FISCHBEIN
®
Co. MODEL PBC-6000™
OPERATOR’S MANUAL
REV. D 2005-03
17
These belts must be set to run at the same linear rate as the conveyor system. If the timing between
the two systems does not match, the bag will be tilted forward or backward and will not completely
seal the bag. Use a hand-held tachometer set for measuring feet per minute or meters per minute
and check the linear speeds of the two systems. The PBC 6000 can easily be adjusted by turning
the “Speed” dial on the electrical control panel. (
Illustration 6.7
) Always remember to adjust the
speed of the PBC, when the line speed changes.
The internal synchronizing of the PBC is between the rear (fixed channel) and front (swing
channel) belts. The drive system within the two channels is synchronized by two large spur gears,
beneath the drive gear motor. (
Illustration 6.8
) A pulley drives the carry through belts at the end
of the drive shafts on the underside of the machine. If the belts are loose, they may slip while
passing over the drive
pulleys and skew the bag
top as a result. Make sure
the belts are tight before
operating or synchronizing
the machine. To tighten the
carry through belts, refer to
Section 8.5.1, page 28
.
Although the compression
belts must also be
synchronized, it is not
likely that they will be
different since they are
toothed timing belts, turned
by timing sprockets.
However, if they become
loose, refer to
Section
8.5.2, page 30
, to adjust
and tighten them.
6.6 FOLDER
Check the folder assembly to ensure that it is not loose and remove any glue build up on the edges.
The bag must be able to flow through the folder without catching on edges or glue remnants. If the
bag thickness is being changed, run test bags through the machine first to ensure that the folder is
set properly to make a complete, even seal. The folder should not have to be adjusted for most
common bag types and thicknesses. If minor adjustments are required, refer to
Section 8.7, page
49
.
6.7 COMPRESSION BELTS AND ROLLERS
Check the compression belts for gouges and glue buildup. Carefully remove the glue with a dull
edged tool. The belt should be tight on the rollers and wheels. Where the two compression belts
come together, they should just be touching. If they are coming together with too much or too
little force, the seal on the bag could be wrinkled or not completely sealed. To adjust the
compression section of the machine, refer to
Sections 8.5.2 - 8.5.4, pages 30-39
.
Illustration 6.8
Содержание PBC-6000
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