Height positioning mechanism for roll stand assembly on an apparatus for continuously forming an extruded sheet product
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United States of America Patent
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Aug 14, 2012
Grant Date -
Dec 2, 2010
app pub date -
Jun 1, 2009
filing date -
Jun 1, 2009
priority date (Note) -
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Abstract
An apparatus for continuously forming an extruded sheet product having an extruder assembly with a sheet die for delivering flowable material. A roll stand assembly has a main frame with first and second rolls. A vertical height positioning mechanism is operated to vary the relationship between the sheet die and nip location between rolls and has first and second lift components that cooperate with the main frame at first and second laterally spaced locations. The first and second lift components are each movable in first and second opposite paths to selectively elevate and lower the nip location relative to the sheet die. The vertical height positioning mechanism further has an actuating system to selectively and simultaneously cause the first and second lift components to move.
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