B - Operations – Transporting – 65 – B
Patent
B - Operations, Transporting
65
B
156/31, 156/32
B65B 11/18 (2006.01) B65B 19/32 (2006.01)
Patent
CA 1040521
ABSTRACT OF THE DISCLOSURE The invention provides an apparatus for checking and discarding lengths of wrapping material in high speed cigarette packing machines comprising: a conveyor, an intermittent drive having compartments for feeding bundles of cigarettes from their assembly zone to a final position from which they are transferred to a first wrapping station; at least one control device placed along the conveyor to check for missing or faulty bundles; means for ejecting faulty bundles placed along the conveyor downstream of the or each control device and controlled thereby; a feed line for feeding lengths of wrapping material in a direction substantially perpendicular to the advance direction of the bundles to a take-up position in the path of the bundles between the final position and the first wrapping station; a retractable step on which the ends of the lengths of wrapping material abut beyond the take-up position; and means for transferring the bundles of cigarettes together with a length of wrapping material from the final position to the first wrap station; at least one wheel adapted to be driven in contin- uous rotation in the path of said lengths of material beyond said take up position; and means responsive to the or each control device for engaging said wheel with the length of wrapping paper in the take-up position and retracting said step to discard said lengths when a faulty or missing bundle is detected.
274910
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