EP 0699614 B1 19981209 - Method and device for monitoring the unwinding of a bobbin
Title (en)
Method and device for monitoring the unwinding of a bobbin
Title (de)
Verfahren und Vorrichtung zum Überwachen des Abwickelns einer Spule
Title (fr)
Procédé et dispositif de contrÔle du déroulement d'une bobine
Publication
Application
Priority
FR 9410425 A 19940830
Abstract (en)
[origin: EP0699614A1] The method involves a sensor (18,20) to registers an acoustic signal of the unwinding action. A signal processing assembly (22,24,26) processes the periodic sensor signal to give at least the unwinding frequency of the bobbin (10) coils. The acoustic signal is registered across the bobbin axis, at one end of the unwinding bobbin. The acoustic signal is processed continuously to give the rate of change as a function of time. The data gives the unwinding coil frequency, the number of coils unwound, the unwinding speed, the number of yarn (14) layers unwound from the bobbin (10) and the relative displacement speed of two units through the yarn (14).
IPC 1-7
IPC 8 full level
B65H 61/00 (2006.01); F41F 3/055 (2006.01); F42B 15/04 (2006.01)
CPC (source: EP)
B65H 61/005 (2013.01); F41F 3/055 (2013.01); F42B 15/04 (2013.01)
Designated contracting state (EPC)
BE CH DE ES GB GR IT LI NL PT SE
DOCDB simple family (publication)
EP 0699614 A1 19960306; EP 0699614 B1 19981209; DE 69506498 D1 19990121; DE 69506498 T2 19990930; ES 2126849 T3 19990401; FR 2724014 A1 19960301; FR 2724014 B1 19970214
DOCDB simple family (application)
EP 95401965 A 19950828; DE 69506498 T 19950828; ES 95401965 T 19950828; FR 9410425 A 19940830