Patent ID: 7082737
Filing Date: 2006-08-01
Classification: B29C,B31B,B65B

Abstract:
1. Form-fill-seal machine comprising: means for moving a web of packaging material through the machine according to a process path from a web supply side, said process path being located in a process plane, said web having longitudinal marks thereon; means for transforming the web into filled bags having a bag length; and controlling means having first means for noticing said longitudinal marks on the web and for measuring the web position, wherein said controlling means are provided with means for storing data concerning the bag length, wherein the machine is provided with an end or turn roll for the web, said end or turn roll is arranged on the machine to be movable in said process plane and is adjustable in position in said process plane by movement means, the controlling means being adapted for controlling the movement means of the end roll for altering the length the web has to travel from the web supply side to the transforming means, in response to the bag length data stored in the controlling means and the data from the first means for noticing longitudinal marks on the web and the measuring of the web position.