Vertical sealing device for vertical type forming, filling and closing machine for flexible packages
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United States of America Patent
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Apr 30, 2002
Grant Date -
N/A
app pub date -
Nov 12, 1999
filing date -
Dec 16, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vertical sealing device for a packing machine includes a pair of feed units for feeding a cylindrical-formed packaging material and a center heat sealer for the heat-sealing of a vertical seam of the packaging material. When the operation of the machine is halted, the feed units feed the packaging material from a steady speed mode to a deceleration mode. During this deceleration mode, the operation of the center heat sealer is stopped. On the other hand, when the operation of the packing machine is restarted, the feed units feed the packaging material in an acceleration mode, and during this acceleration mode, the center heat sealer starts operating.
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