Air-draft-free totally-closed powder supply center

Abstract

The invention discloses an air-draft-free totally-closed powder supply center which comprises a powder supply room, wherein the powder supply room is internally provided with a powder pumping device, a powder box and a powder supply trolley; the powder box comprises a powder box main body; a plurality of powder pumps connected with powder guns are arranged on the powder box main body; the powder pumps are connected with powder supply tubes which stretch into the powder box main body; the powder box main body is internally provided with a fluidization plate; a first powder tube which can be communicated with a powder bag and a second powder tube which can be communicated with a recycling device are arranged on the powder box main body; an air inlet is formed in the side surface of the powder box main body; an extrusion valve is arranged on the bottom surface of the powder box main body; and the powder bag is put on the powder supply trolley; and the powder pumping device is communicated with the first powder tube. Due to the structure, the totally-closed automatic powder supply is realized, and the powder is not only free of waste and pollution, but also is rapid in color change and high in efficiency.

Description

technical field [0001] The invention relates to a powder spraying device, in particular to a fully enclosed powder supply center without draft. Background technique [0002] Electrostatic powder spraying is a metal surface anti-corrosion decoration process. Compared with traditional paint finishing process, it has the characteristics of easy automatic production, good surface quality, economical and environmental protection, so it is widely used in industrial applications. [0003] During the powder spraying process, it is necessary to supply powder to the electrostatic spray gun. The previous powder supply method is to put the powder into the powder bucket to fluidize the powder, insert the powder supply pipe into the powder bucket, and deliver the powder from the powder supply pipe to the spray gun through the air pump. When changing the powder during the process, it is necessary to drive the powder supply pipe up through the cylinder, then remove the powder bucket, insert...

AI Technical Summary

Problems solved by technology

[0003] During the powder spraying process, it is necessary to supply powder to the electrostatic spray gun. The previous powder supply method is to put the powder into the powder bucket to fluidize the powder, insert the powder supply pipe into the powder bucket, and deliver the powder from the powder supply pipe to the spray gun through the air pump. When changing the powder during the process, it is necessary to drive the powder supply pipe up through the cylinder, then remove the powder bucket, insert the powder supply pipe into the corresponding air joint to clean the powder in the powder supply pipe, and manually hold the air gun to remove the powder. The powder outside the powder supply pipe is blown away. The above method is not only complicated and time-consuming, but also has low work efficiency, and the flying powder cannot be recycled, polluting the air and causing waste.

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