Parts and Functions
Rovema VPK Operators Manual
3/2000 VPK REV(B) PANELVIEW 600
3-6
Film Carriage
Film Tracking Assembly
The film tracking assembly controls the position of the film carriage
relative to the forming collar; thus controlling the alignment of the
vertical seal. The assembly includes a DC drive motor and two limit
switches. The drive motor moves the upper and lower sections of the
film carriage towards either side of the forming collar. The limit switches
limit the movement of the film carriage to just a few inches.
You will make film tracking adjustments to align the edges of the film
tube (vertical seal). It is best if you make your adjustments while
jogging the film feeding device or while running the bagmaker in
automatic mode. This will allow the film web to slide across the guide
rollers and the forming collar with ease.
Figure 3.5
Shows the film tracking assembly. The limit switches are behind the motor.