Spray Gun Nozzle Integrating Baffle Plate to Eliminate Sealing Rings
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Solution Overview
Problem
Conventional spray guns, particularly paint spray guns, face issues with complex and fragile air distributor rings that require separate manufacturing and assembly, leading to potential loss and damage, compromising the seal between atomizer and horn air areas, which affects the spray jet's quality and reliability.
Innovation Solution
A nozzle design featuring a baffle plate that is captively arranged, eliminating the need for separate sealing elements by integrating the baffle plate directly with the nozzle, ensuring an airtight connection and reducing the number of individual parts, thus enhancing reliability and simplifying production through methods like 3D printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate air distributor ring is used to seal between atomizer and horn air areas, then the spray jet quality can be maintained, but the device complexity increases and reliability decreases due to multiple separate parts
Solution Approach 1:
The patent combines the air distributor ring function directly into the nozzle body, eliminating the need for a separate air distributor ring component. The nozzle body now integrates the sealing function between atomizer air and horn air areas, reducing the number of parts from multiple separate components to a unified structure, thereby improving reliability and reducing device complexity
2Ease of manufacture
If multiple separate components (air distributor ring, sealing elements) are used, then the spray gun can be assembled from modular parts, but the ease of manufacture decreases and production complexity increases
Solution Approach 1:
The patent merges the air distributor ring and sealing elements into the nozzle body as an integrated component. This unified design simplifies the manufacturing process by reducing the number of separate parts that need to be produced, assembled, and sealed, thereby improving ease of manufacture and reducing production complexity
3Reliability
If separate sealing elements are used between air areas, then the seal can be maintained, but the loss of substance increases due to potential damage and loss of sealing components
Solution Approach 1:
The patent integrates the sealing function into the nozzle body structure itself, eliminating separate sealing elements that can be damaged or lost. The unified design ensures that the seal between atomizer air and horn air areas is maintained through the structural integrity of the nozzle body, preventing air leakage and substance loss
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 nozzle design improves the reliability and durability of spray guns by eliminating the need for separate sealing elements, reducing the risk of damage and loss, and simplifying production, while maintaining efficient air flow and atomization.
Implementation Method 1
the atomizing air, which, in the nozzle arrangement described above, creates a vacuum at the face of the paint nozzle, sucking the material to be sprayed out of the paint nozzle
Implementation Method 2
these threads and bands break up into droplets, which are blown away from the nozzle by the atomizing air
Implementation Method 3
the interaction between the rapidly flowing compressed air and the ambient air, and aerodynamic disturbances, these threads and bands break up into droplets
Implementation Method 4
the so-called horn air exiting from the horn air bores can influence the air that has already escaped from the annular gap, or the paint jet or the paint mist that has already at least partially formed. As a result, the paint jet, or spray jet with its originally circular cross-section (round jet), is compressed at the sides facing the horns and extended in a perpendicular direction
Data Source
Figure 1~2
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Figure 4
AI summary
The invention relates to a nozzle (24, 50) for a spray gun (1), in particular a paint spray gun, wherein the nozzle (24, 50) has at least one material nozzle (40) with a hollow section for conveying the material to be sprayed and a material outlet opening (28) as well as a disc element (32) extending radially from the material nozzle (40) and wherein the disc element (32) has at least one through-opening (36), wherein the nozzle (24, 50) has at least one first impact disc (30, 31) arranged on the disc element (32), in particular in a captive manner, with an inner and an outer circumference, and wherein the first impact disc (30, 31) is arranged directly on the disc element (32), in particular without an intermediate sealing element.The invention further relates to a nozzle set for a spray gun, in particular a paint spray gun, spray guns, in particular paint spray guns, and a method for manufacturing a nozzle for a spray gun, in particular a paint spray gun. The described embodiments of the nozzle, the nozzle set, and the paint spray guns according to the invention, as well as the method for manufacturing a nozzle according to the invention, eliminate the need for separate sealants or sealing elements, such as sealing rings. The disadvantages of having to manufacture separate sealing elements, which can be lost or damaged, are thereby avoided. Consequently, the nozzle, the nozzle set, the paint spray guns, and the nozzles manufactured using the method according to the invention are reliable, have few individual parts, a compact design, and operate quietly.