Coating Cartridge Segmented Transfer Paths
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Solution Overview
Problem
The existing coating material cartridges face instability in discharging a predetermined amount of coating material due to air mixing with the hydraulic fluid and leakage issues, especially when the specific gravity of the coating material is higher than the hydraulic fluid, causing stagnation and difficulty in discharging the material from the upper opening.
Innovation Solution
The coating material cartridge design includes a deformable partition body and multiple hydraulic fluid transfer paths with openings at different distances from the connection end face, allowing for reliable discharge of air and coating material stagnation, with the use of a coating material bag or piston to prevent leakage and a hydraulic fluid transfer path valve to control fluid flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the hydraulic fluid chamber is filled from the upper opening, then the air can be released easily, but the coating material stagnates at the bottom and cannot be discharged when specific gravity of coating material is higher than hydraulic fluid
Solution Approach 1:
The hydraulic fluid transfer path is divided into multiple segments with openings at different positions (upper opening for air release, lower opening for coating material discharge). This segmentation allows each opening to serve its specific function independently, resolving the contradiction between easy air release and reliable coating material discharge.
Solution Approach 2:
The solution moves from a single-point filling approach to a multi-level approach by adding vertical dimensionality to the transfer path. The lower opening provides an additional discharge pathway at a different elevation, enabling coating material to exit even when heavier than the hydraulic fluid.
2Device complexity
If a single hydraulic fluid transfer path is used, then the device structure is simple, but air mixing causes instability in coating material discharge amount
Solution Approach 1:
The single transfer path is segmented into multiple paths with openings at different positions. This allows air and coating material to be discharged through different segments, preventing air mixing and ensuring stable discharge amounts while maintaining relatively simple overall structure.
Solution Approach 2:
The multiple openings act as intermediaries that separate the discharge functions. By providing dedicated pathways for air and coating material at different levels, the system prevents harmful mixing while maintaining structural simplicity.
3Power
If the coating material chamber and hydraulic fluid chamber are partitioned by a piston, then the pumping mechanism is effective, but coating material can leak to the hydraulic fluid chamber when the piston seal fails
Solution Approach 1:
A seal ring is introduced as an intermediary component between the coating material chamber and hydraulic fluid chamber. This seal ring prevents direct leakage while allowing the piston to maintain its pumping function, thus preserving power efficiency while improving reliability.
Solution Approach 2:
The seal ring provides a preventive barrier against leakage before it occurs. By positioning the seal ring at the interface between chambers, the system proactively prevents coating material from contaminating the hydraulic fluid, ensuring reliable operation.
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
This design stabilizes the discharge amount of the coating material, effectively discharging air and coating material from the hydraulic fluid chamber, preventing leakage and ensuring reliable operation even when the specific gravity of the coating material is higher than the hydraulic fluid.
Implementation Method 1
a partition body disposed deformably or displaceably in the cartridge main body for partitioning an inner region of the cartridge main body into a coating material chamber in which a coating material is filled and a hydraulic fluid chamber to and from which a hydraulic fluid is supplied and discharged
Implementation Method 2
a coating material in the coating material chamber is pumped out along with movement of a piston after filling the hydraulic fluid
Implementation Method 3
a partition body disposed deformably or displaceably in the cartridge main body
Implementation Method 4
by application of high voltage to the rotary atomizing head, coating material particles atomized in the rotary atomizing head are charged and electrostatic coating is conducted
Implementation Method 5
coating material particles atomized in the rotary atomizing head are charged and electrostatic coating is conducted
Implementation Method 6
a rotary atomizing head for atomizing an aqueous coating material for electrostatic coating is provided
Data Source
AI summary
For providing a coating material cartridge capable of reliably discharging air and coating material stagnated in a hydraulic fluid chamber, a coating material cartridge has a cartridge main body, a partition body, a coating material transfer path and a plurality of hydraulic fluid transfer paths. The cartridge main body is detachably attached to a coating material filling device. The partition body partitions the inner region of the cartridge main body into a coating material chamber and a hydraulic fluid chamber. The coating material transfer path communicates the coating material chamber and the outer region of the cartridge main body, and each of the hydraulic fluid transfer paths communicates the hydraulic fluid chamber and a outer region of the cartridge main body. Each of the hydraulic fluid transfer paths has a plurality of openings that opens in the hydraulic fluid chamber and the distance for each of the openings from the connection end face is different from each other.