Baumfolder BAUM18: Pile Folder 1st Station (from 1999 thru 2005) - Manual (Page 35)

PAGE 35 TP10313-1
1.4 Trimming Edges of Booklets
Figure 38 shows the setup of cutting blades and strippers
for trimming edges of booklets or outer edges of circulars
running two or more up.
Cutting blades are attached to blade holder collars so
that the bevel of blades on the upper shaft are directed
toward the strip being trimmed and the bevel of blades on
the lower shaft are directed away from the strip. Blades
mounted in this manner tend to turn trimmed edges down
which helps guide them to the floor. Blade holder collars
are turned out to allow a set of pull-out tires to be placed
close to the cutting blades, preventing the sheet from
buckling or twisting at the point where the cut is being
made.
Use as many additional pull-out tires in the center of the
sheet as necessary.
Set the collar, with blade attached, in the proper position
on the upper shaft. Then move the collar/blade on the lower
shaft so that the flat sides of both blades press snugly
together. Too much space between the blades will cause a
ragged edge on the finished booklet.
Do not attempt to trim less than one-eighth of an
inch. On bulky or heavy sheets a wider trim is necessary.
Figure 38 shows the type strippers used for this work,
mounted on the square bar directly above the shafts. Note
that one is right, the other left, placed accordingly. It may
be necessary to bend the strippers slightly to avoid rubbing
on the cross carrier or stacker. Strippers are adjustable for
up and down movement.
Trimming a Strip from Center of Sheet
Figure 39 shows the setup for taking a quarter inch trim
out of the center of a sheet. Two or more trims may be made
as long as duplicate sets of cutters and strippers are used
and this setup adhered to.
A strip three sixteenths of an inch wide is the minimum
trim. This is the thickness of two of the cutting blades
placed together and attached to a blade holder collar. Blades
on the upper shaft, for all trims up to one-quarter inch, are
attached to one collar. If a strip wider than one-quarter of an
inch is to be cut, each blade is attached to an individual
collar and any desired width may be cut.
To remove the trim, place the appropriate center stripper
between two of the cutting blades, attached to a collar, as
shown in Figure 39A.
Figure 38
Figure 39
You will note that the holes in one side of the cutting
blades and blade holder collars are countersunk, so that flat
head screws can be used to mount blades on the lower shaft,
allowing clearance for the stripper which is placed between
them. This also allows the cut out strip to pass between the
lower blades without encountering screw heads.
Attaching blades to collars is very important and should
be done with care. The bevel of the cutting blades on the top
shaft should always be directed toward the strip to be
trimmed. The bevel of the blades on the lower shaft should
be directed away from the strip.
Before the cutting blades are tightened to the blade
holder collars, slide both the collar and attached blade on the
end of the shaft so that they are accurately aligned. Place
cutting blades on the upper shaft to the proper position
where the cut is to be made. Then place collars on the lower
shaft so that the flat sides of the blades are pressed snugly
together. Too much space between the blades will give a
ragged edge. Always examine blades for dullness and nicks
which will cause the same condition.
When blades are in the proper position, mount the
stripper as shown. Be sure the stripper does not touch the
sides of the cutting blades.
With this setup, the trimmed out section automatically
goes between the blades on the lower shaft, where it is
carried down and around and guided to the floor by the
stripper wire.