Perforating apparatus for paper webs and the like, with...

Details Perforating apparatus for paper webs and the like, with... Perforating apparatus for paper webs and the like, with...

B - Operations, Transporting

65

H

B65H 35/10 (2006.01) B26D 7/08 (2006.01) B26F 1/20 (2006.01)

Patent

CA 2064680

PERFORATING APPARATUS FOR PAPER WEBS AND THE LIKE, WITH RECIPROCATING MOTION OF TRANSLATION OF THE COUNTER-BLADE ABSTRACT A perforating apparatus is disclosed for rewinding machines and the like which includes a rotating roller (5), on which cutting blades (31) are disposed. A shaft (3) carries a perfo- rating counter-blade (33) provided with indentations. An oscil- lating drive (57, 59, 61, 63, 65) is combined with the shaft (3) which causes the counter-blade 33 to move with reciprocating translation motion in a direction parallel to the axis of the rotating roller (5), so as to avoid a concentration of wear in the cutting blades (31). (Fig. 4)

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