EuroWire March 2016

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March 2016 172
wire 2016 show
4-8 April
which are positioned around the rod
circumference and aggressively clean the
rod surface of secondary scale and red
rust, which are detrimental to producing
high quality wire products.
Unique to the Wilco wire-brushing
machine is the pressure of all wire brushes
being automatically maintained on a
real-time basis by the advanced electronic
control system.
The operator is not responsible for making
manual adjustments to the brush pressure;
therefore the brusher will produce a
consistently cleaned wire rod.
Additionally, when the wire brushes need
replacement (typically after processing
300 tons of wire rod) the control system
will shut down the Wilco brusher
while illuminating an indicator lamp
communicating the machine’s condition
and that the brushes need replacement.
Additional models of Wilco descaling
systems are available from basic,
non-aggressive systems to its full-featured
automatic brush descaling system with
lubricant pre-coating.
Wire Lab Company – USA
Website:
Witels-Albert
Stand: 09E39
Witels-Albert will be presenting both
new and eld-proven solutions from its
range of straightener, roll, guide, feed and
pre-former products.
Using ‘performance at its best’ as its
motto, the company will turn the spotlight
onto the new straighteners from the RT
and RTS series. Visitors can see the new
straightener products in action and nd
out how good they are.
Key factors determine the performance of
the new RT and RTS series straighteners.
New materials and new standard parts, the
multiple usage of single parts and a highly
developed assembly and production
represent the performance of the new
straighteners, which are available with
ve or seven individually adjustable
rolls. Each straightener is equipped with
straightening rolls in two rows. However,
two versions are o ered, using a di erent
number of straightening rolls dedicated
to the side of the straightener with the roll
adjustment screws.
By using di erent straightener versions a
perfect adaptation is possible, considering
the wire transport direction, the location
and the orientation plus the turning
direction of the spool respectively of
the coil. Bad straightening results by
lost bending operations are history,
whatever the turning direction of the coil
respectively of the spool.
The RT series straighteners do not have
a mechanism for quick opening/closing,
which is installed on the RTS series
straighteners.
Straighteners in the RTS series can be
opened and closed quickly and easily with
only a small amount of force.
The complete new mechanism for
opening and closing an RTS series
straightener is very robust and reliable
as it is protected against dust and dirt
deposits formed from, for example,
drawing soap and coating chips.
Driven by the intelligent design, RT series
straighteners can be converted into
straighteners of the RTS series by the user
at any time.
All the RT and RTS models cover a wire
size range between 0.1 and 9mm. In total
eight unit sizes are o ered. All models
are prepared for managing double-plane
straighteners using two straighteners and
a connecting bracket in between the units.
The connecting brackets can be
retro tted, which also supports the design
of customised straightening systems
consisting of three or four single plane
straighteners at any time.
As the connecting bracket design allows
the continuous adjustment of the angle
in between the units, straightening
chains can be manufactured and used for
straightening wire in di erent planes.
Witels-Albert GmbH – Germany
Website:
Woywod
Stand: 09A42
There are still cable manufacturers
preparing material mixtures by hand, and
the risk of wrong mixtures or separation
of material is very high. Reproducibility
cannot be guaranteed.
The rst real automation for the dosing
of materials in the cable manufacturing
industry was the implementation of the
“Wilson Color-O-Meters” (disc dosing
units), which were mounted on the main
material hoppers, reducing the human
factor.
The disadvantages of such systems were
the high maintenance, the comparatively
di cult handling, the risk of material
separation when having di erent material
densities (stirring devices had to be used),
as well as material spreading around the
equipment.
With the introduction of screw feeding
dosing units, the above systems were
replaced step by step. Screw feeding
dosing equipment was installed between
the main material hopper and the material
inlet of the extruder.
The separation of material was eliminated.
Changeover periods were reduced
drastically. Handling was improved and
the spreading of material around the
equipment was stopped.
Some of these systems are still being
used. In comparatively basic production
methods when the speed of the extruder
is not or very rarely changed (ramping)
and when the requirements to the quality
of the mixture are minimal, this way of
having a dosing unit synchronised to the
speed of the extruder is still common.
The speed (RPM) of the dosing unit is
synchronised with the speed of the
extruder (capacities are not synchronised).
However, the requirements to the product
properties have increased over the past
30 years and new products need highly
precise dosing solutions. As an example
cross-linked and foamed (chemical
foaming) products are to be mentioned.
▲ The 1250 automatic brush descaling system
▲ New range of straighteners
▲ Mixing stations fromWoywod