Pressurized Accumulator Station for Rapid Coating Replenishment
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Solution Overview
Problem
Existing coating product replenishment stations for projectors on mobile robots are slow and costly due to limited pressure in conventional circuits, leading to inefficient filling rates and high sedimentation of coating products, which restricts the coating capacity to around 50 vehicles per hour and incurs high manufacturing and maintenance costs.
Innovation Solution
A station with accumulators connected to coating product circuits, pressurized to higher pressures, and a docking unit that allows rapid transfer of coating product from accumulators to the projector's tank, enabling faster filling rates and reducing sedimentation, along with a method that includes filling accumulators during paint projection cycles and using a general-purpose accumulator for less frequently used products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional circuits with limited pressure (6 bars) are used for replenishment, then the system is simple to operate, but the filling rate is limited to 3000 cm³ and replenishment time is excessive
Solution Approach 1:
The system is divided into two independent circuits: a first circuit for supplying coating product to the accumulator during projection cycles, and a second circuit for rapidly transferring coating product from the accumulator to the projector tank. This segmentation allows each circuit to be optimized for its specific function, enabling high-speed replenishment without complicating the overall system operation
Solution Approach 2:
The accumulator is pre-filled with coating product during projection cycles when the system is already operating. This preliminary action ensures that when rapid replenishment is needed, the coating product is already available in the accumulator, eliminating waiting time and enabling immediate high-speed transfer to the projector tank
2Reliability
If double-stranded circuits are used to circulate coating product evenly, then sedimentation is reduced, but manufacturing and maintenance costs increase
Solution Approach 1:
The system implements periodic circulation of coating product through the accumulator during projection cycles. This periodic action keeps the coating product in constant motion, preventing sedimentation without requiring the complex double-stranded circuit configuration, thereby reducing manufacturing and maintenance costs while maintaining reliability
3Productivity
If conventional replenishment stations are used, then the system is easy to manufacture, but the coating capacity is limited to around 50 vehicles per hour
Solution Approach 1:
The system uses a pressurized accumulator connected via a second circuit to rapidly transfer coating product to the projector tank. The hydraulic/pneumatic pressure enables high-speed filling rates exceeding 3000 cm³, increasing coating capacity to over 50 vehicles per hour while maintaining operational simplicity through automated control
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 enables rapid and efficient replenishment of coating products, reducing the total replenishment time to less than 12 seconds and increasing the coating capacity to approximately 60-70 vehicles per hour, while simplifying the system design and reducing costs by minimizing the need for double-stranded circuits and complex paint management.
Implementation Method 1
means for pressurizing the volume of the accumulator
Data Source
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AI summary
The invention relates to a station (S) for reloading a sprayer (1) provided with a tank (10), said station comprising: a means (121) for coupling to at least one coating material circuit (70-79); a clamping unit (200) that defines an area (250) for receiving a sprayer (1); at least one accumulator (110, 120, 130, 140, 150), the volume of which is greater than or equal to the volume of the tank (10), each accumulator (110, 120, 130, 140, 150) being connected to at least one respective circuit (20, 70-79) by the coupling means (121; 170-179); means (125, 120.1, 120.2) for pressurizing the accumulator (110, 120, 130, 140, 150); means (121, 123-153) for connecting each accumulator (110, 120, 130, 140, 150) to the clamping unit (200); and a member (222) for connecting the clamping unit (200) to the tank (10).