Absorbent Body Manufacturing with Flat Conveyors for Powder Containment
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Solution Overview
Problem
Existing absorbent body manufacturing processes suffer from the scattering of granular powder due to centrifugal force on cylindrical drums, leading to inefficiencies and potential contamination.
Innovation Solution
The use of flat slope surfaces for conveying sheets and distributing absorbent powder, combined with a stacking mechanism that prevents scattering by utilizing negative pressure and a V-shaped valley configuration to ensure the powder is retained between layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If granular powder is sprinkled on cylindrical drum surface, then absorbent layer formation is achieved, but centrifugal force causes powder to scatter around the apparatus
Solution Approach 1:
The patent replaces the cylindrical drum surface with a flat conveyor belt surface. This eliminates the curved surface that generates centrifugal force, thereby preventing powder scattering while maintaining the ability to form absorbent layers through controlled powder distribution on the flat surface
Solution Approach 2:
The patent substitutes the mechanical cylindrical drum system with a flat conveyor belt system. This replacement eliminates the centrifugal force mechanism that causes powder scattering, while still achieving powder distribution and absorbent layer formation through alternative means such as gravity-fed distribution and suction mechanisms
2Object-generated harmful factors
If flat slope surfaces are used for conveying sheets, then powder scattering is prevented, but conveyor design complexity increases
Solution Approach 1:
The patent divides the conveyor system into separate functional segments: a first conveyor for the first sheet, a second conveyor for the second sheet, and a stacking mechanism. Each segment has a specific function (conveying, distributing, stacking), which simplifies the overall design compared to a single complex cylindrical drum system while preventing powder scattering through flat surface geometry
3Ease of manufacture
If granular powder is distributed on sheet surfaces, then absorbent layers are formed, but powder may drop and scatter if not properly contained
Solution Approach 1:
The patent uses suction forces to counteract gravity and prevent powder from dropping off the sheet surfaces. The suction mechanism creates a pressure differential that holds the powder in place on the flat conveyor belt, ensuring reliable powder containment while allowing for effective absorbent layer formation
Solution Approach 2:
The patent introduces suction forces as an intermediary mechanism between the distributed powder and the conveyor belt. This intermediary force field holds the powder in place, preventing scattering while maintaining the absorbent layer structure. The suction acts as a mediating force that balances gravity and prevents powder dropout
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
Prevents scattering of granular powder, ensuring efficient formation and stacking of absorbent layers without contamination, allowing for controlled manufacturing of absorbent bodies with varied thickness and shapes.
Implementation Method 1
a first conveyor C1 that conveys an air-permeable first sheet S1 while sucking the first sheet S1 along a flat first slope surface F1
Implementation Method 2
as the granular powder is sprinkled on the cylindrical surface of the drum, centrifugal force generates to each absorbent layer along the cylindrical surface
Implementation Method 3
a stacking part that stacks the first sheet S1 conveyed by the first conveyor C1 and the second sheet S2 conveyed by the second conveyor C2 in such a manner as to cause the first absorbent layer L1 of the first sheet S1 and the second absorbent layer L2 of the second sheet S2 to face each other
Data Source
AI summary
A manufacturing apparatus for an absorbent body including: a first conveyor that conveys an air-permeable first sheet while sucking the first sheet along a flat first slope surface; a second conveyor that conveys an air-permeable second sheet while sucking the second sheet along a flat second slope surface having a slope opposite to the first slope surface; a first distribution device that forms a first absorbent layer in the first sheet by distributing absorbent powder on an upper surface of the first sheet being conveyed along the first slope surface; a second distribution device that forms a second absorbent layer in the second sheet by distributing absorbent powder on an upper surface of the second sheet being conveyed along the second slope surface; and a stacking part that stacks the first sheet conveyed by the first conveyor and the second sheet conveyed by the second conveyor in such a manner as to cause the first absorbent layer of the first sheet and the second absorbent layer of the second sheet to face each other.