Drawing frame with aprons entwined around twin output top delivery rollers

The invention relates to a drafting device with twin top front rollers surrounded by aprons in which the aprons are guided around deflection members arranged above the area facing away from the clamping surface of the front roller pair. In order to achieve a low-friction, brake-free and low-wear run...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Artzt, Peter, Grün, Theo, Ausheyks, Larisa, Krawietz, Stefan
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention relates to a drafting device with twin top front rollers surrounded by aprons in which the aprons are guided around deflection members arranged above the area facing away from the clamping surface of the front roller pair. In order to achieve a low-friction, brake-free and low-wear running of the aprons, they are guided with only a slight tension around the deflection members. For this, the tendency of the aprons to assume a circular form in the circumferential direction is utilized. This tendency brings about, with the appropriately selected interval between the top front rollers and between the surfaces of the deflection members, the low contact pressure on the surfaces striven for and the low tractive tension in the aprons striven for.