Method for monitoring shear blade state of circle shear

Abstract

The invention relates to a method for monitoring the shear blade state of a circle shear, and belongs to the technical field of cold rolling control methods. According to the technical scheme, the method comprises the following steps: accumulating and recording on-line use mileage values of all shear blades to reflect the length of on-line working time of the shear blades; after a new shear blade is replaced, a zero clearing module is manually started after the condition is met so as to initialize the mileage of the shear blade; and the data unloading module is triggered in advance in a scanning period before the zero clearing module is started, and the actual mileage of the last shear blade work is recorded as a reference for next shear blade replacement. The method has the advantages that by judging the working state of each group of shear blades, mileage accumulation of each group of shear blades is accurately controlled, data invalid events are effectively eradicated, and replacement reference can be well provided by adding the last use record. And meanwhile, the reset function is added with a pop-up window prompt, data loss caused by remote misoperation is avoided, a post worker can effectively monitor the use state of all the shear blades through the method, and the purposes of real-time monitoring of the shear blade state and convenient maintenance are achieved.

Description

technical field [0001] The invention relates to a method for realizing the state monitoring of disc shears and belongs to the technical field of cold rolling control methods. Background technique [0002] Disc shears are mainly used to cut the edge defects of strip steel, and ensure the uniform width of the entire strip steel, improve the width accuracy of the strip steel, and the quality of its trimming directly affects the final quality of cold-rolled products. [0003] Disc scissors are composed of two circular cutter heads. Each pair of cutter heads is dislocated up and down and arranged parallel to each other. According to the thickness of the incoming material, the appropriate amount of overlap and the gap between the cutting blades are adjusted. When the strip is bitten between the two cutterheads, it will be pressed by the cutterheads on the strip. Under the action of the extrusion force, the contact area between the strip steel and the cutter head produces elastic ...

AI Technical Summary

Problems solved by technology

At present, the replacement of scissors can only be decided by technicians on-site inspection of the actual wear of the scissors. Since there is no data support, replacement of scissors early will waste spare parts and increase production costs. Such defects lead to the degradation of the quality of batch products, and the most severe ones are the shearing blades that crack during use, resulting in flashing or stacking of steel, which seriously affects the production rhythm of the unit

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