Cold rolling mill double-backing cloth bearing roller linkage pressing structure

Abstract

The invention belongs to a linking and downwards-pressing structure for a double-back lining bearing roller for a cold rolling mill. The utility model adopts the technical proposal that four upper and lower back lining bearing rollers positioned at the upper, the lower, the left and the right outer ends in the roller system of the cold rolling mill are directly fixed on an integrated machine frame; two lower middle back lining bearing rollers are mounted in a lower double-backing lining bearing roller box; two upper middle back lining bearing rollers are mounted in an upper double-backing lining bearing roller box side by side; the downward depressing action of the upper double-back lining bearing roller box is finished under the drive of a hydraulic cylinder; two driving rollers are respectively arranged between the two upper back lining bearing rollers and the two lower back lining bearing rollers; a middle roller is respectively positioned between the two driving rollers; and the middle rollers and the driving rollers drive two twitching rollers arranged side by side. The linking and downwards-pressing structure overcomes the defects that travel between the clearance between the rollers and a screwdown cylinder is not linear, the swinging adjustment cannot be carried out on the roller system, and the roller system is heaveyand has small grinding amount. The linking and downwards-pressing structure has the advantages of reasonable structural design, large rigidity of a screwdown mechanism, large rolling force, small inertia of the screwdown mechanism, improved control accuracy and the response speed of screwdown displacement, realization of swinging adjustment of the roller system, great reduction of rolling consumption, and beneficial improvement of work efficiency.

Description

technical field [0001] The invention belongs to a 20-roller cold rolling mill double-backing bearing roller linkage pressing down structure. Background technique [0002] China is a big steel country, but not yet a steel power. While there is a surplus of ordinary steel, cold-rolled sheets with high rigidity materials (such as stainless steel, silicon steel, etc.), high-precision dimensions, and high-quality plate shapes must still be imported. The high-rigidity and high-precision cold rolling mills used to produce such products are all imported. In the field of non-ferrous metals, there are no cold rolling mills for rolling wide-width copper foil (thickness ≤ 0.05mm), and small ultra-precision high-rigidity rolling mills for rolling superhard materials such as titanium, titanium alloys, tungsten, and molybdenum. Off-the-shelf equipment is available. At present, the existing international 20-roll cold rolling mills have three modes of pressing mechanisms: one is the ZR ro...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to design a double-backed bearing roll linkage down-pressing structure of a cold rolling mill, which can overcome the shortcomings of the non-linear relationship between the roll gap and the stroke of the press-down cylinder, the inability to swing and adjust the roll system, and the small amount of regrinding of the roll system. It has reasonable structure design, high rigidity of the pressing mechanism, large rolling force, and small inertia of the pressing mechanism, which improves the control accuracy and response speed of the pressing displacement, realizes the swing adjustment of the roll system, greatly reduces the consumption of the rolls, and is conducive to improving Advantages of availability

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