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1. (WO1991003592) DEVICE FOR THERMALLY CUTTING A TRAVELLING WEB OF THERMOPLASTIC MATERIAL

Pub. No.:    WO/1991/003592    International Application No.:    PCT/CH1990/000179
Publication Date: Mar 21, 1991 International Filing Date: Jul 24, 1990
IPC: B26D 7/24
B26F 3/12
D06H 7/22
Applicants: TEXTILMA AG
BÜHLER, Erich
Inventors: BÜHLER, Erich
Title: DEVICE FOR THERMALLY CUTTING A TRAVELLING WEB OF THERMOPLASTIC MATERIAL
Abstract:
The cutting head (8) is arranged on the carriage (6) via a securing foot (10) and has a cutter (36) penetrating the moving material web (2). To prevent damage during malfunctions and to facilitate maintenance and adjustment work, the securing foot (10) is secured to the carriage (6) via a ratchet device (14). The retaining force of the ratchet device in the direction of travel of the web of material (2) substantially corresponds to the force of the permitted cutting resistance of the cutter (36) in the web (2) in such a way that the cutter is disengaged if the cutting resistance in the web (2) is not the permitted value.