Blowing Device for 3D Printing Nozzle Cooling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
FDM 3D printers face challenges with poor surface quality due to crumbling and curvature of printouts, and slow production speed due to additive layering, as well as the need for extended production time to ensure complete solidification of thermoplastic materials.
Innovation Solution
A blowing device is installed at the nozzle of a syringe in a 3D printer, which sprays a fluid to reduce the temperature of the ejected printing material, thereby shortening its solidification time and allowing for faster layer stacking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If thermoplastic material is ejected through the nozzle to complete the printout, then the structure is formed layer by layer, but the production speed is slow due to the need for complete solidification of each layer
Solution Approach 1:
The patent applies preliminary action by introducing cooling fluid through the hollow pipe before the thermoplastic material fully solidifies. The cooling fluid is supplied in advance to the nozzle area to pre-cool the ejected material, enabling faster solidification and allowing the next layer to be deposited sooner, thus reducing overall production time.
Solution Approach 2:
The patent uses cooling fluid as an intermediary substance to transfer heat away from the ejected thermoplastic material. The fluid circulates through the hollow pipe, absorbing heat from the material and surrounding area, thereby accelerating solidification without directly contacting or contaminating the printed structure.
2Ease of manufacture
If thermoplastic material is ejected in a highly viscous liquid state to form the structure, then the material can be deposited, but the surface quality deteriorates due to crumbling and curvature
Solution Approach 1:
The cooling fluid is introduced in advance to the nozzle area to pre-cool the thermoplastic material as it is being ejected. This preliminary cooling action ensures that the material begins to solidify immediately upon contact with the cooled environment, preventing surface deformation and maintaining dimensional accuracy throughout the deposition process.
Solution Approach 2:
The patent changes the temperature parameter of the ejected material by introducing cooling fluid. By controlling the temperature of the cooling fluid and the flow rate through the hollow pipe, the solidification rate of the thermoplastic material is adjusted, enabling optimal balance between deposition ease and surface quality.
3Reliability
If additional stacking is performed after material solidification to prevent shape distortion, then structural integrity is improved, but production time increases significantly
Solution Approach 1:
The cooling fluid is supplied in advance to ensure complete and rapid solidification of each layer before the next layer is deposited. This preliminary solidification action eliminates the need for additional post-deposition stacking or support structures, as the material maintains its shape and structural integrity during the additive process, thereby reducing total production time.
4Productivity
If the nozzle area is cooled to accelerate solidification, then production speed improves, but the temperature control becomes more complex
Solution Approach 1:
The hollow pipe integrated into the nozzle assembly serves multiple functions: it acts as the deposition channel for thermoplastic material, provides structural support, and simultaneously serves as a cooling channel for the cooling fluid. This multi-functionality reduces the need for separate cooling components, simplifying the overall temperature control system while maintaining effective cooling.
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 blowing device improves printing quality and processability by rapidly solidifying the printing material, preventing surface curvature, and minimizing production time, thus enabling more efficient and high-quality 3D structure printing.
Implementation Method 1
spraying hole which sprays fluid to reduce the temperature of the printing material ejected from the nozzle of the syringe and around the nozzle to shorten the solidification time of the printing material
Data Source
AI summary
The present disclosure relates to a blowing device for improving three-dimensional (3D) structure printing processing, which may improve printing processability by rapidly solidifying printing material ejected from a nozzle, and is characterized in that it includes a blower jig installed at the lower part of a syringe in which printing material is received and ejected, and having a spraying hole which sprays fluid to reduce the temperature of the printing material ejected from the nozzle of the syringe and around the nozzle to shorten the solidification time of the printing material; and a pneumatic hose connected to the blower jig to deliver the fluid at a normal pressure.