A whole row automatic pick-up device using air force to blow out vegetable plug seedlings

Hanping Mao; Guoxin Ma; Luhua Han; Jianping Hu; Feng Gao; Yang Liu

Ayuda

A whole row automatic pick-up device using air force to blow out vegetable plug seedlings

Mao, Hanping ^[1] ; Ma, Guoxin ^[1] ; Han, Luhua ^[1] ; Hu, Jianping ^[1] ; Gao, Feng ^[1] ; Liu, Yang ^[2]
1. [1] Jiangsu University
  
  Jiangsu University
  
  China
2. [2] Xinjiang Academy of State Farms, Institute of Mechanical Equipment, Shihezi 832000
Localización: Spanish journal of agricultural research, ISSN-e 2171-9292, ISSN 1695-971X, Vol. 18, Nº. 4, 2020
Idioma: inglés
Enlaces
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Resumen
- Aim of study: To develop a whole row automatic pick-up device using air force to blow out plug seedlings, to avoid the damage to seedlings that the current way of seedling picking by needle insertion induces.Area of study: Jiangsu Province, China.Material and methods: We designed a pick-up device which mainly consists of a seedling transporting device, a seedling air loosening device, a seedling clamping device and an automatic control system. The damage rate of seedling was significantly reduced and the success rate of seedling picking was increased by using the new seedling air loosening method and the new designed end-effectors. A prototype of the new pick-up device was produced according to the calculation results, and the performance tests were arranged under actual production conditions in an indoor laboratory.Main results: The calculation showed that when the diameter of the blowhole in air nozzle is 3.5 mm, and the air pressure is between 0.146 MPa and 0.315 MPa, the seedlings can be blown out successfully. Besides, the clamping strain test showed that the new designed end-effector can meet the requirements of seedling picking. The orthogonal test showed that both the air pressure and water content significantly affected the success ratio. The success ratio reached 96.64% when air pressure was 0.4 MPa, water content was 55%-60% and airflow rate was 100%, what meets the current requirements of transplanting.Research highlights: This research can provide some references for the automatic transplanting technology.