EP 0839220 B1 19990929 - YARN SCANNING PROCESS AND YARN UNWINDING SENSOR
Title (en)
YARN SCANNING PROCESS AND YARN UNWINDING SENSOR
Title (de)
VERFAHREN ZUM ABTASTEN EINES FADENS UND FADENABZUGSSENSOR
Title (fr)
PROCEDE DE DETECTION DE FIL ET CAPTEUR DE LEVEE DE FIL
Publication
Application
Priority
- DE 19526216 A 19950718
- EP 9603177 W 19960718
Abstract (en)
[origin: DE19526216A1] In a process for scanning yarn having a predetermined length and intermittently unwound from a yarn reserve wound (3) around the feeding drum (2) of a yarn-feeding device (F) for mechanical looms (L), a sensor (S) is used whose yarn (Y) pulse acceptance for at least one first yarn pulse changes when yarn speed increases and/or when at least one first winding signal is generated. A second yarn pulse acceptance for subsequent faster yarn pulses is thus obtained, as well as a non-acceptance of interference pulses that are slower than the second yarn pulses. A yarn unwinding sensor (S) suitable for carrying out this process is characterised in that it is provided with filtering means with two different selective filtering modes that differ by their acceptance of yarn pulses generated at different yarn unwinding speeds. The filtering means may be adjusted from a first filtering mode into at least another filtering mode when the yarn unwinding speed increases.
IPC 1-7
IPC 8 full level
D03D 47/36 (2006.01); B65H 51/22 (2006.01); D03D 47/34 (2006.01); D04B 15/48 (2006.01)
CPC (source: EP KR US)
D03D 47/34 (2013.01 - EP US); D03D 47/36 (2013.01 - KR); D03D 47/367 (2013.01 - EP US)
Designated contracting state (EPC)
BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
DE 19526216 A1 19970123; CN 1046564 C 19991117; CN 1191000 A 19980819; DE 59603237 D1 19991104; EP 0839220 A1 19980506; EP 0839220 B1 19990929; JP 2877961 B2 19990405; JP H10510598 A 19981013; KR 100268051 B1 20001016; KR 19990028681 A 19990415; US 6068028 A 20000530; WO 9704151 A1 19970206
DOCDB simple family (application)
DE 19526216 A 19950718; CN 96195577 A 19960718; DE 59603237 T 19960718; EP 9603177 W 19960718; EP 96927547 A 19960718; JP 50630097 A 19960718; KR 19970710004 A 19971231; US 98336598 A 19980518