Construction Of Nylon Sealing And Cutting Machine

Project and Seminar Material for Mechanical Engineering ME

Abstract

The ease of cutting and sealing a nylon material especially during mass production of nylon bags using automated machine has necessitated the need to automate the process. Manual cutting and sealing of nylon films do not only waste time, it also increases cost of production as more than required people are employed to a job that can be automated. This project deals with the construction of an automatic sealing and cutting machine which will aid production of nylons. This nylon sealing and cutting machine has an added advantage of making 800 sealed bags per hour. The constructional machines were sourced locally.

The machine can cut and seal nylon materials at an affordable cost. The constructional size is 31 cm x 7.5cm x 12.4 and comprises the following component; the sealing and cutting filament, the transformer with 1000 turns of wire for the secondary and about 1200 turns for the primary, the micro switch, tephlon tape and aluminum sheet casing. In the fabrication of the machine, aluminum sheet were marked and cut to size. The aluminum is placed to protect it from external stress and damage. The filament element and the micro switch converts electrical energy to heat energy The constructed machine showed high performance and efficiency with reasonable degree of accuracy.

Table Of Content

Preliminary Page(s)

• Title Page
• Declaration
• Approval
• Dedication
• Acknowledgement
• Abstract
• Table of Content

Chapter One

• Introduction
• 1.1 Background of the Study
• 1.2 Statement of the Problem
• 1.3 Aim and Objectives
• 1.4 Scope of the Study
• 1.5 Significance of study
• 1.6 Limitation
• 1.7 Organization of the Study
• 1.8 Definition of Terms

Chapter Two

• 2.1 Concept of Nylon
• 2.2 Core Components of Nylon Cutting Machine
• 2.3 Heat Seal Process

Chapter Three

• 3.1 System Analysis
• 3.2 Current Manual Procedure
• 3.3 Design Methodology
• 3.4 System Design and Subassemblies

Chapter Four

• 4.1 System Implementation
• 4.2 Operation of the machine
• 4.3 Testing and result
• 4.3.1 Resistance of the heating element
• 4.3.2 Output power of the machine table 1
• 4.3.3 Determination of the input power of the machine
• 4.4 Discussion

Chapter Five

• 5.1 Conclusion
• 5.2 Recommendation
• Reference

Chapter One

Introduction

1.1 Background of the Study

Automatic nylon sealing and cutting machine is a machine that is used simultaneously to seal and cut nylon films into different sizes depending on the required dimension. Nylon is a type of synthetic rubber widely used often as transference sheets for water proof packaging. Traders in the market require nylon bags in packaging commodities for their customer. The same material can be made in various shapes as long as packaging of goods is concerned. There is obvious need for diversification of the Nigeria economy. We can start by producing some simple machine so that scare of foreign exchange can be conserved for more need and essential goods. It will also enable Nigerians manufacture to expand their industries there by making price of products relatively cheaper compared with the imported ones and at fordable to majority of Nigerians. Developed countries like Japan started by producing simple machine using the abundant local raw material for the manufacture of goods can also be exported in order to earn foreign exchange rather than exporting the raw material (Gent et al, 2017).

There is great need to improve on the technological advancement in the country since, she is blessed with abundant material and human resources who need to be tapped for useful purposed. In plastic industry the machine that are required to process than into usable products can still be manufactured locally. This is the more behind the production of this simple machine (Automatic nylon sealing and cutting machine) that will enable the already processed nylon products to be used in many useful ways. Such as parceling and packaging of goods foodstuffs and over in kitchen as a substitute for moi-moi foil. This shows that the machine is one that is indispensable in the food processing and confectionery industries.

1.2 Statement of the Problem

Manual cutting of nylon bags do not only waste time, it also increases cost of production as more than required people are employed to a job that can be automated. Currently sealing machines only have the ability to seal. They do not have the capacity to cut. This has made the process semi automated as human labour is still employed to cut what has been sealed. Some machines have been developed to cut that which has been sealed but this gives rise to using two machines at a time. This project tends to curb the problem by constructing a sealing and cutting machine which seals nylon and automatically cuts it.

1.3 Aim and Objectives of the Study

The aim of this project is to design and construct an international standard machine that will automatically and simultaneously seal and cut sheets of nylon bags into a required form. To achieve the stated aim, the following specific objectives were laid out:

1. Make the cutting and sealing process fully automated
2. Inculcate slicing ability in the machine
3. Make the machine safe enough to avoid machine incurred hazards

1.4 Significance of the Study

No doubt, the implementation of this project will go a long way in aiding nylon development processes. This automated process curbs time wastage, raw material mismanagements caused by the manual process.

Also, with the cost involved in importing goods from abroad, the design and fabrication of the machine locally will increase the technological knowhow of the nation. The machine will be available to trades who don’t have money to purchase imported ones. The project is also necessary because it is a test of practical knowledge of student. It also helps prepare student to face the practical problem that they may meet in the field. It is also expected that through such projects student will get more acquainted with material identification and selection. It helps in building more knowledge in student about machine development.

1.5 Scope and Limitation of the Study

This project revolves around the construction of a nylon cutting and sealing machine. This machine feeds the nylon films to the conversion machine in which the film gets folded, punched and sealed. The folding and sealing process is called splicing. The splicing process was judiciously designed to give the desired shape of the nylon before sealing ends.

There were some problems encountered during the progress of the project work. The voltage fluctuation, which is sometimes below the required input voltage of 240v, reduces the heating of the wire and movement of the electric motor. At low voltages, some nylon materials were seen to cut but not sealed. At a very high voltage, the sealing areas of some nylons, although they were sealed, have rough edges due to high temperature. At a steady temperature, everything works fine.

1.6 Definition of Terms

Nylon:

Nylon is a type of plastic made into thin sheets or bags and used especially to keep food fresh or to keep things dry.

Slicing:

Splicing is the process of fixing two ends of film together and cutting away the waste ends. This process is necessary for producing reels of film with the requested size.

Teflon tape:

Teflon tape Thread seal tape (also known as PTFE tape, Teflon tape, or plumber’s tape) is a polytetrafluoroethylene (PTFE) film tape commonly used in plumbing for sealing pipe threads.

Chapter Five

Conclusions And Recommendation

5.1 Conclusion

The design and fabrication of nylon Automatic cutting and sealing machine have been successfully accomplished. It was observed that the machine performs its required objective of sealing and cutting nylon material automatically.

5.2 Recommendation

Small scale machine like the locally built automatic nylon sealing and cutting machine is necessary to reduce foreign exchange for the procurement of sophisticated machineries. The current foreign exchange problems have made it almost impossible for small scale ushers to imports.

This problem is solved by the use of possible locally available raw materials or an accessory to construct a machine that compares favorably well with the so called imported ones in term of durability, efficiency and is affordable. In condemning our locally produced materials. The economy will benefit greatly if this technical revolution is given a change to grow. In improving on this project sufficient fund must be budgeted for operation. Maintenance or the whole purpose of the design will be defeated and a lot of money spent on the project wasted.

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