Lateral sealing device of packaging machine
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United States of America Patent
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Feb 28, 2017
Grant Date -
Nov 15, 2012
app pub date -
May 11, 2012
filing date -
May 11, 2011
priority date (Note) -
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Abstract
In a lateral sealing mechanism, a cylindrical film is sandwiched and ultrasonic sealing is performed along a direction that intersects a conveying direction while a first horn and a first anvil, and a second horn and a second anvil rotate. The first horn is mounted on a first rotating body in a state of being coupled to a plurality of vibrating elements. The second horn is mounted on the second rotating body in a state coupled to a plurality of vibrating elements. A securing member grips a horn unit, which includes the horns and the plurality of vibrating elements, on the forward and rearward sides in the direction of rotation of the horn assembly in the vicinity of the node of ultrasonic vibration and secures the horn unit to the first rotating body and the second rotating body, respectively.
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