OSCILLATING KNIFE-ROTATING ANVIL FLYING CUTTER

A flying cut-off knife for severing a continuously moving web of corrugated paperboard or the like to any length or lengths required; a length-setting switch directs a servo-system which effects close tolerance running changes in lengths cut taking into account board velocity and distance advanced;...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	WATSON R,US
Format:	Patent
Sprache:	eng
Schlagworte:	BROACHING CUTTING DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING,CUTTING-OUT, STAMPING-OUT OR SEVERING FILING HAND CUTTING TOOLS LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOTOTHERWISE PROVIDED FOR MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PLANING SAWING SCRAPING SEVERING SHEARING SLOTTING TRANSPORTING
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Beschreibung
Zusammenfassung:	A flying cut-off knife for severing a continuously moving web of corrugated paperboard or the like to any length or lengths required; a length-setting switch directs a servo-system which effects close tolerance running changes in lengths cut taking into account board velocity and distance advanced; the servo-system controls a low inertia oscillating shaft having a pivotally retracting blade which rides against a mechanical rotation stop during cutting; prior to cutting the servo-system matches blade velocity to concurrently measured board velocity; cutting is simultaneous across the board; at the deepest point the blade penetrates through into the surface of a synchronously rotating anvil drum supporting the far side of the board; the principal parts of the invention are related by three parallel axes substantial superimposed.