Baumfolder Flexifold: Pile Folder (up to 2004) - Manual (Page 13)

PAGE 13 TP10456-EN
14. The register is supplied with 2 short sheet
holddowns and 1 long sheet holddown. The 2 short
holddowns should always be used. They are placed in
front of the sucker wheel guard assembly on the angle
braces above the register ribs. The long holddown is
used on sheets that require the register gage to be
beyond the end of the sucker wheel guard assembly.
15. The pile feeder and register has a double
sheet detector designed to stop double sheets from
being fed onto the register and being folded. This
allows the double sheet to be stopped at the double
sheet detector and be removed while the previously
fed sheets are folded without interruption. This will
also shut off the vacuum to the sucker wheel,
preventing more sheets from being fed until the double
sheet is cleared.
The double sheet detector’s main functional
components are the sensing cam, roller bearing and
proximity sensor. When a single sheet is ran through
the double sheet detector, the sheet will pass between
the sensing cam, and roller bearing without any drag,
thus the sensing cam will not move. If the sensing cam
does not move, the proximity sensor will continue to
see the sensing cam, and the pile feeder will continue
feeding sheets.
If two or more sheets are fed by the pile
feeder, this will cause the sensing cam to rotate in the
direction of the paper travel. As the sensing cam
rotates, the gap between the sensing cam and roller
bearing will close up, and actually pinch the sheets. As
the sensing cam rotates, the gap between the sensing
cam and roller bearing will close up, eventually
pinching the multiple sheets. This will cause the sheets
to stop immediately from traveling further on the
register, and the proximity sensor will no longer sense
the sensing cam. This will cause the pile feeder
operator control panel to display “DOUBLE
SHEET”. A double sheet error on the pile feeder will
prevent sheets from being fed by the sucker wheel
until the double sheet error is cleared.
The double sheet detector must be set up so
that the sensing cam remains untouched when a single
sheet of paper is passed through. It also must be set
up so that when 2 or more sheets of paper are fed
The double sheet detector will now only allow
one sheet thickness to pass through, and stop multiple
thicknesses from passing through.
The double sheet detector will need to have
this set up done for every job in which the stock
changes.
16. The pile feeder is equipped with an
adjustable blow bar for different stock types and sizes.
This blow bar is located on the pile feeder below the
sucker wheel guard assembly. The blow bar has 5
different settings to change the number of locations in
which the blow bar allows air to be blown into the pile
for sheet seperation. The blow bar is also designed to
pivot, to allow air to blown into the proper position on
the stack to allow for proper sheet seperation.
To set up the blow bar follow these
instructions:
through, the cam must be pushed in the direction of the
paper travel. This setup is acheived by doing the
following:
A. Tear two 0.75” (19.05mm) strips of the
paper to be folded.
B. Lift the lever of the double sheet detector
up.
C. Place the two strips of paper in between
the lever and the stationary block.
D. Gently pull on the strips of paper to be sure
that they are being held by the block and lever.