Textiles: spinning – twisting – and twining – Apparatus and processes – Delivery twist type
Patent
1975-09-29
1977-05-17
Petrakes, John
Textiles: spinning, twisting, and twining
Apparatus and processes
Delivery twist type
57102, 57156, D01H 908
Patent
active
040233383
ABSTRACT:
This invention is applicable for carrying out the doffing operation of several types of fly frames such as a fly frame provided with an upper rail having a plurality of flyers in suspended condition and a mechanism for driving these flyers therein, and a fly frame provided with a spindle rail and a bobbin rail disposed at a position above the spindle rail in such a condition that the bobbin rail can be displaced vertically during the building motion. According to the doffing method of the present invention, when it is required to carry out the doffing operation, the bobbins containing a full yarn package are relatively displaced to a position free from the corresponding flyers and the engagement of the bobbins with the corresponding bobbin driving mechanisms is released. Next the bobbins containing a full yarn package are carried toward a longitudinal end of the fly frame in a space above the arrangement of the bobbin driving mechanisms. In the preferable embodiment of the present invention, the carrying passage of the bobbin coincides with an alignment of the axial centers of the flyers arranged in the longitudinal direction of the fly frame. A chain conveyer is preferably used for carrying the bobbins. When the bobbin are carried to a longitudinal end of the fly frame, they are discharged from the fly frame. A fresh bobbin supplying device for supplying bobbins to the chain conveyer can be satisfactorily used.
REFERENCES:
patent: 2819580 (1958-01-01), Teupel
patent: 3380238 (1968-04-01), Araki et al.
patent: 3398519 (1968-08-01), Haussmann
patent: 3681905 (1972-08-01), Furtmeier et al.
patent: 3791125 (1974-02-01), Kawakami
patent: 3935699 (1976-02-01), Iida et al.
patent: 3935821 (1976-02-01), Maier et al.
Araki Hidejiro
Mori Mitsuo
Morishita Toshio
Nakane Katumi
Tooka Takuzo
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
Petrakes John
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