Unified Powder Spraycoating Control System for Injector and Dense Phase Pumps
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Solution Overview
Problem
Current powder spraycoating systems require separate control systems for injector-fitted and dense phase powder pump equipment, leading to increased component complexity and maintenance costs due to the need for different spare parts and operational configurations.
Innovation Solution
A unified spraycoating control system that can alternately operate both injector-fitted and dense phase powder pump equipment, reducing the number of required components and allowing for identical operation and spare parts, featuring a modular design with a computerized controller that adjusts settings for both types of systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate control systems are used for injector-fitted and dense phase powder pump equipment, then each system can be optimized for its specific type, but device complexity and maintenance costs increase due to the need for different spare parts and operational configurations
Solution Approach 1:
The control system is designed with multi-functionality to operate both injector-fitted and dense phase powder pump equipment using the same hardware platform. The controller can be configured to control different powder feed mechanisms (injector or dense phase pump) and spray tool operations, eliminating the need for separate control systems for different equipment types while maintaining optimization for each application
2Reliability
If separate control systems are used for injector-fitted and dense phase powder pump equipment, then each system can be specialized, but maintenance costs increase due to the need for different spare parts
Solution Approach 1:
The control system uses universal spare parts across both injector-fitted and dense phase powder pump equipment. The same controller, sensors, actuators, and other components can be used in both system types, significantly reducing maintenance costs and simplifying repair operations while maintaining specialized control capabilities for each equipment type
3Adaptability or versatility
If separate control systems are used for injector-fitted and dense phase powder pump equipment, then each system can be tailored to its specific requirements, but the number of required components increases
Solution Approach 1:
The control system reduces the number of required components by using a universal platform that can be configured for different applications. The same controller, power supply, and auxiliary components serve both injector-fitted and dense phase powder pump equipment, eliminating redundancy while maintaining the adaptability to handle different powder feed mechanisms and coating requirements
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 unified control system simplifies operations and reduces component complexity, enabling the same control system to be used for both types of equipment, lowering maintenance and operational costs by allowing for the use of a single set of spare parts and streamlined operation.
Implementation Method 1
Using a stream of conveying compressed air, a partial vacuum is generated in the injector. This partial vacuum aspirates coating powder into the conveying flow of compressed air.
Implementation Method 2
This partial vacuum aspirates coating powder into the conveying flow of compressed air.
Implementation Method 3
The feed chamber is alternatingly connected to a vacuum source during a suction stage and to a source of conveying compressed air during a discharge stage. The vacuum from said vacuum source aspirates powder through the open powder intake valve into the feed chamber
Implementation Method 4
The conveying compressed air from the source of conveying compressed air discharges powder from within the feed chamber through the open outlet valve
Implementation Method 5
The vacuum intake of at least one of the two feed chambers and in some embodiment modes also the compressed air intake of the feed chamber is/are fitted with a filter permeable to air but not to coating powder.
Data Source
AI summary
A powder spraycoating control system and its combination with a powder pump or with a powder spraycoating unit. The control system contains an controller programmed to alternatingly operate a powder spraycoating unit in turn containing an injector serving as the powder pump or a powder spraycoating unit containing a dense phase powder pump serving as the powder pump.