Turnover device for packaging machine for books and periodicals

The utility model relates to a turning device for boos packing machines, which is characterized in that a conveying panel is provided with a cylinder whose output shaft is connected with a swing shaft connected with a turning plate. When in use, the swing shaft embeds the turning plate into the concave face of the conveying panel via the clockwise torque of the rotary swing cylinder, and when a book stack passes the turning plate and stops at one side of the swing shaft, the output shaft of the rotary swing cylinder can drive the swing shaft to swing anti-clockwise, to turn the paper upwards from the back lower edge of the book stack.