IMPROVED DRIPPING PLUG FOR PLASTIC PREFORMS Russian patent published in 2005 - IPC

FIELD: production of gripping plugs for plastic preforms.

SUBSTANCE: the invention is pertinent production of improved gripping plug having a capability to get in contact with plastic preforms to keep them, to orient and transport at different stages, which the preforms are passing through at their further treatment, in particular, during stages of temperature conditioning and blow molding. The gripping plug contains a central body and located in it gripping means, which are capable to get in contact with the throat part of the perform. The gripping means are equipped with elastic components pressing them to the wall of the throat part of the preform. The gripping means are composed of the separate and independent gripping components located in the corresponding grooving diggings. The elastic components are composed of springs acting between the internal wall of the grooving diggings the corresponding opposite wall of the gripping components. The grooving diggings have a bay made with a capability to accommodate a tail bulge of a one of the gripping components so, that the tail bulge is capable to turn partially due to the fact, that it is kept with a capability to turn in one of the grooving diggings. The invention allows to improve reliability and operating characteristics of gripping plug.

EFFECT: the invention allows to improve reliability and operational characteristics of the gripping plug.

6 cl, 15 dwg