Device and method for storing and returning yarn during the wind

Details Device and method for storing and returning yarn during the wind Device and method for storing and returning yarn during the wind

1988-03-18

1989-08-08

Gilreath, Stanley N.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 45, 242150R, 242154, B65H 5442, B65H 5922, B65H 5938

Patent

active

048545104

ABSTRACT:
A device and method for winding conical bobbins with yarn withdrawn at constant speed from individual spinning units, and comprising: a deflecting roller, which moves backwards and forwards by a swinging arm, which compensates for the different speeds at which the yarn is collected on the bobbin under formation wherein yarn is drawn into the storage position and is then released from this storage position, (i.e. returned). This returning operation releases the yarn from its storage position and replaces it (returns it), to its normal feed path; two proximity sensors which defines the range of swing of the yarn storage and return arm; an electronic control unit which receives an electrical signal from the proximity sensors when the arm swings stray outside the regular range to generate, an electrical control signal which activates a pressure variator which varies the pressure on a disc yarn tensioner. This changes the tension on the yarn to return the storage swing to within the regular range. If irregular swing persists, a bidirectional drive is activated to displace the contact between the bobbin and drive roller to restore the storage swing to within the regular range of values.

REFERENCES:
patent: 2102109 (1937-12-01), Brueggemann
patent: 3047247 (1962-07-01), Kotte
patent: 3231216 (1966-01-01), Lemarchand
patent: 3300161 (1967-01-01), Hermanns
patent: 4019691 (1977-04-01), Wroclawski et al.
patent: 4120462 (1978-10-01), Raasch et al.

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