Development of PLC Based Automatic Prototype Cutting Machine

Cutting is a compressive and shearing phenomenon, where cutting a materials like paper, timber, pipes to the required length in any manufacturing industry is the initial step. Increasing in Global competition and technological advances are forcing manufactures designers and engineers rapidly produce strategies decreasing products development cost and time. Manufactures who exit at a same time have the option of selecting optimum technologies or processes to coincide with their manufacturing surrounding. The main idea of this work is to design a prototype model for automating the cutting process for varying length in continuous cutting process with reduced time and cost which may applicable in industry. Programmable Logic controller (PLC) and Human Machine Interface (HMI) is used to propose new approach, HMI is designed to enter the values like length, rpm, number of counts and HMI is connected to PLC by RS485 serial communication protocol. PLC is programmed to control the servo motor where entered values are converted to pulses and when targeted length is reached PLC will actuate pneumatic press to cut the paper to solve the problem of continuous cutting process for varying length.