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5
Chapter
Theory of Operation
Apply Only Labeling
Straight Tamp (Touch and Go Linear Applicator) or
Swing Arm Applicator.
The LX600 Apply Only Labeling system is configured in either a
Straight Tamp (Linear Actuator) with a "Touch and Go" Sensor
or with a Rotary Actuator that would provide for a "Swing Arm"
type Label Application for various label application scenarios.
In Straight Tamp (Touch and Go Applications), the labeler
operates when it gets a signal from the product sensor. The
motor turns on and the label is presented out to the applicator
pad and held in place by a vacuum pad that has been designed for
the label size being applied to the box. While being dispends out
to the vacuum pad, a blow tube is turned on to blow a stream or
air to orient the label out to the pad. The fiber optic Label Gap
Sensor determines the end of the label and the PLC program
turns off the blow tube and engages the vacuum solenoid and
stops the motor from turning. At this point the Product Delay
timer times out to the setting as entered by the operator. Once
the Product Delay has time out, the PLC engages the Tamp
Cylinder Apply Solenoid valve to extend and tamp the label on to
the box. A sensor on the pad (Touch and Go Sensor) sees the
target; it sends a signal back to the PLC to turn on the Cylinder
Retract Solenoid valve to return the cylinder to the home position
where a Reed Switch senses the home Position which signals the
PLC that it can accept another label should the product detection
photocell detect another box.
In the Swing Arm Applicator, a timer replaces the Reed switch
and the home sensor provides that signal for proper sequencing
as described above.
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