Control device and control method for front side guide plate of hot continuous rolling wide-band steel coiler

Abstract

The invention provides a control device and method of a guide plate at the front side of hot continuous rolling type wide flat steel reeling machine, aims to a hot continuous rolling production line of 3200mm over-wide strip steel, in which the guide plate is frequently broken by the huge winding tension through pulling in the reeling process, or the service life of the guide plate is greatly reduced because of over-large clamp force, a strip steel side part is folded, a product does not scroll because of undersize tension, so that the product degrades. The control device provided by the invention comprises side guide plates which have the same structures and are respectively arranged on an operation side and a driving side of an inlet roller bed of the reeling machine, wherein the side guide plates are respectively connected with a transverse shifting device, and the route of the transverse shifting device is 1125mm; the transverse shifting device comprises a group of pushing rods, each pushing rod is connected with a hydraulic cylinder, the pushing rods are connected through a simultaneous coupler, and a rod cavity and a piston cavity of the hydraulic cylinder are respectively provided with a pressure sensor. The control device provided by the invention is used for controlling the guide plate at the front side of the 3200mm wide flat steel reeling machine.

Description

technical field [0001] The invention relates to a control device and a control method for a front side guide plate of a hot continuous rolling wide strip coiler, and belongs to the technical field of hot continuous rolling production control. Background technique [0002] With the increasingly fierce competition of hot-rolled coils, downstream processes put forward higher quality requirements for products, and the coil quality of hot-rolled steel coils has become an important control index in the production process. And the control method of the side guide plate plays an extremely critical role as an important means of controlling the roll shape. In the production process of hot continuous rolling, due to the great difference in the control method of the coiling side guide plate, it is difficult to obtain a reliable guarantee for the coil shape of the finished product, which leads to the degradation of many finished products in the sales process, especially for super-large w...

AI Technical Summary

Problems solved by technology

In the production process of hot continuous rolling, due to the great difference in the control method of the coiling side guide plate, it is difficult to obtain a reliable guarantee for the coil shape of the finished product, which leads to the degradation of many finished products in the sales process, especially for super-large wide-band large coils. The single-weight steel coil has more economic losses due to poor coil shape and has a huge impact on the yield and process inconvenience of downstream products.

Improper control of the coiling side guide also directly affects the service life of the side guide and the hidden danger of accident shutdown, which brings huge loss of human and material resources to equipment maintenance

For the hot continuous rolling production line of 3200mm ultra-wide strip steel, the method of mechanical tightening is adopted in the production process. Since the finished strip steel is wide and thick, the guide plate is frequently damaged by the huge coiling tension during the coiling process, or because Excessive clamping force will greatly shorten the service life of the guide plate, and the edge of the strip will be folded; also because the tension is too small, the roll shape of the product cannot be guaranteed, resulting in product degradation

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