A grasping device for grasping insert sheets for a loading device for loading insert sheets at a station for receiving blanks being moved in a blank feeding direction, the grasping device comprising:
- a suction element configured to grasp an insert sheet;
- a pivoting axle, and at least one telescopic arm configured to move insert sheets in a direction different from the blank feeding direction, the telescopic arm comprised of:
- a proximal arm, one end of the proximal arm being fixed to the pivoting axle and configured to be pivoted so as to pivot the telescopic arm with respect to the pivoting axle, and
- a distal arm movable with respect to the proximal arm, one end of the distal arm is pivotally articulated with the suction element and configured to move the suction element between an upper position and a lower position by a vertical movement of the suction element,
- wherein the distal arm is configured to move with respect to the proximal arm so as to increase a length of the telescopic arm from a first length of the telescopic arm at a start of a pivoting swing of the telescopic arm at the upper position to a second length of the telescopic arm at a remote end of the pivoting swing of the telescopic arm at the lower position, the second length being greater than the first length.