Pipe-End Flux Applicator With Side Apertures and Internal Brush Coating
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Solution Overview
Problem
Existing applicator devices for applying flux composition to pipes are inefficient, often requiring excessive flux, leading to waste and potential leakage, especially in warm environments, as they fail to effectively coat the pipe length without leaving residue at the base of the dispensing region.
Innovation Solution
An applicator device with a cavity and brushes that deliver flux composition to the side of the pipe, using apertures closer to the opening than the base, allowing for efficient coating of the pipe length by reciprocating the pipe within the cavity, and optionally including a supplementary brush for internal coating, with a mechanism to monitor and control flux dispensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If flux composition is dispensed into the bottom of the dispensing region to fill it to sufficient depth, then a long enough portion of the pipe length can be coated, but a significant amount of flux composition is left over in the bottom of the dispensing region and traps dirt after the pipe end has been coated and removed
Solution Approach 1:
The aperture is positioned closer to the opening of the cavity than to the base, so that flux composition is delivered to the side of the pipe rather than to the very end. This preliminary positioning allows the pipe to be reciprocated within the cavity so that the brushes wipe the composition along the required length portion of the pipe, preventing accumulation at the base before it can cause problems
Solution Approach 2:
The brushes act as intermediaries between the flux composition and the pipe surface. The brushes receive flux from the aperture and transfer it to the pipe through wiping action during reciprocation, ensuring controlled distribution and preventing direct accumulation in the cavity base
2Quantity of substance
If a large amount of flux composition is dispensed into the dispensing region, then sufficient coating depth is achieved for long pipe portions, but the left over flux composition may subsequently leak out of the dispensing region, particularly in warm environments
Solution Approach 1:
The aperture positioning delivers flux to the side of the pipe rather than the bottom, and the brush wiping action distributes flux along the pipe length during reciprocation. This preliminary distribution prevents excessive flux accumulation in the cavity base that would otherwise leak in warm conditions
Solution Approach 2:
The aperture position parameter is changed from the conventional location at the base of the cavity to a location closer to the opening. This parameter change fundamentally alters how flux is distributed, delivering it to the side where brushes can wipe it along the pipe rather than allowing it to pool at the bottom
3Ease of operation
If flux composition is delivered to the end of the pipe, then direct coating is achieved, but composition accumulates at the base of the cavity requiring excessive flux usage
Solution Approach 1:
The brushes serve as intermediaries that transfer flux from the aperture to the pipe surface through a wiping mechanism. During reciprocation of the pipe within the cavity, the brushes continuously wipe flux along the required length portion, achieving effective coating without direct delivery to the pipe end
Solution Approach 2:
Instead of delivering flux directly to the pipe end (one-dimensional approach), the aperture delivers flux to the side of the pipe and uses brush wiping during reciprocation (adding the dimension of motion through the cavity) to distribute flux along the pipe length, reducing total flux consumption
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 minimizes flux usage and prevents leakage by ensuring even coating along the pipe length, reducing waste and residue, while allowing for precise application and monitoring of the flux composition.
Implementation Method 1
Each brush has bristles which extend into the cavity to wipe against the end of the pipe
Data Source
AI summary
An applicator device (1) for applying a composition to an end of a pipe. The applicator device comprises an applicator head (3), the applicator head having a cavity (9) with an opening into which the end of the pipe can be inserted. The applicator head comprises at least one brush (10) and at least one aperture (12) for delivering the composition into the cavity, each brush having bristles which extend into the cavity (9) to wipe against the end of the pipe, each aperture being closer to the opening of the cavity than to a base of the cavity. There is further provided an applicator device (1) comprising a supplementary brush for wiping the composition over an internal surface of the pipe, a container (60) of flux composition for connecting to the applicator device, and a method of applying a composition to an end of a pipe.