Sheet Attaching Apparatus for Fuel Cell Manufacturing Automation

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Solution Overview

Problem

Conventional methods for attaching sheets in fuel cell manufacturing require manual labor and skilled workers, making the process difficult and labor-intensive.

Innovation Solution

A sheet attaching apparatus and method that includes a supply roll system, a gripping mechanism, a moving mechanism, and a releasing mechanism to automate the attachment of a first sheet onto a second sheet, allowing for easy and skill-free attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual labor is used to attach the first sheet to the second sheet, then the attachment process can be performed with simple equipment, but the process requires skilled workers and is difficult to operate

Engineering Contradiction:
Improveease of sheet attachment operationVSAvoidcomplexity of attachment apparatus
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The attachment apparatus is divided into distinct functional modules: a gripping mechanism for holding the first sheet, a moving mechanism for positioning, and a releasing mechanism for detachment. This segmentation allows each component to perform a specific function, making the overall system easier to operate while maintaining manageable complexity through modular design

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The gripping mechanism acts as an intermediary between the operator and the sheet attachment process. It automatically grasps, positions, and releases the first sheet, eliminating the need for skilled manual manipulation while the system remains relatively simple in structure

Inventive Principle:
Principle #24Intermediary (Mediator)

2Extent of automation

If manual attachment is used, then the equipment required is minimal, but the process requires high skill and cannot be easily automated

Engineering Contradiction:
Improveautomation of sheet attachmentVSAvoidcomplexity of attachment system
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The attachment system performs self-service through the coordinated operation of the gripping mechanism, moving mechanism, and releasing mechanism. The system automatically completes the attachment process without requiring skilled human intervention, achieving a high degree of automation while keeping the overall device complexity relatively low through straightforward mechanical design

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system employs dynamic components that can move and adjust: the gripping mechanism opens and closes to grasp/release sheets, the moving mechanism translates the gripping mechanism to positioning locations, and the releasing mechanism activates at appropriate moments. This dynamic behavior enables automated operation without complex control systems

Inventive Principle:
Principle #15Dynamics

3Productivity

If skilled workers perform the attachment, then the attachment quality can be maintained, but the productivity is limited by manual operation speed

Engineering Contradiction:
Improvesheet attachment speedVSAvoidskill requirement for operation
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The patent replaces the manual mechanical system (skilled worker's hands and skills) with an automated mechanical system consisting of the gripping mechanism, moving mechanism, and releasing mechanism. This substitution increases attachment speed and productivity while eliminating the need for skilled operators, as the automated system performs the task with consistent precision

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS11581552B2Sheet attaching apparatus and method
Publication Date: 2023.02.14 HONDA MOTOR CO LTD
  • US11581552B2 patent drawing
  • US11581552B2 patent drawing
  • US11581552B2 patent drawing

AI summary

A sheet attaching apparatus includes a gripping mechanism that grips one end portion, in a longitudinal direction, of a first sheet that has been drawn out from a first supply roll; a moving mechanism that allows the first sheet to be attached to a second sheet by moving the gripping mechanism to cause the first sheet to approach and contact the second sheet that passes through an attaching portion provided in a feeding path; and a releasing mechanism that releases a grip of the gripping mechanism on the first sheet, after the first sheet has contacted the second sheet.