Three-Stage Variable Color Paste Pump for Precision Ejection Control
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Solution Overview
Problem
Existing toning equipment faces challenges in precision control of small amounts of color paste ejection, leading to deviations and color abnormalities, and current solutions require multiple pumps, occupying significant space and being costly.
Innovation Solution
A three-stage variable color paste pump with a differential pump system, including a rodless cavity, rod containing cavity, and a control valve that adjusts communication structures to manage ejection of small, medium, and large amounts of color paste, ensuring precision and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a large pump with large section cylinder is used to eject a large amount of color paste, then the ejection amount is sufficient, but the ejection precision deteriorates when ejecting a small amount of color paste
Solution Approach 1:
The single pump system is segmented into three distinct pumping chambers with different cylinder bore diameters (large, medium, and small section cylinders). Each chamber is equipped with its own piston and can operate independently or in combination, allowing the system to select the appropriate chamber size based on the required ejection amount, thereby maintaining high precision across all ejection volumes.
Solution Approach 2:
The pump system dynamically switches between different pumping chambers based on the required color paste ejection amount. The control system activates only the necessary chamber(s), making the system adaptable and efficient. This dynamic operation allows the pump to maintain optimal precision for each ejection scenario rather than being constrained by a fixed chamber size.
2Manufacturing precision
If two color mixers (one large pump and one small pump) are provided to meet both large and small amount ejection requirements, then the ejection precision is improved, but the device complexity and occupied space increase
Solution Approach 1:
The invention merges multiple pumping chambers (large, medium, and small section cylinders) into a single integrated pump body. All three chambers share common structural elements including the pump housing, drive mechanism, and control system. This consolidation achieves the precision benefits of having separate pumps while reducing overall system complexity and occupied space through shared components.
Solution Approach 2:
The single pump system is designed with multi-functionality, where each pumping chamber can serve different ejection requirements. The system can eject small amounts using only the small section cylinder, medium amounts using the medium section cylinder, large amounts using the large section cylinder, or combinations thereof. This universal design eliminates the need for multiple dedicated pumps while maintaining precision across all operating ranges.
3Manufacturing precision
If two color mixers are provided to meet both large and small amount ejection requirements, then the ejection precision is improved, but the cost increases
Solution Approach 1:
The invention consolidates multiple pumping functions into a single manufactured unit. By sharing common components such as the pump housing, drive shaft, control electronics, and mounting structure, the manufacturing cost is reduced compared to producing and assembling two or more separate pump systems. The integrated design allows for economies of scale and reduced material costs.
Solution Approach 2:
The multi-functional pump system provides precise ejection control for various color paste amounts through a single device. This eliminates the need to purchase, install, and maintain multiple separate pumps, thereby reducing overall system cost while achieving the same precision objectives. The universal design allows one pump to replace what would traditionally require two or more specialized pumps.
Data Source
AI summary
A three-stage variable color paste pump, comprising: a differential pump, which includes: a rodless cavity, a rod containing cavity, and a piston rod; configuring a control valve, which comprises a valve body and a valve core, wherein the valve body is provided with a rod containing cavity opening which is in communication with the rod containing cavity; configuring a rodless cavity opening as in communication with the rodless cavity, configuring a color paste tank opening as in communication with a color paste tank, and configuring an injection outlet; configuring a channel on the valve core, moving the valve core to different positions may form three communication structures. The pump uses one differential pump to achieve three-stage injection output, thus ensuring the accuracy of the injection output of the color paste pump. The pump has a simple structure, takes up a small surface area, and is easy to use.