Transfer Roller Vibration Control for Lacquer Application
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Solution Overview
Problem
Existing lacquer transfer devices for aerodynamic surfaces, such as aircraft wings, experience vibrations at the unsupported end of the transfer roller due to one-end support, leading to suboptimal lacquer transfer quality and longer roller change times.
Innovation Solution
The introduction of a support device at the second end of the rim, perpendicular to the work surface, provides additional stability and reduces vibrations, while allowing for quick and easy removal of the transfer roller, and the device is configured for mobile operation with a UV-light hardening unit for immediate lacquer hardening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the rim is supported at the first end only, then quick change of the transfer roller is enabled, but vibration of the transfer roller at the unsupported second end occurs
Solution Approach 1:
The support function is segmented into two independent locations: the first end supported by a fixed mounting for stability, and the second end supported by a removable support device for quick changes. This segmentation allows each end to serve its specific function without compromising the other.
Solution Approach 2:
The support device at the second end is designed to be removable, providing dynamic adaptability. During operation, the support device is engaged to stabilize the rim; during roller changes, the support device is removed to enable quick replacement. This dynamic configuration resolves the contradiction between stability and ease of change.
2Stability of the object's composition
If the rim is supported at both ends, then vibration is reduced, but roller change time increases
Solution Approach 1:
The support system is divided into two independent support locations (first end and second end) with different support characteristics. The first end uses fixed mounting while the second end uses a removable support device, allowing selective engagement of support functions.
Solution Approach 2:
The support device at the second end transitions between engaged and disengaged states. When engaged, it provides stability to reduce vibration; when disengaged, it allows rapid roller removal and replacement. This dynamic state change enables the system to adapt to different operational requirements.
3Stability of the object's composition
If a fixed mounting is used at the second end, then stability is improved, but device complexity increases
Solution Approach 1:
The support device at the second end is designed as a simple, removable component rather than a permanent fixed mounting. This simpler, temporarily-used support structure reduces overall device complexity while still providing the necessary stability during operation and facilitating quick changes when removed.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances lacquer transfer quality by minimizing vibrations and enabling rapid roller changes, while maintaining efficient lacquer application and hardening on aircraft surfaces.
Implementation Method 1
a hardening unit that might be connected directly or indirectly to the frame and that might be formed as a UV-light unit configured for hardening the lacquer in a contactless way by emitting UV-light
Data Source
AI summary
A device for lacquer transfer is disclosed having a frame, a transfer roller with a circumferential lateral wall, and a nozzle for dispensing lacquer. The nozzle is arranged contactless to or in direct contact with the outside contact surface of the lateral wall for dispensing lacquer into respective depressions in the lateral wall while the transfer roller is rotated about the axis of rotation. The transfer roller is configured to roll with the outside contact surface on a work surface of a work piece for transferring the lacquer from the depressions to the work surface of the work piece. The transfer roller includes a rim and a tire, wherein the rim is mounted to the frame rotatably about the axis of rotation by the first end and extends between a first end and a second end along the axis of rotation, wherein the tire is mounted on the rim and includes the lateral wall.