Particle sorting device

Abstract

Provided is a particle sorting device which can properly enable particles that should be separated to be separated from other particle groups even if the pressure of air supplied to an air ejecting mechanism is reduced. The device is provided with a transportation mechanism which enables a particle group to pass through a measuring object part in a one-layer state and in a transversely spreading state of spreading in a transverse direction, a light reception mechanism which receives light from the measuring object mechanism, a lighting mechanism which illuminates the measuring object part, an evaluation processing mechanism which judges whether a particle to be regarded as an objected to be separated based on whether the value of the amount of received light deviates from a proper range of the amount of light, and an air ejection mechanism which enables the particle that is judged to be regarded as an object to be separated to be separated. The transportation mechanism freely alters and adjusts transportation flow of the particle group to constitute action of controlling the transportation mechanism, enabling the transportation flow when the detected pressure detected by a pressure detection mechanism which detects the pressure of air supplied to the air ejecting mechanism from an air supply source is relatively low to be smaller than when the detected pressure is relatively high.

Description

technical field [0001] The present invention relates to a granular body sorting device, which is provided with a transfer mechanism for transferring a group of granular bodies in a horizontally expanded state in a single layer state and spread in a lateral width direction so as to pass through a site to be measured The light-receiving mechanism is provided with a plurality of unit light-receiving parts that receive light from the above-mentioned measurement object part in a state corresponding to each part divided along the lateral width direction of the above-mentioned measurement object part; full-width or substantially full-width illumination in the lateral width direction; the evaluation processing mechanism executes according to the above-mentioned plurality of unit light-receiving parts, and judges whether it is a granular body to be separated according to whether the light quantity value received by the above-mentioned unit light-receiving part deviates from the appropri...

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Problems solved by technology

[0010] And, after finishing the trial operation and starting the original operation, if, for example, the air pressure of the air supplied from the air supply source to the air ejection mechanism is insufficient due to malfunction of the air supply source, etc., the air from the air ejection mechanism The ejection speed or ejection volume of the ejected air is insufficient, and the separation process can no longer be performed well. However, in the past, even if the air pressure supplied to the air ejection mechanism was insufficient, the operation was only continued, so it may not be possible. Faults that are well separated

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