Thesis

1. Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5
Mechanizing Kusot Remover for Street Food
Stick Maker Process By Utilizing
Scotch Yoke MechanismIn
Sitio Dampay Salaza,
Palauig, Zambales
PRESIDENT RAMON MAGSAYSAY STATE UNIVERSITY
BACHELOR OF SCIENCE IN MECHANICAL
ENGINEERING
Mendoza, Rubyjean Divine B. Ines, Roselle Mae Anne
Quijano, Lemuel Arquero, Glenn
Anulao, Russel Arnaldo, Jovits

2. Background of
the Study
Statement of
the Problem
Objectives
INTRODUCTION
In SitioDampay, Palauig, Zambales, one
source of income is the production of street food
sticks from bamboo. The makers of these sticks face
a challenge in removing "kusot" from the raw
material as it is time-consuming.
Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5

3. INTRODUCTION
The process requires a huge amount of time and effort to
produce the product. The workers assigned to accomplish
this task are also at risk of injury and muscle cramps.
Many existing bamboo polishing machines in the market
adopts electrical-mechanical polishing technique to polish
bamboo sticks, having high efficiency but most of it is not
locally available and can be purchased internationally,
which is probably very expensive.
Background of
the Study
Statement of
the Problem
Objectives
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4. INTRODUCTION
To design a kusot remover machine that can polish four
bundles (20 kg) of bamboo sticks in a short period of
time.
To design and fabricate an easy-to-operate and easy-to-
maintain bamboo polishing machine
Background of
the Study
Statement of
the Problem
Objectives
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5. INTRODUCTION
The researchers will conduct the project study in Palauig, Zambales to help
the people on the community to boost the business of making fully polished
bamboo sticks. The researchers will be focused on the design of the kusot
remover machine.
The machine utilizes scotch yoke mechanism which has a capacity of four
bundles and will be operated by 0.5 hp motor due to material availability.
Manual operation is impossible. The raw materials will be procured online and
from actual shops and be assembled once the items are purchased. This
research will employ quantitative studies. Firstly, a review on different existing
studies will be done to produce a working design based on theory and data
collected from the review. Thereafter, a prototype design to gather data and
generate the machine's design.
Scope and
Delimitations
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6. Related
Studies
Related
Literature
REVIEW OF RELATED
LITERATURE AND STUDIES
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Slider Crank
Depending on the application, a slider-crank mechanism (or a simple
crank) converts rotational to linear motion and vice versa. Because
point C is hinged to a roller, which restricts it to linear motion, link AB is
free to revolve 360° around the hinge while link BC oscillates back and
forth. The driver might be either the slider or the rotating link AB.

7. REVIEW OF RELATED
LITERATURE AND STUDIES
Related
Studies
Related
Literature
Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5
Scotch-yoke mechanism
Scotch-yoke mechanism functions like that of the simple crank
mechanism except that its linear output motion is sinusoidal. As
wheel A, the driver, rotates, the pin or roller bearing at its periphery
exerts torque within the closed yoke B; this causes the attached
sliding bar to reciprocate, tracing a sinusoidal waveform

8. METHODOLOGY
Prototype
Design and
Assessment
Redesign
Components,
Parts and
Specifications
Design
Software
Manufacturing
Process
Testing
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9. METHODOLOGY Prototype Design and Assessment
The machine took a
lot of effort to
move
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Bamboo sticks are
falling into the gaps
Mechanical linkage
is bad

10. METHODOLOGY Redesign
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The prototype made can operate, but it failed to achieve
some of objectives, so to alter its design, changing the
orientation of the plates, frame, and linkage. Also applied
design calculations to identify the correct capacity of the
motor should use and the suitable sizes and
measurements of different components.

11. METHODOLOGY Main Components
Scotch Yoke
Mechanism
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Wheel and Belt Plate

12. METHODOLOGY Main Components
Motor
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Speed Reducer Frame

13. METHODOLOGY Main Components
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Machine Assembly

14. METHODOLOGY Design Software
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For this project study, AutoCAD software is
essential for the technical drawing application. Three-
dimensional and two-dimensional drawings are both
implemented by using AutoCAD. Each of the parts is drawn
and then assembled as one machine. Each drawing can be
viewed from a different perspective, from three-
dimensional to two-dimensional.

15. METHODOLOGY Data Analysis and Calculations
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16. METHODOLOGY Manufacturing Process
Grinding
Process
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Lathe Machine
Joining
Process
Coating and Painting
Drilling
Process

17. METHODOLOGY Testing
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Step by Step Procedure
•Have the test bundles ready
•Conduct a manual operation (using foot) on a test
bundle, count the number of cycle made before obtaining
fully polished stick.
•Mark 10 unique sticks and placed them in each bundle.
Use a colored pen and mark them at the head of the
stick.
•Insert the test bundle in the machine.
•Check the marked stick samples every two minutes and
record the following:
1.picture for position of stick
2.polished and unpolished
3.time duration

18. METHODOLOGY Testing
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The chart shows the summary of 3 bundles
polished by 2 minutes interval.
Position of Sticks in a bundle

19. Results
Discussions
RESULTS AND DISCUSSIONS
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20. RESULTS AND DISCUSSIONS
The initial testing was held at Dapla, Palauig, Zambales. Here are the
results that show the functionality of the machine.
Each bundle used has a rubber ring to compress the sticks together.
Each bundle has a slight variation due to the size of the bamboo sticks.
Due to material availability, a 0.5HP motor was used instead of 0.25
HP.
To utilize the scotch stroke mechanism the reciprocating plate should
be at the bottom part of the chamber and the variable loading of the
machine is located at the top part of the chamber where the sticks will
push down towards the reciprocating plate to make sure that the
variable loads (spring) directly compress the sticks and not the
reciprocating plate.
Results
Discussions
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21. Summary
Conclusions
Recommendations
SUMMARY, CONCLUSIONS, AND
RECOMMENDATIONS
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Started as a suggestion and turn into reality. Our research adviser
shows it personally the manual way of removing kusot from the sticks.
Starting from that our research adviser dared us to do a machine that
will quickly and efficiently remove the kusot. This machine will be
beneficial to Palauig and its communities wherein there are a lot of
people selling street food sticks and usingthem as a main source of
income.
One of the main goals of this project study is to try another
mechanism for the kusot remover machine aside from the
traditional slider-crank mechanism. The group comes up with the
idea of a scotch stroke mechanism that has reciprocating linear
motion. The machine was conceptualized out of brainstorming of
the members.

22. SUMMARY, CONCLUSIONS, AND
RECOMMENDATIONS
Summary
Conclusions
Recommendations
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After performing a comprehensive evaluation of
the machine, the rotational to linear
reciprocating motion performed well for the
achievement of removing Kusot and polishing
the sticks within a specific time. The kusot
remover machine is easy to operate and can be
available and produced locally.

23. SUMMARY, CONCLUSIONS, AND
RECOMMENDATIONS
Summary
Conclusions
Recommendations
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Based on the results of the study, the following recommendations are:
1. Replace the motor from 0.5hp to 0.25hp
2. Replace the wheel with a more rigid material
3. Use proper lubrication on the metal-to-metal contact points

24. Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5
THANK YOU SO MUCH