Commonly used in copper platoon processing machine installation a grating ruler, to replace the traditional positioning block and the photoelectric sensor, its main 'relative motion of the distance by cable to the programmable controller (PLC). According to the grating ruler linear movement of distance and molded parts the mathematical relationship between the bending Angle of PLC programming.

铜排加工机:http://www.rxskjx.com

Copper platoon processing machine

　　当用户输入要求折弯的角度，PLC可计算出光栅的理论位移。当折弯油缸动作，带动光栅尺付尺动作，光栅尺之读数（即主付尺相对移动之距离）与光栅的理论位移一致时，PLC会命令电磁阀反向动作，折弯油缸返回，完成折弯成型动作。

When the user input requirements of bending Angle, the PLC can calculate the displacement of the theory of grating. When bending cylinder action, lead pay scale grating ruler, the grating ruler reading (i.e., the main pay scale of relative movement distance) consistent with the theory of grating displacement, the PLC will command the electromagnetic valve reverse action, bending cylinder returns, complete bending forming.

　　由此可见，采用PLC加光栅尺构成的闭环控制，铜排加工机只需更改内部程序即可实现不同的折弯角度及折弯生产过程自动化，控制系统具有较高的智能化、柔性化功能，而且相比采用数字控制的折弯机而言，又具有良好的性价比。

Thus, PLC and grating ruler constitute a closed loop control, copper platoon processing machine can be realized only need to change the internal program of bending Angle and bending of the production process automation, control system with high intelligence, flexible function, and compared with adopting digital control bending machine, and has good cost performance.