Metod och anordning för att formspruta del av förpackningsbehållare

The invention relates to a method and a device for injection moulding a thermoplastic packaging container portion connecting with a thermoplastic opening device (16) and connecting with an end portion (20) of a packaging container body (12) which body comprises a thermoplastic material at least in a...

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Bibliographic Details
Main Authors INGMAR ANDREASON, PATRIK MAANSSON, PAER ANDERSSON, JOAKIM TUVESSON
Format Patent
LanguageSwedish
Published 04.03.2008
Subjects
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
PERFORMING OPERATIONS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:The invention relates to a method and a device for injection moulding a thermoplastic packaging container portion connecting with a thermoplastic opening device (16) and connecting with an end portion (20) of a packaging container body (12) which body comprises a thermoplastic material at least in an outer layer. The method comprises the steps of arranging said end portion (20) and at least a portion of said opening device (16) in a cavity (30) formed by bringing together an inner mould part (24) and an outer mould part (26), provide a temperature difference between the opening device (16) and the end portion (20) so that said end portion attains a higher temperature than the opening device (16, inject into the cavity (30) at least one melt (32) of at least a first material, and bring the melt (32) into contact with said opening device (16) and said end portion (20).
Bibliography:Application Number: SE20060001469