Powder supplying and spreading device

A powder spreader and powder supply technology, which is applied in the field of additive manufacturing, can solve the problems of difficulty in improving the quality of powder spreading, achieving the effect of powder spreading, and difficult to meet the ideal effect when using it.

Active Publication Date: 2019-12-10
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

[0003] In the field of additive manufacturing, that is, 3D printing technology, solving the problem of powder supply and spreading has always been a hot spot in the research of 3D printing technology. The various powder supply and spreading devices proposed on the market are not suitable for use due to various deficiencies. It has been difficult to meet the ideal effect
If some powder supply and spreading devices are designed separately, powder is spread while external powder is supplied, which will undoubtedly increase the structure and equipment volume, resulting in an

Method used

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  • Powder supplying and spreading device
  • Powder supplying and spreading device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] Example 1:

[0031] Reference figure 1 , figure 2 , A powder supplying and spreading device, comprising a powder storage chamber 8, a first powder supply roller 20, a second powder supply roller 21, a powder spreading roller 22, a level detector 1 and a power device 7, the first and second supply The powder roller has a rotor structure; the powder spreading roller 22 is cylindrical.

[0032] The powder storage chamber 8 is composed of an upper box body 2 and a lower box body 3. A sealing gasket 9 is arranged between the upper and lower boxes, and the two are connected together in a fitting manner to ensure the entire powder storage chamber 8 The sealing effect of the sealing gasket 8 is ordinary polytetrafluoroethylene; the first and second powder supply rollers respectively include a first powder supply rotor 10 and a first powder storage tank 11, a second powder supply rotor 14 and a second storage tank. Powder tank 15, the inside of the first and second powder storage ...

Example Embodiment

[0038] Example 2:

[0039] The difference between this embodiment and embodiment 1 is that the powder feeding blades on the powder feeding roller described in the embodiment of the present invention can be set with 6 powder feeding blades according to the actual conditions of use. The purpose of this is to adjust The powder supply amount during a single spreading can more accurately realize quantitative powder supply.

[0040] The working mode and other structures and connection modes of this embodiment are the same as those in Embodiment 1.

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PUM

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Abstract

The invention discloses a powder supplying and spreading device, and belongs to the field of additive manufacturing. The powder supplying and spreading device comprises a powder storage chamber, a powder supplying roller, a powder spreading roller, a level detector and a power device. The powder supplying roller is of a rotor structure. The powder spreading roller is cylindrical. The powder supplying roller comprises a first powder supplying rotor, a first powder storage tank, a second powder supplying rotor and a second powder storage tank. The first powder storage tank and the second powderstorage tank are arranged at the bottom end in the powder storage chamber and are higher than the powder spreading roller. The first powder supplying rotor and the second powder supplying rotor are mounted in the first powder storage tank and the second powder storage tank separately, and the first powder supplying rotor and the second powder supplying rotor and the first powder storage tank and the second powder storage tank are symmetric to the powder spreading roller. The first powder supplying rotor and the second powder supplying rotor are provided with powder feeding blades fixed to thepowder supplying rotors at equal intervals. By the adoption of the rotor structures with the powder feeding blades, quantitative powder supplying and spreading can be achieved, the powder supplying amount is increased, and the efficiency is improved; and the cylindrical powder spreading roller is adopted, powder outlets are formed in the powder spreading roller, uniform powder spreading can be achieved, and the powder spreading quality is improved.

Description

technical field [0001] The invention relates to the field of additive manufacturing, and relates to a 3D printer, in particular to a powder supply and spreader for the 3D printer. Background technique [0002] Additive manufacturing is the processing of parts through layered scanning. During the processing, every time a layer is processed, the workbench is lowered by one layer thickness, and a certain amount of powder is sent out by the powder supply and spreader, and then the powder is spread evenly by the powder spreader, and then the layer of powder is sintered by laser. This process is repeated continuously, and finally the processing is completed. [0003] In the field of additive manufacturing, that is, 3D printing technology, solving the problem of powder supply and spreading has always been a hot spot in the research of 3D printing technology. The various powder supply and spreading devices proposed on the market are not suitable for use due to various deficiencies....

Claims

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Application Information

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IPC IPC(8): B29C64/153B29C64/218B29C64/255B29C64/393B33Y30/00B33Y40/00B33Y50/02
CPCB33Y30/00B33Y40/00B33Y50/02B29C64/153B29C64/218B29C64/255B29C64/393
Inventor 郑力铭康柱黄继霖康小青吴春蕾尹海龙
Owner 四川交大至信教育科技有限公司
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