Manual Paper Punch

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Manual Paper Punch

• By
• Abhay Vijayan
• Araby Abdel Rahman
• Chirag Modi

2
Acquiring Information

• The information about the paper punch was
  obtained from the following sources
• Market Survey (Internet)
• Customer Interviews (Questionnaire)

3
Market Information Analysis
4
Customer Information Analysis
5
Matrix analysis
6
Problem statement

• Develop a light touch 2 / 3 holes combo
  manual paper punch that can punch a minimum of
  30 papers, on which different paper sizes can be
  easily centered and also the margins can be
  adjusted.

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Functional Requirements

• Functionality Flexibility
• Use minimum force to punch. Punch two and three
  holes.
• Clean cut. Punch different sizes of
  paper.
• Center the paper accurately.
• Punch up to 30 papers in one pass. Safety
• Prevent paper slipping.
• Ergonomically Prevent entry of fingers
  between the
• Grip on handle punch bit and the base.
• Maintainability / Reliability Esteem Functions
• Have long life . Presentable as an office
  item.
• Have durable handle. Available in variety of
  colors.
• Collect and dispose paper chips easily.

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Fast Diagram
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Functional Hierarchy

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Physical Hierarchy
Paper Punch
Shearing Mechanism
Paper Pan
Paper Adjusting Mechanism
Punch Base
Bracket Pin Assembly
Guide Ruler
Bit Bracket
Springs
Handle
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Axiomatic Design

• FR0 Punch Paper
• DP0 Paper Punch
•  
• FR1 Align the Paper DP1 Paper Adjusting
  Mechanism
• FR2 Shear the Paper DP2 Shearing Mechanism
• FR3 Collect the chips DP3 Paper pan
•  Design matrix
•   FR1 x 0 0 DP1
• FR2 x x 0 DP2
• FR3 0 0 x DP3
• Which is decoupled

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Axiomatic Design (Cont)

• FR11 Prevent Paper Slipping DP11 Punch Base
• FR12 Adjust Depth Margin DP12 Bracket Pin
  Assembly
• FR13 Center the Paper DP13 Guide Ruler
•  Design matrix
•   FR11 x 0 0 DP11
• FR12 x x 0 DP12
• FR13 x x x DP13
• Which is decoupled

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Axiomatic Design (Cont)

• FR21 Press the Handle DP21 Handle
• FR22 Induce Linear Motion DP22 Bit Bracket
• FR23 Return the Handle Back DP23 Springs
•  Design matrix
•   FR21 x 0 0 DP21
• FR22 x x 0 DP22
• FR23 x x x DP23
• Which is decoupled

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Assembly Of Punch
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Concept For Bracket Adjustment
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Pugh Method for Functionality/Manufacturability

• S1, 2, - 0
• Functionality Manufacturability

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Concepts for Bracket Adjustment
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Concept For Minimum Force to Punch
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Pugh Method for Functionality/Manufacturability

• S1, 2, - 0
• Functionality Manufacturability

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Concepts For Minimum Force
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Concept For Centering
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Pugh Method for Functionality/Manufacturability

• S1, 2, - 0
• Functionality Manufacturability

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Concepts For Centering
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Concept For Margin Adjustment
D
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Initial Selection of Concepts

• Selecting Concept Combination
• (A1,B1,C1)
• (A1,B2,C1)
• (A2,B1,C1)
• (A2,B2,C1)

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Concept 1-Parts
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Alternative (1) DFM

•  

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Alternative (1) DFA
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Concept 2 Parts
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Alternative (2) DFM
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Alternative (2) DFA
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Concept-3 Parts
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Alternative (3) DFM
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Alternative (3) DFA
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Concept 4 Parts
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Alternative (4) DFM
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Alternative (4) DFA
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Selection