3D Printing Pressing Member with Variable Hardness for Image Transfer
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Solution Overview
Problem
Existing three-dimensional object modeling techniques suffer from distortion and non-uniformity of transfer images due to single-point deformation, which restricts design freedom and accuracy in transfer systems.
Innovation Solution
A three-dimensional object modeling apparatus and method utilizing a pressing member with a combination of high and low hardness portions to distribute pressure evenly, preventing distortion and non-uniformity by using an intermediate transfer body to laminate images, allowing for multiple pressure points to disperse rubbing and enhance transfer efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single-point pressing method is used to transfer the image, then the transfer pressure is concentrated, but image distortion and non-uniform thickness occur
Solution Approach 1:
The pressing member is divided into multiple pressing portions (first pressing portion and second pressing portion) that apply pressure at different locations and intensities. This segmentation allows the transfer process to distribute pressure across multiple points rather than concentrating it at a single point, thereby preventing image distortion while maintaining transfer efficiency.
Solution Approach 2:
Different portions of the pressing member have different hardness characteristics - the first pressing portion has higher hardness than the second pressing portion. This local quality variation allows selective pressure application: the harder first portion provides stable structural support while the softer second portion applies gentler pressure to prevent image deformation during transfer.
2Productivity
If the drum is deformed under pressure to generate shear force, then transferability is enhanced, but the transfer image extends and distorts
Solution Approach 1:
The pressing member is divided into multiple pressing portions that generate shear force at different locations. This segmentation distributes the shear force generation across multiple points, preventing concentrated deformation that would cause image extension and distortion while still achieving effective transfer separation.
Solution Approach 2:
The hardness parameter of the pressing member is varied across different portions. The first pressing portion has higher hardness for structural stability, while the second pressing portion has lower hardness to generate appropriate shear force without excessive deformation. This parameter change allows controlled shear force generation that enhances transferability without causing image distortion.
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
The solution effectively suppresses image distortion and non-uniformity, improving transfer accuracy and efficiency while maintaining design flexibility by distributing pressure through multiple high and low hardness portions on the pressing member.
Implementation Method 1
rubbing is generated between an ink image to be transferred and a drum holding the ink image thereon so as to enhance transferability of the ink image
Implementation Method 2
producing force in a shear direction between the drum and the ink image so as to facilitate the separation of the ink image
Data Source
AI summary
A three dimensional object modeling apparatus that produces a three dimensional object. The apparatus including a forming unit configured to form a transfer image to be transferred on an intermediate transfer body, with the transfer image to be transferred to a laminate product that is a three dimensional object being formed. A laminating unit is provided to transfer the transfer image to the laminate product from the intermediate transfer body, and a pressing member is provided with the intermediate transfer body to take pressing power to the transfer image formed on the intermediate transfer body, in a state of contacting with the laminate product from the intermediate transfer body side for transferring the image to the laminate product. The pressing member including a plurality of high hardness portions having a high hardness and a low hardness portion having a hardness lower than that of the high hardness portions.