Powder coating device

Abstract

The invention relates to a powder coating device. The device comprises a powder supplying unit, a spraying unit and a powder recycling unit which are connected in series; the spraying unit comprises aspraying chamber and a pair of lifting spraying mechanisms which is separately arranged on two sides of the spraying chamber; each lifting spraying mechanism comprises a lifter and a spraying gun group which is arranged on the lifter and extends into the spraying chamber; each spraying gun group communicates with the powder supplying unit; the powder recycling unit comprises a cyclone separationrecycling mechanism which communicates with the bottom of the spraying chamber and a second separation mechanism which communicates with the cyclone separation recycling mechanism; powder in the powder supplying unit is sprayed on the surface of a workpiece in the spraying chamber through the spraying gun groups; and residual powder in the spraying chamber is recycled by the powder recycling unitand is conveyed to the powder supplying unit. Compared with the prior art, the powder coating device has the advantages that the powder can be uniformly sprayed on the surface of the workpiece; thickness of a coating film is convenient to control; the powder can be recycled effectively; and pollution to the environment is reduced.

Description

technical field [0001] The invention belongs to the technical field of powder coating, and relates to a powder coating device. Background technique [0002] Powder coating is a method of powder spraying. By spraying powder on the surface of the workpiece, it can have the effect of protection and decoration, and can also add other special functions. The powder coating process is generally: use powder spraying equipment to spray powder coating on the surface of the workpiece after surface treatment, so that the powder is evenly adsorbed on the surface of the workpiece to form a powder coating, and then the powder coating is baked at high temperature Leveling and curing into final coatings with various effects. After the workpiece is coated with powder, its mechanical strength, adhesion, corrosion resistance, aging resistance, etc. are significantly improved, and the effect is better than that of the painting process, but the cost is lower than that of the painting process. T...

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Problems solved by technology

[0003] During the use of the existing powder coating device, it is often difficult to control the powder spraying process on the surface of the workpiece, which makes the powder spraying on the surface of the workpiece uneven, or the coating thickness is not up to standard due to too much or too little spraying amount , so that the workpiece after coating cannot meet the requirements

In addition, the effect of separation and recovery of powder is poor, and it is easy for the powder to overflow the device and enter the atmosphere, causing air pollution, or the powder deposited in the spraying room cannot be discharged in time, which affects the circulation of the powder in the device, and even May cause dust explosion

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