Device for reducing overflow edges at tail part of split coil

The utility model relates to a device for reducing overflow edges at the tail part of a split coil. The device comprises an outlet slitting shear, a first pinch roll, a first steering pinch roll, a second pinch roll, a second steering pinch roll, a second coiling machine and a first coiling machine, the first pinch roll and the second pinch roll are the same in structure and comprise pneumatic band-type brakes, upper rolls, lower rolls and bearing seats. The upper roller and the lower roller are correspondingly arranged, and the length of a roller body of the upper roller is 1/2 of that of a roller body of the lower roller; cylinders are respectively connected above two ends of the upper roller; the two ends of the upper roller are fixedly connected with the ends of piston rods of the air cylinders on the two sides correspondingly. The two ends of the roller shaft of the lower roller are respectively arranged on a fixed bracket of the unit through a bearing seat; the pneumatic band-type brakes are correspondi