Pipeline outer side ring mark spraying device

Abstract

The invention mainly relates to the field of pipeline machining and spraying, and provides a pipeline outer side ring mark spraying device which structurally comprises a platform, and a feeding station, a spraying station and a discharging station are arranged on one side of the platform from back to front; the top and the bottom of the right end of the adjusting frame are each provided with an assembling base in a welded mode, the four corners of the top of each assembling base are each fixedly provided with a limiting spring, and the outer sides, located on the upper portion and the lower portion of the adjusting frame, of the limiting springs are fixedly connected with the top and the bottom of the front end of the mounting frame correspondingly. The gantry linear module is configured for the pipe body spraying assembly, the flexible assembly assembly and the three-axis linear module are configured for the annular surface spraying assembly, spraying treatment can be conducted on the pipe body and the annular surface of the pipeline at the first spraying station and the second spraying station, and the conditions that the efficiency is low and marking positions are disordered due to manual spraying are avoided.

Description

Technical Field

[0001] The present invention mainly relates to the field of pipeline processing and spraying, and particularly relates to a device for spraying annular marks on the outer side of a pipeline. Background Art

[0002] In the production of pipeline products, it is necessary to perform spraying and marking operations on the pipe body and annular surface of the pipeline according to the production plan and regulations. Information such as the information of pipeline manufacturers with different pipe diameters, product names, product specifications, and product quality marks are respectively sprayed on the pipe body and annular surface of the pipeline. In past spraying and marking operations, manual brushing has the problem that the marking positions are chaotic, resulting in a chaotic appearance of the product and being unfavorable for sales.

[0003] The inventor proposes a device for spraying annular marks on the outer side of a pipeline. By setting a first spraying station and a second spraying station, and at the same time according to the need for spraying marks on the outside of the pipeline, the pipeline in the first spraying station is designed to be rotatable, and the second spraying station is not designed to rotate. An annular surface spraying assembly is arranged outside the first spraying station to spray the annular surface of the pipeline, and pipe body spraying assemblies are respectively arranged on the first spraying station and the second spraying station to complete the spraying operation of the device on the pipeline, avoiding the situation of low efficiency and chaotic marking positions caused by manual brushing. Summary of the Invention

[0004] 1. Problems to be Solved by the Invention: The present invention provides a device for spraying annular marks on the outer side of a pipeline to solve the technical problem of low operation efficiency in the existing manual brushing of pipelines mentioned in the above background art.

[0005] 2. Technical Solutions: To achieve the above object, the technical solution provided by the present invention is: a device for spraying annular marks on the outer side of a pipeline, including the following structures: A base platform, on one side of which from the back to the front are provided a feeding station, a spraying station, and a discharging station.

[0006] An adjusting frame, at the top and bottom of the right end of which are welded with assembly seats. At the four corners of the top of each assembly seat are fixedly provided limiting springs. The outer sides of the limiting springs at the upper and lower positions of the adjusting frame are respectively fixedly connected to the top and bottom of the front end of an installation frame. The front and rear sides of the left end of the adjusting frame are respectively movably connected to the left ends of two extension rods. Adjusting rods are respectively arranged at the top and bottom of the adjusting frame. The rear ends of the two adjusting rods are respectively movably connected to the middle parts of the two extension rods. An extension frame is fixedly provided on the front side of the adjusting frame, and an annular surface spraying assembly is fixedly provided on the rear side of the extension frame.

[0007] Further, a toothed rail is fixedly provided in the middle of the platform. The left and right sides of the top of the platform are respectively movably connected to the bottoms of the left and right ends of the pipe transport trolley through wheels. A first motor is fixedly provided in the middle of the rear end of the pipe transport trolley, and a spur gear is fixedly provided at the bottom output end of the first motor. The left side of the spur gear meshes with the right side of the toothed rail.

[0008] Further, deflecting frames and connecting frames are movably connected to both the front and rear ends of the pipe transport trolley. The bottom of the deflecting frame is movably connected to the bottom of the connecting frame through a connecting rod. A lifting cylinder is movably connected to the bottom of the pipe transport trolley, and the output end of the lifting cylinder is movably connected to the bottom of the deflecting frame. A bracket is provided on the top of the pipe transport trolley. The front and rear sides of the bottom of the bracket are respectively movably connected to the top of the deflecting frame and the top of the connecting frame. A plurality of support seats for fitting the pipes are fixedly provided on the top of the bracket.

[0009] Further, it also includes two mounting seats which are symmetrically arranged about the middle of the platform left and right. The rear end and the front end of the mounting seat are respectively divided into a first spraying station and a second spraying station.

[0010] A second motor is fixedly provided on the outside of the mounting seat. Four pairs of alignment wheels are movably connected in pairs on the top of the mounting seat. The output end of the second motor is fixedly connected to the middle of the alignment wheel at the first spraying station.

[0011] An auxiliary frame is fixedly provided on the left side of the mounting seat. A third motor is fixedly provided on the rear side of the auxiliary frame. The front and rear sides of the top of the auxiliary frame are respectively movably connected to the front and rear ends of the axial adjustment wheel. The front side output end of the third motor is fixedly connected to the rear side of the axial adjustment wheel.

[0012] Further, a feeding guide rail and a discharging guide rail are respectively provided on the rear side and the front side of the mounting seat.

[0013] Further, gantry linear modules are provided on both the front and rear sides above the mounting seat. The two gantry linear modules are respectively located at the first spraying station and the second spraying station. A machine frame is fixedly provided at the mobile end of the gantry linear module. A lifting cylinder is fixedly provided in the middle of the machine frame. The bottom output end of the lifting cylinder is fixedly provided with a sliding frame. The left and right sides of the sliding frame are respectively slidably connected to the left and right ends of the machine frame. A pipe body spraying assembly is fixedly provided at the bottom of the sliding frame.

[0014] Further, a fourth motor is fixedly provided at the right end of the adjusting frame. A lead screw is fixedly provided at the left side output end of the fourth motor. The left and right ends of the lead screw are respectively movably connected to the left and right ends of the adjusting frame. A sliding seat is threadedly connected to the outside of the lead screw. The outside of the sliding seat is slidably connected to the middle of the adjusting frame. The top and the bottom of the sliding seat are respectively movably connected to the right ends of two adjusting rods.

[0015] Further, a contact wheel that contacts the inner wall of the pipeline is movably connected to the left end of the extension rod. The two extension rods form a scissor structure at the left end of the adjustment frame, and the centers of the joints between the extension rods and the adjustment frame are on the same horizontal plane as the center of the nozzle of the annular surface spraying assembly.

[0016] Further, guide rods are movably connected to both the top and bottom of the mounting frame. The opposite sides of the two guide rods are respectively fixedly connected to the outside of the two assembly groups. The rear side of the mounting frame is fixedly connected to the Z-axis movement of the three-axis linear module, and the three-axis linear module is arranged at the first spraying station.

[0017] 3. Beneficial effects: Adopting the technical solution provided by the present invention, compared with the prior art, it has the following beneficial effects: The present invention provides a device for spraying annular marks on the outer side of a pipeline. The pipe body spraying assembly and the annular surface spraying assembly are adopted to replace manual brushing. A gantry linear module is configured for the pipe body spraying assembly, and a flexible assembly component and a three-axis linear module are configured for the annular surface spraying assembly. The pipe body and the annular surface of the pipeline can be sprayed at the first spraying station and the second spraying station, avoiding the problems of low efficiency and chaotic marking positions caused by manual brushing.

[0018] The present invention provides a device for spraying annular marks on the outer side of a pipeline. The assembly seat is flexibly assembled on the mounting frame through a limiting spring, and guide rods are arranged between the mounting frame and the assembly seat to complete the up and down floating guidance of the assembly seat in the middle of the mounting frame. When the contact wheel outside the adjustment frame clamps the rotating pipeline at the first spraying station, when the pipeline jumps during rotation, the clamping of the pipeline by the contact wheel and the floating design of the adjustment frame on the mounting frame ensure that the nozzle of the annular surface spraying assembly always faces the annular surface of the pipeline.

[0019] The present invention provides a device for spraying annular marks on the outer side of a pipeline. Two gantry linear modules complete the adjustment of the working positions of the frame at the first spraying station and the second spraying station. The lifting cylinder cooperates with the sliding frame to complete the adjustment of the working height of the pipe body spraying assembly, meeting the spraying operation requirements of pipelines with different pipe diameters on the alignment wheels.

[0020] Parts not involved in this device are the same as those in the prior art or can be implemented by using the prior art. Description of the drawings

[0021] Figure 1 Is a three-dimensional view of the structure of the present invention; Figure 2 Is a three-dimensional view of the gantry linear module structure of the present invention Figure 1 ; Figure 3 Is a three-dimensional view of the pipe transport trolley structure of the present invention Figure 1 ; Figure 4 The enlarged view of the structure at position A in Figure 3 the present invention; Figure 5 The three-dimensional Figure 2 view of the gantry linear module structure of the present invention; Figure 6 The enlarged view of the structure at position B in Figure 5 the present invention; Figure 7 The left view of the mounting seat structure of the present invention; Figure 8 The three-dimensional view of the mounting seat structure of the present invention; Figure 9 The three-dimensional view of the three-axis linear module structure of the present invention; Figure 10 The three-dimensional view of the adjusting frame structure of the present invention; Figure 11 The three-dimensional Figure 2 view of the pipe transport trolley structure of the present invention; Figure 12 The enlarged view of the structure at position C in Figure 11 the present invention.

[0022] Reference numerals: Floor - 1; Tooth rail - 11; Pipe transport trolley - 2; First motor - 21; Spur gear - 22; Deflection frame - 23; Connecting frame - 24; Lifting cylinder - 25; Bracket - 26; Support seat - 27; Mounting seat - 3; Second motor - 31; Alignment wheel - 32; Auxiliary frame - 33; Third motor - 34; Axial adjusting wheel - 35; Feeding guide rail - 4; Discharging guide rail - 5; Gantry linear module - 6; Frame - 61; Lifting cylinder - 62; Slide carriage - 63; Pipe body spraying assembly - 64; Adjusting frame - 7; Fourth motor - 701; Lead screw - 702; Slide block - 703; Extension rod - 71; Contact wheel - 7101; Adjusting rod - 72; Extension frame - 73; Toroidal surface spraying assembly - 7301; Assembly seat - 8; Limiting spring - 81; Mounting frame - 82; Guide rod - 83; Three-axis linear module - 84. Detailed implementation manners

[0023] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element; when an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time; the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this invention belongs; the terms used herein in the specification of this invention are only for the purpose of describing specific embodiments and are not intended to limit this invention; the term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0026] Embodiment: Refer to Figure 1-12 , a pipeline outer ring marking spraying device, including the following structures: The platform 1, and a feeding station, a spraying station and a discharging station are arranged on one side of the platform 1 from back to front.

[0027] The adjusting frame 7, assembly seats 8 are welded to the top and bottom of the right end of the adjusting frame 7. Limit springs 81 are fixedly arranged at the four corners of the top of the assembly seat 8. The outer sides of the limit springs 81 above and below the adjusting frame 7 are respectively fixedly connected to the top and bottom of the front end of the mounting frame 82. The front and rear sides of the left end of the adjusting frame 7 are respectively movably connected to the left ends of two extension rods 71. Adjusting rods 72 are arranged on the top and bottom of the adjusting frame 7. The rear ends of the two adjusting rods 72 are respectively movably connected to the middle parts of the two extension rods 71. An extension frame 73 is fixedly arranged on the front side of the adjusting frame 7, and a ring surface spraying assembly 7301 is fixedly arranged on the rear side of the extension frame 73.

[0028] In this embodiment, a toothed rail 11 is fixedly arranged in the middle of the platform 1. The left and right sides of the top of the platform 1 are respectively movably connected to the bottom of the left and right ends of the pipe transporting trolley 2 through wheels. A first motor 21 is fixedly arranged in the middle of the rear end of the pipe transporting trolley 2. A spur gear 22 is fixedly arranged at the bottom output end of the first motor 21. The left side of the spur gear 22 meshes with the right side of the toothed rail 11.

[0029] The first motor 21 drives the spur gear 22 to rotate outside the toothed rail 11, drives the pipe transporting trolley 2 to slide on the platform 1, and completes the working position of the supporting seat 27.

[0030] In this embodiment, deflection frames 23 and connecting frames 24 are movably connected to both the front and rear ends of the pipe transport trolley 2. The bottom of the deflection frame 23 and the bottom of the connecting frame 24 are movably connected by a connecting rod. A lifting cylinder 25 is movably connected to the bottom of the pipe transport trolley 2, and the output end of the lifting cylinder 25 is movably connected to the bottom of the deflection frame 23. A bracket 26 is provided on the top of the pipe transport trolley 2. The front and rear sides of the bottom of the bracket 26 are movably connected to the top of the deflection frame 23 and the top of the connecting frame 24 respectively. A plurality of support seats 27 for cooperating with the pipes are fixedly provided on the top of the bracket 26.

[0031] The bracket 26 is assembled above the pipe transport trolley 2 through the deflection frame 23 and the connecting frame 24 respectively. The bottom of the deflection frame 23 and the bottom of the connecting frame 24 are movably connected by a connecting rod. At this time, the deflection frame 23, the connecting frame 24, the connecting rod and the bracket 26 form a quadrilateral frame structure. The lifting cylinder 25 pulls the deflection frame 23 to complete the adjustment of the working height of the bracket 26 above the pipe transport trolley 2. Cooperating with the first motor 21 to drive the flat gear 22 to rotate outside the tooth rail 11, the pipe transport trolley 2 moves the support seat 27 at the feeding guide rail 4, the mounting seat 3 and the discharging guide rail 5. The support seat 27 holds the pipe and sends it into the first spraying station and the second spraying station.

[0032] In this embodiment, it further includes two mounting seats 3. The two mounting seats 3 are symmetrically arranged about the middle of the floor 1. The rear end and the front end of the mounting seat 3 are respectively divided into a first spraying station and a second spraying station.

[0033] A second motor 31 is fixedly provided on the outside of the mounting seat 3. Four pairs of alignment wheels 32 are movably connected in pairs on the top of the mounting seat 3. The output end of the second motor 31 is fixedly connected to the middle of the alignment wheel 32 at the first spraying station.

[0034] An auxiliary frame 33 is fixedly provided on the left side of the mounting seat 3. A third motor 34 is fixedly provided on the rear side of the auxiliary frame 33. The front and rear sides of the top of the auxiliary frame 33 are movably connected to the front and rear ends of the axial adjustment wheel 35 respectively. The front output end of the third motor 34 is fixedly connected to the rear side of the axial adjustment wheel 35.

[0035] In the first spraying station, the second motor 31 drives the alignment wheel 32 to rotate, driving the pipe in the first spraying station to rotate, which is convenient for the pipe body spraying assembly 64 and the ring surface spraying assembly 7301 to perform rotary spraying operations on the pipe body and the ring surface of the pipe. In the second spraying station, the alignment wheel 32 is not provided with a power source, which is convenient for the pipe body spraying assembly 64 in the second spraying station to perform spraying processing on the pipe body of the pipe.

[0036] The third motor 34 and the axial adjustment wheel 35 on the auxiliary frame 33 cooperate to change the working position of the pipe on the alignment wheel 32. The pipe moves along its own axis, changing the working distance between the right end ring surface of the pipe and the ring surface spraying assembly 7301, which is convenient for the ring surface spraying assembly 7301 to carry out the ring surface spraying operation of the pipe.

[0037] In this embodiment, a feeding guide rail 4 and a discharging guide rail 5 are respectively arranged at the rear side and the front side of the mounting seat 3.

[0038] The feeding guide rail 4 and the discharging guide rail 5 are used for guiding the feeding and discharging of the pipeline.

[0039] In this embodiment, gantry linear modules 6 are arranged on both the front and rear sides above the mounting seat 3. The two gantry linear modules 6 are respectively located at the first spraying station and the second spraying station. A frame 61 is fixedly arranged at the moving end of the gantry linear module 6. A lifting cylinder 62 is fixedly arranged in the middle of the frame 61. The bottom output end of the lifting cylinder 62 is fixedly provided with a sliding frame 63. The left and right sides of the sliding frame 63 are respectively slidably connected to the left and right ends of the frame 61. A pipe body spraying component 64 is fixedly arranged at the bottom of the sliding frame 63.

[0040] The two gantry linear modules 6 complete the adjustment of the working position of the frame 61 at the first spraying station and the second spraying station. The lifting cylinder 62 and the sliding frame 63 cooperate to complete the adjustment of the working height of the pipe body spraying component 64, meeting the spraying operation requirements of pipes with different pipe diameters on the alignment wheel 32.

[0041] In this embodiment, a fourth motor 701 is fixedly arranged at the right end of the adjusting frame 7. A lead screw 702 is fixedly arranged at the left output end of the fourth motor 701. The left and right ends of the lead screw 702 are respectively movably connected to the left and right ends of the adjusting frame 7. A sliding seat 703 is threadedly connected to the outside of the lead screw 702. The outside of the sliding seat 703 is slidably connected to the middle of the adjusting frame 7. The top and bottom of the sliding seat 703 are respectively movably connected to the right ends of two adjusting rods 72.

[0042] The fourth motor 701 drives the lead screw 702 to rotate on the adjusting frame 7, changing the working position of the sliding seat 703 on the adjusting frame 7. The sliding seat 703 and the adjusting rod 72 cooperate to change the opening and closing distance between the two extension rods 71 on the left side of the adjusting frame 7, meeting the compatible clamping design of the two contact wheels 7101 for pipes with different wall thicknesses.

[0043] In this embodiment, a contact wheel 7101 that contacts the inner wall of the pipe is movably connected to the left end of the extension rod 71. The two extension rods 71 form a scissors structure at the left end of the adjusting frame 7. The center of the connection between the extension rod 71 and the adjusting frame 7 is on the same horizontal plane as the center of the nozzle of the annular surface spraying component 7301.

[0044] The designed positional relationship between the extension rod 71 and the annular surface spraying component 7301 ensures that the nozzle of the annular surface spraying component 7301 is always in the middle position between the two contact wheels 7101, ensuring that the annular surface spraying component 7301 sprays and marks the annular surface of the pipe. Different marks can be sprayed on the annular surface of the pipe according to the production requirements of users.

[0045] In this embodiment, guide rods 83 are movably connected to both the top and bottom of the mounting frame 82. The opposite sides of the two guide rods 83 are respectively fixedly connected to the outsides of the two assembly groups. The rear side of the mounting frame 82 is fixedly connected to the Z-axis movement of the three-axis linear module 84, and the three-axis linear module 84 is arranged at the first spraying station.

[0046] The mounting seat 3 and the three-axis linear module 84 complete the adjustment of the working position of the toroidal spraying assembly 7301 at the first spraying station.

[0047] The assembly seat 8 is flexibly assembled on the mounting frame 82 through the limiting spring 81. Guide rods 83 are arranged between the mounting frame 82 and the assembly seat 8 to complete the up-and-down floating guidance of the assembly seat 8 in the middle of the mounting frame 82. When the contact wheel 7101 on the adjusting frame 7 clamps the rotating pipeline at the first spraying station and the pipeline jumps during rotation, the clamping of the pipeline by the contact wheel 7101 and the floating design of the adjusting frame 7 on the mounting frame 82 ensure that the nozzle of the toroidal spraying assembly 7301 always faces the toroidal surface of the pipeline.

[0048] Working principle: The lifting cylinder 25 pulls the deflecting frame 23 to complete the adjustment of the working height of the bracket 26 above the pipe transport trolley 2. In cooperation with the first motor 21 driving the flat gear 22 to rotate outside the tooth rail 11, the pipe transport trolley 2 moves to support the support seat 27 at the feeding guide rail 4, the mounting seat 3, and the discharging guide rail 5, and the support seat 27 holds the pipeline and sends it to the first spraying station and the second spraying station.

[0049] The second motor 31 drives the alignment wheel 32 to rotate, driving the pipeline in the first spraying station to rotate, facilitating the rotating spraying operation of the pipe body spraying assembly 64 and the toroidal spraying assembly 7301 on the pipe body and the toroidal surface of the pipeline. The third motor 34 and the axial adjusting wheel 35 on the auxiliary frame 33 cooperate to change the working position of the pipeline on the alignment wheel 32, and the pipeline moves along its own axis to change the working distance between the toroidal surface at the right end of the pipeline and the toroidal spraying assembly 7301.

[0050] The two gantry linear modules 6 complete the adjustment of the working positions of the frame 61 at the first spraying station and the second spraying station. The lifting cylinder 62 and the sliding frame 63 cooperate to complete the adjustment of the working height of the pipe body spraying assembly 64, and the pipe body spraying assembly 64 sprays the pipeline at the first spraying station and the second spraying station.

[0051] The mounting seat 3 and the three-axis linear module 84 complete the adjustment of the working position of the toroidal spraying assembly 7301 at the first spraying station. The assembly seat 8 is flexibly assembled on the mounting frame 82 through the limiting spring 81. Guide rods 83 are arranged between the mounting frame 82 and the assembly seat 8 to complete the up-and-down floating guidance of the assembly seat 8 in the middle of the mounting frame 82, meeting the requirement of the toroidal spraying assembly 7301 for spraying and marking the toroidal surface of the pipeline.

[0052] The above-described embodiments merely represent certain implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent for the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention shall be subject to the appended claims.

Claims

1. A spraying device for circumferential marking on the outer side of a pipeline, characterized in that: It includes the following structures: A platform (1), and a feeding station, a spraying station and a discharging station are arranged on one side of the platform (1) from back to front; An adjusting frame (7), assembly seats (8) are welded to the top and bottom of the right end of the adjusting frame (7), limiting springs (81) are fixedly arranged at the four corners of the top of each assembly seat (8), the outer sides of the limiting springs (81) at the upper and lower positions of the adjusting frame (7) are respectively fixedly connected to the top and bottom of the front end of an installation frame (82), the front and rear sides of the left end of the adjusting frame (7) are respectively movably connected to the left ends of two extension rods (71), adjusting rods (72) are arranged at the top and bottom of the adjusting frame (7), the rear ends of the two adjusting rods (72) are respectively movably connected to the middle parts of the two extension rods (71), an extension frame (73) is fixedly arranged on the front side of the adjusting frame (7), and an annular surface spraying assembly (7301) is fixedly arranged on the rear side of the extension frame (73).

2. The circumferential marking spraying device for the outer side of a pipeline according to claim 1, characterized in that: A toothed rail (11) is fixedly arranged in the middle of the platform (1), the left and right sides of the top of the platform (1) are respectively movably connected to the bottoms of the left and right ends of a pipe transport trolley (2) through wheels, a first motor (21) is fixedly arranged in the middle of the rear end of the pipe transport trolley (2), a spur gear (22) is fixedly arranged at the bottom output end of the first motor (21), and the left side of the spur gear (22) meshes with the right side of the toothed rail (11).

3. The outer circumferential marking spraying device for a pipeline according to claim 2, wherein: Deflection frames (23) and connecting frames (24) are movably connected to the front and rear ends of the pipe transport trolley (2), the bottom of the deflection frame (23) is movably connected to the bottom of the connecting frame (24) through a connecting rod, a lifting cylinder (25) is movably connected to the bottom of the pipe transport trolley (2), the output end of the lifting cylinder (25) is movably connected to the bottom of the deflection frame (23), a bracket (26) is arranged on the top of the pipe transport trolley (2), the front and rear sides of the bottom of the bracket (26) are respectively movably connected to the top of the deflection frame (23) and the top of the connecting frame (24), and a plurality of support seats (27) for fitting pipes are fixedly arranged on the top of the bracket (26).

4. A spray device for circumferential marking on the outer side of a pipeline according to claim 1, wherein: It further includes two mounting seats (3), the two mounting seats (3) are symmetrically arranged about the middle of the platform (1) left and right, and the rear end and the front end of the mounting seat (3) are respectively divided into a first spraying station and a second spraying station; A second motor (31) is fixedly arranged on the outer side of the mounting seat (3), four pairs of alignment wheels (32) are movably connected in pairs on the top of the mounting seat (3), and the output end of the second motor (31) is fixedly connected to the middle of the alignment wheel (32) at the first spraying station; An auxiliary frame (33) is fixedly arranged on the left side of the mounting seat (3), a third motor (34) is fixedly arranged on the rear side of the auxiliary frame (33), the front and rear sides of the top of the auxiliary frame (33) are respectively movably connected to the front and rear ends of an axial adjusting wheel (35), and the front side output end of the third motor (34) is fixedly connected to the rear side of the axial adjusting wheel (35).

5. The spray coating device for outer circumferential ring markings of a pipeline according to claim 4, characterized in that: A feeding guide rail (4) and a discharging guide rail (5) are respectively arranged on the rear side and the front side of the mounting seat (3).

6. The spray coating device for circumferential marking on the outer side of a pipeline according to claim 4, wherein: Above the front and rear sides of the mounting base (3), gantry linear modules (6) are provided. The two gantry linear modules (6) are respectively located at the first spraying station and the second spraying station. A machine frame (61) is fixedly arranged at the moving end of the gantry linear module (6). A lifting cylinder (62) is fixedly arranged in the middle of the machine frame (61). A sliding frame (63) is fixedly arranged at the bottom output end of the lifting cylinder (62). The left and right sides of the sliding frame (63) are respectively slidably connected to the left and right ends of the machine frame (61). A pipe body spraying assembly (64) is fixedly arranged at the bottom of the sliding frame (63).

7. The circumferential marking spraying device for the outer side of a pipeline according to claim 1, wherein: A fourth motor (701) is fixedly arranged at the right end of the adjusting frame (7). A lead screw (702) is fixedly arranged at the left output end of the fourth motor (701). The left and right ends of the lead screw (702) are respectively movably connected to the left and right ends of the adjusting frame (7). A sliding seat (703) is threadedly connected to the outer side of the lead screw (702). The outer side of the sliding seat (703) is slidably connected to the middle of the adjusting frame (7). The top and bottom of the sliding seat (703) are respectively movably connected to the right ends of two adjusting rods (72).

8. A pipeline outer side ring marking spraying device according to claim 1, characterized in that: A contact wheel (7101) that contacts the inner wall of the pipe is movably connected to the left end of the extension rod (71). The two extension rods (71) form a scissor structure at the left end of the adjusting frame (7). The center of the connection between the extension rod (71) and the adjusting frame (7) is on the same horizontal plane as the center of the nozzle of the annular surface spraying assembly (7301).

9. A pipeline outer circumferential marking spraying device according to claim 1, characterized in that: Guide rods (83) are movably connected to the top and bottom of the mounting frame (82). The opposite sides of the two guide rods (83) are respectively fixedly connected to the outer sides of the two assembly groups. The rear side of the mounting frame (82) is fixedly connected to the Z-axis movement of the three-axis linear module (84). The three-axis linear module (84) is arranged at the first spraying station.

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