Parts and Functions
Rovema VPK Operators Manual
3/2000 VPK REV(B) PANELVIEW 600
3-5
Film Carriage
Film Unwind Brake
The film unwind brake controls the unwinding of the film roll. It consists
of a brake drum that is attached to the film spindle and a brake pad
assembly that is actuated by the dancer assembly. As the dancer
assembly rises during bag forming, it moves the brake pad away from
the brake drum; allowing the film roll to unwind. When bag forming
stops, the dancer assembly lowers and press the brake pad against
the brake drum; stopping the film roll from unwinding.
Figure 3.4
Shows the film unwind brake.
Brake Drum
Brake Pad