Coating Cartridge Filling Device Flow Speed Detection
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Solution Overview
Problem
Existing coating material filling and discharging devices have complex structures due to the need for measuring chambers and pistons to accurately detect filling completion, which complicates the detection of overfilling and affects the durability of the cartridge.
Innovation Solution
A coating material filling and discharging device with a simple structure that uses a flowmeter or pressure gauge to detect the completion of filling by monitoring the flow speed or pressure drop of extrusion liquid, allowing for accurate determination of filling completion without the need for additional components like pistons or measuring chambers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a measuring chamber and piston are provided to accurately measure the discharged amount of extrusion liquid, then the filling amount of coating material can be measured accurately, but the device structure becomes complex
Solution Approach 1:
The patent extracts the measurement function from a complex mechanical system (measuring chamber and piston) and implements it through a simple flow sensor that directly monitors extrusion liquid flow. This removes the unnecessary measuring chamber and piston components while retaining the essential measurement capability, thereby simplifying the device structure while maintaining measurement accuracy.
Solution Approach 2:
The patent replaces the mechanical measurement system (piston displacement in a measuring chamber) with an electronic/sensor-based system (flow sensor detecting extrusion liquid flow). This substitution eliminates complex mechanical components and their associated moving parts, significantly simplifying the device structure while enabling accurate measurement of the extrusion liquid amount and consequently the coating material filling amount.
2Measurement precision
If a measuring chamber and piston are provided to detect filling completion, then filling completion can be detected highly accurately, but the device structure becomes complex
Solution Approach 1:
The patent extracts the detection function from the complex mechanical measurement system and implements it through a simple flow sensor that continuously monitors extrusion liquid flow. By removing the measuring chamber and piston, the device achieves filling completion detection without the structural complexity of mechanical measurement components.
Solution Approach 2:
The patent replaces the mechanical detection system (piston position in measuring chamber) with an electronic sensor system (flow sensor detecting flow characteristics). This substitution eliminates complex mechanical structures while enabling highly accurate detection of filling completion through electronic signal processing of flow data.
3Manufacturing precision
If additional components like pistons and measuring chambers are added to the device, then filling measurement accuracy is improved, but the device structure becomes complex
Solution Approach 1:
The patent extracts the essential measurement function from the complex assembly of pistons and measuring chambers and implements it through a single flow sensor. This extraction eliminates unnecessary components while preserving the core measurement capability, achieving manufacturing precision without structural complexity.
Solution Approach 2:
The patent replaces the mechanical measurement components (pistons and measuring chambers) with an electronic sensor-based system. This substitution achieves the same measurement accuracy through non-mechanical means, thereby simplifying the device structure while maintaining or improving manufacturing precision.
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
Enables highly accurate detection of filling completion with a simplified device structure, preventing overfilling and maintaining cartridge durability by using flowmeter or pressure gauge to monitor flow speed or pressure changes.
Implementation Method 1
a flowmeter provided in the extrusion liquid route, and a control part configured to determine whether or not filling of the coating material to the coating material cartridge is completed based on a drop of flow speed of the extrusion liquid, which is detected by the flowmeter
Implementation Method 2
a pressure gauge provided in the extrusion liquid route, and a control part configured to determine whether or not filling of the coating material to the coating material cartridge is completed based on a drop of pressure of the extrusion liquid, which is detected by the pressure gauge
Data Source
AI summary
A coating material filling and discharging device includes a coating material supply part configured to supply a coating material to a coating material storage bag arranged inside a case of a coating material cartridge, an extrusion liquid supply part configured to supply extrusion liquid to a surrounding region outside the coating material storage bag within the case, and store the extrusion liquid discharged from the case, an extrusion liquid route that connects an extrusion liquid supply part and the surrounding region with each other, a flowmeter provided in the extrusion liquid route, and a control part configured to determine whether or not filling of the coating material in the coating material cartridge is completed based on a drop of flow speed of the extrusion liquid.