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(11) | EP 2 664 572 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Yarn winding device and yarn winding method |
| (57) A winding unit (1) of an automatic winder includes a bobbin supporting section (3)
adapted to support a yarn supplying bobbin (8) in a replaceable manner; a yarn accumulating
device (22) adapted to wind a yarn (y) unwound from the yarn supplying bobbin (8)
to accumulate the yarn; a package forming device (4) adapted to wind the yarn (y)
unwound from the yarn accumulating device (22) to form a package (P) ; a yarn amount
detecting section (12) adapted to detect an amount of yarn left on the yarn supplying
bobbin (8); and a unit control section (5) adapted to predict an end of unwinding
of the yarn (y) of the yarn supplying bobbin (8) based on a detection result of the
yarn amount detecting section (12) and to decelerate a winding speed of the yarn accumulating
device (22) prior to the end of unwinding of the yarn (y).
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