Screw type plasticizing mechanism of injection molding machine

The invention discloses a screw type plasticizing mechanism of an injection molding machine, and belongs to the field of injection molding machine equipment.The screw type plasticizing mechanism of the injection molding machine comprises a base, a charging barrel is installed on one side of the top surface of the base through a bracket, a feeding hopper is connected to one side of the top surface of the charging barrel in an embedded mode, and a nozzle is installed at the output end of the charging barrel; a screw rod is arranged in an inner cavity of the charging barrel, and the protective box is arranged on the other side of the surface of the top; the injection assembly is arranged on one side of the inner cavity of the protection box, one end of the injection assembly penetrates through the side wall of the protection box and is connected with one end of the screw rod, and the injection assembly is used for pushing the screw rod to move front and back in the inner cavity of the charging barrel; and the tr