Powder Sieving System With Movable Broad Frequency Filter
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Solution Overview
Problem
Additive manufacturing machines face challenges in efficiently recycling and sieving powders due to the size and configuration of printed objects, leading to difficulties in powder removal and collection.
Innovation Solution
A powder sieving system utilizing a broad frequency filter with a movable filter housing and a combination of rigid and flexible filters to separate powders larger than a predetermined threshold from those smaller, allowing the recirculation of the smaller portion back to the processing device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single rigid filter is used for powder sieving, then the filter structure is simple and easy to manufacture, but the filtering efficiency and adaptability to different powder sizes are limited
Solution Approach 1:
The filter system is divided into multiple independent filter elements (first filter, second filter, third filter) with different pore sizes arranged in series. Each filter targets specific particle size ranges, enabling efficient separation of fine powder from larger particles through segmented filtering stages rather than a single filter.
Solution Approach 2:
The filter housing is made movable relative to the support structure, allowing dynamic adjustment of the filter system's position and orientation. This enables adaptation to different powder processing requirements and improves accessibility for maintenance while maintaining filtering efficiency.
2Productivity
If multiple filters are used to improve filtering efficiency, then the powder recycling efficiency improves, but the device complexity increases
Solution Approach 1:
Multiple filter elements with different pore sizes are combined within a single integrated filter housing structure. The first filter (10 micrometers), second filter (20 micrometers), and third filter (40 micrometers) are arranged in series within one housing, achieving efficient multi-stage filtering without requiring separate housing units for each filter.
Solution Approach 2:
The filter system is designed to handle multiple powder size classifications simultaneously using a single integrated装置. The broad frequency filter configuration enables the system to process and separate particles across a wide size range (10-40 micrometers and beyond) in one pass, making the system universally applicable to various powder recycling needs.
3Ease of operation
If the filter housing is made movable to improve accessibility and maintenance, then the ease of operation improves, but the stability of the filtering process may be affected
Solution Approach 1:
The filter housing is designed with movable capability relative to the support structure, allowing operators to easily access, install, remove, and maintain filter elements. The dynamic design enables straightforward cleaning and replacement of filters without disassembling the entire system, significantly improving operational ease while maintaining filtering stability through proper repositioning.
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 system effectively recovers and recirculates unused powder, improving the efficiency of powder recycling and reducing waste by ensuring only the larger particles are removed, maintaining the quality of the smaller particles for reuse.
Implementation Method 1
a broad frequency filter disposed between the inlet and the outlet, the broad frequency filter including: a first filter fixed relative to the filter housing, the first filter being substantially rigid; and a second filter coupled within the filter housing adjacent to the first filter, the second filter being substantially flexible
Implementation Method 2
the second filter being substantially flexible such that the second filter is movable relative to the first filter within the filter housing when the filter housing moves relative to the support structure
Data Source
AI summary
A powder sieving system that is configured as part of a powder reclamation system is provided. The powder sieving system includes a support structure; and a filter housing movable relative to the support structure, the filter housing defining an inlet and an outlet and comprising a broad frequency filter disposed between the inlet and the outlet, the broad frequency filter including: a first filter fixed relative to the filter housing, the first filter being substantially rigid; and a second filter coupled within the filter housing adjacent to the first filter, the second filter being substantially flexible such that the second filter is movable relative to the first filter within the filter housing when the filter housing moves relative to the support structure, the first filter and the second filter configured to restrict a first portion of a powder larger than a predetermined threshold from reaching the outlet.