Light-curing three-dimensional printing method and device

A 3D printing and photocuring technology, applied in the field of image exposure systems, can solve problems such as deformation of photocurable resins, and achieve the effect of reducing shrinkage accumulation

Active Publication Date: 2021-05-04
上海普利生三维科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 deformation problem of light-curing resin on large-area surfaces

Method used

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  • Light-curing three-dimensional printing method and device

Examples

Experimental program
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Effect test

no. 1 example

[0043] figure 2 A flow chart of the photocuring three-dimensional printing method according to the first embodiment of the present invention is shown. refer to figure 2 As shown, the method includes the following steps:

[0044] In step 201, obtain the three-dimensional model data of the printing object;

[0045] In step 202, the three-dimensional data model is divided into multiple layers;

[0046] In step 203, for at least some layers of the three-dimensional data model, identifying the bottom shell region whose size reaches a threshold value and the island type area of ​​one or more supports for supporting the bottom shell region in the layer;

[0047] In step 204, a separation area is defined between each island type area and the bottom shell area;

[0048] In step 205, when exposing each island-shaped area and the bottom shell area, the area other than each partition area is exposed during the first exposure period, and each partition area is exposed during the seco...

no. 2 example

[0060] Figure 5 A flowchart of a photocuring three-dimensional printing method according to an embodiment of the present invention is shown. refer to Figure 5 As shown, the method includes the following steps:

[0061] In step 501, obtain the three-dimensional model data of the printing object;

[0062] In step 502, the three-dimensional data model is divided into multiple layers;

[0063] In step 503, for at least a partial layer of the three-dimensional data model, identifying a bottom shell region whose size reaches a threshold value and an island-shaped region where one or more supports for supporting the bottom shell region are in the layer;

[0064] In step 504, a separation area is defined between each island type area and the bottom shell area;

[0065] In step 505, when exposing each island-shaped area and the bottom shell area, the area other than each partition area is exposed in one exposure period, and each partition area is exposed in a second exposure peri...

no. 3 example

[0077] Figure 6 A flow chart of a photocuring three-dimensional printing method according to a third embodiment of the present invention is shown. refer to Figure 6 As shown, the method includes the following steps:

[0078] In step 601, obtain the three-dimensional model data of the printing object;

[0079] In step 602, the three-dimensional data model is divided into multiple layers;

[0080] In step 603, for at least some layers of the three-dimensional data model, identifying a bottom shell region whose size reaches a threshold value and an island-shaped region where one or more supports for supporting the bottom shell region are in the layer;

[0081] In step 604, a separation area is defined between each island type area and the bottom shell area;

[0082] At step 605, dividing the bottom shell region into complementary first and second patterns;

[0083] In step 606, the first pattern of the bottom shell area and the island-shaped areas are exposed through the f...

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Abstract

The invention relates to a photocuring three-dimensional printing method and equipment. The method comprises the steps of: obtaining three-dimensional model data of a printed object; dividing the three-dimensional data model into layers; identifying areas of the bottom shell whose size reaches a threshold value for at least some layers of the three-dimensional data model and for supporting the bottom shell One or more supporting parts of the area are in the island area of ​​the layer; a separation area is defined between each island area and the bottom shell area; each island area and the bottom shell area are exposed in the first period, and in the second The separate regions are exposed by a second period, the first period being earlier than the second period.

Description

technical field [0001] The invention relates to a photocuring three-dimensional printing method and equipment, in particular to an image exposure system of the photocuring three-dimensional printing 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 reduce...

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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