Brush-like Rotor Powder Supply Device for Electrode Manufacturing
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Solution Overview
Problem
Existing powder supplying devices face challenges in maintaining a constant powder supply and even dispersion, as the flowability of powder is affected by shearing forces, leading to particle breakdown and clogging issues.
Innovation Solution
A powder supplying device with a brush-like rotor and mesh body that prevents particle breakdown and clogging, ensuring stable and even powder distribution by sweeping off adhered powder and using corona discharge for improved dispersion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rotor applies shearing force to break up and disperse powder, then powder dispersion is improved, but particles are broken down into microparticles causing flowability deterioration
Solution Approach 1:
The patent replaces the traditional mechanical rotor that applies shearing force with a vibration mechanism that uses vibrational energy to disperse powder. This substitution eliminates the harmful shearing action that breaks particles while maintaining effective powder dispersion through vertical vibrations of the chute and rotor assembly.
Solution Approach 2:
The patent employs mechanical vibration by vibrating the chute and rotor assembly at specific frequencies to disperse powder without applying destructive shearing forces. The vibration causes powder particles to move and separate naturally, achieving dispersion while preserving particle integrity and flowability.
2Productivity
If powder is continuously supplied through a chute with vibration, then powder supply continuity is improved, but the amount of powder supplied becomes inconsistent due to varying flowability
Solution Approach 1:
The patent incorporates a feedback mechanism by monitoring the vibration characteristics and adjusting the vibration frequency and amplitude to maintain consistent powder flow. This feedback control ensures that powder supply remains continuous while maintaining uniform supply amounts despite variations in powder properties.
Solution Approach 2:
The patent changes the vibration parameters (frequency and amplitude) to optimize powder flow characteristics. By adjusting these parameters, the system maintains consistent powder supply amounts while ensuring continuous operation, adapting to different powder flowability conditions.
3Productivity
If a rotor transports powder by rotating, then powder transport efficiency is improved, but powder adheres to the rotor and mesh body causing clogging
Solution Approach 1:
The patent uses mechanical vibration of the rotor assembly to prevent powder from adhering to the rotor and mesh body surfaces. The vibrations keep powder particles loose and moving, preventing accumulation and clogging while maintaining efficient powder transport through the rotor mechanism.
Solution Approach 2:
The patent maintains continuous vibration during rotor operation to ensure uninterrupted powder flow. This continuous vibrational action prevents powder from settling and adhering to surfaces, ensuring both efficient transport and reliable operation without clogging.
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 achieves stable and even powder supply without breaking down particles, maintaining consistent flowability and preventing clogging, thereby enhancing the quality of the electrode manufacturing process.
Implementation Method 1
The rotor has a brush-like shape, with a plurality of hair members radially implanted pointing radially outward with an axial center of the rotor as the center
Implementation Method 2
a mesh body that covers a lower end of the outlet and through which the powder that has been transported to the outlet passes
Implementation Method 3
a first discharge electrode that performs corona discharge with respect to the powder that has passed through the mesh body
Data Source
AI summary
A powder supplying device (2) includes a case (6) in which a storage portion (6a) is formed for temporarily storing powder (10), the case (6) having an inlet (6b) formed in an upper end of the storage portion (6a), and a rectangular outlet (6c) formed in a lower end of the storage portion (6a); a rotor (7) that is arranged in the case (6) and transports the powder (10) in the storage portion (6a) to the outlet (6c) by rotating; and a mesh body (8) through which the powder (10) that has been transported to the outlet (6c) passes. The powder supplying device (2) supplies the powder (10) onto an upper surface of an electrode foil (5). The rotor (7) has a brush-like shape, with a plurality of hair members (7b) radially implanted pointing radially outward with an axial center (G) of the rotor (7) as the center.