Elastic Piston Sealing in Material Feeders for Leak Reliability
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Solution Overview
Problem
Material feeding devices used in battery production often experience reliability issues due to wear and aging of sealing components, leading to material leakage and operational inefficiencies.
Innovation Solution
A material feeding device with an elastic member disposed between the piston and the material barrel, which compensates for deformation and wear by restoring its sealing effect, and includes a pressure chamber to regulate pressure and friction, ensuring consistent sealing performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional sealing structure is used in the material feeding device, then the device can operate initially, but the sealing component wears and deforms over time leading to material leakage and reduced reliability
Solution Approach 1:
The patent applies the dynamics principle by replacing the traditional static sealing ring with a dynamic elastic member (sealing piston) that can automatically adjust its position and sealing force. The elastic member is configured to be elastically deformable and can move along with the piston, maintaining continuous contact with the material barrel wall. This dynamic adaptation allows the sealing component to compensate for wear and deformation over time, ensuring consistent sealing performance and extending service life.
2Reliability
If a rigid sealing ring is used to maintain sealing, then the structure is simple, but the sealing effect deteriorates due to wear and inability to restore deformation
Solution Approach 1:
The patent applies the parameter changes principle by transforming the sealing component from a rigid structure with fixed parameters to an elastic member with variable parameters. The elastic member's key parameter is its elasticity, which allows it to change its deformation state dynamically. As the sealing component wears or deforms, the elastic member can restore part of its deformation and adjust its elastic force, maintaining effective sealing contact pressure throughout the service life without requiring complex adjustment mechanisms.
3Reliability
If the elastic member is disposed between the piston and material barrel, then sealing reliability is improved through deformation restoration, but the device structure becomes more complex
Solution Approach 1:
The patent applies the universality principle by designing the elastic member to perform multiple functions simultaneously. The elastic member serves as both the sealing component (maintaining sealing contact with the material barrel wall) and the compensating mechanism (restoring deformation and maintaining contact pressure). This multi-functionality eliminates the need for separate sealing rings and compensation devices, reducing overall structural complexity while improving sealing reliability.
Solution Approach 2:
The patent applies the merging principle by integrating the sealing function and the deformation compensation function into a single elastic member component. Instead of having a separate sealing ring that wears out and a separate compensation mechanism, the elastic member combines both functions. The elastic member is disposed between the piston and material barrel, merging the sealing contact surface and the elastic compensation capability into one unified component, thereby simplifying the overall structure while enhancing reliability.
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 enhances the operating reliability of material feeding devices by maintaining sealing effectiveness and reducing the risk of leakage, allowing for smoother operation and improved material flow.
Implementation Method 1
the elastic member can continue to maintain an abutting state against the piston and the inner wall of the material barrel by restoring part of deformation
Implementation Method 2
the pressure chamber can be changed by inputting fluid into the pressure chamber or discharging the fluid from the pressure chamber, so that a suitable pressing force is generated
Data Source
AI summary
A material feeding device includes a material barrel, a piston and an elastic member. The material barrel includes an opening; the piston matches with an inner wall of the material barrel through the opening, the piston encloses and forms a containing cavity for accommodating materials with the material barrel, and the piston is configured to be able to move along the inner wall of the material barrel. The elastic member is disposed between the inner wall of the material barrel and the piston, and adapted to connect the piston and the material barrel in a sealing manner.