Multi-specification adjusting type automatic sealing device and method for aluminum alloy template anodic oxidation

Abstract

The present application relates to the technical field of aluminum plate processing, and particularly relates to a multi-specification adjusting type automatic sealing device and method for anodic oxidation of an aluminum alloy template, which comprises a spraying box with an inlet and an outlet at two ends, a tensioning mechanism and a spraying mechanism, and guide rollers are arranged at the two ends in the spraying box; the tensioning mechanism is arranged between the two guide rollers, and the tensioning mechanism comprises a plurality of supporting rollers, the lower end of the supporting roller is provided with a first tensioning structure for tensioning the aluminum plate in the vertical direction, and the two ends of the supporting roller are provided with a second tensioning structure for tensioning the aluminum plate in the horizontal direction; the spraying mechanism is located above the tensioning mechanism, and the spraying mechanism comprises a plurality of spraying pipes which are parallel to each other and to the supporting rollers and a liquid supply structure for simultaneously supplying spraying liquid to the plurality of spraying pipes; the supporting roller, the first tensioning structure, the second tensioning structure and the spraying mechanism are arranged, so that uniform spraying of the organic coating on the surface of the aluminum plate is realized, and the consistency of the sealing effect of the aluminum plate is ensured.

Description

Technical Field

[0001] This invention relates to the field of aluminum plate processing technology, specifically to a multi-specification adjustable automatic sealing device for anodizing aluminum alloy templates, and also to a sealing method for the multi-specification adjustable automatic sealing device for anodizing aluminum alloy templates. Background Technology

[0002] Anodizing is a crucial step in the production and processing of aluminum alloy formwork. It not only enhances the corrosion resistance, hardness, and wear resistance of the aluminum alloy formwork but also imparts an aesthetically pleasing surface color. However, anodizing creates numerous tiny pores on the surface of the aluminum alloy formwork. If these pores are not sealed, they will severely impact the formwork's weather resistance and service life. Therefore, pore sealing is an indispensable step after anodizing.

[0003] Patent CN213357780U discloses an aluminum plate sealing spraying device. When spraying the aluminum plate, the aluminum plate moves from one guide roller to another. A support roller is set between the two guide rollers to provide support for the aluminum plate and prevent the aluminum plate from deforming under the spraying action of the sealing liquid. The spraying system sprays the sealing liquid onto the aluminum plate from above the two guide rollers.

[0004] Although the above solution achieves automated sealing, the aluminum plate tension varies. When the aluminum plate is concave between the two guide rollers, the support roller can support the aluminum plate, but the aluminum plate between the support roller and the guide roller may still be concave. When the aluminum plate is arched upward between the two guide rollers, the support roller cannot function. In these two situations, the distance between the surface of the aluminum plate and the spraying system is different. The surface closer to the spraying system receives a thicker organic coating, while the surface farther from the spraying system receives a thinner organic coating. Summary of the Invention

[0005] To address the aforementioned issues, a multi-specification adjustable automatic sealing device for anodizing aluminum alloy templates is provided. By incorporating rollers, a primary tensioning structure, a secondary tensioning structure, and a spraying mechanism, the device achieves uniform spraying of organic coating onto the aluminum plate surface, thereby ensuring consistent sealing effects across the aluminum plate.

[0006] To address the problems of existing technologies, this invention provides a multi-specification adjustable automatic sealing device for anodizing aluminum alloy templates. It includes a spray box with an inlet and an outlet at each end, guide rollers at both ends inside the spray box, a tensioning mechanism positioned between the two guide rollers, and a spraying mechanism located above the tensioning mechanism. The tensioning mechanism includes multiple parallel rollers parallel to each other and parallel to the guide rollers. A primary tensioning structure for tensioning the aluminum plate vertically is provided at the lower end of each roller, and secondary tensioning structures for tensioning the aluminum plate horizontally are provided at both ends of each roller. The spraying mechanism includes multiple parallel spray pipes parallel to each other and parallel to the rollers, and a liquid supply structure for simultaneously supplying spray liquid to the multiple spray pipes.

[0007] Preferably, the primary tensioning structure includes two roller frames arranged at the same height and a first tensioning component; the two roller frames are respectively arranged at both ends of the roller and connected to the roller; the first tensioning component is connected to the two roller frames and is used to drive the two roller frames to rise and fall synchronously.

[0008] Preferably, the secondary tensioning structure includes a guide rod and a second tensioning assembly; the axis of the guide rod is along the moving direction of the aluminum plate, and multiple sliders connected to multiple rollers are slidably arranged on the guide rod, with a first spring arranged between two adjacent sliders; the second tensioning assembly is connected to two sliders located at both ends of the guide rod.

[0009] Preferably, the first tensioning assembly includes a first double-ended lead screw parallel to the idler roller and connected to the spray box. Each of the two threaded portions of the first double-ended lead screw is provided with a first moving block. A first drive plate is hinged to the first moving block to convert the horizontal movement of the first moving block into the vertical movement of the idler roller frame.

[0010] Preferably, the primary tensioning structure also includes multiple guide components, each divided into two groups, with each group of guide components used to limit the movement of the two idler roller frames.

[0011] Preferably, the second tensioning assembly includes a second double-ended lead screw perpendicular to the idler roller and connected to both ends of the idler roller frame. Each of the two threaded portions of the second double-ended lead screw is provided with a second moving block, and the second moving block is provided with a second drive plate for driving the slider to move along the axis of the guide rod.

[0012] Preferably, the spraying mechanism further includes a synchronous moving structure, which includes a mounting plate disposed at the upper end of the spray pipe, a plurality of mounting brackets for mounting the spray pipe are disposed at the lower end of the mounting plate, and connecting components for connecting to the primary tensioning structure are disposed at both ends of the mounting plate.

[0013] Preferably, the spraying mechanism further includes an adjustment structure for adjusting the distance between the spray pipe and the upper surface of the aluminum plate.

[0014] Preferably, the connecting assembly includes a U-shaped frame and a second guide post; both ends of the U-shaped frame are connected to a primary tensioning structure; one end of the second guide post passes downward through the U-shaped frame and is connected to the mounting plate, and the other end of the second guide post is fitted with a second spring, the two ends of the second spring respectively abutting against the end of the second guide post and the U-shaped frame.

[0015] This invention also provides a sealing method for a multi-specification adjustable automatic sealing device for anodizing aluminum alloy templates, applicable to the multi-specification adjustable automatic sealing device for anodizing aluminum alloy templates, comprising the following steps:

[0016] S1. The aluminum plate passes through the lower side of the guide roller near the feed inlet, the upper side of multiple support rollers, and the lower side of the guide roller near the discharge outlet in sequence inside the spray box.

[0017] S2. When the aluminum plate cannot be kept flat between the two guide rollers, the primary tensioning structure pushes multiple rollers to move upward, tensioning the aluminum plate, and the spray pipe sprays organic coating onto the horizontal aluminum plate.

[0018] S3, when the primary tensioning structure reaches its maximum push stroke, if the aluminum plate is still not tensioned, the secondary tensioning structure pushes multiple rollers away from each other to further tension the aluminum plate in the horizontal direction.

[0019] The advantages of this invention compared to the prior art are:

[0020] 1. This invention includes a roller support, a primary tensioning structure, a secondary tensioning structure, and a spraying mechanism. Different specifications of aluminum plates have varying degrees of flexibility. By combining the primary and secondary tensioning structures, the tension of aluminum plates of different specifications can be effectively adjusted. The primary tensioning structure increases the height difference between the roller support and the guide roller by simultaneously lifting multiple rollers, achieving initial tension of the aluminum plate. When the aluminum plate has not yet reached the ideal tension, the secondary tensioning structure further pushes two adjacent rollers away from each other, tensioning the aluminum plate horizontally. Under tension, the distance between the aluminum plate and the spray pipe remains consistent, ensuring uniform spraying of the organic coating on the aluminum plate surface. Because the uniformity of the coating spraying is guaranteed, the sealing effect across the aluminum plate is also consistent, improving the efficiency of coating use and the quality of the spraying.

[0021] 2. The present invention is provided with two roller frames and a first tensioning component. The first tensioning component drives the two roller frames to move away from the guide roller. The roller frames then drive multiple rollers to move synchronously, ensuring that the two ends of each roller exert the same force on the aluminum plate. This balanced force distribution helps the aluminum plate maintain a balanced force on both sides in the width direction, thereby ensuring that the aluminum plate is under balanced force during the tensioning process and effectively preventing the edge deformation of the aluminum plate.

[0022] 3. The present invention is provided with a guide rod, a slider, a first spring and a second tensioning component. In the initial state, the opposing preload applied by the second tensioning component to the slider not only overcomes the initial elastic force of the first spring, but also stores elastic potential energy by compressing the first spring. When the two-stage tensioning structure is working, the force of the second tensioning component on the slider is reduced, the first spring releases the stored elastic potential energy, and pushes the two adjacent sliders away from each other, thereby readjusting the tension of the aluminum plate and realizing further adjustment of the tension of the aluminum plate, thereby expanding the adjustment range of the tension.

[0023] 4. By setting the spraying mechanism and the first-level tensioning mechanism to move synchronously, the present invention ensures that the distance between the spray pipe and the upper surface of the aluminum plate remains constant, thereby achieving uniform coverage of the organic coating sprayed by the spray pipe on the aluminum plate within a fixed range. At the same time, by adjusting the structure, it can be ensured that the distance between the spray pipe and the aluminum plate is maintained at the preset optimal fixed value, thereby ensuring the uniform spraying effect of the organic coating on the surface of the aluminum plate.

[0024] 5. This invention adjusts the distance between the spray pipe and aluminum plates of different specifications by setting an adjustment structure, so that the distance between the spray pipe and the surface of different aluminum plates is the same, thereby achieving the same spraying effect of organic coating on aluminum plates of different thicknesses. Attached Figure Description

[0025] Figure 1 This is a perspective view of the multi-specification adjustable automatic sealing device for anodizing aluminum alloy templates according to the present invention;

[0026] Figure 2 This is a top view of the multi-specification adjustable automatic sealing device for anodizing aluminum alloy templates according to the present invention;

[0027] Figure 3 yes Figure 2 A three-dimensional sectional view at point AA;

[0028] Figure 4 This is a perspective view of the guide roller and tensioning mechanism in the multi-specification adjustable automatic sealing device for aluminum alloy template anodizing of the present invention;

[0029] Figure 5 This is a perspective view of the roller, roller frame, and secondary tensioning structure in the multi-specification adjustable automatic sealing device for aluminum alloy template anodizing of the present invention.

[0030] Figure 6 This is a perspective view of the roller, roller frame, and primary tensioning structure in the multi-specification adjustable automatic sealing device for aluminum alloy template anodizing of the present invention.

[0031] Figure 7 This is a perspective view of the roller, roller frame, and second tensioning assembly in the multi-specification adjustable automatic sealing device for aluminum alloy template anodizing of the present invention.

[0032] Figure 8 This is a perspective view of the roller frame and spraying mechanism in the multi-specification adjustable automatic sealing device for aluminum alloy template anodizing of the present invention;

[0033] Figure 9 This is a perspective view of the mounting plate, connecting components, and adjustment structure in the multi-specification adjustable automatic sealing device for aluminum alloy template anodizing of the present invention.

[0034] Figure 10 This is a perspective view of the adjustment structure in the multi-specification adjustable automatic sealing device for aluminum alloy template anodizing of the present invention;

[0035] Figure 11 This is a perspective view of the mounting plate and connecting components in the multi-specification adjustable automatic sealing device for aluminum alloy template anodizing of the present invention.

[0036] The diagram is labeled as follows: 1. Spray box; 2. Guide roller; 3. Tensioning mechanism; 31. Idler roller; 32. Primary tensioning structure; 321. Idler roller frame; 322. First tensioning assembly; 3221. First double-ended lead screw; 3222. First moving block; 3223. First drive plate; 323. Guide assembly; 3231. Guide sleeve; 3232. First guide post; 33. Secondary tensioning structure; 331. Guide rod; 332. Slider; 333. First spring; 334. Second tensioning assembly. Components; 3341, Second double-ended lead screw; 3342, Second moving block; 3343, Second drive plate; 4, Spraying mechanism; 41, Spray pipe; 42, Liquid supply structure; 43, Synchronous moving structure; 431, Mounting plate; 4311, Mounting bracket; 432, Connecting assembly; 4321, U-shaped bracket; 4322, Second guide post; 4323, Second spring; 44, Adjustment structure; 441, Third double-ended lead screw; 442, Third moving block; 443, Third drive plate. Detailed Implementation

[0037] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0038] Reference Figures 1 to 11As shown: A multi-specification adjustable automatic sealing device for anodizing aluminum alloy templates includes a spray box 1 with an inlet and an outlet at both ends. Guide rollers 2 are provided at both ends inside the spray box 1. The device also includes a tensioning mechanism 3 between the two guide rollers 2 and a spraying mechanism 4 above the tensioning mechanism 3. The tensioning mechanism 3 includes multiple parallel rollers 31 that are parallel to each other and parallel to the guide rollers 2. The lower end of the rollers 31 is provided with a primary tensioning structure 32 for tensioning the aluminum plate vertically, and the two ends of the rollers 31 are provided with secondary tensioning structures 33 for tensioning the aluminum plate horizontally. The spraying mechanism 4 includes multiple parallel spray pipes 41 that are parallel to each other and parallel to the rollers 31 and a liquid supply structure 42 for simultaneously supplying spray liquid to the multiple spray pipes 41.

[0039] During operation, the aluminum sheet to be processed enters the spray box 1 through the feed inlet, passes sequentially below the guide roller 2 near the feed inlet, above multiple idler rollers 31, and below the guide roller 2 near the discharge outlet, and finally exits through the discharge outlet. During this process, multiple spray pipes 41 spray organic coating onto the surface of the aluminum sheet carried by the idler rollers 31. If the aluminum sheet is not tensioned, the distance between the aluminum sheet and the spray pipes 41 will be uneven when passing directly below them, resulting in uneven organic coating spraying. At this time, the primary tensioning structure 32 is activated, synchronously lifting the idler rollers 31 to increase the height difference between the idler rollers 31 and the guide rollers 2, thus achieving initial tensioning of the aluminum sheet. If the idler rollers 31 are raised to... Even after the maximum stroke, the aluminum plate is still not tensioned. The secondary tensioning structure 33 is then activated, pushing the rollers 31 away from each other to further tension the aluminum plate in the horizontal direction. Through the combined use of the primary tensioning structure 32 and the secondary tensioning structure 33, the tension adjustment range of the aluminum plate is effectively improved. After tensioning is completed, the liquid supply structure 42 pressurizes and delivers the organic coating to each spray pipe 41. The organic coating is sprayed onto the surface of the aluminum plate. Since the aluminum plate is parallel to the spray pipe 41 under tension, the amount of coating sprayed on the aluminum plate is consistent, thus achieving uniform spraying of organic coating on the surface of the aluminum plate and ensuring the consistency of the sealing effect on the aluminum plate.

[0040] Reference Figure 4 As shown: The primary tensioning structure 32 includes two roller frames 321 arranged at the same height and a first tensioning component 322; the two roller frames 321 are respectively arranged at both ends of the roller 31 and are connected to the roller 31; the first tensioning component 322 is connected to the two roller frames 321 and is used to drive the two roller frames 321 to rise and fall synchronously.

[0041] The first tensioning component 322 can be a hydraulic cylinder, pneumatic cylinder, or other actuator that can drive the roller frame 321 to move in a straight line. The actuator is connected to the two roller frames 321 so that the two roller frames 321 can maintain synchronous movement. When the primary tensioning structure 32 needs to tension the aluminum plate, the first tensioning component 322 drives the two roller frames 321 to move away from the guide roller 2. The two roller frames 321 drive multiple rollers 31 to move synchronously, so that the two ends of each roller 31 exert the same force on the aluminum plate, ensuring that the aluminum plate is subjected to balanced force on both sides in the width direction, thereby ensuring that the aluminum plate is subjected to balanced force during the tensioning process and effectively preventing the edge deformation of the aluminum plate.

[0042] Reference Figure 4 and Figure 5 As shown: The secondary tensioning structure 33 includes a guide rod 331 and a second tensioning assembly 334; the axis of the guide rod 331 is along the moving direction of the aluminum plate, and a plurality of sliders 332 are slidably arranged on the guide rod 331 and respectively connected to a plurality of rollers 31, and a first spring 333 is arranged between two adjacent sliders 332; the second tensioning assembly 334 is connected to two sliders 332 located at both ends of the guide rod 331.

[0043] In the initial state, the second tensioning assembly 334 applies opposing preload forces to the two sliders 332 located at both ends. This preload force overcomes the initial elastic force of the multiple first springs 333, causing the first springs 333 to compress and store elastic potential energy. At this time, the multiple sliders 332 move closer to each other due to the preload force, resulting in a reduction in the coverage area of ​​the idler rollers 31. When the primary tensioning structure 32 has raised the multiple idler rollers 31 to their maximum stroke, but the aluminum plate has not yet reached the expected tension state, the secondary tensioning structure 33 begins to function. The second tensioning assembly 334 reduces the force applied to the two sliders 332. At this time, the first springs... The elastic potential energy stored in the first spring 333 is greater than the force applied by the second tensioning component 334. Therefore, the first spring 333 begins to release its stored energy, pushing the two adjacent sliders 332 away from each other, causing the adjacent idlers 31 to also move away from each other, increasing the overall coverage of the idlers 31. The two outermost idlers 31, under the push of the first spring 333, apply a horizontal force to the aluminum plate, effectively stretching the aluminum plate within the coverage of the multiple idlers 31, and achieving further adjustment of the tension of the aluminum plate, thereby expanding the adjustment range of the tension.

[0044] Reference Figure 4 and Figure 6As shown: The first tensioning assembly 322 includes a first double-ended lead screw 3221 parallel to the idler roller 31 and connected to the spray box 1. A first moving block 3222 is provided on each of the two threaded portions of the first double-ended lead screw 3221. A first drive plate 3223 is hinged to the first moving block 3222 to convert the horizontal movement of the first moving block 3222 into the vertical movement of the idler roller frame 321.

[0045] During the movement of the aluminum plate, due to the interaction force between the aluminum plate and the idler roller 31, the vibration of the aluminum plate will cause the idler roller 31 to vibrate, thereby weakening the tensioning effect of the idler roller 31 on the aluminum plate. Therefore, a first double-ended lead screw 3221, a first moving block 3222, and a first drive plate 3223 are provided. When multiple idler rollers 31 are needed to work together to tension the aluminum plate, the first double-ended lead screw 3221 starts to rotate, and the two first moving blocks 3222 move away from each other under the action of the screw thread. During this process, the first moving blocks 3222 move away from each other through the hinged first drive plate 3223. 23 applies a vertical force to the roller frame 321, enabling the two roller frames 321 to rise synchronously and stably, thereby tensioning the aluminum plate. Due to the threaded connection between the first double-ended lead screw 3221 and the first moving block 3222, it is ensured that when the first double-ended lead screw 3221 stops rotating, the first moving block 3222 can remain in its current position and no longer move. This effectively avoids the problem of weakened tension caused by the vibration of the roller 31, thus ensuring that the aluminum plate can always maintain a stable tension state during the movement.

[0046] Reference Figure 4 and Figure 6 As shown: The primary tensioning structure 32 also includes multiple guide components 323, which are divided into two groups. The two groups of guide components 323 are used to limit the movement of the two idler roller frames 321.

[0047] Specifically, the guide assembly 323 includes a guide sleeve 3231 and a first guide post 3232. The guide sleeve 3231 is connected to the spray box 1. The first guide post 3232 is perpendicular to the plane where the multiple idlers 31 are located. One end of the first guide post 3232 is connected to the idler frame 321, and the other end of the first guide post 3232 is slidably disposed in the guide sleeve 3231.

[0048] During the movement of the two idler roller frames 321 driven by the first tensioning assembly 322, if the movement of the two idler roller frames 321 fails to keep synchronized and tilting occurs, the force exerted on the aluminum plate by the two ends of the idler roller 31 will be inconsistent, which may lead to deformation of the aluminum plate. Therefore, multiple guide assemblies 323 are set. When the idler roller frame 321 moves under the drive of the first tensioning assembly 322, the idler roller frame 321 will drive the first guide post 3232 connected to the idler roller frame 321 to move synchronously. At this time, the sliding of the first guide post 3232 in the guide sleeve 3231 is restricted. The first guide post 3232 can only move along its own axis, ensuring that the idler roller frame 321 can only move on the predetermined path. This ensures that the two idler roller frames 321 can maintain synchronous movement during the movement, avoiding deformation of the aluminum plate caused by asynchronous movement.

[0049] Reference Figure 5 and Figure 7 As shown: The second tensioning assembly 334 includes a second double-ended lead screw 3341 that is perpendicular to the idler roller 31 and connected to both ends of the idler roller frame 321. A second moving block 3342 is provided on each of the two threaded portions of the second double-ended lead screw 3341. The second moving block 3342 is provided with a second drive plate 3343 for driving the slider 332 to move along the axial direction of the guide rod 331.

[0050] In the secondary tensioning structure 33, multiple first springs 333 are in a pre-compressed state, continuously providing the second tensioning assembly 334 with a force towards both ends of the guide rod 331. If the position of the slider 332 is not restricted, the elastic force of these first springs 333 may cause the slider 332 to move unintended along the guide rod 331. Therefore, a second double-ended lead screw 3341, a second moving block 3342, and a second drive plate 3343 are provided. When it is necessary to adjust the distance between two adjacent sliders 332, the second double-ended lead screw 3341 is rotated, and the two second moving blocks 3342 will move away from each other along the thread direction of the second double-ended lead screw 3341. As the two second drive plates 3343 move away from each other, the slider 332 will be pushed and move due to the continuous force of the first spring 333. The outermost slider 332 will always remain in contact with the corresponding second drive plate 3343. When the second drive plate 3343 stops moving further due to the stop of the second moving block 3342, the position of the second drive plate 3343 will be locked due to the self-locking characteristic of the thread between the second moving block 3342 and the second double-ended lead screw 3341. This effectively prevents the slider 332 from losing control due to the continuous force of the first spring 333.

[0051] Reference Figure 3 and Figure 8As shown: The spraying mechanism 4 also includes a synchronous moving structure 43. The synchronous moving structure 43 includes a mounting plate 431 disposed on the upper end of the spray pipe 41. The lower end of the mounting plate 431 is provided with a plurality of mounting brackets 4311 for mounting the spray pipe 41. Both ends of the mounting plate 431 are provided with connecting components 432 that are connected to the primary tensioning structure 32.

[0052] Two connecting components 432 respectively connect the mounting plate 431 to the two roller frames 321 in the primary tensioning structure 32. Multiple spray pipes 41 are respectively installed on the mounting frame 4311 to form a stable spray array. When the first tensioning component 322 is activated and drives the two roller frames 321 to move, the two roller frames 321 will synchronously drive the mounting plate 431 to move through the two connecting components 432. The movement of the mounting plate 431 will then drive all the spray pipes 41 installed on it to move synchronously, ensuring that the distance between the spray pipes 41 and the upper surface of the aluminum plate remains constant no matter how the aluminum plate is adjusted to the position by the primary tensioning structure 32. This achieves uniform coverage of the organic coating sprayed by the spray pipes 41 on the aluminum plate within a fixed range.

[0053] Reference Figure 8 , Figure 9 and Figure 10 As shown: The spraying mechanism 4 also includes an adjustment structure 44 for adjusting the distance between the spray pipe 41 and the upper surface of the aluminum plate.

[0054] Specifically, the adjustment structure 44 includes a third double-ended lead screw 441, two third moving blocks 442, and two third drive plates 443. The two ends of the third double-ended lead screw 441 are fixedly connected to two connecting components 432 respectively. The two third moving blocks 442 are respectively disposed on the two threaded portions of the third double-ended lead screw 441. The two third drive plates 443 are respectively hinged to the two third moving blocks 442, and the other end of the third drive plate 443 is hinged to the mounting plate 431.

[0055] To ensure uniform spraying of the organic coating on the aluminum plate surface, the distance between the spray pipe 41 and the aluminum plate needs to be maintained at a preset optimal fixed value. If the spray pipe 41 is directly fixed on the roller frame 321, it will be difficult to maintain a consistent spraying distance for aluminum plates of different thicknesses. When the aluminum plate is thick, the distance between the spray pipe 41 and the upper surface of the aluminum plate may be too close, affecting the spraying quality. Therefore, an adjustment structure 44 is set up. By driving the third double-headed screw 441 to rotate, the two third moving blocks 442 will move relative to each other along the third double-headed screw 441 and move closer to each other. The two third driving plates 443 apply a vertical force to the mounting plate 431, pulling the mounting plate 431 and the spray pipe 41 on it upward, adjusting the distance between the spray pipe 41 and the aluminum plate to the optimal fixed value, thereby achieving the same spraying effect of organic coating on aluminum plates of different thicknesses.

[0056] Reference Figure 9 and Figure 11 As shown: the connecting assembly 432 includes a U-shaped frame 4321 and a second guide post 4322; both ends of the U-shaped frame 4321 are connected to the primary tensioning structure 32; one end of the second guide post 4322 passes downward through the U-shaped frame 4321 and is connected to the mounting plate 431; the other end of the second guide post 4322 is fitted with a second spring 4323, and both ends of the second spring 4323 abut against the end of the second guide post 4322 and the U-shaped frame 4321, respectively.

[0057] If the connecting assembly 432 fixes the mounting plate 431 to the roller frame 321, the distance between the spray pipe 41 and the upper surface of the aluminum plate cannot be adjusted. Therefore, a U-shaped frame 4321, a second guide post 4322, and a second spring 4323 are provided. The adjustment structure 44 is installed on the two U-shaped frames 4321 in the two connecting assemblies 432. The mounting plate 431 is suspended on the two U-shaped frames 4321 by the adjustment structure 44. When the roller frame 321 moves, the U-shaped frame 4321 drives the adjustment structure 44 to move, which in turn drives the mounting plate 431 to move. When it is necessary to adjust the distance between the spray pipe 41 and the upper surface of the aluminum plate, the adjustment structure 44 works, and the second guide post 4322 can move along its own axis, so that the mounting plate 431 can move synchronously with the roller frame 321 and can also move independently.

[0058] A sealing method for a multi-specification adjustable automatic sealing device used in the anodizing of aluminum alloy templates, applicable to such a device, includes the following steps:

[0059] S1. The aluminum plate passes through the lower side of the guide roller 2 near the feed inlet, the upper side of multiple support rollers 31 and the lower side of the guide roller 2 near the discharge outlet in sequence inside the spray box 1.

[0060] S2. When the aluminum plate cannot be kept flat between the two guide rollers 2, the first-level tensioning structure 32 pushes multiple support rollers 31 to move upward, tensioning the aluminum plate, and the spray pipe sprays organic coating onto the horizontal aluminum plate.

[0061] S3, when the primary tensioning structure 32 reaches its maximum pushing stroke, if the aluminum plate is still not tensioned, the secondary tensioning structure 33 pushes multiple idlers 31 away from each other to further tension the aluminum plate in the horizontal direction.

[0062] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A multi-specification adjustable automatic sealing device for anodizing aluminum alloy templates, comprising a spray box with an inlet and an outlet at both ends, wherein guide rollers are provided at both ends inside the spray box, characterized in that, It also includes a tensioning mechanism disposed between the two guide rollers and a spraying mechanism located above the tensioning mechanism; The tensioning mechanism includes multiple parallel rollers that are parallel to each other and parallel to the guide rollers. The lower end of the rollers is provided with a primary tensioning structure for tensioning the aluminum plate in the vertical direction, and the two ends of the rollers are provided with a secondary tensioning structure for tensioning the aluminum plate in the horizontal direction. The spraying mechanism includes multiple spray pipes that are parallel to each other and parallel to the idler rollers, and a liquid supply structure for simultaneously supplying spray liquid to the multiple spray pipes. The primary tensioning structure includes two idler roller frames arranged at the same height and a first tensioning assembly. Two idler roller frames are respectively installed at both ends of the idler roller, and the idler roller frames are connected to the idler roller; The first tensioning assembly is connected to the two idler roller frames and is used to drive the two idler roller frames to lift and lower synchronously. The secondary tensioning structure includes a guide rod and a second tensioning assembly. The axis of the guide rod is along the moving direction of the aluminum plate. Multiple sliders connected to multiple rollers are slidably arranged on the guide rod. A first spring is arranged between two adjacent sliders. The second tensioning assembly is connected to two sliders at both ends of the guide rod. The first tensioning assembly includes a first double-ended lead screw parallel to the idler roller and connected to the spray box. A first moving block is provided on each of the two threaded portions of the first double-ended lead screw. A first drive plate is hinged to the first moving block to convert the horizontal movement of the first moving block into the vertical movement of the idler roller frame. The primary tensioning structure also includes multiple guide assemblies, which are divided into two groups. The two groups of guide assemblies are used to limit the movement of the two idler roller frames. The second tensioning assembly includes a second double-ended lead screw perpendicular to the idler roller and connected to both ends of the idler roller frame. A second moving block is provided on each of the two threaded portions of the second double-ended lead screw. A second drive plate is provided on the second moving block to drive the slider to move along the axis of the guide rod. The spraying mechanism also includes an adjustment structure for adjusting the distance between the spray pipe and the upper surface of the aluminum plate. The spraying mechanism also includes a synchronous movement structure. The synchronous movement structure includes a mounting plate provided at the upper end of the spray pipe. Multiple mounting brackets for mounting the spray pipe are provided at the lower end of the mounting plate. Connecting assemblies connected to the primary tensioning structure are provided at both ends of the mounting plate.

2. The multi-specification adjustable automatic sealing device for anodizing aluminum alloy templates according to claim 1, characterized in that, The connecting components include a U-shaped bracket and a second guide post; The two ends of the U-shaped frame are connected to the primary tensioning structure; One end of the second guide post passes downward through the U-shaped frame and connects to the mounting plate. The other end of the second guide post is fitted with a second spring, and the two ends of the second spring abut against the end of the second guide post and the U-shaped frame, respectively.

3. A sealing method for a multi-specification adjustable automatic sealing device for anodizing aluminum alloy templates, applicable to the multi-specification adjustable automatic sealing device for anodizing aluminum alloy templates as described in any one of claims 1-2, characterized in that... Includes the following steps: S1. The aluminum plate passes through the lower side of the guide roller near the feed inlet, the upper side of multiple support rollers, and the lower side of the guide roller near the discharge outlet in sequence inside the spray box. S2. When the aluminum plate cannot be kept flat between the two guide rollers, the primary tensioning structure pushes multiple rollers to move upward, tensioning the aluminum plate, and the spray pipe sprays organic coating onto the horizontal aluminum plate. S3, when the primary tensioning structure reaches its maximum push stroke, if the aluminum plate is still not tensioned, the secondary tensioning structure pushes multiple rollers away from each other to further tension the aluminum plate in the horizontal direction.

Images