Air Wiping Device Segmented Ceramic Insert
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Solution Overview
Problem
Existing air wiping devices for elongated products face issues such as the need for complete device replacement when changing cable size, high manufacturing costs due to ceramic materials, wear and tear from misalignment, and interference between ganged devices during the drying process.
Innovation Solution
An air wiping device with a separable ceramic insert and orthogonal nozzle configuration to accommodate different cable sizes, providing improved wear resistance and preventing liquid interference between adjacent devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire air wipe product is constructed of ceramic material to provide a hard surface in the inner tube, then wear resistance is improved, but manufacturing cost increases
Solution Approach 1:
The air wipe device is divided into modular components: a reusable housing and replaceable ceramic inserts. The ceramic material is applied only to the specific wear-prone inner tube surface rather than the entire device, reducing material costs while maintaining wear resistance where needed.
Solution Approach 2:
The device combines different materials strategically - the housing can be made from less expensive materials while the inner tube surface is coated or inserted with ceramic material to provide hardness and wear resistance. This composite approach optimizes both cost and performance.
2Device complexity
If the air wiping device is constructed as a single integrated unit, then structural simplicity is improved, but adaptability to different cable sizes deteriorates
Solution Approach 1:
The device is segmented into a standardized housing and interchangeable inserts. The insert can be removed and replaced with a different size insert to accommodate various cable diameters, allowing one housing to serve multiple applications without increasing overall complexity.
Solution Approach 2:
The housing is designed with universal mounting features that accommodate different insert sizes. The standardized interface allows the same housing to work with multiple insert types, providing multi-functionality and adaptability to different cable specifications.
3Area of stationary object
If air wiping devices are ganged in series with close spacing to meet space constraints, then space utilization is improved, but interference between adjacent devices increases
Solution Approach 1:
The discharge direction is changed from a longitudinal arrangement (along the cable movement direction) to a transverse arrangement (perpendicular to cable movement). This dimensional change allows devices to be spaced closer together in the longitudinal direction while preventing liquid interference through the transverse discharge pattern.
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 device allows for cost-effective substitution of tubing sizes without replacing the entire unit, enhances durability through ceramic inserts, and ensures effective drying by directing discharge orthogonal to the cable movement, reducing wear and interference.
Implementation Method 1
a first set of nozzles mounted at the one end of the housing for communicating a compressed gas stream to the internal elongated tubular passage; and a second set of nozzles mounted at the other end of the housing for communicating a compressed gas to the internal elongated tubular passage
Data Source
AI summary
The air wiping device includes a housing having an internal elongated tubular passage through which the elongated product extends and including opposite one and other ends with the housing tubular passage having an inlet end and an outlet end for respectively receiving and passing the elongated product; a first set of nozzles mounted at the one end of the housing for communicating a compressed gas stream to the internal elongated tubular passage and second set of nozzles mounted at the other end of the housing for communicating a compressed gas to the internal elongated tubular passage. A ceramic insert is disposed in the internal tubular passage of the housing and through which the elongated product passes. The ceramic insert includes a tapered input through which the elongated product is received and an output through which the elongated product passes from the housing. The first and second sets of nozzles are mounted for directing the respective gas streams in a direction having a compressed gas stream component toward each other for discharge transversely from the housing.