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A laser sintering 3D printer

A 3D printer and laser sintering technology, applied in the field of additive manufacturing, can solve the problem that the powder cannot be completely avoided

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.

Method used

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  • A laser sintering 3D printer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] see figure 1 , a laser sintering 3D printer, comprising a frame, an upper cylinder body 2 and a lower cylinder body 7, a workbench is arranged inside the lower cylinder body, the workbench and the lower cylinder body are welded, and the side walls of the lower cylinder body 7 The top end is connected with an insert plate 6 whose thickness is smaller than that of the lower cylinder body, and the lower cylinder body 7 and the insert plate 6 are integrally formed; the upper and lower cylinder bodies are both rectangular, and the insert plate is a rectangle corresponding to the upper and lower cylinder bodies ; The vertical direction of the side wall of the upper cylinder body is provided with a groove 3 matched with the insert plate; the thickness of the upper end of the insert plate 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 top surface 1, the bottom surface 10, the column 4 and the cr...

Embodiment 2

[0028] 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

[0030] 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 in Embodiment 2.

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PUM

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Abstract

The invention belongs to the field of additive manufacturing, and in particular relates to a retractable 3D printer, comprising an upper cylinder body 2, a lower cylinder body 7 and a frame, wherein the upper and lower cylinder bodies are movably connected; The worktable and the lower cylinder are fixedly connected. Compared with the prior art, the technical solution adopted in the present invention is that the lower cylinder body and the worktable are fixedly connected and move up and down together, there is no sealing problem, powder waste is reduced, abrasion is avoided, and cleaning is easy.

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): B29C64/153B29C64/20B29C64/205B33Y30/00
CPCB29C64/153B29C64/20B29C64/205B33Y30/00
Inventor 黄继霖郑力铭康柱吴春蕾康小青
Owner 四川交大至信教育科技有限公司