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Laser sintering 3D printing machine

A 3D printer and laser sintering technology, applied in the field of additive manufacturing, can solve problems such as high equipment requirements and complex structures, achieve simple equipment, solve cleaning problems, and prevent the accumulation of excess printing powder.

Active Publication Date: 2019-12-10
SHAANXI HENGTONG INTELLIGENT MACHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing quantitative powder coating has mechanical quantitative and electric quantitative. The quantitative method of mechanical quantitative is only suitable for 3D printers of one material, and is not suitable for different materials and different amounts of powder; electric quantitative can be applied to different materials and different amounts of powder. Quantitative, but complex structure and high equipment requirements

Method used

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  • Laser sintering 3D printing machine
  • Laser sintering 3D printing machine
  • Laser sintering 3D printing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: refer to Figure 1 to Figure 6

[0031] A laser sintering 3D printer, including a frame 1, a molding cylinder 2, a laser head 5 and a powder spreading device 9, the molding cylinder 2 is installed in the frame 1, and the molding cylinder 2 includes an upper cylinder body 2-1 and a lower cylinder body 2 -2. The workbench (5) is located inside the lower cylinder body (2-2), and is fixedly connected with the lower cylinder body (2-2).

[0032] The upper cylinder 2-1 is fixedly connected to the upper part of the frame 1, the lower cylinder 2-2 is movably connected to the bottom of the frame 1 through the vertical ball screw pair 3, and the lower cylinder 2-2 is connected to the vertical ball screw pair Under the drive of 3, lift motion is done in frame 1. The upper cylinder body 2-1 and the lower cylinder body 2-2 are connected through the telescopic structure 2-3, and the upper cylinder body 2-1 and the lower cylinder body 2-2 form a closed cavity through ...

Embodiment 2

[0039] The difference between this embodiment and Embodiment 1 is that a sealing gasket is installed between the arc-shaped bottom of the powder supply tank 9-1 and the powder spreading roller 9-2, and other structures, connection methods, and working methods are the same as in Embodiment 1. .

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PUM

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Abstract

The invention provides a laser sintering 3D printing machine comprising a telescopic forming cylinder capable of solving the sealing and washing problems and a powder supplying and laying mechanism. The telescopic forming cylinder is connected with an upper cylinder body and a lower cylinder body through telescopic structures, the whole device is in a closed state, and the quality of formed partscan also be improved while the sealing problem is solved; and furthermore, because a working table and the forming cylinder are connected in a seamless manner, the washing problem can be well solved.The laser sintering 3D printing machine further comprises the powder supplying and laying device. Quantitative supplying of powder is achieved through a quantitative powder laying mechanism, surplus powder stacking is prevented, the device is simple, and cost is low.

Description

【Technical field】 [0001] The invention relates 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 current layer of powder. After the processing is completed, the supplier 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 chamber are very high. Most of the current technologies focus on how to use external conditions to achieve the sealing state of the molding chamber, such ...

Claims

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Application Information

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IPC IPC(8): B29C64/153B29C64/218B29C64/245B33Y30/00
CPCB29C64/153B29C64/218B29C64/245B33Y30/00
Inventor 黄纪霖康柱郑力铭吴春蕾康小青靳鹏
Owner SHAANXI HENGTONG INTELLIGENT MACHINE
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