Powder Injector Quick Coupling for Faster Cleaning and Color Change
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Solution Overview
Problem
Existing powder injectors require numerous hand movements and the use of tools to couple and decouple supply air lines, leading to inefficient cleaning and color change processes.
Innovation Solution
A powder injector with quick coupling that allows for easy, tool-free installation and removal of the collection nozzle and simultaneous decoupling of all supply air lines, utilizing a line connection block with a quick closure and snap-in connection for secure and stable attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional cap nut coupling is used for supply air lines, then the connection is secure, but the coupling and decoupling process requires numerous hand movements and tools
Solution Approach 1:
The supply air lines are segmented into modular quick coupling connections, allowing individual lines to be quickly disconnected without affecting other connections. This segmentation enables rapid decoupling of the collection nozzle and supply air lines as a single unit, significantly reducing cleaning time while maintaining secure connections during operation.
Solution Approach 2:
The quick coupling mechanism transforms the static, tool-dependent cap nut connection into a dynamic, tool-free system. The coupling allows for rapid transitions between connected and disconnected states through simple hand movements, enabling the collection nozzle to be quickly removed for cleaning without requiring multiple sequential steps.
2Ease of operation
If traditional cap nut coupling is used for supply air lines, then the connection is stable, but the coupling and decoupling process requires tools and multiple steps
Solution Approach 1:
The quick coupling mechanism merges the functions of multiple separate coupling operations into a single integrated action. By combining the supply air line connections with the collection nozzle assembly, the system allows all connections to be made or broken simultaneously through one coupling/decoupling action, simplifying the overall operation while maintaining connection stability.
Solution Approach 2:
The quick coupling mechanism is designed to be self-servicing, requiring no external tools or additional components for operation. The coupling and decoupling actions are performed entirely through hand movements on the quick coupling mechanism itself, eliminating the need for cap nuts, wrenches, or other tools, thereby reducing operational complexity.
3Reliability
If multiple separate connections are used for powder hose and supply air lines, then each connection can be secured independently, but the overall assembly time increases
Solution Approach 1:
The quick coupling mechanism serves multiple functions simultaneously: it secures the supply air lines, facilitates rapid collection nozzle removal, and enables quick color changes. This multi-functional design maintains connection reliability while dramatically improving productivity by allowing all connections to be established or broken in a single action rather than multiple separate steps.
Data Source
AI summary
The powder injector according to the invention with quick coupling comprises an injector housing (5), which has a powder inlet (12) and supply air inlets (5.15, 5.16, 5.17) and in which a drive nozzle (7) and a collection nozzle (8) are arranged. The powder injector additionally comprises a line connection block (6), which has connections (15, 16, 17) for supply air lines and the supply air outlets (6.15, 6.16, 6.17). The powder injector furthermore comprises a quick closure (9), by means of which the line connection block (6) can be fastened to the injector housing (5) and the supply air outlets (6.15, 6.16, 6.17) of the line connection block (6) can be connected to the supply air inlets (5.15, 5.16, 5.17) of the injector housing (5).