Powder distribution device and additive manufacturing device

A dispensing device and additive manufacturing technology, applied in the field of additive manufacturing, can solve the problem of uneven thickness of the powder layer, achieve the effect of uniform thickness and improve the efficiency of powder spreading

Inactive Publication Date: 2016-08-17
QUICKBEAM CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a powder distribution device, which adopts a two-way powder scr

Method used

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  • Powder distribution device and additive manufacturing device
  • Powder distribution device and additive manufacturing device
  • Powder distribution device and additive manufacturing device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] Example one:

[0031] This embodiment provides a powder dispensing device, such as figure 1 As shown, it includes a powder spreading platform 11, a hopper 12, a scraper 13, a flat plate 14 and a vibrator 15, in which:

[0032] The powder spreading platform 11 is used as a carrier for powder laying, and is horizontally arranged. There are powder material placement places (not shown in the figure) on both sides of the powder spreading platform 11 for placing powder materials to be laid.

[0033] The hopper 12 is arranged above the two sides of the powder spreading platform 11, and powder materials are placed in the powder material. The hopper 12 is opened at the bottom of the hopper 12 for conveying the powder material therein. In this embodiment, preferably, the above-mentioned two hoppers 12 are arranged symmetrically.

[0034] A flat plate 14 is fixed under the hopper 12, one end of the flat plate 14 is connected with a vibrator 15, and the vibrator 15 is connected to a contro...

Example Embodiment

[0052] Embodiment two:

[0053] In this embodiment, a detection device 3 is added to the additive manufacturing device of the first embodiment. Specifically, such as Picture 8 As shown, the detection device 3 is arranged in the forming chamber 1 and symmetrically arranged on both sides of the forming cylinder 2. In this embodiment, the powder spreading platform 11 is provided with a number of through holes 111 on both sides of the forming cylinder 2. When the scraper 13 is spreading powder materials, part of the powder material will fall into the through holes 111, and the detection device 3 will fall into The amount of powder material in the through hole 111 is detected, and the amount of powder material to be transported next time is adjusted according to the detected result, so as to avoid waste of powder material.

[0054] Specifically, the detection device 3 includes a pipe 31 with one end connected to the through hole 111, a recovery box 32 at the other end of the pipe 31, a...

Example Embodiment

[0057] Example three:

[0058] The difference between this embodiment and the second embodiment lies in the structure of the detection device 3. For details, please refer to Picture 9 The detection device 3 of this embodiment includes a pipe 31 with one end connected to the through hole 111, a recovery box 32 located at the other end of the pipe 31, and a proximity switch 33a located on the pipe 31. In this embodiment, the proximity switch 33a is used to detect the amount of powder material. Specifically, when the powder material passes through the pipe 31, the proximity switch 33a will be blocked, and the proximity switch 33a will generate a pulse signal and the amount of powder material falling into the through hole 111 The larger the value, the longer the time to flow through the pipe 31, the longer the time to block the proximity switch 33a, and the larger the pulse width.

[0059] The detection process of the detection device 3 in this embodiment is as follows:

[0060] In a s...

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Abstract

The invention belongs to the field related to additive manufacturing and discloses a powder distribution device and an additive manufacturing device. The powder distribution device comprises a powder spreading platform and hoppers arranged above two sides of the powder spreading platform, powder materials are placed in the hoppers, powder-material placing locations are arranged on the two sides of the powder spreading platform, the powder materials are transferred to the powder-material placing locations through the hoppers, scrapers vertically arranged above the powder spreading platform are allowed to move along the horizontal direction as well as the vertical direction, and the scrapers are respectively located on one sides of the powder-material placing locations when moving along the vertical direction. The powder distribution device is provided with the scrapers allowed to move along the horizontal direction as well as the vertical direction, two-way powder scraping is realized, thickness of powder layers is evener as compared with the existing one-way powder scraping, and powder spreading efficiency is improved. Further more, the scrapers are vertically arranged, so that two-way powder scraping can be better realized, and waste of the powder materials is avoided.

Description

technical field [0001] The invention relates to the technical field related to additive manufacturing, in particular to a powder distribution device and an additive manufacturing device. Background technique [0002] Additive manufacturing (3D printing) is a manufacturing technique that builds three-dimensional objects by successively fusing more than one thin layer of material. Powder bed additive manufacturing is a kind of additive manufacturing technology route. Its basic process steps are as follows: the three-dimensional model is stored in the computer, and the model is layered to obtain the cross-sectional data of each layer. The powder system (device) spreads the powder material into a thin layer on the working platform, and a high-energy-density ray beam (laser or electron beam) scans a section of the three-dimensional model on the powder layer; after that, the working platform descends by a thickness of the powder layer Spread a new layer of powder on the working p...

Claims

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Application Information

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IPC IPC(8): B22F3/105B29C67/00B33Y30/00B33Y40/00
CPCB33Y30/00B33Y40/00B22F10/00B22F10/36B22F12/55B22F12/30B22F10/28B22F10/32B22F12/222B22F12/52B22F12/224B22F12/90B22F12/67B22F10/73Y02P10/25
Inventor 郭超林峰马旭龙葛文君张磊向虎
Owner QUICKBEAM CO LTD
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