A control method and application of anti-tower defect of asymmetrical side guide plate of coiler

Abstract

The invention relates to an anti-tower shaped defect control method for a coiler's asymmetric side guide plate. The method includes: deflecting the transfer rollers of a coiler's transfer roller group, keeping the opening of a driving side guide plate at the level of strip steel width / 2 and the opening of a work side guide plate in the range of strip steel width / 2+60mm-strip steel width / 2+100mm, making a roll table rotate to push the strip steel forward and generate a divergent pushing force simultaneously so as to make the strip steel operate closely to the driving side guide plate, when the strip steel head completely enter the side plates, letting the work side guide plate quickly draw close to the driving side guide plate to realize close, and keeping the driving side guide plate still till the strip steel head is bitten into a subsequent pinch roll group. The method provided by the invention can reduce tower shaped defects of the strip steel, improve coil quality, has no need for recoiling and repair, and saves manpower and material resources. And the method has small investment in equipment hardware transformation, only needs to make angular adjustment on part of the roll table, and other improvements can be achieved by modifying software. Thus, the method is suitable to the field of preventing steel coil tower shaped defects by coilers in various steel production.

Description

technical field [0001] The invention relates to a control method for object operation, in particular to a control method for an asymmetric side guide plate of a coiler applied in the field of iron and steel production, which can prevent tower-shaped defects of steel coils. Background technique [0002] At present, a coiler is widely used in the hot rolling production lines of various iron and steel production enterprises. The coiler is an important equipment of the hot rolling production line. The last process of the production line is to roll the rolled finished hot-rolled steel strip into coils. The coiler under the prior art mainly includes main equipments such as roller table, side guide plate, pinch roll, three help rolls and reel, also comprises some auxiliary coiling equipments in addition. Among them, the roller table is mainly responsible for conveying the strip steel from the finishing rolling unit to the coiler, the main function of the side guide plate is to cen...

AI Technical Summary

Problems solved by technology

[0014] In order to solve the problem that the coiler tends to produce a tower-shaped defect when coiling steel coils, and the symmetrical side guide plate control method adopted by the side guide plate in the prior art cannot solve this defect, the invention provides a coiler with a non- The control method and application of the anti-tower-shaped defect of the symmetrical side guide plate is mainly aimed at the rapid closing process of the side guide plate and the free movement of the strip steel within the opening range of the side guide plate, which inevitably produces tower-shaped defects. The different characteristics of the thin plate, through the adjustment of the center line of the side guide plate, combined with the roller table arranged at an oblique angle, the purpose of reducing the tower-shaped defect is achieved. The specific scheme of the present invention is as follows:

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