Apparatus and method for forming plastic preforms into plastic containers with coupling device
AssigneeKrones AG
InventorThomas Höellriegl
Life of this patent
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Abstract
Provided is an apparatus for deforming plastics parisons to form plastics containers, having a blow-molding device which is arranged at least indirectly on a main shaft which is pivotable about a pivot axis, which blow molding device has at least two mold supports, a base element and two blow mold parts, wherein the base element and the blow mold parts are suitable for forming a cavity within which the plastics parisons are deformable to form the plastic containers, and the base element is arranged on a base receptacle, and having a coupling device which couples an opening movement of the blow mold parts to a raising and lowering movement of the base part relative to the blow mold parts.
Claims15
An apparatus for forming plastic preforms into plastic containers with a blow molding device, which is arranged at least indirectly on a main shaft that is pivotable about a pivot axis, and which comprises at least two mold carriers, a base element and two blow mold parts, wherein the base element and the blow mold parts are suitable for forming a cavity inside which the plastic preforms can be formed into the plastic containers, and the base element is arranged on a base holder, and with a coupling device which couples an opening movement of the blow mold parts to a lift and lower movement of the base element relative to the blow mold parts,
- wherein
- the coupling device has a curve element which cooperates with a further element such that, by opening of the blow molding device by pivoting of at least one mold carrier about the pivot axis of the main shaft, at least one of the curve element and the further element can be brought into a rotational movement relative to the pivot axis, via which the base holder with the base element can be lowered, wherein the coupling device is arranged directly on the main shaft and wherein a curve path of the curve element is formed as a protrusion in a circumferential direction of the guide element, and at least one roller runs on the top side of the curve element and at least one further roller runs on the underside of the curve element, such that the curve element is received between at least the one roller and the one further roller.
A method for forming plastic preforms into plastic containers, with a blow molding device which is arranged at least indirectly on a main shaft that is pivotable about a pivot axis, and which comprises at least two mold carriers, a base element and two blow mold parts, wherein the base element and the blow mold parts are suitable for forming a cavity, inside which the plastic preforms can be formed into the plastic containers, and the base element is arranged on a base holder, and with a coupling device which couples an opening movement of the blow mold parts with a lift and lower movement of the base element relative to the blow mold parts,
- wherein
- the coupling device has a curve element which cooperates with a further element such that, by opening of the blow molding device by pivoting of at least one mold carrier about the pivot axis of the main shaft, at least one of the curve element and the further element is brought into a rotational movement relative to the pivot axis, via which the base holder with the base element is lowered, wherein the coupling device is arranged directly on the main shaft and wherein a curve path of the curve element is formed as a protrusion in a circumferential direction of the guide element, and at least one roller runs on the top side of the curve element and at least one further roller runs on the underside of the curve element, such that the curve element is received between at least the one roller and the one further roller.
Dependencies are inferred from the claim text.