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16 <strong>LINK</strong> 55 . 2 /2010<br />
PRODUCT NEWS<br />
The new upgrade package<br />
for R 20 robots<br />
There is no room for compromises when it comes to yarn quality.<br />
The upgrade package for the R 20 robot maintains efficiency at a<br />
high level.<br />
Fig. 1 A total overhaul<br />
of the R 20 robot enhances<br />
efficiency and<br />
yarn quality.<br />
In economically difficult times it is especially important<br />
that the machines installed in the mill operate<br />
to a high technical standard. Production efficiency is<br />
ensured by regular servicing and the systematic replacement<br />
of wearing parts. This also prolongs the<br />
service life of the machines.<br />
Robots on older rotor spinning machines can be given<br />
a total overhaul in the Ingolstadt plant. Numerous<br />
robots from RU 14 / RU 14A and R1 rotor<br />
spinning machines have already been upgraded. The<br />
upgrade package for the R 20 robot has been available<br />
since the end of 2009.<br />
The R 20 robot is in operation daily, year after year.<br />
The severe stress this entails inevitably has an impact<br />
on the robot’s mechanical functions. An upgrade<br />
package for the R 20 robot offers more than<br />
just servicing and fine mechanical adjustment.<br />
The scope of the upgrade comprises numerous improvements<br />
that have been incorporated in the R 40<br />
series. These also include new developments. Following<br />
the upgrade of the R 20 robot, customers<br />
have a 6-month warranty on the entire robot.<br />
Modular upgrade – depending on the customer’s<br />
requirements<br />
The upgrade package for the R 20 robot is modular<br />
in structure. <strong>Rieter</strong> recommends installation of the<br />
complete upgrade package to enable all new functions<br />
to be utilized. Price-conscious customers can<br />
order only parts of the overall package. The upgrade<br />
package for the R 20 robot includes 9 new components.<br />
• <strong>Rieter</strong> LGPS laser-guided -guided positioning system<br />
The LGPS positions the robot accurately in relation<br />
to the spinning box by means of a laser beam and<br />
a reflector. Precise, smooth positioning of the robot<br />
makes the centering bars superfluous and the<br />
clutch of the travel motor is eliminated. This reduces<br />
downtimes and increases productivity.<br />
• EVO multivalve<br />
This precisely actuated vacuum system increases<br />
the operating reliability of the robot. Trailing<br />
threads at the air duct are eliminated.<br />
• M305 EVO piecing cylinder motor<br />
This high-quality motor has a long service life and<br />
features wear-free, digital speed monitoring which<br />
ensures constant rotation speed during piecing –<br />
a precondition for accurate piecing.<br />
• EVO hood opening unit<br />
The new hood opening unit improves the stability<br />
of the sequence of motion of the mechanical components<br />
and considerably prolongs service life. The<br />
compressed air supply for rotor cleaning is also improved<br />
by the pulsating delivery of compressed<br />
air and the new components. The new “Xclean”<br />
program actuates repeated cleaning of the rotor<br />
groove during acceleration, thus increasing piecing<br />
reliability and spinning quality.<br />
• Tailing unit<br />
A new, integrated clamping device reduces laps<br />
around the winder arms. Maintenance effort by operating<br />
personnel is reduced and package quality<br />
is improved.<br />
• IV thread accumulator<br />
A new sensor measures thread tension and thus<br />
defines the precise package mounting time during<br />
piecing and enhances robot efficiency.<br />
• Supply tube system<br />
The robot always carries an empty tube. This eliminates<br />
the time-consuming wait for an empty tube to<br />
be delivered prior to the change process. Package<br />
change is 20% faster.
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