Method and apparatus for manufacturing interfolded toweling
First Claim
1. A method for manufacturing toweling interfolded in a zigzag manner particularly partially overlapping, interfolded toweling folded "n" times, wherein "n" is an even number or an odd number, by an interfolder having two counter rotating folding rollers, said method comprising:
- choosing "n" either as an even number or as an odd number;
alternately cutting sections of toweling of equal length from a first continuously advancing web of material and from a second continuously advancing web of material;
separating by accelerating each of said cut sections of toweling in the direction of advancement to a specified length;
reconducting together each said cut sections of toweling in an ordered first sequence such that said cut sections of toweling having an overlap which is adjustable and equal;
continuously folding said first sequence of cut sections of toweling in a zigzag manner into a second sequence; and
forming said second sequence of cut toweling folded in a zigzag manner into a folded stack.
1 Assignment
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Accused Products
Abstract
A method and apparatus is provided for manufacturing toweling interfolded in a zigzag manner, particularly partially overlapping, interfolded toweling folded "n" times. The method includes alternatingly cutting sections of toweling of equal length from a first continuously advancing web of material and from a second continuously advancing web of material, separating each of the cut sections of toweling in the direction of advancement to a specified length by extraction devices, reconducting together each of the cut sections of toweling and with a staggering device ordering a first sequence such that the cut sections of toweling have an overlap which is adjustable and equal, continuously folding with a pair of counter rotating folding rollers the first sequence of cut sections of toweling in a zigzag manner to a second sequence, and forming the second sequence of cut toweling folded in a zigzag manner into a folded stack.
15 Citations
21 Claims
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1. A method for manufacturing toweling interfolded in a zigzag manner particularly partially overlapping, interfolded toweling folded "n" times, wherein "n" is an even number or an odd number, by an interfolder having two counter rotating folding rollers, said method comprising:
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choosing "n" either as an even number or as an odd number; alternately cutting sections of toweling of equal length from a first continuously advancing web of material and from a second continuously advancing web of material; separating by accelerating each of said cut sections of toweling in the direction of advancement to a specified length; reconducting together each said cut sections of toweling in an ordered first sequence such that said cut sections of toweling having an overlap which is adjustable and equal; continuously folding said first sequence of cut sections of toweling in a zigzag manner into a second sequence; and forming said second sequence of cut toweling folded in a zigzag manner into a folded stack. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An interfolder for manufacturing toweling from first and second continuously advancing webs of material, said toweling being folded in a zigzag manner, particularly overlapping, interfolded toweling folded "n" times, wherein "n" is an even number or an odd number, wherein sections of toweling of equal length are alternatively cut from said first and second webs of material, the cut sections are separated in the direction of advancement to a specified length and the cut sections of the first and second webs reconducted together in an ordered first sequence having an equal and adjustable overlap, the first sequence is continuously folded in a zigzag manner into a second sequence, and the second sequence formed into a folded stack, said interfolder comprising:
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means for choosing "n" either as an even number or as an odd number; a first feeder means for continuously feeding said first web of material; a second feeder means for continuously feeding said second web of material; a first transverse cutting means for cutting sections of toweling of equal length from said first web of material; a second transverse cutting means for cutting sections of toweling of equal length from said second web of material; a first extraction means for separating by accelerating said sections of toweling cut from said first web to a specified length in the direction of advancement; a second extraction means for separating by accelerating said sections of toweling cut from said second web to a specified length in the direction of advancement; reconducting means for reconducting the sections of toweling cut from said first and second webs; staggering means for ordering said cut sections of toweling cut from said first and second webs in a first sequence having an equal and adjustable overlap; and a pair of counter rotating folding rollers and a packing track for continuously folding the cut sections of toweling of said first sequence in a zigzag manner into a folded stack.
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9. An interfolder for manufacturing toweling from first and second continuously advancing webs of material, said toweling being folded in a zigzag manner, particularly overlapping, interfolded toweling folded "n" times, wherein sections of toweling of equal length are alternatingly cut from said first and second webs of material, the cut sections are separated in the direction of advancement to a specified length and the cut sections of the first and second webs reconducted together in an ordered first sequence having an equal and adjustable overlap, the first sequence is continuously folded in a zigzag manner to a second sequence, and the second sequence formed into a folded stack, said interfolder comprising:
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a first feeder means for continuously feeding said first web of material; a second feeder means for continuously feeding said second web of material; a first transverse cutting means for cutting sections of toweling of equal length from said first web of material; a second transverse cutting means for cutting sections of toweling of equal length from said second web of material; a first extraction means for separating said sections of toweling cut from said first web to a specified length in the direction of advancement; a second extraction means for separating said sections of toweling cut from said second web to a specified length in the direction of advancement; reconducting means for reconducting the sections of toweling cut from said first and second webs; staggering means for ordering said cut sections of toweling cut from said first and second webs in a first sequence having an equal and adjustable overlap; wherein said staggering means comprises; a staggering roller having an outer lining and formed of a plurality of coaxial, wheel shaped staggering discs in a torsion-free position on a common shaft; a counter roller which forms a common parallel roller gap with the outer lining of the staggering roller; and a plurality of staggering cylinders which are pressed against the counter roller of the staggering means in the roller gap and which extend into the periphery of said staggering roller; and a pair of counter rotating folding rollers and a packing track for continuously folding the cut sections of toweling of said first sequence in a zigzag manner into a folded stack. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification