Method and device for the production of plastic containers provided with at least one built-in part by blow molding
AssigneeVolkswagen Aktiengesellschaft
InventorRalf Berlin
Life of this patent
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Abstract
A method for producing a plastic container provided with at least one insert part by blow molding, which includes introducing a tubular preform, which is open at least at one end, into a blow molding tool; inserting the insert part into the open end of the preform together with a protective device, which prevents the insert part from adhering to the inner surface of the preform during the inserting operation; pulling out the protective device from the preform; closing the blow molding tool; and carrying out a blow molding operation. Also disclosed is an apparatus suitable for performing this method.
Claims18
An apparatus for producing plastic containers comprising at least one insert part by blow molding, the apparatus comprising:
- a blow molding tool with two tool halves, at least one of which is displaced to close and open the blow molding tool;
- a lance, which is introduced between the tool halves when the blow molding tool is open, for inserting the insert part into an open end of a preform;
- a protective device which, together with the insert part, is inserted into the open end of the preform to prevent the insert part from adhering to the inner surface of the preform during the inserting operation.
A method for producing a plastic container provided with at least one insert part by blow molding, the method comprising:
- introducing a tubular preform, which is open at least at one end, into a blow molding tool;
- inserting the insert part into the open end of the preform together with a protective device, which prevents the insert part from adhering to the inner surface of the preform during the inserting operation;
- pulling out the protective device from the preform;
- closing the blow molding tool;
- and
- carrying out a blow molding operation.
Dependencies are inferred from the claim text.