摘要:
Wrapping material which is supplied from a reel to the intermittently actuated withdrawing tongs of a cigarette packing machine is looped in a magazine adjacent to the tongs and is stabilized against fluttering and other stray movements by a pneumatic conveyor which attracts one leg of the loop and tensions it so that such leg of the loop remains in its prescribed path.
摘要:
Apparatus for testing cigarette packs for the presence or absence of several defects including the configuration of the packs, the orientation of their constituents and the quality of bonds between overlapping constituents has an intermittently driven turret with an annulus of receptacles which are supplied with packs by an intermittently driven feeding conveyor. The receptacles have relatively small engaging devices in the form of spring-biased strips, suction cups and/or simple abutments to locate and hold the packs therein in such a way that by far the major part of each pack remains accessible and exposed for testing by a series of photocells which are disposed at several stations adjacent to the path of movement of the receptacles. Tested defective and satisfactory packs are expelled from their receptacles in two separate portions of the path downstream of the testing stations.