Multi-region Inspection System for Printed Sheet Quality Control
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Solution Overview
Problem
Existing inspection systems for printed products produced by multiple printing processes struggle to accurately assess and adjust for the varying printing properties across different areas of a printed sheet, leading to inconsistent quality control.
Innovation Solution
An inspection system with multiple detection areas, each set to different metrological sensitivities to accommodate the unique properties of print images produced by various printing methods, allowing for tailored evaluation and control of printing processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single inspection system with uniform sensitivity is used for all printing areas, then the system structure is simple, but it cannot accurately assess varying printing properties across different areas
Solution Approach 1:
The inspection system is divided into multiple detection areas (first detection area, second detection area, etc.), each capable of independently inspecting different printing areas. Each detection area can be configured with specific sensitivity settings appropriate for the printing process used in its designated area, enabling accurate assessment of varying printing properties while maintaining a modular, manageable system structure.
Solution Approach 2:
Different detection areas are assigned different metrological sensitivities according to the specific printing processes used in their respective regions. For example, areas using steel engraving may have higher sensitivity requirements than areas using offset printing. This local differentiation of inspection parameters allows each area to be optimized for its specific printing characteristics while maintaining overall system coherence.
2Manufacturing precision
If different metrological sensitivities are set for different detection areas, then printing quality control becomes more accurate, but the system becomes more complex
Solution Approach 1:
The inspection system incorporates adjustable metrological sensitivities for different detection areas, allowing the sensitivity parameters to be dynamically configured based on the specific printing process being inspected. This dynamic adaptability enables the system to maintain high manufacturing precision across different printing techniques while providing flexibility in configuration rather than fixed complexity.
Solution Approach 2:
The system allows changing of metrological sensitivity parameters for different detection areas according to the printing process requirements. By enabling parameter adjustment rather than requiring fixed different systems, the patent achieves accurate quality control for various printing methods while minimizing operational complexity through a unified, adaptable platform.
3Ease of operation
If uniform inspection tolerances are applied to all printing areas, then the inspection process is simple, but it cannot account for different printing process characteristics
Solution Approach 1:
The inspection system segments the printed sheet into different detection areas, each associated with specific printing process characteristics. This segmentation allows the inspection process to remain simple and standardized within each area while providing adaptability across different printing processes through the modular detection area structure.
Solution Approach 2:
The inspection system is designed as a universal platform that can inspect multiple types of printing processes (steel engraving, offset printing, screen printing, digital printing) through its multiple detection areas. Each detection area can be configured for its specific printing process, making the overall system versatile and adaptable while maintaining a unified, easy-to-operate structure.
Data Source
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AI summary
The invention relates to an inspection system having a plurality of detection regions, wherein the plurality of said detection regions (17; 18; 19; 21) of the inspection system (13) are arranged so as to jointly inspect a printed sheet (02) which has a plurality of printed regions, wherein a first detection region (17) is arranged so as to inspect a first printed region of the printed sheet (02), and a second detection region (18) is arranged so as to inspect a second printed region of the same printed sheet (02), wherein a first measuring technology sensitivity is set for the first detection region (17) and a second measurement technology sensitivity is set for the second detection region (18) in the inspection system (13), wherein the first measurement technology sensitivity and the second measurement technology sensitivity are set so as to be different from one another, wherein the first measurement technology sensitivity and the second measurement technology sensitivity are set in each case manually by means of an operating element or automatically by way of a program.