Pull-up diaper front and back packing production line

The utility model relates to a pull-up diaper front and back packing production line. The production line comprises a stacking machine, a diaper erection unit arranged at the inlet end of the stacking machine and a packaging machine arranged at the outlet end of the stacking machine. A rotation unit is arranged at the inlet end of the diaper erection unit and comprises an upper circular delivery mechanism and a lower circular delivery mechanism, and a product channel is arranged between the upper circular delivery mechanism and the lower circular delivery mechanism. The upper circular delivery mechanism comprises a cosine curve track and a plurality of small rotation discs arranged on a delivery belt, and the small rotation discs are suspended in the track through pull shafts arranged eccentrically. The small rotation discs are guided to move forwards under the action of the delivery belt in a front and back moving direction, the small rotation discs rotate by 90 degrees from the rotation unit inlet end to the rotation unit outlet end, and the rotation directions of the adjacent small rotation discs are opposite. By means of the production line, the production line is capable of achieving front and back diaper stacking during product packaging and adaptable to front and back stacking of products of various rotation-speed production lines, and the product front and back packaging efficiency is effectively improved.