Movable Insulation Walls for 3D Printing Thermal Management
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Solution Overview
Problem
Existing three-dimensional fabricating apparatuses face challenges in rapidly increasing or decreasing the temperature in the processing space, leading to prolonged preheating and cooling times, which hinder the quick start and completion of fabrication processes.
Innovation Solution
A three-dimensional fabricating apparatus with insulation walls and an insulation-wall mover that adjusts the volume of the processing space by displacing at least part of the insulation walls, allowing for faster temperature changes by optimizing the volume during preheating and cooling phases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the processing space volume is kept large for fabrication, then the fabrication capacity is maintained, but the preheating time becomes excessively long
Solution Approach 1:
The patent applies the dynamics principle by making the insulation wall movable rather than fixed. The insulation wall can dynamically adjust its position to change the processing space volume: positioned closer to the heating element during preheating to reduce volume and heating time, then moved away during fabrication to provide adequate space for the build plate and object. This dynamic adjustment resolves the contradiction between fast preheating and sufficient fabrication capacity.
Solution Approach 2:
The patent applies parameter changes by varying the processing space volume parameter at different stages of the process. The volume is reduced during preheating (by moving the insulation wall closer) to accelerate temperature rise, and then increased during fabrication (by moving the insulation wall away) to accommodate the build plate and object. This parameter change strategy directly addresses the time-capacity trade-off.
2Loss of time
If the processing space volume is reduced for fast preheating, then the preheating time is shortened, but the fabrication space becomes insufficient
Solution Approach 1:
The movable insulation wall enables dynamic volume adjustment that adapts to different process requirements. During preheating, the wall is positioned to create a compact volume for rapid heating. During fabrication, the wall moves to expand the volume sufficiently for the build plate and object. This dynamic behavior resolves the spatial conflict between fast preheating and adequate fabrication space.
Solution Approach 2:
The patent segments the chamber into variable-volume processing space and fixed external structure. The movable insulation wall creates a segmented boundary that can independently adjust the internal volume without affecting the overall apparatus size. This segmentation allows the processing space to be optimized for different operational phases while maintaining structural integrity.
3Speed
If the processing space volume is kept large for cooling, then the cooling efficiency is improved, but the preheating time becomes excessively long
Solution Approach 1:
The movable insulation wall enables dynamic volume adjustment that serves both preheating and cooling requirements. During preheating, the wall is positioned close to the heating element to minimize volume and accelerate heating. During cooling, the wall moves away to expand volume and improve cooling efficiency through increased surface area and air circulation. This dynamic adjustment eliminates the need to compromise either preheating or cooling performance.
Solution Approach 2:
The patent applies parameter changes by varying the processing space volume based on the thermal phase. The volume parameter is minimized during preheating to reduce thermal mass and heating time, then maximized during cooling to enhance heat dissipation. This parameter optimization strategy resolves the contradiction between preheating speed and cooling efficiency.
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 enables rapid temperature adjustments, reducing preheating and cooling times, allowing for earlier start and completion of fabrication processes, and facilitating the quick removal of the finished product.
Implementation Method 1
The processing space heater heats the processing space in the chamber
Implementation Method 2
chamber (3) including insulation walls
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A three-dimensional fabricating apparatus (1) includes a chamber (3), a processing space heater (7), a fabrication unit (10), and an insulation-wall mover (23, 23'). The chamber (3) includes insulation walls (3A, 3B, 3C, 3D, 3E, 3F, and 3G) and a processing space surrounded by the insulation walls (3A, 3B, 3C, 3D, 3E, 3F, and 3G). The processing space heater (7) heats the processing space in the chamber (3). The fabrication unit (10) fabricates a three-dimensional fabrication object in the processing space heated to a target temperature by the processing space heater (7). The insulation-wall mover (23, 23') displaces at least a part of the insulation walls (3A, 3B, 3C, 3D, 3E, 3F, and 3G) to increase or decrease a volume of the processing space.