Equipment and method for the forming of paper containers
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United States of America Patent
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Apr 21, 2015
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N/A
app pub date -
Oct 7, 2009
filing date -
Oct 16, 2008
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Abstract
The invention concerns the equipment for forming of paper containers starting from a continuous wet paper belt. It comprises a mobile semi-mold and a fixed semi-mold defining an impression corresponding to the container to be produced. Around the mobile semi-mold (15) are provided concentrically an upper cutting blade (18), an upper pleating/crimping ring (19) and an upper rim former (20); around the fixed semi-mold (14) are provided a counter cutting blade (21), an upper counter pleating/crimping ring (22) and a counter rim former (23), associated respectively with the cutting blade, the pleating/crimping ring and rim former on board associated with a mobile semi-mold. And this, respectively, to cut from the initial paper tape a length of paper depending on the measurements of the container to be formed, to pleat/crimp a peripheral crown of said blank paper during the closing stroke of the semi-molds, and to form a crimped rim around the lateral wall of the container during the opening stroke of said semi-molds.
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