Method and apparatus for drying blow minds arranged on a rotating blowing wheel to avoid the formation of condensation
AssigneeKhs Corpoplast GmbH
InventorsRolf Baumgarte, Michael Linke
Life of this patent
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Abstract
The invention relates to a method and to an apparatus for applying dry air to a blow mold (4) arranged on a rotating blowing wheel of a blowing station (3) for blow molding containers (2) from thermoplastic, wherein dry air is collected in a collecting container (39) arranged to be offset radially inward with respect to the blow mold (4) on the blowing wheel (25), and the dry air from the collecting container (39) is discharged and directed to a surface of the blow mold (4) with a directional component pointing radially outward relative to the blowing wheel.
Claims20
A method for applying dry air to a blow mold of a blowing station for blow molding of a container made of thermoplastic material, said blow mold being arranged on a rotating blowing wheel, the method comprising:
- collecting dry air in a collecting container that is arranged on the blowing wheel such that, with respect to the blowing wheel, the collecting container is offset radially inward of the blow mold, and
- discharging the dry air from the collecting container onto a surface of the blow mold such that the discharged dry air has a direction component pointing radially outward with respect to the blowing wheel.
An apparatus for blow molding of a container from a heated preform made of a thermoplastic material, said apparatus comprising:
- a blowing station with a blow mold arranged on a rotating blowing wheel, wherein the blowing station has a pneumatic line system for introducing a blowing gas into the heated preform that is insertable into the blow mold;
- and
- a collecting container arranged on the blowing wheel such that, with respect to the blowing wheel, the collecting container is offset radially inward of the blow mold, wherein the collecting container is configured to receive dry air, and wherein the collecting container has at least one gas outlet through which the dry air received in the collecting container is dischargeable out of the collecting container onto a surface of the blow mold such that the discharged dry air has a direction component pointing radially outward with respect to the blowing wheel.
The apparatus according to 10, further comprising a ventilation line for each collecting container for conveying the dry air to an interior of the collecting container from an interior of the container formed in the associated blow mold.
Dependencies are inferred from the claim text.