Booster Circuit Layout for High-Frequency Viscous Liquid Discharge
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing liquid material discharge devices face challenges in increasing discharge frequency and reducing cycle time, especially when handling highly viscous materials, as they require increased air pressure, leading to delayed air pressure restoration and uneven plunger operation.
Innovation Solution
A liquid material discharge device with a booster circuit that includes a first and second booster system, merging section, check valves, storage tanks, and a pressure adjustment valve, which supplies pressurized air to a piston chamber to enhance the boosting action and reduce cycle time by optimizing air pressure and flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If discharge frequency is increased to reduce cycle time, then productivity is improved, but air consumption is increased causing delayed air pressure restoration and uneven plunger operation
Solution Approach 1:
The air supply system is segmented into multiple independent air chambers (first air chamber and second air chamber) that can be supplied with pressurized air independently. This segmentation allows the system to maintain stable plunger operation even when air consumption increases, as each chamber can be optimized for pressure stability.
Solution Approach 2:
Pressurized air is supplied to the air chambers in advance before the discharge cycle begins. The pressure supply device pre-pressurizes the air chambers, so when the discharge cycle starts, the plunger can operate immediately without waiting for air pressure buildup, enabling higher discharge frequencies while maintaining stable operation.
2Stress or pressure
If air pressure is raised to discharge highly viscous material, then discharge capability is improved, but air consumption is further increased causing cycle time reduction to become more serious
Solution Approach 1:
The air supply system is divided into multiple independent air chambers that can be pressurized separately. This allows the system to maintain high air pressure for discharging viscous materials while managing overall air consumption through independent control of each chamber, preventing the cycle time from increasing.
Solution Approach 2:
The pressure supply device pre-pressurizes multiple air chambers before the discharge cycle. This preliminary pressurization ensures that high air pressure is immediately available when needed for viscous material discharge, eliminating the time delay that would otherwise occur during pressure buildup, thus maintaining short cycle times despite high pressure requirements.
3Device complexity
If single booster system is used, then device complexity is reduced, but air pressure boosting capability is insufficient for high frequency operation
Solution Approach 1:
The booster system is segmented into multiple independent booster circuits, each serving a specific air chamber. This segmentation allows parallel air pressure restoration across multiple chambers, significantly increasing the overall air pressure restoration speed and enabling high-frequency discharge operations.
Solution Approach 2:
Multiple booster systems are merged into a coordinated network where each booster operates independently on its assigned air chamber. The merging of these parallel systems creates a composite air supply capability that restores pressure faster than a single booster could, while the modular structure keeps individual components relatively simple.
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 device achieves a high shot pitch and continuous discharge with reduced cycle time, even with highly viscous materials, by stabilizing air pressure and preventing air shortages, ensuring efficient operation at high discharge frequencies.
Implementation Method 1
an elastic body that applies an urging force to the plunger
Implementation Method 2
a piston chamber in which the piston is disposed and to which pressurized gas is supplied
Implementation Method 3
a booster circuit that communicates the pressure supply device and an air source with each other, and the booster circuit includes a first booster system including a booster valve and a pressure reducing valve
Implementation Method 4
discharging the liquid material from the discharge port by causing the plunger to move forward and applying an inertial force to the liquid material
Data Source
AI summary
A liquid material discharge device includes: a plunger including a piston formed at a rear end a piston chamber in which the piston is disposed and to which pressurized gas is supplied; a pressure supply device that supplies, to the piston chamber, air pressurized in excess of the urging force of the elastic body, or that purges pressurized air out of the piston chamber, the liquid material discharge device discharging the liquid material from the discharge port by causing the plunger to move forward and applying an inertial force to the liquid material; a booster circuit that communicates the pressure supply device and an air source with each other, and the booster circuit includes a first and a second booster system including a booster valve and a pressure reducing valve, and a merging section in which the first booster system and the second booster system merge together.