Underwear Pad Wing Folding for Precise High-Speed Coupling
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Solution Overview
Problem
Existing production methods for absorbent pads fail to reliably and precisely fold and couple wings to form a stable pants-like shape at high production speeds due to uncontrollable fluttering of wings during processing, leading to inconsistent coupling.
Innovation Solution
An apparatus with folding means that overturn and maintain wings in a stable position on the pad surface, using airflow and fingers or suction to ensure precise coupling of wings, even at high speeds, forming a stable pants-like shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the continuous web is moved forward at high production speeds through existing folding methods, then productivity is improved, but the wings become uncontrollably fluttering and coupling precision deteriorates
Solution Approach 1:
The patent applies preliminary action by positioning and stabilizing the wings before the coupling operation occurs. The folding means are configured to overturn and maintain the wings in a stable position on the pad surface upstream of the coupling point, ensuring the wings are ready and positioned correctly before the high-speed coupling process begins. This preliminary stabilization prevents fluttering during the actual coupling at high production speeds.
Solution Approach 2:
The patent introduces an intermediary mechanism (folding means with airflow and fingers/suction) that acts between the moving continuous web and the coupling operation. This intermediary system temporarily holds and stabilizes the wings in place, mediating between the high-speed production line and the precision coupling requirement, thereby enabling both high productivity and manufacturing precision.
2Ease of operation
If the wings are allowed to move freely during processing, then ease of operation is improved, but stability of wing position deteriorates causing inconsistent coupling
Solution Approach 1:
The patent applies dynamics by using a dynamic folding means system that can adapt to the moving continuous web while providing stabilization. The airflow and suction/finger mechanisms work dynamically during the high-speed production process, adjusting to maintain wing stability without restricting the overall flexibility of the processing system. The wings are stabilized only when and where needed for coupling, while remaining flexible during other processing stages.
3Device complexity
If existing folding methods are used without wing stabilization, then device complexity is reduced, but reliability of pants-shape formation deteriorates
Solution Approach 1:
The patent employs pneumatic principles by using airflow to overturn and position the wings, and suction to maintain them in a stable position. These pneumatic mechanisms are integrated into the folding means system, providing reliable wing stabilization without requiring complex mechanical structures. The use of air-based control simplifies the overall system while significantly improving the reliability of pants-shape formation.
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
Ensures reliable and precise folding and coupling of wings to form a stable pants-like shape, maintaining consistency in production even at high speeds, enhancing the reliability of the production process.
Implementation Method 1
at least one airflow (10) integrated on board said path of forward motion and adapted to fold a wing of said semifinished product by 90° lifting it with respect to the surface (100) of the semifinished product
Implementation Method 2
one or more areas provided with suction to maintain the wings in said overturned position on the surface (100) of the semifinished product
Data Source
AI summary
A method for folding pads shaped as pants includes overturning the first wing and the second wing of a semifinished product provided with Velcro by 180° on a plane of the pad and maintaining the first wing and the second wing in that position until the pad shaped as pants is closed.