Splicing equipment for anticorrosive coating at splicing position of anticorrosive finned tube

Abstract

The invention relates to the technical field of pipeline corrosion prevention, in particular to equipment for spraying an anti-corrosion coating at the splicing position of anti-corrosion finned tubes. The driving mechanism is arranged in the workbench and is connected with the mounting plate on one side; the other side wall of the mounting disc is rotationally connected into the mounting plate through a shaft rod, and an output shaft of the rotating motor is connected with the shaft rod in the mounting plate through a synchronous wheel transmission assembly; the clamping mechanisms are arranged in the mounting discs on the two sides correspondingly, and the clamping mechanisms on the two sides are arranged in a bilateral symmetry mode. The upper side of the mounting arc plate is connected with a fixed rod through a lifting mechanism; the connecting pipes are symmetrically embedded in arc-shaped grooves in the lower sides of the mounting arc plates front and back, and the connecting pipes are connected with a pumping pump through shunt pipes; the nozzles are connected with the corresponding connecting pipes through hoses and are connected with the connecting pipes through angle adjusting mechanisms; finned tubes with different tube diameters can be clamped in a self-adaptive mode, meanwhile, a spray head can be accurately positioned, it is ensured that an anti-corrosion coating evenly covers a splicing welding seam, the spraying efficiency and quality are improved, manual intervention is reduced, and the automatic production requirement is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline corrosion prevention, in particular to a kind of anticorrosion coating spraying equipment for the splicing of anticorrosion finned tube. BACKGROUND

[0002] In industrial production, finned tube is widely used in heat exchange equipment, and its splicing is usually connected by welding. However, the welded part is prone to corrosion, and needs to be sprayed with anticorrosion coating to prolong its service life. Traditional spraying methods rely on manual operation, which has low efficiency, uneven coating and difficulty in accurately covering the weld joint. Although existing automatic spraying equipment can partially replace manual operation, it has poor adaptability to finned tubes of different diameters, insufficient flexibility in adjusting the angle of the spray head, and difficulty in accurately spraying the weld point through the gap between the fins. In addition, the equipment structure is complex and the operation is cumbersome, which cannot meet the needs of efficient anticorrosion treatment. SUMMARY

[0003] The present application aims to overcome the shortcomings of the prior art and provide an anticorrosion finned tube splicing anticorrosion coating spraying equipment with reasonable design and convenient use. It can self-adapt to clamp finned tubes of different diameters, accurately position the spray head, ensure uniform coverage of the anticorrosion coating on the splicing weld, improve spraying efficiency and quality, reduce manual intervention, and meet the needs of automated production.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: it contains a workbench, support feet and a fixed rod, the four corners of the lower surface of the workbench are fixed with support feet, the two sides above the workbench are provided with mounting plates, and a fixed rod is arranged between the two mounting plates, the lower end of the fixed rod is slidingly arranged in the sliding groove on the workbench; it also contains: A drive mechanism is arranged in the workbench, and the drive mechanism is connected to one side of the mounting plate, and the other side of the mounting plate is fixed on the upper surface of the workbench; Two mounting discs are embedded in the side wall adjacent to the center of the workbench in the two mounting plates respectively, and the other side wall of the mounting disc is rotatably connected to the shaft in the mounting plate through a shaft, and a rotating motor is embedded in one of the mounting plates, and the output shaft of the rotating motor is connected to the shaft in the mounting plate through a synchronous wheel transmission assembly; Two clamping mechanisms are arranged in the two mounting discs respectively; An installation arc plate is connected to the fixed rod through a lifting mechanism on the upper side of the installation arc plate; Two connecting pipes are symmetrically embedded in the arc-shaped groove on the lower side of the installation arc plate, and the connecting pipes are connected to a suction pump through a shunt, and the suction pump is fixed on the lifting mechanism; The two spray heads are arranged on the lower side of the connecting pipe one by one, and the spray head is connected with the corresponding connecting pipe through a hose, and the spray head is connected with the connecting pipe through an angle adjusting mechanism; Through the above technical scheme, the finned tube is placed between the two mounting plates, and the finned tube is clamped by the clamping mechanism, then according to the diameter of the finned tube, the driving mechanism is started, the driving mechanism drives the mounting plate on it to move, in the process of moving, the clamping mechanism is driven to move, so that the clamping mechanism on both sides can clamp the finned tube, then the mounting arc plate is driven to move downward by the lifting mechanism, so that the spray head is inserted between the fins outside the finned tube, then the direction of the spray head is adjusted by the angle adjusting mechanism, so that the spray head is aligned with the welded joint after splicing, finally the suction pump is started, and the external anticorrosive coating is sprayed on the welding position.

[0005] As a further improvement of the application, the outer side of the mounting plate is sleeved and fixed with an annular rail, and the annular rail is slidingly arranged in the annular groove on the mounting plate.

[0006] As a further improvement of the application, the driving mechanism comprises: The connecting frame is two, and is arranged in an inverted "L" shape, and the two connecting frames are respectively arranged on the two sides of the upper surface of the workbench and the front and rear side walls, and the horizontal plates of the two connecting frames are fixedly connected with the front and rear side walls of the mounting plate. The moving frame is movably arranged in the workbench, and the front and rear sides of the moving frame pass through the front and rear side walls of the workbench and are fixed on the vertical plates of the adjacent connecting frames. The driving screw is rotatably connected in the workbench through a bearing, and the middle end of the driving screw is connected with the moving frame through a thread, and one end of the driving screw is connected with a driving rod through a worm and gear pair, and the front end of the driving rod is exposed on the front side of the workbench after passing through the front side wall of the workbench. Through the above technical scheme, the driving rod drives the driving screw to rotate through the worm and gear pair, the driving screw drives the moving frame to move, the moving frame drives the two connecting frames to move, and the connecting frame drives the mounting plate to move until it reaches the appropriate position.

[0007] As a further improvement of the application, the front end of the driving rod is fixed with a rotating plate, and the front side wall of the rotating plate away from one end of the driving rod is rotatably connected with a handle through a bearing. Through the above technical scheme, the handle is held to drive the rotating plate to rotate, and the rotating plate drives the driving rod to rotate.

[0008] As a further improvement of the application, the clamping mechanism comprises: The clamping blocks are arranged at equal angles on one side of the mounting disc, and each clamping block is fixed with a sliding block which is slidably arranged in a sliding groove on the outer wall of the mounting disc; The driving disc is arranged in the mounting disc, and a plurality of driving grooves are arranged at equal angles on the driving disc, the driving grooves are arranged in an Archimedes spiral, and a push rod is arranged in each driving groove, and the push rod is fixed on the adjacent sliding block in one-to-one correspondence. The rotating rod is fixed on the side wall of the driving disc away from the sliding block, the rotating rod is rotatably connected to the mounting disc through a bearing, and the rotating rod is rotatably connected to the driving disc through a worm gear pair. The driving shaft is rotatably connected to the side wall of the driving disc through a bearing, and the driving shaft is connected to one end of the linkage shaft through a bevel gear pair, and the outer end of the driving shaft is located in the circular groove on the driving disc. Through the above technical scheme, after the clamping block is located in the finned tube, the driving shaft is rotated, the driving shaft drives the linkage shaft to rotate through the bevel gear pair, the linkage shaft drives the rotating rod to rotate through the worm gear pair, the rotating rod drives the driving disc to rotate, the driving grooves on the driving disc drive the push rods to move, the push rods drive the clamping blocks to move through the sliding blocks, and the clamping blocks abut against the inner ring wall of the finned tube, so that the clamping effect is achieved.

[0009] As a further improvement of the application, a plum blossom wrench is arranged in the circular groove on the driving disc, and the plum blossom wrench is sleeved and fixed on the outer end of the driving shaft, so that the driving shaft can be conveniently driven to rotate, and the operation is convenient.

[0010] As a further improvement of the application, the lifting mechanism comprises: The lifting plate is suspended on the upper side of the workbench, and the lifting plate is fixedly connected with the mounting arc plate, the rear side of the lower surface of the lifting plate is fixed with lifting strips which are symmetrically arranged on the left and right sides, the lifting strips are movably inserted into the fixed rod, and the limiting blocks on the front and rear side walls of the lifting strips are slidably arranged in the sliding grooves on the inner walls of the front and rear sides of the fixed rod. The lifting gears are rotatably connected to the fixed rod through shaft rods, the two lifting gears are arranged between the two lifting strips, and the lifting gears are rotatably arranged in the tooth grooves on the adjacent lifting strips. The lifting motor is embedded and fixed in the fixed rod, and the output shaft of the lifting motor is connected with one end of the shaft rod of one of the lifting gears. Through the above technical scheme, the lifting motor is started, the lifting motor drives the lifting gear connected therewith to rotate, the lifting gear drives the other lifting gear to rotate, the two lifting gears drive the lifting strips on the left and right sides to move up and down respectively, the lifting strips drive the mounting arc plate to move up and down through the lifting plate, and the mounting arc plate reaches the appropriate position.

[0011] As a further improvement of the present application, the angle adjusting mechanism comprises: The mounting strips are two and symmetrically fixed on the outer ring wall of the connecting pipe, with the lower side of the mounting strips located on both sides of the spray head, and the upper end of the outer ring wall of the spray head being rotatably connected with the lower end of the mounting strips through a shaft rod; The adjusting slave rod is rotatably connected in one of the mounting strips through a bearing, and is connected with the adjacent shaft rod through a worm and gear pair; The adjusting master rod is rotatably connected in the upper end of the mounting strip through a bearing, and is connected with the adjusting slave rod through a synchronous wheel transmission assembly, with one end of the adjusting master rod being fixed with a twisting plate after penetrating through one side wall of the mounting strip; Through the above technical solution, the twisting plate is rotated, the twisting plate drives the adjusting master rod to rotate, the adjusting master rod drives the adjusting slave rod to rotate through the synchronous wheel transmission assembly, and the adjusting slave rod drives the spray head to rotate through the worm and gear pair, until the spray head is rotated to a suitable angle.

[0012] As a further improvement of the present application, the upper end of the outer ring wall of the connecting pipe is symmetrically fixed with a rotating rod, the rotating rod is rotatably connected in the mounting arc plate through a bearing, one side of the rotating rod is connected with a rotating shaft through a worm and gear pair, the rotating shaft is rotatably connected in the mounting arc plate through a bearing, a synchronous rod is rotatably connected in the mounting arc plate through a bearing, the two ends of the synchronous rod are respectively connected with the rotating shafts on both sides through oppositely arranged bevel gear pairs, and one end of the synchronous rod is provided with a twisting plate exposed outside the mounting arc plate after penetrating through the mounting arc plate; Through the above technical solution, according to the diameter of the finned tube, the synchronous rod is rotated, the synchronous rod drives the two rotating shafts to rotate through the bevel gear pairs at both ends, the rotating shafts drive the rotating rod to rotate through the worm and gear pairs, and the rotating rod drives the connecting pipe to rotate, and the bevel gear pairs on both sides are in opposite directions, so that the connecting pipe is rotated in opposite directions, thereby facilitating the adjustment of the spray head to one side of the finned tube.

[0013] Compared with the prior art, the present application has the following advantages: 1. The self-adaptive clamping design can automatically adjust the distance between the mounting plates according to different pipe diameters, the rotating clamping mechanism ensures stable fixation, the lifting and angle adjusting mechanisms work cooperatively to accurately align the spray head with the weld joint, and the spraying precision is improved; 2. The motor-driven transmission mechanism with screws and gears is adopted to realize full automation of clamping, lifting and other actions, greatly reducing manual operation and significantly improving spraying efficiency, which is particularly suitable for batch production requirements; 3. The spray head has a multi-directional adjusting function, and is designed in cooperation with a bidirectional rotating connecting pipe to flexibly adjust the spraying angle, the pump ensures uniform coating spraying to avoid coating defects and improve corrosion resistance; 4, The optimized design of the annular track and the sliding groove enhances the operation stability, the humanized hand screwing and screwing plate facilitate operation adjustment, the overall structure is compact and reliable, and the advantages of automation and manual operation are combined, and maintenance is simple. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the application.

[0015] Figure 2 It is an exploded view of the workbench, mounting plate and driving mechanism in the application.

[0016] Figure 3 It is an exploded view of the clamping mechanism, mounting disc and rotary motor in the application.

[0017] Figure 4 It is an exploded view of the driving disc, sliding block and clamping block in the application.

[0018] Figure 5 It is Figure 4 the enlarged view of A part in the application.

[0019] Figure 6 It is an exploded view of the fixed rod and lifting mechanism in the application.

[0020] Figure 7 It is an exploded view of the mounting arc plate, connecting pipe, spray head and angle adjusting mechanism in the application.

[0021] Figure 8 It is Figure 7 the enlarged view of B part in the application.

[0022] Figure 9 It is an exploded view of the angle adjusting mechanism, connecting pipe and spray head in the application.

[0023] BRIEF DESCRIPTION OF DRAWINGS Workbench 1, support foot 2, mounting plate 3, fixed rod 4, driving mechanism 5, connecting frame 5-1, moving frame 5-2, driving screw 5-3, driving rod 5-4, mounting disc 6, rotary motor 7, clamping mechanism 8, clamping block 8-1, sliding block 8-2, driving disc 8-3, driving groove 8-3-1, pushing rod 8-4, rotating rod 8-5, linkage shaft 8-6, driving shaft 8-7, mounting arc plate 9, lifting mechanism 10, lifting plate 10-1, lifting bar 10-2, lifting gear 10-3, lifting motor 10-4, connecting pipe 11, pumping pump 12, spray head 13, angle adjusting mechanism 14, mounting bar 14-1, adjusting slave rod 14-2, adjusting master rod 14-3, screwing plate 14-4, annular track 15, rotating plate 16, handle rod 17, plum blossom hand screw 18, rotating rod 19, rotating shaft 20, synchronous rod 21. DETAILED DESCRIPTION

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1:

[0025] like Figures 1-9 As shown, this embodiment includes a workbench 1, support legs 2, mounting plates 3, and fixing rods 4. Support legs 2 are welded and fixed to the four corners of the lower surface of the workbench 1. Mounting plates 3 are provided on both sides of the upper surface of the workbench 1, and fixing rods 4 are provided between the two mounting plates 3. The lower end of the fixing rod 4 is slidably disposed in a sliding groove on the workbench 1. It also includes: The drive mechanism 5 is located inside the workbench 1 and is connected to the mounting plate 3 on the right side. The mounting plate 3 on the left side is welded and fixed to the upper surface of the workbench 1. Mounting discs 6, of which there are two, are respectively embedded in the side wall of the mounting plates 3 adjacent to the center of the workbench 1. The other side wall of the mounting disc 6 is screwed into the mounting plate 3 by a shaft. One of the mounting plates 3 is embedded with a rotary motor 7. The output shaft of the rotary motor 7 is connected to the shaft in the mounting plate 3 through a synchronous pulley transmission assembly. An annular rail 15 is sleeved and welded to the outside of the mounting disc 6. The annular rail 15 is slidably disposed in the annular groove on the mounting plate 3, which can increase the stability of the mounting disc 6 when rotating. Clamping mechanism 8, there are two clamping mechanisms 8, and they are respectively arranged in the mounting plates 6 on both sides, and the clamping mechanisms 8 on both sides are arranged symmetrically from left to right; The mounting arc plate 9 is suspended on the upper side of the workbench 1, and the upper side of the mounting arc plate 9 is connected to the fixed rod 4 through the lifting mechanism 10. There are two connecting pipes 11, which are symmetrically embedded in the arc groove on the lower side of the mounting arc plate 9. The connecting pipes 11 are connected to the pumping pump 12 through the diversion pipe. The pumping pump 12 is fixed on the lifting mechanism 10. Two nozzles 13 are provided, each corresponding to the one below the connecting pipe 11. Each nozzle 13 is connected to its corresponding connecting pipe 11 via a flexible hose and an angle adjustment mechanism 14. A rotating rod 19 is symmetrically fixed to the upper end of the outer ring wall of each connecting pipe 11. The rotating rod 19 is screwed into the mounting arc plate 9 via bearings. One side of each rotating rod 19 is connected to a rotating shaft 20 via a worm gear pair. The rotating shaft 20 is screwed into the mounting arc plate 9 via bearings. A synchronizing rod 21 is screwed into the mounting arc plate 9 via bearings. The two sides of the synchronizing rod 21... The ends are connected to the rotating shafts 20 on both sides through oppositely arranged bevel gear pairs. After one end of the synchronizing rod 21 passes through the mounting arc plate 9, the screw plate on it is exposed on the outside of the mounting arc plate 9. According to the diameter of the finned tube, the synchronizing rod 21 is rotated. The synchronizing rod 21 drives the two rotating shafts 20 to rotate through the bevel gear pairs at both ends. The rotating shafts 20 drive the rotating rod 19 to rotate through the worm gear pair. The rotating rod 19 drives the connecting pipe 11 to rotate. The bevel gear pairs on both sides are in opposite directions, so that the connecting pipe 11 rotates in opposite directions, which makes it easy to adjust the nozzle 13 to one side of the finned tube. Example 2:

[0026] See Figures 1-2 As shown, based on Embodiment 1, the driving mechanism 5 includes: Connecting frame 5-1, there are two connecting frames 5-1, and they are both arranged in an inverted "L" shape. The two connecting frames 5-1 respectively abut against the two sides of the upper surface of the workbench 1 and the front and rear side walls. The horizontal plates of the two connecting frames 5-1 are welded and fixed to the front and rear side walls of the mounting plate 3. The movable frame 5-2 is movably disposed inside the workbench 1. The front and rear sides of the movable frame 5-2 pass through the front and rear side walls of the workbench 1 respectively and are welded and fixed to the vertical plate of the adjacent connecting frame 5-1. A drive screw 5-3 is screwed into the worktable 1 via a bearing. The drive screw 5-3 is connected to the middle end of the moving frame 5-2 via a thread. One end of the drive screw 5-3 is connected to a drive rod 5-4 via a worm gear pair. The front end of the drive rod 5-4 passes through the front side wall of the worktable 1 and is exposed on the front side of the worktable 1. A rotating plate 16 is welded and fixed to the front end of the drive rod 5-4. A grip 17 is screwed onto the front side wall of the rotating plate 16 away from the drive rod 5-4 via a bearing. Holding the grip 17 causes the rotating plate 16 to rotate, which in turn causes the drive rod 5-4 to rotate. Example 3:

[0027] See Figure 1 , Figures 3-5 As shown, based on Embodiment 1, the clamping mechanism 8 includes: Clamping blocks 8-1, there are several clamping blocks 8-1, and they are equally angled on one side of the mounting plate 6. Each clamping block 8-1 is welded and fixed with a sliding block 8-2, and the sliding block 8-2 is slidably disposed in a groove on the outer wall of the mounting plate 6. The drive disk 8-3 is located inside the mounting disk 6. The drive disk 8-3 has drive grooves 8-3-1 at equal angles. The drive grooves 8-3-1 are arranged in the shape of an Archimedean spiral. Each drive groove 8-3-1 is provided with a push rod 8-4. The push rods 8-4 are welded and fixed to the adjacent sliding blocks 8-2 one by one. Rotating rod 8-5 is fixed on the side wall of drive disk 8-3 away from sliding block 8-2. Rotating rod 8-5 is screwed into mounting disk 6 through bearing. One side of rotating rod 8-5 is meshed with linkage shaft 8-6 through worm gear pair. Linkage shaft 8-6 is screwed into drive disk 8-3 through bearing. The drive shaft 8-7 is screwed onto one side wall of the drive disc 8-3 via a bearing. The drive shaft 8-7 is connected to one end of the linkage shaft 8-6 via a bevel gear pair. The outer end of the drive shaft 8-7 is located in a circular groove on the drive disc 8-3. A pendant screw 18 is provided in the circular groove on the drive disc 8-3. The pendant screw 18 is sleeved and welded to the outer end of the drive shaft 8-7, which facilitates the rotation of the drive shaft 8-7 and makes operation convenient. Example 4:

[0028] See Figure 1 , Figure 6 As shown, based on Embodiment 1, the lifting mechanism 10 includes: Lifting plate 10-1 is suspended on the upper side of workbench 1. Lifting plate 10-1 is welded and fixed to mounting arc plate 9. Lifting bars 10-2 are symmetrically welded and fixed on the rear side of the lower surface of lifting plate 10-1. Lifting bars 10-2 are movably inserted into fixed rod 4. Limiting blocks on the front and rear side walls of lifting bars 10-2 are slidably set in the sliding grooves on the front and rear inner walls of fixed rod 4. The lifting gear 10-3 consists of two gears, which are meshed together and screwed into the fixed rod 4 via a shaft. The two lifting gears 10-3 are located between the two lifting bars 10-2, and the lifting gears 10-3 are respectively meshed with the tooth grooves on the adjacent lifting bar 10-2. The lifting motor 10-4 is embedded and fixed in the fixing rod 4, and the output shaft of the lifting motor 10-4 is connected to the rear end of the shaft on the lifting gear 10-3 on the right side. Example 5:

[0029] See Figure 1 , 7As shown in Figures 9 and 1, based on Embodiment 1, the angle adjustment mechanism 14 includes: Mounting strip 14-1, there are two mounting strips 14-1, which are symmetrically fixed on the outer ring wall of the connecting pipe 11. The lower side of the mounting strip 14-1 is located on both sides of the nozzle 13. The upper end of the outer ring wall of the nozzle 13 is screwed to the lower end of the mounting strip 14-1 through a shaft. Adjusting rod 14-2 is screwed into one of the mounting bars 14-1 via a bearing, and the adjusting rod 14-2 is connected to the adjacent shaft via a worm gear pair; The main adjusting rod 14-3 is screwed into the upper end of the mounting strip 14-1 via a bearing. The main adjusting rod 14-3 is connected to the adjusting slave rod 14-2 via a synchronous wheel transmission assembly. One end of the main adjusting rod 14-3 passes through the left side wall of the mounting strip 14-1 and is then welded and fixed with a rotating plate 14-4.

[0030] In using this invention, the finned tube is placed between two mounting plates 3 and clamped by the clamping mechanism 8. Then, according to the diameter of the finned tube, the drive rod 5-4 drives the drive screw 5-3 to rotate via a worm gear pair. The drive screw 5-3 drives the moving frame 5-2 to move, which in turn drives the connecting frames 5-1 on both sides to move. The connecting frames 5-1 then drive the mounting plates 3 to move until the clamping block 8-1 is inside the finned tube. The drive shaft 8-7 is then rotated, driving the linkage shaft 8-6 to rotate via a bevel gear pair. The linkage shaft 8-6 drives the rotating rod 8-5 to rotate via a worm gear pair. The rotating rod 8-5 drives the drive disk 8-3 to rotate, and the drive groove 8-3-1 on the drive disk 8-3 drives the push rod 8-4 to move. The push rod 8-4 drives the clamping block 8-1 to move via the sliding block 8-2 until the clamping block 8-1 abuts against the inner ring wall of the finned tube, thus achieving the clamping effect. Then, the lifting motor 10-4 is started, which drives the connected lifting gear 10-3 to rotate. This lifting gear 10-3 drives another lifting gear 10-3 to rotate. The two lifting gears 10-3 drive the lifting bars 10-2 on both sides to move up and down respectively. The lifting bars 10-2 drive the mounting arc plate 9 to move up and down through the lifting plate 10-1 until the mounting arc plate 9 reaches the appropriate position, so that the nozzle 13 is inserted between the fins on the outside of the finned tube. Then, the rotating plate 14-4 is rotated, which drives the adjusting main rod 14-3 to rotate. The adjusting main rod 14-3 drives the adjusting slave rod 14-2 to rotate through the synchronous wheel transmission assembly. The adjusting slave rod 14-2 drives the nozzle 13 to rotate through the worm gear pair until the nozzle 13 rotates to the appropriate angle, so that the nozzle 13 is aligned with the welded point after splicing. Finally, the pumping pump 12 is started, which sprays the external anti-corrosion coating onto the weld.

[0031] Compared with the prior art, the beneficial effects of this specific embodiment are as follows: 1. The adaptive clamping design can automatically adjust the spacing of the mounting plate 3 according to different pipe diameters. The rotating clamping mechanism 8 ensures stable fixation. The lifting mechanism 10 and the angle adjustment mechanism 14 work together to make the nozzle 13 accurately penetrate into the fin gap and perfectly align with the weld seam, significantly improving the spraying coverage accuracy and uniformity.

[0032] 2. The motor drive, combined with lead screw, gear and worm gear transmission mechanism, realizes fully automated operation of clamping, lifting and rotating actions, greatly reduces manual intervention, significantly improves the efficiency of spraying operation, and fully meets the operation requirements of mass production line.

[0033] 3. The nozzle 13 has a multi-directional angle adjustment function. Combined with the bi-directional rotating design of the connecting pipe 11, the spray angle in various directions can be flexibly adjusted. The pump 12 and the diversion pipe work together to ensure uniform coating, effectively avoid the problem of missed spray or accumulation, and greatly improve the durability of anti-corrosion effect.

[0034] 4. The optimized design of the ring track and sliding groove structure enhances the stability of equipment operation. The user-friendly plum blossom hand-tightening 18 and adjusting plate facilitate fine adjustments by operators. The overall structure is compact, reliable and durable, perfectly balancing the needs of automated production and manual operation, and effectively reducing equipment maintenance costs.

[0035] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. A coating spraying device for anti-corrosion coating at the joint of anti-corrosion finned tubes, comprising a workbench (1), support feet (2), and fixing rods (4), wherein support feet (2) are fixed at the four corners of the lower surface of the workbench (1), and mounting plates (3) are provided on both sides above the workbench (1), and fixing rods (4) are provided between the two mounting plates (3), with the lower end of the fixing rods (4) slidably disposed in a sliding groove on the workbench (1); characterized in that: It also includes: The drive mechanism (5) is located inside the workbench (1). The drive mechanism (5) is connected to the mounting plate (3) on one side, and the mounting plate (3) on the other side is fixed on the upper surface of the workbench (1). Mounting discs (6), two mounting discs (6) are respectively embedded in the side wall of the mounting plates (3) adjacent to the center of the workbench (1) on both sides. The other side wall of the mounting discs (6) is screwed into the mounting plate (3) by a shaft. One of the mounting plates (3) is embedded with a rotary motor (7). The output shaft of the rotary motor (7) is connected to the shaft in the mounting plate (3) through a synchronous wheel transmission assembly. Clamping mechanism (8), there are two clamping mechanisms (8), and they are respectively disposed in the mounting plates (6) on both sides; The upper side of the mounting arc plate (9) is connected to the fixed rod (4) through the lifting mechanism (10); Connecting pipe (11), two connecting pipes (11) are symmetrically embedded in the arc groove on the lower side of the mounting arc plate (9). The connecting pipe (11) is connected to a pumping pump (12) through a diversion pipe. The pumping pump (12) is fixed on the lifting mechanism (10). The nozzles (13) are arranged one-to-one on the lower side of the connecting pipe (11). The nozzles (13) are connected to the corresponding connecting pipe (11) through a hose. The nozzles (13) are connected to the connecting pipe (11) through an angle adjustment mechanism (14).

2. The anti-corrosion coating spraying equipment for the splicing joint of anti-corrosion finned tubes according to claim 1, characterized in that: An annular rail (15) is fitted and fixed on the outer side of the mounting plate (6), and the annular rail (15) is slidably disposed in the annular groove on the mounting plate (3).

3. The anti-corrosion coating spraying equipment for the splicing joint of anti-corrosion finned tubes according to claim 1, characterized in that: The drive mechanism (5) includes: Connecting frame (5-1), there are two connecting frames (5-1), and they are both arranged in an inverted "L" shape. The two connecting frames (5-1) respectively abut against the two sides of the upper surface of the workbench (1) and the front and rear side walls. The horizontal plates of the two connecting frames (5-1) are fixedly connected to the front and rear side walls of the mounting plate (3). The movable frame (5-2) is movably installed inside the workbench (1). The front and rear sides of the movable frame (5-2) pass through the front and rear side walls of the workbench (1) and are fixed to the vertical plate of the adjacent connecting frame (5-1). The drive screw (5-3) is screwed into the worktable (1) through a bearing. The drive screw (5-3) is connected to the middle end of the moving frame (5-2) through a thread. One end of the drive screw (5-3) is connected to the drive rod (5-4) through a worm gear pair. The front end of the drive rod (5-4) passes through the front side wall of the worktable (1) and is exposed on the front side of the worktable (1).

4. The anti-corrosion coating spraying equipment for the splice joint of an anti-corrosion finned tube according to claim 3, characterized in that: The front end of the drive rod (5-4) is fixed with a rotating plate (16), and the end of the front side wall of the rotating plate (16) away from the drive rod (5-4) is screwed with a handle (17) through a bearing.

5. The anti-corrosion coating spraying equipment for the splicing joint of an anti-corrosion finned tube according to claim 1, characterized in that: The clamping mechanism (8) includes: Clamping blocks (8-1), there are several clamping blocks (8-1), and they are arranged at equal angles on one side of the mounting plate (6). Each clamping block (8-1) is fixed with a sliding block (8-2), and the sliding block (8-2) is slidably arranged in the groove on the outer wall of the mounting plate (6). The drive disk (8-3) is located inside the mounting disk (6). The drive disk (8-3) has drive grooves (8-3-1) at equal angles. The drive grooves (8-3-1) are arranged in an "Archimedean spiral". Each drive groove (8-3-1) is provided with a push rod (8-4). The push rods (8-4) are fixed one-to-one on the adjacent sliding blocks (8-2). Rotating rod (8-5), the rotating rod (8-5) is fixed on the side wall of the drive disk (8-3) away from the sliding block (8-2), the rotating rod (8-5) is screwed into the mounting disk (6) through bearings, and one side of the rotating rod (8-5) is meshed with the linkage shaft (8-6) through a worm gear pair, the linkage shaft (8-6) is screwed into the drive disk (8-3) through bearings; The drive shaft (8-7) is screwed onto one side wall of the drive disk (8-3) via a bearing. The drive shaft (8-7) is connected to one end of the linkage shaft (8-6) via a bevel gear pair. The outer end of the drive shaft (8-7) is located in a circular groove on the drive disk (8-3).

6. The anti-corrosion coating spraying equipment for the splice joint of an anti-corrosion finned tube according to claim 5, characterized in that: A plum blossom hand screw (18) is provided in the circular groove on the drive disk (8-3), and the plum blossom hand screw (18) is sleeved and fixed on the outer end of the drive shaft (8-7).

7. The anti-corrosion coating spraying equipment for the splice joint of an anti-corrosion finned tube according to claim 1, characterized in that: The lifting mechanism (10) includes: Lifting plate (10-1), the lifting plate (10-1) is suspended on the upper side of the workbench (1), the lifting plate (10-1) is fixedly connected to the mounting arc plate (9), the lifting plate (10-1) is symmetrically fixed on the rear side of the lower surface of the lifting plate (10-1), the lifting plate (10-2) is movably inserted into the fixed rod (4), and the limiting blocks on the front and rear side walls of the lifting plate (10-2) are slidably set in the sliding grooves on the front and rear inner walls of the fixed rod (4); The lifting gear (10-3) consists of two gears, which are meshed together and screwed into the fixed rod (4) via a shaft. The two lifting gears (10-3) are located between the two lifting bars (10-2), and the lifting gears (10-3) mesh with the tooth grooves on the adjacent lifting bars (10-2). The lifting motor (10-4) is embedded and fixed in the fixing rod (4), and the output shaft of the lifting motor (10-4) is connected to one end of the shaft on one of the lifting gears (10-3).

8. The anti-corrosion coating spraying equipment for the splicing joint of an anti-corrosion finned tube according to claim 1, characterized in that: The angle adjustment mechanism (14) includes: Mounting strip (14-1), there are two mounting strips (14-1), and they are symmetrically fixed on the outer ring wall of the connecting pipe (11). The lower side of the mounting strip (14-1) is located on both sides of the nozzle (13). The upper end of the outer ring wall of the nozzle (13) is screwed to the lower end of the mounting strip (14-1) through a shaft. The adjusting rod (14-2) is screwed into one of the mounting bars (14-1) by a bearing, and the adjusting rod (14-2) is connected to the adjacent shaft by a worm gear pair; The main adjusting rod (14-3) is screwed into the upper end of the mounting strip (14-1) via a bearing. The main adjusting rod (14-3) is connected to the adjusting slave rod (14-2) via a synchronous wheel transmission assembly. One end of the main adjusting rod (14-3) passes through one side wall of the mounting strip (14-1) and is fixed with a rotating plate (14-4).

9. The anti-corrosion coating spraying equipment for the splice joint of an anti-corrosion finned tube according to claim 1, characterized in that: The upper end of the outer ring wall of the connecting pipe (11) is symmetrically fixed with rotating rods (19). The rotating rods (19) are screwed into the mounting arc plate (9) through bearings. One side of the rotating rods (19) is connected to a rotating shaft (20) through a worm gear pair. The rotating shaft (20) is screwed into the mounting arc plate (9) through bearings. The mounting arc plate (9) is screwed with a synchronizing rod (21) through bearings. The two ends of the synchronizing rod (21) are respectively connected to the rotating shafts (20) on both sides through oppositely arranged bevel gear pairs. After one end of the synchronizing rod (21) passes through the mounting arc plate (9), the screw plate on it is exposed on the outside of the mounting arc plate (9).

Images