| 摘要 |
<p>A wire advancement device (90) and a method in a rotary stapling machine which wire advancement device comprises a wire source (91, 92), an advancement system (93, 94) and a driving motor (95) arranged so that wire (T) from the wire source is continuously advanced via the advancement system to a first and a second wire introduction assembly (41, 42) mounted in a staple pick-up zone (31) in the rotary stapling machine, and that the wire introduction assemblies are provided with cutting edges that co-operate with the corresponding cutting edges of stapling forks (21, 21'), the cutting edges being arranged to cut off a length of wire advanced to the wire introduction assemblies (41) and forming a staple blank at each revolution the stapling fork (21) passes the wire introduction assembly (41), as well as that guide means (43, 44) are arranged to allow that the first wire introduction assembly (41) only delivers staple blanks to one of the stapling forks (21) and to allow the second wire introduction assembly (42) to only deliver staple blanks to the other one of the stapling forks (21') by the guide means (43, 44) providing a displacement of the respective wire introduction assembly (41, 42) in the direction away from the stapling cylinder to allow free passage of a stapling fork (21, 21').
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