Powder spreading device and 3D printing apparatus

A powder spreading device and driving device technology, applied in the direction of improvement of process efficiency, improvement of energy efficiency, additive manufacturing, etc., can solve problems such as uneven powder spreading, low utilization rate of powder material, low density of powder layer, etc., to achieve improved spreading Toner quality, improve the effect of printing quality

Active Publication Date: 2020-04-03
西安赛隆增材技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After a scraper spreads powder, the remaining powder will directly enter the powder leakage port. During the reset process of the scraper, there is no powder in the forward direction of the scraper, so it is impossible to carry out secondary powder spreading, and the quality of powder spreading cannot be guaranteed. Powder utilization rate is low
As a result, the powder spreading steps are too single, and after a long time of operation, it will lead to uneven powder spreading and low powder layer density.
And if there is an abnormal situation in the printing process, it will be difficult to remedy it in time

Method used

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  • Powder spreading device and 3D printing apparatus
  • Powder spreading device and 3D printing apparatus
  • Powder spreading device and 3D printing apparatus

Examples

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Embodiment Construction

[0031] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0032] Furthermore, the drawings are merely schematic illustrations of embodiments of the disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus repeated descriptions thereof will be omitted. Some of the block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically separate entities.

[0033] Firstly, a...

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Abstract

The embodiment of the invention relates to a powder spreading device and a 3D printing apparatus. The powder spreading device comprises a driving device, a transmission gear set and two scrapers. Thetransmission gear set is driven by the driving device to rotate. The two scrapers is connected with the transmission gear set and driven by the transmission gear set to rotate. The two scrapers of thepowder spreading device can be driven by the transmission gear set to rotate by a certain angle, powder spreading can be performed both in the power sending process and the powder returning process,the powder spreading quality is improved, and therefore the printing quality of parts is improved.

Description

technical field [0001] Embodiments of the present disclosure relate to the technical field of 3D printing equipment, and in particular, to a powder spreading device and 3D printing equipment. Background technique [0002] Rapid prototyping (RP) technology is an advanced manufacturing technology developed in the 1990s. Using powder as raw material, the rapid prototyping technology of parts through selective deposition / sintering / melting process is a hotspot in the field of rapid manufacturing. Typical technologies include: Selective Laser Sintering (SLS), Selective Laser Melting (SLM), Electron Beam Melting (EBM), and Three Dimensional Printing (3DP). The technological process of these technologies is similar: first, a layer of raw material powder is laid on the processing plane, and then the processing source divides the powder according to the cross-sectional shape of the part to form the cross-sectional profile of the part. For example, SLS / SLM technology uses laser to si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B33Y30/00
CPCB22F3/003B33Y30/00B22F10/00B22F12/67B22F12/22B22F10/28Y02P10/25
Inventor 任龙赵培朱纪磊高峰周勃延全俊涛葛宽强向长淑
Owner 西安赛隆增材技术股份有限公司
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