Small cat litter packaging machine with weighing function

The utility model relates to the technical field of cat litter packaging, and discloses a small cat litter packaging machine with a weighing function, which comprises a rack, supporting rods are respectively and fixedly arranged at four corners of the top of the rack, a top plate is fixedly connected to the tops of the four supporting rods, a discharging hopper is fixedly sleeved in the top plate, and a weighing device is fixedly arranged in the discharging hopper. A strip-shaped opening is formed in the top of the machine frame, a sealing mechanism is arranged in the strip-shaped opening in a sliding mode, a driving mechanism is arranged in the machine frame, the sealing mechanism is connected with the driving mechanism, a weighing device is fixedly arranged at the top of the machine frame, and a buffering mechanism is arranged at the top of the weighing device. A packaging bag is arranged on the surface of the buffering mechanism, and two sets of mounting plates are symmetrically and fixedly arranged on the