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The utility model discloses a regulating and compensating device of a paper feeding and cutting position of a packaging machine. The utility model comprises a power input shaft, an input gear fixedly connected with the power input shaft and a power output shaft, characterized in that: the input gear meshes with the planetary gear mechanism on the power output shaft, the arm and the speed compensation and locking mechanism in the planetary gear mechanism Connect to form a differential gear drive structure. The device can be adjusted and compensated during spindle gap or continuous feed. It has high accuracy, fast compensation speed, automatic judgment of compensation direction for positive or negative compensation according to spindle feed condition, and also has pre-adjustment function. After starting the machine for the first time or changing the packaging paper, the color mark can be traced, and the product has a high qualification rate.