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Bidirectional quantitative powder supplying and spreading device for additive manufacturing

A powder spreading device and additive manufacturing technology, applied in the field of additive manufacturing, can solve the problems of large span of powder spreading scraper structure, reduced work efficiency, large molding area, etc., to improve the quality of powder spreading, improve sintering quality, reduce small dust effect

Pending Publication Date: 2019-05-24
SUZHOU XIDIMO THREE DIMENSIONAL PRINTING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Based on the process characteristics of layer-by-layer processing in additive manufacturing, before each scanning process, a new layer of powder must be spread for sintering or melting. Large-scale additive manufacturing equipment has a large forming area, and the required powder-spreading scraper structure has a large span , the stroke is far, and it is bound to have higher requirements on the structural rigidity and work efficiency of the scraper device; in the prior art, the material is spread and scraped once in one cycle of the powder spreading device, which easily leads to empty travel and reduces work efficiency

Method used

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  • Bidirectional quantitative powder supplying and spreading device for additive manufacturing
  • Bidirectional quantitative powder supplying and spreading device for additive manufacturing
  • Bidirectional quantitative powder supplying and spreading device for additive manufacturing

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Embodiment Construction

[0032] figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; figure 2 It is a structural schematic diagram of the present invention; image 3 It is a schematic cross-sectional structure diagram of the present invention; Figure 4 for image 3 Schematic diagram of the enlarged structure at point A; Figure 5 It is a schematic diagram of the structure of the powder supply roller driving device; Image 6 A schematic diagram of the enlarged structure of the boss; Figure 7 It is a schematic diagram of the structure of the scraper mounting seat; Figure 8 It is a schematic diagram of the lining structure of the flow channel; Figure 9 It is a schematic diagram of the structure of the powder supply roller mounting seat; Figure 10 It is a schematic diagram of the powder supply roller structure; Figure 11 It is a schematic diagram of the structure of the powder supply box;

[0033] In this embodiment, the left, right, front and rea...

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Abstract

The invention discloses a bidirectional quantitative powder supplying and spreading device for additive manufacturing. The bidirectional quantitative powder supplying and spreading device comprises aworktable, a powder spreading mechanism capable of linearly and slidably mounted on the worktable in a reciprocating mode in the left-right direction, a first driving device mounted on the worktable and used for driving the powder spreading mechanism to slide, and two power supplying devices mounted on the worktable, located on a sliding path of the powder spreading mechanism and used for supplying powder to the powder spreading mechanism; the powder spreading mechanism comprises a scraper mounting seat driven by the first driving device to slide in a reciprocating mode, a scraper mounted at the bottom of the scraper mounting seat, and two powder spreading flow passes formed in the scraper mounting seat and located in the left side and the right side of the scraper; and powder supplying grooves are formed in the bottoms of the power supplying devices, and the two powder spreading flow passes are used for bearing the powder falling from the two powder supplying grooves to achieve bidirectional powder spreading of the powder spreading mechanism. Bidirectional powder spreading can be achieved, the idle stroke is avoided, the bidirectional stroke is effectively utilized for powder spreading operation, and thus the powder spreading efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing, in particular to a two-way quantitative powder supply and spreading device for additive manufacturing. Background technique [0002] Based on the process characteristics of layer-by-layer processing in additive manufacturing, before each scanning process, a new layer of powder must be spread for sintering or melting. Large-scale additive manufacturing equipment has a large forming area, and the required powder-spreading scraper structure has a large span , the stroke is far, and it is bound to have higher requirements on the structural rigidity and work efficiency of the scraper device; in the prior art, the material is spread and scraped once in one cycle of the powder spreading device, which easily leads to empty travel and reduces work efficiency. [0003] Therefore, in order to solve the above problems, a two-way quantitative powder supply and spreading device for additive manu...

Claims

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Application Information

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IPC IPC(8): B29C64/153B29C64/214B29C64/321B29C64/227B33Y30/00B33Y40/00
Inventor 张正文戴京伟魏东华马国城王海亮朱勇徐仁俊
Owner SUZHOU XIDIMO THREE DIMENSIONAL PRINTING TECH CO LTD
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