Adjustable Charge Ring and Interchangeable Pre-Orifices for Paint Spray Tools
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Solution Overview
Problem
Paint spray tools face issues with charge ring probes becoming covered in paint, reducing their effectiveness, and require a method to purge paint from conduits with varying viscosities, necessitating adjustable charge rings and suitable orifice sizes for efficient paint flow.
Innovation Solution
A paint spray tool with a slidably connected, lockable charge ring and interchangeable pre-orifices in purge supply lines, allowing for adjustment of the charge ring position and orifice diameter to accommodate different paint viscosities, ensuring effective charging and purging operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the charge ring is positioned close to the spray outlet for effective charging, then the charging effectiveness is improved, but the probes become covered with paint more easily
Solution Approach 1:
The charge ring is made adjustable along the longitudinal surface of the tool body, allowing it to be positioned at different locations including secondary positions farther from the spray outlet. This dynamic repositioning capability enables operators to optimize the balance between charging effectiveness and probe contamination based on specific application requirements.
2Device complexity
If a single orifice size is used in the purge conduit, then the device complexity is reduced, but the purging effectiveness for different paint viscosities deteriorates
Solution Approach 1:
The purge system is segmented into multiple components: a main orifice in the purge conduit and interchangeable pre-orifices that can be selected based on paint viscosity. This segmentation allows the system to handle different paint types effectively without requiring a completely different purge system for each viscosity.
Solution Approach 2:
The orifice diameter parameter is made variable through the use of interchangeable pre-orifices with different sized openings. This parameter change allows optimization of paint flow characteristics for different viscosity levels, improving purging effectiveness across various paint types.
3Device complexity
If the charge ring position is fixed, then the device complexity is reduced, but the adaptability to different applications deteriorates
Solution Approach 1:
The charge ring is designed with sliding and locking capabilities along the longitudinal surface of the tool body, transforming it from a fixed component to an adjustable one. This dynamic feature provides adaptability to different applications while maintaining relatively simple device architecture through the use of basic mechanical sliding and locking mechanisms.
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 effective electrostatic charging of paint particles and efficient purging of paint from conduits, preventing overspray and ensuring consistent paint application across various viscosity types, enhancing the tool's operational efficiency and adaptability.
Implementation Method 1
The system uses electrostatic attraction to charge the paint spray particles and cause them to be attracted to the part
Data Source
AI summary
A charge ring and fluid restriction arrangement for a paint spray tool. The paint spray tool has a charge ring that is moveable along the axis of the tool body. The paint spray tool also has interchangeable pre-orifices within the tool body.