Powder Spray Angle Adapter With Pivoting Nozzle and HV Insulation
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Solution Overview
Problem
Existing powder spray devices lack the ability to adjust both the angle of rotation and pivot angle of the powder spray direction, and there is a need to ensure consistent high voltage and gas flow to the nozzle regardless of the spray direction.
Innovation Solution
An angle adapter for a powder spray device that allows adjustable pivot angles and rotation, featuring a housing with a pivot body and labyrinth design to maintain high voltage and gas flow, using dielectric materials and gas lines to ensure electrical insulation and efficient powder distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed pivot angle adapter (60° or 90°) is used to change spray direction, then the spray direction can be pivoted at a defined angle, but the pivot angle cannot be changed during coating without unscrewing and replacing the adapter
Solution Approach 1:
The patent applies the dynamics principle by making the pivot angle adjustable during operation. The adapter allows continuous adjustment of the pivot angle between 0° and 90° through a rotating mechanism with a pivot body that can be positioned at different angles and locked in place, eliminating the need to unscrew and replace fixed-angle adapters.
2Adaptability or versatility
If the pivot body is made rotatable about the longitudinal axis to adjust the angle of rotation, then the spray direction can be rotated, but the high voltage electrode may not consistently reach the nozzle regardless of the set spray direction
Solution Approach 1:
The patent applies the dimensionality change principle by adding a second rotational degree of freedom. The high voltage electrode is arranged to rotate together with the pivot body about the longitudinal axis, ensuring it maintains its relative position and consistently reaches the nozzle regardless of the pivot angle or rotation angle settings.
3Adaptability or versatility
If gas flow is used to flush around the high voltage electrode, then powder adhesion is prevented, but the gas flow path must remain consistent regardless of the pivot angle adjustment
Solution Approach 1:
The patent applies the dimensionality change principle by making the gas flow path rotate with the pivot body. The gas flow channel is arranged to extend through the pivot body and rotate together with it, ensuring that the gas flow consistently surrounds and flushes the high voltage electrode regardless of the pivot angle or rotation angle settings.
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
Enables flexible spray direction adjustment while ensuring reliable high voltage and gas flow to the nozzle, enhancing coating uniformity and safety by preventing electrical discharge and powder adhesion.
Implementation Method 1
Several webs and grooves are located at the housing and at the pivot body, whereby the webs protrude into the grooves, and the webs and grooves are formed so that they form a labyrinth
Implementation Method 2
The angle adapter furthermore has a high voltage line, which extends from the upstream housing via the pivot body all the way into the nozzle and which is formed there as high voltage electrode
Implementation Method 3
gas, which is to flush around the high voltage electrode, can always be conducted to the high voltage electrode, independently of the set spray direction
Data Source
AI summary
The angle adapter according to the invention for a powder spray device comprises an upstream housing, which has an upstream powder channel, a connection to the powder spray device, and a longitudinal axis, about which the housing can be rotated. The powder spray device additionally comprises a pivot body comprising a downstream powder channel, which connects to the upstream powder channel The pivot body can be pivoted about a pivot axis, whereby the pivot axis runs obliquely to the longitudinal axis. A nozzle is additionally provided, which connects to the pivot body. Several webs and grooves are provided at the housing and pivot body, whereby the webs protrude into the grooves, and the webs and grooves are formed so that they form a labyrinth. A high voltage line is furthermore provided, which extends from the upstream housing via the pivot body all the way into the nozzle and which is formed there as high voltage electrode.