Transverse cutting device for cutting into lengths a strip traveling continuously along a predetermined path
First Claim
1. A transverse cutting device (1,51) for cutting into lengths (2) of a predetermined size a strip (3) traveling continuously along a predetermined first path, said device comprising means (4) for feeding and guiding said strip (3) along said first path and through a cutting station (9);
- and a cutting unit (11) for successively cutting said strip (3) transversely;
said cutting unit (11) comprising at least one cutting element (39,57);
supporting and actuating means (12,17,24,52) for moving said cutting element (39,57) along an endless second path (46) laying on a plane extending substantially transversely to said first path, and intersecting said first path in said cutting station (9), and along a given cutting line, the first path having a line (45) forming a given angle (A) with a line perpendicular to said cutting line;
a means (18,19) for adjusting the position of the plane of said second path in such a manner that, for a given speed of said strip (3) along said first path, said angle (A) depends on the size of said lengths (2) and traveling speed of said cutting element (39,57) along said cutting line;
said feeding and guide means (4) comprising a roller (5) turning about an axis perpendicular to said first path, and at least one longitudinal groove formed alng a peripheral surface of said roller (5);
said cutting element (39,57) moving, in use, along said groove (8) as said groove (8) is advanced by said roller (5) through said cutting station (9).
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Accused Products
Abstract
A transverse cutting device for cutting into lengths a strip traveling continuously along a predetermined path, which device presents a drum for feeding and guiding the strip through a cutting station; and a cutting unit for successively cutting the strip transversely; at least one cutting element on the cutting unit being moved along an annular path lying in a plane intersecting the path of the strip in the cutting station, and along a given line forming an adjustable angle with a transversal intersecting the path of the strip; and the roller presenting peripheral grooves for longitudinally stretching the strip in the cutting station.
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Citations
6 Claims
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1. A transverse cutting device (1,51) for cutting into lengths (2) of a predetermined size a strip (3) traveling continuously along a predetermined first path, said device comprising means (4) for feeding and guiding said strip (3) along said first path and through a cutting station (9);
- and a cutting unit (11) for successively cutting said strip (3) transversely;
said cutting unit (11) comprising at least one cutting element (39,57);
supporting and actuating means (12,17,24,52) for moving said cutting element (39,57) along an endless second path (46) laying on a plane extending substantially transversely to said first path, and intersecting said first path in said cutting station (9), and along a given cutting line, the first path having a line (45) forming a given angle (A) with a line perpendicular to said cutting line;
a means (18,19) for adjusting the position of the plane of said second path in such a manner that, for a given speed of said strip (3) along said first path, said angle (A) depends on the size of said lengths (2) and traveling speed of said cutting element (39,57) along said cutting line;
said feeding and guide means (4) comprising a roller (5) turning about an axis perpendicular to said first path, and at least one longitudinal groove formed alng a peripheral surface of said roller (5);
said cutting element (39,57) moving, in use, along said groove (8) as said groove (8) is advanced by said roller (5) through said cutting station (9). - View Dependent Claims (2, 3, 4, 5, 6)
- and a cutting unit (11) for successively cutting said strip (3) transversely;
Specification