Patent ID: 6591586
Filing Date: 2003-07-15
Classification: B65B,Y10T

Abstract:
A method for the packaging of items or loose materials in foil bags comprising the steps of:feeding vertically oriented, unfilled foil bags as a coherent web through a filling station in which a mouth of each bag is held open for filling with the items or materials; filling the foil bags with the items or materials; closing the filled foil bags; separating the filled foil bags from the web, wherein a mouth edge of the unfilled foil bag web is brought into controlled connection with a feeding means comprising two horizontal, opposed carrier chains having freely upstanding pins arranged to secure and feed opposing bag mouth edges between the carrier chains along a path through a filling station by forcing the mouth edges of the unfilled foil bag away from each other and folding the mouth edges out from each other for successive folding down onto and securing to said feeding means for successive opening of the bags at the filling station and, after filling of the unfilled foil bags, bring the mouth edges of the filled foil bags together for the closing of the filled foil bags, and wherein the mouth edge of each vertically oriented, unfilled foil bag has a strip edge area provided with a series of holes or star perforations which are folded down and brought into holding engagement with the upstanding pins on the carrier chains by successively pressing the holes or star perforations down over said upstanding pins.