Necking and bottom shaping die for water cup shell

The utility model discloses a necking and bottom shaping die for a water cup shell, which can simultaneously process a bottom and a neck and is higher in efficiency. In addition, the machined water cup shell is high in perpendicularity, the edge leaning phenomenon can be avoided, the gap of the vacuum layer of the machined vacuum cup is smaller, and the vacuum cup has the larger capacity; comprising an upper die, a lower die and a flange plate from top to bottom in sequence; the upper die is fixedly connected to a lifting mechanism of the equipment and can move up and down, and a force application platform is arranged at the upper end of the upper die and used for applying pressure to a water cup shell; the upper end of the lower die is a necking part which shrinks inwards in the radial direction, the lower end of the lower die is provided with a complete bottom part which protrudes outwards in the radial direction, the complete bottom part is in close fit with the inner wall of the lower port of the water cu