Capsule Pull-Off Force Measurement with Anti-Tilt Support
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Solution Overview
Problem
Existing measuring apparatuses for the pull-off force of capsule connecting elements can only measure bridge elements and not tether elements accurately, leading to inaccurate force measurements due to tilting of the capsule, which affects the reliability of tamper evident band quality assessment.
Innovation Solution
A measuring apparatus with an abutting surface to prevent capsule tilting during force application, allowing for simultaneous measurement of both bridge and tether elements' pull-off forces, and a band disengagement mechanism to maintain the tamper evident band's integrity after breakage, enabling reliable force detection and quality assessment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a piston applies force to the bottom surface of the end wall to measure pull-off force, then the bridge elements can be fractured and measured, but the capsule tilts with respect to the longitudinal axis, causing inaccurate measurements and preventing measurement of tether elements
Solution Approach 1:
A support surface is introduced as an intermediary element between the capsule and the measurement apparatus. This support surface prevents capsule tilting by providing a stable reference plane during force application, ensuring accurate and reliable measurements of both bridge and tether elements without directly interfering with the force measurement process
Solution Approach 2:
The support surface creates an equipotential condition for the capsule during measurement by ensuring uniform force distribution and preventing tilting. This maintains the capsule in a stable position throughout the measurement process, eliminating measurement errors caused by angular deviation
2Adaptability or versatility
If the piston continues its stroke after bridge elements break, then the capsule can be further tested, but the tilted capsule causes the piston to fail to subject tether elements to tensile stress
Solution Approach 1:
The measurement apparatus is designed with universal functionality to measure both bridge elements and tether elements. The support surface enables the same apparatus to accurately measure different types of connecting elements (bridge and tether) without requiring separate measurement systems or complex operational procedures
Solution Approach 2:
The support surface automatically maintains capsule alignment throughout the measurement process. Once the capsule is positioned on the support surface, it self-corrects and maintains proper orientation during the entire stroke, eliminating the need for active control mechanisms or complex operational interventions
Data Source
AI summary
A measuring apparatus and method are described for measuring the breaking force of frangible arrangement connecting a capsule with a closed annular shaped guarantee band, with an annular ridge axially holding the guarantee band, a pusher element that pushes the capsule for breaking the frangible arrangement, sensor for detecting the traction force exerted by the pusher element, a lifting and abutment device arranged to feed the capsule to the annular projection, and a disengagement portion for removing the guarantee band from the annular projection, after the breakage of the frangible media, leaving the closed annular shape of the guarantee band intact.