Thread-up apparatus for a corrugator double backer
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United States of America Patent
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-
Apr 6, 1999
Grant Date -
N/A
app pub date -
Nov 11, 1997
filing date -
Nov 11, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A web thread-up apparatus for a beltless double backer includes a coiled flexible band positioned at the downstream end of the double backer on a reel from which the band may be unwound in the upstream direction through the double backer heating section. A clamping device on the free end of the band is utilized to capture the downstream edge of a new corrugated web positioned at the upstream entry to the double backer. Rotation of the reel is reversed to rewind the flexible band into the coil, carrying the web with it through the heating section of the double backer. A downstream web drive conveyor receives the lead edge of the new web which is detached from the rewound clamping device.
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