B - Operations – Transporting – 65 – B
Patent
B - Operations, Transporting
65
B
B65B 9/20 (2006.01) B65B 61/18 (2006.01) B65D 33/25 (2006.01)
Patent
CA 2446792
The invention concerns a method for automatically producing bags equipped with matching closure profiles (30, 40) integral with separate support webs and associated with an actuating slider (50) which consists in: continuously unwinding a supply of at least a film (110) adapted to form the bag walls, continuously unwinding a supply of closure assembly comprising matching closure profiles integral with the lateral webs (26, 28) of separate supports extending beyond the closure profiles, the profiles being associated with a slider actuating the closure profiles distributed over the length of the unwound closure assembly, fixing the thus formed closure assembly, via external lateral support webs on the film forming the bag wall. The invention is characterised in that it consists in producing a loop in the unwinding film and in fixing the closure assembly in a concave part of the loop on the surface of the loop which corresponds to the outer surface of the bag.
La présente invention concerne un procédé de fabrication automatique de sachets équipés de profilés de fermeture (30, 40) complémentaires solidaires de voiles de support distincts et associés à un curseur (50) d'actionnement selon lequel on fournit à défilement au moins un film (110) adapté pour former les parois de sachets, on fournit à défilement un ensemble de fermeture comprenant des profilés de fermeture complémentaires solidaires de voiles (26, 28) latéraux de support distincts qui s'étendent au-delà des profilés de fermeture, les profilés étant associés à un curseur d'actionnement des profilés de fermeture répartis sur la longueur de l'ensemble de fermeture acheminé, on fixe l'ensemble de fermeture ainsi formé, par l'intermédiaire des voiles support latéraux externes sur le film formant paroi du sachet, caractérisé en ce qu'on réalise une boucle dans le film en défilement et on fixe l'ensemble de fermeture dans une partie concave de la boucle sur la surface du film qui correspond à la surface extérieure du sachet.
Robic
S2f Flexico
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