Hot rolling box for shearing strip steel head by hot continuous rolling and method for shearing strip steel head

Abstract

The invention discloses a hot rolling box for shearing a strip steel head of the hot continuous rolling and a method for shearing the strip steel head. The hot rolling box comprises flying shears anda PLC (programmable logic controller) system, wherein the flying shears are arranged behind a hot rolling box body, and the PLC system controls the hot rolling box to work; the hot rolling box furthercomprises a first high-temperature detector and a second high-temperature detector; the first high-temperature detector and the second high-temperature detector are controlled by the PLC system; andthe first high-temperature detector and the second high-temperature detector are arranged between the hot rolling box body and the flying shears at intervals. The first high-temperature detector and the second high-temperature detector are additionally arranged on the hot rolling box to monitor the strip steel head, and the starting time of the flying shears is calculated according to the monitored data, so that strip steel reaches the shearing position and is subjected to the set shearing length, shear blades of the flying shears are just rotated to a shearing position for shearing operation,accurate shearing of the strip steel head is realized, waste can be avoided, the production cost is reduced, the temperature of the strip steel head is ensured to meet the production requirements, and waste steel caused by too low temperature of the head is avoided.

Description

technical field [0001] The invention relates to the technical field of hot continuous rolling production, in particular to a hot coil box and a method for cutting the strip head for hot continuous rolling. Background technique [0002] In the hot continuous rolling production line, the strip steel is rolled up from the heating furnace to the hot coil box. After being uncoiled by the hot coil box, the strip steel enters the flying shear, and then enters the F1 rolling mill for rolling after being treated by the flying shear and descaling box. . Because the temperature of the strip head is low, the lower temperature part of the strip head needs to be cut off before the strip enters the F1 rolling mill. [0003] In the prior art, manual shearing is generally used for strip steel cutting, but manual operation inevitably has errors, and operators cannot accurately cut the length of the strip steel head, which easily leads to errors in the length of the shear strip steel head. I...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, manual shearing is generally used for strip steel shearing, and there are bound to be errors in manual operation. Operators cannot accurately cut the length of the strip steel head, which may easily lead to errors in the length of the strip steel head.

If the length of the cut strip head is too long, unnecessary waste will be caused and the production cost will be increased; if the length of the cut strip head is too short, the temperature of the cut strip head will still be low , unable to enter the rolling mill, it will lead to scrap steel or even damage the rolling mill

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