| 摘要 |
<p>A fixed cutter (15) is provided on a top surface (8a) of an adsorption type carrying belt (8) that carries a film. A cylindrical cutter holder (33) having a rotary cutter (16) is provided in the vicinity of the fixed cutter. The fixed cutter (15) has nearly a triangular cross section, and includes an inclined surface (15a) that guides the film on the top surface (8a) of the belt (8) to a blade edge (23) and a flank relief (15b) having nearly a V-shaped cross section. A vibration preventing hook that restricts a deformation caused by the toughness of the blade edge (23) is pressed against the flank relief. A blade edge (37) of the rotary cutter (16) is disposed at an offset position. The film is cut by a relative operation of the blade edges (23, 37) while rotating the rotary cutter with respect to the fixed cutter (15). Both of the cutters (15, 16) are installed in a cutter unit, and are fixed to a frame part of a packaging machine while performing positional adjustment. The fitting position of both cutters can be adjusted before the cutter unit is attached to a film cutting device. <IMAGE></p> |
