Closure Assembly Valve Induction Sealing
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Solution Overview
Problem
Existing closure assemblies for squeeze bottles require complex production processes and additional material for clamping mechanisms, which increase costs and complexity, and often necessitate separate assembly steps for the valve and seal, complicating the filling and sealing process.
Innovation Solution
A closure assembly featuring a valve made of flexible foil with a loop-shaped peripheral section and a metallic induction element for induction sealing, allowing for a simpler production process without clamping parts, where the valve can be attached to the closure cap after filling, using existing induction sealing equipment, and the seal can be integrated in a single production step.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a resilient self-closing valve is clamped in the closure cap body part using a separate clamping ring or local transformation, then the valve is securely fixed in position, but the device complexity and material usage increase
Solution Approach 1:
The valve and induction sealing element are merged into a single integrated component. The valve comprises a peripheral section with induction sealing capability that directly bonds to the closure cap body part, eliminating the need for separate clamping rings or local transformations. This integration reduces device complexity while maintaining secure fixation through the induction sealing bond.
Solution Approach 2:
The mechanical clamping system (clamping rings or local transformations) is replaced with an induction sealing system. The valve's peripheral section contains induction sealing capability that creates a strong bond with the closure cap body part through electromagnetic induction, substituting mechanical fastening with a thermal/electromagnetic bonding process that reduces overall assembly complexity.
2Reliability
If a separate clamping ring is used to fix the valve in the cap, then the valve position is secured, but additional material and production steps are required
Solution Approach 1:
The valve and induction sealing element are combined into one component. The valve includes an integrated peripheral section with induction sealing capability, eliminating the need for separate clamping rings. This merger reduces material usage while maintaining position stability through the induction sealing bond between the valve's peripheral section and the closure cap body part.
3Reliability
If the closure assembly is produced separately and combined with the squeeze bottle at the filling location, then hygiene requirements are met, but the production process becomes more complex and time-consuming
Solution Approach 1:
The valve is pre-assembled with the closure cap body part using induction sealing before the filling process. This preliminary action allows the valve to be securely attached in advance under controlled conditions, then the pre-assembled closure assembly can be quickly attached to the filled squeeze bottle at the filling location, maintaining hygiene compliance while improving overall production efficiency.
4Reliability
If traditional clamping mechanisms are used to attach the valve, then secure fixation is achieved, but production costs increase due to additional materials and processes
Solution Approach 1:
The mechanical clamping system is replaced with an induction sealing system. The valve's peripheral section contains induction sealing capability that creates a secure bond with the closure cap body part through electromagnetic induction and thermal bonding. This substitution eliminates the need for separate clamping rings or local transformations, reducing material costs and simplifying the manufacturing process while maintaining attachment security.
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
This solution reduces material usage, simplifies the production process, and allows for efficient attachment of the valve and seal using existing equipment, enhancing flexibility and reducing production costs while maintaining effective sealing and dispensing functionality.
Implementation Method 1
a first induction element, which induction element is arranged in said recess of the closure cap body part for induction sealing the valve to the closure cap body part
Implementation Method 2
which induction element is a, preferably ring-shaped, metallic foil with at least a loop shaped peripheral section that overlaps with the loop shaped peripheral section of the valve and the loop shaped attachment surface of the closure cap body part
Implementation Method 3
The valve is made of a thermoplastic material, in particular a thermoplastic foil material
Data Source
Figure 1
Figure 2a~2b
Figure 3
AI summary
The present invention relates to closure assembly (1) comprising a valve (4) for containing a substance in a squeeze bottle (2), a multi-layer material for providing a valve for such a closure assembly, a method for providing such a multi-layer material and a method for providing such a closure assembly. The closure assembly comprises a closure cap (3) with a cap part (3b) and a body part (3a), a valve (4) arranged in the body part of the closure cap, and an induction element (5). The induction element is arranged in the closure cap body part for induction sealing a loop shaped peripheral section (4a) of the valve to a loop shaped attachment surface of the closure cap body part.