Segmented Blade Agitator for Uniform Fiber Dispersion
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Solution Overview
Problem
Existing dry system sheet manufacturing apparatuses face challenges in effectively untangling defibrated fibers, leading to clumping and unstable dispersion, which results in non-uniform thickness of the accumulated material and sheets.
Innovation Solution
A fiber material accumulating apparatus with a rotating body featuring blades that extend along its axis and have openings for agitation, ensuring the fibers are untangled and dispersed uniformly through a porous screen, preventing clumping and stabilizing the dispersion process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a rotating body with radial blades is used to agitate defibrated matter inside a screen, then the defibrated matter can be moved and agitated, but the fibers may not be untangled well and clumps are formed resulting in unstable dispersion
Solution Approach 1:
The blade is segmented into multiple extending portions along the rotational axis, creating multiple openings that allow material to pass through at different levels. This segmentation prevents clumping by distributing the agitation action throughout the blade structure, enabling better fiber untangling while maintaining productivity.
Solution Approach 2:
The blade design incorporates local quality by having extending portions with openings at specific locations along the rotational axis. This allows different sections of the blade to perform specialized functions - some areas for agitation, others for material passage - thereby achieving both effective mixing and uniform fiber dispersion simultaneously.
2Device complexity
If conventional blades without openings are used, then the structure is simple, but the material moves in lumps and uniform thickness cannot be obtained
Solution Approach 1:
The blade is divided into multiple extending portions with openings, creating a segmented structure that maintains relative simplicity while enabling uniform material flow. The openings allow material to pass through at multiple points, preventing lump formation and ensuring consistent thickness without excessive structural complexity.
Solution Approach 2:
The blade incorporates openings that function similarly to porous structures, allowing material to pass through the blade itself rather than just around it. This enables controlled dispersion of fibers while maintaining a relatively simple overall blade structure, achieving uniform thickness without excessive complexity.
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 achieves stable dispersion and uniform thickness of the accumulated material, resulting in high-quality sheets with reduced thickness irregularities.
Implementation Method 1
a rotating body which is provided inside the storage section and includes a blade which rotates to agitate the material
Implementation Method 2
a storage section including a porous screen
Implementation Method 3
the defibrated matter supplied to the inside of the screen passes through the screen while being untangled inside the screen by the rotation of the rotating body, is dispersed in a gas, and accumulates on a belt
Data Source
AI summary
A fiber material accumulating apparatus which includes a storage section including a porous screen, a supply section which supplies a material containing fibers to the storage section, and a rotating body which is provided inside the storage section and includes a blade which rotates to agitate the material, in which the blade includes an extending portion extending along a rotational axis of the rotating body, and an opening through which the material passes when the blade rotates.