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Squeegee cleaning device and application method of powder spreading type 3D printer

A 3D printer and scraper technology, applied in the field of 3D printing, can solve the problems of unqualified parts, powder falling from the scraper to the forming platform, and powder that is easy to stick and dye, etc., and achieve the effects of simple structure, improved product quality, and reduced scrap rate

Active Publication Date: 2021-09-28
飞而康快速制造科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the scraper is easy to stick to the powder after spreading the powder, and the powder from the scraper will fall to the forming platform unexpectedly when returning the knife, especially for large-scale equipment.
When the scraper has sticky powder during the powder spreading process, after the powder falls to the forming chamber during the knife return process, the layer thickness of the powder falling area will be too large. When there is layer data to be printed by the forming part in the powder falling area, the layer will be sintered and impermeable. Causes unfused defects in the parts, making the parts unqualified or even scrapped

Method used

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  • Squeegee cleaning device and application method of powder spreading type 3D printer
  • Squeegee cleaning device and application method of powder spreading type 3D printer
  • Squeegee cleaning device and application method of powder spreading type 3D printer

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no. 1 example

[0028] figure 1 It is the schematic diagram of the 3D printer of the first embodiment of the present invention. figure 2 , image 3 , Figure 4 It is a schematic diagram of the first embodiment of the 3D printer scraper cleaning device of the present invention. in, figure 2 It is a three-dimensional view of the 3D printer scraper cleaning device according to the first embodiment of the present invention, image 3 It is the front view of the 3D printer scraper cleaning device of the first embodiment of the present invention, Figure 4 It is a top view of the 3D printer blade cleaning device according to the first embodiment of the present invention.

[0029] Such as figure 1 As shown, the 3D printer blade powder cleaning device A disclosed in this embodiment is installed adjacent to the powder drop tank B. The 3D printer scraper C is cleaned of powder, and the powder drop tank collects the cleaned powder.

[0030] Such as figure 2 , image 3 and Figure 4 As shown...

no. 2 example

[0039] Figure 5 It is the schematic diagram of the 3D printer of the second embodiment of the present invention. Figure 6 It is a perspective view of a 3D printer scraper cleaning device according to the second embodiment of the present invention.

[0040] Such as Figure 5 As shown, the 3D printer scraper powder cleaning device A disclosed in this embodiment is installed adjacent to the powder drop tank B to clean the 3D printer scraper C, and the powder drop tank collects the removed powder.

[0041] Such as Figure 6 As shown, the 3D printer blade cleaning device disclosed in this embodiment includes a support frame 1 , a brush 5 , a screw 3 and a spring 4 . In this embodiment, the soft material is a brush, and the elastic device is a spring.

[0042] Such as Figure 6 As shown, the cross section of the support frame 1 is T-shaped, and is set on the printing platform of the 3D printer. The bottom of the support frame 1 is in contact with the 3D printer platform, and...

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Abstract

The invention discloses a scraper powder cleaning device of a powder spreading type 3D printer and an application method thereof, and a powder spreading type 3D printer. The scraper powder cleaning device of the powder spreading type 3D printer includes a support frame, soft materials, bolts and elastic devices. The soft material is fixedly installed above the support frame, and the bolt passes through the threaded hole on the support frame and the hollow part of the elastic device, and is installed on the side wall of the recovery cabin of the powder falling tank, that is, the recovery cabin is below the device. The elastic device and the bolts interact to secure the support frame near the recovery chamber. After one layer of powder coating is finished, the scraper hits the soft material, and the powder on the scraper is removed by friction between the scraper and the soft material. Prevent the powder from falling when the scraper returns to the knife, so that the material will not be sintered and the product will be unqualified or scrapped.

Description

technical field [0001] The present invention mainly relates to the field of 3D printing, in particular to a scraper cleaning device for a powder spreading type 3D printer and an application method thereof. Background technique [0002] At present, 3D printers have become a hot topic, and 3D printing technology itself is in a stage of rapid development. As a commonly used printer type in metal printing, powder-coated metal printers are becoming more and more popular Attention, and customers have higher and higher requirements for the quality of their formed products. [0003] The powder-spreading 3D printer finally obtains a product of a predetermined shape through a continuous cycle of layer-by-layer powder->print->powder->print. Powder spreading requires the use of a scraper to spread the powder into a uniform required thickness; printing is to use a focused laser beam with a certain rate density to irradiate the metal powder, so that the irradiated metal powder i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/105B33Y10/00B33Y30/00
CPCB33Y10/00B33Y30/00B22F10/00B22F12/67B22F10/73B22F10/20Y02P10/25
Inventor 计霞
Owner 飞而康快速制造科技有限责任公司
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