B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
270/143
B65H 3/12 (2006.01) B65B 43/18 (2006.01)
Patent
CA 1077979
ABSTRACT OF THE DISCLOSURE The invention provides a conveyor for feeding portions of sheet material, particularly preshaped or punched pieces of cardboard or the like, to a user machine, particularly an inter- mittent machine for packaging cigarettes into hinged lid packets, the conveyor being of the type comprising an inlet station and an outlet station for said preshaped pieces, a support and slide surface for said preshaped pieces extending between said inlet station and said outlet station, a plurality of transverse elements defining a plurality of conveying compartments for said preshaped pieces, means for feeding said conveying compart- ments stepwise towards said outlet station, vertical guide means disposed downstream of said inlet station to control the vertical position of the preshaped pieces inside the relative compartments along at least part of their feed path, and pneumatic extractor means associable with a preshaped pieces disposed above said inlet station to extract said preshaped pieces one at a time from a bottom aperture in said vessel and deposit them on said support and slide surface each into a respective compartment disposed at said inlet station, and also comprising at least one vertical guide element for said preshaped pieces, disposed at said inlet station and swinging to and from a working position in which it interferes with the falling path of said preshaped pieces from said vessel under the action of said extractor means, and operating means connected in parallel to said stepwise feed means and arranged to move said swinging guide element away from said working position as said extractor means descend towards said inlet station, and to return it there on termination of the descent.
277608
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