| 摘要 |
In order to provide a high-accuracy, easily adjustable airflow sorting device of simple configuration, the present invention is provided with: a conduit having a central axis along which objects to be sorted are allowed to descend by gravity therein; an air supply port through which air is blown upward along the central axis, the air supply port being provided to the lower part of the conduit; a suction port that is a downward-facing opening in a suction tube provided parallel to the central axis, the suction port being provided to a part of the conduit that is above the air supply port; and a charging port for charging the objects to be sorted into the conduit around the suction tube, the loading port being provided to a part of the conduit that is above the suction port. The sorting device, which sorts objects to be sorted depending on whether or not the objects are suctioned via the suction port together with some or all of an airstream produced within the conduit by an air current blown from the air supply port, is provided with an airflow adjuster that is provided in the lower part of the suction port within the conduit so as to obstruct the path of descent of the gravitationally descending objects to be sorted; and the airflow adjuster is configured so as to have a vertex on the central axis, to have an inclined surface configured so that the cross-sectional shape widens in an analogous manner progressively farther downward, and to cause the resistance acting on the gravitationally descending objects to be sorted to increase further downward from the suction port. |
