Variable-gap roll shaft fruit and vegetable classifier

Abstract

The invention discloses a variable-gap roll shaft fruit and vegetable classifier; a driving chain wheel drives a driven chain wheel to rotate by a chain which is evenly distributed with sorting rollers; a plane classification bed is formed by a roll surface of the sorting roller on an upper layer chain, and a plane belt-type conveyor is positioned under the plane classification bed; at the two ends of each sorting roller shaft, a pushing roller wheel is positioned on the sorting roller shaft at the outer side of the chain, and a guide roller wheel matched with a guide rail is fixedly arranged on the sorting roller shaft at the inner side of the chain; the two sides along the longitudinal direction of a stander are respectively provided with a spiral conveying shaft by a bearing seat, and the two spiral conveying shafts are parallel to each other; a motor leads the two spiral conveying shafts to have the consistent rotating shaft and the opposite rotating directions by a transmission device; the screw pitches of the I and the III sections of the spiral conveying shafts are more than that of the II section thereof; the pushing roller wheels are matched with spiral pushing grooves of the spiral conveying shafts; the screw pitch of the II section of each spiral conveying shaft is adjusted, so that the gaps among the sorting rollers running to the II section of the spiral conveying shafts are larger than the diameters of selected fruits; and a feeding groove is arranged above the surface of the I-section sorting roller. The variable-gap roll shaft fruit and vegetable classifier has simple structure, high operation efficiency, stable changing process of the gaps of the sorting rollers, and high classification accuracy rate.

Description

technical field [0001] The invention relates to the field of agricultural and sideline product processing machinery, and belongs to a fruit and vegetable classifier, in particular to a variable gap roller shaft type fruit and vegetable classifier. Background technique [0002] Forest and fruit planting has good economic and ecological benefits, and post-harvest grading of fruits and vegetables has attracted more and more attention as an important means of measuring the quality of fruits and vegetables. However, the post-harvest treatment of domestic forest and fruit products accounts for less than 5% of the total output. Fruit grading packaging technology is relatively backward. [0003] At present, the research on the grading standards and grading machinery of fruits and vegetables abroad has reached a relatively high level. The research on the corresponding fruit grading machinery in China started relatively late, mostly relying on the introduction of complete sets of equ...

AI Technical Summary

Problems solved by technology

The present invention belongs to a roller conveyor type grading machine. In the past, the roller conveyor type roller gap often changes the size of the gap by changing the relative height difference between the pair of rollers or the angle difference between the pair of rollers, and the gap changing process is blunt. , the grading accuracy is not high, etc.

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