Abstract: An improved article packaging machine, and method of using same to prevent the formation of empty or defective packages is disclosed. The rotational position of the drive axis (45) of a film feed drive (44), and the drive axis (53) of a cutting head drive (52) are mapped with respect to one another in a base rotational position relationship, whereupon both of these drive axes are mapped to the rotational position of the drive axis (41) of an infeed conveyor drive (40) in a slave/master relationship, respectively. A machine controller (34) then calculates at least a first position control trajectory profile, and establishes a first rotational position relationship of the drive axes with respect to one another.

Abstract: An end seal wrapping machine (10), and method of forming an end seal in a spaced series of articles (A) moved therethrough, is disclosed. The wrapping machine has a first rotating shaft (40) on which at least a first upper sealing and crimping head (41a, 41b) is positioned, with a spaced second counter-rotating shaft (81) on which a second opposed sealing and crimping head (82a, 82b) is positioned. The wrapping machine is supplied with a regularly spaced series of articles which are substantially enclosed in a continuous tube (27) of packaging film (20) upstream of the sealing and crimping heads. The articles in the tube of packaging film are passed between the sealing and crimping heads for being wrapped within the film. The first sealing and crimping head includes an elongate knife (43) formed as a part thereof, with an elongate platen (92) formed as a part of the second sealing and crimping head, and opposed to the knife.

Abstract: A temperature measurement and control apparatus (7) and a packaging film loading apparatus (9) for use in a packaging machine (5). The packaging machine includes a pair of counter-rotating sealing and crimping head assemblies (22, 23), each of which includes a plurality of sealing and crimping heads (32, 36), respectively, which are rotated past a first infrared sensor assembly (57) or a second infrared sensor assembly (61), respectively, for measuring the temperature thereof. Each sealing and crimping head includes a generally arcuate sensing arc (80) mounted at the first end (77) thereof, the sensing arcs being rotated past either an upper infrared sensor (59) or a lower infrared sensor (63).