B29C2049/5898

Mould filling with subsequent closing under internal pressure

Disclosed is an apparatus for expanding and filling plastic parisons to form plastic containers with a liquid medium, with at least one transforming station which has a hollow mould, inside which the plastic parisons can be expanded into plastic containers and can be simultaneously filled by application of a liquid medium, wherein the transforming station is arranged on a carrier and wherein the transforming station has a filling device which feeds the liquid medium to the plastic parisons under pressure, wherein the transforming station has a pressure chamber to which a gas can be applied, wherein for filling of the plastic parisons the filling device can be introduced into the pressure chamber and after the filling can be removed at least partially, and wherein a closing unit can be introduced into the pressure chamber, in order to close the expanded und filled plastic containers.

Method and apparatus for fabricating containers
09764509 · 2017-09-19 · ·

A method for the fabrication of a container from a substantially tubular preform provided with an open end communicating with a cavity comprises the steps of positioning the preform within a mold that substantially defines a container such that the open end of the preform protrudes from the mold; providing an injector in sealed fluid communication with the open end of the preform which injects a quantity of liquid into the cavity of the preform, increasing the pressure within the cavity and inducing the preform to deform into the shape of the mold and form a container; and then reducing the pressure within the container to atmospheric pressure while maintaining sealed fluid communication between the injector and the open end. Using the method for fabricating and filling a beverage container.

MOULD FILLING WITH SUBSEQUENT CLOSING UNDER INTERNAL PRESSURE

Disclosed is an apparatus for expanding and filling plastic parisons to form plastic containers with a liquid medium, with at least one transforming station which has a hollow mould, inside which the plastic parisons can be expanded into plastic containers and can be simultaneously filled by application of a liquid medium, wherein the transforming station is arranged on a carrier and wherein the transforming station has a filling device which feeds the liquid medium to the plastic parisons under pressure, wherein the transforming station has a pressure chamber to which a gas can be applied, wherein for filling of the plastic parisons the filling device can be introduced into the pressure chamber and after the filling can be removed at least partially, and wherein a closing unit can be introduced into the pressure chamber, in order to close the expanded und filled plastic containers.

Blow nozzle and blow molding machine

In one embodiment of this invention, a blow nozzle, which introduces blow air into a molded article in which a flange portion is supported by a blow cavity mold, includes a nozzle main body and an outer nozzle. The outer nozzle includes a first surface brought into press contact with the flange portion and a second surface disposed further outwards in a radial direction than the first surface and being brought into contact with the blow cavity mold. From when the nozzle main body is moved and the first surface is brought into contact with the flange portion to when the second surface is brought into contact with the blow cavity mold and the movement of the nozzle main body is stopped, the first surface of the outer nozzle is overdriven so that the flange portion is airtightly sealed by the first surface.