Closure Lid Testing Device for Tear-Off Force and Leak Detection
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Solution Overview
Problem
Current methods for testing the connection and tightness of closure lids, including guarantee bands and binding means, are complex and inefficient, often requiring manual operation and separate devices for tear-off force measurement and leak testing.
Innovation Solution
A device that combines a sealing structure for leak testing with a driving element for gripping the guarantee band or binding means, allowing for simultaneous measurement of tear-off force and tightness, featuring a mandrel with a sealing structure that forms a sealed chamber and a pressure measuring device to quantify tightness, along with a cutting mechanism for easy removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual testing methods are used for tear-off force and leak testing, then measurement precision can be maintained, but productivity is reduced and device complexity increases
Solution Approach 1:
The patent combines tear-off force measurement and leak testing functions into a single integrated device. The testing device includes both a force measurement system with a mandrel and carrier element for measuring tear-off force, and a leak testing system with a sealing structure that forms a sealed chamber. This merging of previously separate testing operations into one unified device enables automated simultaneous measurement of both parameters, thereby increasing productivity while maintaining measurement precision through dedicated sensing elements for each function.
2Productivity
If separate devices are used for tear-off force measurement and leak testing, then measurement precision is maintained, but productivity decreases due to sequential testing
Solution Approach 1:
The integrated testing device enables continuous automated operation where tear-off force measurement and leak testing are performed in sequence without manual intervention between steps. The carrier element automatically transitions from gripping the guarantee band for tear-off measurement to forming a sealed chamber for leak testing. This continuous automated process eliminates idle time between testing operations and enables rapid sequential testing of multiple lids, thereby increasing throughput and reducing time loss compared to separate manual testing devices.
3Productivity
If automated testing is implemented, then productivity increases, but device complexity increases
Solution Approach 1:
The mandrel and carrier element serve multiple functions within the integrated device. The carrier element acts as both a gripping mechanism for the guarantee band during tear-off force measurement and as a sealing structure that forms the sealed chamber for leak testing. The mandrel provides both the force measurement reference and the structural support for the sealing mechanism. This multi-functionality reduces the number of separate components needed and simplifies the overall automated testing system while maintaining high productivity through automation.
4Productivity
If rapid automated testing is performed, then productivity increases, but measurement precision may deteriorate
Solution Approach 1:
The patent employs electronic sensing systems to replace manual mechanical measurement methods. A force sensor is integrated into the mandrel to automatically record tear-off force values, and a pressure sensor is incorporated into the sealing structure to detect pressure changes during leak testing. These electronic sensors provide precise digital measurements that are captured and processed automatically, ensuring measurement precision is maintained even during rapid automated testing at high productivity rates, eliminating the variability and time-consuming nature of manual readings.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient, automated testing of both the connection quality and tightness of closure lids, reducing waste and improving production efficiency by allowing for rapid assessment of multiple lids per minute, minimizing manual errors and enhancing reproducibility.
Implementation Method 1
a pressure measuring device to quantify tightness
Data Source
Figure 1A~1C
Figure 2A
Figure 2B
AI summary
A device for testing a connection of a tamper-evident band (3) and/or at least one fastening means of a closure lid (1) with a lid base body (2) and for testing the tightness of the lid base body (2) comprises a drive element (180) for gripping the tamper-evident band (3) and/or the at least one fastening means, a contact element (170) for the lid base body (2), wherein the drive element (180) and the contact element (170) are movable relative to each other in an interaction direction such that a tear-off force can be exerted on the tamper-evident band (3) and/or the at least one fastening means, and a force measuring device for measuring the tear-off force during the relative movement between the tamper-evident band (3) and/or fastening means and the lid base body (2).The contact element (170) has a sealing structure (178) so that a sealed chamber (10) can be formed between the contact element (170) and the cover body (2), and that supply means (176) for introducing a pressurized gas into the chamber (10) and a device for detecting a pressurized gas leak are provided.