Diagraph LA/4700, Руководство пользователя, Страница: 28 / 69

** Step 11 -
Adjust the Tamp Pad Position
Goal:
Slide the tamp cylinder module across the dovetail track to the correct position in front of the
drive module, this will be approximately 1/8th of an inch from the peel blade edge.
Goal:
Align the tamp pad height to the peel blade feed position; this should be close to 1/8th of an
inch below the peel blade edge.
Goal:
Adjust the tamp pad closer to or further away from the baseplate to align the label to the pad.
This position should allow a column of vacuum holes to be covered, while triggering the label
present sensor.
•••• Sub-Step (a) ••••
[1] Loosen the two dovetail track screws [A] (5/16 inch
socket-head cap screws) and slide the tamp cylinder
assembly into a position that gives approximately 1/8
inch gap between the peel blade edge and the tamp
pad.
[2] Once in position, tighten the dovetail track screws
firmly.
•••• Sub-Step (b) ••••
[1] Loosen the tamp cylinder mounting screws [B] (5/16
inch socket-head cap screws) and slide the tamp
cylinder in and out from the baseplate to align the
label with the pad. It is important that the label
dispensed covers the ported vacuum holes and covers
the label present sensor (if equipped). These screws
adjust the tamp pad height in relation to the peel
blade edge.
[2] Before locking the screws in place from adjusting the
in-and-out position, set the height. The labels are
optimally transferred to the tamp pad when the pad is
1/8th inch below the peel blade edge. This keeps any
label curl at the end of the label from landing back on
the peel blade edge. As the label’s adhesive is
exposed to air, the tendency is to shrink, or curl away
from the tamp pad. Some curl at the end is expected,
and by keeping the pad below the peel blade edge,
labels curling back to the liner will be avoided.
[3] Once the pad has been adjusted, tighten the screws
and apply air pressure to the system and re-check the
tamp pad position. The adjustment of the tamp
cylinder’s air cushion will effect the resting height at
home of the cylinder, and thus the tamp pad. Be sure
to check this height again, after all pressures and
adjustments to the tamp system are complete.
[4] If the position looks correct, tighten the mounting
screws firmly.
Label is covering
outer vacuum
rows
TAMP
FASA
Diagraph - an ITW Company LA/4700 User Manual - Revision B
Setup Page 27
Setup