Extrusion Tool Thermal Management for Additive Manufacturing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current 3D printing systems face inefficiencies in pre-heating and post-cooling extrusion tools, leading to energy wastage, material degradation, and increased downtime due to improper temperature management and clogging issues.
Innovation Solution
A 3D printer system with a carriage and rack configuration that includes a heating device, such as a Peltier device, and a cooling device, which uses temperature sensors and data processing to pre-heat the extrusion tool before use and post-cool it after use, optimizing the heating and cooling processes based on the material type and temperature measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the extrusion tool is pre-heated continuously to ensure readiness, then the manufacturing efficiency is improved, but the energy consumption increases
Solution Approach 1:
The system performs preliminary heating of the extrusion tool before it is actually needed for manufacturing. The controller calculates the optimal time to start heating based on the known manufacturing schedule, so the tool reaches the required temperature just in time for use, rather than maintaining continuous heating. This resolves the contradiction by preparing the tool in advance only when necessary, improving readiness without wasting energy during idle periods.
2Reliability
If the extrusion tool is kept at high temperature to prevent material degradation, then the material quality is maintained, but the energy wastage increases
Solution Approach 1:
The system dynamically adjusts the temperature of the extrusion tool based on real-time manufacturing needs and material properties. Rather than maintaining a constant high temperature, the controller modulates the heating to maintain the minimum necessary temperature for material quality, reducing energy wastage while ensuring material integrity is preserved throughout the manufacturing process.
3Loss of time
If the extrusion tool is heated earlier to ensure readiness, then the downtime is reduced, but the material degradation increases
Solution Approach 1:
The system optimizes the heating parameters (temperature, duration, timing) based on the specific material being used and the manufacturing schedule. The controller calculates the precise heating curve needed to reach the required temperature just in time for manufacturing, avoiding both premature heating that would cause degradation and delayed heating that would increase downtime. This resolves the contradiction by precisely controlling heating parameters to achieve optimal timing.
4Use of energy by moving object
If the extrusion tool is cooled down after use to save energy, then the energy consumption is reduced, but the readiness for next use increases
Solution Approach 1:
The system performs preliminary heating of the extrusion tool before the next manufacturing task begins, rather than waiting until the tool is needed. The controller schedules the heating to start when the tool is returned to the rack, ensuring the tool is ready for immediate use when the next task requires it. This resolves the contradiction by using idle time for preparation, reducing energy consumption during active manufacturing while maintaining readiness.
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
This approach improves manufacturing efficiency by ensuring the extruder is ready when needed, reducing energy consumption, minimizing material degradation, and preventing clogging, thereby decreasing downtime and material waste.
Implementation Method 1
a heating device associated with the extrusion tool... triggering the heating device to begin pre-heating the extrusion tool
Implementation Method 2
the heating device can be a Peltier device... triggering the cooling device to reduce a temperature of the extrusion tool
Data Source
AI summary
An additive manufacturing system, which can include a 3D printer, includes in at least one aspect: a build platform; a carriage and a rack configured to hold different manufacturing tools, including an extrusion tool; a heating device associated with the extrusion tool; a 3D motion system configured to move the carriage between the rack and a build space associated with the build platform, and to move the carriage within the build space associated with the build platform; and one or more computers programmed to trigger the heating device to begin pre-heating the extrusion tool at a point before mounting of the extrusion tool to the carriage by the 3D motion system, such that the material in the extrusion tool is melted by a point in the manufacturing process when the extrusion tool will be mounted on the carriage and in position to extrude material in the build space.