The invention discloses a garbage bag breaking
system, which comprises a bag breaking tube, a
cutting cutter and a motor and is characterized in that the inside of the bag breaking tube is in a tubular shape and is provided with a feeding opening and a discharging opening, a rotating shaft is arranged in the bag breaking tube, the
cutting cutter is arranged on the rotating shaft, the motor is connected with the rotating shaft and drives the rotating shaft to rotate, so that the
cutting cutter is driven to rotate in the bag breaking tube to
cut a garbage bag, the cutting cutter comprises a main cutter and a sub cutter, the main cutter is arranged on the rotating shaft, and the outer end of the main cutter is hinged to the sub cutter. The garbage bag breaking
system has the advantages that the rotating cutting cutter is used for cutting the garbage bag entering the bag breaking tube, the cutting cutter has a retreating and avoiding function, and can avoid heavy objects, large objects or substances different to break, the collision generated on the cutting cutter is avoided, the
impact on the motor due to cutting cutter stagnation is avoided, the damage to the cutting cutter and the motor is reduced, the service life is prolonged, and the maintenance and overhaul cost is reduced.