wrap n’ roll automatic silverware roller team there is no spoon patrick goldrick joel mckoy george...
TRANSCRIPT
Wrap N’ RollAutomatic Silverware Roller
Team There is No Spoon Patrick Goldrick Joel McKoy George Niou Ryan Patterson Lori Reinert
Agenda
Review of Problem Statement Proposed Solution Subsystems Engineering Analysis Prototype Review and Demonstration Conclusion
Problem Statement
Problem statement: Restaurants spend a great deal of time and money to have workers complete the tedious process of manually rolling silverware into a napkin No product available to automate process
Proposed solution: Develop a device that automatically groups one napkin, fork, and knife without use of an employee.
Proposed Solution: “Wrap N’ Roll”
Folding Arm Subsystem
Napkin Box Subsystem Roller & Track
Subsystem
Napkin Grabber Subsystem
Utensil Container Subsystem
Napkin Platform Subsystem
Key features Elevated corner
supported by spring Friction on back surface Integrated turn-around
switch
Roller & Track Subsystem
Key features 5’ steel track Sushi roller Controlled by
brushless DC motor Stainless steel rods
to support sushi roller when extended
Roller & Track (cont’d)
Napkin Grabber Subsystem
Key features Pivoting arms Rubber grippers Spring-activated
locking mechanism
Mounted to sushi roller platform No additional track
or activation device needed
Napkin Grabber (cont’d)
Napkin grabber reset by acrylic piece at opposite end
Utensil Container Subsystem
Key features Hinged in front to
add utensils Can tilt forward
when loading Ejection
mechanism: Prototype
Contoured to fit shape of silverware
Knives must have relatively flat handle
Utensil Container Subsystem (cont’d)
Utensil Release
Napkin Folder Subsystem
Key features Metal bars
pivot on an angle
Triggered by trolley
Napkin Folder Subsystem (cont’d)
Engineering Analysis
T = 1.68 N-m = 14.9 lb-in T = F (66.2 N) * r (0.0254 m)
15 rad/s = 143.3 RPM v (0.38 m/s) / r (.0254 m)
P = 25.2 W P = T (1.68 N-m) * (15 rad/s)
Selected motor: Brushless DC Motor
Prototype
Video Live demonstration
Conclusions
Design capable of rolling one fork and one knife into a napkin
Main subsystems include Napkin platform Trolley and track Napkin grabber Utensil containers Napkin folders
Main difference between prototype and design was type of material