Cutting – Operation controlled by detector means responsive to work – With plural work-sensing means
Patent
1996-10-15
1998-08-11
Rachuba, Maurina T.
Cutting
Operation controlled by detector means responsive to work
With plural work-sensing means
833563, 83924, 83303, B26D 500
Patent
active
057912203
ABSTRACT:
A cutting device of packing apparatus includes at least three cutting blades arranged around the packing material expanding cylinder in a substantially equally-spaced manner. The cutting blades are rotatable about their own rotational axes in a synchronous manner for cutting off the continuous packing material along a circumferential slit formed on the cylinder. This simplifies the overall structure by eliminating a mechanism to move the blades around the cylinder. By using a number of blades rotatable in synchronization with each other, the time period for a single blade in contact engagement with the packing material to be cut off is substantially reduced and the efficiency of the cutting operation is enhanced. Due to the enhanced efficiency, the delay of time in the alternation of the feeding operation and cutting operation is lowered down. Further, the cutting blades are rotated in a continuous, non-intermittent manner and the rotation speed thereof is controlled to allow the blades to contact the packing material at an interval that is sufficient to forward the packing material to the desired length to be cut off.
REFERENCES:
patent: 3114282 (1963-12-01), Reifenhauser et al.
patent: 4488467 (1984-12-01), Hegler et al.
patent: 4703765 (1987-11-01), Paules et al.
patent: 5531858 (1996-07-01), Hong
Benison & Co., Ltd.
Rachuba Maurina T.
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