Roll core and waste and defective steel coil integrated use production line and technology

Abstract

The invention provides a roll core and waste and defective steel coil integrated use production line, and discloses a technology as for integrated use development of roll cores and waste and defective steel coils. The production line comprises a welding device, a first centering vertical roller, a first crosscutting plate shearing machine, a second centering vertical roller, a three-roller straightening pinch roll, a guide board platform and a raw material coil uncoiler, wherein the welding device is located in the middle, the first centering vertical roller, the first crosscutting plate shearing machine, the second centering vertical roller, the three-roller straightening pinch roll, the guide board platform and the raw material coil uncoiler are sequentially arranged on one side of the welding device from inside to outside, and the raw material coil uncoiler has the uncoiling function and the coiling function. A third centering vertical roller, a second crosscutting plate shearing machine, a feeding frame, a decoiler machine and an uncoiling device are sequentially arranged on the other side of the welding device from inside to outside. According to the production line and the technology, the roll cores are leveled and wound on the raw material coil uncoiler on the right side, and the leveling purpose is achieved. The roll cores are reused, meanwhile, the thickness transition sections of the roll cores are decoiled, and waste steel is changed into decoiling plates to be reused to achieve appreciation.

Description

technical field [0001] The invention relates to the technical field of cold-rolled steel strip equipment, in particular to a production line and process for re-integrating and utilizing steel coil cores and waste and defective steel coils. Background technique [0002] Cold-rolled reversible rolling mills are generally used for rolling cold-rolled steel plates of various varieties and small batches. It is a kind of equipment often used in the production process of steel strips. At present, in the production of cold-rolled reversible rolling mills, steel coils are mostly used. ways to produce. Since the steel strip has no tension in the initial and head-to-tail stages, the problem is that the head and tail of each steel coil cannot be rolled, and the finished product process needs to be cut off to form the head and core, which cannot be reused. It becomes a waste product, causing the yield rate of reversing rolling mill and cold rolling ratio to be about 5 percentage points ...

AI Technical Summary

Problems solved by technology

Since the steel strip has no tension in the initial and head-to-tail stages, the problem is that the head and tail of each steel coil cannot be rolled, and the finished product process needs to be cut off to form the head and core, which cannot be reused. It becomes a waste product, resulting in a reduction of about 5 percentage points between the reversing rolling mill yield and the cold rolling ratio, and the cost is not competitive

For this reason, some cold rolling mills open the outer ring of the steel coil on the uncoiler and directly weld the coil core manually. Every time it needs to stop working, but the production efficiency is low, and the welding quality is difficult to guarantee.

[0003] In addition, some steel coils have irregular shapes due to accidents during transportation or handling, which also reduces the utilization rate of steel coils. The present invention is a production line designed to solve the above problems

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