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2
E
QUIPMENT DESCRIPTION
2.1 O
VERVIEW OF THE
In labelling mode, the drive roller unit [2B] transports
the label ribbon from the unwinding spool [2A]. A loop
is formed in the label ribbon below the pressure roller of
the unwind unit [2C] and the braking brush [2D]. The
feed roller unit [2F] behind the dispenser head [2E]
pulls the ribbon over the dispensing edge. The label
separates from the backing material at the dispensing
edge and is transferred onto the product.
The feed roller unit moves the respective ribbon for a
label and then stops until the next product is transport-
ed to the dispensing edge. Label ribbon is continuously
unwound at the unwind unit. The loop acts as a buffer
between the continuously operating unwind unit and
the periodically operating label output. The braking
brushes keep the label ribbon taut.
From the dispensing head, the empty backing material
runs over several deflection rollers [2H] and the spring-
loaded, pivoting dancer arm [2G] to the motor-driven
spreader rewinding unit [2I]. The multiple deflections
with the spring-loaded dancer arm act as a buffer be-
tween the label output and the rewind unit. When in
operation, the dancer arm pivots back and forth con-
stantly.
The entire operation of the labeller is electronically con-
trolled and monitored. If a malfunction occurs, the con-
trol system sends a corresponding message to the
operator. If necessary, the labelling operation is auto-
matically halted. An electronic signal is issued at the
same time. The signal can be picked up and evaluated
by an external control system.
ALS 350
15
ALS
350
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