Winding – tensioning – or guiding – Helical or random winding of material – Joining ends of material
Patent
1997-12-04
1999-09-14
Mansen, Michael R.
Winding, tensioning, or guiding
Helical or random winding of material
Joining ends of material
2424751, B65H 5402
Patent
active
059509570
ABSTRACT:
A winding unit 2 of an automatic bobbin winder includes a suction nozzle 12 for aspirating from the surface 48 of a take-up bobbin 11 an upper yarn end portion 34 after a yarn break for subsequent placement into a splicing device 13. The suction nozzle 12 has a sensor device 35 for detecting the presence of the aspirated upper yarn and the sensor device is connected to winding unit computer 39. The suction device is connected via a cam transmission 27, 29 to a reversible drive 25 which can be driven by winding-unit computer 39 to cause the mouth 38 of the suction nozzle to execute reciprocatory pitching movements V, Z to assist the nozzle in properly aspirating the upper yarn.
REFERENCES:
patent: 3918651 (1975-11-01), Uchida
patent: 4986482 (1991-01-01), Okayama
patent: 5082194 (1992-01-01), Grecksch et al.
patent: 5426929 (1995-06-01), Schwalm et al.
patent: 5605296 (1997-02-01), Haasen et al.
Mansen Michael R.
W. Schlafhorst AG & Co.
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