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Application
and the X20 I/O system are very
space-saving. even the drive for the
linear motor is surprisingly small,"
raves Brandt.
Control functionality is provided by
the control system of the upstream
packaging machine (the powerpakNt
or powerpakRt thermoformer). this
control and visualization solution is
based on the industrial pC ApC620
from B&R, and is used as a standard
throughout CFS machines. the architecture
of the thermoformer is set
up so that when the labeler is added,
the only change necessary is the addition
of a hub to the pOWeRLINK
network. If needed, the architecture
can even be further expanded to include
more labelers without requiring
any changes to the switching
cabinet of the packaging machine.
Simulation and code generation
with MATLAB ® /Simulink ®
the modern concept and technology
of the tiroLabelNt are matched by
the modern tools and processes used
by the CFS engineers to develop the
machine. "the control software for a
machine like the tiroLabelNt could
hardly be developed using traditional
processes - the movement
sequences are too complicated and
the management is too complex,"
explains Brandt. "that's why we used
mAtLAB ® /Simulink ® to develop the
mechanics, process sequences and
58 automotion 07/2009
Use of a servo motor prevents
unwanted loop formation and
band vibrations.
timing, as well as to generate the
control program." this guarantees,
for example, that the throughput
achieved through simulation is also
achieved in reality. the CFS expert is
enthusiastic about the advantages for
the user: "the operator can directly
enter the desired number of cycles
for a certain packaging format, and
receives immediate feedback indicating
whether or not it can be achieved.
If it can, the controller automatically
sets all the parameters accordingly.
the previous method of gradually
working up to the desired number
of cycles is now obsolete." this also
prevents damage to the mechanics
and increases positioning precision,
since each applicator unit only works
at the speed necessary to achieve the
specified number of cycles.
All in all, using the new labeling system
instead of a conventional solution
means higher processing capacity
and more precision with a smaller
footprint. What is more, the label reel
can be inserted outside the safety
covers, the machine is easier to clean
due to the integration of the applicator
unit in the cleaning process, and
reel exchange is much more ergonomic.
CFS:
Founded: 1997 (Management buyout
of the Convenience Food Division
of tetra Laval)
Employees: 2,200
Locations: more than 60 worldwide
Products & Services: Worldwide
leading supplier of machines for
the foodstuffs industry; from the
preparation of the products to the
packaging process, including the
required packaging materials
www.cfs.com