All-round aluminum alloy polyurethane spray gun

Abstract

The utility model provides an all-round aluminum alloy polyurethane spray gun. The all-round aluminum alloy polyurethane spray gun comprises a gun body, a gun handle power switch line, a white material conveying mechanism, a white material cleaning gun air pipe, a white material connector, a white material pipe valve, a black material conveying mechanism, a black material cleaning gun air pipe, a black material connector, a black material pipe valve and a gun head. The gun body is of an L-shaped structure similar to English, one end of the gun body is fixedly connected with the gun head and communicates with the gun head, the lower portion of one side of the gun body communicates with the air valve switch, the white material conveying mechanism is arranged on one side of the gun body, and the white material conveying mechanism is arranged on the other side of the gun body. The white material conveying mechanism is composed of a white material cleaning gun air pipe, a white material connector and a white material pipe valve. By improving the universal aluminum alloy polyurethane spray gun, the universal aluminum alloy polyurethane spray gun has the advantages that the service life is prolonged, the universal aluminum alloy polyurethane spray gun can be quickly and conveniently mounted and quickly cleaned, the material spraying effect can be accurately controlled, the universal aluminum alloy polyurethane spray gun can adapt to different types of spray heads, and the mixing proportion can be accurately controlled.

Description

Technical Field

[0001] This utility model relates to the field of spraying technology, and more specifically, to an all-purpose aluminum alloy polyurethane spray gun. Background Technology

[0002] Spraying is a coating method that uses a spray gun or disc atomizer to disperse the material into uniform and fine droplets using pressure or centrifugal force, and then applies the coating to the surface of the object. It can be divided into air spraying, airless spraying, electrostatic spraying, and various derivatives of the above basic spraying forms, such as high-flow-rate low-pressure atomization spraying, thermal spraying, automatic spraying, and multi-group spraying. Spray guns are required for spraying operations. In the industry, spray guns can be directly loaded with paint for use, i.e., simple spray guns can be installed in automated equipment, such as automatic glue spraying machines, automatic glue applicators, automatic paint spraying machines, coating machines, and other spraying equipment.

[0003] Most commercially available spray gun equipment uses a dual-discharge pipeline design, meaning it has two discharge pipelines, each equipped with a valve. These are then connected by welding to a relatively narrow mixing spray pipeline. This structure reveals significant problems in actual use. When the two liquids flow too quickly in the pipeline, or when the operator attempts to increase the flow rate to improve efficiency, the equipment's air pressure cannot keep up with the change in flow rate. In this situation, material easily accumulates inside the spray gun, causing blockage and disrupting the spraying process. This severely impacts the continuity and smoothness of production. Furthermore, the pipeline is made of iron, but its inner wall has poor smoothness. Polyurethane material itself has high viscosity, and when it comes into contact with this rough-walled iron pipe, a strong adhesion is formed between the two. Due to its inherent structural defects, polyurethane material gradually adheres to and accumulates on the inner wall of the tube as production continues, especially at the nozzle and barrel. This accumulation is particularly severe, eventually leading to blockage of the nozzle and barrel. Once blockage occurs, cleaning the material is extremely difficult, requiring significant manpower, resources, and time, severely impacting the normal operating efficiency and production progress. Furthermore, there are serious defects in the material mixing process, making it impossible to accurately control the mixing ratio. This directly results in reduced foaming volume, making it difficult to meet product quality standards. More importantly, it cannot adequately meet the needs of applications with high requirements for mixed materials. The inability to achieve precise compatibility of various materials at different ratios greatly limits the application range of the equipment, making it unable to adapt to diverse and high-precision production demands and putting it at a disadvantage in market competition.

[0004] In view of this, we have studied and improved upon the existing problems to provide an all-purpose aluminum alloy polyurethane spray gun, aiming to solve the problems and improve its practical value through this technology. Utility Model Content

[0005] The purpose of this invention is to provide an all-purpose aluminum alloy polyurethane spray gun to solve the problems and shortcomings mentioned in the background art, such as inconvenient equipment cleaning and low accuracy of mixing ratio control.

[0006] To achieve the above objectives, this utility model provides an all-purpose aluminum alloy polyurethane spray gun, which is achieved through the following specific technical means:

[0007] This is a versatile aluminum alloy polyurethane spray gun, comprising: a gun body, a gun handle power switch, a white material conveying mechanism, a white material cleaning air pipe, a white material interface, a white material pipe valve, an air valve switch, a feed switch, a gun head, a black material conveying mechanism, a black material cleaning air pipe, a black material interface, and a black material pipe valve. The gun body has an approximate "L" shaped structure. One end of the gun body is fixedly connected to and communicates with the gun head. An air valve switch is connected to and communicates with the lower side of the gun body. A white material conveying mechanism is located on one side of the gun body, consisting of a white material cleaning air pipe, a white material interface, and a white material pipe valve. The white material interface is fixedly connected to and communicates with the outer wall of one side of the gun body. A white material pipe valve is provided on one side of the material interface. A white material cleaning air pipe is fixedly connected to the top of the white material interface and communicates with it. A black material conveying mechanism is provided on one side of the gun body. The black material conveying mechanism consists of a black material cleaning air pipe, a black material interface, and a black material pipe valve. The black material interface is fixedly connected to the outer wall of one side of the gun body and communicates with it. A black material pipe valve is provided on one side of the black material interface. A black material cleaning air pipe is fixedly connected to the top of the black material interface and communicates with it. A gun handle power switch line is provided on one side of the gun body, and a connector is provided at the end of the gun handle power switch line. A feed switch is installed on the side of the gun body near the gun handle power switch line.

[0008] As a further optimization of this technical solution, the end of the nozzle of the all-purpose aluminum alloy polyurethane spray gun of this utility model is machined with threads.

[0009] As a further optimization of this technical solution, the white material interface and the black material interface of the all-purpose aluminum alloy polyurethane spray gun of this utility model are both regular pentagonal interfaces and are equipped with sealing gaskets.

[0010] As a further optimization of this technical solution, an arc-shaped groove is machined below the feeding switch of the all-purpose aluminum alloy polyurethane spray gun of this utility model.

[0011] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0012] 1. Regarding the design of the white material conveying mechanism, black material conveying mechanism, gun body, and gun head of this utility model, firstly, in terms of the material selection for the gun body, we have boldly innovated, abandoning conventional materials and replacing the entire gun body with aluminum alloy. This change is not a simple material replacement, but an innovative move that deeply integrates advanced domestic and international technological concepts. Aluminum alloy not only has excellent lightweight characteristics, which can significantly reduce the burden on operators during long-term work, but also its good corrosion resistance greatly extends the service life of the gun body. At the same time, we have also carefully improved the valve system of the spray gun. The copper valves for black and white materials commonly found in spray guns on the market have been replaced with stainless steel valves. Stainless steel valves have higher strength and better chemical corrosion resistance, effectively improving the stability and reliability of the spray gun in complex working environments. It is worth mentioning that we have also cleverly used color-coding on the valves, with clear distinction between black and white materials. Even novices who are new to spray gun installation can quickly and accurately complete the installation, greatly reducing the installation difficulty and improving work efficiency.

[0013] In terms of nozzle design, we have fully considered the potential clogging issues that may occur during actual use and have carried out comprehensive optimization. The nozzle adopts a modular and detachable design. This modular structure makes the nozzle less prone to clogging as a whole. Even if clogging occurs in a very small probability, operators can easily disassemble the relevant parts for quick cleaning, effectively reducing equipment downtime caused by clogging and ensuring the continuity of production operations.

[0014] The air valve of the spray gun also showcases our ingenuity. The air valve can be precisely adjusted manually, allowing operators to flexibly adjust the gas flow according to different work needs, thereby achieving precise control over the spraying effect. Whether it is fine spraying or large-area material spraying, it can easily handle it and meet diverse construction requirements.

[0015] Furthermore, the threaded design of the nozzle is a major highlight. Our carefully designed thread specifications can be adapted to a variety of different nozzles on the market. This means that users do not need to worry about compatibility issues caused by changing different functional nozzles, which greatly expands the scope of application of the spray gun and enables it to perform at its best in different working scenarios.

[0016] Most importantly, through a series of technical optimizations and precise designs, our spray gun has truly achieved precise control of the mixing ratio of 1:1. This outstanding achievement allows the material to react fully, resulting in a high foaming rate. A high foaming rate not only means better material utilization efficiency, but also brings users a better and more efficient working experience, making it stand out among many similar products.

[0017] 2. This utility model improves the all-purpose aluminum alloy polyurethane spray gun, which has the advantages of extended service life, quick and convenient installation, rapid cleaning, precise control of spraying effect, adaptability to different types of nozzles and precise control of mixing ratio, thus effectively solving the problems and shortcomings of existing devices. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

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

[0020] Figure 2 This is a schematic diagram of the structure of the black material cleaning gun air pipe, black material interface, and black material pipe valve of this utility model.

[0021] Figure 3 This is a schematic diagram of the feeding switch and gun body of this utility model;

[0022] Figure 4 This is a schematic diagram of the gun body and gun head of this utility model.

[0023] In the diagram: 1. Gun body; 2. Gun handle power switch wire; 3. White material conveying mechanism; 31. White material cleaning air pipe; 32. White material interface; 33. White material pipe valve; 4. Air valve switch; 5. Feeding switch; 6. Gun head; 7. Black material conveying mechanism; 71. Black material cleaning air pipe; 72. Black material interface; 73. Black material pipe valve. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are some embodiments of the present utility model, but not all embodiments.

[0025] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms “first,” “second,” “third,” etc., are used for descriptive purposes only and should not be interpreted as indicating or implying relative importance.

[0027] Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Please see Figures 1 to 4 This utility model provides a specific technical implementation scheme for an all-purpose aluminum alloy polyurethane spray gun:

[0029] This is a versatile aluminum alloy polyurethane spray gun, comprising: gun body 1, gun handle power switch 2, white material conveying mechanism 3, white material cleaning air pipe 31, white material interface 32, white material pipe valve 33, air valve switch 4, feed switch 5, gun head 6, black material conveying mechanism 7, black material cleaning air pipe 71, black material interface 72, and black material pipe valve 73. The gun body 1 has an approximate "L" shape. One end of the gun body 1 is fixedly connected to and communicates with the gun head 6. An air valve switch 4 is connected to and communicates with the lower side of the gun body 1. A white material conveying mechanism 3 is located on one side of the gun body 1, consisting of a white material cleaning air pipe 31, a white material interface 32, and a white material pipe valve 33. The white material interface 32 is fixedly connected to and communicates with the outer wall of one side of the gun body 1. A white material pipe valve 33 is located on one side of the white material interface 32. A white material cleaning air pipe 31 is fixedly connected to the top of the gun body 1 and is connected to it. A black material conveying mechanism 7 is provided on one side of the gun body 1. The black material conveying mechanism 7 consists of a black material cleaning air pipe 71, a black material interface 72, and a black material pipe valve 73. The black material interface 72 is fixedly connected to the outer wall of one side of the gun body 1 and is connected to it. A black material pipe valve 73 is provided on one side of the black material interface 72. A black material cleaning air pipe 71 is fixedly connected to the top of the black material interface 72 and is connected to it. The operator can control the conveying volume of black material and white material according to the black material pipe valve 73 and the white material pipe valve 33 respectively. The operator can use the black material cleaning air pipe 71 and the white material cleaning air pipe 31 through an external air supply device to clean the black material interface 72, the white material interface 32, and the gun body 1 with gas, thereby avoiding the phenomenon of blockage after use.

[0030] A power switch wire 2 is provided on one side of the gun body 1, and a connector is provided at the end of the power switch wire 2. A feed switch 5 is installed on the side of the gun body 1 near the power switch wire 2. The operator can use the power switch wire 2 to connect the all-purpose aluminum alloy polyurethane spray gun to the external circuit. The feed switch 5 can control whether to supply black and white materials to the gun body 1. This is a well-known technology in the art, so it will not be described in detail here. Those skilled in the art should understand it in a broad sense.

[0031] The end of the nozzle 6 is threaded; the threaded design allows workers to more easily and quickly install external nozzles on top of the nozzle 6.

[0032] Both the white material interface 32 and the black material interface 72 are regular pentagonal interfaces and are equipped with sealing gaskets. Workers can connect the external white and black material delivery pipes to the all-purpose aluminum alloy polyurethane spray gun through the white material interface 32 and the black material interface 72. The design of the sealing gasket can improve the connection sealing performance. The specific connection method is not limited and can be heat fusion or other suitable connection and installation methods. The specific method can be selected according to the actual use requirements. This case will not be elaborated in detail here, and those skilled in the art should interpret it in a broad sense.

[0033] The feed switch 5 has an arc-shaped groove machined below it; the operator can operate the feed switch 5 more conveniently through the arc-shaped groove.

[0034] Specifically, workers should use paint to distinguish between the black material pipe valve 73 and the white material pipe valve 33, or use other methods to change their colors. This allows workers to connect the black and white material pipes more easily and quickly based on the color display. When connecting the nozzle 6 to an external spray head, a rubber gasket should be used to ensure a tight seal between the nozzle 6 and the spray head, preventing paint leakage. Both the white material cleaning air pipe 31 and the black material cleaning air pipe 71 are equipped with one-way valves to prevent paint from entering the external air supply equipment through these pipes during spraying. The air valve switch 4, the white material cleaning air pipe 31, and the black material cleaning air pipe 71 in this case can be connected to an external air supply device. The selection and connection method of the external air supply device can be chosen according to actual usage requirements. This case does not impose any restrictions, as long as the technical features of this case are met.

[0035] Specific implementation steps:

[0036] During use, the operator connects the all-purpose aluminum alloy polyurethane spray gun to the external circuit using the gun handle power switch wire 2. Then, the black and white material tubes are connected to the black material interface 72 and the white material interface 32, respectively. Next, the all-purpose aluminum alloy polyurethane spray gun is connected to the external nozzle using the gun head 6. Then, the air valve switch 4 is connected to the external air supply equipment. After that, the feeding switch 5 can be turned on to start the operation. The operator can control the amount of paint sprayed by adjusting the black material tube valve 73 and the white material tube valve 33. After use, the operator connects the air supply equipment to the white material cleaning air tube 31 and the black material cleaning air tube 71. At this time, the air supply device can be used to clean the residual paint. The cleaned paint leaves the inside of the gun body 1 from the gun head 6.

[0037] In summary, this versatile aluminum alloy polyurethane spray gun, through the design of its white material conveying mechanism, black material conveying mechanism, gun body, and nozzle, firstly, in terms of the material selection for the gun body, we boldly innovated, abandoning conventional materials and replacing the entire gun body with aluminum alloy. This change is not a simple material replacement, but an innovative move that deeply integrates advanced domestic and international technological concepts. Aluminum alloy not only possesses excellent lightweight characteristics, significantly reducing the burden on operators during long-term work, but its good corrosion resistance also greatly extends the service life of the gun body. Simultaneously, we have also carefully improved the spray gun's valve system, replacing the commonly used copper valves for black and white materials in commercially available spray guns with stainless steel valves, which have higher strength. With improved chemical corrosion resistance, the spray gun's stability and reliability in complex working environments are effectively enhanced. Notably, the valves are cleverly color-coded, with clear distinction between black and white, allowing even beginners to quickly and accurately complete the installation, greatly reducing installation difficulty and improving work efficiency. Regarding the nozzle design, we have fully considered potential clogging issues during actual use and optimized it comprehensively. The nozzle adopts a modular and detachable design. This modular structure makes the nozzle less prone to clogging. Even in the extremely rare event of clogging, operators can easily disassemble the relevant components for quick cleaning, effectively reducing... Reduced downtime due to blockages ensures continuous production. The spray gun's air valve also showcases our ingenuity; it can be precisely adjusted manually, allowing operators to flexibly adjust the gas flow according to different work needs, thus achieving precise control over the spraying effect. Whether it's fine spraying or large-area material spraying, it can easily handle diverse construction requirements. Furthermore, the threaded design of the nozzle is a major highlight. Our carefully designed thread specifications are compatible with various types of nozzles on the market. This means users don't need to worry about compatibility issues when changing to different nozzles, greatly expanding the spray gun's application range and enabling it to work in various scenarios. To achieve optimal performance, and most importantly, through a series of technical optimizations and precise design, our spray gun truly achieves precise control of the 1:1 mixing ratio. This remarkable achievement allows the material to fully react, resulting in a high foaming rate. A high foaming rate not only means better material utilization efficiency but also brings users a higher quality and more efficient working experience, making it stand out among many similar products. This utility model, through improvements to the all-purpose aluminum alloy polyurethane spray gun, has the advantages of extended service life, quick and convenient installation, rapid cleaning, precise control of spraying effect, adaptability to different types of nozzles, and precise control of mixing ratio, thus effectively solving the problems and shortcomings of existing devices.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. All-purpose aluminum alloy polyurethane spray gun, including: Gun body (1), gun handle power switch line (2), white material conveying mechanism (3), white material cleaning air pipe (31), white material interface (32), white material pipe valve (33), air valve switch (4), feeding switch (5), gun head (6), black material conveying mechanism (7), black material cleaning air pipe (71), black material interface (72), black material pipe valve (73); characterized in that: the gun body (1) is in the shape of an English "L", one end of the gun body (1) is fixedly connected to the gun head (6) and communicates with the gun head (6), an air valve switch (4) is connected to the lower side of the gun body (1) and communicates with the air valve switch (4), a white material conveying mechanism (3) is provided on one side of the gun body (1), the white material conveying mechanism (3) is composed of white material cleaning air pipe (31), white material interface (32) and white material pipe valve (33), and so on. The white material interface (32) is fixedly connected to the outer wall of one side of the gun body (1) and communicates with the gun body (1). A white material pipe valve (33) is provided on one side of the white material interface (32). A white material cleaning air pipe (31) is fixedly connected above the white material interface (32) and communicates with the white material cleaning air pipe (31). A black material conveying mechanism (7) is provided on one side of the gun body (1). The black material conveying mechanism (7) consists of a black material cleaning air pipe (71), a black material interface (72), and a black material pipe valve (73). The black material interface (72) is fixedly connected to the outer wall of one side of the gun body (1) and communicates with the gun body (1). A black material pipe valve (73) is provided on one side of the black material interface (72). A black material cleaning air pipe (71) is fixedly connected above the black material interface (72) and communicates with the black material cleaning air pipe (71). A gun handle power switch line (2) is provided on one side of the gun body (1), and a connector is provided at the end of the gun handle power switch line (2). A feed switch (5) is installed on the side of the gun body (1) near the gun handle power switch line (2). The end of the gun head (6) is threaded. The white material interface (32) and the black material interface (72) are both regular pentagonal interfaces and are provided with sealing gaskets. An arc-shaped groove is machined below the feed switch (5).

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