Pipe spraying device

Abstract

The utility model belongs to the technical field of spraying equipment, concretely relates to a pipe spraying device, aims at solving the problem of the difficulty of the timely diffusion of the organic solvent and the harmful gas volatilized in the spraying and solidification process of the coating due to the limited ventilation condition of part construction scene (for example, the semi-closed space such as underground tunnel, equipment interlayer etc.). The utility model includes drive mechanism, clamping mechanism and actuating mechanism. The pipe spraying device provided by the utility model is used, and the clamping mechanism fixes multiple pipes on the multiple drive ends of the pipe drive structure respectively, then the pipe drive structure drives multiple pipes to rotate around the respective axis, then the spray head drive structure drives the spraying swing arm to move along the length direction of the pipe, and drives the spraying swing arm to reciprocate around the axis of the swing guide rail, so that the spray gun sprays the coating on the pipe surface, and then the volatilized organic solvent and harmful gas are restrained in the spraying space.

Description

Technical Field

[0001] This utility model belongs to the field of spraying equipment technology, and specifically relates to a pipe spraying device. Background Technology

[0002] To ensure the fire resistance of pipes in fire scenarios, it is usually necessary to coat their surfaces with special fire-retardant coatings to achieve heat insulation and flame retardant functions. However, during transportation, handling, and on-site installation, the coating is easily damaged by mechanical forces such as friction and collision, causing local fire resistance failure of the pipes and making it difficult to ensure the effective protection performance of the overall structure in a fire. Therefore, in engineering practice, on-site spraying is commonly used for the application of protective coatings to minimize coating damage.

[0003] In existing technologies, after pipes are sprayed on-site, the fire-retardant coating on their surface mostly relies on natural air drying to cure. However, due to the limited ventilation conditions in some construction scenarios (such as underground tunnels, equipment mezzanines, and other semi-enclosed spaces), the organic solvents and harmful gases volatilized during the spraying and curing process are difficult to disperse in a timely manner, thus affecting the air quality in the working environment. Utility Model Content

[0004] To address the aforementioned problems in existing technologies, namely the limited ventilation in some construction scenarios (such as underground tunnels, equipment mezzanines, and other semi-enclosed spaces) hindering the timely dissipation of organic solvents and harmful gases emitted during coating spraying and curing, thus affecting air quality in the work environment, this utility model provides a pipe spraying device:

[0005] The system includes a drive mechanism, a clamping mechanism, and an actuator. One end of the actuator is detachably mounted to the drive mechanism, and the other end is detachably mounted to the clamping mechanism to form a spraying space for accommodating pipes for paint spraying and coating curing. The drive mechanism includes a pipe drive structure and a nozzle drive structure. The actuator includes a spray gun, a spray arm, and a swing guide rail. One end of the spray arm is connected to the spray gun, and the other end is slidably mounted on the swing guide rail. The pipe drive structure is configured with multiple drive ends, which are arranged in an arc array around the axis of the swing guide rail to drive multiple pipes to rotate around their respective axes. The clamping mechanism is used to fix the multiple pipes to the multiple drive ends. The nozzle drive structure is configured to drive the spray arm to move along the length of the pipe while simultaneously driving the spray arm to swing back and forth around the axis of the swing guide rail, so that the spray gun sprays paint onto the surface of the pipe.

[0006] Furthermore, the actuator also includes a drying structure; the drying structure includes a heater and a drying fan; one end of the heater is connected to the spraying space, and the other end is connected to the drying fan, for heating the flowing gas; the drying fan is connected to the spraying space, for driving the gas to circulate sequentially along the spraying space, the drying fan and the heater.

[0007] Furthermore, the actuator also includes an exhaust structure; the exhaust structure includes a filter canister and an exhaust fan; the inlet of the filter canister is connected to the spraying space, and its outlet is connected to the exhaust fan, for filtering the discharged gas; the exhaust fan is configured to drive the gas in the spraying space to pass sequentially through the filter canister and the exhaust fan to be discharged to the external environment.

[0008] Furthermore, the driving mechanism also includes a driving support plate; the pipe driving structure includes multiple positioning sleeves, multiple series transmission units, a transfer transmission unit, and a pipe driving motor; the multiple positioning sleeves are rotatably mounted on the driving support plate and arranged in an arc array with the axis of the swing guide rail as the center; adjacent positioning sleeves are connected by transmission through the series transmission units; the pipe driving motor is mounted on the driving support plate and is connected to one of the positioning sleeves by the transfer transmission unit, for driving the multiple positioning sleeves to rotate, thereby driving the multiple pipes to rotate around their respective axes.

[0009] Furthermore, the clamping mechanism includes a limiting structure; the limiting structure includes a limiting support plate, a telescopic support plate, multiple rotating sleeves, and an electric push rod; the multiple rotating sleeves are rotatably mounted on the telescopic support plate, and each has a circumferentially formed insertion hole for inserting the end of a pipe; the electric push rod is mounted on the limiting support plate, and its telescopic end is connected to the telescopic support plate, for adjusting the distance between the rotating sleeve and the positioning sleeve.

[0010] Furthermore, the limiting structure also includes multiple limiting push plates and multiple elastic elements; the limiting push plates are slidably inserted into the rotating sleeve to limit the movement of the pipe in the length direction; one end of the elastic element is connected to the rotating sleeve and the other end is connected to the limiting push plate to provide a pre-tightening force toward the end face of the pipe to the limiting push plate.

[0011] Furthermore, the actuator also includes a spraying structure; the spraying structure includes the spray gun, the spraying swing arm, the swing guide rail, the spraying support plate, the follower swing arm, and the drive screw; the spraying support plate is provided with a first arc-shaped guide hole; the swing guide rail is rotatably mounted on the spraying support plate and inserted into the follower swing arm; the surface of the swing guide rail is provided with a swing surface, so that the spraying swing arm can be driven by the swing guide rail to swing back and forth while moving along the length direction of the swing guide rail; the drive screw is rotatably mounted on the follower swing arm and threaded into the spraying swing arm; the drive screw is inserted into the first arc-shaped guide hole and can slide along the first arc-shaped guide hole.

[0012] Furthermore, the nozzle drive structure includes a swing support, a swing motor, a drive arm, and a travel motor; a second arc-shaped guide hole is provided on the drive support plate; the swing support is connected to the drive support plate; the swing motor is mounted on the swing support, and its rotation shaft is detachably connected to the swing guide rail; the drive arm is fitted onto the rotation shaft of the swing motor; the travel motor is mounted on the drive arm, and its rotation shaft is detachably connected to the drive screw; the rotation shaft of the travel motor is inserted into the second arc-shaped guide hole and can slide along the second arc-shaped guide hole.

[0013] Furthermore, the driving mechanism further includes a driving housing; the clamping mechanism further includes a clamping housing; the actuating mechanism further includes an actuating housing; one end of the actuating mechanism is detachably connected to the driving housing, and the other end is detachably connected to the clamping housing; the limiting support plate is connected to the side of the clamping housing away from the actuating housing, so that the limiting support plate, the clamping housing, the actuating housing and the driving housing together form a spraying space.

[0014] Furthermore, it includes multiple actuators; the multiple actuators are connected in series along the length of the tube; adjacent actuator housings are detachably connected; adjacent swing guides are detachably connected; and adjacent drive screws are detachably connected.

[0015] The beneficial effects of this utility model are:

[0016] The device includes a drive mechanism, a clamping mechanism, and an actuator. One end of the actuator is detachably mounted to the drive mechanism, and the other end is detachably mounted to the clamping mechanism to form a spraying space for accommodating pipes for paint spraying and coating curing. The drive mechanism includes a pipe drive structure and a nozzle drive structure. The actuator includes a spray gun, a spray arm, and a swing guide rail. One end of the spray arm is connected to the spray gun, and the other end is slidably mounted on the swing guide rail. The pipe drive structure is equipped with multiple drive ends, which are arranged in an arc array around the axis of the swing guide rail to drive multiple pipes to rotate around their respective axes. The clamping mechanism is used to fix multiple pipes to the multiple drive ends. The nozzle drive structure is configured to drive the spray arm to move along the length of the pipe while simultaneously driving the spray arm to swing back and forth around the axis of the swing guide rail, so that the spray gun sprays paint onto the surface of the pipe.

[0017] When the pipe spraying device provided by this utility model is in use, the clamping mechanism fixes multiple pipes to multiple drive ends on the pipe drive structure. Then, the pipe drive structure drives the multiple pipes to rotate around their respective axes. Then, the nozzle drive structure drives the spraying swing arm to move along the length of the pipe while driving the spraying swing arm to swing back and forth around the axis of the swing guide rail, so that the spray gun sprays the paint onto the surface of the pipe. During this process, the organic solvents and harmful gases volatilized during the paint spraying and coating curing are confined within the spraying space, thereby solving the problem of the organic solvents and harmful gases volatilized during the paint spraying and curing process affecting the air quality in the working environment. Attached Figure Description

[0018] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the pipe spraying device provided in this embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the drive mechanism provided in this embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the drive mechanism provided in this embodiment of the utility model, excluding the drive housing.

[0022] Figure 4 This is a front view of the drive mechanism provided in this embodiment of the utility model, excluding the drive housing;

[0023] Figure 5 This is a schematic diagram of the clamping mechanism provided in this embodiment of the utility model;

[0024] Figure 6This is a schematic diagram of the limiting structure provided in the embodiment of the present utility model;

[0025] Figure 7 This is a rear view of the limiting structure provided in this embodiment of the utility model;

[0026] Figure 8 This is a schematic diagram of the structure of the actuator provided in this embodiment of the utility model;

[0027] Figure 9 This is a rear view of the actuator provided in this embodiment of the utility model;

[0028] Figure 10 This is a schematic diagram of the spraying structure provided in the embodiment of this utility model;

[0029] Figure 11 This is a left view of the spraying structure provided in this embodiment of the utility model.

[0030] icon:

[0031] 100. Drive mechanism; 110. Pipe drive structure; 111. Positioning sleeve; 112. Series transmission unit; 113. Adapter transmission unit; 114. Pipe drive motor; 120. Nozzle drive structure; 121. Swing support; 122. Swing motor; 123. Drive swing arm; 124. Travel motor; 130. Drive bearing plate; 140. Drive housing; 200. Clamping mechanism; 210. Limiting structure; 211. Limiting bearing plate; 212. Telescopic bearing plate; 213. Rotating sleeve; 214. Electric push rod; 215. Limiting... 216. Push plate; 217. Elastic element; 218. Limiting slide rail; 220. Clamping housing; 300. Actuator; 310. Spraying structure; 311. Spray gun; 312. Spraying swing arm; 313. Swing guide rail; 314. Spraying support plate; 315. Follow-up swing arm; 316. Drive screw; 320. Drying structure; 321. Heater; 322. Drying fan; 330. Exhaust structure; 331. Filter tank; 332. Exhaust fan; 340. Actuating housing; 341. Main housing; 342. Opening and closing door; 343. Limit lock. Detailed Implementation

[0032] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] This utility model provides a pipe spraying device, including a drive mechanism 100, a clamping mechanism 200 and an execution mechanism 300.

[0035] The following combination Figures 1-11 The structure and shape of the pipe spraying device are described in detail:

[0036] One end of the actuator 300 is detachably mounted to the drive mechanism 100, and the other end is detachably mounted to the clamping mechanism 200, to enclose and form a spraying space for accommodating the pipe for paint spraying and coating curing; the drive mechanism 100 includes a pipe drive structure 110 and a nozzle drive structure 120; the actuator 300 includes a spray gun 311, a spraying swing arm 312, and a swing guide rail 313; one end of the spraying swing arm 312 is connected to the spray gun 311, and the other end is slidably mounted on the swing guide rail 313. The pipe drive structure 110 is equipped with multiple drive ends, which are arranged in an arc array around the axis of the swing guide rail 313, and are used to drive multiple pipes to rotate around their respective axes. The clamping mechanism 200 is used to fix multiple pipes to the multiple drive ends respectively. The nozzle drive structure 120 is configured to drive the spraying swing arm 312 to move along the length of the pipe while driving the spraying swing arm 312 to swing back and forth around the axis of the swing guide rail 313, so that the spray gun 311 sprays paint onto the surface of the pipe.

[0037] In this embodiment, multiple pipes are first fixed to multiple drive ends on the pipe drive structure 110 by the clamping mechanism 200. At this time, the arc surface that is tangent to multiple arc arrayed pipes is set as the reference surface. Then, the pipe drive structure 110 drives multiple pipes to rotate around their respective axes. Then, the nozzle drive structure 120 drives the spraying swing arm 312 to move along the length of the pipe while driving the spraying swing arm 312 to swing back and forth around the axis of the swing guide rail 313, so that the paint output by the spray gun 311 is sprayed onto the reference surface with a wave trajectory. With the multiple pipes rotating around their respective axes, the paint can cover the outer surface of the pipes. During this process, the harmful gases of organic solvents volatilized during the paint spraying and coating curing process are confined within the spraying space formed by the drive mechanism 100, the clamping mechanism 200 and the execution mechanism 300.

[0038] To accelerate the curing of the coating on the pipe surface within the spraying space:

[0039] like Figure 9As shown, the actuator 300 also includes a drying structure 320; the drying structure 320 includes a heater 321 and a drying fan 322; one end of the heater 321 is connected to the spraying space and the other end is connected to the drying fan 322, for heating the flowing gas; the drying fan 322 is connected to the spraying space, for driving the gas to circulate sequentially along the spraying space, the drying fan 322 and the heater 321.

[0040] In this embodiment, the drying fan 322 drives the gas to circulate sequentially along the spraying space, the drying fan 322 and the heater 321. During this process, the heater 321 heats the gas flowing through it, so that the temperature in the spraying space gradually increases to the threshold, thereby accelerating the evaporation rate of the solvent in the coating on the pipe surface, and thus accelerating the curing of the coating on the pipe surface in the spraying space.

[0041] In order to remove organic solvents and harmful gases contained in the spraying space:

[0042] like Figure 9 As shown, the actuator 300 also includes an exhaust structure 330; the exhaust structure 330 includes a filter canister 331 and an exhaust fan 332; the inlet of the filter canister 331 is connected to the spraying space, and its outlet is connected to the exhaust fan 332, for filtering the discharged gas; the exhaust fan 332 is configured to drive the gas in the spraying space to pass through the filter canister 331 and the exhaust fan 332 in sequence and be discharged to the external environment.

[0043] In this embodiment, when the pipe is being coated or cured in the spraying space, the exhaust fan 332 drives the gas in the spraying space to pass through the filter tank 331 and the exhaust fan 332 in sequence to the external environment at a set flow rate. During this process, the organic solvents and harmful components in the gas are separated by the filter tank 331 to reduce the content of organic solvents and harmful gases in the gas in the spraying space, thereby avoiding the phenomenon of organic solvent explosion in the spraying space.

[0044] After the pipe is cured, the exhaust fan 332 drives the gas in the spraying space to be discharged to the external environment through the filter tank 331 and the exhaust fan 332 in sequence. During this process, the organic solvents and harmful components in the gas are separated by the filter tank 331 to prevent the organic solvents and harmful gases in the spraying space from escaping into the space where the device is located during the removal of the pipe.

[0045] In order for the pipe drive structure 110 to drive multiple pipes to rotate about their respective axes:

[0046] like Figures 2-4The drive mechanism 100 further includes a drive support plate 130; the pipe drive structure 110 includes multiple positioning sleeves 111, multiple series transmission units 112, a transfer transmission unit 113, and a pipe drive motor 114; the multiple positioning sleeves 111 are rotatably mounted on the drive support plate 130 and arranged in an arc array with the axis of the swing guide rail 313 as the center; adjacent positioning sleeves 111 are connected by transmission through the series transmission units 112; the pipe drive motor 114 is mounted on the drive support plate 130 and is connected to one of the positioning sleeves 111 by transmission through the transfer transmission unit 113, for driving the multiple positioning sleeves 111 to rotate, thereby driving the multiple pipes to rotate around their respective axes.

[0047] In this embodiment, the pipe drive motor 114 drives the corresponding positioning sleeve 111 to rotate around its own axis through the transfer transmission unit 113. The positioning sleeve 111 drives the adjacent positioning sleeve 111 to rotate around its own axis through the series transmission unit 112, and so on, so that multiple positioning sleeves 111 rotate around their own axes at the same time, thereby driving multiple pipes to rotate around their respective axes. The series transmission unit 112 and the transfer transmission unit 113 include gear sets or combinations of synchronous pulleys and synchronous belts.

[0048] In order to secure the pipe to the positioning sleeve 111:

[0049] like Figures 5-7 As shown, the clamping mechanism 200 includes a limiting structure 210; the limiting structure 210 includes a limiting support plate 211, a telescopic support plate 212, multiple rotating sleeves 213, and an electric push rod 214; the multiple rotating sleeves 213 are rotatably mounted on the telescopic support plate 212, and each has a circumferentially opened insertion hole for inserting the end of a pipe; the electric push rod 214 is mounted on the limiting support plate 211, and its telescopic end is connected to the telescopic support plate 212, for adjusting the distance between the rotating sleeve 213 and the positioning sleeve 111.

[0050] To improve the stability of the telescopic carrier plate 212 during movement:

[0051] like Figure 7 As shown, the limiting structure 210 also includes a limiting slide rail 217; one end of the limiting slide rail 217 is connected to the telescopic carrier plate 212, and the other end is slidably inserted into the limiting carrier plate 211, which is used to bear the stress perpendicular to the moving direction during the movement of the telescopic carrier plate 212, so as to improve the stability of the telescopic carrier plate 212 during the movement.

[0052] In this embodiment, one end of the pipe is first inserted into the rotary sleeve 213 through the insertion hole. Then, the pipe is moved along the rotary sleeve 213 towards the positioning sleeve 111 so that the end of the pipe away from the rotary sleeve 213 is inserted into the positioning sleeve 111. The above process is repeated to place multiple pipes between the corresponding rotary sleeve 213 and positioning sleeve 111. Then, the electric push rod 214 drives the telescopic carrier plate 212 to move towards the positioning sleeve 111 to reduce the distance between the rotary sleeve 213 and the positioning sleeve 111 and clamp and fix the pipe.

[0053] When it is necessary to fine-tune the length of the pipe to which the device is adapted, the electric push rod 214 drives the telescopic carrier plate 212 to move toward the positioning sleeve 111 to reduce the distance between the rotating sleeve 213 and the positioning sleeve 111, thereby fine-tuning the length of the pipe to which the device is adapted.

[0054] To prevent pipes from slipping during installation:

[0055] like Figure 5 As shown, the limiting structure 210 also includes multiple limiting push plates 215 and multiple elastic elements 216; the limiting push plates 215 are slidably inserted into the rotating sleeve 213 to limit the movement of the pipe in the length direction; one end of the elastic element 216 is connected to the rotating sleeve 213 and the other end is connected to the limiting push plate 215 to provide a pre-tightening force to the limiting push plate 215 toward the end face of the pipe.

[0056] In this embodiment, one end of the inclined pipe is first inserted into the rotary sleeve 213 through the insertion hole. During this process, the end of the pipe inserted into the rotary sleeve 213 contacts the limiting push plate 215 and drives the limiting push plate 215 to move along the rotary sleeve 213. The moving limiting push plate 215 drives the elastic element 216 to compress. Then, it drives the pipe to move along the rotary sleeve 213 towards the positioning sleeve 111 so that the end of the pipe away from the rotary sleeve 213 is inserted into the positioning sleeve 111. The elastic element 216 in the compressed state provides a pre-tightening force to the limiting push plate 215 towards the end face of the pipe, thereby clamping and fixing both ends of the pipe. The above is repeated to place multiple pipes between the corresponding rotary sleeve 213 and positioning sleeve 111. Then, the electric push rod 214 drives the telescopic carrier plate 212 to move towards the positioning sleeve 111 to reduce the distance between the rotary sleeve 213 and the positioning sleeve 111 and clamp and fix the pipe.

[0057] To enable the spraying swing arm 312 to move along the length of the pipe while simultaneously oscillating back and forth around the axis of the swing guide rail 313:

[0058] like Figure 8 , Figure 10 and Figure 11As shown, the actuator 300 also includes a spraying structure 310; the spraying structure 310 includes a spray gun 311, a spraying swing arm 312, a swing guide rail 313, a spraying support plate 314, a follower swing arm 315, and a drive screw 316; the spraying support plate 314 has a first arc-shaped guide hole; the swing guide rail 313 is rotatably mounted on the spraying support plate 314 and inserted into the follower swing arm 315; the surface of the swing guide rail 313 is provided with a swing surface so that the spraying swing arm 312 can be driven to swing back and forth by the swing guide rail 313 while moving along the length direction of the swing guide rail 313; the drive screw 316 is rotatably mounted on the follower swing arm 315 and threaded into the spraying swing arm 312; the drive screw 316 is inserted into the first arc-shaped guide hole and can slide along the first arc-shaped guide hole.

[0059] In this embodiment, the nozzle drive structure 120 drives the swing guide rail 313 to reciprocate around its own axis at a set angle. The swing guide rail 313 drives the drive screw 316 to reciprocate along the first arc-shaped guide hole through the follower swing arm 315 and the spraying swing arm 312, so that the spraying swing arm 312 swings back and forth around the axis of the swing guide rail 313. During this process, the nozzle drive structure 120 drives the drive screw 316 to rotate around its own axis. Under the engagement of the thread, the drive screw 316 drives the spraying swing arm 312 to move along the length direction of the swing guide rail 313, so that the spraying swing arm 312 moves along the length direction of the pipe and swings back and forth around the axis of the swing guide rail 313.

[0060] In order to simultaneously drive the oscillating guide rail 313 to reciprocate around its own axis at a set angle, and drive the drive screw 316 to rotate around its own axis:

[0061] like Figures 3-4 As shown, the nozzle drive structure 120 includes a swing support 121, a swing motor 122, a drive arm 123, and a travel motor 124; a second arc-shaped guide hole is provided on the drive support plate 130; the swing support 121 is connected to the drive support plate 130; the swing motor 122 is mounted on the swing support 121, and its rotation shaft is detachably connected to the swing guide rail 313; the drive arm 123 is fitted onto the rotation shaft of the swing motor 122; the travel motor 124 is mounted on the drive arm 123, and its rotation shaft is detachably connected to the drive screw 316; the rotation shaft of the travel motor 124 is inserted into the second arc-shaped guide hole and can slide along the second arc-shaped guide hole.

[0062] In this embodiment, while the swing motor 122 drives the swing guide rail 313 to reciprocate around its own axis at a set angle, it simultaneously drives the drive arm 123 to reciprocate. The drive arm 123 drives the swing motor 122 to reciprocate along the second arc-shaped guide hole. During this process, the swing motor 122 drives the drive screw 316 to rotate around its own axis, thereby realizing that while driving the swing guide rail 313 to reciprocate around its own axis at a set angle, it also drives the drive screw 316 to rotate around its own axis.

[0063] To enable the drive mechanism 100, clamping mechanism 200, and actuator 300 to enclose and form a spraying space:

[0064] like Figure 2 , Figure 5 and Figure 8 As shown, the drive mechanism 100 also includes a drive housing 140; the clamping mechanism 200 also includes a clamping housing 220; the actuator 300 also includes an actuator housing 340; one end of the actuator 300 is detachably connected to the drive housing 140, and the other end is detachably connected to the clamping housing 220; the limiting support plate 211 is connected to the side of the clamping housing 220 away from the actuator housing 340, so that the limiting support plate 211, the clamping housing 220, the actuator housing 340 and the drive housing 140 together form a spraying space.

[0065] In order to access and place the tubing within the spraying area:

[0066] like Figure 8 As shown, the execution housing 340 includes a main housing 341, a switch door 342, and a limit lock 343; one end of the main housing 341 is detachably connected to the drive housing 140, and the other end is detachably connected to the clamping housing 220; the switch door 342 is hinged to the main housing 341 to open or close the communication port of the execution housing 340; the switch door 342 is connected to the main housing 341 through the limit lock 343 to lock the switch door 342 to the main housing 341.

[0067] In this embodiment, the limiting bearing plate 211, the clamping housing 220, the execution housing 340 and the drive housing 140 together form a spraying space to accommodate the pipe for paint spraying and coating curing.

[0068] To adjust the length of the pipes that the device is compatible with:

[0069] like Figure 1 As shown, it includes multiple actuators 300; the multiple actuators 300 are connected in series along the length of the pipe; adjacent actuator housings 340 are detachably connected; adjacent swing guide rails 313 are detachably connected; and adjacent drive screws 316 are detachably connected.

[0070] In this embodiment, the length of the pipe to which the device is adapted is adjusted by adjusting the number of actuators 300 between the drive mechanism 100 and the clamping mechanism 200.

[0071] The terms “first”, “second”, etc., are used to distinguish similar objects, not to describe or indicate a specific order or sequence.

[0072] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent in such process, method, article, or apparatus / device.

[0073] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A pipe spraying device, characterized in that: It includes a drive mechanism (100), a clamping mechanism (200), and an actuator (300). One end of the actuator (300) is detachably mounted to the drive mechanism (100), and the other end is detachably mounted to the clamping mechanism (200) to enclose and form a spraying space for accommodating the pipe for coating spraying and coating curing; The drive mechanism (100) includes a pipe drive structure (110) and a nozzle drive structure (120). The actuator (300) includes a spray gun (311), a spraying swing arm (312), and a swing guide rail (313). One end of the spraying swing arm (312) is connected to the spray gun (311), and the other end is slidably fitted onto the swing guide rail (313). The pipe driving structure (110) is equipped with multiple driving ends, which are arranged in an arc array with the axis of the swing guide rail (313) as the center, and are used to drive multiple pipes to rotate around their respective axes. The clamping mechanism (200) is used to fix multiple tubes to multiple drive ends respectively; The nozzle drive structure (120) is configured such that while driving the spraying swing arm (312) to move along the length of the pipe, it drives the spraying swing arm (312) to swing back and forth around the axis of the swing guide rail (313) so that the spray gun (311) sprays the paint onto the surface of the pipe.

2. The pipe spraying device according to claim 1, characterized in that: The actuator (300) also includes a drying structure (320); The drying structure (320) includes a heater (321) and a drying fan (322); One end of the heater (321) is connected to the spraying space, and the other end is connected to the drying fan (322) for heating the flowing gas; The drying fan (322) is connected to the spraying space and is used to drive gas to circulate sequentially along the spraying space, the drying fan (322) and the heater (321).

3. The pipe spraying device according to claim 2, characterized in that: The actuator (300) also includes an exhaust structure (330); The exhaust structure (330) includes a filter canister (331) and an exhaust fan (332). The inlet of the filter tank (331) is connected to the spraying space, and its outlet is connected to the exhaust fan (332) for filtering the discharged gas. The exhaust fan (332) is configured to drive the gas in the spraying space to pass through the filter tank (331) and the exhaust fan (332) in sequence and be discharged to the external environment.

4. The pipe spraying device according to claim 3, characterized in that: The drive mechanism (100) also includes a drive support plate (130). The pipe drive structure (110) includes multiple positioning sleeves (111), multiple series transmission units (112), a transfer transmission unit (113), and a pipe drive motor (114). Multiple positioning sleeves (111) are rotatably mounted on the drive bearing plate (130) and arranged in an arc array with the axis of the swing guide rail (313) as the center; The adjacent positioning sleeves (111) are connected by the series transmission unit (112); The pipe drive motor (114) is mounted on the drive support plate (130) and is connected to one of the positioning sleeves (111) via a transfer transmission unit (113) to drive the multiple positioning sleeves (111) to rotate, thereby driving the multiple pipes to rotate around their respective axes.

5. The pipe spraying device according to claim 4, characterized in that: The clamping mechanism (200) includes a limiting structure (210); The limiting structure (210) includes a limiting bearing plate (211), a telescopic bearing plate (212), multiple rotating sleeves (213) and an electric push rod (214). Multiple rotary sleeves (213) can be rotatably mounted on the telescopic carrier plate (212), and are provided with insertion holes for inserting the ends of pipes in the circumferential direction; The electric push rod (214) is installed on the limiting support plate (211), and its telescopic end is connected to the telescopic support plate (212) for adjusting the distance between the rotary sleeve (213) and the positioning sleeve (111).

6. The pipe spraying device according to claim 5, characterized in that: The limiting structure (210) also includes multiple limiting push plates (215) and multiple elastic elements (216). The limiting push plate (215) is slidably inserted into the rotating sleeve (213) to limit the movement of the pipe in the length direction; One end of the elastic element (216) is connected to the rotary sleeve (213), and the other end is connected to the limiting push plate (215), which is used to provide a pre-tightening force to the limiting push plate (215) toward the end face of the pipe.

7. The pipe spraying device according to claim 6, characterized in that: The actuator (300) also includes a spraying structure (310); The spraying structure (310) includes the spray gun (311), the spraying swing arm (312), the swing guide rail (313), the spraying support plate (314), the follow-up swing arm (315), and the drive screw (316). The spraying support plate (314) is provided with a first arc-shaped guide hole; The swing guide rail (313) is rotatably mounted on the spraying support plate (314) and inserted into the follower swing arm (315); the surface of the swing guide rail (313) is provided with a swing surface so that the spraying swing arm (312) can be driven by the swing guide rail (313) to swing back and forth while moving along the length direction of the swing guide rail (313); The drive screw (316) is rotatably mounted on the follower arm (315) and threaded into the spraying arm (312); the drive screw (316) is inserted into the first arc-shaped guide hole and can slide along the first arc-shaped guide hole.

8. The pipe spraying device according to claim 7, characterized in that: The nozzle drive structure (120) includes a swing support (121), a swing motor (122), a drive arm (123), and a travel motor (124). The drive support plate (130) is provided with a second arc-shaped guide hole; The swing support (121) is connected to the drive bearing plate (130). The swing motor (122) is mounted on the swing support (121), and its rotation shaft is detachably connected to the swing guide rail (313). The drive arm (123) is mounted on the rotating shaft of the swing motor (122); The travel motor (124) is mounted on the drive arm (123), and its rotation shaft is detachably connected to the drive screw (316); the rotation shaft of the travel motor (124) is inserted into the second arc-shaped guide hole and can slide along the second arc-shaped guide hole.

9. The pipe spraying device according to claim 8, characterized in that: The drive mechanism (100) also includes a drive housing (140). The clamping mechanism (200) also includes a clamping housing (220); The actuator (300) also includes an actuator housing (340); One end of the actuator (300) is detachably connected to the drive housing (140), and the other end is detachably connected to the clamping housing (220). The limiting support plate (211) is connected to the side of the clamping housing (220) away from the execution housing (340), so that the limiting support plate (211), the clamping housing (220), the execution housing (340) and the drive housing (140) together form a spraying space.

10. The pipe spraying device according to claim 9, characterized in that: Includes multiple of the aforementioned actuators (300); Multiple actuators (300) are connected in series along the length of the pipe; The adjacent actuator housings (340) are detachably connected; The adjacent swing rails (313) are detachably connected; The adjacent drive screws (316) are detachably connected.

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