Textiles: spinning – twisting – and twining – Apparatus and processes – Package handling
Patent
1998-03-02
1999-10-26
Stryjewski, William
Textiles: spinning, twisting, and twining
Apparatus and processes
Package handling
57 90, 57267, 57270, D01H 910
Patent
active
059706996
DESCRIPTION:
BRIEF SUMMARY
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a national stage of PCT/DE97/01486 filed Jul. 8, 1997 and is based, in turn, on German national application 196 31 445.3 of Aug. 3, 1996.
1. Field of the Invention
The invention relates to a roving machine with at least one row of flyers journaled on a flyer rail and with a device for the automatic replacement of full roving bobbins by empty roving sleeves in the form of a suspension trolley carriage with hangers that is displaced on guide means and on which the roving bobbins and roving tubes can be hung by a relative vertical movement between the roving bobbins and the suspension trolley train.
2. Background of the Invention
A bobbin replacement system is known from DE 42 29 296 A. The arrangement of the guide tracks within the flyers means that the guide track must be subdivided into short segments corresponding to the spacing of the flyers and which must be swingable so that they can be brought outside of the rotary paths of the flyers during the operation thereof. This calls for expensive construction. After the roving machine is brought to standstill and before it is turned on again, these segments must form the guide track and be separated again before the suspension trolley carriage can be fed into the flyers and before the roving machine can be turned on again. This requires waiting times and increases the standstill period of the roving machine.
OBJECT OF THE INVENTION
The invention has as its object a simpler arrangement of the guide tracks.
SUMMARY OF THE INVENTION
In one aspect of the invention the guide tracks preferably are arranged on the underside of the flyer rail. This has the advantage that the guide tracks can be fixedly arranged. However, this arrangement requires taking up the roving bobbins or roving tubes in the bobbin rail of the roving machine by the guide rails which are arranged between the rows of flyers and bringing them into a common vertical plane. It is customary to provide the bobbin rail so that it is movable by a corresponding stretch. It is however also possible to form the flyer rail or both units so that they are shiftable.
The embodiment according to claim 4 has the advantage both the guide track and also the flyer rail can be fixedly arranged and the bobbin rail need not be shiftable back and forth. For this however, the guide track must be movable.
The guide tracks can be shiftable linearly out of the machine stand. They can however also be shiftable along the longitudinal axis of the roving machine, whereby with two guide tracks one axis lies along the axis of the machine stand while the other lies at the front side of the roving machine.
In all cases with roving machines equipped with two rows of flyers, one of the guide tracks lies between the flyer rows while the other lies ahead or behind the flyer rows with reference to the front side of the machine. Correspondingly the bobbin rail or the guide tracks upon bobbin replacement must be shiftable forwardly or rearwardly.
The shifting of the bobbin rails can be effected by mounting the bobbin rails so that they are guided horizontally on traverses which can be movable up and down to raise and lower the bobbin rail during the building of the bobbins and on which the bobbin rail can be shiftable forwardly and back. Because the rotary drive is transmitted to the bobbin carriers in the bobbin rail in all cases without articulated shafts, the additional mobility of the bobbin rail does not pose any structural problems.
The bobbins in all cases are driven by spindles which are arranged on the bobbin rail as bobbin spindles. In the embodiment with the guide tracks fed from below the flyers it is advantageous to bring the spindles into the flyers, i.e. to form them as flyer spindles. This can provide a saving in the height of the construction.
BRIEF DESCRIPTION OF THE DRAWING
The above and other objects, features, and advantages will become more readily apparent from the following description, reference being made to the accompanying drawing in which:
REFERENCES:
patent: 4934132 (1990-06-01), Marzoli
patent: 5222350 (1993-06-01), Bowman et al.
patent: 5375405 (1994-12-01), Weeger
patent: 5522210 (1996-06-01), Mack
patent: 5697205 (1997-12-01), Mack
patent: 5797255 (1998-08-01), Saito et al.
Grassle Herbert
Weeger Hans-Peter
Dubno Herbert
Silverio Gina
Stryjewski William
Zinser Textilmaschinen GmbH
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