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3.5.2 Confirmation station
The confirmation station is situated in the loading area, It is an optional device which is
specially developed to support the formed packages during filling.(see figure
3.10).
The confirmation station can be (de)activated in menu option 2.
The unit consists of a lifting device (on which a synthetic box is placed with the same forming
index as mounted in the forming station), a vacuum pump and a vacuum valve combined
with ventilation valve.
After each film advance the air cylinder brings the confirmation box to its upper position. A
sensor mounted on the cylinder opens the vacuum valve to create a vacuum in the box. As a
result of this the empty packages, already formed in the forming station, will stay in their final
form making it easier to fill the packages with products. After the forming station lifting
system lowers, the confirmation station will stop its cycle; the vacuum valve will close, the
ventilation valve will open and the box goes to its lower position.
3.5.3 Loading mask
The loading section can also be provided with a loading mask (see fig 3.11). This mask
avoids moisture on the sealing area around the formed packages, providing a much better
seal when a very wet product is to be packed.
This loading mask can be equipped with an automatic lifting system to lift the mask during
film advance. In this way the loading mask will reach closer to the bottom film during filling.
During transport an air actuated membrane lifts the loading mask via four pins by about
20mm.
Figure 3.10 Confirmation station
Box with cavities
Air cylinder
Lifting device
Vacuum / ventilation
valves
Vacuum pump