Setting method and device for roll bending force of six-roller cold-rolling mill

Abstract

The invention provides a setting method and device for the roll bending force of a six-roller cold-rolling mill and belongs to the technical field of plate and strip cold rolling. The setting method comprises the steps that an equipment parameter, a strip parameter and a rolling process parameter of the six-roller cold-rolling mill are acquired, input into a roll bending force setting model and calculated correspondingly, so that the optimal roll bending force setting value of a working roller and the optimal roll bending force setting value of a middle roller are obtained and output. The optimal roll bending force setting values can be output through the method according to the roll bending force setting model. According to the setting method and device for the roll bending force of the six-roller cold-rolling mill, on the basis of a plate shape mechanism model, the physical relation between various influence elements and the optimal roll bending force is deeply analyzed, the definite mathematic relation between the roll bending force of the middle roller and the roll bending force of the working roller is determined according to the equipment parameter of the rolling mill, the six-roller cold-rolling mill roll bending force setting model which is strict in theory, definite in physical significance, quick, reliable, precise and reasonable is built, the setting calculation precision is further improved through model self adaption, and the good product plate shape quality is ensured.

Description

technical field [0001] The invention relates to the technical field of plate and strip cold rolling, and relates to a mechanism model-based technology for setting the bending force of a six-high cold rolling mill. Background technique [0002] figure 1 It is a schematic diagram of a six-high cold rolling mill, which includes a work roll 2 (one upper and lower), an intermediate roll 3 (one upper and lower) and a back-up roll 4 (one upper and lower), and the roll bending includes the middle Roll bending and work roll bending, usually the work roll has the function of positive and negative roll bending, the middle roll has the function of positive roll bending, the role of the bending force setting model is to give an accurate and reasonable Work roll bending force and intermediate roll bending force setting value. [0003] figure 2 It is a schematic diagram of the production process and equipment layout of the most widely used five-stand six-high cold rolling mill. The str...

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Problems solved by technology

[0008] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a method and device for setting the bending force of a six-high

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