Mesh Separation Control for Uniform Foreign Matter Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing separation devices lack sufficient research on the operating conditions of ejection and suction ports, leading to uneven removal of foreign matter when there is variability in the supply amount of raw materials.
Innovation Solution
A separation device with a rotating member having a mesh surface, equipped with weight detection and a controller that adjusts the operation based on detected weight, ensuring consistent removal of foreign matter and uniformity in the supply of defibrated material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the separation device uses fixed operating conditions for ejection and suction ports, then the device structure is simple, but the ability to remove foreign matter becomes uneven when raw material supply amount varies
Solution Approach 1:
The patent applies dynamics by making the rotation speed of the mesh screen variable rather than fixed. The rotation speed is adjusted dynamically based on the supply amount of raw materials detected by a weight detection section, allowing the separation device to adapt to varying material flow conditions and maintain consistent foreign matter removal performance.
Solution Approach 2:
The patent implements feedback control where a weight detection section monitors the supply amount of raw materials and provides this information to a controller. The controller then adjusts the rotation speed of the mesh screen accordingly, creating a closed-loop system that automatically compensates for variations in material supply to maintain reliable foreign matter removal.
2Productivity
If the rotation speed of the mesh is increased to handle higher material supply, then productivity increases, but the uniformity of foreign matter removal decreases
Solution Approach 1:
The rotation speed of the mesh screen is made dynamic and adjustable based on actual material supply conditions. When material supply increases, the rotation speed increases proportionally to maintain processing capacity while ensuring that the mesh screen still provides adequate residence time for foreign matter removal, thus maintaining both productivity and uniformity.
Solution Approach 2:
The patent changes the operational parameter (rotation speed) of the mesh screen based on the supply amount of raw materials. By adjusting this parameter dynamically, the system maintains optimal separation performance across different production rates, ensuring that manufacturing precision is preserved even when productivity requirements change.
3Productivity
If the mesh screen rotates faster to match variable material supply, then the processing capacity increases, but the quality consistency of defibrated material decreases
Solution Approach 1:
A weight detection section monitors material supply and provides feedback to a controller that adjusts the mesh screen rotation speed. This feedback mechanism ensures that processing capacity scales with material supply while maintaining quality consistency, as the rotation speed is continuously optimized to match actual processing conditions rather than operating at fixed high speed.
Solution Approach 2:
The system transitions from static fixed-speed operation to dynamic variable-speed operation. The mesh screen rotation speed adapts in real-time to material supply conditions, allowing the system to maintain optimal separation performance and quality consistency across varying productivity requirements.
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 device stabilizes the ability to remove foreign matter, maintaining the quality of the defibrated material and the resulting sheets by adjusting the rotation speed of the mesh based on the weight of the supplied material, thereby ensuring consistent whiteness and quality of the manufactured sheets.
Implementation Method 1
the suction portion being provided on a side of the second surface of the rotating member and sucking the defibrated material via the mesh to remove foreign matter
Data Source
AI summary
A separation device includes: a material supply section that supplies a material containing a fiber; a defibrating section that defibrates the material supplied from the material supply section; a separation section that includes a rotating member, a suction portion, and a collection section, the rotating member having a first surface and a second surface that are in a front and back relationship, being at least partially composed of a mesh, and to which a defibrated material generated in the defibrating section is supplied onto the first surface, the suction portion being provided on a side of the second surface of the rotating member and sucking the defibrated material via the mesh to remove foreign matter, the collection section collecting the defibrated material from which the foreign matter on the first surface has been removed; a weight detection section that detects a weight of the material supplied by the material supply section; and a controller that controls an operation of the separation section based on a detection result of the weight detection section.