Transfer Component Deflection for 3D Article Printing
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Solution Overview
Problem
Current methods for printing on three-dimensional articles, such as inkjet printing and transfer processes, face challenges in achieving high-quality labels due to limitations in applying ink to surfaces with varying heights or complex shapes, leading to defects in print quality.
Innovation Solution
The development of apparatuses and methods that involve a transfer component with a deposition device to apply and modify a transfer material, allowing it to conform to the surface of three-dimensional articles, including using mechanisms like vacuum, air jets, or shaped dies to ensure accurate and high-quality transfer of the material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If inkjet printing is used to print directly on three-dimensional articles, then the printing process can be simplified, but the print quality deteriorates due to inability to accurately jet ink on surfaces with varying heights
Solution Approach 1:
The patent introduces a transfer component as an intermediary between the inkjet print head and the three-dimensional article. The print head deposits ink on the flat transfer component, which then transfers the ink to the complex surface of the article through contact. This mediator allows the print head to work on a flat, accessible surface while the transfer component adapts to the complex geometry of the target article, resolving the contradiction between process simplicity and print quality.
Solution Approach 2:
The invention separates the printing operation from the three-dimensional surface in another dimension. The print head operates in a two-dimensional plane on the transfer component, while the transfer component itself can be configured in three-dimensional space to match the article's surface. This dimensional separation allows high-precision inkjet printing to be performed on a flat surface while still achieving coverage of complex three-dimensional surfaces.
2Manufacturing precision
If transfer processes are used to apply ink to three-dimensional articles, then print quality can be improved, but the process becomes less effective for articles with complex three-dimensional shapes and surface features
Solution Approach 1:
The transfer component is designed to be flexible and adaptable rather than rigid. It can dynamically conform to different three-dimensional shapes and surface features through mechanisms such as vacuum adherence, elastic deformation, or mechanical compliance. This dynamic adaptability allows the same transfer process to effectively handle various complex geometries, resolving the contradiction between maintaining print quality and adapting to diverse shapes.
3Manufacturing precision
If the transfer component deflects on both sides, then the transfer material can be accurately applied to complex surfaces, but the device complexity increases
Solution Approach 1:
The transfer component utilizes flexible shells or thin films that can deflect and conform to complex surfaces on both sides. These flexible structures inherently adapt to three-dimensional geometries without requiring complex mechanical actuation systems. The flexibility of the shell or film allows it to naturally follow the contours of the article surface, achieving high transfer accuracy while keeping the device mechanism relatively simple.
Data Source
AI summary
Apparatuses and methods for applying a transfer material onto the surface of an article are disclosed, including apparatuses and methods of transfer printing on and/or decorating three-dimensional articles, as well as the articles printed and/or decorated thereby. In some cases, the apparatuses and methods involve providing a deposition device, such as a printing device; providing a transfer component; depositing a material onto a portion of the transfer component with the deposition device; modifying the portion of the transfer component with the transfer material thereon to conform the transfer component to at least a portion of the surface of the three-dimensional article; and transferring the transfer material onto the surface of the article.