The application belongs to the technical field of injection molding equipment and particularly discloses an injection molding machine. The injection molding machine comprises a materiel storage box and a spray nozzle communicating with the materiel storage box is arranged on the materiel storage box; the spray nozzle comprises a first pipe head, a second pipe head and a third pipe head, wherein the first pipe head, the second pipe head and the third pipe head communicate in sequence; a rubber sleeve connected with the first pipe head in a sealing and sleeving manner is arranged on the second pipe head; a first transverse plate is arranged on the first pipe head, a first vertical rod is arranged at one side of the first transverse plate and a second vertical rod is arranged at the other side of the first transverse plate; the third pipe head is fixedly connected with a second transverse plate and the second transverse plate is connected with the first vertical rod and the second vertical rod by nuts; first springs are connected between the nuts and the second transverse plate and a fixing plate is arranged on the first transverse plate. The injection molding machine is mainly used for injection molding and the problem is solved that the inspection time after the spray nozzle of the injection molding machine is blocked is long and therefore the machining efficiency is lowered.