Warping pressing device and method used in strip steel rough rolling process

Abstract

The invention discloses a warping pressing device and method used in a strip steel rough rolling process and relates to the technical field of steel rolling automatic control. A warping pressing device is mounted above a roller bed and comprises a pressing block, a chain, a steel wire rope, a bracket, a motor, a rope disc and a pulley, wherein the pressing block is connected to one end of the steel wire rope through the chain; the pulley is fixedly mounted on the bracket, and the other end of the steel wire rope penetrates the pulley and is fixedly connected to the rope disc; the rope disc isfixedly mounted on the motor, and the steel wire rope is pulled by the motor, the rope disc and the pulley. The warping height of the strip steel is determined by means of a warping and buckling detection device arranged next to the roller bed, and whether the wrapped strip steel can enter the racks to be rolled or not according to the height of follow-up rack inlet equipment. If the wrapping height exceeds the height of follow-up rack inlet equipment, the strip steel is leveled automatically and rolled subsequently by controlling the wrapping pressing devices arranged above the roller bed between the two racks, so that steel scrap and disorderly close-down are reduced.

Description

technical field [0001] The invention relates to the technical field of steel rolling automatic control, in particular to a device and method for warping a head used in the rough rolling process of strip steel. Background technique [0002] During the rolling process, the hot-rolled strip steel is affected by factors such as the temperature difference between the upper and lower surfaces of the slab, the difference in the diameter of the upper and lower rolls, the difference in speed, and the deformation rate, which will cause the slab to warp or buckle during the rolling process. The so-called warping and buckling refers to the upward or downward bending formed on the exit side after the head of the strip is bitten by the roll. The upward bending is called warping, and the downward bending is called buckling. When the rough rolled billet warps and buckles reach a certain level, the harm is very great, for example, it will affect the biting of the next pass, and in severe cas...

AI Technical Summary

Problems solved by technology

[0008] Aiming at the defect problem that the warped head of the strip steel occurs during the rolling process of hot-rolled strip steel and cannot be quickly dealt with, the present invention aims to propose a device and method for warping the head of the strip used in the rough rolling process of the strip steel. The buckle detection device installed next to the roller table determines the height of the buckle, and judges whether the buckle strip can enter the rack for rolling according to the height of the entrance equipment of the subsequent rack. If the height of the buckle exceeds the rear rack The height of the entrance equipment is automatically leveled by controlling the warping head device above the roller table between the two racks before subsequent rolling, reducing scrap steel and downtime due to failure, and also preventing operators from operating errors. Fault expansion and damage to equipment

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