Application Bell for Heat-Sensitive Closure Caps
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Solution Overview
Problem
Conventional methods fail to effectively apply heat-sensitive closure capsules to cylindrical vessels without deformation or damage, especially at the upper tolerance limit, and lack effective anti-counterfeiting measures, as they are unstable and require precise fitting, making mechanized application economically challenging.
Innovation Solution
A device with an application bell that fits the closure capsule's outer contour, featuring a conical shoulder and pneumatic or mechanical retaining mechanisms, allows for precise fitting and secure attachment to the vessel without deformation, utilizing materials like PTFE or POM for low friction and easy machining.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional methods are used to apply closure capsules to cylindrical vessels, then the application process can be simplified, but the closure capsules deform or are damaged especially at upper tolerance limits
Solution Approach 1:
The application bell serves as an intermediary device between the closure capsule and the vessel. It provides a controlled interface that guides the capsule onto the vessel without direct manual handling, preventing deformation while maintaining simplicity. The bell's contoured interior matches the capsule shape, ensuring proper positioning and force distribution during application.
Solution Approach 2:
The patent replaces manual mechanical application with a controlled pneumatic system. Compressed air is used to eject the closure capsule from the application bell onto the vessel, providing consistent, deformation-free application force. This substitution eliminates variability in manual application while maintaining ease of operation.
2Strength
If heat bonding methods are used to attach closure capsules, then strong attachment is achieved, but heat-sensitive products are damaged
Solution Approach 1:
The patent replaces thermal bonding mechanisms with mechanical attachment using an application bell and pneumatic ejection system. The closure capsule is physically pressed onto the vessel opening through the bell, achieving secure attachment without heat exposure. This substitution eliminates the harmful thermal effect while maintaining attachment strength.
3Reliability
If closure capsules are made unstable for anti-counterfeiting purposes, then tamper protection is enhanced, but the capsules become difficult to apply mechanized
Solution Approach 1:
The application bell acts as a mediator that handles the unstable closure capsules during the application process. It provides support and controlled positioning, allowing unstable capsules to be transferred reliably from the storage container to the vessel. The bell's contoured interior matches the capsule shape, ensuring proper orientation and placement without requiring complex automated handling systems.
Solution Approach 2:
The patent uses pneumatic ejection to automate the application of unstable closure capsules. Compressed air is introduced into the application bell to eject the capsule onto the vessel, providing consistent, controlled force that handles the instability of the capsules. This pneumatic mechanism enables reliable automated application without complex mechanical grippers or positioning systems.
4Manufacturing precision
If closure capsules are precisely adapted to vessel dimensions, then fit quality is improved, but application force required increases and may damage the capsule
Solution Approach 1:
The application bell serves as a force-distributing intermediary between the application mechanism and the closure capsule. Its contoured interior matches the capsule shape, distributing the application force evenly across the capsule surface. This prevents localized stress concentrations that could damage the precisely adapted capsule while still achieving secure attachment to the vessel.
Solution Approach 2:
The patent replaces direct mechanical pressing with pneumatic ejection. Compressed air provides a distributed, controlled force that pushes the closure capsule onto the vessel without concentrated mechanical pressure. This substitution reduces the risk of damaging the capsule during application while maintaining precise fit quality.
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 quick, damage-free application of closure capsules with precise fit and enhanced stackability, facilitating mechanized and economic application, while ensuring effective anti-counterfeiting through secure attachment and label destruction upon opening.
Implementation Method 1
The closure capsule is secured in the application bell
Implementation Method 2
a device for applying snap-on closure caps to a container
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a device and a method for attaching a tightly fitting closure cap (1) to a substantially cylindrical vessel, which has an opening that can be closed by means of a closure. The closure cap (1) surrounds a part of the outer contour of the vessel including the closure in a tightly fitting manner. An attaching bell (11) is provided for pressing the closure cap (1) onto the vessel. The attaching bell is designed as a hollow body. The inner contour of the attaching bell corresponds to the outer contour of the closure cap in a tightly fitting manner. The closure cap (1) is inserted into the attaching bell (11), the attaching bell is pressed onto the vessel together with the closure cap (1) located in the attaching bell, and then the attaching bell (11) is lifted back up, wherein the closure cap (1) remains on the vessel and surrounds a part of the outer contour of the vessel in a tightly fitting manner, i.e., in a form-fitting manner.