Balanced pressure color steel plate plastic coating equipment

Abstract

The invention relates to plastic-coating equipment for color steel plates, and discloses a plastic-coating equipment for balanced and equal pressure color steel plates. The upper part of the mold is provided with a powder pipe interface (21), the lower part of the mold cavity is provided with a spray gun interface (11), and the powder pipe interface (21) and the spray gun interface (11) communicate with the cavity (22) respectively. In the present invention, by setting a rotating homogenizing device, the powder fed into the powder pipe is evenly redistributed through the rotating homogenizing device, and then output through the spray gun interface, thereby solving the problem of avoiding the steel plate coating spraying caused by the difference between the powder pipe and the spray gun Due to the disadvantage of increased thickness in a certain fixed area, the surface coating of the steel plate obtained by spraying is more uniform, which is conducive to the later coiling of the steel plate and the later pressing of the steel plate.

Description

technical field [0001] The invention relates to color steel plate plastic coating equipment, in particular to a balanced pressure color steel plate plastic coating equipment. Background technique [0002] The traditional plastic-coated steel plate adopts the spraying method of multiple gun heads. Due to the inconsistent wear, airflow and wear of the nozzles of each spray gun, after the gun heads work for a long time, the original spray gun heads with severe wear and a large amount of powder are sprayed. As the working time increases, the wear is more severe, and the amount of powder sprayed is more. As a result, during the plastic coating process of the steel plate, the part where the spray gun wears more seriously corresponds to the location where the steel plate is sprayed with a thicker coating thickness. When the thickness of the steel plate tends to increase on a certain side in the flowing water, the cross-section of the coating thickness of the steel plate is triangu...

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Problems solved by technology

[0003] The invention aims at the phenomenon that the thickness of one side of the steel plate after spraying is greater than the thickness of the other side due to the nozzle wear, air flow and wear of each spray gun during the plastic coating process of the steel plate in the prior art. It is beneficial to the coiling of the steel plate in the later stage, and it is easy to cause the steel plate to be wrinkled in the process of pressing. It provides a method by setting a rotating homogenizer, and re-distributing the powder into the powder pipe evenly through the rotating homogenizer, and then passing through Spray gun interface output, so as to avoid the difference between the powder pipe and the spray gun, resulting in the steel plate coating spraying caused by the increase in the thickness of a fixed area and other defects, such as equal pressure color steel plate plastic coating equipment

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