Fan-shaped glue nozzle

Abstract

This utility model relates to a fan-shaped spray nozzle, including an upper base (1), a lower base (5), a gasket, a fixing member (3), and an inner core (4); the upper base (1) and the lower base (5) are coaxially connected, and a gasket is provided between them; the inner core (4) is fixed inside the upper base (1) by the fixing member (3), and the end of the inner core (4) extends to the outlet end of the lower base (5) to form an atomization channel. Advantages of this utility model: The spray nozzle adopts a special inner core structure, and its tapered guide surface at the end forms a gradually narrowing fan-shaped gap with the side wall of the outlet end of the lower base, making the cross-section of the atomization channel have a fan-shaped diffusion structure. It can accurately cover the joints of the body sheet metal, effectively improve the sealing and corrosion resistance of the body, enhance the coating quality, and ensure the performance of the body.

Description

Technical Field

[0001] This utility model relates to a fan-shaped glue nozzle, belonging to the field of wax injection. Background Technology

[0002] Painting the car body is a crucial step in car body manufacturing. To improve the body's sealing, rust resistance, and vibration reduction, sealant wax is applied to the joints between the sheet metal panels. In the automotive manufacturing process, the quality of the body painting directly affects the vehicle's lifespan and performance.

[0003] However, existing wax spray nozzles sometimes fail to atomize or atomize unevenly when encountering high-solids waxes. This not only reduces the quality of the coating but also affects the vehicle's sealing and rust-proof performance. When the wax spray nozzle cannot effectively atomize high-solids wax, the wax cannot be evenly covered at the joints of the body panels, resulting in poor sealing and making it prone to problems such as water leakage and rust leakage. It is also detrimental to the vehicle's corrosion resistance.

[0004] Therefore, solving the atomization problem of existing wax spray nozzles when spraying high-solids wax is of great significance for improving the quality of vehicle body coating, enhancing the vehicle body's sealing properties and rust resistance. This has spurred the research and development of new wax spray nozzle technologies to meet the demands of high-quality coating processes in automobile manufacturing. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this utility model provides a fan-shaped glue nozzle. The technical solution of this utility model is as follows: A fan-shaped spray nozzle includes an upper base (1), a lower base (5), a gasket, a fixing member (3), and an inner core (4); the upper base (1) and the lower base (5) are coaxially connected, and a gasket is provided between them; the inner core (4) is fixed inside the upper base (1) by the fixing member (3), and the end of the inner core (4) extends to the outlet end of the lower base (5) to form an atomization channel.

[0006] The end of the inner core (4) is provided with a tapered guide surface, which forms a gradually narrowing fan-shaped gap between the guide surface and the side wall of the outlet end of the lower base (5), and the cross-section of the atomization channel has a fan-shaped diffusion structure.

[0007] The upper base (1) and the lower base (5) are connected by threads, and the gasket is made of corrosion-resistant elastic material to seal the joint surface of the two.

[0008] The inner core (4) is a one-piece stainless steel structure with a spiral guide groove on its surface, which extends to a conical guide surface.

[0009] The opening angle of the fan-shaped slit is 60°-150° and the slit width is 0.3-0.8mm, used to atomize high-solids wax into uniform particles with a diameter of 100-300μm.

[0010] The inlet end of the atomizing channel is connected to a wax injection rod or wax injection tube, and the outlet end faces the overlap of the body sheet metal. The sprayed fan-shaped atomized wax layer has a coverage width of 10-100mm.

[0011] The fixing component (3) is an annular locking sleeve, which presses the inner core (4) against the inner wall of the upper base (1) through an interference fit.

[0012] The outlet end of the lower base (5) is a flat flared structure with a length-to-width ratio of 3:1-8:1, which is used to constrain the atomization pattern to a directional fan shape.

[0013] The advantages of this utility model are: (1) The spray nozzle of this utility model adopts a special inner core structure. The tapered guide surface at its end and the side wall of the outlet end of the lower base form a gradually narrowing fan-shaped gap, so that the cross-section of the atomization channel has a fan-shaped diffusion structure. When the high-solids wax passes through, it can be atomized into uniform particles with a diameter of 100-300μm, and the sprayed fan-shaped atomized wax layer can cover a width of 10-100mm, accurately covering the joint of the body sheet metal, effectively improving the sealing and corrosion resistance of the body, enhancing the coating quality, and ensuring the performance of the body.

[0014] (2) In response to the problem of non-atomization or uneven atomization when the existing wax spray nozzles are used to process high solid wax, this spray nozzle optimizes the inner core design so that high solid wax can also be atomized well. This avoids problems such as poor sealing and reduced anti-corrosion ability caused by uneven wax coverage, improves coating efficiency, reduces material waste and rework costs, and meets the needs of high-quality coating processes in automobile manufacturing.

[0015] 3) The upper and lower bases are connected by threads, and a gasket made of corrosion-resistant elastic material is placed between them. This ensures the stability of the connection, effectively seals the joint surface, prevents wax leakage, extends the service life of the spray nozzle, reduces equipment maintenance costs, and ensures the continuity and stability of the coating process.

[0016] (4) The fan-shaped atomization design makes the sprayed wax liquid evenly distributed and stable in direction, making it easier for operators to control during the spraying process. It can accurately spray the wax liquid onto the joints of the body sheet metal, reduce uneven spraying or omissions caused by improper operation, improve coating efficiency and quality, and reduce dependence on the skill level of operators.

[0017] (5) The inner core is a one-piece stainless steel structure with a spiral guide groove on the surface that extends to a conical guide surface. It has good wear resistance and corrosion resistance, can effectively resist the wear and chemical corrosion of high solid wax, extend the service life of the spray nozzle, reduce the frequency of equipment replacement and maintenance costs, and ensure the efficient operation of the automotive coating production line.

[0018] (6) The lower base outlet is designed with a flat flared structure with a length-to-width ratio between 3:1 and 8:1. This can precisely constrain the atomization pattern to a directional fan shape, ensuring that the wax is sprayed out in the predetermined shape and direction, accurately covering the target area, further improving the accuracy and quality of the coating, reducing the waste of wax, optimizing the coating effect, and providing more reliable sealing and corrosion protection for the car body. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0020] Figure 2 yes Figure 1 AA sectional view.

[0021] Figure 3 yes Figure 1 Side view. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments, and the advantages and features of the present invention will become clearer as a result of the description. However, these embodiments are merely exemplary and do not constitute any limitation on the scope of the present invention. Those skilled in the art should understand that modifications or substitutions can be made to the details and form of the technical solution of the present invention without departing from the spirit and scope of the present invention, but all such modifications and substitutions fall within the protection scope of the present invention.

[0023] See Figures 1 to 3 This utility model relates to a fan-shaped spray nozzle, including an upper base 1, a lower base 5, a gasket 2, a fixing member 3, and an inner core 4; the upper base 1 and the lower base 5 are coaxially connected, and a gasket is provided between them; the inner core 4 is fixed inside the upper base 1 by the fixing member 3, and the end of the inner core 4 extends to the outlet end of the lower base 5 to form an atomization channel.

[0024] The upper base 1 and the lower base 5 are coaxially connected, and a gasket is placed between them. This design ensures the stability of the overall structure of the spray nozzle. The presence of the gasket effectively enhances the sealing between the upper and lower bases, preventing glue leakage at the connection point and ensuring the reliability and stability of the spray nozzle during operation.

[0025] The inner core 4 is fixed inside the upper base 1 by the fastener 3, and its end extends to the outlet end of the lower base 5, thus forming a channel for adhesive atomization. This layout can precisely guide the flow of adhesive and ensure that the adhesive is fully atomized when passing through the end of the inner core, improving the quality and uniformity of adhesive spraying.

[0026] The fastener 3 uses an interference fit to press the inner core 4 against the inner wall of the upper base 1. This connection method not only ensures the stability of the inner core during operation, preventing it from shifting or loosening due to the pressure of the adhesive spraying, but also facilitates the disassembly and replacement of the inner core when needed, reducing the maintenance cost and repair difficulty of the equipment.

[0027] All components work together seamlessly to form a compact spray nozzle assembly. This compact design helps reduce the space occupied by the spray nozzle on automotive painting equipment or production lines, facilitates integration and coordination with other related components, and improves the space utilization efficiency and operational convenience of the entire painting system.

[0028] The tapered guide surface of the inner core 4 and the side wall of the outlet end of the lower base 5 form a gradually narrowing fan-shaped gap, making the cross-section of the atomization channel have a fan-shaped diffusion structure. This specially designed fan-shaped gap can generate uniform shear force on the flow of the adhesive, so that the adhesive forms a uniform fan-shaped atomization effect when sprayed, ensuring that the adhesive can accurately cover the joint of the body sheet metal, improving the accuracy and quality of the coating.

[0029] The inner core 4 has a tapered guide surface at its end, which forms a gradually narrowing fan-shaped gap with the side wall of the outlet end of the lower base 5. The cross-section of the atomization channel has a fan-shaped diffusion structure.

[0030] The tapered guide surface and the gradually narrowing fan-shaped gap formed by the lower base outlet sidewall allow the adhesive to be subjected to uniform shear force as it passes through, creating a uniform fan-shaped atomization effect. This helps improve coating quality, ensuring that the adhesive can accurately cover the target area and enhance the vehicle body's sealing and corrosion resistance.

[0031] The fan-shaped slit has an opening angle of 60°-150° and a slit width of 0.3-0.8mm, used to atomize high-solids wax into uniform particles with a diameter of 100-300μm. This structure can effectively handle high-viscosity adhesives such as high-solids waxes. The tapered fan-shaped slit design ensures good atomization of high-viscosity adhesives during spraying, overcoming the shortcomings of traditional nozzles that produce uneven or non-atomized atomization when dealing with high-viscosity adhesives, thus expanding the application range of the nozzle.

[0032] The atomization channel has a fan-shaped diffusion structure in its cross-section, allowing the sprayed adhesive to form a fan-shaped atomized wax layer of a specific width, with a coverage width of 10-100mm. This design allows for adjustment of the adhesive coverage area according to actual coating needs, improving coating accuracy and efficiency.

[0033] The upper base 1 and the lower base 5 are connected by threads, and the gasket is made of corrosion-resistant elastic material to seal the joint surface of the two.

[0034] The inner core 4 is a one-piece stainless steel structure with a spiral guide groove on its surface, which extends to a conical guide surface.

[0035] The inlet end of the atomizing channel is connected to a wax injection rod or wax injection tube, and the outlet end faces the overlap of the body sheet metal. The sprayed fan-shaped atomized wax layer has a coverage width of 10-100mm.

[0036] The fixing component 3 is an annular locking sleeve, which presses the inner core 4 against the inner wall of the upper base 1 through an interference fit.

[0037] The outlet end of the lower base 5 is a flat flared structure with a length-to-width ratio of 3:1-8:1, which is used to constrain the atomization pattern to a directional fan shape.

[0038] The flat, flared structure at the outlet end of the lower base 5 precisely constrains the atomized adhesive into a directional fan shape. This design ensures stable spray direction and shape of the adhesive, allowing the fan-shaped atomized wax layer to accurately cover target areas such as the joints of the body panels, improving the accuracy and quality of the coating and reducing adhesive waste.

[0039] The aspect ratio can be flexibly adjusted within the range of 3:1 to 8:1. By changing the aspect ratio, it can adapt to the overlapping parts of body panels of different sizes and shapes, meeting diverse painting needs. This allows the spray nozzle to flexibly adjust the spray coverage according to actual production needs, improving the versatility and adaptability of the painting process.

[0040] The directional fan-shaped atomization pattern helps reduce the adhesion of adhesive to non-target areas, lowering the risk of environmental pollution. At the same time, precise spray control reduces adhesive waste, lowers production costs, and improves the environmental friendliness and economy of the coating process.

[0041] The working principle of this utility model is as follows: First, the upper base 1 and the lower base 5 are coaxially assembled via a threaded connection, with a gasket 2 made of corrosion-resistant elastic material placed between them. This design ensures the overall stability of the nozzle structure and effectively enhances the sealing between the upper and lower bases, preventing glue leakage at the connection point and guaranteeing the reliability and stability of the nozzle during operation.

[0042] Next, the inner core 4 is fixed to the inside of the upper base 1 by the fixing part 3 (annular locking sleeve) with an interference fit, and its end extends to the outlet end of the lower base 5, thus forming a channel for adhesive atomization. This connection method of the fixing part not only ensures the stability of the inner core during operation, preventing the inner core from shifting or loosening due to the pressure during adhesive spraying, but also facilitates the disassembly and replacement of the inner core when needed, reducing the maintenance cost and repair difficulty of the equipment.

[0043] When the adhesive enters from the wax injection rod or tube connected to the inlet end of the atomization channel, the special structure of the inner core 4 begins to function. The inner core surface is provided with spiral guide grooves that extend to a conical guide surface at their ends. Guided by the inner core, the adhesive flows, and the spiral guide grooves create a certain rotational motion, increasing the turbulence of the adhesive and preparing it for the subsequent atomization process.

[0044] Subsequently, the adhesive reaches the tapered guide surface at the end of the inner core 4, forming a tapering fan-shaped gap between this guide surface and the side wall of the outlet end of the lower base 5. This tapering fan-shaped gap design ensures that the adhesive experiences uniform shear force as it passes through, resulting in a uniform fan-shaped atomization effect when sprayed. This specially designed fan-shaped gap generates uniform shear force on the adhesive flow, ensuring that the adhesive accurately covers the joints of the body sheet metal, improving the accuracy and quality of the coating.

[0045] Furthermore, the outlet end of the lower base 5 features a flat, flared structure with an aspect ratio of 3:1-8:1, designed to constrain the atomization pattern to a directional fan shape. This structure not only ensures stable spray direction and shape of the adhesive, allowing the fan-shaped atomized wax layer to precisely cover target areas such as the joints between body panels, thus improving coating accuracy and quality and reducing adhesive waste, but also allows for flexible adjustment of the aspect ratio according to actual coating needs. This adapts to body panel joints of different sizes and shapes, meeting diverse coating requirements and enhancing the versatility and adaptability of the spray nozzle.

[0046] Ultimately, the sprayed fan-shaped atomized wax layer can cover a width of 10-100mm, effectively covering the joints of the body sheet metal and improving the body's sealing and corrosion resistance. The entire spray nozzle has a compact structure, which helps reduce the space occupied on automotive painting equipment or production lines, facilitates integration and coordination with other related components, and improves the space utilization efficiency and operational convenience of the entire painting system.

[0047] In summary, the fan-shaped spray nozzle of this invention achieves efficient atomization of high-viscosity adhesives such as high-solids waxes through the close cooperation of its components, thereby improving coating quality, enhancing vehicle body sealing and corrosion resistance, while reducing equipment maintenance and production costs, and improving the environmental friendliness and economy of the coating process.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fan-shaped glue nozzle, characterized in that, It includes an upper base (1), a lower base (5), a gasket, a fixing member (3) and an inner core (4); the upper base (1) and the lower base (5) are coaxially connected, and a gasket is provided between them; the inner core (4) is fixed inside the upper base (1) by the fixing member (3), and the end of the inner core (4) extends to the outlet end of the lower base (5) to form an atomization channel.

2. The fan-shaped glue nozzle according to claim 1, characterized in that, The end of the inner core (4) is provided with a tapered guide surface, which forms a gradually narrowing fan-shaped gap between the guide surface and the side wall of the outlet end of the lower base (5), and the cross-section of the atomization channel has a fan-shaped diffusion structure.

3. The fan-shaped glue nozzle according to claim 1, characterized in that, The upper base (1) and the lower base (5) are connected by threads, and the gasket is made of corrosion-resistant elastic material to seal the joint surface of the two.

4. The fan-shaped glue nozzle according to claim 1, characterized in that, The inner core (4) is a one-piece stainless steel structure with a spiral guide groove on its surface, which extends to a conical guide surface.

5. The fan-shaped glue nozzle according to claim 2, characterized in that, The opening angle of the fan-shaped slit is 60°-150° and the slit width is 0.3-0.8mm, used to atomize high-solids wax into uniform particles with a diameter of 100-300μm.

6. The fan-shaped glue nozzle according to claim 1, characterized in that, The inlet end of the atomizing channel is connected to a wax injection rod or wax injection tube, and the outlet end faces the overlap of the body sheet metal. The sprayed fan-shaped atomized wax layer has a coverage width of 10-100mm.

7. The fan-shaped glue nozzle according to claim 1, characterized in that, The fixing component (3) is an annular locking sleeve, which presses the inner core (4) against the inner wall of the upper base (1) through an interference fit.

8. The fan-shaped glue nozzle according to any one of claims 1-7, characterized in that, The outlet end of the lower base (5) is a flat flared structure with a length-to-width ratio of 3:1-8:1, which is used to constrain the atomization pattern to a directional fan shape.

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