Convolute winding of paper cores
AssigneeCFE Nordic AB
InventorKarl-Henrik Axelsson
Life of this patent
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Abstract
A method for producing a convolute paper core of a desired width and thickness, the method including unwinding paper from a paper roll, thereby creating unwound paper, conveying the unwound paper to a cutting position in a feeding direction, cutting the unwound paper, thereby creating a paper sheet having a length L, conveying the paper sheet from the cutting position to a mandrel in a winding direction, wherein the winding direction is perpendicular to the feeding direction, adhesively and convolutely winding the paper sheet on the mandrel so as to produce a paper core, so that a width W of the paper core is equal to the length L, and repeating the steps of unwinding, conveying, cutting, conveying and adhesively and convolutely winding a plurality of paper sheets until the paper core has the desired thickness.
Claims16
A method for producing a convolute paper core of a desired width and thickness, comprising:
- unwinding paper from a paper roll, thereby creating unwound paper;
- conveying said unwound paper to a cutting position in a feeding direction;
- cutting said unwound paper, thereby creating a paper sheet having a length L;
- conveying said paper sheet from said cutting position to a mandrel in a winding direction, wherein said winding direction is perpendicular to said feeding direction;
- adhesively and convolutely winding said paper sheet on said mandrel so as to produce a paper core, so that a width W of said paper core is equal to said length L;
- and
- repeating the steps of unwinding, conveying, cutting, conveying and adhesively and convolutely winding a plurality of paper sheets until said paper core has the desired thickness;
- wherein a subsequent paper sheet is conveyed to said mandrel and placed adjacent to or in contact with a preceding paper sheet before said preceding paper sheet is completely wound by said mandrel so as to form a sheet with a uniform thickness comprising both of the individual sheets.
Dependencies are inferred from the claim text.