Injection molding machine

The utility model relates to the field of injection molding machines, and discloses an injection molding machine which comprises a concave mounting seat, a mold is fixedly mounted on the mounting seat, a telescopic rod is fixedly mounted on the mold, one end of the telescopic rod is fixedly connected with the inner wall of the top of the mounting seat, and a material tank is fixedly mounted on the wall surface of the top of the mounting seat. The material tank is connected with an injection molding nozzle through a connecting pipeline, the injection molding nozzle is communicated with the mold, a plurality of groups of first separation blocks are fixedly mounted in the material tank and form a storage space in the material tank, the inner wall of the material tank is gradually reduced from top to bottom, and a discharging pipe is fixedly mounted at the bottom of the material tank; the output end of the discharging pipe is kept communicated with the connecting pipeline, second separation blocks are fixedly ins