Broken strip alarm device for plastic granulation, strip pulling, pelletizing and strip breaking

The utility model discloses a plastic granulation bracing and pelletizing broken bar alarm device, which comprises a water tank arranged at a discharge port of an extruder, a guide shaft is arranged above the water tank and on an advancing path of a material bar, a support frame is arranged above the guide shaft, the support frame is provided with a laser sensing switch right above the material bar, and the laser sensing switch is connected with the water tank. An excess material bin is downwards arranged at the end, close to the extruder, of the water tank, broken material strips can be stacked in the excess material bin under the action of gravity when material breakage occurs, the stacked material strips are prevented from extruding the complete material strips at a discharge port of the extruder, a certain reaction time can be provided after an operator finds that the material breakage occurs, the use effect is greatly guaranteed, and the service life of the extruder is prolonged. Waste of raw materials i