Production line for roller-coated color steel plate

Abstract

The invention provides a production line for roller-coated color steel plates. Steel bands at all process sections are flattened through a plurality of tension rollers and stable and constant tension is particularly provided for a roller coating section. Moreover, since corona treatment is conducted to the surfaces of the steel bands before the steel bands enter the roller coating section to form a plurality of pits on the surfaces of the steel bands, the surface roughness of the steel bands is improved, the adhering force between the surfaces of the steel bands and color pattern layers is improved, the color pattern layers are not apt to peel off and the formability of the steel bands is improved.

Description

technical field [0001] The invention relates to a production line for color steel plates, in particular to a production line for roller-coated color steel plates, which belongs to the field of color steel plate manufacturing. Background technique [0002] Cold-rolled sheets and hot-rolled sheets are mainly used as raw materials in the existing domestic color steel production. The traditional color steel plate production is divided into three production lines: firstly, use a transverse cutting line to uncoil and level, cut the steel plate to the required length, and then stack the steel plates to the required height; then use A roller coating line, the steel plate is sent to the sandblasting and derusting machine by conveying, and each steel plate is sandblasted and derusted, and then sent to the roller coating line for roller coating; after roller coating, the dried steel plate is sent to The roller machine performs roller forming. After forming, it is cut to length and fou...

AI Technical Summary

Problems solved by technology

The above-mentioned color steel plate production line has the following problems: continuous operation cannot be performed during the entire production process, and the intermediate transportation link is complicated, resulting in low production efficiency

[0006] Yet the defective that this kind conventional gravure printing machine exists is:

[0007] First, when printing, the ink not only enters the fine depressions of the printing plate cylinder, but also forms on the cylinder around the depressions. In this way, in order to remove the ink located around the depressions on the cylinder, it is necessary to manually remove the above depressions before transferring. removed before entering the transfer step, which greatly reduces productivity

[0008] Second, the printing plate cylinder, ink supply cylinder and impression cylinder are all made of steel plates. Due to the rigid contact between the steel plates, there are often gaps when they are in contact, which cannot be tightly seamed, resulting in the phenomenon of "missing transfer" during the transfer process, that is, incomplete printing. transfer, resulting in an incomplete pattern

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