Working of Vending Machine

8/10/2019 Working of Vending Machine

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WORKING OF VENDING MACHINE

bsme1119Roll No: 29


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VENDING MACHINE

Table of Contents

1. Executive summary:........................................................................................................................................................................... 3

2. Definition:.......................................................................................................................................................................................... 3

3. Background: ....................................................................................................................................................................................... 2

4. History:.............................................................................................................................................................................................. 3

5. MANUFACTURING PROCESS: ..................................................................................................................................................... 3

5.1 Raw Material: .................................................................................................................................................................................... 3

5.2 Process .............................................................................................................................................................................................. 4

6. Working Principal of a Vending Machine ................................................................................................................................................ 5

6.1 Keypad .............................................................................................................................................................................................. 5

6.2 Bill Checker ...................................................................................................................................................................................... 6

6.3 Coin Checker ..................................................................................................................................................................................... 6

6.4 Metal spirals ...................................................................................................................................................................................... 6

6.5 Match of input and output ................................................................................................................................................................. 7

6.6 Delivery Report ................................................................................................................................................................................. 7

6.7 Beverage enclose ............................................................................................................................................................................... 7

6.8 Touch Screen ..................................................................................................................................................................................... 8

7. TYPES OF VENDER MACHINES ......................................................................................................................................................... 8

7.1 Milk Vending Machine ............................................................................................................................................................ 8

7.2 Cold Food Vending Machine ............................................................................................................................................................ 9

7.3 Coffee Vending Machines ............................................................................................................................................................... 10

7.4 Snack Vending Machine ................................................................................................................................................................. 11

7.5 Soda Vending Machine ................................................................................................................................................................... 11

7.6 Frozen Food Vending Machine ....................................................................................................................................................... 12

7.7 Full-line vending ............................................................................................................................................................................. 12

8. INNOVATIONS .................................................................................................................................................................................... 13

8.1 Bill Changer .................................................................................................................................................................................... 13

8.2 Coin Fraud ....................................................................................................................................................................................... 13

8.3 PUSH BUTTON ............................................................................................................................................................................. 13

9. SAFETY AND SECURITY ................................................................................................................................................................... 14

9.1 Risk of Falling ................................................................................................................................................................................. 14

9.2 Safety and Reliability ...................................................................................................................................................................... 14

10. Pros & Cons ......................................................................................................................................................................................... 14

11. REFERENCES ..................................................................................................................................................................................... 15


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1.Executive summary

This report is about the wending

machine. Firstly I have defined it and then there is history and background.

Manufacturing process of vending machine is briefly discuss here. Working

principal along with the parts and pictures is illustrated. Different types of vending

machine are discussed. Difference between old and modern machines i.e.

innovation in vending machine is touched. Pros and cons of the vending machine

are written as it has both. At the end of report references are mentioned.


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2.Definition:

A vending machine is an electronic machine used to give out a product

to the user after the insertion of required amount money into it. It is commonly used

to disperse beverages and snack items.

3. Background:

The Americans were the pioneers to introduce the concept of vender

machine in North America. The earliest vender machine was being used in North

America in the year, 1946. However this concept took ten years to imply in United

Kingdom. In late 19th

century vending machines were appeared on commercial scale

which is the era of Industrial Revolution.

4. History:

The vending machine was invented by an Alexandrian mathematician

named as HERO in 215 B.C. This device accept bronze coins and he used in at

Alexandrian temple. Later on a Chinese inventor developed a coin operated pencil

vender machine. The US government started paying heed towards coin-operated

vender machines. As a result a company named as ADAM GUM in 1888 developed

gum machines based on coin-operated vender machine research.

5.MANUFACTURING PROCESS:

5.1 Raw Material:Vending machine are primarily constructed from major raw materials.

Lexan.

Galvanized steel.

Acrylic powder coatings

Polyurethane insulation.
http://en.wikipedia.org/wiki/File:Hero_of_Alexandria.pnghttp://en.wikipedia.org/wiki/File:Hero_of_Alexandria.png


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When 20 oz. (592 ml) plastic soda bottles were first introduced, they tended to jam the

machine. This leads the designer of the vendor to re-work and research for better facility and

feasibility of the customers and in short they wanted to fulfil the customer needs.

5.2 Process The cabinet is made up galvanized steel. First of all in the assembly line the raw sheet

passes through the flattener where the sheet is being flattened by using the automated

press. Afterwards the sheet is being cut according to the desired shape required.

Generally the cabinet is made up of two sheets.

Other presses also helps to make holes for the nut and bolts to make the structure aligned

and stiff. Corners and edges of the sheet are notched in order to maintain the desired

shape.

The sheet is made to pass through different hydraulic presses to flatten it and in thisprocess a force of 200-400 tons is exerted by the press. The press helps to make the

original shape of the cabinet by making different edges and corners.

The seams and leakages are made secured by resistance welding also known as spot

welding in which high electrical voltage charge is applied which results in sealing the

sheet.

Finally, the cabinet is made ready and is transferred to the finishing area where powder

coating is performed which makes its surface shiner and smoother.

Presses provide forming and bending, and separate pieces are welded to create a whole

unit.

The tank is further taken to assembly section to make it fit to its correct cabinet.

Before powder finishing the cabinet is made to pass through eight different stages. , the

cabinet is attached to an overhead conveyor that runs the cabinet 210 ft (64 m) through

the pre-treatment system.

Nozzles mounted in the manufacturing section spray throughout the cabinet to make the

sealing stronger and afterwards the alkaline wash is done to make the heavy duty soil

removed from the surface.

The cabinet is then rinsed, coated with zinc phosphate, and rinsed again.

Chromic acid, a sealer, is then applied and the surface is rinsed again.

Then the surface is made to rinse in deionized water. After it the drying process startedwhich takes 30 to 60 mints for a temperature of 350 to 400 F.

The cabinet is the transferred to acrylic powder unit where coating of the powder is

performed.

After this the cabinet is made to pass through the cure oven under a temperature of 370 F

for 20 -30 mints.


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The tanks and cabinet and are then placed into the insulation chamber to make the cabinet

and the tank to fit in a desired shape at very high temperature.

When foaming is completed the refrigeration units are installed at the bottom of the

cabinet which helps in making the temperature stable. Sometimes these units are being

place or slid or being maintained tight by nuts and bolts.

In the final stage of the machine the doors are installed and as a result the can feeder and

trays are also installed with electrical conductivity and electrical circuits to perform

different actions.

All assembly items are placed on the door while it is in this carousel. Operators fit the

coin and bill validators, card acceptors, selection buttons, LCD displays, and other

external controls in the appropriate spots and attach them with bolts or screws. Selection

buttons are wired to the motors of the proper can stacks. Front panels of silk-screenedLexan are installed in channels on the doors. Lighting fixtures are bolted in place and

wired into the power supply. Finished doors are carried to the cabinets and automatically

attached. The completed can soda vending machine is then ready for quality checking andtesting. In this way a vender machine further goes under different process to make itstable and durable.

6. Working Principal of a Vending Machine

Several small parts work together with the main computer to make the vending machine what it

is today.

6.1 KeypadThe keypad has many function to do. It is mainly used for the input to the main

computer. It also has different combination keys which are used to guide the user.


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6.2 Bill Checker

When one use a bill, it pulls the bill into the vending machine andthrough the optical scanners. These optical scanner have built in camera in them

which take picture of the bill and send it to the main computer for authentication and

verification. Computer runs a program which for this purpose and give the related

feedback.

6.3 Coin Checker

It is used to check the coin with the help of

different electromagnets. Metal composition and thickness of the coin is verifiedas different types of coin effect differently in the magnetic field. This is how the

vending machine differentiates among different types of coins e.g. a quarter,

dime, nickel, penny or even a plastic coin. Many newer vending machines also

allow for purchase through credit card.

6.4 Metal spiralsMany vending machines are equipped with metal spirals to hold products inplace. Metal spirals are used to hold the product in its place.


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6.5 Match of input and outputWhen one enters the coin, it is checked and then computer asks for the

product that user wants to buy. Computer runs a program that verify

the match or money entered and the product needed and after

authentication the spiral moves the required amount of steps forward.

6.6 Delivery ReportWhen the desired product is released by the metal spiral it falls

off. In the mean while it comes across the path of a laser beam.

Laser beam is installed to check that product is delivered to the

user successfully or not. When the product falls it cut the path of

laser beam and this generate a signal which is sent to the main

computer.

6.7 Beverage encloseMetal spirals along with the plastic containers are used in

vending machines for the enclosure of beverages.


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6.8 Touch ScreenNow we have vending machine those are equipped with the

touch screen mechanism. It helps the user and facilitate them

to save time.

7. TYPES OF VENDER MACHINES

Vender machines are of different variety

and are being used according to the variety of the products that are used in it. Some of them are

given below.

7.1 Milk Vending Machine

Carton Vending Machine


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Bottle Vending Machine

7.2 Cold Food Vending MachineThe cold food vending machine is the machine

that will be selling items such as salads, sandwiches, breakfast items, or meals. These types of

items are precooked and only need to be reheated. There are two major types of cold food

vending machine:

Glass front


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Turret style

7.3 Coffee Vending MachinesCoffee vending is a very profitable segment of the

vending industry. There are two types of machines available in today's market.

Whole bean machine

Ground coffee machine


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7.4 Snack Vending MachineSome of the different products

those could be vended a large through snack machines.

Chips

Pastries

Cookies

Nut bars

Crackers

Bag Candy

Candy Bars Granola bars

7.5 Soda Vending MachineThese machines can be put

into two categories.

Soda vending machine with glass front. Soda vending machine without glass front.


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7.6 Frozen Food Vending Machine

ROBOTIC

GLASS FRONT MACHINES

7.7 Full-line vendingA full line of vending machine in a

hospital cafeteria, including machines for drinks, snacks, and

microwaveable foods.

These are some of the vending machines that are widely used in

different countries of the world and they have made the life of the people easier and free from

many different problems.
http://en.wikipedia.org/wiki/File:Vending_machines_at_hospital.jpghttp://en.wikipedia.org/wiki/File:Vending_machines_at_hospital.jpghttp://en.wikipedia.org/wiki/File:Vending_machines_at_hospital.jpg


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8. INNOVATIONS

8.1 Bill ChangerWhen a vending machine run out of coins then exact change lightcomes on. When the exact change light comes on customers become very

agitated. The bill changer has a large capacity of coins which eliminates

your problem.

8.2 Coin FraudIt is main issue in the mechanical vending machines in worst cases. Coin of same size and

weight may be used to purchase item. Sometimes a coin of high value during the change is givenout. But these issues are addressed in the modern vending machines but now a day the use of an

electromagnet which check the size, weight and composition of the coin inserted.

8.3 PUSH BUTTONA push button and touch screen is

being installed in Germany. Vender machines have

gone through a process of great changes and

innovations due to upcoming technology and growing

needs of the customers. In early stages the machine is

meant to perform just small simple actions such as

pick and drop of the product that is being

commanded by the user. But now-a-days many

different machines are equipped with debit card and

multi-functioning.
http://en.wikipedia.org/wiki/File:Redbox_Kiosk.jpghttp://en.wikipedia.org/wiki/File:Redbox_Kiosk.jpg


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11. REFERENCES

Babyak, Richard J. "New Era for Insulation (Change is in the Wind for Blowing

Agents)."Appliance Manufacturer41, no. 8 (August 1993): 47-48.

Bailey, Jane M. "Vending Machines Take a Beating."Industrial Finishing67, no. 4

(April 1991): 36-37. "Coca-Cola Customers to Buy Vending Machine Drinks Using Marconi's GSM Dial-a-

Coke Solution. Wireless Internet3, no. 5 (May 2001): 7.

Marcus, David L., Leslie Roberts, and Jeffery L. Sheller. "A Hot Idea From Those Cold-

Drink Folks." U.S. News and World Report127, no. 18 (8 November 1999): 10. Prince, Greg W. "100 Years of Vending Innovation."Beverage World117, no. 1651

(January 1998): 214-216.

Simpson, David. "A Peak in the Heart of Dixie (Dixie-Narco Inc.'s Use of Powder

Coatings)."Appliance46, no. 8 (August 1989): 56-57. Somheil, Timothy. "Vending Innovation."Appliance55, no. 1 (January 1998): 87-89.

Stevens, James R. "The Dixie-Narco Story."Appliance47, no. 6 (June 1990): 31-4.

Sutej, Joseph M. "Evaluating Low-CFC Foam Insulation."Machine Design62, no. 10(24 May 1990): 108-109.

Wikipedia.

Working of Vending Machine

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