Guide roller assembly for a vacuum sizing tank
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United States of America Patent
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-
Jul 8, 1997
Grant Date -
N/A
app pub date -
Aug 7, 1995
filing date -
Aug 7, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A guide roller assembly is provided for use with a vacuum sizing apparatus having an elongated vacuum cooling tank containing a water bath through which plastic extrudate passes longitudinally. The guide roller assembly has a plurality of guide rollers each individually mounted on its own roller axle. A roller assembly pivot shaft is removably and pivotally secured within the elongated vacuum tank and supports the axles of the respective guide rollers. The guide rollers may be pivotally rotated between a working position where the axles are horizontal and the guide rollers bear down upon the extrudate passing through the vacuum cooling tank and a nonworking position where the guide rollers are raised above the water surface of the vacuum cooling tank and to one side of the tank. The entire guide roller assembly may be removed from the vacuum tank by retracting the telescoping pivot shaft and removing the ends of the pivot shaft from recesses formed in the end walls of the vacuum cooling tank.
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