智能烟苗剪叶机控制系统的设计

Design of a control system for intelligent tobacco seedling leaf-cutting machine

针对现有烟苗剪叶机操作复杂、成本高、效率低、自动化水平低等不足,设计了YJY–ZD桥式烟苗剪叶机控制系统。该系统由执行元件、信息采集单元、信息处理单元和控制电路等组成,可实现烟苗剪叶机一键启动,自动完成往复机构横向往复运动与整机纵向行走自动交互变换,运用往复运动控制算法控制往复机构往复运动,实现往复机构换向时无冲击、残余动能回收。试验测得的剪苗机作业漏剪率为0.55%,伤苗率为0.4%,漏拾率为0.4%,平均工作效率可达692 m2/h。

During culture process of tobacco seedlings, manual leaf-cutting is labor intensive, thus a an intelligent control system for YJY-ZD bridge type leaf-cutting machine was designed to solve the problems like complex operation, high labor costs, less efficient, low automation level, etc as exhibited by the existing leaf-cutting machines have. This system is constituted by action element, information acquisition unit, information processing unit and control circuit, which can start the cutting machine by a key, during which motion of reciprocating mechanism in crosswise and motion of the whole machine longitudinally were alternated automatically, and the movement of reciprocating mechanism was controlled by control algorithm of alternate motion to realize no impact and recover residual kinetic energy when the reciprocating mechanism changed direction. Machine testing results indicated that the proportion of un-cutting leaves is 0.55%, injured seedlings 0.4%, un-picked leaves 0.4%, and the average efficiency is 692 m^2/h.