Pouring Element Conical Intermediate Region Cutting
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Solution Overview
Problem
Existing pouring elements for composite packages face issues with incomplete separation of the closure part during opening, leading to residual pieces and a loose closure, due to material combinations that result in poor plastic deformation and force transmission inefficiencies.
Innovation Solution
The cutting element and closure part are designed with a projection parallel to the central axis, striking the conical ring-shaped intermediate region for controlled separation, and the weakening zone is optimized to ensure clean and complete separation, with a design that includes a cutting tooth ground on the inside and a radially thickened cutting element for improved force transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cutting element is designed to separate the closure part along the weakening zone, then the opening process is simplified, but incomplete separation occurs leading to residual pieces and loose closure
Solution Approach 1:
The closure part is segmented into distinct functional zones: a central region, a conical intermediate region, and a ring-shaped weakening zone. This segmentation allows the cutting element to interact with specific zones at different stages, ensuring complete separation while maintaining control during the opening process
Solution Approach 2:
The conical intermediate region is designed to be struck by the cutting element before the actual separation along the weakening zone occurs. This preliminary action initiates the separation process and guides the cutting element's movement, ensuring that the subsequent separation along the weakening zone is complete and clean
2Strength
If material combinations are used for the closure part, then structural integrity is maintained, but plastic deformation becomes poor resulting in force transmission inefficiencies
Solution Approach 1:
Different regions of the closure part are designed with different geometric properties optimized for their specific functions: the central region maintains structural integrity, the conical intermediate region is optimized for force reception and transmission, and the weakening zone is designed for clean separation. This local quality differentiation ensures both strength and reliable force transmission
3Productivity
If the cutting element moves through the closure part, then the spout is opened, but the closure part does not fold away properly leaving residual pieces
Solution Approach 1:
The conical intermediate region serves as a preliminary action zone that guides the cutting element's movement and initiates the separation process. By striking this conical region first, the cutting element is properly positioned and the closure part is pre-conditioned for clean folding away along the weakening zone
Solution Approach 2:
The conical intermediate region introduces a curved geometric form that facilitates smooth force transmission and guides the closure part's deformation. This curvature helps the closure part fold away cleanly rather than creating residual pieces, while maintaining efficient opening speed
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 design ensures a clean and controlled opening process with complete separation of the closure part, preventing residual pieces and ensuring the closure folds away properly, enhancing the reliability and efficiency of the opening mechanism.
Implementation Method 1
the cutting tooth of the cutting element separates the closure part approximately in the region of the weakening zone
Implementation Method 2
This separation process is a combination of separation, plastic deformation and material displacement
Implementation Method 3
the cutting element starts to fold the closure part to the side and thus release the spout for the content. Folding away is carried out with the aid of the remaining piece of the weakening zone, which has not been separated, as a pivot axis
Data Source
AI summary
Please replace the Abstract at page 19 with the following replacement paragraph:Illustrated and described is a pouring element for a composite package, includinga main body with a flange, a hollow cylindrical spout, which defines a central axis, and a closure part formed in the spout, which runs substantially orthogonal to the central axis, with a central region and a weakening zone running in a ring-shaped manner around the central region, wherein a conical ring-shaped intermediate region is formed between the weakening zone and central region,a hollow cylindrical cutting element movably guided in the spout with at least one cutting tooth for severing the weakening zone to open the spout and composite package,a reclosable screw cap, which serves to drive the cutting element when the composite package is opened for the first time.Two alternative composite packages for liquid foodstuffs are also described, which are provided such that a pouring element according to the invention is integrated into the gable region of the composite package. In order to enable a clearly defined and smooth cutting process, the cutting element and the closure part are designed such that at least one part of a projection of the cutting tooth lies parallel to the central axis on the intermediate region.