Coiling forming control device and method for hot coiling box

Abstract

The invention relates to a coiling forming control device for a hot coiling box. The control device comprises a deflection roller, a lower bending roller, a first upper bending roller, a second upper bending roller, an inclined guide plate, a laser detection line, an oil cylinder, a forming roller, an arc-shaped guide plate, a 1 # carrier roller, a 2 # carrier roller, a second carrier roller oil cylinder, a hydraulic motor and a hydraulic system, wherein the lower bending roller is fixedly arranged on a memorial archway; the 1 # upper bending roller and the 2 # upper bending roller are arranged on a pinch roller frame; the oil cylinder can enable the pinch roller frame to drive the two rollers to lift up and fall down around a fulcrum a; the 1 # upper bending roller and the 2 # upper bending roller respectively form a certain roller gap S with the lower bending roller; the inclined guide plate is installed between the lower bending roller and the forming roller and plays roles in transition, guiding and forming; a driving hydraulic motor is installed on one side of the forming roller; a speed encoder is installed on the other side of the forming roller, and the speed is fed back to a background control program in real time; and the hydraulic motor is controlled by the hydraulic system, and the problem of coil loosening at the middle rear part of coiling is solved by optimizing the threading speed and the coiling speed.

Description

technical field [0001] The invention relates to a control device, in particular to a coiling and forming control device for a hot coil box, and belongs to the technical field of steel rolling in metallurgical enterprises. Background technique [0002] The function of the hot coil box is to coreless coil the rough rolled straight billet into a cylindrical shape, and then uncoil it in reverse and enter the finish rolling unit. Since the intermediate billet is kept warm in the hot coil box and the direction of the head and tail of the intermediate billet is changed when it enters the finishing rolling unit, the "difficulty" of hot strip rolling with a large temperature difference between the head and tail of the intermediate billet is solved; The box is equipped with two stations (coiling station and uncoiling station) which can work at the same time to improve the working efficiency of the hot coil box. [0003] The coiling and forming of the hot coil box mainly includes two ...

AI Technical Summary

Problems solved by technology

[0004] At present, there are two problems in the domestic hot coil box: 1. The position where the strip head hits the inclined guide plate is uncertain and cannot be detected, and it is adjusted according to the shape of the coil eye after the event.

2. The forming rolls are all controlled by idler rolls, that is, in the free roll state. When the head of the strip steel hits the forming rolls, it rotates clockwise first, and then rotates counterclockwise until the strip steel is completely coiled, which is likely to cause unwinding and slippage.

During the coiling process, the hot coil box of Meishan Steel’s hot-rolled 1422 production line often has unfavorable phenomena such as hook coils, oval coils, loose coils, and impact slippage, which will cause great impact damage to related equipment in the coiling area.

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