Global Patent Index - EP 1048769 A2

EP 1048769 A2 2000-11-02 - Process for starting a loom with electromotive main drive

Title (en)

Process for starting a loom with electromotive main drive

Title (de)

Verfahren zum Anwerfen von mit einem elektromotorischen Hauptantrieb ausgerüsteten Webmaschinen

Title (fr)

Procédé de mise en marche d'un métier à tisser pourvu d'un entraînement principal à électro-moteur

Publication

EP 1048769 A2 (DE)

Application

EP 00102516 A

Priority

DE 19914131 A

Abstract (en)

[origin: DE19914131A1] The electric motor drive (1) to a weaving machine is through a flywheel (3) and clutch (4), with the nominal starting speed of the motor higher than the running speed to take account of machine inertia and give the required acceleration. The machine speed is measured (6) and stored and in subsequent start-ups the nominal motor and flywheel speed is modified to give the correct acceleration.

Abstract (de)

Die Erfindung betrifft ein Verfahren zum Anwerfen von mit einem elektromotorischen Hauptantrieb ausgerüsteten Webmaschinen, wobei wenigstens eine Schwungmasse vom Hauptantriebsmotor angetrieben wird, die über eine Kupplung an die Webmaschinenhauptwelle kuppelbar ist, und zum Anwerfen der Webmaschine der Hauptantriebsmotor und die Schwungmasse auf eine vorgegebene, gegenüber ihrer Nenndrehzahl höhere Startdrehzahl gebracht wird, und bei Erreichen der vorgegebenen Startdrehzahl die Schwungmasse an die Webmaschinenhauptwelle gekuppelt wird. Gemäß der Erfindung soll die erforderliche Startdrehzahl automatisch ermittelt werden. Erfindungsgemäß wird dies dadurch erreicht, dass die Drehzahl der Webmaschinenhauptwelle mindestens beim ersten Blattanschlag gemessen und die Abweichung der gemessenen Drehzahl von der Nenndrehzahl ermittelt wird, wobei in der Webmaschinensteuerung ein Auswerten und Abspeichern der Messwerte erfolgt und eine Startdrehzahl für den Anwerfvorgang auf Grundlage der ermittelten Messwerte berechnet wird, derart, dass bei einem erneuten Start der Webmaschine mindestens die Nenndrehzahl beim ersten Blattanschlag erreicht wird.

IPC 1-7 (main, further and additional classification)

D03D 51/00

IPC 8 full level (invention and additional information)

D03D 51/00 (2006.01); D03D 51/02 (2006.01); D03D 51/12 (2006.01)

CPC (invention and additional information)

D03D 51/12 (2013.01); D03D 51/002 (2013.01); D03D 51/007 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

DE 19914131 A1 20001005; AT 256776 T 20040115; EP 1048769 A2 20001102; EP 1048769 A3 20010822; EP 1048769 B1 20031217; ES 2211388 T3 20040716; JP 2000282350 A 20001010; PT 1048769 E 20040430; US 6307340 B1 20011023

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