Box cover non-return device and box-packed product production equipment

The utility model relates to the technical field of box-packed product production equipment, in particular to a box cover non-return device and box-packed product production equipment. A box cover non-return device comprises a fixing assembly provided with a rotating shaft; the swing assembly is rotationally connected with the fixing assembly through a rotating shaft and provided with a guide face, and the guide face is suitable for making contact with the box cover and rotating in the conveying direction of the box cover when the box cover is opened so as to guide the box cover to cross the swing assembly to reach the preset position; the energy storage part is arranged between the swinging assembly and the fixing assembly and suitable for compressing and storing energy when the box cover makes contact with the guide face and releasing energy after the box cover crosses the swinging assembly, so that the swinging assembly rotates in the direction opposite to the conveying direction of the box cover and at le