Spraying device for exhaust pipe production
By using a support ring and clamping conveyor assembly in the exhaust pipe production process, combined with servo motor drive, the exhaust pipe can be uniformly sprayed in all directions, solving the problems of low spraying efficiency and unevenness in the existing technology, and improving processing efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING SHIDA JINLUN AUTO PARTS CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-28
AI Technical Summary
Existing exhaust pipe spraying equipment suffers from problems such as low spraying efficiency, high labor intensity, uneven spraying, and blind spots. Furthermore, traditional mechanical spraying requires manual replacement of clamping positions, which affects processing efficiency.
The system employs spray nozzles and clamping and conveying components arranged at equal intervals on the inner annular side of the support ring, combined with a servo motor driving the exhaust pipe to rotate and clamping the inner wall, to achieve all-round spraying without dead angles and avoid the clamping position affecting the spraying.
It achieves uniform spraying of the exhaust pipe in all directions, improves spraying efficiency and quality, simplifies the operation process, is applicable to different pipe diameters, and enhances the versatility of the device.
Smart Images

Figure CN224167778U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of exhaust pipe spraying devices, specifically, to an exhaust pipe production spraying device. Background Technology
[0002] In the production process of exhaust pipes, various functional coatings are usually applied to their surface to improve their corrosion resistance, heat insulation, and aesthetics. Currently, most existing exhaust pipe coating equipment uses manual spraying or simple mechanical spraying methods. Manual spraying suffers from low efficiency and high labor intensity. Furthermore, due to the subjectivity and instability of worker operation, it is difficult to ensure the uniformity of the coating, which can easily lead to inconsistent coating thickness, missed areas, and other issues that affect the quality and performance of the exhaust pipe.
[0003] While simple mechanical spraying devices improve spraying efficiency to some extent, they typically have clamping structures. Once these structures are fixed to one end of the exhaust pipe, that clamped area cannot be sprayed. In this case, workers must remove the exhaust pipe and change the clamping end to continue spraying the previously clamped area. This operation is relatively cumbersome, time-consuming, and affects processing efficiency, causing inconvenience to users. Therefore, we propose an exhaust pipe production spraying device. Utility Model Content
[0004] The purpose of this invention is to provide an exhaust pipe production spraying device to solve the defects mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An exhaust pipe production spraying device includes a support frame. A support ring is provided on the top inner side of the support frame. Multiple spray nozzles arranged in a ring at equal intervals and used for spraying operations are fixedly installed on the inner annular side of the support ring. A horizontal frame is fixedly installed on the rear plate of the support frame. Clamping and conveying assemblies are provided on the left and right side plates of the horizontal frame. The clamping and conveying assembly includes a first cylinder fixedly installed on the end of the horizontal frame. A servo motor for driving the exhaust pipe to rotate for spraying is provided at the end of the telescopic shaft of the first cylinder. A fixed seat is detachably installed on the output shaft of the servo motor. A second cylinder is fixedly installed on each of the four sides of the fixed seat. A clamping plate for clamping operations against the inner wall of the exhaust pipe is fixedly installed on the telescopic shaft of the second cylinder.
[0007] Preferably, a fixed base is fixedly installed at the bottom of both sides of the support frame, and the fixed base is fixedly installed on the external base.
[0008] Preferably, the support ring is located between the left and right side plates of the support frame, and two symmetrical fixing rods are fixedly installed between the outer top surface of the support ring and the top plate of the support frame.
[0009] Preferably, the inlet end of the spray nozzle is fixedly equipped with a delivery pipe, and the other end of the delivery pipe is connected to the spray pump in the external spray storage tank.
[0010] Preferably, the telescopic shaft of the first cylinder is detachably mounted with a rectangular frame, the servo motor is fixedly mounted on the inner side of the rectangular frame, and the output shaft of the servo motor passes through the side plate of the rectangular frame and is rotatably connected to the rectangular frame.
[0011] Preferably, a rectangular plate is fixedly mounted on the telescopic shaft of the first cylinder, and the rectangular frame is detachably mounted on the outer side of the rectangular plate by a plurality of fastening bolts.
[0012] Preferably, a protective cover is fixedly installed on the side plate of the rectangular frame near the second cylinder. The protective cover covers the rectangular frame and the servo motor inside, and the rear side of the protective cover near the first cylinder is connected to the outside.
[0013] Preferably, the output shaft of the servo motor is fixedly mounted on a mounting plate, and the mounting base is detachably connected to the mounting plate by a plurality of fastening bolts.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This utility model features spray nozzles arranged in a ring at equal intervals on the inner side of a support ring. These nozzles, along with a clamping and conveying assembly, drive the exhaust pipe to rotate. The two clamping and conveying assemblies are positioned against the inner wall of the exhaust pipe for clamping, ensuring that the surface coating is not affected. This achieves all-around, blind-spot-free spraying of the exhaust pipe, avoiding the blind spots caused by traditional clamping structures. It also eliminates the need for manual replacement of the exhaust pipe clamping parts for secondary spraying, effectively simplifying the operation process, saving processing time, and significantly improving processing efficiency.
[0016] 2. This utility model sets four second cylinders and clamping plates on the fixed seat on the output shaft of the servo motor, so that they can be clamped against the inner wall of the exhaust pipe, thus achieving stable fixation of the exhaust pipe without affecting the spraying of the outer surface of the exhaust pipe. This ensures the stability of the exhaust pipe position during the spraying process, guarantees the uniformity of the coating and the quality of the spraying, and is applicable to exhaust pipes of different diameters, improving the versatility of the device. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a partial structural schematic diagram of the present invention;
[0019] Figure 3 This is a schematic diagram of the structure of the clamping and conveying assembly of this utility model;
[0020] Figure 4 This is a schematic diagram illustrating the use of this utility model;
[0021] The meanings of the labels in the diagram are as follows:
[0022] 1. Support frame; 10. Fixed base; 11. Support ring; 12. Fixing rod; 13. Spray nozzle; 14. Delivery pipe;
[0023] 2. Horizontal frame;
[0024] 3. Clamping and conveying assembly; 30. First cylinder; 31. Rectangular plate; 32. Rectangular frame; 33. Protective cover; 34. Servo motor; 35. Fixed plate; 36. Fixed base; 37. Second cylinder; 371. Clamping plate. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0026] Please see Figures 1-4 This utility model provides a technical solution: an exhaust pipe production spraying device, including a support frame 1. Fixed bases 10 are fixedly installed at the bottom of the left and right side plates of the support frame 1. The fixed bases 10 are fixedly installed on an external base, so that the support frame 1 can be stably installed on the external base, providing a stable support foundation for the entire spraying device. This ensures that the device will not be displaced or shaken due to vibration or external force during operation, thereby ensuring the stability and accuracy of the spraying operation and avoiding spraying quality problems caused by device instability.
[0027] like Figure 1As shown, a support ring 11 is provided on the top inner side of the support frame 1. The support ring 11 is located between the left and right side plates of the support frame 1. Two symmetrical fixing rods 12 are fixedly installed between the outer top surface of the support ring 11 and the top plate of the support frame 1. Multiple spray nozzles 13 arranged in a ring at equal intervals and used for spraying operations are fixedly installed on the inner annular side of the support ring 11. The support ring 11 provides a reliable mounting carrier for the spray nozzles 13. The fixing rods 12 enhance the structural strength and stability of the support ring 11, ensuring that the spray nozzles 13 maintain a fixed position during the spraying process and do not shift, thereby ensuring the uniformity and consistency of the spraying on the exhaust pipe.
[0028] A delivery pipe 14 is fixedly installed at the liquid inlet end of the spray nozzle 13. The other end of the delivery pipe 14 is connected to the spray pump in the external spray storage tank, so that the paint can be stably delivered to the spray nozzle 13 through the delivery pipe 14 by the spray pump. The spray nozzle 13 then sprays the outer surface of the exhaust pipe in all directions. This layout can achieve efficient and uniform spraying of the exhaust pipe surface, avoiding the blind spots and unevenness problems existing in traditional spraying methods, and greatly improving the spraying quality and efficiency of the exhaust pipe.
[0029] In this embodiment, a horizontal frame 2 is fixedly installed on the rear plate of the support frame 1. Clamping and conveying assemblies 3 are provided on both the left and right side plates of the horizontal frame 2. Each clamping and conveying assembly 3 includes a first cylinder 30 fixedly installed on the end of the horizontal frame 2. A servo motor 34 for driving the exhaust pipe to rotate and perform spraying is provided at the end of the telescopic shaft of the first cylinder 30. A fixed base 36 is detachably installed on the output shaft of the servo motor 34. Second cylinders 37 are fixedly installed on the four sides of the fixed base 36. A clamping plate 371 for clamping against the inner wall of the exhaust pipe is fixedly installed on the telescopic shaft of the second cylinder 37. The first cylinder 30 drives the servo motor 34 and its connecting components to telescopically move, thereby achieving more comprehensive spraying of all parts of the exhaust pipe. Furthermore, the second cylinder 37 drives the clamping plate 371 to clamp the inner wall of the exhaust pipe, and the servo motor 34 drives the exhaust pipe to rotate, resulting in more comprehensive spraying.
[0030] like Figure 3 As shown, a rectangular frame 32 is detachably mounted on the telescopic shaft of the first cylinder 30. A servo motor 34 is fixedly mounted on the inner side of the rectangular frame 32. The output shaft of the servo motor 34 passes through the side plate of the rectangular frame 32 and is rotatably connected to it, making the installation and removal of the servo motor 34 more convenient. This design facilitates the maintenance, repair, or replacement of the servo motor 34. Furthermore, when it is necessary to adjust the device structure or replace it with a different model of servo motor 34, the operation can be completed quickly, reducing equipment downtime and improving production efficiency.
[0031] like Figure 3 As shown, a rectangular plate 31 is fixedly installed on the telescopic shaft of the first cylinder 30, and a rectangular frame 32 is detachably installed on the outer side of the rectangular plate 31 by multiple fastening bolts, which facilitates the fixing, installation and disassembly of the rectangular frame 32.
[0032] like Figure 3 As shown, a protective cover 33 is fixedly installed on the side plate of the rectangular frame 32 near the second cylinder 37. The protective cover 33 encloses the rectangular frame 32 and the servo motor 34 inside, and the side of the protective cover 33 near the first cylinder 30 is connected to the outside. The protective cover 33 effectively protects the servo motor 34 and related components from contamination by paint and other impurities during the spraying process. This not only extends the service life of the servo motor 34 and other components, but also reduces the risk of equipment failure caused by impurities entering, ensuring the stable operation and reliable performance of the device.
[0033] like Figure 3 As shown, the output shaft of the servo motor 34 is fixedly mounted on a mounting plate 35, and the mounting base 36 is detachably connected to the mounting plate 35 by multiple fastening bolts, which facilitates the fixing, installation and disassembly operations.
[0034] Finally, it should be noted that the components involved in this utility model, such as the first cylinder 30, the servo motor 34, and the second cylinder 37, are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the adapted controller and power supply, are connected by wires. The specific connection methods should refer to the working principle in this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.
[0035] When using the exhaust pipe production spraying device of this utility model, the exhaust pipe to be sprayed is placed between two clamping and conveying components 3, so that the exhaust pipe passes through the support ring 11; then the first cylinder 30 extends, driving the servo motor 34, the fixed seat 36 and other components to approach the end of the exhaust pipe, so that the exhaust pipe is sleeved on the outside of multiple clamping plates 371. Then the second cylinder 37 drives the clamping plates 371 to extend and clamp and fix them from the inner wall of the exhaust pipe.
[0036] After the fixation is completed, the servo motor 34 starts and drives the exhaust pipe to start rotating. At this time, the paint is delivered to the spray nozzle 13 on the inner annular side of the support ring 11 through the external spray pump and the delivery pipe 14. Multiple spray nozzles 13 arranged in a ring at equal intervals spray the rotating exhaust pipe in all directions. During the spraying process, the two first cylinders 30 can also extend and retract as needed to adjust the position of the exhaust pipe so that all parts can be fully sprayed.
[0037] After the spraying is completed, the second cylinder 37 retracts, causing the clamping plate 371 to loosen, and the first cylinder 30 retracts, moving the sprayed exhaust pipe out from the inside of the support ring 11.
[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An exhaust pipe production spraying device, comprising a support frame (1), characterized in that: The support frame (1) has a support ring (11) on its inner top. Multiple spray nozzles (13) arranged in a ring and at equal intervals for spraying operations are fixedly installed on the inner annular side of the support ring (11). A horizontal frame (2) is fixedly installed on the rear plate of the support frame (1). Clamping and conveying assemblies (3) are provided on both the left and right plates of the horizontal frame (2). The clamping and conveying assembly (3) includes a first cylinder (30) fixedly installed on the end of the horizontal frame (2). A servo motor (34) for driving the exhaust pipe to rotate for spraying is provided at the end of the telescopic shaft of the first cylinder (30). A fixed seat (36) is detachably installed on the output shaft of the servo motor (34). A second cylinder (37) is fixedly installed on each of the four sides of the fixed seat (36). A clamping plate (371) for clamping operations against the inner wall of the exhaust pipe is fixedly installed on the telescopic shaft of the second cylinder (37).
2. The exhaust pipe production spraying apparatus according to claim 1, characterized in that: Fixed bases (10) are fixedly installed at the bottom of the left and right side plates of the support frame (1), and the fixed bases (10) are fixedly installed on the external base.
3. The exhaust pipe production spraying apparatus according to claim 1, characterized in that: The support ring (11) is located between the left and right side plates of the support frame (1), and two symmetrical fixing rods (12) are fixedly installed between the outer top surface of the support ring (11) and the top plate of the support frame (1).
4. The exhaust pipe production spraying apparatus according to claim 1, characterized in that: The inlet end of the spray nozzle (13) is fixedly equipped with a delivery pipe (14), and the other end of the delivery pipe (14) is connected to the spray pump in the external spray storage tank.
5. The exhaust pipe production spraying apparatus according to claim 1, characterized in that: The telescopic shaft of the first cylinder (30) is detachably mounted with a rectangular frame (32). The servo motor (34) is fixedly mounted on the inner side of the rectangular frame (32). The output shaft of the servo motor (34) passes through the side plate of the rectangular frame (32) and is rotatably connected to the rectangular frame (32).
6. The exhaust pipe production spraying apparatus according to claim 5, characterized in that: A rectangular plate (31) is fixedly installed on the telescopic shaft of the first cylinder (30), and the rectangular frame (32) is detachably installed on the outer side of the rectangular plate (31) by a plurality of fastening bolts.
7. The exhaust pipe production spraying apparatus according to claim 6, characterized in that: A protective cover (33) is fixedly installed on the side plate of the rectangular frame (32) near the second cylinder (37). The protective cover (33) covers the rectangular frame (32) and the servo motor (34) inside. The side of the protective cover (33) near the first cylinder (30) is connected to the outside.
8. The exhaust pipe production spraying apparatus according to claim 1, characterized in that: The output shaft of the servo motor (34) is fixedly mounted on a mounting plate (35), and the mounting base (36) is detachably connected to the mounting plate (35) by a plurality of fastening bolts.