Container Printing Parameter Control via Test Mark Inspection
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Solution Overview
Problem
Existing methods for printing containers lack proactive control and effective error correction, relying on limited visual quality control and color space management, which does not ensure consistent print quality.
Innovation Solution
A method and apparatus that utilize a test marking to assess and adjust printing parameters, with a controller and inspection device ensuring the printing unit's readiness and quality by comparing the test marking to predetermined tolerance ranges, allowing for automatic modification and logging of parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If visual quality control is used to control printing quality, then the control method is simple, but the control effectiveness is insufficient and cannot detect all printing errors
Solution Approach 1:
The patent replaces manual visual inspection with an automated optical inspection system. The inspection device uses optical sensors to detect printing errors such as missing dots, misplaced text, and color inaccuracies, eliminating the subjectivity and limitations of human visual control while maintaining operational simplicity through automation.
Solution Approach 2:
The inspection device provides real-time feedback to the printing unit about printing quality. When defects are detected, the system automatically adjusts printing parameters or alerts operators, creating a closed-loop control system that continuously monitors and corrects printing errors to maintain high reliability.
2Device complexity
If printing parameters are controlled manually, then the system complexity is low, but the printing quality consistency deteriorates
Solution Approach 1:
The printing unit automatically adjusts its own operating parameters based on feedback from the inspection device. The system performs self-diagnosis and self-correction of printing quality issues, eliminating the need for complex manual parameter adjustment while maintaining consistent printing quality through automated control.
Solution Approach 2:
The inspection device conducts preliminary inspections before full production runs to identify and correct printing parameter issues in advance. This allows the system to prepare and calibrate printing parameters beforehand, ensuring consistent quality from the start of production without requiring complex real-time adjustments.
3Adaptability or versatility
If only current printing operation is monitored, then the inspection scope is limited, but the proactive error correction capability is reduced
Solution Approach 1:
The system performs preliminary inspections using test markings before actual printing operations begin. By inspecting test prints and adjusting parameters in advance, the system proactively identifies potential errors before they affect production, expanding the inspection scope to include preparatory phases and improving error correction capability.
Solution Approach 2:
The inspection device provides continuous feedback during printing operations, monitoring each printed item in real-time. This comprehensive monitoring allows the system to detect and correct errors as they occur, expanding the inspection scope beyond final product checking to include process monitoring and enabling timely error correction.
Data Source
AI summary
The invention relates to a method for printing objects, in particular containers, wherein the containers are transported along a specified transport path, and the outer surface of the containers is printed at least temporarily by means of at least one printing unit, wherein a controller controls the printing of the containers by means of the at least one printing unit on the basis of at least one printing parameter. According to the invention, at least one object to be printed is printed with at least one test marking in order to ascertain the printing parameter, and the object provided with the test marking is then inspected by means of at least one inspection device, wherein the printing parameter is derived from the result of the inspection.