Negative-Pressure Ink Cartridge Refilling Device with Sealing Mechanism
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Solution Overview
Problem
Traditional negative-pressure ink cartridge refilling devices often result in ink splash during initial use and ink drop after refilling due to pressure variations and lack of negative pressure in the ink cartridge.
Innovation Solution
The refilling device features an ink injection channel with the inlet end positioned above the ink level surface of the container, an aspirator for creating negative pressure, and a sealing mechanism to prevent ink overflow and ensure proper refilling and sealing, including a self-closed seal ring and rubber plug for safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the inlet end of the ink injection channel is positioned below the ink level surface, then ink can be easily supplied to the ink cartridge, but ink may splash out during conveying due to pressure variations
Solution Approach 1:
The inlet end of the ink injection channel is pre-positioned above the ink level surface in the ink container. This preliminary positioning prevents ink from entering the channel during conveying operations, thereby avoiding ink splash while maintaining the ability to supply ink when needed during the refilling process
2Productivity
If the aspirator is used to create negative pressure for refilling, then ink can be drawn into the cartridge, but ink may drop after refilling due to loss of negative pressure
Solution Approach 1:
A sealing component acts as an intermediary between the ink cartridge and the external environment. After refilling, this sealing component maintains the negative pressure state within the cartridge by preventing air leakage, thereby preventing ink drop while allowing efficient refilling operation
Solution Approach 2:
The negative pressure state created during refilling is maintained continuously after the refilling process completes. The sealing component ensures that the negative pressure action continues to function, preventing ink from dripping out of the cartridge
3Ease of operation
If the ink supply pipe is always immersed in ink, then ink can be continuously supplied, but ink may splash out when the sealing component is opened due to pressure rise
Solution Approach 1:
The inlet end of the ink injection channel is pre-positioned above the ink level surface. This preliminary positioning ensures that even when the sealing component is opened and pressure rises in the ink container, ink cannot enter the channel and splash out, while still allowing continuous supply when the seal is closed
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
Prevents ink splash during initial use and reduces the likelihood of ink drop after refilling by maintaining negative pressure in the ink cartridge, ensuring efficient and clean refilling.
Implementation Method 1
the aspirator is used for sucking air in the ink cartridge refilling device; the suction channel is communicated with the ink container and provided with a sucking opening connected with the aspirator
Implementation Method 2
the aspirator is loosened, and herein, the ink cartridge automatically absorbs the ink in the ink container due to the gas-pressure balance
Implementation Method 3
a sponge used for generating a capillary force to hold ink and an ink outlet connected with an ink supply needle of a printer are formed inside the negative-pressure cavity
Data Source
AI summary
The invention relates to a negative-pressure ink cartridge refilling device, system and method. The device comprises an ink container used to store ink, an ink injection channel, an aspirator and a suction channel communicated with the ink container, wherein one end of the ink injection channel is an ink inlet end while the other end is an ink outlet end connected with the ink cartridge to be refilled; a sucking opening connected with the aspirator is formed on the suction channel; and the inlet end is disposed above the ink level surface of the ink container. Therefore, the ink in the ink container cannot be overflowed via the ink injection channel regardless of the environmental factors, and thus the technical problem that the phenomenon of ink splash tends to occur when the traditional negative-pressure ink cartridge refilling device is used by a user for the first time can be solved.