Stirring Device Posture Correction for Ink Homogeneity
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Solution Overview
Problem
Nail printers using ink with high specific gravity solutes like titanium oxide tend to experience precipitation issues when left still, leading to degraded print quality due to solute separation, which can cause concentration and color unevenness during printing.
Innovation Solution
A stirring device with a rotating holder and drive motor that corrects the stop position of the cartridge to ensure it remains in a normal posture, even after stopping, using a posture controller and tension coil spring to maintain the ejection surface facing down, preventing solute precipitation and ensuring proper ink dispersion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the liquid agent is left still, then the solute precipitates and separates, but continuous stirring consumes energy and requires additional mechanisms
Solution Approach 1:
The stirring device operates periodically rather than continuously. The drive motor rotates the holder for a predetermined time interval, then stops, allowing the ink to be stirred at regular intervals without continuous energy consumption. This periodic operation maintains ink homogeneity while significantly reducing energy usage compared to continuous stirring.
Solution Approach 2:
The tension coil spring automatically returns the holder to its initial position after rotation without requiring additional power or control mechanisms. The spring stores mechanical energy during rotation and releases it to return the holder, making the positioning system self-service and energy-efficient.
2Ease of operation
If the cartridge is stopped in any posture, then the device is simple to operate, but the solute may precipitate and clog the ventilation port
Solution Approach 1:
The posture detection sensor detects the holder's position and provides feedback to the control unit. The control unit uses this feedback to determine when the holder has returned to the initial position with the ejection surface facing downward, ensuring the cartridge stops in the correct posture to prevent solute precipitation and ventilation port clogging.
Solution Approach 2:
The tension coil spring extracts the complexity of precise positioning control from the electrical system by providing a mechanical force that naturally returns the holder to the correct position. This separates the positioning function into a passive mechanical system rather than requiring active continuous control.
3Reliability
If a posture correction mechanism is added, then the cartridge maintains correct orientation, but the device complexity increases
Solution Approach 1:
The tension coil spring provides automatic posture correction without requiring complex control systems. The spring mechanically ensures the holder returns to the initial position where the ejection surface faces downward, maintaining reliable cartridge orientation through a simple passive mechanical element rather than complex active control.
Solution Approach 2:
The tension coil spring acts as an intermediary between the drive motor and the holder positioning system. It mediates the transition from powered rotation to precise positioning by storing and releasing mechanical energy, simplifying the overall control architecture while ensuring reliable orientation.
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 solution effectively prevents solute precipitation, maintaining ink homogeneity and preventing ventilation port clogging, ensuring high-quality printing by ensuring the ink remains well-mixed and ready for use.
Implementation Method 1
a posture controller that corrects a stop position of the rotating holder to position the cartridge in a first posture in a case where an operation of the drive motor is stopped in a state where the cartridge is in a second posture that is different from the first posture
Implementation Method 2
A stirring device includes, a rotating holder that is capable of performing a rotating operation in a state where the rotating holder holds a cartridge that accommodates a liquid agent in which a solute is precipitated in a solvent by the liquid agent being left still
Data Source
AI summary
A stirring device includes the following. A rotating holder is capable of performing a rotating operation in a state where the rotating holder holds a cartridge that accommodates a liquid agent in which a solute is precipitated in a solvent by the liquid agent being left still. A drive motor causes the rotating holder to perform the rotating operation. A posture controller corrects a stop position of the rotating holder to position the cartridge in a first posture in a case where an operation of the drive motor is stopped in a state where the cartridge is in a second posture that is different from the first posture. The first posture is a state in which the cartridge is in a normal stop posture.