Device and method for producing tubes for packaging tubes

The invention relates to a device for producing tubes for packaging tubes, comprising an elongated mandrel (3), around which a substrate web can be shaped in order to produce a tubular form (4), which surrounds the mandrel (3) and can be conveyed along the mandrel (3) in a conveying direction (R), w...

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Bibliographische Detailangaben
1. Verfasser:	SCHUHN DANIEL
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNERANALOGOUS TO PAPER MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN AMANNER ANALOGOUS TO PAPER 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 WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUSTO PAPER
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Beschreibung
Zusammenfassung:	The invention relates to a device for producing tubes for packaging tubes, comprising an elongated mandrel (3), around which a substrate web can be shaped in order to produce a tubular form (4), which surrounds the mandrel (3) and can be conveyed along the mandrel (3) in a conveying direction (R), welding means (9) for welding the substrate web along a welding region in order to form a weld (11), and at least one first welding strip (34), which can be conveyed together with the tubular form (4) and which secures the tubular form in a contact region of the substrate web where said web overlaps by clamping the substrate web between the first welding strip (34) and a clamping partner, in particular a second welding strip (35). Furthermore, means (13) are provided for expanding the tubular form (4), which is secured by the first welding strip (34) and the clamping partner, by plastically elongating the substrate web in the circumferential direction.