Textiles: fiber preparation – Working – Carding
Reexamination Certificate
1999-09-30
2001-05-08
Calvert, John J. (Department: 3741)
Textiles: fiber preparation
Working
Carding
C019S102000
Reexamination Certificate
active
06226837
ABSTRACT:
CROSS REFERENCE TO RELATED APPLICATION
This application claims the priority of German Application No. 198 44 790.6 filed Sep. 30, 1998, which is incorporated herein by reference.
BACKGROUND OF THE INVENTION
This invention relates to a driving device for a carding machine having a travelling flats assembly and a flat brush roller (flat cleaning device) operatively connected to the flat bars which are circulated by an endless drive element supported on two end sprockets.
In a known driving device the two drives, that is, the drive for one of the end sprockets and the drive for the flat brush are derived by belts from the motor-driven main carding cylinder drive. In such an arrangement a special gearing is provided which has two worm gears, a bevel gear and several deflecting rollers. It is a disadvantage of the outlined conventional driving device that for each maintenance work the toothed belt drive has to be released and subsequently re-tensioned and further, it involves substantial technological outlay.
SUMMARY OF THE INVENTION
It is an object of the invention to provide an improved driving device of the above-outlined type, from which the discussed disadvantages are eliminated, which is structurally simple and which makes a simplified maintenance possible.
This object and others to become apparent as the specification progresses, are accomplished by the invention, according to which, briefly stated, the carding machine includes a main carding cylinder, a travelling flats assembly having a plurality of flat bars provided with a clothing cooperating with the clothing of the main carding cylinder, an endless flat bar driving element trained about end sprockets and circulating the flat bars in an endless path, a flat cleaning device supported at a location above the flat bar driving element and including a rotatably supported flat brush roller. A gearing is provided which has an input shaft connected to a power drive, a first output shaft connected to one of the end sprockets for circulating the flat bar driving element and a second output shaft connected to the flat brush roller for rotating the same. The first and second output shafts have a constant distance from one another.
The invention provides for a significant structural simplification since, in particular, the toothed belt drive together with several deflecting rollers is dispensed with, whereby a more economical manufacture and assembly is achieved. It is a further advantage of the invention that for maintenance work the toothed belt no longer needs to be released and re-tensioned to a new, predetermined precise value. Apart from these, simplifications a substantial reduction of the maintenance times and thus an increase of the productive periods are achieved.
The invention has the following additional advantageous features:
The gearing is axially rotatable about the axis of one of the end sprockets of the traveling flats assembly.
The gearing is insertable on the shaft of the end sprocket.
The traveling flats move slowly, about 200 mm/min and the flat brush rotates with an rpm of about 4-8.
A drive motor is coupled to the input of the gearing which is accommodated in a housing which, in turn, is rotatable about the axis of the end sprocket.
The housing of the flat cleaning device and the drive housing of the traveling flats are combined into a single housing.
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Leder Armin
Mösges Helmut
Calvert John J.
Kelemen Gabor J.
Trutzschler GmbH & Co. KG
Venable
Welch Gary L.
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