Envelope edges trimming machine - using divided rotating knives working with fixed counter knives with one section being adjustable

摘要

The machine is used to make incisions into the edges of moving strips of material with the use of divided rotating wing knives acting together with fixed counter knives as in 2 453 392. Out of the divided group of knives (7 and 8; 9 and 10)1) working on the material at least one pair of the section of knives lying opposite each other (8, 10) together with the counter knives (12, 13) connected to the frame of the machine are arranged adjustable parallel to the material track (11).