D1-S2-P2-A-Rheologically-optimized
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Line speed (m/min)<br />
02.06.2017<br />
6) Dancer controller:<br />
Unit with adjustable load<br />
5<br />
4<br />
6<br />
3<br />
2<br />
1 Counterweight<br />
2 Lifting cylinder<br />
3 Rolling diaphragm<br />
cylinder<br />
4 Toothed rack<br />
5 Swivel arm<br />
6 Dancer roller<br />
KR0I51VS<br />
1<br />
Without rubber the dancer controller should be balanced<br />
by the counterweight.<br />
The recipe based dancer load with profile is given by the<br />
rolling diaphragm cylinder and should be as low as<br />
possible to avoid stretching.<br />
© Harburg-Freudenberger Maschinenbau GmbH<br />
All rights reserved<br />
Dr. Gerard Nijman: Relaxed Extrusion 27<br />
June 16, 2017<br />
The result: Extrusion line speed study with<br />
relaxed extrusion conditions<br />
30<br />
25<br />
20<br />
15<br />
10<br />
5<br />
Relaxed<br />
extrusion<br />
Pulled extrusion<br />
0<br />
The cooling line is<br />
between incline and<br />
decline conveyor<br />
After-shrinkage of treads<br />
(silica) from leaf-trucks:<br />
-Pulled extrusion: > 10 mm<br />
-Relaxed extrusion: < 2 mm<br />
© Harburg-Freudenberger Maschinenbau GmbH<br />
All rights reserved<br />
Dr. Gerard Nijman: Relaxed Extrusion<br />
June 16, 2017<br />
28<br />
14
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