This project work deals with the design of coconut leaf midrib removal machine. Our machine can easily remove the midrib from the coconut leaf. This method will help the farmers reduce their work and ease the risks.

1. Design & Development
of
Coconut Midrib Extraction
Machine
Guide: Dr. Anish John Paul (EEE HOD)
 Ajisha T
 Ansal Sajan S
 Freedslin MR
 Lieo V Abilash

2. Objective
To design and develop a Midrib extraction machine that
grinds coconut leaves and give us midrib.
Outcome of our project
“The outcome of the project should make the work of farmers and other people easier
who areall related to the coconut based business.”

3. Abstract
 Coconut trees are abundant in our country accordingly it has a wide range
application.
 Each part of the tree provides high benefits.
 This project work deals with the design of coconut leaf midrib removal
machine.
 Since the several parts of the coconut tree used for lot of industrial and
medical applications.
 But the removal process is complicate because it has to be done manually and
Consume more amount of time.
 So, our new innovative machine can easily remove the midrib from the coconut
leaf.
 This method will help the farmers to reduce their work and also ease the risks.

4.  Midrib of the coconut leaf is used in making brooms for household.
 Another important purpose of midrib in coconut tree is that of medical
usage. The midrib of coconut leaf is the large, center part of the leaf.
 The midrib of coconut leaf is investigated for the purpose of synthesis for
natural fiber composite.
 There are several applications such as for making lightweight composite
fibers also for making handicrafts.
 Thus the process of separating midrib from the coconut leaf is usually
considered to be a tedious process because of its time consuming.
 So we come out with an idea to cure this problem.
Introduction

5. Manual method
 Take a leaflet and insert the knife between the mid-rib
and the greens Shear.
 With the knife along the mid-rib to separate the greens.
 The remaining greens can be pulled down with hands.
 There may be a thin layer of greens attached to the mid-
rib.
 This process requires a lot of manual labor if done
commercially also time conception is more in this
process.
LITERATURE SURVEY

6. Title : Design and Development of a Novel Machine to Separate
Midribs from the Coconut Leaves
 In this model, they use three cylindrical rollers to separate midrib.
 Among these 3 rollers, one roller is spiked. Which is fixed on the
centre.
 When the AC motor is operated it moves the coconut leaves
towards the roller with spikes.
 The roller with spikes removes the midrib from the coconut leaves.
Author : G.P.Karthikeyan
Final Year, Dept. of EEE, Kongu Engineering College, Erode, Tamilnadu, India.
Source : www.ijareeie.com
(Cont….)

7. They use 3 rollers and the spike is less. So the
output is not accurate.
By our method, we can overcome this
disadvantage and improve the output.
Reference
Link 1

8. Problem and Identification
 In the most of the villages, the villagers more rely on the
coconut tree’s product so they tends to do the midrib
separation through the means of their own hands with the
only help of knives.
 But it seems to be an unsafe method and also takes a
longer time and which may happen to be damage to their
hands.
 In manual process extraction requires more time and more
man power.

9. Methodology
 By our newly designed machine we can automatically
remove midribs from coconut leaves.
 We use cylindrical spike rollers to separate the leaves
from midrib.
 Gears are provided for spin of roller at different speed.
 Metal plates are used to arrange the leaves.
 Time consumed in this process will be reduced while
comparing to the traditional method.
 Cost is reduced and profit is increased in this way of
extraction process.

10. 5:step Understanding process
Leaves In
Process 1
Process 2
Waste
Collection
Mid-Rib
Collection
Feed Coconut
leaves into the
Machine through
the Metal Plate.
Coconut leaves from
the tray is passed in
between two rubber
coated rollers to
Maintain the grip.
After that leaves are
then passed in between
the Spiked roller. Which
grind all leaf and leave
the Mid-Rib Alone.
The waste is
collected
and give to
Agricultural
Purpose.
The
processed
Mid-Rib are
collected in a
tray which is
fixed next to
the Roller.

11. Coconut leaves
30 degree
Inclined Tray
Rubber coated Cylindrical
Rollers
Separated midrib Overlapped Spike rollers
Motor
Coupled chain or gear
arrangement
Block Diagram
Leaves after
extraction of midrib

12. Metal Plate
Rubber Roller
Motor
Collecting
Plate
Spiked Rollers
out
Design Of The Coconut Midrib Extraction
Machine

13. Design of Spiked
cylinder

14.  We use Six Rollers to
process the midrib.
 The first and third set of
rollers is Rubber coated.
 The second set of rollers is
spiked on four sides.
COMPONENTS
1) Cylindrical Rollers 2) Gears 3) Bearing
 A gear is a rotating
circular mechanical part
having cut teeth.
 We use multiple gears to
rotate the rollers at a
constant speed.
 A bearing is a mechanical
element that constrains
relative motion to only the
desired motion and reduces
friction between moving
parts.
 We use Pillow Block Flange
Bearing to reduce the
friction between roller and
gear.

15.  A motor is an electrical machine
that converts electrical energy
into mechanical energy.
 We use Planetary Geared DC
motor to rotate the rollers.
 Rotation Per Minute -200 rpm
 voltage -12v
 output torque- 15kgcm

16.  We use 12v 30Amps SMPS power
supply.
 This is High amps SMPS and
protected with cooling fan for
long time use.
 You can control the voltage from
9.5 to 14.5v approx..

17.  Max 400 watts PWM Speed
Controller.
 With reverse polarity protection and
high current protection.
 Working Voltage: DC 12V - DC 40V.
 PWM Duty Cycle:10% -100%
 PWM Frequency:13 KHz

18. TOP VIEW

19. Conclusion
 Our project is successful in helping the farmers and
others who are associated with the coconut farming
industry.
 It is technically as well as economically feasible.
 This product saves time as well as labour required for
the leaf pealing process from a coconut leaf.

20. LOREM IPSUM DOLOR SET
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labores.