Three-dimensional printing forming sealing device

Abstract

The invention discloses a three-dimensional printing forming sealing device, which includes a working platform, a supporting mechanism with two opening ends and a sealing sleeve. One opening end of the supporting mechanism is arranged on the operating surface of the working platform, and the sealing sleeve is arranged on the other opening end of the supporting mechanism in a sealed mode; and the supporting mechanism is further provided with an air inlet and an air outlet, the sealing sleeve is provided with a connecting port, the connecting port is connected with a spindle of a three-dimensional printing laser head in a sealed mode, and the air inlet and the air outlet communicate with the gas environment inside and outside the sealing sleeve. By using the deformable sealing sleeve, the internal volume of the sealing device is changed during air intake and air exhaust, original gas in the sealing device can be fully replaced with protective gas in the sealing device, and the sealing device is internally kept dry by multiple cycles of air intake and exhaust, so that anti-steam performance and anti-oxidation gas explosion performance can be improved when the three-dimensional printing laser head conducts three-dimensional printing work.

Description

technical field [0001] The invention relates to the field of three-dimensional printing, in particular to a three-dimensional printing forming and sealing device. Background technique [0002] 3D printing (3DP) is a kind of rapid prototyping technology. It is a technology based on digital model files and using bondable materials such as powdered metal or plastic to construct objects by layer-by-layer printing. It is often used to make models in the fields of mold manufacturing and industrial design, and is gradually used in the direct manufacture of some products. There are already parts printed using this technology. The technology has applications in jewelry, footwear, industrial design, architecture, engineering and construction (AEC), automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineering, firearms, and others. [0003] 3D printing typically takes place in sealed chambers because many by-products of the process...

AI Technical Summary

Problems solved by technology

[0003] 3D printing usually takes place in a sealed room, as many by-products of the process can be harmful or toxic

However, this technical solution only makes the whole process closed, eliminating the possibility of it encountering the air. It is also necessary to use a desiccant in combination to keep the consumables relatively dry for a long time. However, the requirements for the protective gas are different in the processing of different materials. Moreover, the design problem of the inflation and exhaust circulation device has not been well resolved, resulting in a long time for each inflation and exhaust, so that it is possible to achieve the inert environment required by 3D printing

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