Curved Surface Coating via Remote Axis Revolution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The spin-coating method struggles to achieve uniform resin film thickness on non-flat, curved surfaces, such as spherical surfaces, due to uneven coating-substance-moving forces.
Innovation Solution
A method involving a dispensing step followed by a revolution step, where the object with the coating is revolved about a remote axis, and optionally a preliminary spread and removal step to adjust the coating range and correct thickness variations, using a coating substance spreading apparatus with a revolution section and a rotation section to control the coating force intensity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If spin-coating method is used on curved surfaces, then coating process can be performed, but coating thickness uniformity deteriorates
Solution Approach 1:
The invention transitions from static spin-coating to dynamic revolution coating. The coating target is revolved around a remote revolution axis, creating dynamic motion that enables uniform coating distribution on curved surfaces. The revolution motion allows the coating substance to be evenly distributed across the entire curved surface area, resolving the uniformity issue while maintaining process simplicity.
Solution Approach 2:
The invention introduces a new dimensional approach by revolving the coating target around a remote axis rather than rotating around its own center axis. This dimensional change in the revolution path creates uniform coating force distribution across curved surfaces, solving the thickness uniformity problem while keeping the coating process applicable to various curved geometries.
2Ease of manufacture
If coating substance is dispensed onto curved surface, then coating can be applied, but thickness variation increases due to uneven coating-substance-moving forces
Solution Approach 1:
By implementing revolution motion around a remote axis, the coating substance experiences dynamic forces that are uniformly distributed across the curved surface. This dynamic approach creates consistent coating-substance-moving forces throughout the coating process, eliminating thickness variations while maintaining ease of coating application.
Solution Approach 2:
The invention changes the motion parameter from simple rotation to revolution around a remote axis. This parameter change in the motion trajectory creates uniform coating force intensity distribution, ensuring consistent coating thickness across the curved surface while preserving the simplicity of the coating application process.
3Manufacturing precision
If revolution step is performed with remote revolution axis, then coating thickness uniformity improves, but device complexity increases
Solution Approach 1:
The dynamic revolution mechanism achieves uniform coating thickness through motion-based force distribution. While the motion mechanism adds some complexity, it eliminates the need for complex coating head designs or multiple coating stations, providing a relatively simple overall system that delivers precise uniform coating results.
Solution Approach 2:
By changing to a revolution-based system with a remote axis, the invention achieves uniform coating distribution across curved surfaces. This dimensional approach simplifies the coating head design and reduces the need for complex positioning systems, providing a balance between device complexity and coating precision.
4Ease of manufacture
If coating range is limited on curved surface, then coating process is simple, but coating coverage is insufficient
Solution Approach 1:
The revolution motion dynamically expands the effective coating area by continuously bringing different portions of the curved surface into the coating zone. This dynamic approach maintains process simplicity while achieving complete surface coverage, as the revolution motion naturally progresses the coating across the entire target area over time.
Solution Approach 2:
The coating substance is dispensed in advance onto the curved surface during the revolution process. This preliminary action ensures that the entire surface area receives coating material, and the subsequent revolution motion distributes it uniformly. This approach maintains process simplicity while achieving comprehensive coverage of the curved surface.
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 approach ensures a uniform coating thickness on curved surfaces by making the coating-substance-moving force intensity proportional to the distance from the revolution axis, reducing thickness variations and allowing for effective reuse of excess coating substance.
Implementation Method 1
a coating-substance-moving force that acts on each portion of the coating target surface can be made close to an intensity proportional to a distance from the revolution axis
Data Source
AI summary
A method for manufacturing a coated object and a coating substance spreading apparatus, which coat, as uniformly as possible, a coating substance on a curved coating target surface are provided. A method for manufacturing a coated object, the coated object being an object coated with a coating substance on a coating target surface Tf of the object T, the coating target surface Tf having a curved surface, includes dispensing the coating substance onto the coating target surface Tf; and revolving the object T, having the coating substance dispensed onto the coating target surface Tf, about a revolution axis 13a located remotely from the object T. A coating substance spreading apparatus 1 includes a revolution section 10 configured to revolve an object T about a revolution axis 13a located remotely from the object T. With these, a coating-substance-moving force that acts on each portion of the coating target surface Tf can be made close to an intensity proportional to a distance from the revolution axis 13a, and it is possible to suppress thickness differences or variation of the coating substance coated on the coating target surface Tf.