Efficient plastic granulator

The utility model discloses an efficient plastic granulator which comprises a console and an extrusion hole adjusting mechanism and is characterized in that a machine barrel is arranged in the middle of the top end of the console, a feeding hopper is arranged on one side of the top end of the machine barrel, a machine head is arranged at one end of the machine barrel, and the extrusion hole adjusting mechanism is installed in the machine head. The extrusion hole adjusting mechanism comprises a screw rod and a sliding rod, the screw rod and the sliding rod are both sleeved with two screw sleeves and two sliding sleeves, and a cooling water pool is arranged on one side of the control table. A user rotates the hand wheel to drive the bevel gear II to rotate, and then the bevel gear I and the screw rod are driven to rotate, so that the upper gate plate and the lower gate plate are relatively separated or closed, the size of an extrusion opening in the machine head can be changed, the diameter of an extruded plast