Rotatable Nozzle Holder Texture Sprayer for Spray Pattern Control
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Solution Overview
Problem
Existing texture sprayers lack versatility and efficiency in applying texture coatings to surfaces due to limited nozzle positioning options and lack of adjustable spray characteristics, leading to inconsistent spray patterns and operator fatigue.
Innovation Solution
A texture sprayer with a rotatable nozzle holder and multiple nozzles of different sizes and shapes, allowing for selective alignment with the spray axis, combined with a tilting mechanism and adjustable valve assembly to enhance spray control and reduce operator fatigue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single fixed nozzle is used, then the device structure is simple, but the spray pattern control and versatility are limited
Solution Approach 1:
The nozzle holder is made rotatable about a center axis, allowing the nozzle to be dynamically repositioned between multiple positions (first position with nozzle aligned with spray axis, second position with nozzle offset from spray axis) to vary spray patterns. This dynamic adjustment mechanism provides versatility while maintaining reasonable structural complexity.
Solution Approach 2:
The spray device is segmented into a rotatable nozzle holder assembly and a fixed body, allowing independent adjustment of the nozzle position. This segmentation enables multiple spray configurations (aligned and offset positions) without redesigning the entire device, resolving the contradiction between versatility and complexity.
2Ease of operation
If the hopper is fixed in position, then the structure is stable, but the operator experiences fatigue when spraying overhead or at angles
Solution Approach 1:
The hopper is coupled to the nozzle holder and rotates together with it, allowing the hopper to be dynamically repositioned relative to the spray direction. This enables the operator to maintain a comfortable shooting posture while spraying overhead or at angles, reducing fatigue while the hopper maintains stability during each spray position.
Solution Approach 2:
The hopper and nozzle holder are combined into a single rotating assembly, so that when the nozzle holder rotates to adjust spray direction, the hopper automatically follows and maintains its functional position. This merging eliminates the need for separate adjustment mechanisms and reduces operator fatigue.
3Adaptability or versatility
If the hopper tilts during spray direction adjustment, then spray flexibility is improved, but material spillage occurs
Solution Approach 1:
The hopper rotates synchronously with the nozzle holder about the same center axis, maintaining a constant vertical orientation regardless of the spray direction. This dynamic rotation mechanism allows spray direction flexibility while preventing material spillage by keeping the hopper base horizontal.
Solution Approach 2:
The hopper is pre-positioned to rotate with the nozzle holder before spraying begins, ensuring that the hopper maintains its vertical orientation throughout the spray operation. This preliminary configuration prevents material spillage while enabling spray direction flexibility.
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 texture sprayer provides improved spray pattern control, reduced operator fatigue, and efficient material application by allowing for different spray characteristics and maintaining the hopper in a vertical orientation during tilting, preventing material spillage and ensuring consistent coating.
Implementation Method 1
a rotatable nozzle holder and multiple nozzles of different sizes and shapes, allowing for selective alignment with the spray axis
Implementation Method 2
maintaining the hopper in a vertical orientation during tilting, preventing material spillage
Implementation Method 3
adjustable valve assembly to enhance spray control
Implementation Method 4
the material is entrained in a stream of compressed air and expelled from the gun through a nozzle
Data Source
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AI summary
A texture sprayer (10) includes a main body (22) and an inlet (30) coupled to the main body (22). The inlet (30) is configured to receive compressed air. A mixing chamber (62) is disposed downstream of the inlet (30). The mixing chamber (62) is configured to combine the compressed air with texture material to form a texture spray. A nozzle holder (126) is coupled to the main body (22). The nozzle holder (126) is movable between a first position and a second position. A first nozzle (54A) is coupled to the nozzle holder (126) and a second nozzle (52B) is coupled to the nozzle holder (126). The texture sprayer (10) is configured to discharge the texture spray along a spray axis (58) through the first nozzle (54A) when the nozzle holder (126) is in the first position and to discharge the texture spray along the spray axis (58) through the second nozzle (54B) when the nozzle holder (126) is in the second position.