Rotating Drum Suction for Absorbent Structure Manufacturing
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Solution Overview
Problem
Existing apparatuses for manufacturing bodily exudates absorbent structures fail to adequately prevent superabsorbent polymer particles or fluff pulp from scattering, leading to potential deterioration of bond strength between sheets.
Innovation Solution
An apparatus with a rotating drum conveying means featuring depressions and through-holes, suction mechanism, and sealing projections to ensure absorbent materials are retained within specific regions, preventing scattering and ensuring uniform distribution and bonding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If particles are fed into depressions of the conveying means, then particles are prevented from scattering, but particles may still spill out from the depressions into bond regions
Solution Approach 1:
A suction means is introduced as an intermediary mechanism between the depressions and the particles. The suction means creates a negative pressure field that actively holds particles within the depressions, preventing them from spilling into bond regions. This mediator ensures both precise particle positioning and reliable bonding by controlling particle movement during the bonding process.
Solution Approach 2:
The invention employs pneumatic principles through the suction means to control particle positioning. By applying suction pressure through the suction means, particles are held firmly within the depressions without mechanical constraints, allowing for reliable bonding while maintaining manufacturing precision.
2Reliability
If particles are retained in depressions, then bond strength is maintained, but manufacturing complexity increases
Solution Approach 1:
The conveying means is designed with multi-functionality: it not only conveys the sheet but also forms depressions for particle retention and integrates suction means for particle holding. This universal design consolidates multiple functions into a single system, maintaining bond strength while minimizing the need for separate particle retention mechanisms.
Solution Approach 2:
The suction means is integrated directly into the conveying means structure, merging the particle retention function with the conveying function. This combination reduces device complexity by eliminating separate particle retention mechanisms while ensuring reliable bond strength through effective particle positioning.
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
The apparatus effectively retains absorbent materials within designated areas, maintaining bond strength and ensuring uniform absorption capacity across the absorbent structure, preventing material scatter and enhancing manufacturing efficiency.
Implementation Method 1
a suction means is installed on the side of the inner surface of the first conveying means adapted to provide a suction effect directed from the side of the outer surface to the side of the inner surface
Data Source
AI summary
An apparatus for manufacturing bodily exudates absorbent structures has a rotating drum to convey a first continuous sheet, a feeding mechanism, a second conveying mechanism to convey a second continuous sheet and a sealing mechanism to join the first and second continuous sheets. The rotating drum is formed on its peripheral surface with depressions, leaving a non-depressed peripheral surface segment. Each of the depressions is formed in a central region with a central through-hole extending through each depression from an outer surface to an inner surface of the rotating drum. Within the rotating drum, a suction mechanism is installed to provide a suction effect directed from the outer surface toward the inner surface of the rotating drum so that the first continuous sheet is formed with a first concave region having been deformed along each depression and a second concave region having been deformed toward the central through-hole.