Design Of Product Classification System By Height.pdf

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HANOI UNIVERSITY OF SCIENCE AND TECHNOLOGY

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Table of contents

CHAPTER 1: OVERVIEW OF THE PRODUCT CLASSIFICATION SYSTEM 4

1.1 Overview of the product classification system 4

1.2 Control principle of the system 5

1.2.1 General principles 5

1.2.2 Block diagram of the system 6

CHAPTER 2: SYSTEM DESIGN CALCULATIONS 7

2.1 Basic parameters of the system 7

2.2 Analysis and selection of basic components of the control system 8

2.2.1 Select the processor 8

2.2.2 Select components 10

2.3 Design electrical drawing: 20

CHAPTER 3: CONTROL PROGRAMING AND INTERFACING DESIGN 21

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Society is developing, people's material and spiritual needs are increasing, so the problem of supply and demand is being solved by manufacturers Automation in the production line is an optimal option, it requires quickness, accuracy and minimization of labor The more automated the production process, the more productive it is, reducing costs to increase competitiveness for businesses.

Considering the specific conditions in our country in the industrialization and modernization, using more and more modernequipment to automatically control the processes of production, processing, product processing This led to the formation of flexible production systems, allowing for a high level of

automation for small and medium series mass production using CNC machines, industrial robots In which, an important stage affecting the quality of goods sold is the product type system.

The mechatronics system design project with the topic "Design of product classification system by height" is

researched to strengthen students' knowledge, and at the same time help students see the connection between the knowledge Student: Nguyen Viet Hung 2 ID: 20185261

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learned at school with practical applications The topic has many important applications in many fields like shipping products, counting products, and categorizing products With this automation system we can minimize the labor that comes with reducing production costs.

Due to limited knowledge and not much implementation time, in the process of implementation, shortcomings will inevitably be avoided The topic is looking forward to the comments of teachers.

I would like to sincerely thank Mr Dang Bao Lam for his dedicated guidance and creating many favorable conditions for me during the process of implementing this topic

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CHAPTER 1: OVERVIEW OF THE PRODUCT CLASSIFICATIONSYSTEM

1.1 Overview of the product classification system

In production practice, it is easy to come across output lines of different sizes specifically here is height In order to minimize labor costs and avoid boring jobs for workers, reduce the rate of errors in the line, the automatic product classification system by height was born.

Depending on the complexity and requirements of each level of classification, we have many different forms of classification such as:

Color gradingMass classificationHeight classificationMaterial classificationBarcode classification

Student: Nguyen Viet Hung 4 ID: 20185261

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One of them is the classification system by height which is being widely adopted The system operates on the principle of using sensors to determine the height of the product Then usethe actuator mechanism to classify products of different heights The actuator can be a propulsion cylinder, a lever driven from the engine

In the product classification system, there will be 3 main components:

Sensor :

- Will give feedback signals to help the system process signals thanks to the transition from physical signals to electrical signals In this height classification system, we use sensors to detect objects at a certain height to be able to detect objects to be classified.

Enforcement structure

- The execution mechanism will receive orders to perform the tasks offered by the control system Here are the cylinder pistons, conveyors,

Control device:

- It is a device that generates a control signal, in order to influence the actuator to achieve the desired change.- Control equipment includes:

Analog control device: ON/OFF, P, PI, PD, PID

Digital control equipment: Microcontroller, Computer, PLC.Logic control devices: Microcontrollers, Computers, PLCs.Student: Nguyen Viet Hung 5 ID: 20185261

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1.2 Control principle of the system

1.2.1 General principles

The control system works according to the principle that after the conveyor motor is turned on, the workpiece feeding system will proceed to insert the workpiece into the conveyor, then the sensors will proceed to determine the properties of the workpiece and depending on each sensor will send a signal to control the corresponding cylinders to push the workpiece into the sorting tray.Design requirements of the system:

- The basic model must conform to the taxonomic principle in practice.- Easy assembly, connector and control operation.

- Use common materials, equipment and components, easy to replace and repair

1.2.2 Block diagram of the system

In the content of Design Project II (ME3036) the calculation of the design of the control system for the product classification Student: Nguyen Viet Hung 6 ID: 20185261

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system by height with the calculation of the mechanical system design for the system has been made in Design Project I

(ME4186) the calculation of the mechanical system design for the product classification system by height.

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CHAPTER 2: SYSTEM DESIGN CALCULATIONS

2.1 Basic parameters of the system

Cylindrical : h1 = 15cm, h2 = 10 cm, h3 = 4 cm d1= 5 cm, d2 = 5 cm, d3 = 5 cm- Embryo weight: Qmin = 0.4 kg; Qmax = 5.5 kg- Productivity: N = 12 product/min.

Mechanical components were selected in project 1:

- Conveyor: Length L = 1000mm, width W = 150mm, thickness H = 3mm

- Shaft of mourning

Chain disc mounting diameter 15 mm

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- External transmission: Chain transmitter with parameters:

Small chain disc split ring 93,27 (mm)Large chain disc split ring

287,11 (mm)Small chain plate top ring

98,75 (mm)Large chain plate top ring

- This control system design project I will proceed to design the control system for the system with the technical requirements of the system and the mechanical system calculated in project 1 as mentioned above.

2.2 Analysis and selection of basic components of the control system2.2.1 Select the processor

Proceed to select the control option:

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- Option 1: Using closed-off relay devices to set up a logical circuit to control the sequential operating system, combined with an inverter to control the motor

- Option 2: Use siemens PLC programmable logic control equipment to control the whole system, control the motor through integrated signals from the output of the PLC

- Option 3: Use microcontrollers such as Arduino sets to control the entire system

Analysis of advantages and disadvantages of options

Option 1 -Low cost-Easy to replace broken relays

-Low control customization-Built-in development capabilities are almost nonexistent

Option 2 -Modern technology, capable of developinggood integration- Can be easily designed with a monitoring system

-High cost

Option 3 -Modern technology, capable of developinggood integration-Easy to own due to low cost

-Not suitable for flexible production systems in industry

Based on the working conditions and stability of the working system in the factories, I will choose option 2 to have the most convenience in the working process.

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2.2.2 Select components

2.2.2.1 Controllers

PLC controllers offer the flexibility and power to control a wide variety of devices that support automatic control requirements The combination of compact design, flexible configuration and powerful instruction set makes PLC a perfect solution for controlling a wide variety of applications.

Combines a microprocessor, integrated power supply, input and output circuits in a collapsible structure After the user loads the program, the CPU will contain the logical circuit that is required to monitor and control the devices The PLC's CPU monitors the input and alters the output signal according to the program's logic including boolean logic operations, counting, complex operations, and the communication of other smart devices.

Provided input current.

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Consumption currents 500 mA for single CPU.Maximum consumption current 1500 mA for CPU and expansion

mudule.Starting current 12A at 28.8VDC.Hardware configuration.

Number of extended modules 3 communication modules, 1 singalboard, 8 signal modules.Input voltage.

Signal "0" +5 VDC at 1 mA.Signal "1" +15 VDC at 2.5 mA.Input current.

Only signal "1" 8mA.Digital input.

Number of digital inputs 14, Integrated.Digital output.

Number of digital outputs 10.With load of resistance, maximum 0.5A.

With load of lights, maximum 5W.Output voltage

Signal "0" Maximal 0.1V, at 1KOhm Signal "1" Minimum 20 VDC.

Because the S7-1200 has outstanding features:

- The S7-1200 is a line of programmable logic controllers (PLCs) that can control many automation applications Student: Nguyen Viet Hung 12 ID: 20185261

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Product code 6AV2124-0MC01-0AX0Screen parameters 12-inch, 16 million color wide

6 Functions in the system Classification of embryosby height.7

Operating principle When the sensorencounters a magneticfield, it closes the circuit.

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Ultrasonic Distance Sensor code CDD-40N 30CM NPN

Order Characteristic Specifications

2 Working environment -25 to 70°C

2.2.2.4 Enforcement structure- Motor (68KTYZ)

Order Characteristic Specifications

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4 Image

2.2.2.5 Other devicesSwitching power supplyOrde

Characteristic Specifications

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1 Voltage 24VDC.

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2.2.2.6 Push button

1 NC pushbutton

Code sp: YW1B-M1E01R-Size: 22mm.-NC Contact.-Source max:600v.

- Max:10A series.

2 Push buttonFULL

SP Code: YW1LA2E11Q4G-Size: 22mm.-NO Contact.-Source max:600v.

- Max:10A series.

3 - Emergencystop button.

- Size: ø40.- Max voltage: 600V.

- Max series: 10A.- HĐ temperature: 20 to +55oC.

- Humidity: 40 to85%.- Contact: NO, NC.

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2.2.2.7 Pneumatic lubricator TL3000-03

The TL3000 pneumatic oil supply unit has the function of supplying lubricating oil to the compressed air system, helping to lubricate pneumatic valves and pneumatic cylinders.Specifications:

• Manufacturer: STNC (China)• Port size: 3/8" (17mm thread)

• Maximum working pressure: 10 kg/cm2 (1 Mpa)

• Pressure adjustment: 0.5 – 8.5 kg/cm2 (0.05 – 0.85 Mpa)• Operating temperature: 0 - 60

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2.3 Design electrical drawing:

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CHAPTER 3: CONTROL PROGRAMING AND INTERFACING DESIGN

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3.2.3 Conveyor and Emitter

3.2.4 Cylinder

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3.2.5 Counter

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3.3 Simulation

3.3.1 Driver configuration in Factory IO

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3.3.2 Simulation Interface

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3.4 Control monitor screen HMI

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CHAPTER 4: CONCLUSION

Through the process of implementing the topic "Designing a control system for product classification", I have helped me understand more about the product classification system by height as follows:

Chapter 1: Help me know an overview of the control system of the system, know how to do the working principle, analyze the specifications of the system from which to choose the basic components of a control system.

Chapter 2: Know how to choose devices with the right specifications for the system as well as how to connect the controlelements together to form 1 complete connection diagram.

Chapter 3: Know how to build control algorithms, how to set up and statistics the input and output signals of the system Writea control program for the system as well as an activity monitoringsystem for the product classification system.

Know how to learn and simulate the operation of the system through Factory IO software.

The development of science and technology entails the technological development of the product classification system byheight Classification systems are increasingly optimized and integrated with advanced technologies to keep up with the needs Student: Nguyen Viet Hung 30 ID: 20185261

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and trends of society The increasing development of science and technology helps us to improve the control system such as integrating smart devices, optimizing the classification system to increase user efficiency, reduce electricity consumption,