Textiles: spinning – twisting – and twining – Apparatus and processes – Package handling
Patent
1998-05-18
2000-03-21
Stryjewski, William
Textiles: spinning, twisting, and twining
Apparatus and processes
Package handling
267274, D01H 910
Patent
active
060388463
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to a roving machine with a device for the automatic replacement of full roving bobbins by empty roving sleeves and of the type in which bobbin carriers are arranged in two longitudinal rows on a bobbin rail and the device has a plurality of guide rails each of which is juxtaposable with one bobbin carrier and each of the two longitudinal rows and which extend substantially transversely to the longitudinal dimension of the machine.
BACKGROUND OF THE INVENTION
As state of the art, a roving frame with two flyer rows is already known (DE 195 02 586 A1) which is so conceived that the suspension carriage trains are movable transverse to the longitudinal direction of the roving frame in only every two flyers, and indeed into one flyer of the rear flyer row and a flyer of the front flyer row. Guide rails can be provided for this purpose which are either fixed or telescopable or have swingable segments.
A further state of the art is comprised of a device (DE 42 29 296 A1) by which a suspension carriage train on a guide rail running through the flyers is movable into the change position. For this purpose, below the heads of the flyers and/or under the flyer rail of the roving machine, specially formed guide members are arranged which form a guide rail from which a suspension carriage train is suspended along the longitudinal axis of the roving machine in transverse positions of the flyers.
It has been proposed furthermore in a roving machine to locate a guide rail along at least one of the rows of flyers in which a suspension carriage train can be fed into the machine. By lifting movements and lowering movements of the bobbin rail, the bobbins can be transferred from the bobbin rail onto the hangers of the suspension carriage train and sleeves from the hangers can be transferred to the bobbin rail. The bobbin rail and/or the guide rails can be shiftable back and forth. Fixedly arranged guide rails can be located on the underside of the flyer rail; movable guide rails are arranged in regions beneath the flyers.
OBJECT OF THE INVENTION
It is the object of the present invention to provide a simple device whereby the suspension carriage trains can be fed into and out of the guide rails.
SUMMARY OF THE INVENTION
These objects are achieved, in accordance with the invention in that the guide rails are arranged laterally of vertical planes containing the two bobbin carriers which are juxtaposed with the respective guide rail and the bobbin rail, laterally shiftable so that the vertical planes containing the bobbin carriers coincide with the vertical planes of the respective guide rail. Alternatively or in addition, the guide rail can be movable in a horizontal plane below the lower edges of the flyers. As a consequence, the advantage of a function oriented device can be obtained with automatic replacement of the full roving bobbins by empty roving sleeves, whereby the arrangement of the guide rails insures that the suspension carriage trains can be fed into and out of the flyer regions transverse to the longitudinal direction of a roving frame over the shortest paths and thus rapidly. Advantageously, the guide rails are arranged in a region above the bobbin rail between an underside of a respective flyer and a flyer rotation space. The guide rails can be arranged midway between vertical planes containing the two respective bobbin carriers.
The suspension carriage trains can be laterally flexible and the guide rails can be angled. Alternatively the suspension carriage trains can be displaceable in linear guide rails and can be formed as rigid bars. The guide rails can be configured as support rail segments above the bobbin rail and they can be swingable about horizontal axes above the bobbin rail. The suspension carriage trains can be shiftable collectively automatically by means of a push/pull device which can be pneumatic, hydraulic or electric and which can include a scissor-linkage system or a threaded spindle and spindle nut.
BRIEF DESCRIPTION OF THE DRAWING
The
REFERENCES:
patent: 3935699 (1976-02-01), Iida et al.
patent: 5671596 (1997-09-01), Mack et al.
patent: 5697205 (1997-12-01), Mack
patent: 5797255 (1998-08-01), Saito et al.
Dubno Herbert
Stryjewski William
Zinser Textilmaschinen GmbH
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