Steel strip surface roller coater

Abstract

The invention relates to a steel strip surface roll coater, which belongs to the technical field of cold roll roll coater equipment. The steel strip surface roller coater includes a coating roller, a liquid-taking roller and a driving motor. The two ends of the coating roller and the liquid-taking roller are respectively supported on the bearing housing through bearings, and the coating roller and the liquid-taking roller are located at the transmission side. The extension shaft is connected with the drive motor, and the feature is that: the bearings on the coating roller and the liquid-taking roller at the transmission side are all self-aligning floating bearings, and the bearings on the coating roller and the liquid-taking roller at the operating side are All are self-aligning roller bearings, and the bearing seat is fixed on a rotatable rotating platform. The steel strip surface roller coater can realize the free adjustment of one-sided pressure between the coating roller and the strip steel, and between the liquid-taking roller and the coating roller, and can effectively eliminate the wear of the coating roller surface and the inconsistent thickness of the two sides of the strip. The film thickness defect improves the uniformity and accuracy of the film thickness and ensures the stable quality of the coating film on the surface of the steel strip.

Description

technical field [0001] The invention relates to a roll coating equipment for the surface of a steel strip, in particular to a roll coating machine frame, which belongs to the technical field of cold rolling roll coating equipment. Background technique [0002] In order to meet the corrosion resistance requirements of home appliances and industrial equipment on the surface of steel plates, it also provides good surface coating properties, heat and humidity resistance, and fingerprint resistance for home appliances and automotive sheet products, and prevents white rust during transportation and processing. Defects, in the product post-processing process of the cold-rolled hot-dip galvanized production line, the roll coater is commonly used to apply the specified chemical coating to the surface of the strip. [0003] Existing roller coating processes such as figure 1 As shown, the roller coater is usually installed vertically and symmetrically with four rollers, and is mainly ...

AI Technical Summary

Problems solved by technology

[0005] At present, the existing roller coating machine has the following problems in the roller coating process: 1) When the thickness of the two sides of the strip is inconsistent or the surface of the coating roller is worn on one side, the pressure between the two sides and the strip, the coating roller When the pressure on both sides of the liquid-taking roller is not consistent, due to the characteristics of the linear guide rail, the existing roller coating machine cannot effectively adjust and control the pressure between the rollers on one side, making it difficult to control the uniformity and stability of the coating thickness , the film thickness is accurately reduced; 2) The pressure sensor is set between the roller bearing seat and the driving device, and feedbacks the pressure on the roller surface when it is close to the roller by indirectly detecting the reaction force from the roller bearing seat. The detected pressure value is very large Part of it is the friction force of the roller and its frame on the linear guide rail. Therefore, when the linear guide rail is jammed, the detection value of the roller surface pressure will be seriously out of frame, which directly affects the quality control of the coating film; 3) the existing roller coater When using the rollers and the welding seam, the rapid opening and closing of the coating roller and the strip steel is realized by controlling the air cylinder, resulting in a large impact force between the roller surfaces of the coating rollers on both sides when closing , the motor of the coating roller is blocked, and the polyurethane rubber on the surface of the coating roller often bursts

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