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A laser sintering 3D printer

A 3D printer and laser sintering technology, used in the field of material manufacturing, can solve the problems of inability to completely avoid powder entry, complex structure, etc., to ensure the quality of powder coating, prevent a large number of accumulations, and be easy to clean.

Active Publication Date: 2022-01-07
四川交大至信教育科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although those skilled in the art try to solve the sealing problem between the two by various means, it is still impossible to completely avoid the entry of powder.
At the same time, most of the quantitative powder spreading and leveling devices in the prior art adjust the powder spreading amount by adjusting the speed of the powder supply roller. The structure is complicated, and it needs to cooperate with the powder leakage device to realize the powder spreading and printing process.

Method used

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  • A laser sintering 3D printer
  • A laser sintering 3D printer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] see figure 1 , a laser sintering 3D printer, including a frame, an upper cylinder body 2 and a lower cylinder body 7, the top of the side wall of the lower cylinder body 7 is connected with an insert plate 6 with a thickness smaller than that of the lower cylinder body, and the insert plate The thickness of the upper end is increased to form an outer edge 5, which is closely matched with the inner wall of the groove 3 of the upper cylinder body. The lower cylinder body 7 and the insert plate 6 are integrally formed; the upper and lower cylinder bodies are rectangular, and the insert plate is a rectangle corresponding to the upper and lower cylinder bodies; matching groove 3; the frame is composed of an upper top surface 1, a lower bottom surface 10, a column 4 and a crossbeam, the column is 4, the upper top surface 1 is fixedly connected with the top surface of the upper cylinder body 2, and the lower bottom surface 10 The column 4 is connected to the upper top surface...

Embodiment 2

[0034] The difference between this embodiment and Embodiment 1 is that the upper top surface of the frame is formed by extending the upper cylinder top surface, and the two are on the same plane. All the other structures and working methods are the same as those in Example 1. Compared with Embodiment 1, this embodiment further reduces the complexity of the structure, reduces the weight, and reduces the cost.

Embodiment 3

[0036] The only difference between this embodiment and the embodiment 1 is that a seal is added between the outer edge and the groove to achieve a further sealing effect. All the other structures and working methods are the same as those in Example 1.

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PUM

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Abstract

The invention belongs to the field of additive manufacturing, and specifically relates to a retractable 3D printer, which includes an upper cylinder body 2, a lower cylinder body 7 and a frame. The upper cylinder body and the lower cylinder body are movably connected; the bottom surface of the lower cylinder body is a workbench. Quantitative powder supply can be realized by adjusting the corresponding relationship between the powder outlet and the powder supply channel in the powder spreading and leveling device. Compared with the existing technology, the technical solution adopted by the present invention has no sealing problem, reduces the waste of powder, avoids wear and tear, and is easy to clean; it can effectively realize quantitative powder supply, prevent a large amount of printing powder from accumulating, and improve the quality of powder spreading.

Description

technical field [0001] The invention belongs to the field of additive manufacturing, in particular to a laser sintering 3D printer. Background technique [0002] With the development of 3D printing technology, the research on laser sintering technology is getting more and more in-depth. The process of laser sintering processing parts is that the powder supply device spreads a certain amount of powder on the workbench, and then the powder is leveled by the scraper, and then the laser head sinters the layer of powder. The powder spreading device spreads the powder, continues to scrape, and repeats this process, and the required parts will be obtained. [0003] In 3D printing technology, especially in laser sintering technology, the sealing conditions of the molding cylinder are very demanding. In the prior art, the workbench is movably connected to the forming cylinder, and the workbench is driven by the screw nut pair, so as to realize the lifting movement of the workbench ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/153B29C64/218B29C64/214B29C64/232B33Y30/00
CPCB29C64/153B29C64/218B29C64/214B29C64/232B33Y30/00
Inventor 黄纪霖康柱郑力铭吴春蕾康小青靳鹏
Owner 四川交大至信教育科技有限公司
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