EMERGENCY STOP CUTTING MECHANISM FOR A WEB REWINDING DEVICE

This invention provides web-cutting mechanism (170) that can be mounted in line at an appropriate location between a web-handling peripheral (printer) and a web roll (130). The cutting mechanism operates before the available storage in a winder festoon (121) has been exhausted, and decouples the rol...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MERCURIO, Gregory, SILVA, Stephen E
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES PACKING PERFORMING OPERATIONS STORING TRANSPORTING
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Beschreibung
Zusammenfassung:	This invention provides web-cutting mechanism (170) that can be mounted in line at an appropriate location between a web-handling peripheral (printer) and a web roll (130). The cutting mechanism operates before the available storage in a winder festoon (121) has been exhausted, and decouples the roll's energy from the web (110). The cutting mechanism (170) can employ a blade that is drawn through the web solely by the movement of the web itself. The blade is mounted at a (e.g.) 45-degree angle to web travel, causing it to be pulled through the web. A negator spring assembly and associated cable drives the blade into the side edge of the web when a slide-mounted blade shuttle assembly is released by a latching pawl of a solenoid assembly. The solenoid is triggered by a signal (190) indicating an emergency stop condition, such as an upstream jam.