Powder Spreading Device Dust Removal Mechanism for 3D Printing

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Solution Overview

Problem

Current 3D sand printing methods face issues with dust explosions due to ineffective dust removal during the powder laying process, leading to safety risks and reduced printing efficiency.

Innovation Solution

A powder spreading device equipped with a dust removing mechanism that includes a dust collection hood and dust collector pipe, which captures and removes raised dust outside the device body, preventing dust concentration and potential explosions, while improving powder laying efficiency and printing quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If powder is laid uniformly on the platform during 3D printing, then printing quality is improved, but dust concentration increases causing explosion risk

Engineering Contradiction:
Improveprinting qualityVSAvoiddust explosion risk
Core Design Contradiction:
Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The dust removing mechanism extracts and removes dust particles from the powder spreading area during the printing process. The dust collector is positioned to capture dust at its source, separating the harmful dust particles from the printing environment, thus maintaining both printing quality and safety.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The dust removing mechanism acts as an intermediary system between the powder spreading process and the printing environment. It captures and removes dust particles that are generated during powder laying, preventing them from accumulating and creating explosion hazards while allowing the printing process to continue with high quality.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If dust removing mechanism is added to the powder spreading device, then safety is improved, but device complexity increases

Engineering Contradiction:
Improvesafety performanceVSAvoiddevice structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The dust removing mechanism is integrated with the powder spreading device structure. The dust collector is positioned to utilize the existing spatial arrangement of the powder spreading components, merging the dust removal function with the powder spreading structure rather than adding completely separate systems.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The dust removing mechanism is designed to work concurrently with the powder spreading operation. The same structural elements and spatial arrangement serve both powder spreading and dust collection functions, making the system multi-functional without proportionally increasing complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 implementation of the dust removing mechanism effectively prevents dust explosions, enhances safety, and improves printing efficiency and quality by ensuring a cleaner powder surface and better powder distribution.

Implementation Method 1

a dust removing mechanism is provided on the adjustment assembly so as to suck the raised dust to outside the device body

Methodology Applied
Scientific EffectSuction: Suction

Data Source

PatentUS20250018652A1Powder spreading device, three-dimensional printing device, and three-dimensional printing system
Publication Date: 2025.01.16 KOCEL INTELLIGENT MACHINERY LIMITED
  • US20250018652A1 patent drawing
  • US20250018652A1 patent drawing
  • US20250018652A1 patent drawing

AI summary

A powder spreading device includes a device body, an adjustment assembly, and a dust removing mechanism. The adjustment assembly is provided on the device body. The adjustment assembly is configured to orient to a powder spreading surface. A first end of the dust removing mechanism is provided on the device body. The first end of the dust removing mechanism is covered over the adjustment assembly. A second end of the dust removing mechanism is communicated to the first end of the dust removing mechanism. The second end of the dust removing mechanism is configured to extend to the device body. A three-dimensional (3D) printing device and a 3D printing system are further provided.