Automated Fiber Placement Tape Control Module Lateral Adjustment

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Solution Overview

Problem

Current automated fiber placement (AFP) machines have limitations in productivity, requiring additional tape supplies to increase laydown rate, which complicates the head and reduces flexibility due to difficulties in steering a larger head.

Innovation Solution

The method involves adjusting the lateral position of tape control modules automatically according to preprogrammed instructions, allowing for staggered tape courses and dynamic adjustment of tape positions to increase laydown efficiency and adapt to complex contours.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If additional tape supplies are added to increase laydown rate, then productivity is improved, but device complexity increases and flexibility is reduced

Engineering Contradiction:
Improvelaydown rateVSAvoidhead complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements dynamically adjustable tape control modules that can laterally shift their positions during operation. This dynamic capability allows a fixed number of modules to achieve variable bandwidth output, eliminating the need for additional fixed tape supplies while maintaining high laydown rates. The modules can adapt their configuration in real-time to match part geometry requirements.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The tape application head is divided into multiple independently controllable tape control modules, each capable of lateral adjustment. This segmentation allows flexible reconfiguration of the bandwidth without adding overall head complexity, as each module operates semi-independently and can be positioned optimally for different part geometries.

Inventive Principle:
Principle #1Segmentation

2Productivity

If additional tape supplies are added to increase laydown rate, then productivity is improved, but ease of operation is reduced due to steering difficulties

Engineering Contradiction:
Improvelaydown rateVSAvoidsteering capability
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

Each tape control module is equipped with lateral adjustment mechanisms that enable dynamic repositioning during the laydown process. This dynamic capability allows the head to be steered more easily by adjusting individual module positions rather than moving the entire large head assembly, significantly improving ease of operation while maintaining high productivity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

By segmenting the head into independently adjustable modules, the steering operation is simplified from moving a single large mass to adjusting smaller, lighter modules individually or in groups, reducing the mechanical burden and improving operational ease.

Inventive Principle:
Principle #1Segmentation

3Productivity

If head size is increased to accommodate more tape supplies, then productivity is improved, but adaptability is reduced

Engineering Contradiction:
Improvelaydown rateVSAvoidflexibility
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent employs dynamically reconfigurable tape control modules that can change their lateral positions during operation. This dynamic adaptability allows a compact head design to achieve variable bandwidth output, maintaining productivity while improving adaptability to different part geometries and contours.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the operational parameters of the tape control modules, specifically their lateral positions, to adapt to different part requirements. This parameter adjustment capability allows a single head configuration to perform multiple functions across different applications, enhancing versatility without increasing head size.

Inventive Principle:
Principle #35Parameter changes

4Productivity

If head size is increased to accommodate more tape supplies, then productivity is improved, but device complexity is reduced

Engineering Contradiction:
Improvelaydown rateVSAvoidhead complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The head is segmented into modular tape control units that can be independently controlled and adjusted. This modular segmentation allows the system to achieve high productivity through coordinated operation of multiple simple units rather than through a single complex large-scale mechanism, effectively reducing overall device complexity while maintaining high laydown rates.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS8986482B2Method and apparatus for producing composite structures
Publication Date: 2015.03.24 THE BOEING CO
  • US8986482B2 patent drawing
  • US8986482B2 patent drawing
  • US8986482B2 patent drawing

AI summary

A composite part is formed by a composite tape application machine that lays up a plurality of tapes on a substrate. The lateral position of the tapes may be adjusted as the tapes are being laid up.