Mesh Bag Closure Bulge to Prevent Clip Slippage
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Solution Overview
Problem
Existing methods for closing mesh bags, such as using ancillary closing elements like clips, straps, or adhesive tapes, suffer from issues like slippage and increased manufacturing costs, particularly when handling bulky products, and can complicate automated processes.
Innovation Solution
The method involves bonding packed yarns of the mesh bundle together to form a bulge that acts as a retainer, preventing slippage of the ancillary closing element relative to the mesh, while maintaining compatibility with automated processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an ancillary closing element (clip, strap, or adhesive tape) is used to close a mesh bag, then the bag can be sealed, but the closing element may slip relative to the mesh when the bag contains bulky products or is subjected to pulling forces
Solution Approach 1:
The closing system is segmented into two functional parts: the ancillary closing element (clip/strap) and the integrated mesh bundle structure with bulge. The bulge acts as a separate retention feature that works in conjunction with the closing element, dividing the closure function into sealing (by the closing element) and anti-slip (by the bulge), thereby improving reliability without requiring complex modification of the closing element itself
Solution Approach 2:
The mesh yarns are bonded together to form the bulge structure before the ancillary closing element is applied to the bag. This preliminary formation of the retention feature ensures that when the closing element is later applied, the bulge is already in position to prevent slippage, improving closure security without adding complexity to the closing operation
2Reliability
If more material is used to manufacture ancillary closing elements, then the closing security increases, but the manufacturing cost increases
Solution Approach 1:
The retention function is extracted from the ancillary closing element and transferred to the mesh structure itself through the formation of the bulge. Instead of making the closing element more substantial and expensive, the mesh yarns are bonded to create a retention feature that works with the existing closing element, reducing material usage while maintaining closing security
Solution Approach 2:
The solution creates a composite structure where the mesh yarns are bonded together to form the bulge, combining multiple yarns into a unified retention feature. This composite mesh structure works in conjunction with the ancillary closing element to provide secure closure without requiring additional substantial materials in the closing element itself
3Reliability
If the ancillary closing element is designed to prevent slippage, then closure security improves, but the automated closing process becomes more complex or time-consuming
Solution Approach 1:
The bulge is formed by bonding mesh yarns in advance, before the automated closing operation. This preliminary preparation of the retention feature means that during automated bag closing, the process remains simple and fast - the closing element is simply applied to the pre-prepared mesh bundle with the bulge, maintaining productivity while improving closure security
Solution Approach 2:
The mesh structure itself provides the retention function through the bulge, eliminating the need for complex mechanisms in the ancillary closing element. The bulge passively prevents slippage through its geometric structure, requiring no additional activation or complex operation during automated closing, thereby maintaining high productivity
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 enhances the retention of the closing element, significantly increasing the number of pulls the bag can withstand without opening, even when using less material and reducing operational time.
Implementation Method 1
bonding packed yarns of the mesh bundle together to form at least one bulge
Data Source
AI summary
A method for closing a mesh bag including applying an ancillary closing element around a transversely collected portion of the bag, tightly girdling the same, thereby determining on a first side of the closing element a storage portion of the bag and on a second side of the closing element, adjacent thereto, a mesh bundle. The method further including the operation of bonding yarns of the mesh bundle together to form at least one bulge that acts as a retainer as it prevents, by abutment with the ancillary closing element, the mesh bundle from passing from the second side to the first side of the ancillary closing element.