Improved two-roll leveling machine and its application method

Abstract

The invention discloses an improved two-roller temper mill and a using method, and belongs to the technical field of machining. The improved two-roller temper mill comprises a mill body, a lower working roller, a lower left crease-resisting roller, moving components, an upper left crease-resisting roller, a power component, an upper working roller, an upper right crease-resisting roller and a lower right crease-resisting roller. The power component is arranged on the mill body and provided with the upper working roller and the lower working roller. The upper left crease-resisting roller and the upper right crease-resisting roller are installed on the two sides of the upper working roller, the lower left crease-resisting roller and the lower right crease-resisting roller are installed on the two sides of the lower working roller, and the moving components are arranged on the upper left crease-resisting roller, the lower left crease-resisting roller, the upper right crease-resisting roller and the lower right crease-resisting roller. According to the improved two-roller temper mill, the upper crease-resisting rollers and the lower crease-resisting rollers are used alternately, and thus the upper working roller and the lower working roller alternately generate wrap angles with strip steel; and fatigue stripes can appear on the upper working roller and the lower working roller at the same time, and thus the purposes of reducing the times of replacing the working rollers, improving the productivity, lowering cost and preventing creases of the strip steel are achieved.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to an improved two-roll leveling machine. Background technique [0002] At present, one anti-wrinkle roll group is installed on the left and right sides of the lower work roll of the two-roll skin pass mill. When passing the pass, the anti-wrinkle roll group rises to make the strip steel and the upper work roll form a wrap angle, so as to prevent the strip steel from wrinkling. And this kind of design has caused the working life of upper working roll to be far less than the working life of lower working roll. After changing the upper working roll, after working for a period of time, the lower working roll continues to change, wasting time and manpower and material resources. [0003] It takes about 2 hours for each roll change of the two-roll leveling machine, and the grinding time for each pair of rolls is 10 hours, which is equivalent to wasting a lot of time on roll...

AI Technical Summary

Problems solved by technology

[0002] At present, one anti-wrinkle roll group is installed on the left and right sides of the lower work roll of the two-roll skin pass mill. When passing the pass, the anti-wrinkle roll group rises to make the strip steel and the upper work roll form a wrap angle, so as to prevent the strip steel from wrinkling. However, this design has caused the working life of the upper work roll to be far shorter than that of the lower work roll. After the upper work roll has been replaced, the lower work roll will continue to be replaced after working for a period of time, which wastes time, manpower and material resources.

[0003] It takes about 2 hours for each roll change of the two-roll leveling machine, and the grinding time for each pair of rolls is 10 hours, which is equivalent to wasting a lot of time on roll change, and the waste of time has led to industrial production. efficiency reduction

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