Automatic demagnetizing device for outer packaging of ton bag

The utility model provides an automatic demagnetizing device for outer packaging of ton bags. The automatic demagnetizing device comprises a conveying track and a rotary demagnetizing rod, the conveying track is used for conveying ton bags; the rotary demagnetizing rod comprises two side rods and a connecting rod for connecting the two side rods; a surface on the conveying track, on which the ton bag is placed, is defined as a first plane, and a plane on which the two side rods and the connecting rod are located is defined as a second plane; the second plane rotates on the first plane, the second plane is always kept perpendicular to the first plane in the rotating process, or the second plane turns over in a reciprocating mode with the intersecting line of the second plane and the first plane as a turning-over shaft. By means of the design of the rotating demagnetizing bar of the door frame structure, the rotating demagnetizing bar does rotating motion or reciprocating overturning motion on the conveying tra