Review Paper Based Demonstration of PLC Controlled Electro-Pneumatic Stamping Machine

The proposed work describes the design and fabrication of prototype of electro pneumatic stamping machine controlled by PLC and shedding light on the working principle and the hardware structure of the system. In this pneumatic system we replace traditional hand stamping method by automatic stamping. By automating this process one can have a greater control over the process. Programmable Logic Controllers are used for the control of the system. This system can replace existing manual feed and operated punching and pressing machines. By interfacing PLC controls with the conventional machines, it is possible to achieve good results in the form of reduced manual efforts, time and reduced cost. Now this automatic paper stamping machine consists of conveyor belt mechanism on which we place any paper to be stamped. We interfaced IR proximity sensor to detect the object. We also used DC motor to run the conveyor belt and when the conveyor starts IR proximity sensor will detect the object. When object is detected it will indicate a signal to the PLC and the PLC will stop the conveyor motor, the second motor will start to print the stamp on the page. After specified time the conveyor will start again and process will continue to stamp next object.