A production line for printing paint on metal plates and its printing process

Abstract

The invention discloses a production line for printing paint on a metal sheet material. The production line comprises a metal plate unreeling mechanism (1), an ash wiping device, a left suction box (2), an automatic printing device (3), a right suction box (4), a traction mechanism, a paint drying device (5) and a finished product reeling mechanism (6), which are arranged in sequence from left to right; an optical fiber sensor (22) is mounted at the lower part of a screen mesh plate (21) and is located at the center of the screen mesh plate (21); the traction mechanism is composed of a rack (23), a fixed shaft (24), a rolling shaft (25) which is rotatably mounted in the rack (23) and a motor (26) connected with the rolling shaft (25); the fixed shaft (24) is arranged on the rack (23) and is arranged above the rolling shaft (25); and the paint drying device (5) is internally provided with a conveyor belt. The production line for printing the paint on the metal sheet material has the beneficial effects that continuous printing of the paint is realized, the paint can be accurately printed on a specified position of the metal sheet material, and the automation degree is high.

Description

technical field [0001] The invention relates to the technical field of printing paint on metal plates, in particular to a production line for printing paint on metal plates and a printing process thereof. Background technique [0002] Print various patterns of paint on the surface of the metal plate. The paint can be used as a means of beautification, anti-corrosion and insulation. The metal plate printed with paint is usually applied to electronic products. The structure of the metal plate is as attached figure 1 As shown, there are multiple positioning holes distributed on the two edges of the metal plate. The paint is printed to the specified position on the metal plate through the detection holes. During the printing process, cumulative errors will gradually occur, and the paint position will not be accurate, which will affect the printing quality and increase the reject rate. [0003] In addition, when the metal plate is painted, due to the poor control of the thicknes...

AI Technical Summary

Problems solved by technology

[0002] Print various patterns of paint on the surface of the metal plate. The paint can be used as a means of beautification, anti-corrosion and insulation. The metal plate printed with paint is usually applied to electronic products. The structure of the metal plate is as attached figure 1 As shown, there are multiple positioning holes distributed on the two edges of the metal plate. The paint is printed to the specified position on the metal plate through the detection holes. In the process, cumulative errors will gradually occur, and the painting position will be inaccurate, which will affect the printing quality and increase the reject rate

[0003] In addition, when the metal plate is painted, due to the poor control of the thickness of the paint layer, the surface of the painted metal plate is often uneven, which affects the appearance, and at the same time cannot achieve the best anti-corrosion effect of the metal plate

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