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.