Method And Apparatus For Folding Or Separate Bags
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United States of America Patent
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N/A
Issued Date -
N/A
app pub date -
Dec 5, 2007
filing date -
Oct 31, 1997
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A folder and method for folding plastic bags includes at least one folding station. The folding station has a folding point where an input, an output and a storage portion meet. The bag travels in the input portion in a different direction than in the storage portion. The output direction is substantially the same as the input direction. A turning air source is disposed to direct the bag into the storage portion and an air source is disposed to direct the bag into the output section. A fin helps guide the bag into the output portion. A turning roll disposed above the turning point, and imparts motion to the bag, generally in the storage direction. A second folding station, similar to the first, is downstream the first folding station. The output direction for the first station is the same as the input direction for the second station, and the bag path between the first and second folding stations is substantially linear. A separator located upstream of the folder includes a separator nip formed by separator rolls that are in, and remain in, the film path in one embodiment. A slow-down section includes servo-driven slow down rolls with projections there on.
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