Color selector

Abstract

The invention relates to the technical field of color sorting, and particularly discloses a color sorter which comprises a rack, a vibration feeder, a sliding groove, an optical detection system, a conveying belt, a tachymeter, a signal processing system, a spray valve blowing nozzle, a material baffle and a discharging hopper. The optical detection system is isolated from the working area of thespray valve blowing nozzle, splashing materials are prevented from entering an image acquisition area of the optical detection system, splashing material particles generated when the spray valve blowing nozzle removes the materials are prevented from entering the optical detection system by arranging the material baffle, the clean environment of optical glass is protected, and the image acquisition area is prevented from being influenced by the splashing materials. The problem that the transparency of the optical glass is reduced due to long-time beating of materials is thoroughly solved, andthe color sorting precision and the running reliability of the whole machine are improved; and the optical glass is kept clean and easy to implement. The structure is simple, and implementation is easy.

Description

technical field [0001] The invention belongs to the technical field of color sorting machines, in particular to a color sorting machine capable of improving image acquisition quality and color sorting precision performance. Background technique [0002] Color sorters have been widely used in quality testing and product grading in grain, plastic, ore and other industries. According to the different materials selected and the specifications of the machine, the output of a single color sorter is several hundred kilograms to several thousand kilograms per hour. [0003] The basic principle of the color sorter is that the material is evenly distributed on the chute through the vibrating feeder, and when the material accelerates down the chute to leave, it falls freely with an oblique parabolic trajectory. During the falling process, the material passes through the camera of the optical detection system When passing through the middle of the background plate, under the action of ...

AI Technical Summary

Problems solved by technology

[0004] But the color sorter of prior art is as Figure 4 As shown, since the nozzle of the nozzle and the optical detection system are intertwined in the same working area, when a particle of a different color is blown down by the nozzle of the nozzle, the surrounding particles are taken out by the air jet and splash in the shape of a trumpet , some of the particles hit the protective glass of the optical system, leaving prints on the glass. As time goes on, the optical glass will become blurred due to the accumulation of prints caused by a large number of hits, which seriously blocks the camera. At the same time, the splashed material particles also make the image acquisition repeated or misjudged, resulting in misjudgment of the signal processing system and misblowing of the nozzle of the nozzle, directly reducing the accuracy of color selection

[0005] At present, in order to solve the above-mentioned problems of the optical system of the color sorter, the method adopted is: install a rubber dust brush on the outer surface of the optical glass for regular cleaning, but for hard materials such as wheat and corn particles, the splashed particles hit the optical surface Imprints on the glass that are difficult to remove with a squeegee

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