Steel strip surface roll coating machine

Abstract

The invention relates to a steel strip surface roll coating machine, and belongs to the technical field of cold roll coating equipment. The steel strip surface roll coating machine comprises a coatingroller, a liquid take-up roller and a driving motor, the two ends of each of the coating roller and the liquid take-up roller are supported on bearing seats through bearings, and extending-out shafts, located at the transmission side, of the coating roller and the liquid take-up roller are connected with the driving motor. The steel strip surface roll coating machine is characterized in that thebearings located at the transmission side and on the coating roller and the liquid take-up roller are center-adjusting floating bearings, the bearings located on the operation side and on the coatingroller and the liquid take-up roller are self-center-adjusting roller bearings, and the bearing seats are fixed on a rotatable rotating platform. The steel strip surface roll coating machine can realize free adjustment of the single-side pressure between the coating roller and strip steel and between the liquid take-up roller and the coating roller, film thickness defects caused by abrasion of theroller face of the coating roller and the coincident thicknesses of the two sides of the strip steel can be effectively eliminated, the uniformity and precision of the film thickness are improved, and the stable quality of a coating film on the surface of the steel strip is ensured.

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 ...

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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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