LED condensation light source and material sorting device based on same

Abstract

The invention provides an LED condensation light source applicable to the photoelectric sorting, which comprises an LED linear array, a fixing support, a scattering uniform light plate, a condensation pillar lens, wherein the condensation pillar lens is a plano-convex cylindrical surface lens; the LED linear array, the scattering uniform light plate and the condensation pillar lens are parallelly and fixedly mounted on the fixing support at certain intervals; the scattering uniform light plate is positioned between the LED linear array and the condensation pillar lens; light sent out by the LED linear array scatters through the scattering uniform light plate, and converges after penetrating the condensation pillar lens. The invention further provides a material sorting device based on the LED condensation light source. The LED condensation light source and the material sorting device have the advantages that emergent light of the LED condensation light source converges through the control of the angle of the emergent light, longer distance lighting can be realized, besides, the lighting luminance and uniformity can be guaranteed, the photoelectric sorting device provided by the invention can enlarge the distance from the LED condensation light source to a material detecting area, the problem of sticky glass window surface when the conventional sorting equipment is used for sorting materials is solved, and the sorting precision is improved.

Description

technical field [0001] The invention belongs to the technical field of photoelectric separation, and in particular relates to an LED concentrating light source and a material sorting device based on the LED concentrating light source. Background technique [0002] The photoelectric sorting device is used in the sorting of various grains, vegetables, dried fruits, tea and other agricultural products, seafood, various plastics, industrial products and other materials. It can quickly and effectively distinguish and remove foreign objects and sort different qualities. grade material. [0003] At present, the main photoelectric sorting device is photoelectric color sorting device. When the photoelectric color sorting device is used to sort materials, it is mainly based on the difference in light absorption and reflection of different materials for a certain wavelength band to distinguish and identify materials. The light sources used are usually fluorescent tubes of various colo...

AI Technical Summary

Problems solved by technology

[0007] The second technical problem to be solved by the present invention is to provide a sorting material device based on the above-mentioned LED concentrating light for the problems caused by the above-mentioned existing lighting sources, which can realize long-distance lighting of the light source and increase the distance between the light source and the detection material To more than 300mm, and ensure the brightness and uniformity of illumination, solve the problems of sticky surface of the glass window in the optical room of the existing photoelectric separation equipment, excessive wear of the glass surface, and space congestion near the detection area.

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