Hollow blow molding skills Discuss the use of metering charging system in hollow blow molding
Blow molding, also known as hollow blow molding, is a rapid plastic processing method. It is the extrusion of molten plastic blank, placed in the mold, with the compressed air blowing and attached to the cavity wall, after cooling hardening into plastic parts, this method is mainly used for forming hollow plastic parts. Product packaging containers, industrial products will be greatly increased, and injection blow molding, multi-layer blow molding will have a rapid development. In view of the application and development of hollow blow molding processing skills, the processing method of hollow blow molding is introduced, the skill requirements of the basic functions of hollow blow molding are analyzed, the plastic mold equipment of hollow blow molding processing is discussed, and the processing skills of polymer hollow blow molding are pointed out.
With the increase of market requirements for hollow blow molded products, the use of metering and feeding system can improve the stability of extruded billets and products, and improve the quality of products. This paper introduces the principle of the metering charging system and the setting of PID control parameters of the system, and explains the function and significance of the metering charging system used in multi-layer hollow blow molding with experimental data.