Cooling bed rack control method

Abstract

The invention discloses a cooling bed rack control method, comprising the following steps: a. obtaining the length L of the steel bar tail when the steel bar tail hits the rack; b. obtaining the length L of the steel bar tail, and the steel bar tail at position S on the rolling line; c, collect the shear signal and the steel bite signal at position S, and send it to the cooling bed PLC; d, the cooling bed PLC judges the size between the length l and L of the actual steel bar tailings, if If the length l of the actual rebar tail is less than L, a signal X is generated and the delay time TL is input; e. When the signal X is generated, the delay TL time controls the cooling bed rack to stop until the rebar tail reaches the cooling bed rack , the cooling bed rack is allowed to continue to move, so as to avoid the steel tailings hitting the cooling bed rack. The tailings of steel bars in the invention will not collide with the cooling bed rack, which has the characteristics of reducing product loss, increasing income, reducing the incidence of safety accidents, and reducing labor intensity of workers.

Description

technical field [0001] The invention relates to a method for controlling a steel bar cooling bed, in particular to a method for controlling a cooling bed rack for steel bar tailings. Background technique [0002] The action of the cooling bed rack in the long product factory is controlled by the steel throwing action of the skirt plate. The cooling bed rack acts once every time the skirt plate is thrown. When producing steel bars with diameters of 10mm, 12mm and 14mm, the end of The length of the steel bar is not within the specified size, and the length of the steel bar tailings cannot be controlled. When the length of the steel bar tailings is less than a certain size, the speed of the steel bar tailings will reach more than 17m / s. When the existing cooling bed rack moves Can not identify the steel bar tailings throwing steel, can not do the signal shielding of the steel bar tailings before, the steel bar tailings that are too fast will often hit the running cooling bed ra...

AI Technical Summary

Problems solved by technology

[0002] The action of the cooling bed rack in the long product factory is controlled by the steel throwing action of the apron. Every time the skirt plate throws steel, the cooling bed rack will move once. The length of the material is not within the specified size, and the length of the tail of the steel bar cannot be controlled. When the length of the tail of the steel bar is less than a certain size, the speed of the tail of the steel bar will reach more than 17m / s. It can’t identify steel bar tailing throwing steel, and can’t shield the signal of the steel bar tailing last throwing steel, and the steel bar tailing speed will often hit the running cooling bed rack. Basically, there are only 5 steel bars. 1 steel bar hits the rack, and every time it hits the rack, it will cause 3-4 waste products of fixed-length steel bars, resulting in large material loss, energy waste, reduced product yield, and increased production costs; Random flying will not only damage the tailings of steel bars and cooling bed racks, but also cause safety accidents, endangering the personal safety of operators and equipment safety; in addition, the entire production rhythm will also be disrupted, requiring downtime for repairs Not less than 5 minutes (sometimes while processing and producing), not only increases the labor intensity of the workers, but also reduces the production efficiency of the product, the production volume is reduced, and the income is reduced

[0003] Therefore, in the existing method of feeding steel bars on the cooling bed, the tailings of the steel bars will often hit the running cooling bed rack, which has the problems of large material loss, increased production costs, certain hidden safety hazards, and high labor intensity.

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