Labelling machine
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United States of America Patent
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Nov 18, 1997
Issued Date -
N/A
app pub date -
Apr 18, 1996
filing date -
Sep 19, 1994
priority date (Note) -
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status (Latency Note)
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Abstract
A roll-fed labelling machine that can be quickly changed to process containers and labels of different sizes does not require changed cutters to match different label sizes by engaging at least 50% of each label on the vacuum drum before it is cut from the web. Infeed guides and roll-on-pad assemblies, specific to individual container sizes can be installed swiftly by means of fixed alignment pins. The starwheel, having a diameter that is only five times the diameter of the mid-size container that the labelling machine is designed to process reduces abrasion and vibration. Starwheels that are aligned and with preset timing adjustment integral with the starwheel members for each container size are changed quickly to synchronize starwheel timing with that of the labelling machine. A glue applicator has a heater cartridge in the glue bar for warming the glue to a suitable range, while the glue roller has a circumference of not more than nine inches to control thermal losses and to reduce glue 'slinging' and glue 'stringing.'
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