Digital Printing Frequency Control for Material Deposition
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Solution Overview
Problem
Existing digital printing systems for quantity control are complex, lack versatility, and are heavily dependent on operator skill and experience, leading to inefficient and slow production processes, especially when adjusting material deposition for ceramics.
Innovation Solution
A method and system that calculate and adjust actual printing frequencies and resolutions dynamically based on predefined theoretical quantities and running velocities, allowing for precise control of material deposition and automatic optimization of printing processes without requiring significant operator intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If resolution-based printing control is used, then printing quality is maintained, but material quantity control is imprecise and requires multiple trial runs
Solution Approach 1:
The patent changes the control parameter from resolution (dots per inch) to printing frequency (dots per second), which is directly linked to material quantity. By controlling how often printing actuators fire rather than how densely dots are arranged, the system achieves precise material quantity control in a single pass without requiring trial runs at different resolutions.
2Manufacturing precision
If operator intervention is used to adjust printing parameters, then material quantity can be optimized, but system complexity and difficulty of operation increase
Solution Approach 1:
The system automatically calculates and adjusts printing frequencies based on desired material quantities without requiring operator intervention. The control system self-regulates by translating material quantity requirements into specific printing frequencies, eliminating the need for operators to have specialized skills or to perform manual adjustments.
Solution Approach 2:
The system incorporates feedback mechanisms that monitor actual printing frequencies and material deposition, automatically adjusting parameters to achieve target material quantities. This closed-loop control ensures precise material control while removing the need for skilled operators to manually tune parameters.
3Adaptability or versatility
If conventional resolution-based printing is used, then printing process is simple, but versatility and adaptability to different material requirements are limited
Solution Approach 1:
The patent creates a universal printing control system that can handle different material deposition requirements by using frequency as a common control parameter. Whether the application requires decorative printing or material deposition, the same frequency-based control mechanism adapts to the specific needs, providing versatility without requiring separate specialized systems.
Data Source
AI summary
A method for digital printing in quantity, including the steps of providing a conveying unit adapted to convey printing substrates, setting a running velocity, providing a digital printer, providing a graphics file as input to the digital printer representing a motif to be reproduced on the printing substrates at a predefined resolution, calculating a decoration frequency for printing with decorative inks as a function of the predefined resolution and of the running velocity, calculating single material printing frequencies for each one of the material inks, calculating a synchronized printing frequency, calculating a scaling factor, calculating an actual printing frequency as a function of the scaling factors, calculating an actual printing resolution as a function of the actual frequency of material to be deposited and of the running velocity, and printing on the printing substrates at the actual printing resolution.