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VL-HP
Service
& Operation Manual
U.S. TAX STAMPING
EQUIPMENT
Manufactured by United Silicone
an ITW company
9.0 In-feed Table:
The PLC controls when the in-feed conveyor is on and off. The operator can turn off the table
feed with a switch mounted on the side of the conveyor unit
9.1 In-feed Tip-Over Sensing:
Infeed tip-over sensing is accomplished by two small cylindrical sensors located along the side
of the infeed conveyor opposite the operator (Figure 9.1). As soon as the lower tip-over sensor
is triggered, the system watches to see if the upper tip-over sensor is also triggered. If the top
sensor is not “made” within about 0.05 seconds, then the machine assumes that a carton has
tipped over on the in-feed conveyor. This causes the machine to enter a “tip-over mode”. While
in tip-over mode, the touchscreen displays a text fault message on the main operator screen.
Figure 9.1 Carton Tip-Over Sensors
10.0 In-feed carton lift
There are two “through beam” photo sensors that detect when a carton has dropped from the in-
feed conveyor onto the lifting plate (Figure 9.1). Both of these sensors must be made before the
carton lifter assembly lifts the carton to the ceiling plate. This establishes the working height for
the carton as it is advanced through the machine. A third sensor detects that the carton has been
successfully lifted and must be made before the cycle can continue. As the carton drive indexes,
the pusher block behind the carton will advance it to each station.
Summary of Contents for VL-HP
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