the can crusher
DESCRIPTION
The Can Crusher . Group 12 Stanley Andrews Brandon Jefferson . Motivation . Wanted to incorporate more electrical and software design into the idea of the “Can Crusher” Use pneumatic cylinders (3 pneumatic cylinders in this project) - PowerPoint PPT PresentationTRANSCRIPT
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The Can Crusher Group 12 Stanley Andrews Brandon Jefferson
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Motivation
•Wanted to incorporate more electrical and software design into the idea of the “Can Crusher”
•Use pneumatic cylinders (3 pneumatic cylinders in this project)
•Thought it would be something different from previous senior design projects
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Objectives• Step 1: Can or water bottle is placed into the trash can. Can/Water bottle enters
hopper and waits for it to be identified by the optical and reflective sensor. • Step 2: Double acting cylinder pushes the object and sends it to the can crusher . • Step 3: Sorter determines route of the object based on feedback from the sensors. • Step 4: If object is a water bottle, it will be routed towards a push cylinder and
crushed• Step 5: If the object is an aluminum can, it will be routed towards a push cylinder
and crushed• Step 6: Push cylinder crushes the aluminum cans and water bottles and sends
remains to the storage bin• Step 7: Process continues until storage sensor alerts operator that storage bin is
90% filled.• Step 8: Once storage reaches 90%. Can crusher goes into “Stop” mode. Items from
storage bin, can then be removed.
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Features• Fully automatic Can Crusher and Sorter • Detect when an object is placed in the hopper• Be able to distinguish between an aluminum can and a water
bottle • Sort the water bottle into a separate storage bin from the
aluminum cans• Detect when the storage bins are 90% full • Will have three different modes “Standby”, “Operational
(Go)”, “Stop”
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Hopper
Full view of the Hopper Inside the Hopper
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Hopper
• Where the bottle and cans will be placed • Be able to hold 8 FL oz. water bottle and
12oz. aluminum cans • Two sensors are mounted to detect the object
inside the hopper
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Sensors•Parallax Ultrasonic Sensor•Reflective Optical Sensor
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Parallax Ultrasonic Sensor
• Part a) Sensor is sending a ultrasonic pulse but object is outside of operating distance
• Part b) Sensor facing object at a angle. Pulse is reflected at another angle
• Part c) Sensor is facing object on level plane but object is too small. Will not reflect transmitted signal
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Parallax Ultrasonic Sensor
PING Ultrasonic SensorDetector Type UltrasonicDimensions 16 x 46 x
22(mm)Peaking Operating distance
2(cm)-3 (m)
Supply Current 30 mAVoltage 5 V
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Reflective Optical SensorBanner SM2A312LVDetector Type
Retro-reflective
Dimensions 66 x 12.2 x 30.7 (mm)
Peak operating distance
50mm – 2m
Output current
Minimum of 5 mA
Voltage 24- 240 V AC
TCRT5000 Reflective Optical Sensor Detector type Phototransistor Dimensions 10.2 x 5.8 x
7(mm)Peak operating distance
2.5 mm
Output current 1 mAEmitter Wavelength
950 nm
Voltage 5 V
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Reflective Optical Sensor• Get the best results (peak
operating distance) at 2.5 mm• One of the challenges will be to
get it close enough to the object stored in the “hopper”
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Aluminum Cans/ Water bottles
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Terms of Service •We ask that all contents are empty •All objects must be placed horizontally in the hopper•By default system will be in “standby mode”, once an
object is placed inside, the system will go into operational mode
• If storage bin is full no objects will be crushed.
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Design OverviewHopper
Sensors
Pneumatic cylinder
Can Crusher
Sorter
Storage bin
Hopper
Sensors
Pneumatic cylinder
Can Crusher
Sorter
Storage bin
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Sorter• The idea is called the “Swinging lid”
• Uses a pneumatic cylinder to be able to “swing” the lid and alter the objects path
• Routes Aluminum Cans to proper bin
• Routes Water bottles to proper bin
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Motors/ Air CompressorElectric motors Air Compressor
Pros • Uses Standard Outlet • Option to convert AC to DC • Very Compact and small to
maneuver and place anywhereCons• Most motors only have one speed• No way to speed up or slow down
the project• Very Expenses for high power
motors
Pros• Uses a Standard Outlet• Able to adjust the air pressure • Ability to control the speed of the motor by
the PSI• Option to convert AC to DC• Not to expensive economy for the budget• Can use air solenoid valves that can control
of a multiple operated air pressure components
Cons• Tank will have to be refilled when low on air • Will need multiple air hoses• Very big hard and to hide and maneuver • Very loud when filling up the tank
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Air Compressor
Horsepower (HP) 0.33 HP
Tank Capacity (Gallons) 2.0 Gal
Tank Type Portable
Voltage 120 V
Amps (Amps) 2.0 A
Price $99.99
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Air Compressor DeWalt
Horsepower (HP) 1.6 HP
Tank Capacity (Gallons)
4.5 gal
Tank Type Portable
Voltage 120 V
Amps (Amps) 15.0 A
Max Pressure 200 PSI
Price Free
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Pneumatic cylinders•Two Mini cylinder •Double Acting Cylinder (can crusher)
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Cylinders Kick-Door
Sorter
Can Crusher
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Kevinkrusher 11.0
KevinKrusher II.0
Chamber Length 6 1/2" minimum
PSI 60 -120
Cylinder Type Double action
Mounted Vertical or Horizontal
Price $157.00
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Can Crusher
• Double Action Stroke Pneumatic Cylinder
• Max Pressure: 1.0 Mpa• Diameter: 8.5mm (Approx.)• Thread Rod Diameter: 9mm
(Approx.)• Size: 4.5 x 4.5 x 32cm• Price $38.98
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Mini Cylinder
• Double Action• Max Pressure: 1.0 Mpa• Diameter: 1- 1/16”• Cylinder Type: Stainless Steel • Rod Thread Length : 0.50 inches• Price: $37.50 (each)
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Air Solenoid Type: 2 Position 5 way
Voltage: 12V DC
Power 2.5W
Current .208 AmpsValve Fittings: 1/8" BSPT
(British standard pipe tapered)
Total Needed 3
Price $ 11.39 (each)
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Micro ControllerATMega 328p
Operating Voltage 5 VInput Voltage (recommended)
7-12 V
Input Voltage (limits)
6-20 V
Digital I/O Pins 14Analog Input Pins 6DC Current per I/O 40 mADC Current for 3.3V Pin
50 mA
Flash Memory 32 KBClock Speed 16
•Solenoids connected to 3 digital pins ( 8, 9, 10
•Ultrasonic Sensor & TCRT5000 connected to 4 analog pins (A0, A2, A3, A4)
•LEDS connected to 3 digital pins (5-7)
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Software code•Hopper (object detection)•TCRT5000•Ultrasonic Sensor•Loop
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Automatic Can Crusher Schematic
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Printed Circuit Board
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Storage Bins
• Two storage bins • Aluminum Can and Water Bottle • Each bin will have Parallax
Ultrasonic sensor • Once storage reaches 90%. Can
crusher goes into “Stop” mode
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EnclosureTrash Can Cabinet
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LEDs
Green• Operational mode
Yellow• Standby Mode• Default
Red• Stop Mode
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LED Schematic
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Power Supply
120 AC
Transformer AC/DC• Fuse• Switch (On/Off)
Bridge Rectifier
+- 12V regulator
• +-5V regulator
12 V DC• Air Solenoid (3)
5 V DC• Microcontroller
• LEDs• Sensors
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Automatic Can Crusher Schematic
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Work DistributionStanley Andrews Brandon Jefferson
Sensors Power SupplySolenoids/ Cylinders MicrocontrollerPrinted Circuit Board Printed Circuit Board
Software Implementation Software Implementation
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BudgetNomenclature Cost (each) Number Total Cost
Optical Sensor $29.99 3 95.35
TCRT5000 Reflective Sensor
$1.00 10 $10.00
Double Acting Cylinder
$37.50 2 $38.46
Mini Cylinder $16.47 1 $21.61
Air Solenoid $11.39 4 $57.54
Air Valve Fittings $1.48 14 $26.63
Air Valve Mufflers $1.19 8 $15.05
LEDs $1.99-$3.50 5 $20.00
Development Board $12 1 $14.78
Air Compressor $99.99 1 Free
PCB $65.00 1 $65.00
Air Regulator $19.99 1 21.18
Transfomer $30.00 1 $30.00
Miscellaneous $140.00
Total Cost $1040 $554.42
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Progression
Overall
Testing
Prototype
Design
Research
0% 20% 40% 60% 80% 100%
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Issues• Ambient light affecting the
read out of the TCRT5000• Manipulating the
microcontroller to distinguish between a water bottle and aluminum can
• Water bottles not crushing• Placement of how the
object falls into the hopper affected if it was detected or not
•TCRT5000•Software Design•Water bottles•Ultrasonic Sensor
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Questions