Outdoor advertising board frame spraying device

Abstract

The invention relates to the technical field of frame spraying, in particular to an outdoor advertising board frame spraying device which comprises a spraying frame and a spraying tank, and the spraying tank is mounted on the outer side of the spraying frame; front-and-back spraying pipes are arranged at the left end and the right end of the upper portion in the spraying frame, a first telescopic pipe is communicated between the two front-and-back spraying pipes, the lower ends of the front-and-back spraying pipes are communicated with first conveying pipes, the lower ends of the first conveying pipes are communicated with first spraying pipes, and the left portion and the right portion of the inner periphery of each first spraying pipe are communicated with first side spraying nozzles. All parts of the frame can be rapidly and comprehensively sprayed only by changing the clamping part of the frame once and through mutual cooperation of the multiple first side sprayers, the multiple first front sprayers, the multiple second side sprayers and the multiple second front sprayers, the trouble of overturning the frame is effectively omitted, the placing position of the frame does not need to be repeatedly adjusted, and the production efficiency is improved. And the spraying efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of frame spraying, in particular to a frame spraying device for an outdoor billboard. Background Art

[0002] Billboard frames are used to decorate and protect the edges of billboards. They not only enhance the overall aesthetics of the billboard but also reinforce and protect its content. Billboard frames are widely used in various types of billboards, such as indoor ultra-thin LED light boxes, outdoor light box advertisements, and display panels. They are commonly found along roads and streets, as well as in public places such as cinemas, exhibitions, trade shows, downtown commercial areas, train stations, airports, docks, and parks.

[0003] The existing billboard frames have the following problems during the spraying process. Since the frames are generally rectangular, and the existing spraying devices are mostly single-head, in order to spray every position of the frame, it is often necessary to flip the frame over so that the top and bottom of the frame can be sprayed, which makes the spraying work troublesome. Moreover, the frame often needs to be clamped and fixed. Not only is the clamped and fixed position easily blocked and a blind spot for spraying appears, but also blind spots for spraying often appear on the inner and outer sides. Therefore, it is often necessary to repeatedly adjust the placement of the frame or calibrate the spraying position of the nozzle, which makes the spraying of the frame not only troublesome but also inefficient. Summary of the Invention

[0004] The present invention provides a spraying device for an outdoor billboard frame, which is beneficial to reducing spraying troubles and improving spraying efficiency.

[0005] In order to solve the problems of the prior art, the present invention discloses an outdoor billboard frame spraying device, an outdoor billboard frame spraying device, comprising a spraying rack and a spraying tank, wherein the spraying tank is installed outside the spraying rack; The left and right ends of the upper inner portion of the spray rack are both provided with front and rear spray pipes, a first telescopic pipe is connected between the two front and rear spray pipes, and the lower ends of the front and rear spray pipes are both connected with a first delivery pipe, the lower ends of the first delivery pipes are both connected with the first spray pipe, the left and right parts of the inner periphery of the first spray pipe are both connected with the first side nozzles, and the upper and lower parts of the inner periphery of the first spray pipe are both connected with the first front nozzle, a first annular clamp is sleeved on the outer periphery of the first front nozzle, a first sliding plate is fixed to one side of the first annular clamp, and a first clamping drive assembly is provided outside the first spray pipe; A first concave frame is fixed at the top end of the spray frame, a sliding block is slidably connected to the first concave frame, and a front-back sliding drive assembly is provided in the first concave frame; A first spacing adjustment component is provided above the first telescopic tube; A second concave frame is provided below the first telescopic tube, and two left and right spray pipes distributed front to back are provided below the second concave frame, the lower ends of the left and right spray pipes are connected to the second delivery pipe, the lower ends of the second delivery pipes are connected to the second spray pipe, the front and rear parts of the inner periphery of the second spray pipe are connected to the second side spray heads, and the upper and lower ends of the inner periphery of the second spray pipe are connected to the second front spray head, the outer periphery of the second front spray head is sleeved with a second annular clamp, a second sliding plate is fixed to one side of the second annular clamp, and a second clamping drive assembly is provided outside the second spray pipe; A second spacing adjustment component is provided above the second telescopic tube; A left-right sliding drive assembly is provided below the first telescopic tube.

[0006] Furthermore, the first clamping drive assembly includes a first fixed plate, a first forward and reverse motor and a first bidirectional screw rod. The first fixed plates are provided with two pieces and are distributed up and down and are fixed on the outside of the first spray pipe. The first forward and reverse motor is fixed on the inside of one of the fixed plates. One end of the first bidirectional screw rod is connected to the power end of the first forward and reverse motor, and the other end of the first bidirectional screw rod is rotatably connected to the inside of the other fixed plate. The first sliding plate is threadedly connected to the first bidirectional screw rod, and the first sliding plate is slidably connected to the first spray pipe.

[0007] Furthermore, the front and rear sliding drive assembly includes a first forward and reverse motor and a first driving screw, the first forward and reverse motor is fixed to the rear end of the first concave frame, one end of the first driving screw is connected to the power end of the first forward and reverse motor, and the other end of the first driving screw is rotatably connected to the front end of the first concave frame, and the sliding block is threadedly sleeved with the first driving screw.

[0008] Furthermore, the first spacing adjustment assembly includes a first adjustment block, a guide rod and a first bidirectional screw. The first adjustment block is provided with two pieces and is fixed one by one to the upper end of the front and rear spray pipes. The guide rod is provided with two pieces and is respectively fixed to the left and right ends of the sliding block, and the guide rods both slide through the first adjustment block on the same side. The first bidirectional screw thread passes through the two first adjustment blocks, and the first bidirectional screw rotates through the sliding block.

[0009] Furthermore, the second clamping drive assembly includes a second fixed plate, a second forward and reverse motor and a second bidirectional screw. The second fixed plates are provided with two pieces and are distributed up and down and are fixed on the outside of the second spray pipe. The second forward and reverse motor is fixed on the inside of one of the second fixed plates. One end of the second bidirectional screw is connected to the power end of the second forward and reverse motor, and the other end of the second bidirectional screw is rotatably connected to the inside of the other second fixed plate. The second sliding plate is threadedly connected to the second bidirectional screw, and the second sliding plate is slidably connected to the second spray pipe.

[0010] Furthermore, the second spacing adjustment assembly includes a second adjustment block, a sliding rod and a second bidirectional screw. The second adjustment block is provided with two pieces and is fixed one by one to the upper ends of the left and right spray pipes. The sliding rod is fixed in the second concave frame. The second adjustment blocks are slidably connected to the sliding rod. The second bidirectional screw rotates from front to back and passes through the second concave frame, and the second adjustment blocks are threadedly connected to the second bidirectional screw.

[0011] Furthermore, the left and right sliding drive assembly includes a guide shaft, a second forward and reverse motor and a second driving screw. There are two guide shafts, and the two guide shafts are distributed front and back and are fixed in the spray frame. The second concave frame is slidably connected to the guide shaft, the second forward and reverse motor is fixed to the right wall inside the spray frame, one end of the second driving screw is connected to the power end of the second forward and reverse motor, the second concave frame is threadedly connected to the second driving screw, and the other end of the second driving screw is rotatably connected to the left wall inside the spray frame.

[0012] Furthermore, the spray tank is connected to a delivery pump, the delivery port of the delivery pump is connected to a discharge pipe, the upper part of the discharge pipe is connected to a first delivery valve, the first delivery valve is connected to the adjacent front and rear spray pipes with a telescopic hose, and the telescopic hose runs through the spray rack.

[0013] Furthermore, the right end of the discharge pipe is connected to a second delivery valve, and a second telescopic hose is connected between the second delivery valve and the adjacent left and right spray pipes, and the second telescopic hose passes through the spray frame.

[0014] Compared with the prior art, the present invention achieves the following beneficial effects: 1. By placing the frame inside the first spray tube and the second spray tube, the frame can be pre-supported by the cooperation of the first spray tube and the second spray tube to prevent the frame from falling. Combined with the work of the first clamping drive assembly or the second clamping drive assembly, it is convenient to drive the first ring clamp or the second ring clamp to clamp the frame in position, which is conducive to aligning the first side nozzle, the first front nozzle, the second side nozzle and the second front nozzle exactly with each position to be sprayed on the frame. There is no need to repeatedly calibrate the spray position of the nozzle, which saves the calibration trouble and helps improve the spraying efficiency. 2. When the front and rear parts of the frame are clamped and fixed by the second annular clamp, the left and right parts of the frame are completely exposed, thereby facilitating the first side spray head and the first front spray head to fully spray the periphery of the left and right parts of the frame through the operation of the front and rear sliding drive assembly, without the need for flipping the spraying, and with high spraying efficiency; 3. When the left and right parts of the frame are clamped and fixed by the first annular clamp, the front and rear parts of the frame are completely exposed, so that the second side nozzle and the second front nozzle are driven by the left and right sliding drive components to fully spray the periphery of the front and rear parts of the frame. There is no need to flip the spray, and the spraying efficiency is high. In summary, it is only necessary to change the clamping position of the frame once, and through the cooperation of multiple first side nozzles, first front nozzles, second side nozzles and second front nozzles, all parts of the frame can be quickly and fully sprayed, which effectively saves the trouble of flipping the frame and there is no need to repeatedly adjust the placement of the frame, and the spraying efficiency is greatly improved. 4. Through the operation of the first spacing adjustment component, it is convenient to adjust the left and right spraying spacing between the two first spray tubes, thereby facilitating the spraying processing of frames of various left and right widths, and through the operation of the first spacing adjustment component, it is convenient to adjust the front and rear spraying spacing between the two second spray tubes, thereby facilitating the spraying processing of frames of various front and rear lengths. In summary, it is convenient to spray frames of various sizes, effectively ensuring the applicability of the spraying device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the front and rear spray pipe structures of the present invention; Figure 3 This is a schematic side view of the first concave frame structure of the present invention; Figure 4 This is a schematic structural diagram of the first spray pipe of the present invention; Figure 5 This is a schematic diagram of the top view of the first ring clamp of the present invention; Figure 6 This is a schematic structural diagram of the second spray pipe of the present invention; Figure 7 It is a side view of the second concave frame structure of the present invention; Figure 8 This is a side structural schematic diagram of the second spray pipe of the present invention; Figure 9 This is a schematic diagram of the top view of the second ring clamp of the present invention; Figure 10 This is a schematic diagram of the spraying stand of the present invention when viewed from above; Figure 11 This is a schematic diagram of the overall spraying working structure of the present invention; Figure 12 This is a schematic diagram of the spraying frame structure after the frame of the present invention is installed, viewed from above.

[0016] Figure 1-12Middle: spray rack 1, paint tank 2, front and rear spray pipe 3, first telescopic pipe 4, first delivery pipe 5, first spray pipe 6, first side nozzle 7, first forward nozzle 8, first ring clamp 9, first sliding plate 10, first fixed plate 11, first forward and reverse motor 12, first bidirectional screw 13, first adjustment block 14, guide rod 15, first bidirectional screw 16, first concave frame 17, sliding block 18, first forward and reverse motor 19, first drive screw 20, second concave frame 21, second adjustment block 22, left and right spray Coating tube 23, second conveying tube 24, second spraying tube 25, second telescopic tube 26, sliding rod 27, second bidirectional screw 28, second side nozzle 29, second forward nozzle 30, second annular clamp 31, second fixed plate 33, second forward and reverse motor 34, second sliding plate 35, second bidirectional screw 36, guide shaft 37, second forward and reverse motor 38, second driving screw 39, conveying pump 40, discharge pipe 41, first conveying valve 42, telescopic hose 1 43, second conveying valve 44, telescopic hose 2 45. DETAILED DESCRIPTION

[0017] An outdoor billboard frame spraying device: like Figure 1-12The paint spraying device 1 is a kind of paint spraying device 1, and the paint spraying device 1 is a kind of paint spraying device 1. The paint spraying device 1 is a kind of paint spraying device 1. The paint spraying device 1 is a kind of paint spraying device 1. The paint spraying device 1 is a kind of paint spraying device 1. The paint spraying device 1 is a kind of paint spraying device 1. The outer periphery of the second spraying pipe 25 is provided with a second side nozzle 29, and the upper and lower ends of the inner periphery of the second spraying pipe 25 are connected to the second positive nozzle 30. The outer periphery of the second positive nozzle 30 is sleeved with a second annular clamp 31, and a second sliding plate 35 is fixed to one side of the second annular clamp 31. A second clamping drive assembly is provided outside the second spraying pipe 25. The second clamping drive assembly includes a second fixed plate 33, a second forward and reverse motor 34 and a second bidirectional screw rod 36. The second fixed plates 33 are provided with two pieces and are distributed up and down and are fixed to the outer side of the second spraying pipe 25. The second forward and reverse motor 34 is fixed to the inner side of one of the second fixed plates 33. One end of the second bidirectional screw rod 36 is connected to the power end of the second forward and reverse motor 34, and the other end of the second bidirectional screw rod 36 is rotatably connected to the inner side of the other second fixed plate 33. The second sliding plate 35 is threadedly sleeved with the second bidirectional screw rod 36, and the second sliding plate 35 is slidably sleeved with the second spraying pipe 25.

[0018] By placing the frame inside the first spray tube 6 and the second spray tube 25, the frame can be pre-supported by the cooperation of the first spray tube 6 and the second spray tube 25 to prevent the frame from falling. When the left and right parts of the frame need to be sprayed, the second bidirectional screw rod 36 is driven to rotate forward by the operation of the second forward and reverse motor 34. The second bidirectional screw rod 36 will drive the second sliding plate 35 to slide along the second spray tube 25, and make the upper and lower adjacent second sliding plates 35 approach each other. At the same time, the second sliding plate 35 drives the second ring clamp 31 to approach the frame until the second ring clamp 31 clamps the front and back parts of the frame, thereby exposing the left and right parts of the frame for spraying.

[0019] like Figure 1 、 2As shown in Figure 4, in this embodiment, the spray tank 2 is externally connected to a delivery pump 40, the delivery port of the delivery pump 40 is connected to a discharge pipe 41, the upper part of the discharge pipe 41 is connected to a first delivery valve 42, the first delivery valve 42 is connected to the adjacent front and rear spray pipes 3 by a telescopic hose 1 43, and the telescopic hose 1 43 passes through the spray frame 1, the right end of the discharge pipe 41 is connected to a second delivery valve 44, the second delivery valve 44 is connected to the adjacent left and right spray pipes 23 by a telescopic hose 2 45, and the telescopic hose 2 45 passes through the spray frame 1.

[0020] When the left and right parts of the frame are completely exposed, the delivery pump 40 works and pumps the paint in the spray tank into the discharge pipe 41. At this time, the second delivery valve 44 is closed and the first delivery valve 42 is opened. The paint is input into the telescopic hose 43, the front and rear spray pipes 3, the first telescopic pipe 4, the first delivery pipe 5, the first spray pipe 6, the first side nozzle 7 and the first main nozzle 8 through the first delivery valve 42. The first main nozzle 8 is located at the upper and lower parts of the frame, and the first side nozzle 7 is located inside and outside the frame. Therefore, through the cooperation of the first side nozzle 7 and the first main nozzle 8, it is beneficial to fully spray the outer periphery of the left and right parts of the frame.

[0021] like Figure 3 、 12 As shown, in this embodiment, a first concave frame 17 is fixed to the top end of the spray frame 1, a sliding block 18 is slidably connected to the first concave frame 17, and a front and rear sliding drive assembly is provided in the first concave frame 17, and the front and rear sliding drive assembly includes a first forward and reverse motor 19 and a first driving screw 20, the first forward and reverse motor 19 is fixed to the rear end of the first concave frame 17, one end of the first driving screw 20 is connected to the power end of the first forward and reverse motor 19, and the other end of the first driving screw 20 is rotatably connected to the front end of the first concave frame 17, the sliding block 18 is threadedly sleeved with the first driving screw 20, and a first spacing adjustment assembly is provided above the first telescopic tube 4.

[0022] In addition, the first forward and reverse motor 19 drives the first driving screw 20 to rotate back and forth, and the first driving screw 20 drives the sliding block 18 to slide back and forth along the first concave frame 17, so the sliding block 18 drives the first spacing adjustment component, the front and rear spray pipes 3, the first conveying pipe 5, the first spray pipe 6, the first front nozzle 8 and the first side nozzle 7 to move back and forth. At the same time, the front and rear spray pipes 3 will stretch or compress the telescopic hose 43, so it is beneficial to drive the first side nozzle 7 and the first front nozzle 8 to fully spray the outer periphery of the left and right parts of the frame through the work of the front and rear sliding drive component, without the need for flipping the spraying, and the spraying efficiency is high.

[0023] like Figure 4 、 6As shown in Figure 8, in this embodiment, the first clamping drive assembly includes a first fixed plate 11, a first forward and reverse motor 12 and a first bidirectional screw rod 13. The first fixed plate 11 is provided with two pieces and is distributed up and down and is fixed on the outside of the first spray pipe 6. The first forward and reverse motor 12 is fixed on the inside of one of the fixed plates 11. One end of the first bidirectional screw rod 13 is connected to the power end of the first forward and reverse motor 12, and the other end of the first bidirectional screw rod 13 is rotatably connected to the inside of the other fixed plate 11. The first sliding plate 10 is threadedly connected to the first bidirectional screw rod 13, and the first sliding plate 10 is slidably connected to the first spray pipe 6.

[0024] When the left and right parts of the frame are sprayed, the first bidirectional screw rod 13 is driven to rotate forward by the operation of the first forward and reverse motor 12, and the first bidirectional screw rod 13 will drive the first sliding plate 10 to slide along the first spray tube 6, and make the upper and lower adjacent first sliding plates 10 approach each other. At the same time, the first sliding plate 10 drives the first ring clamp 9 to approach the frame until the first ring clamp 9 clamps the left and right parts of the frame. Then, the second bidirectional screw rod 36 is driven to reverse by the operation of the second forward and reverse motor 34, and the second bidirectional screw rod 36 will drive the second sliding plate 35 to slide along the second spray tube 25, and make the upper and lower adjacent second sliding plates 35 move away from each other. At the same time, the second sliding plate 35 drives the second ring clamp 31 away from the frame until the front and back parts of the frame are completely exposed, thereby facilitating exposing the front and back parts of the frame for spraying.

[0025] like Figure 7 、 12 As shown, in this embodiment, a left and right sliding drive assembly is provided below the first telescopic tube 4, and the left and right sliding drive assembly includes a guide shaft 37, a second forward and reverse motor 38 and a second driving screw 39. Two guide shafts 37 are provided, and the two guide shafts 37 are distributed front and back and are fixed in the spray frame 1. The second concave frame 21 is slidably connected to the guide shaft 37, the second forward and reverse motor 38 is fixed to the right wall inside the spray frame 1, one end of the second driving screw 39 is connected to the power end of the second forward and reverse motor 38, the second concave frame 21 is threadedly connected to the second driving screw 39, and the other end of the second driving screw 39 is rotatably connected to the left wall inside the spray frame 1, and a second spacing adjustment assembly is provided above the second telescopic tube 26.

[0026] Under the premise that the front and rear parts of the frame are completely exposed, the second forward and reverse motor 38 drives the second driving screw 39 to move back and forth, and the second driving screw 39 drives the second concave frame 21 to slide back and forth left and right along the guide shaft 37. At the same time, the second concave frame 21 drives the second spacing adjustment component, the left and right spray pipes 23, the second delivery pipe 24, the second spray pipe 25, the second front nozzle 30 and the second side nozzle 29 to move back and forth left and right. At the same time, the left and right spray pipes 23 will stretch or compress the telescopic hose 2 45. At this time, the first delivery valve 42 is closed, and the second delivery valve 42 is closed. The valve 44 is open, so when the delivery pump 40 is working, the paint in the spray tank 2 will be delivered through the discharge pipe 41 to the telescopic hose 2 45, the left and right spray pipes 23, the second telescopic pipe 26, the second delivery pipe 24, the second spray pipe 25, the second main nozzle 30 and the second side nozzle 29. Since the second main nozzle 30 is aligned with the upper and lower parts of the frame, and the second side nozzle 29 is aligned with the inside and outside of the frame, when the second main nozzle 30 and the second side nozzle 29 move left and right, it is beneficial to fully spray the surrounding areas of the front and back parts of the frame without the need for flipping the spraying, and the spraying efficiency is high.

[0027] like Figure 4 、 6 As shown in Figure 8, in this embodiment, the first fixed plates 11 are provided with two and are distributed up and down and are fixed to the outside of the first spray pipe 6. The first forward and reverse motor 12 is fixed to the inside of one of the fixed plates 11. One end of the first bidirectional screw rod 13 is connected to the power end of the first forward and reverse motor 12, and the other end of the first bidirectional screw rod 13 is rotatably connected to the inside of the other fixed plate 11. The first sliding plate 10 is threadedly connected to the first bidirectional screw rod 13, and the first sliding plate 10 is slidably connected to the first spray pipe 6.

[0028] When the frame is sprayed, the first forward and reverse motor 12 drives the first bidirectional screw 13 to reverse, and the first bidirectional screw 13 drives the first sliding plate 10 to slide along the first spray tube 6, and makes the upper and lower adjacent first sliding plates 10 move away from each other. At the same time, the first sliding plate 10 drives the first ring clamp 9 away from the frame. At this time, the frame is not clamped, and the frame will be supported by the first spray tube 6 and the second spray tube 25, which can prevent the frame from falling directly. Then the sprayed frame can be easily taken out from the first spray tube 6 and the second spray tube 25.

[0029] In summary, by placing the frame inside the first spray tube 6 and the second spray tube 25, combined with the work of the first clamping drive assembly or the second clamping drive assembly, it is convenient to drive the first annular clamp 9 or the second annular clamp 31 to clamp the frame into position, so that the first side nozzle 7, the first positive nozzle 8, the second side nozzle 29 and the second positive nozzle 30 are exactly aligned with the various positions to be sprayed on the frame. There is no need to repeatedly calibrate the spraying position of the nozzle, which saves the trouble of calibration and helps to improve the spraying efficiency. Moreover, it is only necessary to change the clamping position of the frame once. Through the cooperation of multiple first side nozzles 7, the first positive nozzle 8, the second side nozzle 29 and the second positive nozzle 30, all parts of the frame can be quickly sprayed, which effectively saves the trouble of flipping the frame. Moreover, there is no need to repeatedly adjust the placement position of the frame, nor is there any need to repeatedly calibrate the spraying position of the nozzle, and the spraying efficiency is greatly improved.

[0030] like Figure 2 As shown, in this embodiment, the first spacing adjustment assembly includes a first adjustment block 14, a guide rod 15 and a first bidirectional screw 16. The first adjustment block 14 is provided with two pieces and is fixed one by one to the upper end of the front and rear spray pipes 3. The guide rod 15 is provided with two pieces and is respectively fixed to the left and right ends of the sliding block 18, and the guide rods 15 both slide through the first adjustment block 14 on the same side. The first bidirectional screw 16 threads through the two first adjustment blocks 14, and the first bidirectional screw 16 rotates through the sliding block 18.

[0031] When it is necessary to adjust the spraying spacing between the two first spraying pipes 6, the first spacing adjustment component works, that is, by screwing the first bidirectional screw 16, the first adjusting block 14 is driven to slide along the guide rod 15, and the two first adjusting blocks 14 are moved closer to or away from each other. In this process, the first adjusting block 14 will drive the front and rear spraying pipes 3, the first conveying pipe 5 and the first spraying pipe 6 to move together. When the two front and rear spraying pipes 3 approach or move away from each other, the first telescopic tube 4 will be compressed or stretched, thereby shortening or lengthening the spacing between the two first spraying pipes 6, which is conducive to conveniently adjusting the left and right spraying spacing between the two first spraying pipes 6, thereby facilitating the spraying processing of frames of various left and right widths.

[0032] like Figure 7 As shown, in this embodiment, the second spacing adjustment assembly includes a second adjustment block 22, a slide rod 27 and a second bidirectional screw 28. The second adjustment block 22 is provided with two pieces and is fixed to the upper ends of the left and right spray pipes 23 one by one. The slide rod 27 is fixed in the second concave frame 21. The second adjustment blocks 22 are all slidably connected with the slide rod 27. The second bidirectional screw 28 rotates from front to back and passes through the second concave frame 21, and the second adjustment blocks 22 are all threadedly connected with the second bidirectional screw 28.

[0033] When the spraying spacing between the two second spraying pipes 25 needs to be adjusted, the second spacing adjustment component works, that is, the second bidirectional screw 28 is screwed to drive the second adjusting block 22 to slide along the slide rod 27, and the two second adjusting blocks 22 are moved closer to or away from each other. In this process, the second adjusting block 22 will drive the left and right spraying pipes 23, the second conveying pipe 24 and the second spraying pipe 25 to move together. When the two left and right spraying pipes 23 are closer to or away from each other, the second telescopic pipe 26 will be compressed or stretched, thereby shortening or lengthening the spacing between the two second spraying pipes 25, which is conducive to conveniently adjusting the front and rear spraying spacing between the two second spraying pipes 25, thereby facilitating the spraying processing of frames of various front and rear lengths. In summary, since the left and right spacing of the two first spraying pipes 6 can be adjusted, and the front and rear spacing of the two second spraying pipes 25 can be adjusted, it is conducive to spraying processing of frames of various sizes, effectively ensuring the applicability of the spraying device.

Claims

1. A spraying device for an outdoor billboard frame, comprising a spraying frame (1) and a spraying tank (2), wherein the spraying tank (2) is mounted outside the spraying frame (1), and is characterized in that: The left and right ends of the upper inner portion of the spray rack (1) are both provided with front and rear spray pipes (3), a first telescopic pipe (4) is connected between the two front and rear spray pipes (3), and the lower ends of the front and rear spray pipes (3) are both connected with a first delivery pipe (5), the lower ends of the first delivery pipe (5) are both connected with a first spray pipe (6), the left and right parts of the inner periphery of the first spray pipe (6) are both connected with a first side nozzle (7), and the upper and lower parts of the inner periphery of the first spray pipe (6) are both connected with a first main nozzle (8), the outer periphery of the first main nozzle (8) is sleeved with a first annular clamp (9), a first sliding plate (10) is fixed to one side of the first annular clamp (9), and a first clamping drive assembly is provided outside the first spray pipe (6); A first concave frame (17) is fixed at the top end of the spray frame (1), a sliding block (18) is slidably connected to the first concave frame (17), and a front-rear sliding drive assembly is provided in the first concave frame (17); A first spacing adjustment component is provided above the first telescopic tube (4); A second concave frame (21) is provided below the first telescopic tube (4), and two left and right spray pipes (23) are provided below the second concave frame (21) and are distributed front to back. The lower ends of the left and right spray pipes (23) are connected to the second delivery pipe (24), and the lower ends of the second delivery pipe (24) are connected to the second spray pipe (25). The front and rear parts of the inner periphery of the second spray pipe (25) are connected to the second side spray head (29), and the upper and lower ends of the inner periphery of the second spray pipe (25) are connected to the second front spray head (30). The outer periphery of the second front spray head (30) is sleeved with a second annular clamp (31), a second sliding plate (35) is fixed to one side of the second annular clamp (31), and a second clamping drive assembly is provided outside the second spray pipe (25); A second spacing adjustment component is provided above the second telescopic tube (26); A left-right sliding drive assembly is provided below the first telescopic tube (4).

2. The outdoor billboard frame spraying device according to claim 1, characterized in that: The first clamping drive assembly includes a first fixed plate (11), a first forward and reverse motor (12) and a first bidirectional screw (13). The first fixed plate (11) is provided with two pieces and is distributed up and down and fixed to the outside of the first spray pipe (6). The first forward and reverse motor (12) is fixed to the inside of one of the fixed plates (11). One end of the first bidirectional screw (13) is connected to the power end of the first forward and reverse motor (12), and the other end of the first bidirectional screw (13) is rotatably connected to the inside of the other fixed plate (11). The first sliding plate (10) is threadedly sleeved with the first bidirectional screw (13), and the first sliding plate (10) is slidably sleeved with the first spray pipe (6).

3. The outdoor billboard frame spraying device according to claim 1, characterized in that: The forward and backward sliding drive assembly includes a first forward and reverse motor (19) and a first driving screw (20), wherein the first forward and reverse motor (19) is fixed to the rear end of the first concave frame (17), one end of the first driving screw (20) is connected to the power end of the first forward and reverse motor (19), and the other end of the first driving screw (20) is rotatably connected to the front end of the first concave frame (17), and the sliding block (18) is threadedly sleeved with the first driving screw (20).

4. The outdoor billboard frame spraying device according to claim 1, characterized in that: The first spacing adjustment assembly includes a first adjustment block (14), a guide rod (15) and a first bidirectional screw (16), wherein the first adjustment block (14) is provided with two pieces and is fixed to the upper ends of the front and rear spray pipes (3) one by one, the guide rod (15) is provided with two pieces and is fixed to the left and right ends of the sliding block (18) respectively, and the guide rod (15) slides through the first adjustment block (14) on the same side, the first bidirectional screw (16) is threaded through the two first adjustment blocks (14), and the first bidirectional screw (16) rotates through the sliding block (18).

5. The outdoor billboard frame spraying device according to claim 1, characterized in that: The second clamping drive assembly includes a second fixed plate (33), a second forward and reverse motor (34) and a second bidirectional screw (36). The second fixed plate (33) is provided with two pieces and is distributed up and down and is fixed on the outside of the second spray pipe (25). The second forward and reverse motor (34) is fixed on the inside of one of the second fixed plates (33). One end of the second bidirectional screw (36) is connected to the power end of the second forward and reverse motor (34), and the other end of the second bidirectional screw (36) is rotatably connected to the inside of the other second fixed plate (33). The second sliding plate (35) is threadedly sleeved with the second bidirectional screw (36), and the second sliding plate (35) is slidably sleeved with the second spray pipe (25).

6. The outdoor billboard frame spraying device according to claim 1, characterized in that: The second spacing adjustment assembly includes a second adjustment block (22), a slide rod (27) and a second bidirectional screw (28). The second adjustment block (22) is provided with two blocks and is fixed to the upper ends of the left and right spray pipes (23) one by one. The slide rod (27) is fixed in the second concave frame (21). The second adjustment block (22) is slidably sleeved with the slide rod (27). The second bidirectional screw (28) rotates from front to back and passes through the second concave frame (21), and the second adjustment block (22) is threadedly sleeved with the second bidirectional screw (28).

7. The outdoor billboard frame spraying device according to claim 1, characterized in that: The left-right sliding drive assembly includes a guide shaft (37), a second forward and reverse motor (38) and a second driving screw (39), wherein two guide shafts (37) are provided, and the two guide shafts (37) are distributed front and back and are fixed in the spray frame (1), the second concave frame (21) is slidably sleeved with the guide shaft (37), the second forward and reverse motor (38) is fixed to the right wall inside the spray frame (1), one end of the second driving screw (39) is connected to the power end of the second forward and reverse motor (38), the second concave frame (21) is threadedly sleeved with the second driving screw (39), and the other end of the second driving screw (39) is rotatably connected to the left wall inside the spray frame (1).

8. The outdoor billboard frame spraying device according to claim 1, characterized in that: The spray tank (2) is externally connected to a delivery pump (40), a delivery port of the delivery pump (40) is connected to a discharge pipe (41), an upper portion of the discharge pipe (41) is connected to a first delivery valve (42), a telescopic hose (43) is connected between the first delivery valve (42) and adjacent front and rear spray pipes (3), and the telescopic hose (43) passes through the spray frame (1).

9. The outdoor billboard frame spraying device according to claim 8, characterized in that: The right end of the discharge pipe (41) is connected to a second delivery valve (44), and a second telescopic hose (45) is connected between the second delivery valve (44) and the adjacent left and right spray pipes (23), and the second telescopic hose (45) passes through the spray frame (1).

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