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3D printer and spreading method thereof

A 3D printer and printer technology, applied in the direction of additive manufacturing, additive processing, etc., can solve the problems of cumbersome adjustment steps and low accuracy of scraper adjustment

Active Publication Date: 2021-04-27
FOSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Based on this, in order to solve the problems of low scraper adjustment accuracy, cumbersome adjustment steps and slack in traditional material spreading devices, the present invention provides a 3D printer, the specific technical solution of which is as follows:

Method used

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  • 3D printer and spreading method thereof
  • 3D printer and spreading method thereof
  • 3D printer and spreading method thereof

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with its embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and do not limit the protection scope of the present invention.

[0038] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only and are not intended to represent the only embodiments.

[0039] Unless otherwise defined, all technical and scientific t...

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Abstract

The invention provides a 3D printer. The 3D printer comprises a spreading arm, a scraper assembly and at least two adjusters. The at least two adjusters are arranged in the length direction of the scraper assembly. Each of the adjusters comprises a shell, a connecting shaft and a bearing sleeve. The shell is connected with the scraper assembly. The bearing sleeve is fixedly connected into the shell, the connecting shaft sequentially penetrates through the spreading arm and the shell and is inserted into the bearing sleeve, and the connecting shaft is in threaded connection with the spreading arm. The powder spreading effect of a scraping block of the scraper assembly is effectively improved, the abrasion speed of the scraping block of the scraper assembly is decreased, then the printing cost is saved, and the 3D printer has the advantages that operation is easy, the adjusting precision is high, the powder spreading precision is greatly improved, then the printing precision is improved, and the quality of formed metal parts is higher. The invention further provides a spreading method based on the 3D printer.

Description

technical field [0001] The invention relates to the technical field of 3D printers, in particular, to a 3D printer and a material laying method thereof. Background technique [0002] Selective Laser Melting (SLM) technology is a 3D printing technology that can directly form metal parts with close to complete density and good mechanical properties. At present, when the SLM type metal 3D printer performs the printing operation, a layer of metal powder is first spread on the forming platform through the scraper on the laying device, and the scraper is used to scrape and spread the powder. When the scraper is used for a certain period of time, it will wear out, resulting in a reduction in the thickness accuracy of the powder layer, thereby reducing the printing accuracy. [0003] At present, there are two methods to solve the problem of scraper wear of laser selective melting SLM equipment. According to the wear degree of the scraper, when the scraper is severely worn, the fir...

Claims

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Application Information

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IPC IPC(8): B22F12/67B22F10/28B33Y10/00B33Y30/00
CPCB33Y30/00B33Y10/00Y02P10/25
Inventor 陈敏生刘杰范彦斌郑泽锦亢志颖朱涛黎泳怡
Owner FOSHAN UNIVERSITY
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