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P09321 DETAILED DESIGN REVIEWMECHANICAL SYSTEMSFelix FelizMatthew JonesMichael BoquardRebecca JaivenJustin ZagorskiShuaib Mansoori
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OVERVIEW1. Medicine dispenser2. Purpose3. Design
1. Features4. Dispensing5. Refilling6. Transport7. Maintenance8. Manufacturing
1. BOM2. Sheet Layout including all parts
9. Engineering Analysis10. Issues11. Appendix
1. 2-D2. Engineering Analysis
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INTRO – PROJECT DESCRIPTIONo Produce a robust prototype that dispenses
medication on a time-bases to patients in a secure and accountable environment.
o Allow to dispense a week’s supply of up to 6 different pills for two patients accessed twice daily.
o Reliable and compact electro-mechanical dispensing system that can be controlled by a common laptop.
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INTRO – PROJECT DESCRIPTION
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User inputs finger print information
Laptop communicates
information to the dispenser
Dispenser produces medicine
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MEDICINE DISPENSER - LAYOUTLid
Cylinder Holder/ Latch Assy
Support Rail
Ramp (Collapsible)
Empty Return Lid
Leg (Collapsible)
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DISPENSING PROCESSUser
Approaches the dispenser
User places finger on finger
print reader
Correct nitinol latch is actuated and
medicine falls with the use of gravity
Medicine cylinder rolls down the dispensing
ramp and passes optical sensors.
User takes medicine
Deposit empty medicine cylinder
into return slot at the rear of the dispenser
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DISPENSING PROCESS
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DISPENSING PROCESS
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REFILLING PROCESSRetrieve empty dispenser from
user
At pharmacy, unload all empty
medicine cylinders from the return slot
Turn the dispenser over, release legs and flip up ramp to expose nitinol latch assembly.
Plug in the dispenser to the main pharmacy
computer and scan finger print or pin
Sort required dosage into cartridges
Place individual cartridges into properly
allocated spots with guidance of the
software
Unplug dispenser, close ramp and
legs, and prepare for delivery.
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REFILLING PROCESS
Flip Ramp to gain access to cylinder slots
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TRANSPORTATION
*note: dispenser is turned upside down
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TRANSPORTATION
Collapsed Dispenser Cross-section View
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MAINTENANCE For maintenance
remove the 4 mounting screws located on the sides of the dispenser and lift the top.
There is a notch in the front of the housing at the center which can be used to help lift the lid.
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MANUFACTURING: MECHANICAL BOM
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MANUFACTURING: HOUSING SHEET METAL LAYOUT
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MANUFACTURING: ASSEMBLY ORDER Main housing Inner mounting rails for PCB Install PCB and nitinol latch assembly Mount Top Mount Empty return door Mount Extension/ Ramp Mount legs
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ENGINEERING ANALYSIS1
MN MXX
Y
Z
92.938
18543614
53757136
889610657
1241814179
15939
FEB 8 200912:36:10
NODAL SOLUTION
STEP=1SUB =1TIME=1SEQV (AVG)DMX =.032406SMN =92.938SMX =15939
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ENGINEERING ANALYSIS1
MN
MX
X
YZ
.022941
155.046310.068
465.091620.114
775.137930.159
10851240
1395
JAN 29 200913:38:11
NODAL SOLUTION
STEP=1SUB =1TIME=1SEQV (AVG)DMX =.657E-05SMN =.022941SMX =1395
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ENGINEERING ANALYSIS1
MNMX
X
Y
Z
.124784
2.6985.27
7.84310.416
12.98915.562
18.13520.707
23.28
JAN 23 200915:18:18
NODAL SOLUTION
STEP=1SUB =1TIME=1SEQV (AVG)DMX =.849E-04SMN =.124784SMX =23.28
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ENGINEERING ANALYSIS1
MN
MX
X
Y
Z
.144684
7.17514.205
21.23528.265
35.29542.325
49.35556.386
63.416
FEB 8 200913:08:07
ELEMENT SOLUTION
STEP=1SUB =1TIME=1SEQV (NOAVG)DMX =.227E-04SMN =.144684SMX =63.416
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ISSUES Ramp / Extension clearance Outside leg hinges 180 max Empty return lock Cylinder movement while upside down Empty return clearance Mounting location for sensors Mounting locations for ball & spring latches Edge deflection on 3’ drop Edge guards only protect the main housing
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APPENDIX Force Calculations Total Weight= Aluminum+Pills+Cylinders+Nitinol
+PCB
Aluminum =85.9 in3 = 8.41lb
Pills= .5g*10*33=165g = .363lb
Cylinder=10g *33 = .727lb
Nitinol =15g *33 = 1.09lb
PCB= .5kg *2 = 2.2lb
Total Weight =12.79 lb +Fasteners
Pressure on rails Pills+Cylinder+Nitinol+pcb
Force on legs
Force on corner drop Without rubber edge guards
With rubber edge guards
Pressure on PCB