Multicolor Powder Center With Movable Pumps for Rapid Color Changes
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Solution Overview
Problem
Existing powder coating systems require extensive cleaning when changing between different powder types, particularly colors, due to the risk of contamination leading to coating defects.
Innovation Solution
A multi-color powder center with movable pump units and containers, allowing easy switching between powder types, and a cleaning station for rapid and effective powder changes, utilizing a system of movable components and flexible connections for seamless transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single powder container is used, then the device complexity is reduced, but the productivity decreases due to extensive cleaning requirements when changing powder types
Solution Approach 1:
The single powder container is segmented into multiple separate powder containers (first powder container, second powder container, etc.), each dedicated to storing different powder types. This segmentation eliminates the need for extensive cleaning when changing powder types, as the pump unit simply moves from one container to another, significantly reducing powder changeover time while maintaining system manageability through modular architecture
Solution Approach 2:
The pump unit is designed to be movable relative to the powder containers, enabling dynamic repositioning between different powder containers. This dynamic capability allows the system to quickly switch between different powder types without requiring disassembly or extensive cleaning, thereby improving productivity while the movable mechanism is designed to be straightforward, minimizing the increase in device complexity
2Manufacturing precision
If extensive cleaning is performed when changing powder types, then the manufacturing precision (coating quality) is maintained, but the productivity decreases due to time-consuming cleaning processes
Solution Approach 1:
By segmenting the powder storage into multiple dedicated containers, the system eliminates cross-contamination between powder types entirely. This prevents coating defects caused by mixed powder particles, maintaining manufacturing precision while eliminating the need for time-consuming cleaning operations, thus significantly improving productivity
Solution Approach 2:
The harmful factor (contamination risk) is extracted from the system by physically separating different powder types into different containers. This extraction eliminates the need for cleaning operations to maintain coating quality, as each container holds only one powder type, allowing instant switching between powders without compromising manufacturing precision
3Productivity
If multiple powder containers are provided, then the productivity improves by enabling quick powder changes, but the device complexity increases due to additional components and movable mechanisms
Solution Approach 1:
The pump unit is designed as a universal component that can service multiple powder containers through its movable capability. This multi-functionality allows a single pump unit to draw from different powder containers as needed, reducing the need for separate pump units for each container and thereby limiting the increase in device complexity while maintaining high productivity
Solution Approach 2:
The system is designed so that the pump unit can autonomously move between powder containers and switch between different powders without requiring external intervention or complex control mechanisms. This self-service capability simplifies the overall system architecture, improving productivity while minimizing the increase in device complexity
4Ease of operation
If a movable pump unit is used, then the ease of operation improves for powder changes, but the device complexity increases due to movable mechanisms and connections
Solution Approach 1:
The pump unit is designed to be movable relative to the powder containers through straightforward mechanical means, enabling easy switching between different powder types. The movable design is implemented with simple, robust mechanisms that minimize complexity while maximizing ease of operation, allowing operators to quickly reposition the pump unit between containers as needed
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
Enables quick and efficient color changes within 45 seconds, ensuring high-quality powder supply to multiple spray devices simultaneously, with minimal contamination risk.
Implementation Method 1
respective powder chambers (2.1-2.8) are each equipped with a fluidizing device for introducing fluidizing compressed air into the corresponding powder chamber
Implementation Method 2
a pump unit with at least one powder pump, in particular a dense-phase powder pump or a dilute-phase powder pump
Implementation Method 3
a cleaning station is further provided for cleaning the pump unit, a line system leading from the pump unit to at least one powder spray device, and/or at least one powder spray device as required
Data Source
Figure 1a
Figure 1b
Figure 2a
AI summary
The invention relates to a multi-color powder center (1) for supplying at least one powder spraying device with coating powder of different types as needed. The multi-color powder center (1) has a first powder container (2.1) for receiving coating powder of a first type, at least one second powder container (2.2-2.12) for receiving coating powder of a second type, and at least one pump unit (3.1-3.6) with at least one powder pump (4). The pressure side of the at least one powder pump (4) is fluidically connected or connectable to the powder inlet of a powder spraying device. The at least one pump unit (3.1-3.6) and/or the powder containers (2.1-2.12) are movable relative to each other such that, as needed, the suction side of the at least one powder pump (4) can be fluidically connected either to the interior of the first powder container (2.1) or to the interior of the at least one second powder container (2.2-2.12).12) is connected or connectable.