IMPROVEMENTS IN OR RELATING TO PACKAGING

摘要

A capping apparatus (16) for a carton filling system has an ultrasonic stack assembly (20) and a fitment applicator assembly (18) for applying fitments to cartons in a packaging machine. The fitment applicator assembly (18) has an anvil (22) having at least two spigots and is turnable and reciprocable to receive fitments and to mount them in carton walls. The anvil location can be adjusted by a thrust bearing (44) connectible to a spline shaft (34) of a rotary ball spline (32), (34). The ultrasonic stack assembly (20) has ultrasonic stacks (26) that are reciprocated between a retracted position and an engaging position by dual rail arrangements (56) to bring horns (28) into contact with outer surfaces of the cartons. The overall height of a wedge arrangement (52) for each ultrasonic stack (26) is adjustable to increase and decrease selectively the distance between the horns (28) and a ground surface.