After the blow molding machine sprays out the liquid plastic, it uses the wind blown by the machine to blow the plastic body to a certain shape of the cavity to make a product. The plastic is melted and quantitatively extruded in a screw extruder, and then formed through an orifice, and cooled by a wind ring, and then a tractor is pulled at a certain speed, and the winder winds it into a roll. Extrusion blow molding takes thermoplastic pellets (or powders) after being plasticized by an extruder, and then passes through a specific die to prepare a hot-melt tubular parison, and then blow molding. Injection blow molding uses a split mold to inject the parison onto the mandrel. After the parison is properly cooled (the surface of the parison is solidified, the shape of the parison will not be broken or deformed when the mandrel is moved). The parison is sent to the blow mold together with the parison, the blow mold is closed, and compressed air is introduced through the mandrel to inflate the parison to form the desired product. After cooling and shaping, the product is taken out. Stretch blow molding forces the parison to stretch and shape in a specific temperature range. At the same time as molding, the macromolecules are aligned and fixed in the wall of the product, thereby greatly improving the performance of the plastic container. A molding method in which a bottomed parison heated at an appropriate temperature below the melting point is placed in a mold, and then blow-molded immediately after being stretched in the axial direction using a stretching rod. Multi-layer blow molding uses a multi-layer composite parison to prepare a multi-layer container through a blow molding process. Through the reasonable matching of various plastic layers, the effective complementation of the plastic properties of each layer is realized, thereby overcoming some inherent shortcomings of the single-layer plastic container. It should be noted that within the two-plate injection molding machine, sufficient plastic raw materials should be maintained. Moreover, different raw materials should be dried to different degrees according to the needs, so that our processing requirements for the process can also be met. Generally speaking, the personnel who operate the equipment need to be trained. If you are a novice, try to have staff nearby to guide you.