Air duct system and printer with the same
An air duct and aisle technology, applied in the 3D (three-dimensional) field, can solve the problems of burning out the laser transmission lens, smoke and dust in the air duct system, and affecting the laser transmittance of the printing quality, so as to avoid dust and improve the printing quality Effect
Active Publication Date: 2018-01-19
GUANGDONG HANBANG 3D TECH CO LTD +1
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[0015] see figure 1 A preferred embodiment of the air duct system of the present invention includes a molding chamber 10, an inlet pipe 50 for filling protective gas into the molding chamber 10, and an air outlet pipe 40 for extracting gas from the molding chamber 10, wherein the molding chamber A first guide part 30 connected to the air inlet pipe 50 and a second guide part 20 connected to the air outlet pipe 40 are disposed in the interior of the housing 10 . In this embodiment, powder to be formed is laid in the forming chamber 10 , and the powder to be formed is used for sintering. The shielding gas can be an inert gas so as not to react with the powder to be formed. In this embodiment, a circulating pump 903 can be used to fill the molding chamber 10 with protective gas, and the gas extracted from the gas outlet pipe 40 can contain protective gas and possible oxygen. The gas extracted from 40 passes through a deoxygenation device 905 to remove the oxygen present in the ...
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An air duct system, comprising a molding chamber, an air inlet pipe for filling protective gas into the molding chamber, and an air outlet pipe for extracting gas from the molding chamber, wherein the molding chamber is provided with a first guide part connected to the air inlet pipe And a second guide part connected to the air outlet pipe, the first guide part includes a plurality of guide channels arranged at intervals, the intake pipe has at least one branch of the intake pipe, each branch of the intake pipe is connected to the first guide channel The internal diversion channel conflicts. The invention also provides a printer with the air duct system. The air duct system of the present invention and the printer with the air duct system achieve the purpose of buffering by dividing the air intake pipe into several air intake pipe branches, and through the corresponding air guide channels in the first air guide part, so as to avoid possible damage caused by excessive flow velocity of the protective gas. This quickly leads to dust in the build chamber, improving print quality.
Description
technical field [0001] The present invention relates to an air duct system and a printer with the air duct system, in particular to a 3D (three-dimensional, three-dimensional) printer with the air duct system. Background technique [0002] 3D printer, also known as three-dimensional printer, is a kind of rapid prototyping technology, based on digital model files, using metal or non-metallic materials to form powder, melting / melting the laid flat powder to be formed layer by layer, and then Solidification build-up molding to construct three-dimensional solid printing equipment. A general 3D printer includes a molding chamber. During 3D printing, in order to prevent the high oxygen content in the molding chamber and the reaction of the powder to be molded with oxygen, the molding chamber is generally filled with inert gas through the air duct system. However, when filling inert gas, if the speed of filling the gas is not appropriate, the powder to be formed may be blown up, c...
Claims
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IPC IPC(8): B29C64/20B22F3/105B33Y30/00
CPCB33Y30/00B22F10/00B22F10/322B22F10/28B22F12/38B22F12/70B22F10/77Y02P10/25
Inventor 刘建业胡高峰梁崇智徐卡里邓玉柱牛留辉李栖凤朱昊威
Owner GUANGDONG HANBANG 3D TECH CO LTD