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针对目前缠绕膜打包机出膜不均匀、缠绕膜利用率低、自动化程度不高及运行不可靠等缺点,文中阐述了新型托盘打包机的电气控制系统设计,以PLC作为主控制器件,通过变频器、接近开关及电位器实现了对系统底盘的速度和位置控制、预拉伸机构上下行速度和位置控制、缠绕膜预拉伸控制,克服了上述缺点,取得了良好的运行效果。
In view of the current non-uniform wrapping film wrapping machine, wrapping film utilization is low, the degree of automation is not high and unreliable shortcomings, the paper describes the new pallet baler electrical control system design to PLC as the main control device, through the frequency The device, the proximity switch and the potentiometer realizes the control of the speed and position of the system chassis, the speed and position control of the pretensioning mechanism, the pretensioning control of the pretensioning mechanism and the pretensioning control of the stretch film, which overcomes the above shortcomings and achieves good operation effect.