Sampling device on color grading machine

Abstract

The invention discloses a sampling device on a color grading machine. A track allowing a granular material to naturally flow is formed on the color grading machine. The sampling device comprises an optical detection part, a jet valve, a non-defective product recovery tank, and a defective product recovery tank, wherein the optical detection part is arranged at the track along which the granular raw material naturally flows down; the jet valve is arranged below the optical detection part and is used for removing defective products from normal granular raw materials; the non-defective product recovery tank is arranged below the jet valve and is used for recovering non-defective products of the granular raw materials which are not subjected to the exclusion action of the jet valve; the defective product recovery tank is arranged below the jet valve and is used for recovering defective products of the granular raw materials which are subjected to the exclusion action of the jet valve; thenon-defective product recovery tank and the defective product recovery tank form an integral box-shaped recovery part; and a non-defective product sampling port communicated with the non-defective product recovery tank and a defective product sampling port communicated with the defective product recovery tank are arranged on the recovery part, and cover bodies capable of opening or closing respective opening parts are arranged on the non-defective product sampling port and the defective product sampling port respectively. By utilizing the sampling device provided by the invention, the problems of raw material loss and low percentage of polished rice can be solved.

Description

technical field [0001] The invention relates to a sampling device, in particular to a sampling device used in a color sorting machine. Background technique [0002] In the process of removing bad grains, foreign grains and foreign matter contained in raw materials, it is often hoped that 100% of bad grains, foreign grains and foreign matter can be removed from raw materials, but in fact 100% removal is impossible. Therefore, the existing color sorting machine selects materials by means of setting up a secondary sorting section for re-selecting defective grains or returning defective grains to the raw material side for re-selection. Therefore, in the sorting performance of the primary sorting part or the secondary sorting part of the color sorting machine, the sorting rate (defective product removal rate) often becomes the benchmark (indicator) for evaluating the quality of the color sorting machine. [0003] The sorting rate refers to the total weight of defective products ...

AI Technical Summary

Problems solved by technology

[0004] Patent document No. 8-24899 and JP 2003-24874 disclose two kinds of color sorting machines, but these two kinds of color sorting machines all use the grain lifting machine received from the raw material warehouse or defective products. , air suction device or sampling device and other mechanical conveying means to extract samples, so even if it is only a simple calculation of the selection rate, a large number of samples will be extracted, and there are problems such as loss of raw materials or low rice output rate.

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