A mechanism for spraying powder to the outside of a can body weld

Abstract

The utility model discloses a kind of tank body weld joint outer powder spraying recoating mechanism, it is related to can weld joint protection technical field, comprising: mounting assembly and outer powder spraying component, mounting assembly includes mounting bracket, connecting frame, first locking piece and second locking piece, arc slot is equipped on connecting frame, one end of the connecting frame provided with arc slot is rotatably arranged on mounting bracket, outer powder spraying component is arranged in the other end of connecting frame, first locking piece is arranged on connecting frame, and located arc slot one end, first locking piece one end penetrates connecting frame, and with connecting frame rotationally connected, the end of first locking piece is screw thread connection with mounting bracket, second locking piece one end passes through arc slot, and with arc slot slidingly connected, the end of second locking piece is screw thread connection with mounting bracket, solve the angle and height of current powder spraying head's non-adjustable problem, to realize thick even, marginal clear, high-quality coating belt of beautiful and anticorrosive.

Description

Technical Field

[0001] This utility model relates to the field of can weld protection technology, and in particular to a powder coating mechanism for external spraying of can body welds. Background Technology

[0002] In metal can production, after the tinplate is welded into a circle, the tin plating layer at the weld seam is carried away by the copper wire, making the weld seam highly susceptible to corrosion. Therefore, it is necessary to apply anti-rust coating to prevent rust from forming at the weld seam. Especially during the roll forming, necking, handling, and transportation of finished products of food cans, the anti-corrosion layer of the anti-rust coating may be damaged due to impacts, leading to rust at the weld seam and affecting the appearance of the food can.

[0003] To address this issue, existing technologies often employ liquid coatings to repair external weld seams. However, liquid coatings are relatively thin and prone to damage, especially in necked cans. During transportation, the can bodies of necked cans come into direct contact and rub against each other, causing the coating to easily peel off and leading to weld rust. Powder coatings, on the other hand, are 3 to 5 times thicker than liquid coatings, thereby enhancing the corrosion resistance and wear resistance of the weld seam.

[0004] To ensure the powder is evenly and accurately sprayed onto the weld seam without scattering onto the surrounding tank surface, the powder spray head and tank must be precisely parallel, and the powder sheet must be properly compressed to prevent powder scattering. This requires the powder spray head to have adjustable angle and height. Utility Model Content

[0005] Based on this, and in response to the above problems, this utility model proposes a powder coating repair mechanism for tank body welds, which solves the problem that the angle and height of the current powder spraying head cannot be adjusted, thereby achieving a high-quality repair coating with uniform thickness, clear edges, and both aesthetic appeal and corrosion resistance.

[0006] The technical solution of this utility model is:

[0007] A powder coating repair mechanism for tank body weld seams includes:

[0008] Installation components are used to install external powder coating components;

[0009] External powder spraying assembly: The external powder spraying assembly is used to spray charged powder and recover excess powder;

[0010] The mounting assembly includes a mounting bracket, a connecting bracket, a first locking member, and a second locking member. The connecting bracket has an arc-shaped groove, and one end of the connecting bracket with the arc-shaped groove is rotatably mounted on the mounting bracket. The external powder spraying assembly is mounted on the other end of the connecting bracket. The first locking member is mounted on the connecting bracket and located at one end of the arc-shaped groove. One end of the first locking member passes through the connecting bracket and is rotatably connected to the connecting bracket. The end of the first locking member is threadedly connected to the mounting bracket. One end of the second locking member passes through the arc-shaped groove and is slidably connected to the arc-shaped groove. The end of the second locking member is threadedly connected to the mounting bracket.

[0011] The mounting frame is equipped with a height adjustment plate, which is slidably connected to the mounting frame. A threaded fixing block is provided on one side of the height adjustment plate, which is fixedly connected to the height adjustment plate. A threaded adjusting rod is provided on the threaded fixing block and is threadedly connected to the threaded fixing block. One end of the threaded adjusting rod is threadedly connected to the mounting frame, and one end of the connecting frame is rotatably connected to the height adjustment plate. The end of the first locking member is threadedly connected to the height adjustment plate, and the end of the second locking member is threadedly connected to the height adjustment plate.

[0012] Preferably, the first locking member includes a first mounting rod and a first rotating head. One end of the first mounting rod is fixedly connected to the first rotating head, and the other end of the first mounting rod passes through the connecting frame and is rotatably connected to the connecting frame. The end of the first mounting rod that passes through the connecting frame is threadedly connected to the mounting frame. The first rotating head can contact the connecting frame for locking the connecting frame.

[0013] Preferably, the second locking element includes a second mounting rod and a second rotating head. One end of the second mounting rod is fixedly connected to the second rotating head, and the other end of the second mounting rod passes through the arc-shaped groove and is slidably connected to the arc-shaped groove. The end of the second mounting rod passing through the arc-shaped groove is threadedly connected to the mounting bracket. The second rotating head can contact the connecting bracket for locking the connecting bracket.

[0014] Preferably, a limiting member is provided on one side of the upper end of the mounting bracket. The limiting member is detachably connected to the mounting bracket and is configured to cooperate with the connecting bracket. The limiting member is used to limit the initial position of the connecting bracket.

[0015] Preferably, the limiting component includes an L-shaped limiting block and a contact rod. One end of the L-shaped limiting block is detachably connected to one side of the upper end of the mounting bracket by bolts, and the other end of the L-shaped limiting block extends to the top of the connecting bracket. A fixing nut is fixedly provided on the end of the L-shaped limiting block located above the connecting bracket. One end of the contact rod passes through the fixing nut and through the L-shaped limiting block. The contact rod is threadedly connected to the fixing nut and slidably connected to the L-shaped limiting block. The end of the contact rod can contact the top of the connecting bracket.

[0016] Preferably, the external powder spraying assembly includes an installation body and a discharge structure. The bottom of the installation body is provided with a first installation groove and a second installation groove. The first installation groove is located above the second installation groove and communicates with it. The first installation groove is provided with a first installation block and a second installation block, which are detachably connected to the first installation groove. The second installation groove is provided with a third installation block, which is detachably connected to the second installation groove. The top of the installation body is provided with a material supply channel that extends into the first installation groove. The first installation block is configured to cooperate with the material supply channel and has a material supply port communicating with the material supply channel. The top of the installation body is provided with a fixing groove that extends into the first installation groove. The second installation block is configured to cooperate with the fixing groove and has a third installation groove communicating with the fixing groove. One end of the discharge structure is located in the fixing groove and extends into the third installation groove.

[0017] Preferably, the discharge structure includes a high-voltage generator, a conductive spring sleeve, a conductive contact, and a pair of discharge needles. One end of the high-voltage generator is inserted into a fixed groove, and the high-voltage generator is detachably connected to the mounting body by bolts. The conductive spring sleeve is disposed in the fixed groove, with one end contacting the end of the high-voltage generator. The conductive contact is disposed in a third mounting groove, with one end contacting the other end of the conductive spring sleeve. The pair of discharge needles are fixedly disposed at the other end of the conductive contact. The pair of discharge needles penetrate the second mounting block and extend into the second mounting groove. The third mounting block is provided with a discharge slot that cooperates with the discharge needles. The discharge needles extend into the discharge slot. A guide block is fixedly disposed at one end of the discharge slot. The guide block is cooperated with the feed port for adjusting the powder spray angle. The third mounting block is provided with a discharge port that communicates with the discharge slot.

[0018] Preferably, the top of the mounting body is provided with an air intake channel, which extends into the first mounting groove. The second mounting block is provided with an air passage that cooperates with the air intake channel. One end of the air passage is connected to the air intake channel, and the other end extends to cooperate with a pair of discharge needles. Each of the pair of discharge needles and the second mounting block is provided with an air outlet. One end of the air outlet is connected to the air passage, and the other end is connected to the discharge groove opening. The discharge needle is located in the air outlet.

[0019] Preferably, the top of the mounting body is provided with a pair of recycling channels, which run through the mounting body from top to bottom. The bottom of the mounting body is provided with a fixed mounting block, which is detachably connected to the mounting body by bolts. The end of the third mounting block with a discharge port runs through the fixed mounting block. The fixed mounting block is provided with two sets of filter holes, which are located at both ends of the discharge port and are connected to the recycling channels.

[0020] Preferably, a pair of guide members are provided on both sides of the fixed mounting block. The guide members include a fixed seat and a guide plate. The fixed seat is detachably connected to the fixed mounting block by bolts. The guide plate is inclinedly arranged at the bottom of the fixed seat and is respectively configured to cooperate with the filter hole and the discharge port. A pair of adjusting blocks are provided on the fixed mounting block. The pair of adjusting blocks are detachably connected to the fixed mounting block by bolts.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] In this invention, the first locking member acts as the central axis during rotation. When the angle of the external powder spraying assembly needs to be adjusted, the first and second locking members are loosened, and the connecting frame and the external powder spraying assembly are rotated, causing them to rotate around the first locking member as the center. During rotation, the second locking member can slide within the arc-shaped groove. The cooperation between the arc-shaped groove and the second locking member limits the rotation angle of the connecting frame, thereby allowing the external powder spraying assembly to be angled within a certain range. After adjusting to the appropriate angle, the first and second locking members are tightened to fix the connecting frame, ensuring that the external powder spraying assembly maintains a stable spraying angle during operation and accurately sprays charged powder. Compared to traditional external powder spraying mechanisms, this invention solves the problem of the current powder spraying head's angle and height being unadjustable, thus achieving a high-quality touch-up coating tape with uniform thickness, clear edges, and aesthetic appeal while also being corrosion-resistant. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a powder coating repair mechanism for external weld seams of a tank body, as described in this embodiment of the utility model. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of a powder coating repair mechanism for external weld seams of a tank body, as described in this embodiment of the utility model. Figure 2 ;

[0025] Figure 3 This is a partial exploded structural diagram of a powder coating repair mechanism for tank body welds as described in this embodiment of the utility model;

[0026] Figure 4 This is a cross-sectional structural schematic diagram of a tank body weld external powder coating repair mechanism as described in this utility model embodiment;

[0027] Figure 5 This is as described in the embodiments of this utility model. Figure 4 A magnified schematic diagram of the partial structure at point A in the middle;

[0028] Figure 6 This is a partial cross-sectional structural schematic diagram of a tank body weld external powder coating repair mechanism as described in this utility model embodiment;

[0029] Figure 7This is a partial structural diagram of the external powder spraying assembly described in this embodiment of the present invention. Figure 1 ;

[0030] Figure 8 This is a partial structural diagram of the external powder spraying assembly described in this embodiment of the present invention. Figure 2 ;

[0031] Explanation of reference numerals in the attached figures:

[0032] 10-Mounting component, 11-External powder spraying component, 12-Mounting bracket, 13-Connecting bracket, 14-First locking element, 15-Second locking element, 16-Arc groove, 17-First mounting rod, 18-First rotating head, 19-Second mounting rod, 20-Second rotating head, 21-Limiting element, 22-L-shaped limit block, 23-Contact rod, 24-Fixing nut, 25-Mounting body, 26-Discharge structure, 27-First mounting groove, 28-Second mounting groove, 29-First mounting block, 30-Second mounting block, 31-Third mounting block, 3 2-Feeding channel, 33-Feeding port, 34-Fixing groove, 35-Third mounting groove, 36-High voltage generator, 37-Conductive spring sleeve, 38-Conductive contact, 39-Discharge needle, 40-Discharge groove opening, 41-Guide block, 42-Discharge port, 43-Inlet channel, 44-Air passage, 45-Outlet, 46-Recovery channel, 47-Fixing mounting block, 48-Filter hole, 49-Guide, 50-Fixing seat, 51-Guide plate, 52-Adjusting block, 53-Height adjusting plate, 54-Threaded fixing block, 55-Threaded adjusting rod. Detailed Implementation

[0033] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0034] Example:

[0035] like Figures 1 to 2 As shown, in order to solve the above problems, this embodiment discloses a powder coating repair mechanism for tank body welds, including:

[0036] Mounting component 10 is used to mount external powder spraying component 11;

[0037] External powder spraying assembly 11 is used to spray out charged powder and recover excess powder.

[0038] The mounting assembly 10 includes a mounting bracket 12, a connecting bracket 13, a first locking member 14, and a second locking member 15. The connecting bracket 13 has an arc-shaped groove 16. One end of the connecting bracket 13 with the arc-shaped groove 16 is rotatably mounted on the mounting bracket 12. The external powder spraying assembly 11 is mounted on the other end of the connecting bracket 13. The first locking member 14 is mounted on the connecting bracket 13 and located at one end of the arc-shaped groove 16. One end of the first locking member 14 passes through the connecting bracket 13 and is rotatably connected to the connecting bracket 13. The end of the first locking member 14 is threadedly connected to the mounting bracket 12. One end of the second locking member 15 passes through the arc-shaped groove 16 and is slidably connected to the arc-shaped groove 16. The end of the second locking member 15 is threadedly connected to the mounting bracket 12.

[0039] In this invention, the first locking member 14 acts as the central axis during rotation. When the angle of the external powder spraying assembly 11 needs to be adjusted, the first locking member 14 and the second locking member 15 are loosened, and the connecting frame 13 and the external powder spraying assembly 11 are rotated so that they rotate around the first locking member 14 as the center. During rotation, the second locking member 15 can slide within the arc-shaped groove 16. The cooperation between the arc-shaped groove 16 and the second locking member 15 is used to limit the rotation angle of the connecting frame 13, thereby allowing the external powder spraying assembly 11 to be angled within a certain range. After adjusting to the appropriate angle, the first locking member 14 and the second locking member 15 are tightened to fix the connecting frame 13, ensuring that the external powder spraying assembly 11 maintains a stable spraying angle during operation and accurately sprays charged powder. Compared with traditional external powder spraying mechanisms, this invention solves the problem that the angle and height of the current powder spraying head are not adjustable, thereby achieving a high-quality touch-up coating tape with uniform thickness, clear edges, and both aesthetic appeal and corrosion resistance.

[0040] To facilitate adjustment of the powder spraying height and prevent powder scattering, this embodiment is modified from the above embodiment. The difference from the above embodiment is that the mounting frame 12 is provided with a height adjustment plate 53, which is slidably connected to the mounting frame 12. A threaded fixing block 54 is provided on one side of the height adjustment plate 53, which is fixedly connected to the height adjustment plate 53. A threaded adjusting rod 55 is provided on the threaded fixing block 54 and is threadedly connected to the threaded fixing block 54. One end of the threaded adjusting rod 55 is threadedly connected to the mounting frame 12, and one end of the connecting frame 13 is rotatably connected to the height adjustment plate 53. The end of the first locking member 14 is threadedly connected to the height adjustment plate 53, and the end of the second locking member 15 is threadedly connected to the height adjustment plate 53.

[0041] During use, the height of the connecting frame 13 can be adjusted by rotating the threaded adjusting rod 55. This ensures that the external powder spraying assembly 11 remains parallel to the can body during operation. At the same time, the height of the external powder spraying and coating mechanism can be precisely adjusted by adjusting the height of the height adjusting plate 53, so that the guide plate 51 applies appropriate pressure to the can body to prevent powder from scattering.

[0042] like Figure 3 As shown, in order to facilitate the adjustment of the angle of the external powder spraying assembly 11, this embodiment is modified based on the above embodiment. The difference from the above embodiment is that the first locking member 14 includes a first mounting rod 17 and a first rotating head 18. One end of the first mounting rod 17 is fixedly connected to the first rotating head 18, and the other end of the first mounting rod 17 passes through the connecting frame 13 and is rotatably connected to the connecting frame 13. The end of the first mounting rod 17 that passes through the connecting frame 13 is threadedly connected to the mounting frame 12. The first rotating head 18 can contact the connecting frame 13 for locking the connecting frame 13.

[0043] The second locking member 15 includes a second mounting rod 19 and a second rotating head 20. One end of the second mounting rod 19 is fixedly connected to the second rotating head 20, and the other end of the second mounting rod 19 passes through the arc groove 16 and is slidably connected to the arc groove 16. The end of the second mounting rod 19 passing through the arc groove 16 is threadedly connected to the mounting bracket 12. The second rotating head 20 can contact the connecting bracket 13 for locking the connecting bracket 13.

[0044] By setting the first locking member 14 as the first mounting rod 17 and the first rotating head 18, and setting the second locking member 15 as the second mounting rod 19 and the second rotating head 20, in use, the first locking member 14 and the second locking member 15 can be tightened or loosened simply by rotating the first rotating head 18 and the second rotating head 20, thereby achieving quick adjustment and quick fixation of the connecting frame 13 and the external powder spraying assembly 11.

[0045] like Figure 1 , Figure 3 As shown, in order to facilitate limiting the initial position of the connecting frame 13, this embodiment is modified based on the above embodiment. The difference from the above embodiment is that a limiting member 21 is provided on one side of the upper end of the mounting frame 12. The limiting member 21 is detachably connected to the mounting frame 12 and is configured to cooperate with the connecting frame 13. The limiting member 21 is used to limit the initial position of the connecting frame 13.

[0046] The limiting component 21 includes an L-shaped limiting block 22 and a contact rod 23. One end of the L-shaped limiting block 22 is detachably connected to one side of the upper end of the mounting bracket 12 by bolts. The other end of the L-shaped limiting block 22 extends above the connecting bracket 13. A fixing nut 24 is fixedly provided on the end of the L-shaped limiting block 22 located above the connecting bracket 13. One end of the contact rod 23 passes through the fixing nut 24 and through the L-shaped limiting block 22. The contact rod 23 is threadedly connected to the fixing nut 24 and slidably connected to the L-shaped limiting block 22. The end of the contact rod 23 can contact the top of the connecting bracket 13.

[0047] In the initial position, the top of the connecting bracket 13 can contact the end of the contact rod 23, thereby achieving a limit.

[0048] like Figures 3 to 7 As shown, to facilitate the modular installation of the external powder spraying assembly 11, this embodiment modifies the above embodiment. The difference lies in that the external powder spraying assembly 11 includes a mounting body 25 and a discharge structure 26. The bottom of the mounting body 25 is provided with a first mounting groove 27 and a second mounting groove 28. The first mounting groove 27 is located above and communicates with the second mounting groove 28. A first mounting block 29 and a second mounting block 30 are provided within the first mounting groove 27. The first mounting block 29 and the second mounting block 30 are detachably connected to the first mounting groove 27. A third mounting block 31 is provided within the second mounting groove 28. The third mounting block 31 is detachably connected to the second mounting groove 28. The top of the mounting body 25 is provided with a feeding channel 32, which extends into the first mounting groove 27. The first mounting block 29 is configured to cooperate with the feeding channel 32. The first mounting block 29 is provided with a feeding port 33 that communicates with the feeding channel 32. The top of the mounting body 25 is provided with a fixing groove 34, which extends into the first mounting groove 27. The second mounting block 30 is configured to cooperate with the fixing groove 34. The second mounting block 30 is provided with a third mounting groove 35 that communicates with the fixing groove 34. One end of the discharge structure 26 is set in the fixing groove 34 and extends into the third mounting groove 35.

[0049] The external powder spraying assembly 11 is configured as the mounting body 25 and the discharge structure 26. Modular installation of each structure is achieved by setting a first mounting groove 27 and a second mounting groove 28, with a detachable first mounting block 29 and a second mounting block 30 installed in the first mounting groove 27, and a detachable third mounting block 31 installed in the second mounting groove 28. Simultaneously, the coordinated arrangement of the material supply channel 32 and the material supply port 33 facilitates material supply.

[0050] To facilitate the charging of powder entering through the feed port 33, this embodiment modifies the previous embodiment. The difference lies in that the discharge structure 26 includes a high-voltage generator 36, a conductive spring sleeve 37, conductive contacts 38, and a pair of discharge needles 39. One end of the high-voltage generator 36 is inserted into the fixing groove 34, and the high-voltage generator 36 is detachably connected to the mounting body 25 via bolts. The conductive spring sleeve 37 is disposed in the fixing groove 34, with one end contacting the end of the high-voltage generator 36. The conductive contacts 38 are disposed in the third... Inside the mounting groove 35, one end of which is in contact with the other end of the conductive spring sleeve 37, a pair of discharge needles 39 are fixedly disposed at the other end of the conductive contact 38. The pair of discharge needles 39 penetrate the second mounting block 30 and extend into the second mounting groove 28. The third mounting block 31 is provided with a discharge slot 40 that cooperates with the discharge needles 39. The discharge needles 39 extend into the discharge slot 40. One end of the discharge slot 40 is fixedly provided with a guide block 41. The guide block 41 is cooperated with the feed port 33 and is used to adjust the powder spraying angle. The third mounting block 31 is provided with a discharge port 42 that communicates with the discharge slot 40.

[0051] In operation, a high-voltage generator 36 generates voltage, which is then transmitted to a pair of discharge needles 39 via a conductive spring sleeve 37 and conductive contacts 38. After the powder enters the discharge slot 40 through the feed port 33, it is guided by a guide block 41 to the pair of discharge needles 39, where it is discharged, thus achieving the powder charging process. The charged powder can then be ejected from the discharge port 42. The conductive spring sleeve 37 and conductive contacts 38 provide a stable electrical connection and improve the powder charging efficiency.

[0052] To prevent powder from adhering to the pair of discharge needles 39 and affecting the discharge effect, this embodiment is modified based on the above embodiment. The difference from the above embodiment is that the top of the mounting body 25 is provided with an air inlet channel 43, which extends into the first mounting groove 27. The second mounting block 30 is provided with an air passage 44 that cooperates with the air inlet channel 43. One end of the air passage 44 is connected to the air inlet channel 43, and the other end extends to cooperate with the pair of discharge needles 39. Each of the pair of discharge needles 39 and the second mounting block 30 is provided with an air outlet 45. One end of the air outlet 45 is connected to the air passage 44, and the other end is connected to the discharge groove opening 40. The discharge needles 39 are located in the air outlet 45.

[0053] In use, compressed air is connected to the inlet air passage 43. The compressed air enters the air passage 44 through the inlet air passage 43, then enters the outlet air passage 45, and is ejected from the outlet air passage 45. The discharge needle 39 is located inside the outlet air passage 45. When the gas is ejected from the outlet air passage 45, it can blow away the powder at the discharge needle 39, thereby preventing the powder from adhering to the pair of discharge needles 39. At the same time, it can also disperse the powder so that it combines with the charge more evenly.

[0054] To facilitate the recycling of excess powder, this embodiment is modified from the above embodiment. The difference from the above embodiment is that the top of the mounting body 25 is provided with a pair of recycling channels 46, which run through the mounting body 25 from top to bottom. The bottom of the mounting body 25 is provided with a fixed mounting block 47, which is detachably connected to the mounting body 25 by bolts. One end of the third mounting block 31 with a discharge port 42 passes through the fixed mounting block 47. The fixed mounting block 47 is provided with two sets of filter holes 48, which are located at both ends of the discharge port 42 and are connected to the recycling channels 46.

[0055] During use, the powder is sprayed out from the discharge port 42. Powder that does not adhere to the workpiece can enter the recycling channel 46 through the filter hole 48 and be recycled.

[0056] like Figures 7 to 8 As shown, in order to facilitate the adjustment of the powder spraying width and the powder spraying quality, this embodiment is modified based on the above embodiment. The difference from the above embodiment is that a pair of guide members 49 are provided on both sides of the fixed mounting block 47. The guide member 49 includes a fixed seat 50 and a guide plate 51. The fixed seat 50 is detachably connected to the fixed mounting block 47 by bolts. The guide plate 51 is inclinedly arranged at the bottom of the fixed seat 50 and is respectively matched with the filter hole 48 and the discharge port 42. A pair of adjusting blocks 52 are provided on the fixed mounting block 47. The pair of adjusting blocks 52 are detachably connected to the fixed mounting block 47 by bolts.

[0057] The guide plate 51 in the pair of guide members 49 can effectively adjust the powder spraying quality of the spraying width. At the same time, the pair of adjusting blocks 52 can enhance the contact with the workpiece, thereby further improving the powder spraying quality.

[0058] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A powder coating repair mechanism for tank body weld seams, characterized in that, include: Mounting component (10) is used to mount the external powder spraying component (11); External powder spraying assembly (11) is used to spray charged powder and recover excess powder; The mounting assembly (10) includes a mounting bracket (12), a connecting bracket (13), a first locking member (14), and a second locking member (15). The connecting bracket (13) has an arc-shaped groove (16). One end of the connecting bracket (13) with the arc-shaped groove (16) is rotatably mounted on the mounting bracket (12). The external powder spraying assembly (11) is mounted on the other end of the connecting bracket (13). The first locking member (14) is mounted on the connecting bracket (13) and located at one end of the arc-shaped groove (16). One end of the first locking member (14) passes through the connecting bracket (13) and is rotatably connected to the connecting bracket (13). The end of the first locking member (14) is threadedly connected to the mounting bracket (12). One end of the second locking member (15) passes through the arc-shaped groove (16) and is slidably connected to the arc-shaped groove (16). The end of the second locking member (15) is threadedly connected to the mounting bracket (12). The mounting bracket (12) is provided with a height adjustment plate (53), which is slidably connected to the mounting bracket (12). A threaded fixing block (54) is provided on one side of the height adjustment plate (53), which is fixedly connected to the height adjustment plate (53). A threaded adjusting rod (55) is provided on the threaded fixing block (54), which is set on the threaded fixing block (54) and threadedly connected to the threaded fixing block (54). One end of the threaded adjusting rod (55) is threadedly connected to the mounting bracket (12), and one end of the connecting bracket (13) is rotatably connected to the height adjustment plate (53). The end of the first locking member (14) is threadedly connected to the height adjustment plate (53), and the end of the second locking member (15) is threadedly connected to the height adjustment plate (53).

2. The powder coating repair mechanism for tank body welds according to claim 1, characterized in that, The first locking member (14) includes a first mounting rod (17) and a first rotating head (18). One end of the first mounting rod (17) is fixedly connected to the first rotating head (18), and the other end of the first mounting rod (17) passes through the connecting frame (13) and is rotatably connected to the connecting frame (13). The end of the first mounting rod (17) that passes through the connecting frame (13) is threadedly connected to the mounting frame (12). The first rotating head (18) can contact the connecting frame (13) for locking the connecting frame (13).

3. The powder coating repair mechanism for tank body welds according to claim 2, characterized in that, The second locking member (15) includes a second mounting rod (19) and a second rotating head (20). One end of the second mounting rod (19) is fixedly connected to the second rotating head (20), and the other end of the second mounting rod (19) passes through the arc groove (16) and is slidably connected to the arc groove (16). The end of the second mounting rod (19) passing through the arc groove (16) is threadedly connected to the mounting bracket (12). The second rotating head (20) can contact the connecting bracket (13) for locking the connecting bracket (13).

4. The powder coating repair mechanism for tank body welds according to claim 3, characterized in that, A limiting member (21) is provided on one side of the upper end of the mounting bracket (12). The limiting member (21) is detachably connected to the mounting bracket (12) and is configured to cooperate with the connecting bracket (13). The limiting member (21) is used to limit the initial position of the connecting bracket (13).

5. The powder coating repair mechanism for tank body welds according to claim 4, characterized in that, The limiting component (21) includes an L-shaped limiting block (22) and a contact rod (23). One end of the L-shaped limiting block (22) is detachably connected to one side of the upper end of the mounting bracket (12) by bolts. The other end of the L-shaped limiting block (22) extends to the top of the connecting bracket (13). A fixing nut (24) is fixedly provided on the end of the L-shaped limiting block (22) located above the connecting bracket (13). One end of the contact rod (23) passes through the fixing nut (24) and through the L-shaped limiting block (22). The contact rod (23) is threadedly connected to the fixing nut (24). The contact rod (23) is slidably connected to the L-shaped limiting block (22). The end of the contact rod (23) can contact the top of the connecting bracket (13).

6. A powder coating repair mechanism for tank body welds according to claim 1 or 5, characterized in that, The external powder spraying assembly (11) includes a mounting body (25) and a discharge structure (26). The bottom of the mounting body (25) is provided with a first mounting groove (27) and a second mounting groove (28). The first mounting groove (27) is located above the second mounting groove (28) and communicates with the second mounting groove (28). The first mounting groove (27) is provided with a first mounting block (29) and a second mounting block (30). The first mounting block (29) and the second mounting block (30) are detachably connected to the first mounting groove (27). The second mounting groove (28) is provided with a third mounting block (31). The third mounting block (31) is detachably connected to the second mounting groove (28). The mounting body (25) A feeding channel (32) is provided at the top, extending into the first mounting groove (27). A first mounting block (29) is provided in conjunction with the feeding channel (32). A feeding port (33) communicating with the feeding channel (32) is provided on the first mounting block (29). A fixing groove (34) is provided at the top of the mounting body (25), extending into the first mounting groove (27). A second mounting block (30) is provided in conjunction with the fixing groove (34). A third mounting groove (35) communicating with the fixing groove (34) is provided on the second mounting block (30). One end of the discharge structure (26) is provided in the fixing groove (34) and extends into the third mounting groove (35).

7. A powder coating repair mechanism for tank body welds according to claim 6, characterized in that, The discharge structure (26) includes a high-voltage generator (36), a conductive spring sleeve (37), a conductive contact (38), and a pair of discharge needles (39). One end of the high-voltage generator (36) is inserted into the fixing groove (34), and the high-voltage generator (36) is detachably connected to the mounting body (25) by bolts. The conductive spring sleeve (37) is set in the fixing groove (34), and one end is in contact with the end of the high-voltage generator (36). The conductive contact (38) is set in the third mounting groove (35), and one end is in contact with the other end of the conductive spring sleeve (37). The pair of discharge needles (39) A pair of discharge needles (39) are fixedly installed at the other end of the conductive contact (38), penetrating the second mounting block (30) and extending into the second mounting groove (28). The third mounting block (31) is provided with a discharge slot (40) that cooperates with the discharge needles (39). The discharge needles (39) extend into the discharge slot (40). A guide block (41) is fixedly provided at one end of the discharge slot (40). The guide block (41) is cooperated with the feed port (33) and is used to adjust the powder spraying angle. The third mounting block (31) is provided with a discharge port (42) that communicates with the discharge slot (40).

8. The powder coating repair mechanism for tank body welds according to claim 7, characterized in that, The top of the mounting body (25) is provided with an air intake channel (43), which extends into the first mounting groove (27). The second mounting block (30) is provided with an air passage (44) that cooperates with the air intake channel (43). One end of the air passage (44) is connected to the air intake channel (43), and the other end extends to cooperate with a pair of discharge needles (39). The connection between the pair of discharge needles (39) and the second mounting block (30) is provided with an air outlet (45). One end of the air outlet (45) is connected to the air passage (44), and the other end is connected to the discharge groove (40). The discharge needles (39) are located inside the air outlet (45).

9. A powder coating repair mechanism for tank body welds according to claim 8, characterized in that, The top of the mounting body (25) is provided with a pair of recycling channels (46), which run through the mounting body (25) from top to bottom. The bottom of the mounting body (25) is provided with a fixed mounting block (47), which is detachably connected to the mounting body (25) by bolts. The third mounting block (31) has a discharge port (42) at one end that runs through the fixed mounting block (47). The fixed mounting block (47) is provided with two sets of filter holes (48), which are located at both ends of the discharge port (42) and are connected to the recycling channels (46).

10. A powder coating repair mechanism for tank body welds according to claim 9, characterized in that, A pair of guide members (49) are provided on both sides of the fixed mounting block (47). The guide member (49) includes a fixed seat (50) and a guide plate (51). The fixed seat (50) is detachably connected to the fixed mounting block (47) by bolts. The guide plate (51) is inclinedly set at the bottom of the fixed seat (50) and is respectively matched with the filter hole (48) and the discharge port (42). A pair of adjusting blocks (52) are provided on the fixed mounting block (47). The pair of adjusting blocks (52) are detachably connected to the fixed mounting block (47) by bolts.

Images