Continuous vertical form-fill-seal packaging machine with constant motion carriage
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United States of America Patent
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Jul 9, 1996
Grant Date -
N/A
app pub date -
Mar 11, 1994
filing date -
Mar 11, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved stripping and sealing operation in a form, fill and seal packaging system is provided. Stepper and servo motors are computer controlled including by a 3-axis coordinator operating the X and Y motion of the sealing jaws, as well as the Y' motion of the film/tube feed. The Y motion is provided by oscillatory driving movement of the carriage to move the stripper/sealing jaws in a substantially constant modified sine wave profile. The Y' motion is variable and tracks the carriage to precisely size and form the bag. Blousing is also provided by tube/carriage relative motion also induced by varying the film/tube feed.
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