Hot rolled plate edge camber correction device and method

Abstract

The invention discloses a hot rolled plate edge camber correction device and method, and relates to the technical field of rolled steel shearing. The hot rolled plate edge camber correction device comprises a feeding trolley, an automatic feeding suction cup, a feeding conveying roller bed and edge camber additional test guiding rule, an edge camber correction platform, a discharging conveying roller, an automatic discharging suction cup and a discharging trolley. A three-point correction method is adopted, the area with an edge camber is sent to the correction platform, thus, the edge camberarea is reversely bent and deformed, the short edge of a steel plate is compensated through stretching, and the straightness of the side edge of the steel plate is corrected; and the edge camber platewhich is about 15 mm is controlled to be about 3 mm after correction, so that a rejected product is changed into a qualified product, the pass rate can reach 100%, the equipment transformation cost is reduced, and the pass rate of finished BMD slitting units is increased.

Description

technical field [0001] The invention relates to the technical field of shearing of rolled steel, and more specifically refers to a camber correction device and method for hot-rolled plates. Background technique [0002] Camber refers to the maximum distance between the side of the steel plate and the steel strip and the straight line connecting the two ends of the measuring part, that is, the deviation of the edge of one side of the strip from the straight line, and it is measured on the concave side of the product. The sickle bend is due to the inconsistency of the deformation on both sides of the steel plate in the length direction during the rolling process, that is, the one with fast deformation elongates longer and the one with slow deformation elongates short in the same time period, resulting in the longer side bending to the shorter side, forming A macroscopic sickle bend. [0003] In the process of steel rolling, the steel plate will produce a camber after passing ...

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Problems solved by technology

[0005] In order to solve the problem that the camber is too large when the steel plate is longitudinally cut into strips and then cross-cut, the present invention aims to propose a hot-rolled plate camber correction equipment and method, which uses a three-point correction method to send the camber area to the correction The platform allows the camber area to reversely bend and deform, and compensates the short side of the steel plate by stretching to correct the straightness of the side of the steel plate. According to the experimental data, it is possible to control the camber plate of about 15mm to about 3mm after correction. In this way, unqualified products can be turned into qualified products, and the pass rate can reach 100%, which not only reduces the cost of equipment transformation, but also improves the pass rate of finished products of the steel plate slitting unit

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