Smoke suction and exhaust system for 3D printer

Abstract

The invention provides a smoke suction and exhaust system for a 3D printer. The system comprises a forming bin and an exhaust system, the forming bin comprises a bin body, an air suction opening is formed in a sidewall of the bin body, the air suction opening is in a long strip shape and extends horizontally, the suction direction of the air suction opening is aligned to a smoke raising area in the bin body, the exhaust system comprises an air suction cover and an exhaust pipe, the air suction air opening is covered by a groove-shaped cover shell, a cavity of the groove-shaped cover shell is divided into a plurality of exhaust flow channels which do not communicate with each another, air suction ports of all the exhaust flow channels are located at an opening of the groove-shaped cover shell and are linearly arranged in the length direction of the groove-shaped cover shell, exhaust ports of all the exhaust flow channels are located at the same end in the length direction of the groove-shaped cover shell, and an air-inlet end of the exhaust pipe communicates with the exhaust ports of all the exhaust flow channels. According to the system, a uniform and stable air suction wind field can be formed in the bin body, and it is effectively guaranteed that all smoke in the smoke raising area is continuously, stably and timely discharged out of the bin body.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a smoke suction and exhaust system for a 3D printer. Background technique [0002] Metal additive manufacturing mainly involves technologies such as laser three-dimensional forming, selective laser melting forming, laser forming repair, and additive manufacturing equipment manufacturing. The use of additive manufacturing technology can realize the direct forming of metal structural parts in the fields of aviation, automobile manufacturing, mold processing, etc., so it has a wide range of applications and needs in aviation, aerospace, energy and chemical industry, automobile manufacturing, mold processing, and medical treatment. In the process of forming metal parts with selective laser melting molding equipment, the cleaning of the protective lens of optical elements in the molding room has an important impact on the quality and accuracy of the molded parts. [0003] In the ...

AI Technical Summary

Problems solved by technology

However, the effect of argon annular purging is not ideal, and the protective lens still needs to be wiped and cleaned regularly by the operator; in order to maintain a good cleaning effect, the argon gas needs to be kept open during the work process, and the gas consumption is large; if the parts are processed Larger sizes require longer cycles

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