Detecting and sorting method and device for rice material

Abstract

The invention provides a detecting and sorting method for a rice material, which is applied to sorting of transparent rice, ventral white rice, light yellow rice, deep yellow rice and deep color foreign matters. The method comprises the following steps: arranging blue light sources on two sides of the rice material to be sorted respectively, arranging a red light source on one side and a green light source on the other side, arranging cameras for receiving light source signals on two sides of the rice material, detecting reflected and transmitted blue light signals and transmitted green light signals by using the camera on the red light source side, and detecting reflected and transmitted blue light signals and transmitted red light signals by using the camera on the green light source side; configuring a sorting mode according to the grading requirement of sorting yellow rice or classifying transparent rice and ventral white rice or sorting yellow and white rice. The invention further provides a device for use in the detecting and sorting method for the rice material. The method and the device have the advantages that the bringing-out of ventral white rice is reduced, three different requirements of sorting yellow and transparent rice, classifying ventral white rice and sorting yellow and white rice by using the same scheme are met, the sorting adaptability is enhanced, and greater economic benefit is achieved.

Description

technical field [0001] The invention belongs to the technical field of photoelectric separation, relates to a scheme of color separation and detection, and is used for separation of heterochromatic grain impurities in rice materials. Background technique [0002] Rice usually includes transparent rice, white belly rice, light yellow rice, dark yellow rice, and dark foreign matter (stones, etc.). The sorting of rice mainly includes three requirements: yellow selection, transparent and white belly classification, and yellow and white selection. Among them, choosing yellow is to keep transparent rice and white belly rice in the finished product, and remove light yellow rice, dark yellow rice, and dark foreign matter. Divided into two grades of finished products, the same selection of yellow and white means that the finished product retains transparent rice, and removes belly white rice, light yellow rice, dark yellow rice, and dark foreign matter. [0003] The 400-500nm band i...

AI Technical Summary

Problems solved by technology

[0005] The light path of yellow and white selection adopts an asymmetrical light tube configuration, with more blue lights on one side and a small amount of blue lights on the other side. The camera on the side with a few blue lights chooses yellow, and the camera on the side with multiple blue lights chooses white belly. In this way, the transparent rice can be separated from the white rice, light yellow, dark yellow, and dark foreign matter signals, but only one side can be selected for yellow. If the small spots on the rice are facing away from the camera, they cannot be selected.

Moreover, this optical path configuration scheme cannot be applied to the classification of yellow rice, transparent rice and belly white rice.

[0006] The above several schemes can only meet one kind of rice sorting requirements alone, and cannot meet the commonly used sorting requirements at the same time

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