Belt conveying device and automatic silicone material sorting system

Abstract

The invention provides a belt conveying device which comprises a first belt conveyor, a second belt conveyor and an arc-shaped reversing plate; the arc-shaped reversing plate is used for being used incoordination with a conveying tail end of the first belt conveyor and a transporting initial end of the belt conveyor belt; the arc-shaped reversing plate is positioned on the same side of the firstbelt conveyor and the second belt conveyor; the first belt conveyor performs conveying to an inner arc surface of the arc-shaped reversing plate; and the transporting direction of the second belt conveyor is opposite to that of the first belt conveyor. Magnetic rods are separately arranged on the first belt conveyor and the second belt conveyor. The invention further provides an automatic siliconematerial sorting system which comprises a belt conveying device, silicone material heavily-doping detecting devices, a machine vision image acquisition device and automatic sorting mechanisms. The belt conveying device and the automatic silicone material sorting system are used for realizing automatic sorting of abnormal materials in a to-be-sorted silicone material, heavily-doped silicone materials and metal wires, the silicone material sorting efficiency is improved, and the omission ratio of silicone material sorting is reduced.

Description

technical field [0001] The invention relates to the field of silicon material sorting, in particular to a belt conveying device and a silicon material automatic sorting system, which are mainly used for sorting abnormal materials, metal wire foreign objects and heavy mixing in silicon materials. Background technique [0002] In the photovoltaic industry, silicon materials are divided into flakes and blocks. The diameter of the flakes ranges from 1mm to 15mm, and the diameter of the blocks ranges from 3mm to 15mm. Silicon material is a commonly used material in the production process of the photovoltaic industry, such as using silicon material for polycrystalline silicon ingots. [0003] Before silicon materials are used, for example, before they are used in polysilicon ingots, corresponding preparations need to be carried out, that is, the silicon materials need to be cleaned, sorted, sorted and other processes. [0004] Among them, the sorting of silicon materials includes...

AI Technical Summary

Problems solved by technology

On the one hand, the efficiency of manual sorting is low; on the other hand, after working for a period of time, manual sorting will easily cause visual fatigue, which will easily increase the missed detection rate, which is not conducive to the smooth progress of silicon material sorting.

And the silicon material to be sorted is transported through the conveyor belt in translation, not only the surface of the silicon material to be inspected is relatively single, but also the phenomenon of overlapping silicon materials will inevitably occur, resulting in the occurrence of missed inspections

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