A kind of printing method of jet photosensitive polymer 3D printer

A photopolymer, 3D printer technology, applied in the field of 3D printing, can solve the problems of affecting the printing effect and the mismatch of the distance between the photopolymer and the downward movement of the table, and achieve high accuracy of calculation, prevention of height changes, and reliable data. Effect

Active Publication Date: 2019-05-10
NANJING CHINA UNIV INTPROP CO LTD
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Problems solved by technology

[0003] Existing jetting photosensitive polymer 3D printers usually move down a certain distance after the jetting and printing of one layer are completed. Since the height of the photosensitive polymer jetted each time is not exactly the same, the printer will be damaged after being used for a period of time. , the distance that the worktable moves down may not match the height of the photosensitive polymer, thus affecting the printing effect

Method used

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  • A kind of printing method of jet photosensitive polymer 3D printer
  • A kind of printing method of jet photosensitive polymer 3D printer

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Embodiment 1

[0026] see Figure 1-2 As shown, the 3D printer includes a nozzle 1, a guide rail 2, a workbench 3, a driving device 4, a UV lamp 5, a laser generator 6, an image detection device 7, and a main control board 8; the nozzle 1 and the guide rail 2 Located above the workbench 3, the spray head 1 can move above the workbench 3 along the guide rail 2. The first driving device 4 includes a first motor 41 and a transmission device 42. One end of the transmission device is connected to the first motor, and the other end is connected to the The workbench 3, the transmission device 42 drives the workbench 3 to move up and down, the laser generator 6 is located above the workbench 3 and the laser light emitted by the laser generator 6 is perpendicular to the workbench, the laser generator can move along the horizontal direction, and the imaging device 7 is located on the Above the workbench 3, and forming an included angle of 45 degrees with the workbench, the UV ultraviolet lamp 5 is fix...

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Abstract

The invention relates to a printing method for a photosensitive polymer jetting 3D printer, wherein an image acquisition device acquires an image U1 of laser on a worktable before a polymer is jetted; the image acquisition device acquires an image U2 of laser on the worktable after the polymer is jetted and solidified; the height H of the polymer is determined at the time according to the images U1 and U2, the displacement distance of the worktable is determined according to the height of the polymer, then the downward displacement distance of the worktable accords with the height of the polymer, the image is acquired after the photosensitive polymer is solidified, so that the height variation caused by the solidification process of the photosensitive polymer is effectively prevented, and therefore, the calculation of the height is more accurate.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a printing method for a photosensitive polymer 3D printer Background technique [0002] At present, a 3D printer, also known as a three-dimensional printer, is a printing device that uses rapid prototyping technology, based on digital model files, and uses molding materials to construct a three-dimensional entity by layer-by-layer printing. With the rapid development of 3D printing technology, 3D printers have been widely used in product manufacturing. 3D printing technology is known as the "third industrial revolution" and is widely used in industries, medical care, teaching, aerospace and other fields. The basic principle of 3D printing is layered processing and superposition forming, that is, to generate 3D entities by adding materials layer by layer. During 3D printing, the software completes a series of digital slices through computer-aided design technology (CAD), and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/135B29C64/268B29C64/386B33Y30/00B33Y50/00
CPCB33Y30/00B33Y50/00
Inventor 王小绪王力董豪李秋盛
Owner NANJING CHINA UNIV INTPROP CO LTD
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