Method of and device for suction transporting

B - Operations – Transporting – 65 – G

Patent

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Details

B65G 53/66 (2006.01) B08B 5/04 (2006.01) B65G 53/24 (2006.01) E02F 3/90 (2006.01)

Patent

CA 2257845

A transporting line (2) for suction transporting has an inlet (4), an outlet, and an interior (3) therebetween. Suction is applied to the transporting line (2) by a suction source (1) producing a suction force therein such that a material (6) is transported through the transporting line (2) from the inlet (4) to the outlet. The suction force is modulated with a modulator (7) by communicating the interior (3) with atmosphere through a passage (8) and periodically changing with a valve (10) an area and a shape of the passage (8) during the transporting, and also changing a frequency of the modulation in dependence on the distance between the inlet (4) of the transporting line (2) and an object surface (5) sensed by a sensor (15).

La présente invention concerne un tube de transport (2) pour transport par aspiration, pourvue d'un orifice d'entrée (4), d'un orifice de sortie et d'un intérieur (3) disposé entre les deux orifices. On applique une aspiration au tube de transport (2) à l'aide d'une source d'aspiration qui produit une force d'aspiration de sorte qu'un matériau (6) est transporté au travers dudit tube de transport (2), de l'orifice d'entrée à l'orifice de sortie. On module la force d'aspiration produite, à l'aide d'un modulateur (7), en mettant l'intérieur du tube de transport en communication avec l'atmosphère, par l'intermédiaire d'un passage (8), et en modifiant périodiquement, au moyen d'une soupape (10), une surface ou une forme du passage (8) pendant le transport, et en modifiant également une fréquence de modulation en fonction de la distance entre l'orifice d'entrée du tube de transport et une surface d'objet (5) détectée par un détecteur (15).

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