A continuous spraying device for stainless steel pipes
By introducing a hydraulic cylinder and a toothed ring meshing cleaning ring design into the stainless steel pipe spraying device, the problem of paint solidification and clogging in the spray nozzle is solved, realizing the continuity of the spraying process and convenient replacement of the cleaning ring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU YUNTAI TECH CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-26
AI Technical Summary
In existing stainless steel pipe spraying equipment, the coating solidifies after the spraying is completed, causing blockages that are difficult to clean.
A continuous stainless steel pipe spraying device was designed, comprising a hydraulic cylinder, clamping block, spraying mechanism, cleaning mechanism, and collection mechanism. The device utilizes a toothed ring to drive a cleaning ring to clean the paint on the nozzle surface, and collects the cleaned paint through the collection mechanism.
It enables effective cleaning of the paint on the nozzle surface, avoids clogging, and facilitates the replacement of the cleaning ring and the collection of paint.
Smart Images

Figure CN224405496U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spraying technology, specifically to a continuous spraying device for stainless steel pipes. Background Technology
[0002] Stainless steel pipes are widely used in petrochemical, marine engineering, food and pharmaceutical and nuclear power fields due to their excellent corrosion resistance, mechanical strength and high temperature stability; however, in highly corrosive media, high wear conditions or extreme temperature difference environments, the pipe surface still needs to be further protected by functional coatings.
[0003] A search of Chinese patent CN216094407U reveals a red paint spraying device for fire-fighting pipelines, comprising: a first support frame with a fixed plate connected thereon; a drive assembly on the first support frame; and a paint storage assembly on the first support frame. This utility model achieves the desired effect of spraying paint onto fire-fighting pipelines by cooperating with the drive assembly, the paint storage assembly, and the spraying assembly.
[0004] Based on the above search and existing technology, it was found that the above patent has certain defects. After the spraying is completed in the spraying device, the paint on the surface of the spray head gradually solidifies due to the cessation of activity, causing blockage of the spray head and making it difficult to clean the residual paint. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a continuous spraying device for stainless steel pipes.
[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:
[0007] An embodiment of this utility model provides a continuous spraying device for stainless steel pipes, including a frame, on which a pair of hydraulic cylinders are symmetrically arranged. Each hydraulic cylinder has a clamping block fixedly installed on its telescopic end, and the two clamping blocks together clamp the pipe body. A spraying mechanism is provided on the frame, and a cleaning mechanism is provided on each hydraulic cylinder. The cleaning mechanism includes a first toothed ring provided on the spraying mechanism, a support assembly provided on the hydraulic cylinder, a second toothed ring adapted to the first toothed ring provided on the support assembly, a connecting assembly provided on the second toothed ring, and a cleaning ring provided on the connecting assembly.
[0008] The frame is equipped with a collection mechanism, which includes two brackets fixedly mounted on the two hydraulic cylinders respectively. Each bracket has a guide frame fixedly mounted at its end. Two second guide rails are symmetrically fixedly mounted on the frame. A second spring is connected to the inner wall of each second guide rail. The end of the second spring is connected to a slide rod that is slidably connected to the second guide rail. A third spring is connected to the inner wall of the slide rod. The end of the third spring is connected to a telescopic rod that is slidably connected to the slide rod. A side frame is fixedly mounted on the telescopic rod. A side block that is slidably connected to the guide frame is fixedly mounted on the side frame. A sleeve assembly is provided on the side frame. A collection shell is provided on the sleeve assembly.
[0009] Furthermore, the spraying mechanism includes a drive motor mounted on the frame, and a lead screw fixedly mounted on the output end of the drive motor is fixed to the first gear ring.
[0010] Furthermore, the spraying mechanism also includes a threaded bracket threaded onto the lead screw, an interface fixedly mounted on the threaded bracket, and an annular spray head fixedly mounted on the interface.
[0011] Furthermore, a slider is fixedly installed on the threaded frame, and a first guide rail that is slidably connected to the slider is fixedly installed on the frame.
[0012] Furthermore, the support assembly includes an annular shell fixedly mounted on the hydraulic cylinder, and a support ring fixed to the second toothed ring is rotatably mounted on the annular shell.
[0013] Furthermore, the connecting assembly includes a pair of fixed shells symmetrically fixedly mounted on the second toothed ring. Each fixed shell has a first spring connected to its inner wall. The end of the first spring is connected to a locking plate that is slidably connected to the fixed shell. A locking shell that is fixed to the cleaning ring is engaged on the locking plate.
[0014] Furthermore, the sleeve assembly includes a support block fixedly installed on the side frame, a side sleeve fixed to the collection shell is sleeved on the support block, and a touch plate is fixedly installed on the annular nozzle.
[0015] The above-described solution of this utility model has at least the following beneficial effects:
[0016] 1. In this utility model, by controlling the operation of the drive motor, the cleaning ring is driven to rotate through the meshing action of the first toothed ring and the second toothed ring. When the annular nozzle moves to contact the cleaning ring, the rotating cleaning ring can clean the paint residue on the surface of the annular nozzle, thereby preventing the paint from solidifying and clogging the annular nozzle.
[0017] 2. In this utility model, by pulling the cleaning ring, the cleaning ring moves the retaining ring, causing the retaining ring to press against the retaining plate, and the retaining plate separates from the retaining ring under the elastic support of the first spring, thereby facilitating the disassembly of the cleaning ring and the cleaning and replacement of the cleaning ring.
[0018] 3. In this utility model, the annular nozzle can drive the touch plate to move. When the touch plate presses the side frame, the side frame drives the side block to move along the inner side of the guide frame. At the same time, the side frame drives the collection shell to move to the bottom of the cleaning ring through the support block and the side sleeve. When the cleaning ring cleans the annular nozzle, the cleaned paint can fall into the inner side of the collection shell, thus facilitating the collection of paint. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of a continuous spraying device for stainless steel pipes according to the present invention.
[0020] Figure 2 This is an exploded structural diagram of the frame of a continuous spraying device for stainless steel pipes according to the present invention.
[0021] Figure 3 This is a three-dimensional structural diagram of the annular nozzle of a continuous spraying device for stainless steel pipes according to the present invention.
[0022] Figure 4 This is a schematic diagram of the exploded structure of the support ring of a continuous spraying device for stainless steel pipes according to the present invention.
[0023] Figure 5 This is a schematic diagram of the clamping shell structure of a continuous spraying device for stainless steel pipes according to the present invention.
[0024] Figure 6 This is a schematic diagram of the exploded slide bar structure of a continuous spraying device for stainless steel pipes according to this utility model.
[0025] Explanation of reference numerals in the attached figures:
[0026] 1. Frame; 2. Hydraulic cylinder; 3. Clamping block; 4. Pipe body; 5. Drive motor; 6. Lead screw; 7. Threaded bracket; 8. Interface; 9. Annular nozzle; 10. Slider; 11. First guide rail; 12. First toothed ring; 13. Ring shell; 14. Support ring; 15. Second toothed ring; 16. Fixing shell; 17. First spring; 18. Clamping plate; 19. Clamping case; 20. Cleaning ring; 21. Bracket; 22. Guide frame; 23. Second guide rail; 24. Second spring; 25. Slide rod; 26. Third spring; 27. Telescopic rod; 28. Side frame; 29. Side block; 30. Support block; 31. Side sleeve; 32. Collection shell; 33. Touch plate. Detailed Implementation
[0027] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
[0028] like Figures 1 to 6 As shown, an embodiment of this utility model provides a continuous spraying device for stainless steel pipes, including a frame 1. A pair of hydraulic cylinders 2 are symmetrically fixed on the frame 1. Each hydraulic cylinder 2 has a clamping block 3 fixedly installed on its telescopic end. The two clamping blocks 3 together clamp the pipe body 4. A spraying mechanism is provided on the frame 1. The spraying mechanism includes a drive motor 5 fixedly installed on the frame 1. A lead screw 6 fixedly installed on the output end of the drive motor 5 is fixedly installed with the first toothed ring 12. The spraying mechanism also includes a threaded frame 7 threadedly installed on the lead screw 6. An interface 8 is fixedly installed on the threaded frame 7. An annular nozzle 9 is fixedly installed on the interface 8. A slider 10 is fixedly installed on the threaded frame 7. A first guide rail 11 slidably connected to the slider 10 is fixedly installed on the frame 1.
[0029] In this embodiment of the utility model, the interface 8 is connected to an external coating equipment. The operator moves the tube 4 between two clamping blocks 3 using a handling device, controls the extension end of the hydraulic cylinder 2 to extend, and the two clamping blocks 3 cooperate to clamp the tube 4. The coating equipment is controlled to deliver the coating to the inside of the annular nozzle 9, so that the coating is sprayed out from the annular nozzle 9. At the same time, the drive motor 5 is controlled to run, so that the output end of the drive motor 5 rotates to drive the lead screw 6 to rotate. The lead screw 6 uses the thread action to drive the annular nozzle 9 to move along the surface of the tube 4 through the threaded frame 7 and the interface 8, thereby performing continuous spraying work on the tube 4.
[0030] Figures 1 to 6 As shown, each hydraulic cylinder 2 is equipped with a cleaning mechanism, which includes a first toothed ring 12 mounted on the spraying mechanism. A support assembly is mounted on the hydraulic cylinder 2, and a second toothed ring 15 adapted to the first toothed ring 12 is mounted on the support assembly. A connecting assembly is mounted on the second toothed ring 15, and a cleaning ring 20 is mounted on the connecting assembly. The support assembly includes an annular shell 13 fixedly mounted on the hydraulic cylinder 2, and a support ring 14 fixed to the second toothed ring 15 is rotatably mounted on the annular shell 13. The connecting assembly includes a pair of fixed shells 16 symmetrically fixedly mounted on the second toothed ring 15. A first spring 17 is connected to the inner wall of each fixed shell 16, and a clamping plate 18 slidably connected to the fixed shell 16 is connected to the end of the first spring 17. A clamping shell 19 fixed to the cleaning ring 20 is clamped on the clamping plate 18.
[0031] In this embodiment of the utility model, the operator controls the drive motor 5 to rotate, which in turn causes the lead screw 6 to rotate and drive the first toothed ring 12 to rotate. The first toothed ring 12 and the second toothed ring 15, under meshing action, drive the cleaning ring 20 to rotate through the fixed shell 16, the first spring 17, the clamping plate 18 and the clamping shell 19. When the annular nozzle 9 moves to contact the cleaning ring 20, the rotating cleaning ring 20 can clean the paint residue on the surface of the annular nozzle 9, thereby preventing the paint from solidifying and clogging the annular nozzle 9.
[0032] Workers pull the cleaning ring 20, causing the cleaning ring 20 to move the retaining housing 19, which in turn presses the retaining plate 18. Under the elastic support of the first spring 17, the retaining plate 18 separates from the retaining housing 19, thus facilitating the disassembly of the cleaning ring 20 and making it easier to clean and replace it. The cleaned or replaced cleaning ring 20 is then installed by the engagement of the retaining housing 19 and the retaining plate 18.
[0033] Figures 1 to 6 As shown, a collection mechanism is provided on the frame 1. The collection mechanism includes two brackets 21 fixedly installed on two hydraulic cylinders 2 respectively. A guide frame 22 is fixedly installed at the end of each bracket 21. Two second guide rails 23 are symmetrically fixedly installed on the frame 1. A second spring 24 is connected to the inner wall of each second guide rail 23. A slide rod 25 that is slidably connected to the second guide rail 23 is connected to the end of the second spring 24. A third spring 26 is connected to the inner wall of the slide rod 25. A telescopic rod 27 that is slidably connected to the slide rod 25 is connected to the end of the third spring 26. A side frame 28 is fixedly installed on the telescopic rod 27. A side block 29 that is slidably connected to the guide frame 22 is fixedly installed on the side frame 28. A sleeve assembly is provided on the side frame 28. A collection shell 32 is provided on the sleeve assembly. The sleeve assembly includes a support block 30 fixedly installed on the side frame 28. A side sleeve 31 that is fixed to the collection shell 32 is sleeved on the support block 30. A touch plate 33 is fixedly installed on the annular nozzle 9.
[0034] In this embodiment of the utility model, the annular nozzle 9 can drive the touch plate 33 to move. When the touch plate 33 presses the side frame 28, the side frame 28 drives the side block 29 to move along the inner side of the guide frame 22, so that the side block 29 drives the telescopic rod 27 to move out of the inner side of the slide rod 25 through the side frame 28. The slide rod 25 moves along the inner side of the second guide rail 23. At the same time, the side frame 28 drives the collection shell 32 to move to the bottom of the cleaning ring 20 through the support block 30 and the side sleeve 31. When the cleaning ring 20 cleans the annular nozzle 9, the cleaned paint can fall into the inner side of the collection shell 32, thereby facilitating the collection of paint.
[0035] When the touch plate 33 separates from the side frame 28, the second spring 24 can use its own elastic force to drive the collection shell 32 to reset and move through the telescopic rod 27, the side frame 28, the support block 30 and the side sleeve 31. The third spring 26 can use its own elastic force to drive the slide rod 25 to reset and move. By moving the collection shell 32, the staff can move the support block 30 out of the inside of the side sleeve 31, which makes it easier to disassemble the collection shell 32, clean the paint on the inside of the collection shell 32, and fix the cleaned collection shell 32 by fitting the support block 30 and the side sleeve 31 together.
[0036] Working principle: The operator moves the pipe body 4 between the two clamping blocks 3 using the handling equipment, controls the extension end of the hydraulic cylinder 2 to extend, so that the two clamping blocks 3 cooperate to clamp the pipe body 4. The coating equipment is controlled to deliver the coating to the inside of the annular nozzle 9, so that the coating is sprayed out from the annular nozzle 9. At the same time, the drive motor 5 is controlled to run, so that the output end of the drive motor 5 rotates to drive the lead screw 6 to rotate. The lead screw 6 uses the thread action to drive the annular nozzle 9 to move along the surface of the pipe body 4 through the threaded frame 7 and the interface 8, thereby performing continuous spraying work on the pipe body 4.
[0037] When the annular nozzle 9 moves to contact the cleaning ring 20, the rotating cleaning ring 20 can clean the paint residue on the surface of the annular nozzle 9. When the touch plate 33 squeezes the side frame 28, the side frame 28 drives the side block 29 to move along the inside of the guide frame 22. At the same time, the side frame 28 drives the collection shell 32 to move to the bottom of the cleaning ring 20 through the support block 30 and the side sleeve 31. When the cleaning ring 20 cleans the annular nozzle 9, the cleaned paint can fall into the inside of the collection shell 32.
[0038] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. A continuous spraying device for stainless steel pipes, comprising a frame (1), a pair of hydraulic cylinders (2) symmetrically arranged on the frame (1), a clamping block (3) fixedly installed on the telescopic end of each hydraulic cylinder (2), and a pipe body (4) clamped between the two clamping blocks (3), and a spraying mechanism arranged on the frame (1), characterized in that: Each of the hydraulic cylinders (2) is provided with a cleaning mechanism, the cleaning mechanism including a first toothed ring (12) provided on the spraying mechanism, a support assembly provided on the hydraulic cylinder (2), a second toothed ring (15) adapted to the first toothed ring (12) provided on the support assembly, a connecting assembly provided on the second toothed ring (15), and a cleaning ring (20) provided on the connecting assembly; The frame (1) is provided with a collection mechanism, which includes two brackets (21) fixedly installed on two hydraulic cylinders (2) respectively. Each bracket (21) has a guide frame (22) fixedly installed at its end. Two second guide rails (23) are symmetrically fixedly installed on the frame (1). Each second guide rail (23) has a second spring (24) connected to its inner wall. The end of the second spring (24) is connected to a slide rod (25) that is slidably connected to the second guide rail (23). The inner wall of the slide rod (25) is connected to a third spring (26). The end of the third spring (26) is connected to a telescopic rod (27) that is slidably connected to the slide rod (25). A side frame (28) is fixedly installed on the telescopic rod (27). A side block (29) that is slidably connected to the guide frame (22) is fixedly installed on the side frame (28). A sleeve assembly is provided on the side frame (28). A collection shell (32) is provided on the sleeve assembly.
2. The continuous spraying device for stainless steel pipes according to claim 1, characterized in that: The spraying mechanism includes a drive motor (5) mounted on the frame (1), and a lead screw (6) fixed to the first toothed ring (12) is fixedly mounted on the output end of the drive motor (5).
3. The continuous spraying device for stainless steel pipes according to claim 2, characterized in that: The spraying mechanism also includes a threaded bracket (7) threaded onto the lead screw (6), an interface (8) fixedly mounted on the threaded bracket (7), and an annular nozzle (9) fixedly mounted on the interface (8).
4. The continuous spraying device for stainless steel pipes according to claim 3, characterized in that: A slider (10) is fixedly installed on the threaded frame (7), and a first guide rail (11) that is slidably connected to the slider (10) is fixedly installed on the frame (1).
5. The continuous spraying device for stainless steel pipes according to claim 1, characterized in that: The support assembly includes an annular shell (13) fixedly mounted on the hydraulic cylinder (2), and a support ring (14) fixed to the second toothed ring (15) is rotatably mounted on the annular shell (13).
6. The continuous spraying device for stainless steel pipes according to claim 1, characterized in that: The connecting assembly includes a pair of fixed shells (16) symmetrically fixedly mounted on the second toothed ring (15). Each fixed shell (16) has a first spring (17) connected to its inner wall. The end of the first spring (17) is connected to a locking plate (18) that is slidably connected to the fixed shell (16). The locking plate (18) has a locking shell (19) that is fixed to the cleaning ring (20).
7. A continuous spraying device for stainless steel pipes according to claim 3, characterized in that: The sleeve assembly includes a support block (30) fixedly installed on the side frame (28), a side sleeve (31) fixed to the collection shell (32) is sleeved on the support block (30), and a touch plate (33) is fixedly installed on the annular nozzle (9).