A material sorting device with enhanced absorption characteristic difference

Abstract

The invention provides an absorption characteristic difference enhanced material sorting apparatus. A feeding device transmits a material to be sorted to the detection zone of a photoelectric sensing device through a material transmission deice, a control system determines that whether the rejection of the material is needed or not according to the signal of the photoelectric sensing device in order to control a material rejecting device, the sorting apparatus also comprises a reflection background board, light emitted by an illumination light source irradiates the material to be sorted, and is absorbed and scattered in the material, light permeating the material to be sorted is reflected on the reflection background board, and is absorbed and scattered in the material to be sorted, and the photoelectric sensing device detects the light signal scattered from the material to be sorted. The absorption characteristic difference enhanced material sorting apparatus which allows the light permeating the material to be sorted to be reflected and permeate the same material again effectively increases the light absorption and scattering path and improves the color or brightness difference of a transparent and semi-transparent material, so the recognition rate is improved.

Description

technical field [0001] The invention belongs to the technical field of photoelectric separation, and in particular relates to a sorting device capable of enhancing the difference in light absorption characteristics of transparent and translucent materials. 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] In recent years, under the stimulation of the country's efforts to increase energy conservation and emission reduction and the transformation of industrial structure, the price of plastic raw materials has risen sharply, and the recycling industry of waste plastics has gradually emerged. Due to the increase in labor costs year by year, more and more plastic recycling ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem existing in the prior art that "transparent and translucent materials with small color difference or brightness difference cannot be effectively sorted", the purpose of the present invention is to provide a transparent and translucent material that can improve the color difference or brightness difference. Material sorting effect device

Images