Removal device for tube webs made of plastic film
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United States of America Patent
Stats
-
Mar 16, 2004
Grant Date -
Apr 25, 2002
app pub date -
Aug 13, 2001
filing date -
Aug 11, 2000
priority date (Note) -
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Abstract
A lay-flat removal device for a plastic tube film web with a lay-flat and squeezing device having lay-flat plates and squeezing rolls that are rotatable in a reversing manner around an axis of a supplied film tube. The removal device includes a first reversing, non-rotational pneumatic reversal rod and a first reversing, rotating deflection roll mechanically connected to one another in a first fixed transmission ratio to form a first functional pair which is driven by a first motor, and a second reversing, non-rotational pneumatic reversal rod and a second reversing, rotating deflection roll mechanically connected to one another in a second fixed transmission ratio to form a second functional pair driven by a second motor. The motors are controlled in such a way that the different functional pairs cover angles of rotation that can be determined in a variable manner.
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