| 摘要 |
The disclosure concerns a two-drum winder for the winding of an endlessly fed web. Two parallel carrier drums define a carrier drum bed in which a roll to be wound is supported. Upon completion of winding of a roll, the roll is lifted, a web cutting device presses the web against the raised wound roll, air is blown in the feed direction of the web for forming a loop of the web over the second carrier drum in the feed direction. Additional air is directed up between the carrier drums for assisting in the loop formation. A pressing roller on the cutting device presses the loop against the second carrier drum and continued rotation of the second carrier drum draws the looped web tight against a knife in the cutting device for cutting the web. The newly leading end of the web continues to be blown by the loop forming air flow which flattens the web. Then an air flow blows the newly cut leading end of the web counter to the web feed direction onto a new winding core supported in the carrier bed. Another pressing roll presses the web against the first carrier drum in the feed direction for preventing slipping of the web as the loop is formed and as the web is cut.
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