石材机械的应用
发布日期:2022-06-22 11:22:44

 随着石材产业的高速发展,石材深加工的要求不断增加,石材机械也跟随着时代的脚步,逐步智能化。为石材产业的发展做出了重大贡献。
  当前国内的石材切割机大多数采用的是传统的继电器-接触器控制方式,控制方式比较落后,切割精度较差,而且切割时需要人员进行现场控制,切割现场大量的粉尘对操作人员的人身健
康构成了很大的危害。本文设计了一套石材在线自动分片切割系统,该系统可自动对大型石材进行分片切割和计数,系统具有操作简单、维护方便、造价低廉及人机界面友好的特点。十分适
用于大多数中小型乡镇企业的需求。
  1系统工作原理
  本设计是将石材的要求切割参数输入人际界面(HMI)对PLC进行初始化,并利用旋转编码器代替传统的行程开关或限位开关进行切割长度定位。通过旋转编码器测得各方向电机的旋转频
率并转换为高速计数脉冲送入PLC中进行计数运算可获得刀锯或台车行进的精确位移量,将其与设定的初值相比较,当达到设定值时PLC复位相应的方向电机线圈使其停车。系统控制原理如图1
所示。该控制系统采用台达DVPES2系列的做为控制器,同时配备台达编码器和台达DOP-B系列触屏式人机界面,系统控制部分结构简便灵活,系统造价较低。

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