A method for controlling the roll changing position of the upper roll balance cylinder of a universal section mill

Abstract

The invention discloses a control method for a roll changing position of an upper roll balancing cylinder of a universal section steel rolling mill. A control program for the roll changing positions of the upper roll balancing cylinder of the universal section steel rolling mill, which is adopted by the control method, includes that a roll changing position setting unit of the upper roll balancingcylinder of the universal section steel rolling mill is formed by functional blocks XZSPWC01-XZSPWC07, functional blocks XZSPWC08-XZSPWC18 and functional blocks XZSPWC28-XZSPWC39 form a roll changingposition out-of-tolerance control unit for the balance cylinders at the two sides of the upper roll of the universal section steel rolling mill, and functional blocks XZSPWC19-XZSPWC27 form a liftinginterlocking control unit for the balance cylinders at the two sides of the upper roll of the universal profile steel rolling mill. At the roll changing operation, the control program for the roll changing positions of the upper roll balancing cylinder of the universal section steel rolling mill automatically performs lifting interlocking control on the actual positions of the balancing cylindersat the two sides of the upper roll of the mill based on the roll changing set positions until the actual positions of the balance cylinders at the two sides of the upper roll of the universal sectionsteel rolling mill are in an allowed deviation range of the roll changing positions, the roll changing workload and the working pressure of an operator are reduced, the service life of the upper rollbalancing cylinder is greatly prolonged, and the problem that an upper roll balancing beam is impacted by an upper roll bearing seat during the roll changing process is completely eradicated.

Description

technical field [0001] The invention belongs to the technical field of electric transmission control, and more specifically, the invention relates to a method for controlling the roll changing position of an upper roll balance cylinder of a universal section mill. Background technique [0002] Masteel's large H-beam production line is the first medium and large-size H-beam production line imported from Germany's Mannesmann Dimag (DEMAG). The rolling mill of this production line adopts a tandem rolling mill layout consisting of a two-roll reversible billet breaker BD, three reversible universal section steel roughing mills arranged in U1-E-U2 and a universal finishing mill UF, that is, "1 -3-1" arrangement. The three stands of the reversible H-beam universal roughing mill in this production line are 1# universal roughing mill (U 1 ), edger (E), 2# universal roughing mill (U 2 ) and the balance mechanism of the upper horizontal roll of the universal finishing mill UF are co...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a method for controlling the roll changing position of the upper roll balance cylinder of a universal section mill, aiming to solve the problem that the roll bearing seat may hit the upper roll balance beam when the roll system enters the line during the roll changing operation

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