10
IV
https://doi.org/10.22214/ijraset.2022.41169
April 2022
International Journal for Research in Applied Science & Engineering Technology (IJRASET)
ISSN: 2321-9653; IC Value: 45.98; SJ Impact Factor: 7.538
Volume 10 Issue IV Apr 2022- Available at www.ijraset.com
Design and Fabrication of Paper Counting Machine
Ashokkumar R1, Barathan S2, Suresh R3, Sivapriya S4, Kavinkumar N5
1,2,3,5
Department of Mechanical Engineering, Bannari Amman Institute of Technology, Sathyamangalam, Erode, India
4
Department of Electronics and Instrumentation Engineering, Bannari Amman Institute of Technology,
Abstract: For counting of papers in academic institutions and industries, there are no feasible machines available. The design is
mainly focused on cost effectiveness and for light to medium usages. The machine is constructed by using rollers, battery, DC
motor, LED display, Arduino and IR sensor. In this machine initially we need to keep bunch of papers in the paper feeding tray,
then the Arduino is reset. The LED displays the number of papers counted. The machine works based on IR sensor & colour
detection. The machine is designed for counting the standard A4 size paper. The roller helps in separating each sheet from a
bunch of sheets.
Keywords: Arduino, Colour detection, IR sensor, Paper counting.
I. INTRODUCTION
For counting of papers in academic institutions or in industries or wherever the usage of papers & documentation is high, there are
no feasible machines or devices available for saving valuable time. The manual counting may result some error and costs time.
Maintaining of databases in documentation area is difficult. Some of the available machines are high in cost and suitable mainly for
heavy usages. The available machines also involve complex mechanisms. So that it is proposed to design a cost effective simple
paper counting machine using simple mechanical & electronics systems. The design is mainly focused on cost effectiveness and for
light to medium usages. It is also suitable for multiple usages and applications. The introduced machine should be portable, effective,
efficient and it should adopt to innovations to be made in future. A market survey states that major problem faced by reprographies,
stationary shops, documentation sectors are counting and collecting of papers. An average of 1 to 50 papers become a easy task
whereas more than 50 becomes a challenging one. So, the introduced machine will be more feasible for their problem.
II. SELECTION OF COMPONENTS
A. Acrylic sheets
The medium impact acrylic sheet is selected as a base material of the machine. The vertical plates and bottom plate are made using
sheets of thickness 10 mm. The Electronic unit cover, Top cover are made using thickness of 4 mm. The material is easily available
in variety of colors, thickness and transparency which is also compact in weight and effective in cost.
B. Frame
The Frame used is easily available aluminium frame with a square section of 30 X 30 mm. The frame is chosen as it is most feasible
for mechanical mountings, light weight and low cost. The frame part joins the bottom and vertical plates, collecting and feeding tray.
C. Sheetmetal
The Collecting tray and feeding tray of this machine is made using sheetmetal. The glass fibre may be effective in some cases as
surface finish is helpful for smooth flow of papers. But, as the machine is cost effective and easily portable, the best choice is
sheetmetal. The sheetmetal used has a thickness of 1.5 mm.
D. Arduino
The Electronic controller used in the machine is Arduino UNO R3 board. The board acts as a controller which controls the DC
Motor and IR Sensor. The inputs such as IR signals and outputs such as Motor control and LED Display count are processed in this
board. The board is feasible in cost and the electronic connections are easy.
E. DC Motor
Three DC Motors controls the feeding, flowing and collecting of papers. The motors are connected with the Arduino with the help
of drivers. The motors consumes low power and provides enough torque. The motors used are 12 V DC with a speed of 150 RPM.
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International Journal for Research in Applied Science & Engineering Technology (IJRASET)
ISSN: 2321-9653; IC Value: 45.98; SJ Impact Factor: 7.538
Volume 10 Issue IV Apr 2022- Available at www.ijraset.com
F. Motor Driver
The electronic power voltage fluctuation may burn out the Arduino. So, to overcome this effect and to provide better electronic
connection, a motor driver module is used here. In this machine, the module used is L293D chipset. There are two Motor driver
modules used here.
G. IR Sensor
The main objective of the machine which is counting is obtained by the use of Infrared (IR) Sensor. The sensor is very low in cost.
It is easily connectable with the Arduino and high efficiency in object detection.
H. LED Display
The outcome of this machine is recorded by the use of 8 segment LED Display connected with the Arduino.
I. Belt Drive
As the End part of the flowing process of papers requires more precise separation so that the detection and counting process
becomes more efficient. The end part which has two rollers rotating in opposite directions is connected through a belt driven pulleys.
The belt is Rubber made.
J. Rollers
There are three different sized rollers in this machine which acts as a mechanism for separation and smooth flow of papers. The
Rollers are Connected with the motors through Shafts and bearings. The rollers are made up of ABS Plastic as it is very light weight
and has smooth surface finish which does not do damages for the paper.
K. Bearings
The bearings ensure the smooth rotation of the shafts in this machine. This also mounts the shafts and motors with the vertical plates
of the machine. Two different sized bearings are used with Inner diameter of 10, 6 mm and outer diameter of 30,19 mm respectively.
III. MECHANISMS AND METHODOLOGY
The machine works on the basic objective which is obtained by the use of two processes explained below.
A. Counting Mechanism
The Papers are initially fed on the feeding tray. Then the Machine is Reset and the Papers are flown through the tray and each single
sheet is separated and the IR sensor detects the flow and the flow is counted and it is displayed in the LED display.
Fig. 1 Methodology of Counting process of Paper Counting Machine
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International Journal for Research in Applied Science & Engineering Technology (IJRASET)
ISSN: 2321-9653; IC Value: 45.98; SJ Impact Factor: 7.538
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B. Collecting Mechanism
The other process is collecting of papers. Initially the paper is fed in the feeding tray and the required number of papers are set with
the help of Arduino and the papers will get separated and counted with the above counting procedure. When the set number of
papers are collected, the machine will stop.
Fig. 2 Methodology of Collecting process of Paper Counting Machine
C. Working Methodology
The machine consists of mechanical components such as Motors, Rollers, Acrylic sheets, Sheetmetal, Shafts, bearings, nuts, bolts,
frames, clamps, screws. And the electronic components are Infrared sensor, Arduino board, breadboard, L293D chipsets, wires,
battery and LED display. Initially the paper bundle is fed in the feeding tray of the machine, then after resetting the Arduino the
motors starts and the first roller which is a tyre like in both the ends starts pulling the papers and the separation of papers starts here.
For more efficiency there is a roller in middle part which is also pulls the paper to the end part. The first and middle roller and
controlled by individual motors connected with Arduino with single motor driver. The end part has two rollers because of more
requirement of precise separation of paper which is controlled by a single motor and a motor driver. The two rollers rotate in
opposite direction which is obtained by using a belt pulley drive. Then the paper is flown and the Infrared sensor detects and the
count is displayed in the LED display. The process is repeated.
Fig. 3 Electrical connections of Paper Counting Machine
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International Journal for Research in Applied Science & Engineering Technology (IJRASET)
ISSN: 2321-9653; IC Value: 45.98; SJ Impact Factor: 7.538
Volume 10 Issue IV Apr 2022- Available at www.ijraset.com
IV. DESIGN
The electronics are connected with the use of breadboard and the electronic mountings are covered by an acrylic transparent cover.
The top body of the machine is also covered by transparent acrylic sheet to protect the papers and machine from dusts. The base
plate and vertical plates are joined with the use of aluminium frames. The trays are also connected with the plates using aluminium
frames. The motors are mounted on the vertical plate with the use of motor clamps. The shafts holds the Rollers and the shafts are
mounted with the motors and vertical members through bearings. The IR sensor is mounted in the End part of the machine.
Fig. 4 Rendered Model of Paper Counting Machine
Fig. 5 Front view of Paper Counting Machine
Fig. 6 Side view of Paper Counting Machine
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International Journal for Research in Applied Science & Engineering Technology (IJRASET)
ISSN: 2321-9653; IC Value: 45.98; SJ Impact Factor: 7.538
Volume 10 Issue IV Apr 2022- Available at www.ijraset.com
Fig. 7 Top view of Paper Counting Machine
Fig. 8(a) Annotations of Paper Counting Machine
Fig. 8(b) Annotations of Paper Counting Machine
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International Journal for Research in Applied Science & Engineering Technology (IJRASET)
ISSN: 2321-9653; IC Value: 45.98; SJ Impact Factor: 7.538
Volume 10 Issue IV Apr 2022- Available at www.ijraset.com
S.no
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TABLE I
DESIGN SPECIFICATIONS
Component
Material
Specification
Base plate
Acrylic sheet
600 * 250 mm
2
3
4
Vertical plate
End Roller
Shaft
Acrylic sheet
ABS Plastic
Aluminium
600 * 250 mm
OD = 59.5 mm
OD = 10 mm
5
6
7
Middle Roller
Roller tyre
Frame
ABS Plastic
Rubber
Aluminium
OD = 48 mm
OD = 69 mm
30 * 30 mm c/s
8
9
Collecting tray
Bearing
Sheetmetal
Chrome
stainless steel
1.5 mm thick
ID = 10 mm
OD = 30 mm
10
11
Shaft
Bearing
Aluminium
Chrome
stainless steel
OD = 6 mm
ID = 6 mm
OD = 19 mm
12
Motor clamp
Aluminium
3 Nos
13
Motor Support
Aluminium
3 Nos
14
Motor
-
12 V DC, 150
RPM
15
Motor shaft
-
-
16
17
Pulley
Belt
Aluminium
Rubber
2 Nos
Length =
168.69 mm
18
Arduino
-
Arduino UNO
R3, 5 V
19
Motor Driver
Module
-
L293D
20
21
22
LED Display
Breadboard
IR Card
Acrylic sheet
LED 12864
830 tie points
-
23
24
25
IR Sensor
Top cover
Electronics
cover
Acrylic sheet
Acrylic sheet
-
26
Feeding tray
Sheetmetal
1.5 mm thick
V. STATIC STUDY
The important mechanical parts which forms the Machine’s structure were to be studied so that the conclusion can be made whether
the dimensions, material, design, DFMA etc., are safe and in limit so that the machine will work fine and no errors takes place. The
importance of static study is to design a machine safer to avoid vibrations, thermal effects, stresses and strains etc., The said
parameters are studied and analysed using Solidworks software by performing static study. The mechanical specifications and
parameters for the materials are shown in below table.
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International Journal for Research in Applied Science & Engineering Technology (IJRASET)
ISSN: 2321-9653; IC Value: 45.98; SJ Impact Factor: 7.538
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S.no
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5
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TABLE III
MATERIAL SPECIFICATIONS
Parameter
Acrylic sheet
Aluminium
Name
Acrylic
1060 Alloy
(Medium-high
impact)
Type
Linear Elastic
Linear Elastic
Isotropic
Isotropic
Yield strength
4.5e7 N/m2
2.75742e7 N/m2
Tensile
strength
Elastic
modulus
Poisson’s ratio
Density
Shear
modulus
Thermal
expansion
7.3e7 N/m2
6.89356e7 N/m2
3e9 N/m2
6.9e10 N/m2
0.35
1,200 kg/m3
8.9e8 N/m2
0.33
2,700 kg/m3
2.7e10 N/m2
5.2e-5 /Kelvin
2.4e-5 /Kelvin
A. Base Plate
Fig. 9 Stress study of Base plate
The part is made up of Acrylic sheet material. The total mass of the part is identified as 1.79771 kg. No thermal effects takes place
in this part. The Von mises stress is found to be a minimum of 2.722e1 N/m2 and a maximum of 2.574e6 N/m2. As the stress is found
to be in limit and in safe zone, the design is safe.
Fig. 10 Displacement study of Base plate
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International Journal for Research in Applied Science & Engineering Technology (IJRASET)
ISSN: 2321-9653; IC Value: 45.98; SJ Impact Factor: 7.538
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The URES Resultant displacement is found to be a minimum of 0 and a maximum of 1.114e0 mm. As the displacement is found to
be in limit and in safe zone, the design is safe.
Fig. 11 Strain study of Base plate
The Equivalent strain is found to be a minimum of 1.221e-7 and a maximum of 5.207e-4. As the strain is found to be in limit and in
safe zone, the design is safe.
B. Vertical Plate
Fig. 12 Stress study of Vertical plate
The part is made up of Acrylic sheet material. The total mass of the part is identified as 1.76527 kg. No thermal effects takes place
in this part. The Von mises stress is found to be a minimum of 0 and a maximum of 3.407e-4 N/m2. As the stress is found to be in
limit and in safe zone, the design is safe.
Fig. 13 Displacement study of Vertical plate
The URES Resultant displacement is found to be a minimum of 0 and a maximum of 3.407e-4 mm. As the displacement is found to
be in limit and in safe zone, the design is safe.
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ISSN: 2321-9653; IC Value: 45.98; SJ Impact Factor: 7.538
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Fig. 14 Strain study of Vertical plate
The Equivalent strain is found to be a minimum of 1.157e-7 and a maximum of 1.517e-5. As the strain is found to be in limit and in
safe zone, the design is safe.
C. Frame
Fig. 15 Stress study of Frame
The part is made up of Aluminium material. The total mass of the part is identified as 0.027 kg. No thermal effects takes place in
this part. The Von mises stress is found to be a minimum of 9.393e1 N/m2 and a maximum of 8.4645 N/m2. As the stress is found to
be in limit and in safe zone, the design is safe.
Fig. 16 Displacement study of Frame
The URES Resultant displacement is found to be a minimum of 0 and a maximum of 2.641e-3 mm. As the displacement is found to
be in limit and in safe zone, the design is safe.
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International Journal for Research in Applied Science & Engineering Technology (IJRASET)
ISSN: 2321-9653; IC Value: 45.98; SJ Impact Factor: 7.538
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Fig. 17 Strain study of Frame
The Equivalent strain is found to be a minimum of 3.051e-9 and a maximum of 9.424e-6. As the strain is found to be in limit and in
safe zone, the design is safe.
VI. RESULTS AND DISCUSSION
The machine is designed and fabricated with simple mechanical and electronic systems at very low cost. This machine is portable
and affordable. The machine is mainly suitable for low to medium usages in offices, accounts section, stationery shops,
Reprographies etc., This machine is also maintenance free. It also occupies less space only. Setting the allowance between the roller
and the tray is the difficult task, as it leads to improper separation of papers.
VII.
CONCLUSIONS
The output expected in this machine is to reduce the human power and the time taken to count the papers in industries and in
educational institutes and it is achieved. Further improvements like increasing the capacity of papers in the tray can be made by
incorporating additional rollers. This machine can be used for further applications like counting cards by incorporating additional
features. The machine can be also further automated by using additional electronic and mechanical systems.
REFERENCES
[1]
[2]
[3]
[4]
Irshath Ahamed R, Mohamed Amir, Kamalnathan P,Kalaiselvan, Automatic paper vending machine, International Journal of Science, Engineering and
Technology Research (IJSETR), Volume 4, Issue 4, April 2015.
Li Y Tang, Y Zhang, & Liu N, Study on Paper Separating Mechanism of Counting Machine. In Applied Mechanics and Materials (Vol. 312, pp. 226-230).
Trans Tech Publications Ltd.
Anju S, Chippy SR, Haritha H, Nijo VC. and Er. Beena A.O., Automatic Paper Counting Machine, International Journal of Science Technology &
Engineering (IJSTE) Vol.2, Issue 10, pp.917-921, 2016.
Faculty of Mechanical Engineering: Design Data. 4th edn. Kalaikathir Achchagam, Coimbatore (2017).
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