Interchangeable Powder Container for Compact 3D Build Chambers
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Solution Overview
Problem
Existing additive manufacturing processes face challenges in reducing installation space and minimizing cross-contamination during material changes, particularly when handling small quantities of powdery build-up materials.
Innovation Solution
An interchangeable container with integrated storage, construction, and collecting devices, featuring separate piston and build chamber drives, a compact design, and tool-free fastening, allows for efficient material changes without contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If an insert comprising a storage container, construction chamber and collecting device is used to reduce installation space, then the installation space is reduced, but the installation becomes very complex and cross-contamination can occur when changing the insert
Solution Approach 1:
The device is divided into separate interchangeable containers that can be independently replaced. Each container is a self-contained unit with standardized dimensions and mounting interfaces, allowing simple replacement without complex installation procedures. The container includes integrated components (substrate plate, build chamber, collecting device) that move together as a single modular unit.
Solution Approach 2:
The interchangeable container is designed as a universal component that can be used across different device configurations. It incorporates multiple functions within a single standardized unit: substrate plate mounting, build chamber containment, and surplus material collection. The standardized mounting interface allows the same container design to be used in various process chamber configurations.
2Volume of stationary object
If an insert is placed on the edge of the construction chamber on the floor of the process chamber, then installation space is reduced, but cross-contamination can occur when changing the insert
Solution Approach 1:
The storage container and collecting device are extracted from the traditional floor-mounted insert configuration and integrated into the interchangeable container assembly. This allows all components that handle material to be removed together as a single unit, eliminating the risk of cross-contamination during partial replacements or maintenance operations.
Solution Approach 2:
The substrate plate, build chamber, and collecting device are merged into a single interchangeable container assembly. This integration ensures that when the container is removed and replaced, all material-handling components are simultaneously exchanged, preventing cross-contamination between different material batches or projects.
3Volume of moving object
If only a substrate plate can be moved up and down to build up the component layer by layer, then the container size remains compact, but the installation space and cross-contamination issues persist
Solution Approach 1:
The substrate plate is nested within the interchangeable container, which itself is inserted into the process chamber. The collecting device is nested within the container structure. This nested arrangement allows compact container dimensions while maintaining all necessary functions, and the standardized outer dimensions of the container ensure it fits within the available installation space without requiring additional room.
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
Reduces installation space and minimizes cross-contamination by enabling quick, tool-free material changes with precise control over layer thickness, facilitating the use of small quantities of build-up materials.
Implementation Method 1
a storage device with a piston for dispensing the powdery build-up material, which can be actuated by a piston drive
Implementation Method 2
a build chamber with a substrate plate for the layer-by-layer build-up of the component, which can be driven by a build chamber drive
Implementation Method 3
device for producing a three-dimensional component by selective solidification of a build-up material applied in layers by means of a beam acting on the build-up material
Data Source
AI summary
The invention relates to an interchangeable container and to a device for producing a three-dimensional component (12) by selective solidification of a build-up material (13), applied in layers, by means of a beam (25) acting on the build-up material (13), comprising a peripheral wall (81) and a connection interface (91), formed at the upper edge of the peripheral wall (81), for connecting to a base (21) of the process chamber (16), characterized in that, within the peripheral wall (81), the interchangeable container (22) comprises: a storage means (51) having a piston (53) for dispensing powdered build-up material (13), which piston is controllable by a piston drive (55), a build chamber (61) having a build platform (17) for layered building of the component (12), which is driveable by a build chamber drive (54), and a work surface (82) which is provided on an upper end of the peripheral wall (81), which has an opening (52, 62, 19) for the storage means (51), the build chamber (61) and the collection device (71). (See FIG. 3)