Method for producing corrugated board products having an oblique flute profile
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United States of America Patent
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Nov 5, 2019
Grant Date -
Sep 7, 2017
app pub date -
May 23, 2017
filing date -
Jul 5, 2012
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Abstract
The invention relates to a method and an apparatus for the production of a corrugated cardboard product. The apparatus comprises a first single facer and a second single facer which are provided in each case with a press-down belt and with a first and a second grooving roller respectively. The first and the second grooving roller are designed for embossing a wave profile onto a first and a second paper web respectively. The press-down belts, together with the respective grooving rollers, for connecting the first and the second paper webs in each case to a non-corrugated web for the production of a first and a second single-flute corrugated cardboard web respectively. The first single facer is equipped with a first oblique guide roller, the axis of rotation of which is inclined at a vertical inclination angle between side margins of the first paper web.
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