Closure Structure Inspection for Capping Machines
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing capping machines and inspection systems for packages with pre-applied closure structures are in need of improvements to ensure accurate and cost-effective application of caps, particularly in ensuring the correct positioning and shape of closure structures on packages containing pourable products.
Innovation Solution
An inspection system and method that utilizes imaging devices, such as 2D or 3D cameras, to analyze the shape and position of pre-applied closure structures on packages, calculating deviations from nominal shapes and positions, and adjusting cap application accordingly to prevent faulty installations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional inspection methods are used for closure structures, then the capping machine can operate continuously, but the positioning accuracy and shape verification of closure structures are insufficient leading to faulty cap applications
Solution Approach 1:
The inspection system performs preliminary verification of closure structures (position, shape, orientation) before the capping operation. The imaging device captures images and the control unit analyzes whether closure structures are correctly formed and positioned prior to cap application, preventing faulty installations while maintaining continuous production flow.
Solution Approach 2:
The inspection system provides real-time feedback to the capping machine control unit. When non-nominal closure structures are detected, the system generates signals to adjust or skip problematic packages, creating a closed-loop control system that maintains both inspection accuracy and production productivity through dynamic adjustment.
2Productivity
If caps are applied to all packages without inspection, then production speed is maintained, but waste increases due to faulty cap applications on packages with incorrect closure structures
Solution Approach 1:
The system performs preliminary inspection of closure structures before cap application decisions are made. By verifying closure structure correctness in advance, the system identifies packages that should not receive caps, preventing waste of caps and materials on defective packages while maintaining continuous production flow.
Solution Approach 2:
The inspection system enables selective discarding of packages with non-nominal closure structures before they enter the capping process. The control unit generates discard signals for defective packages, preventing cap application on unsalvageable packages and reducing waste of caps, packaging materials, and production time.
3Productivity
If no inspection system is used, then the capping machine operates without interruptions, but stress and damage occur on both packages and capping machine components due to misaligned closure structures
Solution Approach 1:
The inspection system performs preliminary verification of closure structure alignment and geometry before the capping operation. By identifying misaligned or deformed closure structures in advance, the system prevents mechanical stress and damage to both packages and capping machine components that would occur during forced cap application.
Solution Approach 2:
The inspection system provides beforehand detection of potentially problematic packages, allowing the control unit to prepare appropriate responses (adjustment, skipping, or discard signals) before the capping operation occurs. This preventive approach cushiones against potential damage to packages and machine components by avoiding forced operations on defective packages.
Data Source
Figure 1
Figure 2~3A
Figure 3B~3C
AI summary
There is described an inspection system (14) for a capping machine (13) configured to apply caps (6) onto packages (2) containing a pourable product and each provided with a respective closure structure (5) comprising at least a collar (5a) pre-applied at a respective main wall (2b) of the package (2) and adapted to receive one said cap (6), the inspection system (14) being configured to sequentially inspect the closure structures (5) and comprising: - an imaging device (15) configured to acquire at least one image (16) per package of an inspection area (17) of the package (2), the inspection area (17) including at least the collar (5a); and - a control unit configured to analyze each acquired image (16) for determining a shape of the collar (5a) from said acquired image (16); wherein the control unit is configured to calculate a deviation of the determined shape of the collar (5a) from a nominal reference shape of the collar (5a).