Spraying device that can improve the uniformity of spraying on curved surfaces

Abstract

A spraying device capable of improving uniformity of surface coating includes: an upper cover and a base; wherein the upper cover is provided with a support frame, a bottom of the support frame is provided with a can body, and the can body is provided with a coating material a plurality of small holes are arranged at the bottom, and the small holes are arranged in a concentric array; the base is coupled to the bottom of the upper cover, and an inclined platform is arranged on the upper end of the base, and at least three positioning posts are arranged on the inclined platform, and the positioning columns are provided Carrying a curved surface object to be sprayed, a handle is arranged on one side of the inclined platform, so that the handle angle of the curved object can be controlled and fixed by the handle, and the air source port and a power source are disposed on the base, wherein the air source port and the air source port The tank body is connected, and the gas source port is connected to a gas pressure pump, so that the gas pressure pump supplies a high pressure gas to the tank body, so that the paint in the tank body is pushed by the high pressure gas, and the The array of small holes is sprinkled to increase the uniformity of the spray.

Description

technical field [0001] The invention is a spraying device which can improve the uniformity of spraying on curved surfaces, especially a spraying device which can improve the uniformity by spraying titanium dioxide (TiO2) on curved surface objects. Background technique [0002] Press, the curved cover of the mobile phone. During the manufacturing process, when the curved cover of the mobile phone to be tested is used for scanning, its surface needs to be covered with titanium dioxide (TiO2) to prevent the blue light projected by the machine from directly penetrating the object to be tested, instead of Reflected back to the lens on both sides. [0003] The current method is to attach titanium dioxide (TiO2) to the surface of the object to be measured through a spray gun. Although a certain distance will be kept when spraying, so that the atomized paint can be covered evenly, but the paint is still thicker in the area near the center of the spray gun mouth, and the difference ...

AI Technical Summary

Problems solved by technology

Although a certain distance will be kept when spraying, so that the atomized paint can be covered evenly, but the paint is still thicker in the area near the center of the spray gun mouth, and the difference in personal spraying techniques leads to the unevenness of the object to be tested after spraying. There is a certain degree of difference in thickness and uniformity, that is to say, the paint will be concentrated in the center of the nozzle. If the technique is not good enough, it will even be worse than 50um, which is quite inconvenient

[0004] It can be seen that there are still many deficiencies in the above-mentioned commonly used items, which are not really good designers and need to be improved urgently.

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