Multi-path interfolding apparatus
First Claim
1. A multi-path interfolding apparatus, comprising, first and second sheet-cutting-and-overlapping arrangements and an interfolding arrangement, simultaneously mounted and operatively interconnected in a common frame, for alternatively selectively forming a first interfolded pattern having a folded width from overlapped sheets of a first length cut from a web of sheet material fed along a first path extending through the first sheet-cutting-and-overlapping arrangement to the interfolding arrangement, or forming a second interfolded pattern having the same folded width from overlapped sheets of a second length cut from the web of sheet material fed along a second path extending through the second sheet-cutting-and-overlapping arrangement to the interfolding arrangement.
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Accused Products
Abstract
An interfolding apparatus and method, utilize, first and second sheet-cutting-and-overlapping arrangements and an interfolding arrangement simultaneously mounted and operatively interconnected in a common frame, for alternatively selectively forming a first or a second interfolded pattern having a given folded width, without replacement of components of the interfolding apparatus. The first interfolded pattern is formed from a first stream of overlapped sheets of a first length cut from a web of sheet material fed along a first path extending through the first sheet-cutting-and-overlapping arrangement to the interfolding arrangement. The second interfolded pattern is formed from a stream of overlapped sheets of a second length cut from the web of sheet material fed along a second path extending through the second sheet-cutting-and-overlapping arrangement to the interfolding arrangement.
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Citations
26 Claims
- 1. A multi-path interfolding apparatus, comprising, first and second sheet-cutting-and-overlapping arrangements and an interfolding arrangement, simultaneously mounted and operatively interconnected in a common frame, for alternatively selectively forming a first interfolded pattern having a folded width from overlapped sheets of a first length cut from a web of sheet material fed along a first path extending through the first sheet-cutting-and-overlapping arrangement to the interfolding arrangement, or forming a second interfolded pattern having the same folded width from overlapped sheets of a second length cut from the web of sheet material fed along a second path extending through the second sheet-cutting-and-overlapping arrangement to the interfolding arrangement.
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16. A multi-path interfolding method, comprising:
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simultaneously mounting and operatively connecting first and second sheet-cutting-and-overlapping arrangements and an interfolding arrangement in a common frame to form an interfolding apparatus; and alternatively selectively forming a first interfolded pattern having a folded width from overlapped sheets of a first length cut from a web of sheet material fed along a first path extending through the first sheet-cutting-and-overlapping arrangement to the interfolding arrangement, or forming a second interfolded pattern having the same folded width from overlapped sheets of a second length cut from the web of sheet material fed along a second path extending through the second sheet-cutting-and-overlapping arrangement to the interfolding arrangement. - View Dependent Claims (17, 18, 19, 20)
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21. A multi-path interfolding apparatus comprising:
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first and second sheet-cutting-and-overlapping arrangements and an interfolding arrangement, simultaneously mounted and operatively interconnected in a common frame, for alternatively selectively forming a first interfolded pattern having a folded width from overlapped sheets of a first length cut from a web of sheet material fed along a first path extending through the first sheet-cutting-and-overlapping arrangement to the interfolding arrangement, or forming a second interfolded pattern having the same folded width from overlapped sheets of a second length cut from the web of sheet material fed along a second path extending through the second sheet-cutting-and-overlapping arrangement to the interfolding arrangement; the interfolding arrangement including, a pair of interfolding rolls of substantially the same diameter operatively mounted for rotation in opposite directions to one another at the same rotational speed to thereby generate a substantially identical interfolding roll peripheral speed (IFS); the pair of interfolding rolls forming an interfolding nip therebetween, with both the first and second paths extending through the interfolding nip, the interfolding rolls being cooperatively configured to form an interfolded stack having the folded width from the stream of the first sheets fed along the first path extending through the interfolding nip, or alternatively to form an interfolded stack having the folded width from the stream of the second sheets fed along a second path extending through the nip; the first sheet-cutting-and-overlapping arrangement including a first overlap roll rotatably mounted in the frame and having a rotational speed and diameter generating a first overlap roll peripheral speed (FOS) which is faster than the interfolding roll peripheral speed (IFS); the second sheet-cutting-and-overlapping arrangement including a second overlap roll rotatably mounted in the frame and having a rotational speed and diameter generating a second overlap roll peripheral speed (SOS) which is faster than the interfolding roll peripheral speed (IFS) and faster than the first overlap roll peripheral speed (FOS); the first sheet-cutting-and-overlapping arrangement also including a first sheet cutting arrangement mounted in the frame for receiving and cutting the web of material to generate and deliver a stream of the first sheets along the first path to the first sheet-cutting-and-overlapping arrangement at a first cut-sheet speed substantially equal to the first overlap roll peripheral speed (FOS); the second sheet-cutting-and-overlapping arrangement also including a second sheet-cutting arrangement mounted in the frame for receiving and cutting the web of material to generate and deliver a stream of the second sheets along the second path to the second sheet-cutting-and-overlapping arrangement at a second cut-sheet speed substantially equal to the second overlap roll peripheral speed (SOS). - View Dependent Claims (22, 23, 24, 25, 26)
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Specification