Multi-material sorting system and method for long logistics conveying line

Abstract

The invention provides a multi-material sorting system and method for a long logistics conveying line. The multi-material sorting system comprises materials, a long conveying line, a rejection line, amarking device, a sorting device, a plurality of sorting lines, a warehouse management system and a PLC, wherein a rejection joint, a plurality of sorting joints and an outlet joint are arranged on the long conveying line in the conveying direction respectively; the marking device marks each material; the sorting device guides the materials on the long conveying line to the rejection line or thesorting lines; the warehouse management system allocates a target address to the sorting lines; the warehouse management system allocates the target address to the rejection line for the materials which fail to be marked; and the PLC judges whether the materials reach the target address or not and controls the sorting device to conduct sorting. The rejection line is additionally arranged at the head end of the long conveying line, and a material recovery line is additionally arranged at the tail end of the long conveying line, so that unmarked materials can be efficiently and accurately conveyed to the rejection line; and in addition, the materials which do not enter the sorting lines in the sorting process are directly conveyed to the material recovery line, so that the utilization rate of each sorting line and the material warehousing accuracy are improved.

Description

technical field [0001] The invention relates to the technical field of material sorting, in particular to a multi-material sorting system and a sorting method for long logistics conveying lines. Background technique [0002] In order to achieve high-speed sorting of large batches and multiple batches, enterprises often use a whole section of long main conveyor line with more than ten sorting ports, and cooperate with conveying equipment, picking robots, visual recognition, sorting machines, etc. to realize fully automated high-speed sorting . But the following problems will occur: [0003] (1) High-speed sorting often uses sorting rules such as weight and color for sorting, which can quickly sort to each lane; but for electronic products of the same type and different models, it is necessary to visually identify the material barcode or two-dimensional The code is more accurately identified, and the material conveying speed is greatly affected by visual recognition. [000...

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Problems solved by technology

[0004] (2) During the conveying process of the whole section of the main conveying line, the barcode or two-dimensional code of the material is identified by the barcode reader, and the identified information is transmitted to the host computer by the barcode reader, and the host computer distributes the material Target address; when the barcode reader does not recognize the material information, the abnormal material will be sorted together with other materials to cause an abnormality, resulting in a sorting error

During the transportation of materials on a long main conveying line, it is easy for short and multiple materials to accumulate in the same position in a short period of time, resulting in abnormal data, and incorrect allocation of material addresses.

[0006] (4) The existing assembly line sorting devices mostly use electric or pneumatic swing bar sorting devices and swing roller sorting devices, but the disadvantage of electric or pneumatic swing bar sorting devices is that the swing arm angle is too large, which will affect the subsequent material transportation and Sorting beats are not conducive to high-speed material transmission; in addition, the swing-to-roller sorting device has a complicated structure and is difficult to replace and maintain

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