Ultrasonic device for cutting a fusible textile web and at the same time heat-sealing the cut edges
AssigneeTextilma AG
InventorFrancisco Speich
Life of this patent
Estimating the term…
Abstract
An ultrasonic device for cutting a meltable or fusible textile web and simultaneously welding or heat-sealing the cut edges is provided. A cutting knife works together with an anvil by means of a wedge-shaped cutter. The cutting knife or the anvil is connected with an ultrasonic transmitter. The cutting knife varies in cross section along the length of the cutter. The cutting knife and/or the anvil are/is adjustable in such a way that, in each case, the cross section of the cutting knife which is suitable for a determined thickness of the textile web is used.
Claims17
Ultrasonic device for cutting a meltable textile web (6) and simultaneously heat-sealing the cut edges, with a cutting knife (12) which works together with an anvil (14) by means of a wedge-shaped cutter (22, 22a), wherein the cutting knife (12) or the anvil (14) is connected with an ultrasonic transmitter (10), characterized in that the cutting knife (12) varies in cross section (a, b, c) along the length of the cutter (22, 22a), wherein the cutting knife (12) and/or the anvil (14) are/is adjustable in such a way that, in each case, the cross section (a, b, c) which is suitable for a determined thickness (D, D.sub.1, D.sub.2, D.sub.3) of the textile web (6) is used.
Dependencies are inferred from the claim text.