systems level design review project #10715 1/15/09 rev 01 1
TRANSCRIPT
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Systems Level Design ReviewProject #10715
1/15/09
Rev 01 1
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Helen Jervey (ISE), Project Lead Charles Nicolosi (ME), Chief Engineer Brandon Sbordone (ME) George Kilger (EE) Ian Baker (ME) Ben Bouffard (EE)
Advised by John Kaemmerlen
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Provide background information about the current system at the Culinary Innovation Center
Detail the progress made by the team from RIT
Receive feedback from faculty and Wegmans staff
Discuss the next steps in the process
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Customer NeedsEngineering Specs
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Wegmans is a food market with more than 70 stores in five states
The Culinary Innovation Center, or CIC, provides all premade sauces and marinated meat products to Wegmans stores
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The current factory line requires seven people performing repetitive, injury prone tasks
Injuries have cost Wegmans more than $20,000 in the marinade area since the opening of the CIC
Unreliable labeling technology leads to rework, wasting the time of the employees
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Reallocate direct labor from flipping, labeling◦ Allow employees to move to other areas of the
CIC Reduce ergonomic risks on line Perform all work within safety and quality standards
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Primary◦ Meet AMA, OSHA, USDA and other relevant
standards◦ Maintain integrity of product
Secondary◦ Reallocate direct labor from flipping, aligning◦ Automate or improve flipping, aligning, and
labeling processes◦ Maintain or improve takt time
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◦ Need 1: Product & Process are Safe Need 1.1: Product integrity is maintained Need 1.2: Equipment satisfies USDA Regulations as
well as the AMI Checklist Need 1.3: OSHA Safety requirements are met
Need 1.3A: Remove ergonomic issues and concerns
◦ Need 2: Reallocate Direct Labor Need 2.1: Reallocate direct flipping labor Need 2.2: Reallocate direct alignment labor Need 2.3: Reallocate direct labeling labor
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◦ Need 3: Improve Processing Time Need 3.1: Maintain or decrease takt time Need 3.2: All packages get scanned by the x-ray at desired
belt speed Need 3.3: Control flow to scaling operation. (Control flow-
rate variance) Need 3.3A: Meet x-ray specs of one piece at a time in
machine◦ Need 4: Control orientation and flow-mechanics
Need 4.1: Packages are in the proper orientation Need 4.1A: Label is in proper orientation position relative to
the package Need 4.1B: All packages are centered in the x-ray beam Need 4.1C: Packages are conveyed in single-file
o Need 4.2: Avoid impact on other projects Need 4.2A: Keep allocation of floor space constant
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and Feasibility Analysis
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Constraints◦ Space◦ Feasibility◦ Alignment ◦ Efficiency◦ Mechanical/“Intelligent
”
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System Concept SelectionSystem Concept Selection
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Mechanical Process Allows for basic single file flow Engineered for product inconsistencies Will need future testing for jam concerns Basic frictional analysis shows it is feasible
Concept Concept ImprovementImprovement(Though Testing)(Though Testing)
• Rollers• Belts• Actuated
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Frictional Feasibility AnalysisFrictional Feasibility Analysis
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Mechanical process Reliably performs a uniform flip Handles different package sizes and configurations Handles constant stresses of use Need component life cycle analysis
Concept Concept ImprovementImprovement(Through Testing)(Through Testing)
• Adjustable Tray• Motor Choice• Tray Angle
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Must consistently apply identifyer label Controlled label orientation and position Imaging/sensing system Implementation and modification of current
labelers to fit project Research has found feasible camera systems in
industry
Concept Concept ImprovementImprovement• Professor Meetings• Camera Selection
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Pieces enter in 2 or 3 wide
Adjustable, offset guides
Actuated guides to align
pieces/accelerate alignment process
Proximity/contact sensors to
ensure guide return
Laser sensor for piece(s)
entering guide path
Guide actuates and pushes pieces
to center
Pieces align with belt friction
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Fixed/Adjustable Guides◦ Solid rail◦ Roller guide◦ Belt guide
Powered/Adjustable Guides◦ Solid rail/roller guide◦ Hinge mount for guide◦ Actuator/Actuators◦ Proximity sensors◦ Laser sensors for track
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Piece flows into flip tray
Laser sensor indicates
piece in tray
Stop arm for next piece
Motor/actuator
rotates flip tray
Piece is pushed out of
tray
Sensor indicates no piece in tray
Motor/actuator rotates flip tray
Stop arm retracts
Automated FlipperAutomated Flipper
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Flipper Tray◦ Grated◦ Solid
Stop Arm◦ Actuator◦ Hinge◦ Proximity Sensor(s)
Flipper◦ Motor/Actuator◦ Mounting/Hinges◦ Piece sensor (laser)◦ Proximity sensors (up/down)◦ Product pusher
Fixed Mechanical
Proximity sensor Actuator
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Single piece enters
Vision system identifies package
System outputs θ and
offset (x,y)
Motors align label head based on
output
Laser sensor
(possibly stops belt
and) activates
vision system
Label application
Label head retracts/
Returns to home
(Belt resumes)
Identifier Label ApplicatorIdentifier Label Applicator
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Vision System◦ Laser product sensor◦ Visual comparator system
Camera Comparison logic controller
Label Applicator system◦ X-axis motor◦ Y-axis motor◦ θ motor◦ Label applicator head
Head actuator Labeler Foam presser
◦ Label loader Belt motion controller
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Pieces From
Multivac
Trip Laser
sensor(s)
Guide Returns
Piece leaves beam
Single file flow to flip
Piece enters
flip tray
Piece prox.
sensor trigger
Stop arm
actuates
Tray actuator trigger
Tray rotates down
Trigger push prox.
Piece prox.
Trigger off
Tray rotates
up
Stop arm
retracts
Piece to lower
conveyer
Piece through
x-ray
Piece trips laser
Belt stops
Camera shoots image
Calculates θ, x, y
Labeler assembly offsets
x
Labeler assembly offsets
y
Labeler assembly offsets
θ
Remove label from spool
Label head
actuates down
Label head
retracts
Belt resumes
Guide actuator(s) activate
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Evaluate analyzing methods for the labeling device Gather data on packaging durability Research optimal methods of flipping and aligning Draft circuit designs for controls and sensors Draft schematics for mechanical devices Investigate costs of long lead time devices Physically implement designs Test "first run" designs on product Revise and improve designs
Detailed Design Review: Friday 2/12 (4 weeks)
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