Device and method for intermittently storing and returning yarn

Details Device and method for intermittently storing and returning yarn Device and method for intermittently storing and returning yarn

1988-03-18

1989-08-08

Gilreath, Stanley N.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 45, 242154, B65H 5442, B65H 5938

Patent

active

048545112

ABSTRACT:
A yarn storage and return device for yarn being wound on a conical bobbin driven at a constant speed. The device comprises a lever system for speed. The device comprises a lever system for storing and returning the yarn and for regulating and monitoring the amount of stored yarn. The yarn is drawn into the storage position by an arm of the lever system and is then released (i.e. returned) from this storage position. This returning operation releases the yarn from its storage position and replaces it (returns it) to its normal feed path. The device also comprises a transducer, and electric comparator, and an electric processor control unit to convert, compare and process an electrtic controlling signal to activate a drive source. The drive motor actuates a tensioning element which affects the storage operation of the device. The device further comprises a bidirectional drive unit to obtain a variation in the average yarn winding speed to restore the storage operation to a predetermined range of values.

REFERENCES:
patent: 2102109 (1937-12-01), Brueggemann
patent: 3300161 (1967-01-01), Hermanns
patent: 3640477 (1972-02-01), Furst
patent: 4002306 (1977-01-01), Raasch
patent: 4019691 (1980-04-01), Wroclaski et al.
patent: 4083506 (1978-04-01), Mander et al.
patent: 4113193 (1978-09-01), Raasch et al.
patent: 4120462 (1978-10-01), Raasch et al.
patent: 4133493 (1979-01-01), Schewe
patent: 4312482 (1982-01-01), Schewe

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