Automatic steel bar feeding line and method

The invention relates to the technical field of building construction, and discloses an automatic steel bar feeding line and method. The technical problems that in the prior art, the machining precision of reinforcing steel bars is not enough, classified storage depends on manpower, the processing efficiency is low, the labor intensity is high, and different storage requirements of different reinforcing steel bars cannot be met are solved. The system comprises a plurality of magnetic attraction feeding navigation frames, and reinforcing steel bar shearing and classified conveying equipment and a reinforcing steel bar warehouse-dividing storage device are erected in a moving area below the magnetic attraction feeding navigation frames. Full automation of steel bar feeding is achieved, 24-hour continuous operation can be achieved, meanwhile, the single-time feeding number can be set according to the machining rhythm requirement, the working efficiency is greatly improved, the three-dimensional space is fully ut