Method and structure for separating the web material in a winding machine
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United States of America Patent
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-
Mar 17, 2015
Grant Date -
Dec 22, 2011
app pub date -
Aug 31, 2011
filing date -
Jul 27, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A winding machine includes an upper winding roller and a separation mechanism arranged at a location close to and below the upper winding roller. The separation mechanism includes a pivot shaft having an outer circumferential surface and at least one pinch arm having a connecting end coupled to the outer circumferential surface of the pivot shaft and a web engagement end extending outward from the outer circumferential surface of the pivot shaft. When the pinch arm is driven by a driving mechanism to rotate the web engagement end of the pinch arm to an engagement position where the web engagement end opposes the upper winding roller, the web engagement end of the pinch arm sucks and holds or guides a web material passing therethrough, whereby the web material is subjected to a pulling force induced by a roll of paper formed in a winding nip to tear and thus separate.
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