Diagraph - an ITW Company PA/4600 & PA/6000 User Manual
System Modules Page 6
System Modules
2.0 System Modules
2.1 Mechanical SubSystem
Unwind P/N: 4600-605
Rewind P/N: 4600-606
Tamp Pad P/N: 4600-610 Width x Length
The unwind is designed to capture supply
rollsupto14inchesindiameter,with3inch
cores. This subsystem uses a hub‐based fin
design to capture the supply roll without
need for an outer disk. This reduces
downtime in performing supply roll
changeouts, and allows small variations in
core
diameters.
The rewind is driven by a brushless DC
motor,whichgreatlyincreasesthelifeofthe
rewind system. This subsystem requires no
adjustments. There is no clutch on the
rewind,it usesthemotor’smagneticfieldto
develop holding torque. The rewind is belt
driven, using an automatic tensioner. This
belt
should be inspected for wear at the
recommendedserviceintervals.
The tamp pad captures the label from the
printer, andholds itundervacuumuntil the
time when the label is to be applied to the
product.Thereareseveralsizesoftamppads,
to accommodate a wide variety of label
dimensions. Each pad can be ported,
typicallyonce,fora
particularlabelsize.The
padvacuumholesarearrangedintocolumns,
whicharenotpunchedthrough.Whenapad
is ported, the proper columns are punched
out so that vacuum can draw the label onto
the pad. For most applications, the column
closest to the printer andthecolumn on
the
furthest end of the label (from the printer)
areported.
The tamp pad has provisions for mounting
the label present and auto retract sensors.
Thesesensorsmustbemounted flushto the
bottomofthepad,foroptimumsensing.
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