Automatic spray gun structure for ruling machine

Abstract

According to the automatic spray gun structure for the ruling machine, an automatic spray gun comprises a spray gun mixer, a high-pressure gas adding opening, a feeding opening and a nozzle assembly, mixing connectors are arranged on the front side and the rear side of the spray gun mixer in a protruding mode, a connecting assembly rod is arranged on the outer side of the side face of the spray gun mixer, and the nozzle assembly is arranged at the bottom of the spray gun mixer; by means of the mixed automatic spray gun, high-pressure spraying of the ruling machine is achieved, pressure adjustment of the spray nozzle can be facilitated, the standard spraying effect can be achieved according to different spraying materials, the spray gun is convenient to disassemble, clean or replace when going wrong due to the design of full bolt connection, and the spraying efficiency is improved. Therefore, the service life of the spray gun is greatly prolonged, and the use quality of the spray gun is guaranteed.

Description

Technical Field

[0001] This article belongs to the technical field of road marking machine spray guns, specifically involving an automatic spray gun structure for a road marking machine. Background Technology

[0002] Paint spray guns are a common painting tool used to spray paint onto various surfaces. Paint spray guns used in line marking machines are specially designed for marking roads, parking lots, and other areas. These spray guns typically use high-pressure spraying technology to spray paint onto the ground at high speed to form clear and bright markings. Unlike ordinary paint spray guns, paint spray guns used in line marking machines usually need to have high wear resistance and corrosion resistance to meet the requirements of long-term use and working in harsh environments.

[0003] In addition, this spray gun needs to have the function of precisely adjusting the spray volume and spray width to ensure the accuracy and consistency of the markings. When using it, operators need to pay attention to safety, wear protective glasses and gloves, and follow the relevant operating procedures.

[0004] Meanwhile, to ensure the spraying effect, the spray gun needs to be thoroughly cleaned and maintained before spraying to avoid problems such as paint clogging or missed spraying. In addition, the existing line marking machines have a hopper behind the nozzle to collect the mixed and melted spraying material before spraying it out under high pressure. However, such a hopper is very prone to material splashing during the material receiving process, causing droplets to fall on the ground. The paint spray gun used for line marking machines is a professional road marking spraying tool with the characteristics of high efficiency, precision and durability. However, it will affect the construction period and cause uneven paint spraying, affecting the quality and aesthetics of the markings. Utility Model Content

[0005] To address the aforementioned issues, this paper proposes an automatic spray gun structure for a line marking machine. The automatic spray gun includes a spray gun mixer, a high-pressure air inlet, a material inlet, and a nozzle assembly. The top of the spray gun mixer is equipped with a cleaning cover. Both the front and rear sides of the spray gun mixer have protruding mixing interfaces. A connecting rod is located on the outer side of the spray gun mixer. The bottom of the spray gun mixer has a nozzle assembly. A high-pressure air inlet and a material inlet are respectively connected above the mixing interfaces on the front and rear sides. The nozzle assembly includes a nozzle connector, an open nozzle, and a nozzle pressure adjusting rod. The nozzle connector is integrally connected to the bottom surface of the spray gun mixer, and the bottom of the nozzle connector is threaded for rotational connection. The spray gun is equipped with an open nozzle, which is a rectangular nozzle with an outward expansion in a figure-eight shape. A nozzle pressure adjustment rod protrudes from the front of the open nozzle and is rotatably connected to the inner upper part of the open nozzle. By using a hybrid automatic spray gun, the integrity of the spray gun is ensured, the spraying quality is improved, and high-pressure spraying of the line marking machine is achieved. It also facilitates nozzle pressure adjustment and can achieve standard spraying effects according to different spraying materials. Furthermore, the all-bolted connection design makes it easy to disassemble, clean, or replace the spray gun when problems occur, thereby greatly increasing the service life of the spray gun and ensuring the quality of use.

[0006] The spray gun mixer has a rectangular shell shape. It has openings at the top and bottom, and horizontally extending bolt holes on both sides. The front and rear sides have protruding mixing ports. A cleaning cover is threaded onto the top opening, and a nozzle connection port is threaded onto the bottom opening. The outer side of the spray gun mixer extends horizontally and is connected to a connecting rod via bolt holes. The upper surface of the outer end of the mixing port has a horizontally extending connecting surface. A high-pressure air inlet and a material inlet are threaded onto the connecting surface of the mixing port. The spray gun mixer achieves the effect of simultaneously injecting and mixing paint and air pressure, resulting in efficient paint spraying. It also facilitates spray gun assembly and allows for installation in specific locations on marking machines, increasing its adaptability.

[0007] The connecting assembly rod is a rectangular long bar. One end of the connecting assembly rod is fixedly connected to the spray gun mixer by bolts, and the other end of the connecting assembly rod is connected to the front end of the line marking machine through an adjustable connection. The spray gun is stably extended and installed through the connecting assembly rod, which facilitates the operation and spraying of the line marking machine.

[0008] The high-pressure air inlet is a quick-connect air hose connection. The bottom of the high-pressure air inlet is connected to the mixing interface at the rear end of the spray gun mixer via a thread, and the top of the high-pressure air inlet is connected to the pressurized air hose via a quick-connect air hose port. The high-pressure pump on the marking machine is connected to the high-pressure air inlet via a conduit, thereby allowing high-pressure gas to be delivered into the interior of the spray gun mixer, so as to pressurize and spray the paint with high-pressure gas.

[0009] The feeding port is a metal threaded interface. The inner side of the feeding port has a vertically guiding hole, and the outer surface of the feeding port has a connecting thread. The bottom of the feeding port is connected to the mixing interface through the connecting thread, and the top of the feeding port is connected to the hot melt material pipe through the connecting thread. The high-temperature heated paint is then transported into the spray gun mixer through the feeding port. The metal feeding port is required to ensure stable feeding and stable installation of the material pipe, thus achieving efficient and stable nozzle spraying.

[0010] The cleaning cover is a high-pressure sealed rotating cover. The bottom of the cleaning cover is fixedly and sealed to the top of the spray gun mixer by threads. The top center of the cleaning cover has a connecting bolt hole. The cleaning cover seals the inside of the spray gun mixer and facilitates subsequent cleaning of the inside of the mixer, ensuring the service life of the spray gun.

[0011] The nozzle connector is a hexagonal nut connector. The top of the nozzle connector is connected to the inside of the spray gun mixer via a thread, and the bottom of the nozzle connector is fixedly connected to the open nozzle. The open nozzle is threadedly connected to the spray gun mixer through the nozzle connector, and it can also be used to adjust the spraying angle of the open nozzle to meet various marking requirements.

[0012] The open nozzle is a figure-eight shaped repeating nozzle. Both the front and rear sides of the open nozzle are equipped with inclined trapezoidal nozzle rods. A regulating valve is located on the inner top of the open nozzle. This regulating valve is linked to the nozzle pressure regulating rod. The open nozzle adjusts the nozzle pressure through the regulating valve and the nozzle pressure regulating rod. The repeated spraying ensures sufficient concentration for the marking spray. Furthermore, the nozzle pressure is manually controlled via the nozzle pressure regulating rod, ensuring stable flow during the spraying process and preventing overpressure or splashing.

[0013] Beneficial effects:

[0014] By using a hybrid automatic spray gun, high-pressure spraying of the line marking machine is achieved, ensuring the integrity of the spray gun and improving the spraying quality. The direct pipeline feeding method also ensures a clean spraying environment and facilitates nozzle pressure adjustment. It can achieve standard spraying effects according to different spraying materials. Furthermore, the all-bolted connection design makes it easy to disassemble, clean, or replace the spray gun in case of problems, thereby greatly increasing the service life of the spray gun and ensuring its quality of use.

[0015] The spray gun mixer enables the simultaneous mixing of paint and air pressure, resulting in highly efficient paint spraying. It also facilitates the assembly of the spray gun and allows it to be installed in the specific positions of this type of marking machine, increasing its adaptability.

[0016] The spray gun is stably extended and installed by connecting the mounting rod, which facilitates the operation and spraying of the marking machine.

[0017] The high-pressure pump on the marking machine is connected to the quick-connect high-pressure air inlet via a conduit, allowing high-pressure gas to be delivered into the interior of the spray gun mixer, thus pressurizing and spraying the paint.

[0018] The high-temperature heated paint is fed into the spray gun mixer through the feed port, which requires a metal feed port to ensure stable feeding and stable installation of the feed pipe, thus achieving efficient and stable nozzle spraying.

[0019] The cleaning cover seals the inside of the spray gun mixer and facilitates subsequent cleaning, ensuring the lifespan of the spray gun.

[0020] The nozzle connection port allows the open nozzle to be threadedly connected to the spray gun mixer, and it can also be used to adjust the spraying angle of the open nozzle to meet various marking requirements.

[0021] The repeated spraying ensures sufficient concentration of the marking coating, and the nozzle pressure is manually controlled by the nozzle pressure adjustment rod to ensure stable flow during the spraying process and prevent overpressure or splattering. Attached Figure Description

[0022] Figure 1 This is a side view of an automatic spray gun structure used in a line marking machine;

[0023] Figure 2 This is a front view diagram of an automatic spray gun structure used in a line marking machine;

[0024] In the diagram: 1. Spray gun mixer, 2. Connecting assembly rod, 3. High-pressure air inlet, 4. Feed inlet, 5. Cleaning cover, 6. Nozzle connection port, 7. Open nozzle, 8. Nozzle pressure adjustment rod. Detailed Implementation

[0025] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0026] 1. Spray gun mixer; 2. Connecting assembly rod; 3. High-pressure air inlet; 4. Material inlet; 5. Cleaning cover; 6. Nozzle connection port; 7. Open nozzle; 8. Nozzle pressure adjusting rod.

[0027] like Figure 1 , 2 As shown;

[0028] An automatic spray gun structure for a line marking machine includes a spray gun mixer 1, a high-pressure air inlet 3, a material inlet 4, and a nozzle assembly. The spray gun mixer 1 has a cleaning cover 5 on its top, and protruding mixing interfaces on both its front and rear sides. A connecting rod 2 is located on the outer side of the spray gun mixer 1, and a nozzle assembly is located at its bottom. A high-pressure air inlet and a material inlet 4 are respectively connected above the mixing interfaces on the front and rear sides. The nozzle assembly includes a nozzle connection port 6, an open nozzle 7, and a nozzle pressure adjusting rod 8. The nozzle connection port 6 is integrally connected to the bottom surface of the spray gun mixer 1, and the open nozzle 7 is threadedly rotatably connected to the bottom of the nozzle connection port 6. The nozzle 7 is a rectangular nozzle with an outward expansion in a figure-eight shape. A nozzle pressure adjusting rod 8 protrudes from the front of the open nozzle 7. The nozzle pressure adjusting rod 8 is rotatably connected to the inner upper part of the open nozzle 7. The spray gun mixer 1 is a rectangular shell. Both the top and bottom of the spray gun mixer 1 have through openings. Fixing bolt holes are horizontally extending through the left and right sides of the spray gun mixer 1. Mixing interfaces protrude from the front and rear sides of the spray gun mixer 1. A cleaning cover 5 is threadedly connected to the through opening on the top surface, and a nozzle connection port 6 is threadedly connected to the through opening on the bottom surface. The outer side of the spray gun mixer 1 extends horizontally longitudinally and is connected to the connecting assembly rod 2 through fixing bolt holes. The mixing interface... The upper surface of the end is provided with a horizontal connecting guide surface. Above the connecting guide surface of the mixing interface, there are threaded connections for a high-pressure air inlet 3 and a feeding port 4. The connecting assembly rod 2 is a rectangular long rod. One end of the connecting assembly rod 2 is fixedly connected to the spray gun mixer 1 by bolts. The other end of the connecting assembly rod 2 is connected to the front end of the marking machine by adjustment. The high-pressure air inlet 3 is a quick-connect air pipe connection port. The bottom of the high-pressure air inlet 3 is connected to the mixing interface at the rear end of the spray gun mixer 1 by threads. The top of the high-pressure air inlet 3 is connected to the pressurized air pipe by a quick-pressurization air pipe port. The feeding port 4 is a metal threaded interface. The inner side of the middle of the feeding port 4 is provided with a vertically guiding guide hole. The outer surface of the feeding port 4 is provided with connecting threads. The bottom of the nozzle is connected to the mixing interface via a connecting thread. The top of the feeding port 4 is connected to the hot melt material pipe via a connecting thread. The cleaning cover 5 is a high-pressure sealed rotating cover. The bottom of the cleaning cover 5 is fixedly and sealed to the top of the spray gun mixer 1 via a thread. A connecting bolt hole is provided at the center of the top of the cleaning cover 5. The nozzle connection port 6 is a hexagonal nut connection port. The top of the nozzle connection port 6 is connected to the interior of the spray gun mixer 1 via a thread. The bottom of the nozzle connection port 6 is fixedly and integrally connected to the open nozzle 7. The open nozzle 7 is a figure-eight shaped repeating nozzle. The front and rear sides of the open nozzle 7 are provided with inclined trapezoidal nozzle rods. The top inner side of the open nozzle 7 is provided with a regulating valve. The regulating valve is linked and rotated in conjunction with the nozzle pressure regulating rod 8.The nozzle pressure is adjusted by rotating the regulating valve and nozzle pressure regulating rod 8 when the nozzle 7 is open.

[0029] Implementation example;

[0030] In use, the spray gun mixer 1 is installed on the marking machine by connecting the assembly rod 2. High-pressure gas is injected into the inside of the spray gun mixer 1 through the high-pressure gas inlet 3, and high-temperature paint is mixed inside the spray gun mixer 1 through the feed inlet 4. After the high-pressure gas and paint are mixed, they are transmitted to the open nozzle 7 through the nozzle connection port 6 for spraying. The spraying pressure is adjusted by the nozzle pressure regulating rod 8 to ensure stable spraying.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic spray gun structure for a line marking machine, the automatic spray gun comprising a spray gun mixer, a high-pressure air inlet, a material inlet, and a nozzle assembly, characterized in that, The spray gun mixer has a cleaning cover on top, and a mixing interface protruding on both the front and rear sides. A connecting rod is provided on the outer side of the spray gun mixer, and a nozzle assembly is provided at the bottom. A high-pressure air port and a feeding port are respectively connected above the mixing interfaces on the front and rear sides. The nozzle assembly includes a nozzle connection port, an open nozzle, and a nozzle pressure adjusting rod. The nozzle connection port is integrally connected to the bottom surface of the spray gun mixer. The bottom of the nozzle connection port is threaded and rotatably connected to the open nozzle. The open nozzle is an outwardly expanding rectangular nozzle with a front and rear figure-eight shape. A nozzle pressure adjusting rod protruding on the front side of the open nozzle is rotatably connected to the inner side of the upper end of the open nozzle.

2. The automatic spray gun structure for a line marking machine according to claim 1, characterized in that, The spray gun mixer is a rectangular shell with openings at the top and bottom. It has horizontally extending bolt holes on both sides and a protruding mixing interface on the front and rear sides. A cleaning cover is threaded onto the top opening, and a nozzle connection port is threaded onto the bottom opening. The outer side of the spray gun mixer extends horizontally and is connected to a connecting rod via bolt holes. A horizontally extending connecting surface is provided on the upper surface of the outer end of the mixing interface, and a high-pressure air inlet and a material inlet are threaded onto the connecting surface of the mixing interface.

3. The automatic spray gun structure for a line marking machine according to claim 1, characterized in that, The connecting assembly rod is a rectangular long bar. One end of the connecting assembly rod is fixedly connected to the spray gun mixer by bolts, and the other end of the connecting assembly rod is adjusted and connected to the front end of the marking machine.

4. The automatic spray gun structure for a line marking machine according to claim 1, characterized in that, The high-pressure gas inlet is a quick-connect gas pipe connector. The bottom of the high-pressure gas inlet is connected to the mixing interface at the rear end of the spray gun mixer via a thread, and the top of the high-pressure gas inlet is connected to the pressurized gas pipe via a quick-pressurization port.

5. The automatic spray gun structure for a line marking machine according to claim 1, characterized in that, The feeding port is a metal threaded interface. The inner side of the middle of the feeding port is provided with a vertically guiding through hole, and the outer surface of the feeding port is provided with a connecting thread. The bottom of the feeding port is connected to the mixing interface through the connecting thread, and the top of the feeding port is connected to the hot melt material pipe through the connecting thread.

6. The automatic spray gun structure for a line marking machine according to claim 1, characterized in that, The cleaning cover is a high-pressure sealed rotating cover. The bottom of the cleaning cover is fixedly and sealed to the top of the spray gun mixer by threads, and a connecting bolt hole is provided at the center of the top of the cleaning cover.

7. The automatic spray gun structure for a line marking machine according to claim 1, characterized in that, The nozzle connection port is a hexagonal nut connection port. The top of the nozzle connection port is connected to the inside of the spray gun mixer by a thread, and the bottom of the nozzle connection port is fixedly connected to the open nozzle.

8. The automatic spray gun structure for a line marking machine according to claim 1, characterized in that, The open nozzle is a repeating nozzle in the shape of an octagon. Both the front and rear sides of the open nozzle are provided with oblique trapezoidal nozzle rods. An adjusting valve is provided on the inner side of the top of the open nozzle. The adjusting valve is rotatably connected to the nozzle pressure adjusting rod. The nozzle pressure of the open nozzle is adjusted by rotating the adjusting valve and the nozzle pressure adjusting rod.

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