ABSTRACT
The design
and fabrication of a reciprocating nail gasket is a new innovation in
technology. The one in existence is manually operated. In which a punch that is
adjacent to a die is mounted to the handle
which is attached to the shaft. A
helical spring that is incorporated to the shaft of the punch, helps the handle
return to its initial position, which makes the machines tedious and stressful
to operate. When the handle is pulled down from its initial position, the punch
passes through the die that is placed
vertically adjacent to the punch thereby blanking out the felt
materials. The number of the gasket produced is proportional to the strength of
the operator. But in our design, we incorporated a geared motor which does the cutting in a
reciprocating form, while the operator
just drags the felt material to the die where it is cut. The efficiency of the machine is well above 75%, it can
produce 216 felts per minutes . sprockets and chains are used to transfer
power instead of belts in other to
effect good phases relationship. The material used for the punch is stainless
steel rod. The machine is statically and dynamically balanced to curb noise and
vibration. One and half (11/2) inch angle iron was used in fabricating the
skeletal frame.
Appropriate materials were subsequently selected and
fabricated to required size. The machine was then to perform efficiently thus satisfying the
objective for which it was designed.
TABLE OF CONTENTS
Title page
Approval page
Dedication
Acknowledgement
Abstract
Table of content
Chapter one: Introduction
1.1
Background of study
1.2
Purpose of study
1.3
Scope of study
Chapter Two: Literature
Review
2.1
Specification of problems
2.2
Field survey/study
2.3
Different types of gasket and their uses
Chapter Three: Design
Consideration, Specification and Construction
3.1
Design factors/Consideration
3.2
Material selection
3.3
Tools and Equipments Employed
3.4
Design of welded Connections
Chapter Four: Design
Calculations and Analysis of the Machine
4.1
Forces analysis on the reciprocating mechanism
4.2
Calculating the displacement, velocity and
acceleration of the slider
4.3
Estimating the power of the geared motor
4.4
Chain length calculation
4.5
Design of sprocket teeth for roller chain
4.6
Chain drive selection
Chapter
Five: Fabrication Procedure, Materials Selection, Principle of Operation and
Cost Analysis.
5.1
Fabrication Procedure
5.2
Materials selection
5.3
Cost analysis
5.4
Guidelines in Designing for production
Recommendations
References
CHAPTER
ONE
INTRODUCTION
Following
the advancement of technology, and the need to eliminate the archaic method of
producing nail gasket in this era, which really decreases production.
The aim of our improved motorized nail
gasket cutting machine, it to increase production drastically and to reduce
human fatigue and cost of the product.
The materials employed in this design
and construction of the machine is mechanically reliable. this work is also
helped to act as a catalyst and encouragement
towards the promotion of indigenous ingenuity in technological
development of our country. And federal government’s involvement in encouraging and funding of
degree projects to construct machines
that would help the nation.
1.1
BACKGROUND
OF STUDY
Nigeria is
still a developing nation, federal government has mapped out huge money for
industrial buildings, housing estates, and foreign investors are coming into
the country to invest their various business.
This
motorized nail gasket producing machines will really boast production and also
help increase revenue generated through exportation of the product.
1.2
PURPOSE OF
THE STUDY
The
machine is existence manually operated
in totality of the product produced by the machine is proportional to the
strength of the operator. And the manual one is difficult to maintain and
durability not guaranteed as in the case of these that used low quality
material in construction.
This particular work
understands the problems, there by incorporating geared motor so that number of
gaskets produced will be proportional to the horsepower of the motor i.e
production increases.
1.3
SCOPE OF
THE STUDY
This design and construction work is considered with only a prototype. A theoretical
improvement consideration and design of all components parts of the machine
will be guided by the design of standard components.
Problems is also covered in other to
realized the purpose of the project. This work covers the stages of machine
development, design/fabrication of components parts and construction of its
parts.
Process involved in the design are analyzed.
Stresses on deformation forces were given consideration. This report covers
detail parts and assembly drawing with recommendation on manufacturing methods.
Choice of design was subject to
information modification at the energy of many factors beyond strength and rigidity which were important; these
include fabrication techniques and material availability.
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