Alpla Werke Alwin Lehner Gmbh+co. Kg

Soplar S.a.

Alpla-werke Alwin Lehner Gmbh Und Co. Kg

Markus Düringer

Johann Künz

Alwin Lehner

Method for producing a plastic bottle, and preform and blowing mold suited therefore are disclosed. An exemplary process can produce a plastic bottle, for example, a PET bottle. Such a bottle can be produced from a preform which has a body which is closed on one side, which is connected to a neck section with a pour opening, in which the preform which has been produced in a plastic injection process or an extrusion process is placed in the mold cavity of a blow mold and inflated using the blow nozzle by overpressure according to the mold cavity. Sealing can take place between the blow nozzle and the preform within the preform.

Method for producing a plastic bottle, and preform and blowing mold suited therefor

An apparatus for producing hollow bodies, in particular bottles and similar containers provided with an evacuation opening, of thermoplastic includes a lower machine part and a beamlike upper machine part. The lower machine part is equipped with at least two blow molds, each provided with a cavity. A number of blowing and calibration mandrels corresponding to the number of blow molds is disposed on the beamlike upper machine part disposed above the lower machine part. One blow mold is assigned to each blowing and calibration mandrel. The blowing and calibration mandrels can be axially fed jointly toward the blow molds and can be moved with their calibration region into an orifice of the cavity until an annular shoulder of the blowing and calibration mandrels comes into contact with a counterpart face on the associated blow mold. The blowing and calibration mandrels are retained axially freely movably, within predeterminable limits, in the upper machine part. Upon joint feeding of the blowing and calibration mandrels toward the blow molds, the blowing and calibration mandrels are automatically adjustable in height relative to their outset position, counter to the resistance of a coupling medium.

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Fussach, Austria

Markus Düringer