omnidirectional, static or in fast motion,
or inverse or mirrored. The DCR 200i is
a small, camera-based 1D and 2D code
reader. Thanks to its simple and intuitive
operation and configuration, the product
can be integrated in different applications
extremely quickly.
“We presented Tyre-Line with a number of
layout, solution and kit suggestions that
would meet the demands of inflating such a
wide range of assemblies, including tyres for
high-value alloys,” says Brad North, Director
of Autarky. “Among the principal challenges
was how we would go about reading the
barcode on each wheel and tyre assembly.
Capturing the barcode information would
tell the Hofmann machine which assembly
was approaching and hence what inflation
pressure would be required.”
Each wheel and tyre assembly features a
paper, low-tack adhesive barcode label.
However, Tyre-Line did not want to be
restricted by having to place the label
in exactly the same position on every
assembly, as this would take time and
precision. Instead, Tyre-Line tasked Autarky
with devising a solution that could read
the barcode in any location, and with the
assembly at any position across the width of
the conveyor. To resolve this issue, Autarky
turned to Leuze electronic, the sensor
people.
“Having discussed the application with Leuze
experts, we opted for their DCR 200i 2D code
reader,” explains Mr North. “We acquired
three and mounted them on a loop array at
the optimum angle and height so that the
barcode could be captured at any position
on the assembly and conveyor. Linked to the
existing PROFINET communications network,
the Leuze DCR 200i 2D code readers capture
data from the barcode that is subsequently
relayed to the Hofmann machine.”
The project took some 18 weeks to
complete, with the barcode capture process
described by Mr North as one of its most
challenging aspects.
“If it was a tray, for example, which is a
prismatic shape so would likely feature a
barcode that is always in the same position,
it would be easy,” he says. “However, a round
object that looks the same whichever way
it is positioned makes for a real challenge.
And yet it is one that had to be overcome
as Tyre-Line can be faced with processing
assemblies for high-performance cars, taxis
and caravans, all at the same time. Correctly
assembly identification is vital to the line’s
success as it determines the right inflation
pressure, which is why selecting the best
code reader was absolutely imperative.”
Autarky is no stranger to Leuze solutions;
the company has used hundreds of the
company’s standard barcode readers and
photoelectric sensors.
“We have a solid working relationship with
Leuze and always receive good service,
which is what made it such a straightforward
decision for us,” says Mr North.
Leuze code readers capture 1D and 2D codes
without fail, be they printed, directly marked,
The DCR 200i can be configured either via
a web-based software tool with simple
installation wizard and menu selection,
or directly on the device. Additionally,
configuration via configuration codes can
be carried out via smartphone app. Optics
models are available for larger operating
ranges or miniature codes. For fieldbus
integration, standard interfaces such as
PROFINET or Ethernet TCP/IP are provided.
The stainless steel housing model with
IP69K/IP67 rated protection helps ensure
resistance against cleaning agents during
washdown processes.
Concludes Mr North: “At Tyre-Line, the
Leuze 2D code readers work all day, every
day, helping the company achieve far
higher throughput rates than previously.
Today, a wheel and tyre assembly passes
through the inflation machine every 7
seconds. Aside from pure speed, Tyre-Line
is also enjoying a boost in inflation accuracy
and repeatability, as the automated system
has eliminated any potential for human
error.”
A video of the automated conveyor
application at Tyre-Line can be
viewed at https://www.youtube.com/
watch?v=ktwEvZqprKM
www.smart-sensor-business.com
Issue 42 PECM
45