Special-shaped pot centralizer for filling machine

The utility model discloses a special-shaped pot centralizer for a filling machine. The special-shaped pot centralizer comprises a support. A sliding rail is installed on the support, two sliding blocks are connected to the sliding rail in a sliding mode, a power box and a weight box are installed on the upper surfaces of the two sliding blocks respectively, guide rails are arranged at the front ends and the rear ends of the outer side faces of the power box and the weight box, power transfer boxes are connected to the inner side faces of the guide rails in a sliding mode, and the power transfer boxes are fixed to the guide rails through locking mechanisms. Telescopic rods are installed on the power transfer box, a driving belt wheel and a driven wheel are installed at the ends of the telescopic rods on the left side and the right side respectively, the driven wheel is rotationally connected with the telescopic rods, the driving belt wheel is fixedly connected with the telescopic rods, the driving belt wheel