Air pressure glue application head

Dispensing – With discharge assistant – Fluid pressure

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Details

2394165, 239DIG19, B65D 8300

Patent

active

053560507

ABSTRACT:
A new apparatus for supplying discreet amounts of glue to sheets of paper positioned beneath glue heads is presented. The new glue nozzle consists of an essentially vertical chamber into which air pressure is introduced perpendicularly to the vertical alignment of the chamber. A glue needle is inserted down the center of the vertical chamber. Glue is supplied through the glue needle in droplets by applying pressure to the glue bottle. As a glue droplet accumulates at the bottom of the glue supply needle, a pulse of air is sent into the glue chamber and pushes the droplet off of the glue needle and onto the target. As the next sheet is moved into place underneath the glue needle, another droplet accumulates. When the droplet and sheet are aligned, a pulse of air blasts the droplet off the end of the needle onto the next sheet. Coordination of the accumulation of droplets, the pulse of the air, and the speed of the positioning of the target sheets allows an efficient method of depositing glue continually onto a large number of sheets.

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