Device for realizing one-key switching function of large and small packages

The utility model discloses a device for achieving a one-key switching function of large and small packages. The device comprises a distributor, a material receiving opening is formed in the top end of the distributor, a first discharging opening and a second discharging opening are formed in the two sides of the bottom end of the distributor respectively, flexible connection canvas is arranged at the bottom end of the second discharging opening, and a spiral feeding machine is arranged at the bottom end of the flexible connection canvas. The material receiving port is used for being installed below the temporary storage bin, the first discharging port and the second discharging port are formed in the two sides below the distributor respectively, the pneumatic flap valve is arranged on the inner side of the distributor, the first discharging port is connected with an inlet of a newly-added vibration feeder and leads to a small packaging machine channel, and the small packaging machine channel is used for pack