Screwed Cover Foil Cutting Mechanism for Aseptic Packages
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Solution Overview
Problem
Current aseptic liquid cardboard package covers with screwable systems face issues such as incomplete opening of the flowing hole, foil obstruction, and inefficient resource use due to complex designs and multiple parts, leading to restricted product flow and economic inefficiencies.
Innovation Solution
A cover embodiment featuring a cylindrical ridge, flat plates connected by axial hinges and tension springs, and a spiral friction ramp that cuts and folds the foil within the package, allowing for a homogeneous opening of at least 90% of the inner wall, reducing foil obstruction and simplifying the flow mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a screwable cover system with multiple parts is used to ensure asepticity and secure closure, then reliability and impermeability are improved, but device complexity and the number of parts increase
Solution Approach 1:
The cover is divided into an upper cover and a lower cover that can be separated. The lower cover contains the foil-cutting apparatus with flat plates and incisors, while the upper cover provides the screwable closure. This segmentation allows each part to perform its specific function efficiently while maintaining overall reliability.
Solution Approach 2:
The foil-cutting apparatus, including flat plates and incisors, is nested within the lower cover structure. The tension springs and axial hinges are integrated into the cover assembly, reducing the need for separate external components while maintaining functionality.
2Ease of operation
If cylindrical ridges with incisors are rotated to cut the foil, then the foil can be pierced effectively, but the cover height increases making storage and transport difficult
Solution Approach 1:
Instead of rotating the entire cover or using a vertical rotation mechanism that increases height, the flat plates with incisors are designed to rotate horizontally within the lower cover. The axial hinges enable this horizontal rotation, inverting the traditional vertical rotation approach and reducing cover height requirements.
Solution Approach 2:
The foil-cutting mechanism transitions from vertical rotation to horizontal rotation within the plane of the lower cover. The flat plates rotate around axial hinges, changing the dimension of rotation from the vertical axis to the horizontal axis, thereby reducing the required cover height.
3Ease of operation
If multiple flat plates with incisors are used to cut the foil, then the foil can be broken into pieces, but the amount of raw material increases reducing economic efficiency
Solution Approach 1:
The invention extracts and removes the foil from the flowing mouth area after cutting, taking it completely away from the product flow path. This eliminates the need for excessive foil material while ensuring complete opening, as the cut foil pieces are removed rather than left to obstruct the flow.
Solution Approach 2:
The cut foil pieces are discarded from the flowing mouth area after serving their sealing function. The tension springs automatically facilitate the removal of cut foil pieces, allowing the system to discard the used foil material efficiently without wasting additional resources.
4Ease of operation
If the foil is pressed downward to pierce the package, then the opening process is initiated, but the flowing hole opening is incomplete restricting product flow
Solution Approach 1:
The flat plates with incisors are pre-positioned and connected to the lower cover structure before opening. The tension springs are pre-loaded to provide the necessary downward pressing force. When opening is initiated, the preliminary positioning and pre-loaded springs ensure complete and homogeneous opening of the flowing hole, eliminating the need for additional pressing actions.
Solution Approach 2:
The foil-cutting and opening process is made continuous through the integrated flat plate mechanism. As the flat plates rotate and press downward, they continuously cut and open the foil throughout the opening process, ensuring homogeneous opening of the flowing hole without interruption or incomplete opening that would restrict product flow.
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 enhances product flow ease by ensuring a homogeneous opening of the flowing hole, reduces material usage, and improves storage and handling efficiency by minimizing the number of parts and raw material consumption.
Implementation Method 1
spiral friction ramp located on the inner part of the upper cover... when the spiral friction ramp is rotated in the cover-opening direction, it applies a pressure in the downward direction
Implementation Method 2
tension spring connected to the cylindrical wall in the lower cover... The connection of said flat plates to the cylindrical inner wall with an asymmetrical parallel angle via axial hinge is provided by means of the tension spring
Data Source
AI summary
The present invention relates to a cover embodiment (101) developed to be used especially in aseptic cardboard liquid packages (15) and to provide ease of use and it provides the flowing mouth to open in a maximum level by creating a homogeneous structure on the liquid flowing mouth thanks to the items located inside and enabling the aluminum foil part left inside the cardboard to be compressed between the package and the cover embodiment.