3D Screen Printing System with Marked Carriers for Continuous Drying
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Solution Overview
Problem
The productivity of existing 3D screen printing systems is limited due to the underutilization of the printing station, as drying time exceeds printing time, leading to inefficiencies in the production process.
Innovation Solution
An automated 3D screen printing system where workpiece carriers are individually marked and tracked, allowing for improved process reliability and utilization by enabling continuous operation with multiple carriers, and allowing workpieces to be dried separately from the printing table between layers, optimizing the use of both printing and drying devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple drying stations are arranged adjacent to the printing station, then drying capacity is improved, but printing station utilization deteriorates due to idle time during drying operations
Solution Approach 1:
The system prepares multiple workpiece carriers with different layer completion statuses in advance. While one carrier is being dried, another carrier is already prepared with additional layers printed, so that when drying completes, the next printing operation can immediately begin without idle time. This preliminary preparation of workpiece carriers resolves the contradiction by ensuring continuous printing station utilization while maintaining multiple drying operations.
Solution Approach 2:
The printing station maintains continuous useful action by switching between multiple workpiece carriers. Instead of idle time during drying, the system continuously prints on different carriers, ensuring that the printing station is always productive. The marking and tracking system enables this continuity by identifying which carrier needs what action next.
2Reliability
If workpiece carriers are individually marked and tracked, then process reliability is improved, but system complexity increases due to additional marking and tracking infrastructure
Solution Approach 1:
The marking and tracking system provides continuous feedback about the status of each workpiece carrier (which layers are printed, which need drying, etc.). This feedback enables the control system to make informed decisions about which carrier to print on next, ensuring process reliability. The feedback mechanism justifies the added complexity by providing the information necessary for reliable automated decision-making.
Solution Approach 2:
Each workpiece carrier essentially serves itself through its unique marking, which allows the system to automatically identify and track its own progress without external intervention. The carrier's marking contains the information needed for the system to manage it appropriately, reducing the need for complex external monitoring and control infrastructure.
Data Source
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AI summary
Device for the production of three-dimensional screen-printed workpieces, in particular a 3D screen-printing system, with a printing device for the layer-by-layer production of at least one screen-printed workpiece in several printing processes and with a plurality of workpiece carriers that can be positioned within the printing device for carrying out a printing process, wherein at least one of the workpiece carriers is individually and/or traceably marked.