My country's pharmaceutical packaging industry is developing rapidly, and its demand for plastic packaging plastic bottles is increasing day by day. During the operation of our company's injection blow molding equipment, we first inject the bottle mouth to ensure the accuracy of the bottle mouth, and then blow the bottle body. Therefore, the volatilization of the gas in the plastic bottle and the penetration of external air into the bottle can be prevented. It ensures a good close performance between the bottle mouth and the bottle cap.