Development status and trends of the development of seedling pick-up mechanism of transplanter in dry land

Seedling pick-up mechanism play an important role in the transplanter of dry land，which determines the quality，reliability and efficiency of transplanting. It is the key to realize transplanting automation. Based on the study of the current situation of seedling collecting mechanism at home and abroad，this paper introduces several typical seedling collecting mechanisms of transplanting machinery in dry land. They are connecting rod seedling picking mechanism，planetary gear system seedling picking mechanism，pneumatic seedling picking mechanism，ejector rod seedling picking mechanism，clamping seedling picking mechanism and transplanting seedling picking robot. Their advantages and disadvantages are compared from the aspects of seedling picking speed，complicated structure and cost. Automatic seedling collecting mechanism is the most suitable seedling collecting mechanism，while robot seedling collecting mechanism will be the final choice. At present，the seedling picking mechanism is still developing，and it is developing in the direction of high speed，high efficiency and intelligence.