vc999 K7, Operating Manual, Page: 19 / 121

Vacuum Packaging Machine VC999 K7
Description of the machine
2008-11-26
Art.-No. 592.016 Page 19/121
3.2 Principle of operation
The product for packaging is put in a sealable plastic bag and fed in by conveyor belt from the work-
surface to the Vacuum Packaging Machine.
In the Vacuum Packaging Machine, the vacuum chamber lid lowers over the bag containing the product
for packaging and seals it with an airtight seal.
This produces a vacuum chamber. Unusually long bag parts which protrude from the vacuum chamber
are pre-perforated. The air is subsequently removed from the vacuum chamber and thus also from the
bag via the perforation. As soon as a preset vacuum has been achieved, the bag is sealed and the bag
waste in the vacuum chamber is either cut off by a cutter blade (VC999 K7A) or perforated by a perfora-
tion blade (VC999 K7B) outside the sealing zone.
When the vacuum chamber is then vented, the vacuum-pack bag clings closely to the product. The cut
off bag waste is automatically removed by the bag waste suction unit (VC999 K7A) when the vacuum
chamber is opened. If the Vacuum Packaging Machine is not equipped with a bag waste suction unit
(VC999 K7B), the perforated bag waste can be removed manually.
As vacuum generation and sealing of the bags take place, further bags can be placed on the conveyor
belt. This means that as the packed bags are ejected, new bags are being introduced into the machine
at the same time, so that the next packaging cycle can be started without any delay.
In order to make full use of the machine capabilities, the number of bags placed on the conveyor belt in
any one cycle should be the capacity between the markings (Fig. 3/1, pos. 2 and 4) on the work-
surface.