Movable Insulating Door for Additive Manufacturing Chamber

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Solution Overview

Problem

Existing 3D printing devices face issues with thermal insulation, leading to energy losses and suboptimal temperature conditions due to inadequate or complex insulation systems that are difficult to maintain and replace.

Innovation Solution

A device with a thermally insulated chamber featuring a dispensing unit and movable insulating elements that cover the opening of the chamber, utilizing thermally insulating materials and mechanisms like rollers to maintain temperature stability during additive manufacturing processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If thermal insulation is added to the chamber, then energy losses are reduced and temperature conditions are improved, but the arrangement becomes complex and prone to wear and tear

Engineering Contradiction:
Improveenergy lossesVSAvoidarrangement complexity
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The insulation system is divided into separate modular components: a door assembly with insulating elements and a chamber assembly. This segmentation allows each component to be independently manufactured, inspected, and replaced, reducing overall system complexity while maintaining effective thermal insulation to minimize energy losses.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The door assembly is designed to be movable rather than fixed, allowing it to be opened for material loading and closed for insulation. This dynamic design enables the insulation system to adapt between operational states (open/closed) without requiring complex fixed insulation structures, thereby reducing arrangement complexity while maintaining energy efficiency.

Inventive Principle:
Principle #15Dynamics

2Temperature

If thermal insulation is integrated into the chamber structure, then temperature stability is improved, but maintenance and replacement become difficult

Engineering Contradiction:
Improvetemperature stabilityVSAvoidmaintenance difficulty
Core Design Contradiction:
TemperatureVSEase of repair

Solution Approach 1:

The insulation system is segmented into removable door assemblies rather than being permanently integrated into the chamber structure. This allows the insulating components to be easily detached and replaced independently from the chamber, significantly improving maintenance accessibility while maintaining temperature stability during operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The door assembly with insulating elements is designed as a replaceable component that can be easily swapped out when worn or damaged. This approach prioritizes ease of replacement over permanent integration, allowing quick maintenance without requiring complex disassembly of the chamber structure, thus improving both maintenance ease and temperature stability.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Loss of energy

If the opening in the chamber wall is reduced, then insulation effectiveness is improved, but dispensing unit movement is restricted

Engineering Contradiction:
Improveinsulation effectivenessVSAvoiddispensing unit movement
Core Design Contradiction:
Loss of energyVSAdaptability or versatility

Solution Approach 1:

The door assembly is designed to move dynamically between open and closed positions. When closed, it provides effective insulation by covering the opening. When open, it allows the dispensing unit to move freely for material loading. This dynamic design resolves the contradiction by providing both insulation effectiveness and movement freedom at different operational stages.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The door assembly is positioned and configured in advance to cover the opening when not in use, preemptively preventing energy loss. During dispensing unit movement, the door is temporarily moved aside. This preliminary positioning of the insulating element ensures insulation effectiveness is maintained whenever possible, while allowing movement when necessary.

Inventive Principle:
Principle #10Preliminary action

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 provides effective thermal insulation with reduced complexity and ease of maintenance, ensuring consistent temperature conditions for improved additive manufacturing performance.

Implementation Method 1

at least one insulating element arranged to be moved with respect to the chamber in the first direction in response to a movement of the dispensing unit in the first direction, and to at least partly cover the opening for providing insulation

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentEP3626436B1Device for additive manufacturing and method for manufacturing the device
Publication Date: 2022.06.01 MINIFACTORY OY LTD
  • EP3626436B1 patent drawingFigure 1A~1B
  • EP3626436B1 patent drawingFigure 2A~2B
  • EP3626436B1 patent drawingFigure 2C~2D

AI summary

A device (100) for additive manufacturing, such as 3D printing, and a method for manufacturing the device (100) thereof are presented. The device (100) comprises a chamber (10) comprising an opening (12) in a wall (11) of the chamber (10), the opening (12) defining a surface having a surface normal (13), a dispensing unit (14) comprising an outlet (16) and an inlet (18), wherein the dispensing unit (14) is arranged to be moved in the opening at least in a first direction (X) with respect to the chamber (10), wherein the first direction (X) is perpendicular to the surface normal (13), and at least one insulating element (35) arranged to be moved with respect to the chamber (10) in the first direction (X) in response to a movement of the dispensing unit (14) in the first direction (X), and to at least partly cover the opening (12) for providing insulation.