Barrel cover sealing device of 3D printing gas filter barrel

Abstract

The invention relates to a barrel cover sealing device of a 3D printing gas filter barrel. An intake pipe is arranged on the side surface of a filter barrel; a cover body is mounted in an upper port of the filter barrel; an exhaust pipe is arranged on the surface of the cover body; a left half sealing strip and a right half sealing strip are arranged in the edge joints of the cover body and the filter barrel; a first connecting head and a third connecting head are mounted at the two ends of the left half sealing strip; a second connecting head and a hanging hook are mounted at the two ends ofthe right half sealing strip; a connecting rod is movably mounted on the first connecting head through a first rotating shaft; an adjusting handle is movably connected to the third connecting head through a second rotating shaft; a rotating block is mounted at the middle part of the adjusting handle through a third rotating shaft; a rod piece at the back end of a pull rod is a thread rod; a threadhole is formed in the surface of the rotating block; and a triangular hanging ring is arranged at the front end of the pull rod. The barrel cover sealing device of the 3D printing gas filter barrel is simple in structure, fast in disassembly, firm in module connection and convenient to adjust.

Description

technical field [0001] The invention relates to the field of mechanical equipment related to 3D printing, in particular to a lid sealing device for a 3D printing gas filter barrel. Background technique [0002] In the metal 3D process, the metal powder formed by laser printing is easy to oxidize with oxygen in the air under high temperature conditions, resulting in a large amount of smoke and dust. Gas protection is used during the metal laser printing forming process to prevent the metal powder from being oxidized at high temperature. However, there will still be a small amount of smoke and dust, which will adhere to the window mirror under the disturbance of the hot air flow, or diffuse on the laser forming surface, directly affect the energy emitted by the laser, and affect the quality of the metal forming part from the surface. If the protective gas with smoke is directly sucked out of the molding room, it will not only cause a waste of protective gas, but also cause se...

AI Technical Summary

Problems solved by technology

However, there will still be a small amount of smoke and dust, which will adhere to the window mirror under the disturbance of the hot air flow, or diffuse on the laser forming surface, directly affect the energy emitted by the laser, and affect the quality of the metal forming part from the surface

If the protective gas with smoke is directly sucked out to the molding room, it will not only cause a waste of protective gas, but also cause serious pollution to the environment

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