Automated Edge Strip Applicator for Structural Components

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Solution Overview

Problem

Current methods for applying material strips over the edges of structures, such as stringers, are labor-intensive, prone to inaccuracies, and result in increased labor costs and production time, often leading to wrinkling issues due to human error and the need for multiple personnel.

Innovation Solution

An automated apparatus and method utilizing a computer-controlled end-effector with a spool, guide roller, cutter, compaction shoe, and conformer, which includes chamfered discs and actuators to precisely place, shape, and compact material strips along the edges of structures, allowing for single-pass application and reducing the need for manual labor.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If hand layup techniques are used to apply material strips, then flexibility and simplicity are maintained, but labor intensity and time consumption increase significantly

Engineering Contradiction:
ImprovesimplicityVSAvoidproduction rate
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent replaces the manual mechanical hand layup system with an automated material placement system that uses a dispensing apparatus to apply adhesive and lay up material strips automatically. This substitution eliminates the need for manual handling while maintaining the core function of material strip application, thereby resolving the contradiction between operational simplicity and production rate.

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

2Device complexity

If hand layup techniques are used, then equipment complexity is minimized, but manufacturing precision and accuracy deteriorate due to human error

Engineering Contradiction:
Improveequipment complexityVSAvoidmaterial placement accuracy
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The automated material placement system replaces manual operations with computer-controlled dispensing and placement mechanisms. This substitution eliminates human error in material placement while using relatively simple equipment consisting of a dispensing apparatus, adhesive application system, and basic positioning mechanisms, thus resolving the contradiction between device complexity and manufacturing precision.

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

3Reliability

If multiple personnel are used for hand layup, then material strip handling and tracking are managed, but labor costs and coordination requirements increase

Engineering Contradiction:
Improvematerial tracking controlVSAvoidpersonnel coordination
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The automated material placement system performs material tracking and placement control automatically through its computer-controlled dispensing mechanism. The system self-regulates the material strip application process without requiring multiple personnel for tracking and coordination, thereby resolving the contradiction between reliability of material tracking and device complexity of personnel coordination.

Inventive Principle:
Principle #25Self-service

4Adaptability or versatility

If hand layup is used for material strip application, then adaptability to different structures is maintained, but production time and labor intensity increase

Engineering Contradiction:
Improvestructure adaptabilityVSAvoidproduction time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The automated material placement system incorporates adjustable and reconfigurable components that allow it to adapt to different structural configurations. The dispensing apparatus can be repositioned and reprogrammed for various material strip application scenarios, enabling the system to maintain adaptability while operating at high speed, thus resolving the contradiction between structure adaptability and production time.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3120991B1Method and apparatus for applying a strip of material over an edge on a structure
Publication Date: 2021.01.13 THE BOEING CO
  • EP3120991B1 patent drawingFigure 1
  • EP3120991B1 patent drawingFigure 2
  • EP3120991B1 patent drawingFigure 3~4A

AI summary

An apparatus (50) automatically places, forms and compacts an adhesive strip on an edge (58) of a structure (54)in a single pass.