Injection molding machine for producing expansion screw sleeve

The invention relates to an injection molding machine for producing expansion screw sleeves, and mainly relates to the technical field of special injection molding machines for producing special parts, the injection molding machine comprises a feeding mechanism, a preheating mechanism communicated with the feeding mechanism, an injection molding machine body communicated with the preheating mechanism, and a feeding mechanism arranged at the discharging end of the injection molding machine body; the feeding mechanism comprises a supporting arm fixedly arranged on the injection molding machine body, a sliding rail rotationally connected with the supporting arm, a lifting air cylinder slidably connected with the sliding rail and a clamping jaw arranged at the end, close to the ground, of the lifting air cylinder. And a rotating shaft is parallel to the ground when the sliding rail and the supporting arm rotate relative to each other. The device has the advantages of being high in automation degree and high in pr