Coil feeding auxiliary device of silicon steel coil uncoiler

The utility model discloses a coil feeding auxiliary device of a silicon steel coil uncoiler, which belongs to a steel coil uncoiler, the uncoiler comprises a power box and an uncoiler mandrel in transmission connection with the power box, the coil feeding auxiliary device comprises a driving cylinder and an L-shaped supporting piece, and the driving cylinder is provided with a control driving system in a matched mode. A piston rod of the driving cylinder and the mandrel of the uncoiling machine are positioned in the same vertical plane; the L-shaped supporting piece comprises a supporting rod fixedly connected with a piston rod of the driving cylinder and a supporting plate horizontally arranged at the lower end of the supporting rod, and the supporting plate is correspondingly arranged on the upper side of a mandrel of the uncoiling machine; the driving cylinder drives the L-shaped supporting piece to move forwards or backwards in the axial direction of the uncoiling machine mandrel. According to the utilit