rice vending machine

Discussion in 'The Projects Forum' started by carminagordula, Oct 13, 2010.

  1. carminagordula

    Thread Starter New Member

    Oct 13, 2010
    4
    0
    i am badly needing circuit diagram for the rice vending machine.
    is there anyone who can help?

    it has a vertical conveyor type of dispensing rice (packed by 1/2 kilo)
    with just one variety of rice. it has two buttons present for selecting the number of half rice (kilo) and the other for cancellation of entry.
    It will accept 1 and 5 peso coin and twenty peso (P20) bill and as you input the coin (basically, the amount you inserted will be displayed at the LCD) is decrementing. then the packed rice will dispensed to the claiming area, and will stop; else, there is another selection to dispense out.

    anybody who has an idea about this project, please send me msg or email me at <SNIP>

    thank you so much in advance.
    it will be a great help for my thesis.
    :))))))
     
    Last edited by a moderator: Oct 13, 2010
  2. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
    Im guessing this is either a joke, or a school project..

    Which one is it?

    And are you looking for a flow chart or an actual schematic to a bunch of parts that you have not given the numbers of?
     
  3. t06afre

    AAC Fanatic!

    May 11, 2009
    5,939
    1,222
    Why do you not start on your thesis. Then you are stuck you may ask us for advice. This is way this forum works.
     
  4. Wendy

    Moderator

    Mar 24, 2008
    20,765
    2,536
    Most of this sounds like off the shelf technology. It is almost always cheaper to buy an off the shelf part than to make one (especially mechanical off the shelf parts).

    What have you done so far?
     
  5. marshallf3

    Well-Known Member

    Jul 26, 2010
    2,358
    201
    A vending machine is a mechanical nightmare and they usually buy the coin/note acceptors from outside sources since they're also next to impossible to build.

    I do like the idea for originality but it falls short in practicality, in other words for what it would cost to build one it would be worn out far before it ever paid for itself.

    If you can find a used coin/note acceptor somewhere then you could go about the mechanics of the delivery system.
     
    carminagordula likes this.
  6. carminagordula

    Thread Starter New Member

    Oct 13, 2010
    4
    0


    looking for the schematic diagram or circuit diagram..
     
  7. blueroomelectronics

    AAC Fanatic!

    Jul 22, 2007
    1,758
    98
    For some gizmo you thought up?
     
  8. carminagordula

    Thread Starter New Member

    Oct 13, 2010
    4
    0


    >>and what are the parts that we can use to build this vending machine?
     
  9. carminagordula

    Thread Starter New Member

    Oct 13, 2010
    4
    0


    >> this is not a joke..this is our thesis, please help me for the circuit diagram and what are the components or parts that we can use to build this one?
     
  10. marshallf3

    Well-Known Member

    Jul 26, 2010
    2,358
    201
    I thought the idea of a thesis was to do your own research and discovery, not asking some internet forum to do it for you. You're not going to learn anything unless you do most of the work yourself, start by learning how a modern vending machine works.
     
  11. blueroomelectronics

    AAC Fanatic!

    Jul 22, 2007
    1,758
    98
    An inner tube and a banana.
     
  12. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
    Thats what I used.
     
  13. gootee

    Senior Member

    Apr 24, 2007
    447
    50
    Hire someone to sit in a metal box and exchange rice for money? They could also guard the unsold rice, and the money already collected.

    Hint: Randomly occasionally dispense canned ham, chicken, or beans, to entice people to gamble at your rice machine.

    Idea: Invent a machine that could store dried rice (and maybe water) but could quickly dispense one to four servings of perfectly-cooked hot, steaming rice on demand.

    Seriously, though, why not package the rice in containers that are sized like soft-drink cans and use existing vending machines?

    But shouldn't a "thesis" be about something that has not been done before?
     
  14. wayneh

    Expert

    Sep 9, 2010
    12,103
    3,038
    That's actually a brilliant idea. Look how much success there has been with the single-serve, made-to-order coffee machines now in every office in the US. Offer several different flavors and away you go. Yes, I know, you can buy Ramen packets for less than 10¢ apiece, but you have to "cook" those.
     
  15. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
    I already started building it!

    I have my coffee maker taken apart to heat the water, and dispense into the cup-o-noodle styrofoam type rice container, uses a simple flow meter to measure the proper amount of hot water. The rice dispenser uses weight on a strain-gauge into a comparator to drop the proper weight of dry rice into the cup of water.

    The cup travels along a belt stopped at each station by an electronic-eye. After each step is done, it advances to the next station.

    Only problem Im having now is at the end, it throws boiling water and rice all over the customer.. So I better fix that problem or get REAL cheap insurance ;)
     
  16. gootee

    Senior Member

    Apr 24, 2007
    447
    50
    Maybe something like a fractional distillation tower, but have steam shooting up from the bottom and dry rice falling in from the top. OK, never mind that. But steam would cook rice faster than boiling water.

    Or, just have the machine heat vacuum-packed containers of already-cooked rice and then dispense them.

    Or maybe it would be cooler to have an air-powered rice "machine gun" that shot the dry rice, one grain at a time, through an extremely-hot tightly-focused "just right" jet of steam, and straight out of the machine and directly into the consumer's mouth. They could purchase it in units of seconds and could then control the "fire" button to perfectly cook and dispense bursts at, say, 50 grains per second.

    Wow. Must be time for me to get some sleep.
     
    Last edited: Oct 15, 2010
  17. ke5nnt

    Active Member

    Mar 1, 2009
    384
    15
    I laughed a lot at that, and I woke my wife up. Thanks for that.

    Oh and... I present to you, Rice Vending machines in Japan:
    [​IMG]http://en.wikipedia.org/wiki/File:Rice_vending_machine.jpg
    [​IMG]
     
    Last edited: Oct 15, 2010
  18. wayneh

    Expert

    Sep 9, 2010
    12,103
    3,038
    Hah! Figures the Japanese would be the source of this. I remember being in the Tokyo airport once, in the United lounge, where they had a beer pouring machine. You'd place your glass down, and it would tip in gently and dispense the perfectly poured glass of beer. I regret that I could only test it 3 or 4 times before I had to catch my next flight.
     
  19. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
    And you were the pilot right? ;)
     
Loading...