Direct Print Inspection on Relief Containers
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Solution Overview
Problem
Existing methods for printing on containers with relief-like surface contours suffer from inaccuracies due to positional changes, leading to reduced print quality and container value, and lack suitable devices for both printing and checking direct prints on such surfaces.
Innovation Solution
A method and device that utilize an inspection device to check the quality and position of direct prints on containers with relief-like surface contours, allowing for precise alignment of print heads and correction of printing errors, and a correction print process to improve print quality and prevent waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If direct printing is applied to relief-like surface contours, then the container achieves high-quality product presentation and improved handling, but small changes in container position relative to the print head cause significant deterioration in printing result
Solution Approach 1:
The patent applies preliminary action by detecting the relief-like surface contour before printing and using this information to pre-adjust the print head positioning and orientation. This ensures that the print head is properly aligned with the three-dimensional surface geometry before the actual printing begins, preventing position sensitivity issues during the printing process.
Solution Approach 2:
The patent implements dynamics by making the print head positioning and orientation adjustable based on the detected surface contour. The system dynamically adapts the print head parameters to match the specific geometry of the relief-like surface, allowing for precise printing despite variations in container position during the printing process.
2Manufacturing precision
If direct printing is applied to relief-like surface contours, then the container achieves improved appearance and feel, but printing errors occur that reduce container value
Solution Approach 1:
The patent applies feedback by implementing an inspection device that detects printing errors after the printing process. The inspection device provides feedback information about printing quality, and based on this feedback, the system can determine whether to reject the container or apply corrective measures, thereby maintaining container value by ensuring only high-quality printed containers proceed to the next stage.
3Ease of manufacture
If containers with relief-like surface contours are printed, then the container achieves added value through ornamental structure, but imprecise printing causes double images that reduce value
Solution Approach 1:
The patent applies preliminary action by detecting the relief-like surface contour before printing and using this information to pre-adjust the print head positioning and orientation. This ensures that the print head is properly aligned with the three-dimensional surface geometry before the actual printing begins, preventing position sensitivity issues during the printing process.
Solution Approach 2:
The patent applies feedback by implementing an inspection device that detects printing errors after the printing process. The inspection device provides feedback information about printing quality, and based on this feedback, the system can determine whether to reject the container or apply corrective measures, thereby maintaining container value by ensuring only high-quality printed containers proceed to the next stage.
Data Source
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AI summary
The invention relates to a method for inspecting a direct print on containers with a relief surface contour, the relief surface contour being at least partially printed. Said method is characterised in that the quality and/or position of the direct print that is applied to the relief surface contour is inspected using an inspection device.