摘要
经编机是依靠由槽针与针芯之间的相互运动关系,从而达到不同的控制运动,而槽针与针芯的运动是由不同的原动件所驱动的。采用伺服驱动来代替传统的凸轮驱动,由已知槽针针尖的运动轨迹,通过机构之间的联接关系,推导出两原动件与槽针针尖坐标之间的数学表达式,构建了控制的硬件系统,并且通过编写PLC的程序来控制伺服电机的转角,由PLC伺服直接驱动输入轴运动。不同类型的产品只需要改变PLC的程序,即可达到灵活控制的目的,实现控制的自动化。
Though groove-needle and needle-core are respectively driven by different original dynamic parts,their mutual movements can help the warp knitting machine realize different controlling goals.Servo drive will replace the traditional cam-drive.Since trajectory of groove needlepoint is already known,through the institutional links the mathematical expression between two original dynamic parts and the coordinates of groove needlepoint can be deduced.Construct the hardware control system for controlling,and the PLC procedures are prepared to control the corners of servo motors,so the input shaft is directly driven by PLC servo.When producing different kinds of products,only PLC procedures need to be changed.In this way,the goal of control automation can be reached.
出处
《机械设计与制造》
北大核心
2011年第1期15-16,共2页
Machinery Design & Manufacture
