An apparatus for coating a fluid on a surface

Abstract

The present invention discloses a device for coating a fluid on a surface, which relates to the technical field of coating, and includes an external component, a coating head mechanism, an adjusting mechanism, a moving mechanism, and a smoothing mechanism; the adjusting mechanism is used to adjust the distances between the first reversing roller, the second reversing roller, and the folding-back roller; the moving mechanism acts to push the detection frame to move and is used to adjust the distance between the detection frame and the folding-back roller; the smoothing mechanism uses a rotating motor as a power source to form a centrifugal force, and under the conversion of the centrifugal force, it reciprocates during the contact process between the doctor blade and the coating surface, improving the scraping flatness of the coating surface. In the present invention, the coating treatment device significantly improves the quality and efficiency of the coating treatment through advantages such as high-precision adjustment, efficient coating and precise gluing, stable transmission, intelligent scraping and treatment of excess glue, and flexible adjustment to meet different requirements. Moreover, in this process, it can improve the uniformity of the coating distribution and reduce the production cost.

Description

Technical Field

[0001] The present invention relates to the technical field of coating, and specifically to a device for coating a fluid on a surface. Background Art

[0002] Coating is an important industrial technology. It involves coating a paste polymer, molten polymer or polymer solution on substrates such as paper, cloth, plastic film, etc. to obtain a composite material (film) with special functions. As an important industrial technology, coating technology has broad application prospects and development potential. With the continuous progress and innovation of technology, coating technology will play an important role in more fields, bringing more convenience and benefits to people's lives and work.

[0003] In the field of coating technology, although existing coating devices can already meet the basic needs of various application scenarios, in the actual operation process, they still face some significant technical challenges, especially in aspects such as coating uniformity and adaptability of coating speed. There are still obvious deficiencies in existing devices.

[0004] Uneven coating is one of the main problems faced by current coating devices. Due to the influence of various factors during the coating process (such as the fluidity of the coating liquid, the surface characteristics of the substrate, the design of the coating tool, etc.), it often leads to uneven distribution of the coating on the substrate, thus affecting the quality and performance of the product. Coating speed is a key factor affecting production efficiency. In the context of pursuing production efficiency, coating speed has become one of the important indicators for measuring the performance of coating devices. However, when existing coating devices attempt to increase the coating speed, they often face problems such as a decline in coating quality and uniformity. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for coating a fluid on a surface, so as to solve the problems of uneven distribution and reduced quality caused by the coating method in the above-mentioned background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A device for coating a fluid on a surface, including an external component, a coating head mechanism, an adjusting mechanism, a moving mechanism, and a smoothing mechanism.

[0007] The coating head mechanism is located inside the external component and uses a driving motor as a power source to drive the entire device as a power source.

[0008] The adjusting mechanism uses an external cylinder and a micro cylinder as power sources to adjust the distances between the first reversing roller, the second reversing roller, and the return roller.

[0009] The moving mechanism acts on the rotating turntable. Driven by the moving mechanism, it can be used to push the detection frame to move and adjust the distance between it and the return roller.

[0010] The smoothing mechanism uses a rotating motor as the power source to generate centrifugal force, and forms a reciprocating drive in mutual cooperation, capable of maintaining reciprocating motion during the contact process between the scraping plate and the coating surface, thereby improving the scraping flatness of the coating surface.

[0011] Preferably, the smoothing mechanism includes a rotating motor and a long rod;

[0012] The rotating end of the rotating motor is fixedly connected with a centrifugal disc. A linkage rod is movably sleeved on the top of the centrifugal disc. An activity seat is movably inserted into the inner wall of the linkage rod. Two activity rods are fixedly inserted into the interior of the activity seat. On one side of the outer wall of each of the two activity seats, two angle adjusters are fixedly connected. The adjusting ends of the two angle adjusters are both movably connected with built-in cylinders. The telescopic ends of the two built-in cylinders are both fixedly connected with angle rotators. A scraping plate is fixedly connected between the tops of the two angle rotators. And between one side of the outer walls of the two angle rotators and the outer surface of the long rod is fixedly connected.

[0013] Preferably, the moving mechanism includes a set of driving seats and two transmission seats;

[0014] A rotating disc is rotatably connected to the inner wall of a set of the driving seats. A threaded ring is fixedly sleeved on the outer surface of the rotating disc. A spiral gear is meshed with the outer surface of the threaded ring. An inner rod is fixedly connected to one side of the outer wall of the spiral gear. Two inner gears are fixedly sleeved on the outer surface of the inner rod.

[0015] Extension rods are respectively movably embedded in the inner walls of the two transmission seats. The outer surfaces of the two inner gears are respectively rotatably connected inside the transmission seats. The outer surfaces of the two inner gears are respectively meshed and driven with the interiors of the extension rods. A detection frame is fixedly connected between one side of the outer walls of the two extension rods. A laser displacement sensor is arranged inside the detection frame. A set of laser displacement receivers is arranged inside the laser displacement sensor.

[0016] Preferably, the adjusting mechanism includes two external cylinders and two fixed platforms;

[0017] The telescopic ends of the two external cylinders are both fixedly connected with moving seats. Moving frames are respectively slidably embedded in the inner walls of the two moving seats. A first reversing roller is rotatably connected between the interiors of the two moving frames. Linkage plates are fixedly connected to one side of the outer walls of the two moving frames. Miniature cylinders are fixedly connected to one side of the outer walls of the two moving seats. The telescopic ends of the two miniature cylinders are respectively fixedly connected with one side of the outer wall of the linkage plate. A second reversing roller is rotatably connected between the interiors of the two moving seats.

[0018] Preferably, the outer walls of the two fixing platforms are both slidably embedded with sliding seats, and the tops of the two sliding seats are respectively fixedly connected to the bottom of the moving seat.

[0019] Preferably, the coating head mechanism includes a coating frame plate and a transmission gear box;

[0020] Two built-in bearings are fixedly inserted inside the coating frame plate, and a return roller is rotatably connected between the inner walls of the two built-in bearings.

[0021] Preferably, two fixing plates are fixedly installed on the top of the coating frame plate, an upper glue table is fixedly connected between the outer walls of the two fixing plates, bottom plates are fixedly connected to the bottoms of the two fixing plates, a clamping roller is rotatably connected between the interiors of the two bottom plates, and a gear A is fixedly connected to one side of the outer wall of the return roller.

[0022] Preferably, the driving end of the transmission gear box is fixedly connected with a gear B, the driving end inside the transmission gear box is meshed and driven with the outer wall of the gear A, and one side of the outer wall of the transmission gear box is fixedly connected with one side of the outer wall of the coating frame plate.

[0023] Preferably, a driving motor is fixedly connected to one side of the outer wall of the coating frame plate, a gear C is fixedly connected to the rotating end of the driving motor, and the outer wall of the gear C is meshed and driven with the inner wall of the gear B.

[0024] Preferably, one side of the outer wall of the external component is fixedly connected with the outer wall of the coating frame plate, one sides of the outer walls of the two external cylinders are fixedly connected with the outer wall of the coating frame plate, the bottoms of the two fixing platforms are respectively fixedly connected with the bottom of the inner wall of the coating frame plate, one side of the outer wall of a group of driving seats is fixedly connected with the outer wall of the coating frame plate, one sides of the outer walls of the two transmission seats are fixedly connected with the inner wall of the coating frame plate, and the built-in rod movably penetrates through the inside of the coating frame plate.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] 1. In the present invention, the coating treatment device significantly improves the quality and efficiency of coating treatment through advantages such as high-precision adjustment, efficient coating and precise gluing, stable transmission, intelligent scraping and treatment of excess glue, and flexible adjustment to meet different requirements. In this process, the uniformity of coating distribution can be improved, and the production cost can be reduced.

[0027] 2. In the present invention, before the equipment is enabled, through the precise control of the synchronizer, two external cylinders are started simultaneously, telescoping at the same frequency to precisely adjust the distance between the second reversing roller and the folding roller. The micro cylinder also works synchronously, pulling the moving frame to move inside the moving seat through the linkage plate to precisely adjust the distance between the first reversing roller and the second reversing roller, significantly improving the adaptability of the equipment, meeting the coating treatment requirements of different specifications, and enhancing the adaptability of the device.

[0028] 3. In the present invention, after the rotating motor is powered on, a centrifugal force is generated through the centrifugal disk, driving the movable rod and the movable seat to move quickly back and forth, and then driving the scraping plate to vibrate rapidly, smoothing and cleaning the excess gel adhered to the outer wall of the coating, improving the coating quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a front view structural schematic diagram of a device for coating a fluid on a surface according to the present invention;

[0030] Figure 2 It is a three-dimensional front view structural diagram of a device for coating a fluid on a surface according to the present invention;

[0031] Figure 3 It is a side view structural schematic diagram of a device for coating a fluid on a surface according to the present invention;

[0032] Figure 4 It is a three-dimensional partial structural exploded view of a device for coating a fluid on a surface according to the present invention;

[0033] Figure 5 It is a device for coating a fluid on a surface according to the present invention Figure 4 and an enlarged view of structure A therein;

[0034] Figure 6 It is a three-dimensional view of the moving mechanism of a device for coating a fluid on a surface according to the present invention;

[0035] Figure 7 It is a plan view of the detection frame of a device for coating a fluid on a surface according to the present invention;

[0036] Figure 8 It is a bottom three-dimensional view of the smoothing mechanism of a device for coating a fluid on a surface according to the present invention;

[0037] Figure 9 It is a flowchart of the operation of a device for coating a fluid on a surface according to the present invention.

[0038] In the figure: 1. External component; 2. Coating head mechanism; 21. Coating frame plate; 211. Built-in bearing; 212. Return roller; 22. Fixed plate; 221. Gluing table; 23. Bottom plate; 231. Clamping roller; 24. Gear A; 25. Transmission gearbox; 251. Gear B; 26. Driving motor; 261. Gear C; 3. Adjusting mechanism; 31. External cylinder; 32. Moving seat; 321. Moving frame; 322. Linking plate; 323. First reversing roller; 324. Micro cylinder; 33. Sliding seat; 331. Fixed table; 34. Second reversing roller; 4. Moving mechanism; 41. Driving seat; 411. Rotating disk; 412. Threaded ring; 42. Spiral gear; 421. Built-in rod; 43. Transmission seat; 431. Extension rod; 44. Built-in gear; 45. Detection frame; 451. Laser displacement sensor; 452. Laser displacement receiver; 5. Smoothing mechanism; 51. Rotating motor; 511. Centrifugal disk; 512. Linking rod; 52. Movable seat; 53. Movable rod; 531. Angle adjuster; 532. Built-in cylinder; 54. Long rod; 541. Angle rotator; 55. Scraping plate. Detailed implementation

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] Embodiment 1, referring to Figures 1 - 9 As shown: The present invention provides a device for coating a fluid on a surface, including an external component 1, a coating head mechanism 2, an adjusting mechanism 3, a moving mechanism 4, and a smoothing mechanism 5;

[0041] The coating head mechanism 2 is located inside the external component 1 and uses the driving motor 26 as a power source to drive the entire device as a power source;

[0042] The adjusting mechanism 3 uses the external cylinder 31 and the micro cylinder 324 as power sources to adjust the distances between the first reversing roller 323, the second reversing roller 34, and the return roller 212;

[0043] The moving mechanism 4 acts on the rotating disk 411. Under the transmission inside the moving mechanism 4, it can be used to push the detection frame 45 to move and adjust the distance between it and the return roller 212;

[0044] The flattening mechanism 5 uses the rotary motor 51 as the power source to generate centrifugal force. With mutual cooperation, it forms a reciprocating drive, and can maintain reciprocating motion during the contact process between the scraping plate 55 and the coating surface, thereby improving the scraping flatness of the coating surface.

[0045] In this embodiment, first, when the equipment is in use, it is necessary to make preliminary adjustments to the device. First, under the action of the synchronizer, two external cylinders 31 are started simultaneously. Their telescopic ends are in an operating state at the same frequency, thereby pushing the two moving seats 32 to move to one side, thus adjusting the distance between the second reversing roller 34 and the return roller 212. Then, under the connection and drive of the synchronizer, the telescopic ends of the two micro-cylinders 324 act, and with the two linkage plates 322 as the linkage medium, the two moving frames 321 can be pulled to move in the respective moving seats 32 in an embedded manner. This adjustment method can effectively adjust the distance between the first reversing roller 323 and the second reversing roller 34. This adjustment method can be effectively adjusted according to the thickness requirement of the coating, improving the adaptability of the equipment.

[0046] First, the coating is placed under the two first reversing rollers 323, and the coating is clamped between the outer walls of the first reversing roller 323 and the second reversing roller 34. Subsequently, the coating passes between the outer walls of the clamping roller 231 and the return roller 212, and then is wound back from the bottom of the return roller 212.

[0047] Example two, according to Figures 1 - 9 As shown, the adjusting mechanism 3 includes two external cylinders 31 and two fixed platforms 331;

[0048] The telescopic ends of the two external cylinders 31 are fixedly connected with moving seats 32. The inner walls of the two moving seats 32 are slidably embedded with moving frames 321. A first reversing roller 323 is rotatably connected between the two moving frames 321. One side of the outer walls of the two moving frames 321 is fixedly connected with a linkage plate 322. One side of the outer walls of the two moving seats 32 is fixedly connected with a micro-cylinder 324, and the telescopic ends of the two micro-cylinders 324 are respectively fixedly connected with one side of the outer wall of the linkage plate 322. A second reversing roller 34 is rotatably connected between the two moving seats 32. The outer walls of the two fixed platforms 331 are slidably embedded with sliding seats 33, and the tops of the two sliding seats 33 are respectively fixedly connected with the bottoms of the moving seats 32;

[0049] The moving mechanism 4 includes a set of driving seats 41 and two transmission seats 43;

[0050] The inner wall of a set of drive turntables 41 is rotatably connected to a rotating disk 411. A threaded ring 412 is fixedly sleeved on the outer wall of the rotating disk 411. A helical gear 42 is meshed and connected to the outer wall of the threaded ring 412. One side of the outer wall of the helical gear 42 is fixedly connected to an inner rod 421. Two inner gears 44 are fixedly sleeved on the outer wall of the inner rod 421.

[0051] The inner walls of two transmission seats 43 are both embedded and moved with extension rods 431. The outer walls of the two inner gears 44 are rotatably connected inside the transmission seats 43. The outer walls of the two inner gears 44 are respectively meshed and driven with the inside of the extension rods 431. A detection frame 45 is fixedly connected between one sides of the outer walls of the two extension rods 431. A laser displacement sensor 451 is arranged inside the detection frame 45. A set of laser displacement receivers 452 is arranged inside the laser displacement sensor 451.

[0052] The flattening mechanism 5 includes a rotating motor 51 and a long rod 54.

[0053] The rotating end of the rotating motor 51 is fixedly connected to a centrifugal disk 511. A linkage rod 512 is movably sleeved on the top of the centrifugal disk 511. An inner seat 52 is movably inserted into the inner wall of the linkage rod 512. Two movable rods 53 are fixedly inserted into the inside of the inner seat 52. Two angle adjusters 531 are fixedly connected to one sides of the outer walls of the two inner seats 52. The adjusting ends of the two angle adjusters 531 are movably connected to inner cylinders 532. The telescopic ends of the two inner cylinders 532 are fixedly connected to angle rotators 541. A scraping plate 55 is fixedly connected between the tops of the two angle rotators 541. One side between the outer walls of the two angle rotators 541 is fixedly connected to the outer wall of the long rod 54.

[0054] In this embodiment, the processed raw material is then inverted into the inside of the gluing table 221. A notch is opened at the bottom of the gluing table 221. Such a notch is controlled by an electromagnetic valve and can adjust a flow rate. When the coating is clamped between the outer walls of the return roller 212 and the clamping roller 231, during the rotation of the clamping roller 231, the raw material inside the gluing table 221 can be poured between the outer walls of the clamping roller 231. During this process, the drive motor 26 acts as power and drives the gear C261 to rotate. Since the gear C261 is in meshing transmission with the gear B251, and the gear B251 drives the components inside the transmission gearbox 25 to implement transmission, the transmission gearbox 25 is in meshing transmission with the gear A24, and finally the return roller 212 fixedly installed on one side of the outer wall of the gear A24 is driven.

[0055] By rotating the rotating disk 411, meshing transmission is generated between the threaded ring 412 and the helical gear 42, so as to realize the rotation of the built-in rod 421. The built-in rod 421 drives the two built-in gears 44 to rotate at the same frequency. The two built-in gears 44 are respectively in meshing transmission with the bottom of the extension rod 431, and the two extension rods 431 are respectively embedded and moved inside the transmission seat 43, thereby pushing the detection frame 45 fixedly installed between the outer walls of the two extension rods 431 to move to one side. During this process, the laser displacement sensor 451 emits a laser beam, and the laser displacement receiver 452 receives the signal reflected back by it, calculates the distance between the coating surface and the sensor, and thus obtains the coating thickness. When the coating thickness is uneven, the signal intensity and time difference received by the sensor will change.

[0056] Embodiment 3. According to Figures 1 - 4 As shown, the coating head mechanism 2 includes a coating frame plate 21 and a transmission gear box 25;

[0057] Two built-in bearings 211 are fixedly inserted inside the coating frame plate 21. A return roller 212 is rotatably connected between the inner walls of the two built-in bearings 211. Two fixing plates 22 are fixedly installed on the top of the coating frame plate 21. An upper glue table 221 is fixedly connected between the outer walls of the two fixing plates 22. The bottoms of the two fixing plates 22 are fixedly connected with bottom plates 23 respectively. A clamping roller 231 is rotatably connected between the two bottom plates 23. One side of the outer wall of the return roller 212 is fixedly connected with a gear A24. The transmission end of the transmission gear box 25 is fixedly connected with a gear B251. The inner transmission end of the transmission gear box 25 is in meshing transmission with the outer wall of the gear A24, and one side of the outer wall of the transmission gear box 25 is fixedly connected with one side of the outer wall of the coating frame plate 21. One side of the outer wall of the coating frame plate 21 is fixedly connected with a drive motor 26. The rotating end of the drive motor 26 is fixedly connected with a gear C261, and the outer wall of the gear C261 is in meshing transmission with the inner wall of the gear B251;

[0058] One side of the outer wall of the external component 1 is fixedly connected with the outer wall of the coating frame plate 21. One side of the outer walls of the two external cylinders 31 is fixedly connected with the outer wall of the coating frame plate 21. The bottoms of the two fixed platforms 331 are respectively fixedly connected with the bottom of the inner wall of the coating frame plate 21. One side of the outer wall of a group of drive seats 41 is fixedly connected with the outer wall of the coating frame plate 21. One side of the outer walls of the two transmission seats 43 is fixedly connected with the inner wall of the coating frame plate 21. The built-in rod 421 movably penetrates through the inside of the coating frame plate 21.

[0059] In this embodiment, during the gluing process of coating, when the rotating motor 51 is powered on, its output end can generate rotation, and under the rotation of the centrifugal disc 511, centrifugal force is generated. The centrifugal force is transmitted through the linkage rod 512, and with the cooperation of the two movable rods 53, the movable seat 52 can be maintained to move back and forth quickly, so that the scraping plate 55 can be maintained to vibrate quickly, thereby smoothing and cleaning the excess glue on the outer wall of the coating. When in use, the two built-in cylinders 532 can, under the activation of the synchronizer, use the angle rotator 541 as a medium to push the bottom of the scraping plate 55 forward. Under the limitation of the angle adjuster 531, an angle of the scraping plate 55 can be effectively adjusted.

[0060] The working principle of the entire mechanism is as follows: First, before the device is put into use, the entire device needs to be adjusted. Under the precise control of the synchronizer, two external cylinders 31 will start simultaneously, and their telescopic ends will expand and contract at the same frequency, thereby pushing the two moving seats 32 to move to one side, precisely adjusting the distance between the second reversing roller 34 and the folding roller 212. Subsequently, the two micro-cylinders 324 also start to work under the connection and drive of the synchronizer. Their telescopic ends, through the linkage plate 322 as a medium, can pull the two moving frames 321 to move inlaid inside the moving seat 32, adjusting the distance between the first reversing roller 323 and the second reversing roller 34, thus greatly improving the adaptability of the device. When the device is in use, the coating will pass through the bottom of the two first reversing rollers 323 and be clamped between the outer walls of the first reversing roller 323 and the second reversing roller 34. Subsequently, the coating will pass through the outer walls of the clamping roller 231 and the folding roller 212, and finally be wound back from the bottom of the folding roller 212. During this process, the components required for the coating treatment device are extremely precise. During the processing, the raw material will be inverted inside the gluing table 221. There is a notch controlled by an electromagnetic valve at the bottom of the gluing table 221. By adjusting the electromagnetic valve, the flow rate of the raw material can be precisely controlled. When the coating is clamped between the outer walls of the folding roller 212 and the clamping roller 231, the clamping roller 231 starts to rotate under the drive of the driving motor 26. This rotation process will evenly introduce the raw material inside the gluing table 221 between the outer walls of the clamping roller 231, thereby realizing the gluing treatment of the coating. The power of the driving motor 26 is transmitted to the gear B251 through the gear C261, and then drives the transmission of the components inside the transmission gearbox 25. Finally, this power transmission will drive the folding roller 212 fixedly installed on one side of the outer wall of the gear A24 to rotate, ensuring that the coating can be smoothly transmitted in the device. In addition, during the coating gluing process, after the rotating motor 51 is powered on, its output end will rotate and generate a centrifugal force through the centrifugal disc 511. This centrifugal force is transmitted to the movable rod 53 through the linkage rod 512. With the telescopic cooperation of the movable rod 53, it will drive the movable seat 52 to move back and forth quickly. The movement of the movable seat 52 will drive the scraping plate 55 to vibrate quickly, thereby flattening and cleaning the excess glue on the outer wall of the coating. In order to ensure that the scraping plate 55 can move and adjust at a predetermined angle, the two built-in cylinders 532 will, under the start of the synchronizer, use the angle rotator 541 as a medium to push the bottom of the scraping plate 55 forward. At the same time, under the limiting action of the angle adjuster 531, the angle of the scraping plate 55 can be adjusted to meet different production requirements.

[0061] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A device for applying a fluid to a surface, comprising an external component (1), a coating head mechanism (2), an adjustment mechanism (3), a moving mechanism (4) and a smoothing mechanism (5), characterized in that ； The coating head mechanism (2) is located inside the external component (1) and uses a driving motor (26) as a power source, which is used to form a power source to drive the entire device; The adjustment mechanism (3) uses an external cylinder (31) and a micro cylinder (324) as a power source and is used to adjust the spacing between the first reversing roller (323), the second reversing roller (34) and the return roller (212); The moving mechanism (4) acts on the rotating disk (411) and can be used to push the detection frame (45) to move under the internal transmission of the moving mechanism (4) so ​​as to adjust the distance between the detection frame (45) and the return roller (212); The smoothing mechanism (5) uses the rotating motor (51) as a power source to form a centrifugal force, which cooperates with each other to form a back-and-forth drive, and can maintain the reciprocating motion of the scraping plate (55) during the contact process with the coating surface, thereby improving the scraping flatness of the coating surface; The smoothing mechanism (5) comprises a rotating motor (51) and a long rod (54); The rotating end of the rotating motor (51) is fixedly connected to a centrifugal disc (511), a linkage rod (512) is movably sleeved on the top of the centrifugal disc (511), a movable seat (52) is movably inserted into the inner surface wall of the linkage rod (512), two movable rods (53) are fixedly inserted inside the movable seat (52), two angle adjusters (531) are fixedly connected to one side of the outer wall of the two movable seats (52), the adjustment ends of the two angle adjusters (531) are movably connected to a built-in cylinder (532), the telescopic ends of the two built-in cylinders (532) are fixedly connected to an angle rotator (541), a scraping plate (55) is fixedly connected between the tops of the two angle rotators (541), and one side of the outer wall of the two angle rotators (541) is fixedly connected to the outer wall of the long rod (54); The moving mechanism (4) comprises a set of driving seats (41) and two transmission seats (43); A rotating disk (411) is rotatably connected to the inner surface wall of a group of the driving seats (41); a threaded ring (412) is provided on the outer surface wall of the rotating disk (411); a helical gear (42) is meshedly connected to the outer surface wall of the threaded ring (412); an inner rod (421) is fixedly connected to one side of the outer wall of the helical gear (42); and two inner gears (44) are provided on the outer surface wall of the inner rod (421); The inner surfaces of the two transmission seats (43) are both embedded with movable extension rods (431), and the outer surfaces of the two built-in gears (44) are both rotatably connected to the inside of the transmission seats (43), and the outer surfaces of the two built-in gears (44) are respectively meshed with the inside of the extension rods (431) for transmission, and a detection frame (45) is fixedly connected between one side of the outer walls of the two extension rods (431), and a laser displacement sensor (451) is arranged inside the detection frame (45), and a group of laser displacement receivers (452) are arranged inside the laser displacement sensor (451); The regulating mechanism (3) comprises two external cylinders (31) and two fixing platforms (331); The telescopic ends of the two external cylinders (31) are fixedly connected to a moving seat (32), the inner surface walls of the two moving seats (32) are slidably embedded with a moving frame (321), the interiors of the two moving frames (321) are rotatably connected with a first reversing roller (323), the outer walls of the two moving frames (321) are fixedly connected to a linkage plate (322), the outer walls of the two moving seats (32) are fixedly connected to a micro cylinder (324), and the telescopic ends of the two micro cylinders (324) are respectively fixedly connected to the outer wall of the linkage plate (322), the interiors of the two moving seats (32) are rotatably connected with a second reversing roller (34), the outer surfaces of the two fixed platforms (331) are slidably embedded with a sliding seat (33), and the tops of the two sliding seats (33) are respectively fixedly connected to the bottom of the moving seat (32).

2. A device for applying a fluid to a surface according to claim 1, characterized in that: The coating head mechanism (2) comprises a coating frame plate (21) and a transmission gear box (25); Two built-in bearings (211) are fixedly inserted inside the coating frame plate (21), and a folding roller (212) is rotatably connected between the inner surface walls of the two built-in bearings (211).

3. A device for applying a fluid to a surface according to claim 2, characterized in that: Two fixed plates (22) are fixedly installed on the top of the coating frame plate (21); a gluing platform (221) is fixedly connected between the outer walls of the two fixed plates (22); a bottom plate (23) is fixedly connected to the bottom of the two fixed plates (22); a clamping roller (231) is rotatably connected between the insides of the two bottom plates (23); and a gear A (24) is fixedly connected to one side of the outer wall of the folding roller (212).

4. A device for applying a fluid to a surface according to claim 3, characterized in that: The transmission end of the transmission gear box (25) is fixedly connected to a gear B (251), and the internal transmission end of the transmission gear box (25) meshes with the outer wall of the gear A (24) for transmission, while one side of the outer wall of the transmission gear box (25) is fixedly connected to one side of the outer wall of the coating frame plate (21).

5. The device for applying a fluid to a surface according to claim 4, characterized in that: A driving motor (26) is fixedly connected to one side of the outer wall of the coating frame plate (21), a gear C (261) is fixedly connected to the rotating end of the driving motor (26), and the outer wall of the gear C (261) is meshed with the inner wall of the gear B (251) for transmission.

6. The device for applying fluid to a surface according to claim 5, characterized in that: One side of the outer wall of the external component (1) is fixedly connected to the outer wall of the coating frame plate (21); one side of the outer wall of the two external cylinders (31) is fixedly connected to the outer wall of the coating frame plate (21); the bottoms of the two fixed platforms (331) are respectively fixedly connected to the bottom of the inner wall of the coating frame plate (21); one side of the outer wall of a group of driving seats (41) is fixedly connected to the outer wall of the coating frame plate (21); one side of the outer wall of the two driving seats (43) is fixedly connected to the inner wall of the coating frame plate (21); and the internal rod (421) movably passes through the interior of the coating frame plate (21).

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