Oil scraping device

Abstract

The invention relates to an oil scraping device. The device comprises a plurality of groups of oil scraping rollers, upper mounting frames, lower mounting frames, lifting drivers, a first scraping mechanism and first purging mechanisms. Each oil scraping roller group is composed of an upper roller assembly and a lower roller assembly opposite to the upper roller assembly, the upper roller assemblies are matched with the upper mounting frames correspondingly, and the lower roller assemblies are matched with the lower mounting frames correspondingly. The lifting drivers are connected with the upper mounting frames and / or the lower mounting frames correspondingly. The first scraping mechanism is located at the inlet end of the whole oil scraping device. The first purging mechanisms are arranged on one sides of the oil scraping rollers correspondingly and each comprise a first pipeline and first spray nozzles used for performing gas purging on the surface of strip steel. The first spray nozzles are arranged on the corresponding first pipelines. Each first purging mechanism further comprises one or more second spray nozzles used for performing gas purging on roller bodies of the oil scraping rollers. The second spray nozzles are connected with the corresponding first pipelines. The oil scraping device has the advantage that the oil scraping efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of strip steel oil scraping, in particular to an oil scraping device. Background technique [0002] The rolling mill is used to roll strip steel. During the rolling process, a large amount of rolling oil needs to be sprayed for cooling, lubrication and cleaning. After the rolling is completed, if the rolling oil is not wiped clean, watermark defects will be formed on the surface of the strip steel. , If the rolling oil remains on the surface of the strip for a long time, the moisture in the rolling oil will rust the surface of the strip after a long time, forming surface rust defects, and the defective strip users cannot accept it. Therefore, the oil scraper has become an important mechanism of the rolling mill. [0003] CN203370843U discloses a novel rolling mill oil scraping mechanism, comprising an upper platform frame and a lower platform frame, and an oil scraping roller capable of rotating around its ...

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned prior art is provided with an air knife assembly on one side of each oil scraper roller to remove the rolling oil accumulated on the oil scraper roller, the above-mentioned air knife assembly only blows and can only act on the oil scraper roller and the belt. However, during the working process of the oil scraping roller, the rolling oil is bound to adhere to the oil scraping roller. With the high-speed rotation of the oil scraping roller, a part of the rolling oil is absorbed by the centrifugal force of the oil scraping roller. It is thrown out, causing the rolling oil to splash, and the other part continues to rotate with the oil scraping roller. The oil scraping roller is difficult to scrape off and then move the rolling oil on the surface of the strip.

[0005] In addition, although the above-mentioned steel strip has been scraped by the oil scraping roller, moisture still remains on the surface of the steel strip output from the oil scraping device, that is, the above-mentioned device does not have the function of removing moisture on the surface of the strip steel, so the surface of the steel strip output In a wet state, there are still defects that make the surface of the strip rust

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