After nearly a decade of research, why our hollow plastic injection stretch blow molding machine has not yet reached commercial level? I believe that the following four main reasons.
Development of ideas because of some mistake
Development of hollow plastic blow moulding machine, only to re-host enterprise development, neglect of mold development. Hollow plastic injection stretch blow molding machine is the host and die combination of equipment, from both the host and die importance of the machine, the host machine only 40%, while the mold to account for 60% of the whole machine . Host successfully developed, does not mean that the successful development machine, only the host and the successful development of mold are common to said hollow plastic injection stretch plastic moulding machine developed. Japan's "three-location" and Japan's refined style "four-station" type of technology is the key to mold, and some of our plastic machinery plant in the development of hollow plastic injection stretch blow molding machine process, not a correct understanding of both the host and die the relationship between, only cares about the development host, but did not die on the development of a more important role, the main cause of failure in this.