Method of registering zipper for reclosable package

An apparatus and method is disclosed for the manufacture of reclosable packages or bags. A drag sealer is upstream of the form fill and seal apparatus and is used to seal a continuous length of zipper to web or film. Upstream from the drag sealer, a zipper clamp is used to hold the zipper in place d...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	HOWELL CLIFTON R
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGINGARTICLES OR MATERIALS 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 PACKING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STORING TRANSPORTING UNPACKING 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:	An apparatus and method is disclosed for the manufacture of reclosable packages or bags. A drag sealer is upstream of the form fill and seal apparatus and is used to seal a continuous length of zipper to web or film. Upstream from the drag sealer, a zipper clamp is used to hold the zipper in place during slider insertion and end stomping, as regulated by a film encoder. A zipper accumulator configured as a dancer and a zipper de-accumulator are used to compensate for the intermittent motion of the continuous length of zipper.