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Large-format rapid 3D printing method and device based on DLP photo-curing

A 3D printing, large-format technology, applied in metal processing equipment, 3D object support structure, additive manufacturing, etc., can solve the problems of slow printing speed and small printing size

Pending Publication Date: 2017-10-24
南京壹千零壹号自动化科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0008] Based on the various deficiencies of the existing solutions, the purpose of the present invention is to propose a large-format rapid 3D printing method and device based on DLP photocuring to solve the problems of small printing size and slow printing speed of the existing solution equipment

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Embodiment Construction

[0026] A large-format rapid 3D printing method and device based on DLP photocuring proposed by the present invention will be described in detail below in conjunction with the accompanying drawings. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "left", "right", "upper", "lower", "bottom" etc. is based on the orientation or positional relationship shown in the drawings The positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, "first", "second", etc. It does not indicate the importance of components, so it should not be construed as limiting the present invention. In addition, the structural sizes, proportions, etc. shown in the illustrations of the present invention a...

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Abstract

The invention provides a large-format rapid 3D printing method and device based on DLP photo-curing. The large-format rapid 3D printing method based on DLP photo-curing comprises the steps that four groups of DLP projection system components are adopted to constitute a large-sized format projection system ( the large-format projection system for short), the large-format projection system is controlled by a computer to continuously play UV images of 365-405 nm layer by layer, the UV images enable photosensitive resin to be cured layer by layer, a Z-axis printing platform descends layer by layer, and then a three-dimensional object is formed through such reciprocating iteration. The large-format projection system is placed on the upper portion of the whole device system, a seal component cavity is arranged on the lower portion, the upper portion of the seal component cavity restrains generation of bubbles through high-pressure oxygen and forms a curing dead zone, under the action of the dead zone and the high-pressure oxygen, the liquid level can be kept stable; and meanwhile, under the action of a balance box and a liquid level laser ranger, on the premise of not lowering the precision, the large-format rapid 3D printing device greatly improves the printing speed and the printing format.

Description

technical field [0001] The invention belongs to the technical field of DLP photocuring three-dimensional printing, in particular to a large-format fast 3D printing method and printing equipment based on DLP photocuring. Background technique [0002] Rapid prototyping technology is a process of discrete iteration. The 3D model is layered in one direction to obtain the contour information or image information of each layer, and then realize the data information of each layer through the printing head or light source, repeat the iteration, and finally form a 3D solid model. [0003] DLP is the abbreviation of "Digital Light Processing", that is, digital light processing technology, which is a display technology for realizing digital images based on the digital micromirror of TI Corporation of the United States. At present, DLP technology is more and more widely used in 3D printing, mainly using a single DLP projector fixedly placed at the lower part of the resin tank for light...

Claims

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Application Information

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IPC IPC(8): B29C64/124B29C64/282B29C64/371B33Y30/00B33Y40/00
CPCB33Y30/00B33Y40/00
Inventor 董志根李获鼎黄华陶国强黄骏梁泉闫志刚熊威王登元
Owner 南京壹千零壹号自动化科技有限公司
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