1results about How to "Complete separation" patented technology

The utility model discloses an automatic blowing device of an injection molding machine, which relates to the technical field of blowing of injection molding machines, and comprises a fixed mold and a movable mold, gas delivery pipes, gas passing grooves and gas distribution grooves are arranged in the fixed mold and the movable mold, and the gas delivery pipes are communicated through a header pipe to realize uniform gas distribution; the air passing groove is connected with the air conveying pipe, the air distributing groove is formed in the outer side of the air passing groove, a slidable extrusion head is arranged at the tail end of the air distributing groove, and the extrusion head is pushed to stretch out through airflow to apply mechanical thrust to an adhered product; the air separation plate is arranged in the sliding grooves of the fixed mold and the movable mold in a sliding manner, and is matched with the first pressure spring to control the on-off of an air path: during mold closing, the air separation plate is pressed to slide to block the air passing groove; and when the mold is opened, the first pressure spring resets to conduct the gas path. The auxiliary assembly limits displacement of the extrusion head in the injection molding stage through an extension plate and a second compression spring, and the surface flatness of the mold is ensured. The device is of a full-mechanical structure, and efficient demolding is achieved through synchronous control over actions of a gas circuit and a mold in combination with mechanical thrust of an extrusion head.