P09321 Detailed Design Review Mechanical Systems

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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

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

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

DISPENSING PROCESS

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.

REFILLING PROCESS

Flip Ramp to gain access to cylinder slots

TRANSPORTATION

*note: dispenser is turned upside down

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.

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