Exchangeable Insert Unit for 3D Printing Material Changes
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Solution Overview
Problem
Conventional 3D printers require time-consuming and technically complex material changes, as the printing head and material supply need to be adapted or exchanged manually, limiting the possibility of fully automatic operation during multi-material constructions.
Innovation Solution
The integration of an exchangeable insert unit that combines the printing head, material stock holder, and supply device, allowing for simultaneous exchange and immediate readiness of the printing head with the new material, eliminating the need for separate component handling and cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the printing head and material supply are exchanged separately in conventional 3D printers, then the material change can be performed, but the process becomes time-consuming and technically complex requiring manual adaptation
Solution Approach 1:
The patent combines the printing head, material supply device, and holder into a single integrated exchangeable unit. This merging allows all components to be replaced simultaneously as one unit, eliminating the time-consuming separate handling and manual adaptation required in conventional systems where these components are exchanged independently.
Solution Approach 2:
The integrated unit is pre-configured with the holder and material supply device already positioned and connected to the printing head before insertion. This preliminary arrangement ensures that upon insertion into the carrier, the printing head is immediately ready to receive and use the new material without requiring any manual setup or adaptation steps.
2Adaptability or versatility
If the printing head and material supply are exchanged separately, then material change is possible, but the handling complexity increases
Solution Approach 1:
By merging the printing head, material supply device, and holder into one integrated unit, the patent reduces the number of separate handling operations. The user only needs to insert or remove one unit rather than manually manipulating multiple separate components, significantly simplifying the operation and reducing handling complexity.
Solution Approach 2:
The integrated unit is designed to be self-contained with all necessary connections and components pre-arranged. When inserted into the carrier, the unit automatically positions itself and establishes connections without requiring manual intervention for alignment or configuration, making the material change process as simple as inserting a cartridge.
3Adaptability or versatility
If manual adaptation and cleaning are required for material changes, then material switching is possible, but the process efficiency decreases
Solution Approach 1:
The integrated design ensures that the printing head and material supply system work as a pre-coordinated unit. This eliminates the need for manual adaptation steps where operators would otherwise need to adjust settings or reconfigure connections when switching materials, allowing immediate resumption of construction operations.
Solution Approach 2:
The unit is pre-configured with the appropriate material supply connections and positioning before insertion. This preliminary preparation eliminates the need for post-insertion adjustments or cleaning operations, allowing the printing process to continue uninterrupted and maintain high construction speed during multi-material operations.
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 solution simplifies material changes, reduces handling complexity, and enables immediate use of the printing head with the new material, facilitating faster and more efficient multi-material constructions without the need for manual adaptation or cleaning.
Implementation Method 1
a shaped body is built in layers from a meltable plastic... the liquefaction of a plastic or resin material (filament) usually fed in wire-form from a material stock is at first effected by heating, followed by the application of the liquefied material by extrusion through a nozzle
Implementation Method 2
the liquefaction of a plastic or resin material (filament) usually fed in wire-form from a material stock is at first effected by heating
Implementation Method 3
followed by the application of the liquefied material by extrusion through a nozzle and, finally, the solidification of the material by cooling on the desired location of the working plane
Data Source
AI summary
In a device for the additive manufacturing of a shaped body, comprising a construction platform, at least one printing head for applying material layer by layer to the construction platform or the shaped body at least partially constructed on the construction platform, a positionable carrier for the at least one printing head, a positioning system for the carrier, a holder for a material stock, and a supply device for supplying material from the material stock to the at least one printing head, the holder for the material stock, the supply device and the printing head are arranged in a unit designed as an exchangeable insert.