Deviation correcting device and method for continuous annealing production line of cold-rolled silicon steel thin strip

Abstract

The invention discloses a deviation correction device and method for a continuous annealing production line of cold-rolled silicon steel thin strip. The device includes a control system and several deviation correction units; The deviation-correcting roller under the strip is used to apply the deviation-correcting force to the strip, and the swing mechanism that can drive the deviation-correcting roller to swing left and right relative to the strip on the horizontal plane; for the most downstream deviation-correcting unit, it also includes the working side and the transmission side distributed above the strip The pinch rollers can drive the one-to-one corresponding pinch rollers to press down the strip. The pressing mechanism can be driven by the swing mechanism to swing synchronously with the rectifying rollers, and the nip rollers are parallel to the rectifying rollers. The swing mechanism is connected with the push-down mechanism, and is used to control the swing direction and angle of the correction roller and the push-down force of the pinch roller according to the current deviation amount. The invention can continuously rectify the deviation, has a large deviation rectification range and good retention, and will not produce quality defects to the continuously running cold-rolled silicon steel thin strip.

Description

technical field [0001] The invention belongs to the field of cold-rolled silicon steel production equipment, and in particular relates to a deviation correcting device and method for a continuous annealing production line of cold-rolled silicon steel thin strips. Background technique [0002] The continuous annealing production line is a continuous production unit that performs a series of processes such as pre-cleaning, annealing, post-cleaning, coating, and drying on cold-rolled silicon steel. Changes will cause strip deviation. Especially for the high-speed (150m / min~180m / min) continuous annealing production line of cold-rolled silicon steel thin strip (0.1mm~0.3mm), if the form of floater baking furnace is adopted, due to the long steel strip at the exit of the floater In the suspension state, the deviation is more frequent during the production process, and because the strip steel is thin, the three-roller CPC in the traditional scheme has a small wrap angle, so the de...

AI Technical Summary

Problems solved by technology

Especially for the high-speed (150m / min~180m / min) continuous annealing production line of cold-rolled silicon steel thin strip (0.1mm~0.3mm), if the form of floater baking furnace is adopted, due to the long steel strip at the exit of the floater In the suspension state, the deviation is more frequent during the production process, and because the strip steel is thin, the three-roller CPC in the traditional scheme has a small wrap angle, so the deviation correction roller and the strip steel cannot generate a large friction force, and the deviation correction ability is insufficient. It is easy to cause production accidents such as edge scraping and belt breakage

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