Significant savings in both time and money: for the Modulfill HES glass-bottle filler, Krones has now developed as an optional extra an automatic probe adjustment feature and a fully automated CIP cup mechanism. With this innovation for probe-controlled fillers used to fill glass bottles with beer and carbonated soft drinks, Krones is offering the market a unique solution. Depending on the size of the machine involved and the number of filling valves it has, there are substantial time savings when changing over to a different container.
One advantage of level-controlled fillers with integrated measuring probes is precise adjustment of the fill level in the bottle. When changing over to another container height, however, hitherto every single measuring probe in every valve had to be manually re-adjusted for the new container height using a kind of bayonet joint. Krones has developed a process in which a linear motor is used to change over all the valves simultaneously at the touch of a button, which means enormous time savings for the operators responsible.
CIP Cups in Readiness Position
As a consequence of this innovative feature, the probes can now be moved to a comparatively high position. This, in its turn, has freed up space at the valve outlet for automatically fitting the CIP cups. During production mode, the CIP cups are “parked” in a readiness position behind the valves. For cleaning-in-place mode, they are fed in fully automatically using a swivel mechanism and pressed against the valve. The CIP routine can now begin. Here, too, a lot of time is gained by eliminating manual insertion of the CIP cups at every single valve. For a filler with 100 valves, for instance, the time savings involved are around 60 per cent.
Probe Ensures Maximised Fill Quantity Precision
The Modulfill HES is in every respect a perfect choice for filling glass bottles with beer or carbonated soft drinks. Besides providing enhanced levels of hygiene and filling stability, it ensures particularly gentle, foam-free filling and assures accurate fill quantities. The glass bottle is pre-evacuated twice using an interposed CO2 flushing feature for minimised oxygen pick-up, creating a vacuum of less than 100 millibar. The filling function then starts. Two different speeds guarantee optimum flow behaviour. Diaphragm valve technology eliminates turbulence when switching over to a different speed. Swirl inserts in the valve ensure low-foam, low-turbulence filling.
When the inflowing liquid touches the probe attached to the filling tube, the valve will close. This measuring probe enables the fill quantity to be determined with maximised accuracy. Separate gas paths for pressurisation and snifting contribute towards high levels of hygiene and filling stability. All filling valve functions are electro-pneumatically controlled, which means the electronic short-tube level-controlled Modulfill HES filler ensures optimum machine performance for every product-container combination – now improved further by automating the measuring probe adjustment and CIP cup feed-in functions.