Automatic rolling mill intermediate roll channeling control method

Abstract

The invention discloses an automatic rolling mill intermediate roll channeling control method, and relates to the technical field of cold-rolled steel strips. According to the achieving method for thecontrol method, firstly, the online roll channeling condition is met under the normal production work condition; secondly, the intermediate roll channeling playing position is determined; and thirdly, the roll channeling position is controlled. The automatic rolling mill intermediate roll channeling control method can solve the problems that in the prior art, speed control over a rack is not good, the roll channeling position is not accurately positioned, consequently, a rolling mill cannot be online adjusted, the intermediate roll channeling put-into-use rate is not high, and effect playingof the intermediate roll channeling function is restrained.

Description

technical field [0001] The invention relates to the technical field of cold-rolled steel strips, in particular to a control method for automatic roll shifting of intermediate rolls in a rolling mill. Background technique [0002] At present, the first stand and the second stand in the rolling mills of most steel rolling enterprises are mostly composed of backup rolls, intermediate rolls and work rolls, and these two stands belong to UCM rolling mills, which have the function of intermediate roll shifting. The force is provided by the hydraulic cylinder acting on the bearings at both ends of the roll. Since the width of the rolled piece is smaller than the width of the roll, it is easy to cause deflection and deformation due to the cantilever principle. The larger the width difference is, the more obvious it is, so the side wave problem is very easy to occur during the rolling process. The cantilever area can be eliminated through the roll shifting of the intermediate roll, s...

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Problems solved by technology

[0003] The object of the present invention is to provide a control method for automatic roll shifting of intermediate rolls in rolling mills, which can solve the problem of inaccurate positioning of roll shifting due to poor control of the speed of the frame in the prior art, so that the rolling mill cannot be adjusted on-line. As a result, the use rate of the intermediate roll shifting is not high, which restricts the effect of the intermediate roll shifting function.

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