Open-end spinning frame with a device for replacing full bobbins

Details Open-end spinning frame with a device for replacing full bobbins Open-end spinning frame with a device for replacing full bobbins

1977-05-19

1979-02-13

Gilreath, Stanley N.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

57263, 57270, B65H 5420, B65H 5426

Patent

active

041391624

ABSTRACT:
Bobbin exchange apparatus is provided for open-end spinning machines of the type having a plurality of spinning assemblies provided with respect to bobbin holders for holding bobbins to store thread. A depot device in the form of axially movable spring clamping jaws carried by a carrier rod extending along the length of the spinning machine is provided at each spinning assembly. To effect the ejection of a full bobbin from the bobbin holders and the insertion of an empty tube from the associated depot device, a mobile servicing device is provided which includes an empty tube engaging means for clampingly engaging an empty tube in the depot device and transferring the same to the bobbin holder with movement in a single plane. A bobbin holder opening device is provided at the servicing device which opens the bobbin holder to accommodate ejection of a full bobbin and insertion of an empty tube, with the bobbin holder only being opened when the empty tube engaging device is in a position on its travel path where it supports the full bobbin, so that ejection of the bobbin is supported by the same member which inserts the empty tube. Preferred embodiments include a gauge device for precisely positioning the clamping jaws at the depot devices so that the empty tubes are aligned and parallel with the bobbin holders at the respective machines to simplify the mechanical movements of the empty tube engaging jaws.

REFERENCES:
patent: 3092340 (1963-06-01), Furst
patent: 3640059 (1972-02-01), Lutovsky et al.
patent: 3791126 (1974-02-01), Kose et al.
patent: 3801030 (1974-04-01), Kobatake et al.
patent: 3811631 (1974-05-01), Mayer et al.
patent: 3820730 (1974-06-01), Endo et al.
patent: 3858385 (1975-01-01), Shinkai et al.
patent: 3940076 (1976-02-01), Kato et al.
patent: 3940077 (1976-02-01), Ohashi

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