Metal pipe inner wall spraying equipment

Abstract

The utility model relates to a kind of metal pipe fittings inner wall spraying equipment, belong to metal pipe fittings inner wall spraying equipment technical field, including mobile main body, the one end of mobile main body is equipped with spraying end, the spraying end includes liquid guide groove cylinder, and the surface of liquid guide groove cylinder is slidably installed with conversion cylinder, the inner wall of conversion cylinder is equipped with three conversion ring grooves, and the surface of liquid guide groove cylinder is equipped with several liquid injection ports, the surface of three conversion ring grooves is fixedly installed with several spray heads, and the opposite sides of the surface of liquid guide groove cylinder are both equipped with guide groove, the inner wall of conversion cylinder between three conversion ring grooves is fixedly installed with several limit guide blocks, the utility model can avoid the problem that traditional removal spray head process needs multiple operations, can uniformly replace the spray head needed to use, greatly reduce the time of replacement, and further guarantee the efficiency of equipment when spraying different specifications pipe fittings.

Description

Technical Field

[0001] This utility model relates to the technical field of metal pipe inner wall spraying equipment, specifically a metal pipe inner wall spraying equipment. Background Technology

[0002] Metal pipe inner wall spraying equipment is a special industrial equipment used to automatically and uniformly coat the inner walls of workpieces such as pipes and cylinders. Its core purpose is to form a continuous, dense coating with specific functions on the inner wall of metal pipes to improve the corrosion resistance and wear resistance of pipes, reduce fluid resistance, prevent scaling, meet hygiene standards such as food and pharmaceutical grade, or achieve specific electrical or insulating properties.

[0003] In the process of using metal pipe inner wall spraying equipment, it is mainly used for spraying metal pipes of a certain specification. If the diameter of the metal pipe to be sprayed changes, it may be necessary to use nozzles with different spray angles or paint flow rates to optimize spraying efficiency and quality. For example, a narrower fan spray is required for a small pipe diameter, while a wider fan spray is required for a large pipe diameter. However, traditional pipe nozzles are usually set in multiple locations, which makes replacement very inconvenient and increases the time required for changing sprayers, thus affecting spraying efficiency.

[0004] To avoid the above problems, we propose a metal pipe inner wall spraying equipment. Utility Model Content

[0005] To achieve the above objectives, this utility model provides the following technical solution: a metal pipe inner wall spraying device, comprising a mobile main body, one end of which is provided with a spraying end head, the spraying end head including a liquid guiding groove cylinder, and a conversion cylinder slidably mounted on the surface of the liquid guiding groove cylinder, the inner wall of the conversion cylinder having three conversion ring grooves, and the surface of the liquid guiding groove cylinder having several spray nozzles, the surfaces of the three conversion ring grooves each having several nozzles fixedly mounted, and the opposite sides of the surface of the liquid guiding groove cylinder having guide grooves, the inner wall of the conversion cylinder being fixedly mounted with several limiting guide blocks between the three conversion ring grooves, and the surface of the conversion cylinder being fixedly mounted with a multi-stage electric telescopic rod, the multi-stage electric telescopic rod in the device driving the conversion cylinder to slide, which can quickly and accurately position different conversion ring grooves and nozzle groups to the working position, ensuring the one-click switching effect of the nozzles, greatly reducing the time for equipment downtime to replace nozzles, and is particularly suitable for batch production lines or maintenance sites that require frequent changes in pipe diameter specifications, improving the flexibility of the equipment.

[0006] Furthermore, the mobile body includes an electric mobile chassis, and a storage tank is fixedly installed on one side of the electric mobile chassis. A support frame is fixedly installed on the side of the storage tank away from the electric mobile chassis, and the front and rear sides of the support frame are rotatably mounted with wheels.

[0007] Furthermore, two connecting vertical pipes are fixedly installed on the lower side of the surface of the storage tank, while a lifting strap is fixedly installed on the upper side of the surface of the storage tank.

[0008] Furthermore, the spraying end is fixedly connected to one end of the storage tank, and the spraying end is located on one side of the center line of the storage tank, while the spray nozzle is located on the inner wall of the corresponding conversion ring groove.

[0009] Furthermore, each of the corresponding limiting guide blocks is slidably connected to the inner wall of the corresponding guide groove, and the limiting guide blocks and the conversion ring groove are staggered.

[0010] Furthermore, the fixed end of the multi-stage electric telescopic rod is embedded and connected to the surface of the storage tank, while scraper rings are fixedly installed at both opposite ends of the conversion cylinder. The scraper rings automatically scrape off the residual paint on the surface of the liquid guide tank each time the nozzle is switched, preventing it from solidifying and accumulating, which could cause the conversion cylinder to jam. This ensures the long-term reliable operation of the moving parts of the equipment. The nozzles in the equipment are connected by threads, so they can be quickly replaced individually when damaged or blocked, without having to replace the entire module, thus reducing maintenance costs and complexity.

[0011] Furthermore, the scraper ring is a hollow frustum-shaped structure made of aluminum alloy, with the small end of the scraper ring located away from the side of the conversion cylinder, and the small end of the scraper ring tightly attached to the surface of the liquid guiding tank cylinder.

[0012] Furthermore, the nozzles are equidistantly arranged on the inner wall of the conversion ring groove, and are arranged in a circular row on the inner wall of the conversion ring groove, while the spray volume of the nozzles increases sequentially from left to right.

[0013] Compared with the prior art, this utility model provides a metal pipe inner wall spraying device, which has the following beneficial effects:

[0014] 1. This equipment avoids the problem of multiple operations required in the traditional process of removing spray heads, and can uniformly replace the spray heads that need to be used, which greatly reduces the replacement time and thus ensures the efficiency of the equipment when spraying pipe fittings of different specifications.

[0015] 2. This equipment utilizes different nozzles installed in the conversion ring groove to be suitable for spraying pipes of different diameters, increasing the applicability of the device. In addition, the nozzles are threaded, which also facilitates later replacement and maintenance. Attached Figure Description

[0016] Figure 1 This is a perspective view of the entire utility model from the front.

[0017] Figure 2 This is a perspective view of the entire utility model from below;

[0018] Figure 3This is a perspective view of the liquid guiding tank of this utility model;

[0019] Figure 4 This is a cross-sectional perspective view of the liquid guiding tank of this utility model;

[0020] Figure 5 for Figure 4 Enlarged structural diagram of section A in the middle;

[0021] Figure 6 This is a perspective view of the converter cylinder of this utility model.

[0022] In the diagram: 1. Mobile main body; 101. Electric mobile chassis; 102. Storage tank; 103. Support frame; 104. Moving wheels; 105. Connecting vertical pipe; 106. Lifting strap; 2. Spraying end; 3. Liquid guiding tank; 4. Conversion cylinder; 5. Conversion ring groove; 6. Spray nozzle; 7. Spray head; 8. Guide groove; 9. Limiting guide block; 10. Multi-stage electric telescopic rod; 11. Scraper ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1 to 6 This embodiment of a metal pipe inner wall spraying device includes a movable body 1, one end of which is provided with a spraying end head 2. The spraying end head 2 includes a liquid guiding tank 3, and a conversion cylinder 4 is slidably installed on the surface of the liquid guiding tank 3. The inner wall of the conversion cylinder 4 is provided with three conversion ring grooves 5, and the surface of the liquid guiding tank 3 is provided with a plurality of spray nozzles 6. A plurality of spray heads 7 are fixedly installed on the surface of each of the three conversion ring grooves 5. The plurality of spray heads 7 are equidistantly arranged on the inner wall of the conversion ring grooves 5 and are arranged in a circular row on the inner wall of the conversion ring grooves 5. The spray volume of the plurality of spray heads 7 increases sequentially from left to right. Different nozzles 7 can be used for spraying pipes of different diameters, increasing the applicability of the device. The nozzles 7 are threaded, which also facilitates replacement and maintenance. The liquid guiding tank cylinder 3 has guide grooves 8 on both opposite sides. The inner wall of the conversion cylinder 4 is fixedly installed with several limiting guide blocks 9 between the three conversion ring grooves 5. The corresponding limiting guide blocks 9 are slidably connected to the inner wall of the corresponding guide groove 8. The limiting guide blocks 9 and the conversion ring grooves 5 are staggered. The staggered arrangement facilitates the sealing effect of the conversion ring grooves 5. The surface of the conversion cylinder 4 is fixedly installed with a multi-stage electric telescopic rod 10.

[0025] The inner wall of the equipment conversion cylinder 4 is provided with lip-shaped sealing rings on both sides of each conversion ring groove 5. When the limiting guide block 9 slides to the designated position and aligns a certain conversion ring groove 5 with the spray nozzle 6, the sealing rings on both sides are tightly attached to the smooth outer wall of the liquid guide tank cylinder 3 without openings, forming a closed chamber to ensure the normal operation of the internal structure of the equipment. By using the nozzles 7 with different spray volumes installed in the conversion ring groove 5, it can be used for spraying pipe fittings of different diameters, increasing the applicability of the device.

[0026] The mobile body 1 includes an electric mobile chassis 101, with a storage tank 102 fixedly mounted on one side of the chassis 101. The fixed end of the multi-stage electric telescopic rod 10 is embedded in the surface of the storage tank 102. Scraper rings 11 are fixedly mounted on both opposite ends of the conversion cylinder 4. The scraper rings 11 are hollow frustoconical structures made of aluminum alloy, with the small end of the scraper ring 11 positioned away from the conversion cylinder 4. The small end of the scraper ring 11 is tightly fitted against the surface of the liquid guiding tank 3, allowing the scraper rings 11 to scrape and clean the surface of the liquid guiding tank 3, ensuring smooth conversion. The normal use function of cylinder 4, while the storage tank 102 is fixedly installed on the side away from the electric mobile chassis 101. The front and rear sides of the support frame 103 are rotatably installed with moving wheels 104. Two connecting vertical pipes 105 are fixedly installed on the lower side of the surface of the storage tank 102, and a lifting strap 106 is fixedly installed on the upper side of the surface of the storage tank 102. The spraying end 2 is fixedly connected to one end of the storage tank 102, and the spraying end 2 is set on one side of the center line of the storage tank 102. The spray nozzle 6 is set on the inner wall of the corresponding conversion ring groove 5.

[0027] The scraper ring 11 of this application can automatically scrape off the residual coating on the surface of the liquid guide tank 3 each time the nozzle 7 is switched, preventing it from solidifying and accumulating, which could cause the conversion cylinder 4 to jam. This ensures the long-term reliable operation of the moving parts of the equipment. The nozzle 7 in the equipment is connected by a thread, so it can be quickly replaced individually when damaged or blocked, without having to replace the entire module, thus reducing maintenance costs and complexity.

[0028] The working principle of the above embodiments is as follows:

[0029] When the equipment is in use, the electric mobile chassis 101 provides the overall power for movement. The electric mobile chassis 101 is a mature existing technology, and this application will not elaborate on the mature existing technology. Before spraying, the paint delivery pipe and gas delivery pipe need to be connected to the connecting vertical pipe 105 under the storage tank 102 to ensure the effect of pressure-type paint supply and ensure basic spraying quality. The pressure-type paint supply method of this equipment can stably and evenly pressurize the paint in the tank to the nozzle 7 by supplying gas into the tank where the paint is stored. This avoids problems such as uneven paint output from the nozzle 7 due to uneven supply caused by the paint's own weight, and ensures consistent coating thickness. For medium and high viscosity paints, it is difficult to supply the paint smoothly by gravity or pump suction alone. Gas pressure can force the paint to flow and prevent the nozzle 7 from clogging. It can be adapted to various types of paints.

[0030] During the spraying process, pressurized gas delivers the paint through the spray nozzle 6 on the liquid guide cylinder 3 to the conversion ring groove 5. The paint in the conversion ring groove 5 is then sprayed out through the corresponding nozzle 7, thus completing the spraying function. When it is necessary to replace the nozzle 7, the movement of each stage of the multi-stage electric telescopic rod 10 pushes the corresponding conversion ring groove 5 to the corresponding position, allowing the spraying on the corresponding conversion ring groove 5 to proceed. Because the spraying specifications on the conversion ring groove 5 are set differently, different specifications of pipe fittings can be used, thereby ensuring the applicability of the equipment. Furthermore, the staggered arrangement of the limit guide blocks 9 during the movement of the device ensures that the nozzle 7 can function normally when each conversion ring groove 5 coincides with the spray nozzle 6. In addition, the multi-stage electric telescopic rod 10 of this application adopts a corrugated pipe sleeve protection method. Since corrugated pipe sleeve protection is a common protection method, this application will not elaborate further. Moreover, the use of corrugated pipe sleeve protection for the multi-stage electric telescopic rod 10 can avoid the paint and other substances from affecting it during the spraying process, extend its service life, and reduce the risk of equipment damage.

[0031] This application uses a multi-stage electric telescopic rod 10 to drive the conversion cylinder 4 to slide, which can quickly and accurately position different conversion ring grooves 5 and nozzle 7 groups to the working position. This ensures the one-button switching effect of nozzle 7, greatly reduces the time for equipment downtime to replace nozzle 7, and is particularly suitable for batch production lines or maintenance sites that require frequent changes in pipe diameter specifications, improving the flexibility of the equipment. The liquid guiding tank 3 of this application is a hollow cylindrical pressure-bearing cavity, and one end or side of it is connected to the discharge port of storage tank 102 through a high-pressure pipeline to ensure the normal liquid discharge effect of liquid guiding tank 3.

[0032] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. Any method that can achieve its beneficial effect can be implemented. In addition, the electrical components in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing disclosed power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.

Claims

1. A metal pipe inner wall spraying device, comprising a moving main body (1), characterized in that: One end of the moving body (1) is provided with a spraying end (2). The spraying end (2) includes a liquid guiding tank (3), and a conversion cylinder (4) is slidably installed on the surface of the liquid guiding tank (3). The inner wall of the conversion cylinder (4) is provided with three conversion ring grooves (5), and the surface of the liquid guiding tank (3) is provided with several spray nozzles (6). Several nozzles (7) are fixedly installed on the surface of the three conversion ring grooves (5), and guide grooves (8) are provided on opposite sides of the surface of the liquid guiding tank (3). Several limiting guide blocks (9) are fixedly installed on the inner wall of the conversion cylinder (4) between the three conversion ring grooves (5), and a multi-stage electric telescopic rod (10) is fixedly installed on the surface of the conversion cylinder (4).

2. The metal pipe inner wall spraying equipment according to claim 1, characterized in that: The mobile body (1) includes an electric mobile chassis (101), and a storage tank (102) is fixedly installed on one side of the electric mobile chassis (101). A support frame (103) is fixedly installed on the side of the storage tank (102) away from the electric mobile chassis (101). The front and rear sides of the support frame (103) are rotatably installed with moving wheels (104).

3. The metal pipe inner wall spraying equipment according to claim 2, characterized in that: Two connecting vertical pipes (105) are fixedly installed on the lower side of the surface of the storage tank (102), while a lifting strap (106) is fixedly installed on the upper side of the surface of the storage tank (102).

4. The metal pipe inner wall spraying equipment according to claim 1, characterized in that: The spraying end (2) is fixedly connected to one end of the storage tank (102), and the spraying end (2) is located on one side of the center line of the storage tank (102). The spray nozzle (6) is located on the inner wall of the corresponding conversion ring groove (5).

5. The metal pipe inner wall spraying equipment according to claim 1, characterized in that: Several corresponding limiting guide blocks (9) are slidably connected to the inner wall of the corresponding guide groove (8), and the limiting guide blocks (9) and the conversion ring groove (5) are staggered.

6. The metal pipe inner wall spraying equipment according to claim 1, characterized in that: The fixed end of the multi-stage electric telescopic rod (10) is embedded and connected to the surface of the storage tank (102), while scraper rings (11) are fixedly installed at both opposite ends of the converter cylinder (4).

7. The metal pipe inner wall spraying equipment according to claim 6, characterized in that: The scraper ring (11) is a hollow truncated cone structure made of aluminum alloy. The small end of the scraper ring (11) is located away from the side of the conversion cylinder (4), and the small end of the scraper ring (11) is tightly attached to the surface of the liquid guiding tank cylinder (3).

8. The metal pipe inner wall spraying equipment according to claim 1, characterized in that: Several nozzles (7) are equidistantly arranged on the inner wall of the conversion ring groove (5) and are arranged in a circular row on the inner wall of the conversion ring groove (5), and the spray volume of several nozzles (7) increases sequentially from left to right.

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