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Wrap N’ Roll Automatic 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.

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wrap n roll automatic silverware roller

Wrap N’ RollAutomatic Silverware Roller

Team There is No Spoon

  • Patrick Goldrick
  • Joel McKoy
  • George Niou
  • Ryan Patterson
  • Lori Reinert
agenda
Agenda
  • Review of Problem Statement
  • Proposed Solution
  • Subsystems
  • Engineering Analysis
  • Prototype Review and Demonstration
  • Conclusion
problem statement
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
Proposed Solution: “Wrap N’ Roll”

Utensil Container Subsystem

Napkin Box Subsystem

Roller & Track Subsystem

Napkin Grabber Subsystem

Folding Arm Subsystem

napkin platform subsystem
Napkin Platform Subsystem
  • Key features
    • Elevated corner supported by spring
    • Friction on back surface
    • Integrated turn-around switch
roller track subsystem
Roller & Track Subsystem
  • Key features
    • 5’ steel track
    • Sushi roller
    • Controlled by brushless DC motor
    • Stainless steel rods to support sushi roller when extended
napkin grabber subsystem
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 (cont’d)
  • Napkin grabber reset by acrylic piece at opposite end
utensil container subsystem
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
napkin folder subsystem
Napkin Folder Subsystem
  • Key features
    • Metal bars pivot on an angle
    • Triggered by trolley
engineering analysis
Engineering Analysis
  • T = 1.68 N-m = 14.9 lb-in
    • T = F (66.2 N) * r (0.0254 m)
  • w = 15 rad/s = 143.3 RPM
    • w = v (0.38 m/s) / r (.0254 m)
  • P = 25.2 W
    • P = T (1.68 N-m) * w (15 rad/s)
  • Selected motor: Brushless DC Motor
prototype
Prototype
  • Video
  • Live demonstration
conclusions
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