Method and device for the production of a number of coiled foil rolls
AssigneeSml Maschinengesellschaft M. B. H.
InventorThomas Rauscher
Life of this patent
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Abstract
The coiled foil rolls are reinforced in their edge region by folding. The coiled foil rolls are made by supplying a foil to coiling devices; cutting the foil in a conveying direction with a knife so that at least two foil sections are created which extend in a conveying direction; folding the edge regions of the foil sections by a folding device and laying the folded sections and the remaining part of the foil section on each other; and coiling the foil sections with the coiling devices. The knife or the folding device are moved simultaneous oscillating back and forth in a direction transversal to the conveying direction during the coiling of the foil sections.
Claims11
A method for the production of a number of coiled foil rolls, wherein the foils are reinforced in both edge regions by folding, wherein the method comprises the steps of:
- a) supplying of a foil which extends along a total width in a conveying direction to a plurality of coiling devices;
- b) cutting of the foil in the conveying direction by means of at least one knife, so that at least two foil sections are created which extend in the conveying direction;
- c) folding of the edge regions of the foil sections by means of at least one folding device to form folded sections, and laying the folded sections and the remaining part of a respective foil section upon each other to form folded edge regions;
- d) coiling of each of the at least two foil sections on one or more of the plurality of coiling devices;
- wherein the at least one knife and the at least one folding device are moved simultaneous oscillating back and forth in a direction transversal to the conveying direction during the coiling of the foil sections on the one or more of the plurality of coiling devices.
Dependencies are inferred from the claim text.