Marking device, sorting system and sorting method

The invention provides marking equipment, a sorting system and a sorting method, and relates to the technical field of product sorting. The marking equipment comprises a platform, a limiting assembly and a marking assembly. The platform is provided with a notch groove, the limiting assembly comprises a first plate body and a second plate body, the first plate body and the second plate body are matched to seal the notch groove, the first plate body and the second plate body can form a V-shaped structure, and the marking assembly is arranged on one side of the edge of the platform. The workpieces which do not meet different quality characteristic requirements are marked through the multiple marking assemblies respectively, products meeting other use requirements in the workpieces can be picked out for recycling, the sorting effect is improved, and the product recovery rate is reduced. 本申请提供一种标记设备、分选系统及分选方法，涉及产品分选技术领域。该标记设备包括平台、限位组件和标记组件。平台设置有缺口槽，限位组件包括第一板体和第二板体，第一板体和第二板体配合以封闭缺口槽，第一板体和第二板体能够形成V形结构，标记组件设置于平台沿的一侧。