Multi-Nozzle 3D Porous Structure Printing for Higher Throughput
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Solution Overview
Problem
Existing additive manufacturing systems for three-dimensional porous structures are inefficient and slow, particularly in mass production, necessitating improvements in printing speed and efficiency without significantly increasing costs or ecological footprint.
Innovation Solution
A method and system utilizing a nozzle head with multiple nozzles spaced apart to concurrently deposit filaments in a predetermined interconnected arrangement, allowing for the simultaneous manufacturing of multiple three-dimensional porous structures with improved control over filament spacing and orientation, enhancing printing quality and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single nozzle is used for additive manufacturing of porous structures, then the manufacturing process is simple, but the production speed is slow and productivity is low
Solution Approach 1:
The single nozzle is segmented into multiple nozzles arranged in an array, where each nozzle can independently deposit filaments. This segmentation allows parallel deposition of multiple filaments simultaneously, significantly increasing production speed while maintaining control over filament spacing and structure geometry
Solution Approach 2:
Multiple nozzles are merged into a single nozzle head assembly that moves as one unit. This combining approach enables simultaneous filament deposition from multiple nozzles while maintaining synchronized movement and positioning, achieving high productivity without proportionally increasing system complexity
2Productivity
If multiple nozzles are used to increase production speed, then productivity improves, but the control over filament spacing and printing quality becomes more difficult
Solution Approach 1:
The nozzle array is designed with adjustable spacing between nozzles, allowing dynamic optimization of filament deposition patterns. The relative positions of nozzles can be configured to achieve desired filament spacing and overlap, enabling precise control over pore size, shape, and distribution while maintaining high-speed parallel deposition
Solution Approach 2:
The system incorporates control mechanisms that monitor and adjust filament deposition parameters in real-time, ensuring consistent filament spacing and orientation across all nozzles. This feedback control maintains manufacturing precision even as productivity increases through multi-nozzle operation
3Productivity
If conventional additive manufacturing methods are used, then the process is simple to implement, but the ecological footprint and operational costs increase due to slow production
Solution Approach 1:
The multi-nozzle system enables continuous filament deposition across multiple structures simultaneously, eliminating idle time between printing operations. All nozzles operate in parallel throughout the printing process, maintaining continuous useful action that reduces total energy consumption per produced unit compared to sequential single-nozzle operation
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 method significantly increases productivity and printing quality by enabling simultaneous production of multiple porous structures with consistent design, while maintaining cost-effectiveness and reducing the ecological impact.
Implementation Method 1
A material (e.g. a viscous paste, a meltable polymer, a hydrogel, etc.) is extruded through a nozzle in the form of filaments
Data Source
AI summary
A method and system for manufacturing one or more three-dimensional porous structures (10). Filaments (2) are deposited on a support in a predetermined interconnected arrangement in a plurality of stacked layers (11) for forming one or more porous structure with interconnected pores (15). A nozzle head (30) with a plurality of nozzles (20) is used for depositing filaments. The plurality of nozzles are spaced apart from each other with a predetermined spacing therebetween. Each nozzle has an opening area through which filaments are dispensed as the nozzle head is moved relative to the support. Multiple 3D porous structures are manufactured in parallel, using a subset of nozzles for each porous structure, each subset of nozzles including at least one nozzle. Neighboring subsets of nozzles are distanced in order to provide a working area on which the relevant porous structure of the plurality of porous structures is manufactured.