Paper-Piece Stirring Apparatus With Elevated Blades to Prevent Clumping
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Solution Overview
Problem
Existing stirring apparatuses for recycled paper production often cause paper pieces to clump together, leading to increased load on rotary driving devices due to compression between the stirring member and the bottom surface, resulting in uneven supply to processing portions.
Innovation Solution
A stirring apparatus with a rotary body having blades and a protruding member that rotates to stir paper pieces, preventing compression and lump formation, and includes a sealing member to prevent paper from entering the gap between the rotary body and the bottom surface, ensuring stable and uniform supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a stirring member rotates on the bottom surface to stir paper pieces, then paper pieces are fed to a subsequent processing portion, but paper pieces are compressed between the stirring member and bottom surface causing clumping
Solution Approach 1:
The stirring member is divided into multiple blade elements arranged radially, creating segmented stirring zones that prevent paper compression by distributing stirring action across multiple discrete elements rather than a continuous surface
Solution Approach 2:
The stirring member is elevated above the bottom surface, transitioning from a two-dimensional surface contact to a three-dimensional configuration with vertical clearance, eliminating compression between the stirring member and bottom surface
2Quantity of substance
If paper pieces are compressed between stirring member and bottom surface, then a predetermined amount of paper pieces are supplied to processing portion, but load on rotary driving device increases
Solution Approach 1:
The harmful compression function is extracted from the stirring member by elevating it above the bottom surface, removing the source of excessive load while preserving the beneficial stirring and feeding functions
Solution Approach 2:
The clearance parameter between the stirring member and bottom surface is changed from zero (contact) to a positive value, fundamentally altering the interaction mechanics to reduce friction and compression forces
3Productivity
If paper pieces are compressed and clumped, then lump-shaped paper pieces are sent to subsequent processing portion, but stable supply cannot be maintained
Solution Approach 1:
The rotating blades create dynamic mechanical action that prevents paper pieces from settling and clumping, maintaining uniform distribution through continuous motion-induced agitation
Solution Approach 2:
The elevated stirring member acts as an intermediary that stirs and distributes paper pieces without directly compressing them against the bottom surface, mediating between the storage function and feeding function
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 prevents lump formation and ensures a stable, uniform supply of paper pieces to processing portions, reducing the load on the rotary driving device and maintaining consistent processing efficiency.
Implementation Method 1
a sealing member 192 disposed between the rotary portion 190 and the bottom surface 182
Data Source
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AI summary
A stirring apparatus (130) includes a case (170) that houses fiber pieces containing fibers, and a rotary body (172) that is disposed inside the case and that stirs the fiber pieces, in which the rotary body includes a rotary portion (190) that forms a portion of a bottom surface of the case and that rotates, and blades (196) that stand upright on the rotary portion.