Tucker Blade Mechanism for High-Speed Absorbent Article Folding
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Solution Overview
Problem
High-speed folding of absorbent articles often results in damage or displacement of components, such as front and back ears, due to collisions between opposing end regions during the folding process.
Innovation Solution
The use of tucker blades that rotate to redirect the central region of the absorbent article into a nip, creating a fold line and positioning the end regions to face the blades, thereby preventing direct collision and ensuring separation of the end regions during folding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If folding blades force the crotch region into a nip at high speeds, then productivity increases, but the front and back ears become damaged or displaced
Solution Approach 1:
A separate ear positioning mechanism acts as an intermediary between the folding blades and the ears. This mechanism independently positions the ears before folding occurs, preventing direct harmful interaction between the high-speed folding blades and the delicate ear components, thus resolving the contradiction between high productivity and component integrity
Solution Approach 2:
The ears are positioned in the folded configuration before the main folding operation occurs. This preliminary positioning ensures that when high-speed folding blades force the crotch region into the nip, the ears are already in their correct positions and protected from damage, allowing high productivity without compromising ear integrity
2Productivity
If production line speeds are increased to produce more articles in shorter periods, then productivity improves, but component damage and displacement during folding increases
Solution Approach 1:
The ear positioning mechanism serves as a protective intermediary that decouples the high-speed folding process from the delicate ear components. It ensures ears are properly positioned independently of the high-speed folding action, eliminating the harmful collision effect while maintaining high production rates
Solution Approach 2:
By positioning the ears in advance before the high-speed folding occurs, the system prepares the article in a protected state. This preliminary action prevents the harmful effects of high-speed folding on ear components while maintaining the high productivity benefits of increased line speeds
Data Source
AI summary
The present disclosure relates to methods and apparatuses for manufacturing absorbent articles. More particularly, the systems and methods for folding absorbent articles advancing in a converting line may be configured with tucker blades that prevent opposing end regions of absorbent articles from colliding directly with each other as the absorbent articles are being folded.