Garbage can bag breaking device and control method thereof

The invention relates to the related technical field of garbage disposal, and discloses a garbage can bag breaking device and a control method thereof.The garbage can bag breaking device comprises a supporting plate and a first driving mechanism, two bag breaking assemblies are symmetrically arranged on the supporting plate, the bag breaking assemblies are rotationally installed on the supporting plate, and the first driving mechanism is used for driving the bag breaking assemblies to rotate; bag breaking teeth are installed on the sides, close to each other, of the two bag breaking assemblies, the bag breaking teeth comprise fixed teeth and movable teeth, the movable teeth and the fixed teeth are arranged in a mutually-penetrating mode, turning plates are arranged on the bag breaking assemblies, the turning plates are rotationally installed, power assemblies are arranged in the bag breaking assemblies, and the power assemblies are used for driving the turning plates and the movable teeth to rotate. In the pr