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Fabrication Of A Pepper Grinding Machine
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CHAPTER THREE
GENERAL DESCRIPTION AND IT WORKING PRINCIPLE
3.1 HOPPER UNIT
This is a place where the food product to be grinded, is pour to it, made up of mild steel of 2.4mm thickness. From this unit the food moves to crushing units.
3.2 CRUSHING UNIT
It comprises of the worm and rotating shaft. The worm is constructed from a pipe and cut to be required shapes and sizes of 135mm by 700mm diameter
A portion was cut off to the dimension. The cut made to the worm is to make it well inserted and welded to the base of the hopper.
It is housed to the rotating shaft and permits smooth rotation of the shaft.
The rotating shaft s of iron and machined to the required size of 410mm by 25mm on the lathe machine. This unit crushed the food from hopper units and passes it to the grinding units. The dimension is shown below:
Length of shaft = 110mm
Diameter of shaft = 30mm
Length of step part of the shaft = 85mm
Diameter of step part of the shft = 35mm
3.3 GRINDING UNIT
It consists of two grinding disc in which one is movable and the other is fixed. Both of the disc were made of cast iron, the movable are is on the transmission shaft and rotates when the shaft is rotating.
Below are the dimensions of grinding unit:
External diameter =50mm
Thickness =10mm
3.4 BEARING
Bearing in the grinder serves as a means of supporting the rotational motion of the crushing shaft. It consists of two hardness steel ball and rollers.
A case is an attachment which provides the ball or roller at accurate spacing and prevents them reaching each other.
3.5 PULLEY
This transmits the drive from an electric motor to the rotating shaft through the belt; there is provision for it to be belted to the shaft.
It is of mild steel metal with a groove cut around it, circumstance to accommodate the belt drive connection from the motor.
These are the sizes of pully
Thickness of the ring =20mm
External diameter =240mm
Internal diameter =200mm
3.6 MACHINE STAND
This is designed for coefficient carrying from one place to another. It was constructed by welding two angular iron of nd steel together to form a table, thick plank sure face upon which machine is bolted.The dimension of the stand is show below:
Breath = 38mm
Length 19.7mm
Total area
= Length x breath
=19.7x38
= 748.6mm
System component
i. The hopper unit
ii. The crushing unit
iii. The grinding unit
iv. The coflecting unit
V. The transmission unit
vi. The bearing and housing
vii. The pulley
viii. Belt drive
ix. The stand
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ABSRACT - [ Total Page(s): 1 ]AbstractThe process of crushing and grinding domestic product into powdered form was approached and achieved in this project work taking into account some necessary modifications due to the limitation found in the previous design machine. With the continuous improvement and advancement in the present days technology has brought the invention and making of diverse types and shapes of machine. These machines require different kind of energy for its operation and to produce useful work and it does ... Continue reading---
TABLE OF CONTENTS - [ Total Page(s): 1 ]TABLE OF CONTENTTitle page Approval page Dedication Acknowledgement Abstracts Table of Contents CHAPTER ONE1.0 Introduction 1.1 Aims and objectives of a pepper grinding machine 1.2 Objective 1.3 Units of a grinding machine 1.3.1 The Hopper unit 1.3.2 The crushing unit 1.3.3 The Power Unit 1.3.4 The collection unit 1.4 Literature Review CHAPTER TWO2.0 Analysis of alternative method to grinding machine 2.1 Manual grinding machine 2.2 Grindin ... Continue reading---
CHAPTER ONE - [ Total Page(s): 1 ]CHAPTER ONE1.0 INTRODUCTIONThe project titled fabrication of machine is used for grinding domestic food stuff like corn, pepper, beans, tomatoes, melone.t.c. The grinding operation was carried out in the olden days with the aid of grinding stone. This method is very tedious and unhygienic in nature. The particle of the grinding stone can easily be mixed with the grinding food items which may be hazardous to the food itself and also to the personnel undertaken such task by entering his or her bod ... Continue reading---
CHAPTER TWO - [ Total Page(s): 1 ]CHAPTER TWOANALYSIS OF ALTERNATIVE METHOD TO GRINDING MACHINE2.1 MANUAL GRINDING MACHINEThe manual grinding machine is a model of all grinding machine and it is small and occupies a little space. It has a stand that saves its shock absorber. Wonder is connected to the shaft through to the power input is transmitted when the food is dropped into the wonder the wonder will be conveniently okay. The shaft crushes it before transferring into grounding unit where it will be grinded before ... Continue reading---
CHAPTER FOUR - [ Total Page(s): 5 ]TOTAL WEIGHT OF THE MACHINE Mass of the machine = 6.5kgGravitational force = l0m/sWeight =?W = 6.5 x 10W =65N4.4 DISCHARGE RATEDischarge rate is denoted by QQ= AVWhere A =cross sectional area of hopperV = Velocity of the revolutionUsing: Q= AV------------------------ (ii)V = l0m/sA = Length x breadth= 300x 305 (mm2)= 91500mm2By converting mm^2 to m^2 we haveQ = lOm/s x 91.5m^2 Q = 922.6m^2/s4.5 VELOCITY RATIO OF THE BELT DRIVEIt is the ratio between the velocities of the driver and the ... Continue reading---
CHAPTER FIVE - [ Total Page(s): 2 ]THE COLLECTION UNITThis unit houses the grinding does and it is made of mild steel sheet aid are welded together.An adjust nut and handle is assembled at the external part of it to control the operation of the grinding disc for. The construction of the adjusting nut and handle shaft was gripped in table rice threaded to make room for used key, while the bushing connected to the cover face of the unit was threaded too.The grinding is however not limited to the above parts alone. It comp ... Continue reading---
CHAPTER SIX - [ Total Page(s): 1 ]CHAPTER SIXCONCLUSION AND RECOMMENDATIONS6.1 CONCLUSIONAfter the completion of the pepper grinding machine it was subjected to force indeed which the design was based.Surely, adhering to the recommended and prescribed usage procedure applied the appropriate maintenance of every prescribed interval, a lengthy life span and best service is assured if precautions are timely taken as stated.6.2 RECOMMENDATIONSThe major type of grinding machine being adopted is said to be the pepper grinding ma ... Continue reading---
REFRENCES - [ Total Page(s): 1 ]REFERENCESChapman, WA. (1943), Work Ship Technology Part I and 2 Edition Edward Ainold published limited 41 London pp 43_73Chapman, Dr W.A(1938) Work Ship Technology Part 2, 3(Edition Edward Arnold Published Limited 41 Bedford Square London .W C LB3DOlagoke, S .A (1990) Properties for Material 3RD Edition Ibadan PP,1,41,160,164.Boollon W. (1994) Materials for Engineering Bath Prem Great Butam pp 1-18.Garratt Y.(1991) Design and Technology Press Syndicate of Cambridge, United Kingdom pp 196 -203. ... Continue reading---
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ABSRACT - [ Total Page(s): 1 ]AbstractThe process of crushing and grinding domestic product into powdered form was approached and achieved in this project work taking into account some necessary modifications due to the limitation found in the previous design machine. With the continuous improvement and advancement in the present days technology has brought the invention and making of diverse types and shapes of machine. These machines require different kind of energy for its operation and to produce useful work and it does ... Continue reading---
CHAPTER THREE -- [Total Page(s) 1]
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CHAPTER THREE -- [Total Page(s) 1]
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