3D Screen Printing System With Automated Screen Exchange
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Solution Overview
Problem
Existing 3D printing systems require multiple devices and substrate repositioning to produce complex three-dimensional structures, leading to increased production time and resource consumption.
Innovation Solution
A 3D printing system with a screen supply device featuring a magazine for storing multiple printing screens and a transport device that allows for the selection and exchange of screens between a magazine and a holder, enabling the production of complex structures with varying layer designs using a single device without substrate removal, along with adjustable print head and table height for optimal layer stacking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple printing devices are used to produce complex three-dimensional structures, then the structural complexity is improved, but the device complexity and space requirements increase
Solution Approach 1:
The printing device is designed with a screen supply device that can hold and switch between multiple printing screens, allowing a single device to perform multiple printing operations that previously required several separate devices. The screen holder can accommodate different screens with varying aperture patterns, enabling the production of complex three-dimensional structures through sequential printing layers.
Solution Approach 2:
The screen supply device integrates multiple printing screens within a single device structure. The screens are stored in the screen holder and can be sequentially accessed, effectively nesting multiple functional elements (different screens) within one printing device, reducing the need for multiple standalone devices.
2Adaptability or versatility
If substrates are transferred between multiple printing devices, then complete three-dimensional structures can be produced, but the production time increases
Solution Approach 1:
The patent combines multiple printing screens and their functions into a single printing device with an integrated screen supply device. This merging allows the substrate to remain on one printing table throughout the entire printing process, eliminating the need for time-consuming transfers between multiple devices while still enabling complex three-dimensional structure production.
Solution Approach 2:
The screen supply device enables continuous printing operations by providing immediate access to different printing screens within the same device. The substrate can be printed on continuously with multiple layers using different screens without interruption for device transfer, maintaining continuous useful action throughout the printing process.
3Adaptability or versatility
If multiple printing screens are stored and exchanged, then diverse three-dimensional structures can be produced, but the screen management complexity increases
Solution Approach 1:
The screen supply device segments the screen management function into a dedicated module with a screen holder that can store multiple printing screens. This segmentation isolates the complexity of screen management into a specific component, making it easier to handle and exchange screens without complicating the entire printing device.
Solution Approach 2:
The screen holder acts as an intermediary between screen storage and the printing operation. It provides a standardized interface for holding and exchanging screens, simplifying the management process by mediating between the need for screen variety and the printing operation, reducing direct complexity in screen handling.
Data Source
Figure 1~2
Figure 3~4
AI summary
A printing system (1) for printing three-dimensionally shaped structures, in particular on substrates such as printed circuit boards, wafers, solar cells, carrier substrates, printing tables, carrier plates, sintered plates or the like, comprising at least one printing device (2) having a print head (8), a doctor blade device (9) and a screen holder (10) associated with the doctor blade device (9) for receiving a printing screen (11). It is provided that a screen supply device (25) includes at least one screen magazine (3) for storing several printing screens (11) and a transport device (4) for transporting a printing screen (11) from the screen magazine (3) to the screen holder (10) and from the screen holder (10) to the screen magazine (3).