ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

For the purpose of decreasing the investment of labour force in the process of vegetable grafting, a vegetable grafting robot operated by one person for Cucurbitaceous seedlings cultivated in plug trays was designed. The machine utilized the root-cutting grafting method. During working, the operator delivered respectively the stock and scion seedlings from plug trays on the left-hand and right-hand sides to seedling-providing platforms. The seedlings triggered the touching switches and then the machine completed automatically the subsequent motions of gripping, cutting, jointing, fixation and discharge controlled by PLC program. A theoretical analysis of promotion of grafting efficiency was done. In theory, the operating efficiency for one person of this robot can be promoted by 100%, compared with the old type of 2JSZ—600II grafting robot. And the analysis suggested that with the operating qualification promoting, the efficiency would be higher. Experiment results showed that the grafting success rate of the machine could reach up 95% and its grafting speed was approximately 455 seedlings per hour. Compared with previous grafting robots whose grafting efficiency was merely 600 seedlings per hour operated by two people, the machine’s working efficiency of per capita was improved by more than 50%. Therefore, the upgraded machine operated by one person was quite capable of developing the grafting labour efficiency.