Counter-rotating knife paper tail ripper

Details Counter-rotating knife paper tail ripper Counter-rotating knife paper tail ripper

B - Operations, Transporting

26

D

164/112

B26D 1/147 (2006.01) B23D 31/04 (2006.01) B26D 1/29 (2006.01) B65H 29/24 (2006.01) D21G 9/00 (2006.01)

Patent

CA 2028443

A paper tail ripper having a pair of rotatably mounted knives, air motors which counter-rotate the knives, and an air jet which deflects the paper tail toward the knives. The knives traverse closely spaced overlapping circles as they counter-rotate. The air jet blows the paper tail onto a transfer mechanism which transfers the paper tail away from the ripper, so that the tail may be threaded through a calender stack, etc. The ripper is pivotally mounted on the transfer mechanism for movement between storage and operating positions. A funnel-shaped housing is positioned over the knives to guide the de- flected paper tail into a narrow feed channel centred over the knives.

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