International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 12 Issue: 05 | May 2025
p-ISSN: 2395-0072
www.irjet.net
DESIGN AND ANALYSIS OF PNEUMATIC EXPANSION SHAFT IN SLITTER AND REWINDER MACHINE Mr.R.GOPINATH1, S.PREM KUMAR2, P.NITHISH3, T.M.RAGUL KUMAR4 1Assistant Professor, Dept. of Mechanical Engg, Ganadipathy Tulsi’s Jain Engineering College, Tamilnadu, India 2,3,4 UG Student, Dept. of Mechanical Engg, Ganadipathy Tulsi’s Jain Engineering College, Tamilnadu, India
---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - The efficiency of slitter and rewinding machines
precision and allowed for efficient visualization, simulation, and modification during the design phase. The software’s intuitive interface and robust features supported the accurate representation of shafts, frames, and other mechanical components essential to the project.
relies heavily on the performance of their winding and unwinding shafts, with grip slip emerging as a key issue that compromises material alignment, tension control, and overall process stability. A widely used approach to reduce this problem is by increasing the number of shaft lugs to enhance grip; however, this often reduces the shaft’s structural strength, creating a critical trade-off between grip efficiency and mechanical integrity.
1.2 Introduction to Analysis In simple terms, analysis helps engineers predict how something will perform before actually building or using it. This can include checking: Will it break under load, Will it deform too much, how heat or pressure will affect it. Engineers use mathematical models and simulation tools (like FEA, CFD, etc.) to perform the analysis. It’s an essential step in the design process to ensure safety, performance, and reliability. This analysis is used to understand and optimize the component of a pneumatic expansion shaft under load conditions to ensure uniform distribution load, which is essential for preventing grip slip improving the durability and efficiency of winding/unwinding processes. By using SolidWorks for simulation, engineers can visualize stress concentrations, identify weak points, and test design modifications virtually before physical prototyping, saving both time and cost while enhancing performance and safety.
This study investigates enhancing the performance of a pneumatic expansion shaft made from carbon steel AISI 1035 by redesigning it with an increased number of lugs and also study the shaft performance of existing model and proposed model using Finite Element Analysis techniques. The mechanical response of the shaft under loading conditions is assessed by examining Von Mises Stress, Equivalent Strain, Displacement and Factor of safety. The analysis reveals that increased lug count enhances grip by improving frictional force distribution, but also leads to elevated stress concentrations and higher strain levels in critical shaft regions, which may accelerate fatigue failure. Key Words: Slitter and rewinding machines, Grip Slip, Lug configurations, FEA Analysis
2. LITERATURE SURVEY
1.INTRODUCTION
Govindola Veerander Goud, Dr. K. Vijay kumar and Dr. M. Sreedhar Reddy [1] This study evaluates the structural performance of solid and hollow aluminium-BLF composite shafts through static analysis, focusing on deformation, Von Mises stress, and weight. Results show that these composites meet safety standards comparable to steel. While hollow shafts offer only a modest weight reduction (1.16%), they remain promising for applications requiring a high strengthto-weight ratio.
Slitters and rewinders are crucial machines used across multiple industries to process large rolls of materials such as paper, film, textiles, and nonwoven fabrics. These machines are designed to cut wide rolls into narrower widths (slitting) and then rewind them into smaller, more manageable rolls (rewinding). Whether you're in packaging, printing, textiles or converting, understanding the different types of slitters and rewinders, their key components, various applications and essential maintenance practices is vital for maximizing operational efficiency.
Thirumurugaveera kumar Sundaram and Manivel Muralidaran Velumani [2] This project focuses on developing an automated film roll cutter for roll-to-roll systems used in printing, packaging, and converting industries. Precise tension control during rewinding is critical to avoid common defects. The cutter is designed using advanced 3D modeling for visualization and optimization, with structural and thermal analyses ensuring its strength, durability, and industrial reliability.
1.1 Introduction to Design In this project, SolidWorks software was extensively used for 3D modelling and design. SolidWorks is a powerful CAD (Computer-Aided Design) software widely used in engineering for creating detailed 3D models, assemblies, and 2D drawings. It provided the necessary tools to design complex parts of the slitting rewinding machine with high
© 2025, IRJET
|
Impact Factor value: 8.315
|
ISO 9001:2008 Certified Journal
|
Page 1288