. Unlike the traditional manufacturing industry, which shapes and cuts raw materials through mechanical processing methods such as moulds, turning and milling, and finally produces finished products, 3D printing transforms 3D entities into several 2D planes, and processes materials and superimposes them layer by layer for production, which greatly The manufacturing complexity is reduced. This digital manufacturing mode does no...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/106B29C64/20B29C64/386B33Y10/00B33Y30/00B33Y50/00
CPCB33Y30/00B33Y50/00
Inventor 侯锋
Owner 上海普利生三维科技有限公司
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