Method and winding device for winding webs
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United States of America Patent
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Jun 17, 1997
Grant Date -
N/A
app pub date -
Apr 24, 1995
filing date -
Aug 24, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
In order to be able to manufacture large-caliber reels of high quality in a twin drum reel-up, the king rolls (11) and (12) have different diameters and are situated at different elevations. The main load of the reel is carried by the king roll (11), while the king roll (12) contacts the reel (13) with the smallest possible nip pressure which just suffices for transferring the torque difference required for generating the desired winding tension of the reel. The king roll (12) may be lowered as the diameter of the reel increases, namely depending on the fact if the winding shaft (13A) is displaced along a predetermined line of motion (14; 15), preferably a linear vertical or slightly tilted line of motion. An additional center drive which is made possible due to the aforementioned measures may additionally improve the winding result. A handling device (50) serves as a multifunction device for exchange of reels, in particular for the ejection of the reels, the clamping of the end of the web and the moving of the end of the web into the position for the next reel, as well as the separation of the finished reel from the web (1; 1', 1', . . . ).
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