Film covering device for advertising board processing

By designing an automated laminating device, the problems of adjusting the cutting position and cleaning up debris during billboard laminating were solved, achieving an efficient and safe cutting and cleaning process.

CN223835044UActive Publication Date: 2026-01-27SHANDONG TONGGUANG MEDIA CO LTD
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Patent Information

Application Number
CN202520277403.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2026-01-27
Estimated Expiration
2035-02-20

AI Technical Summary

Technical Problem

Existing billboard laminating equipment cannot flexibly adjust the cutting position, and the debris after cutting is inconvenient to clean up, posing a safety hazard.

Method used

A film-coating device comprising a base, a transmission belt, a ring frame, a guillotine, and a drive assembly was designed. The guillotine is moved and cut by a motor and an electric push rod, and the residue is cleaned by a vacuum system, thus achieving automated cutting and cleaning.

Benefits of technology

It enables flexible adjustment and automated cleaning of the billboard film cutting position, improving work efficiency and avoiding the safety hazards of manual operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of advertising board film covering, and particularly relates to a film covering device for advertising board processing, which comprises a base, a transmission belt is arranged in the base, an annular frame is rotatably mounted on the top surface of a protective cover, and a fixing plate is fixedly mounted on the bottom surface of the annular frame; two sliding plates are installed on the outer side wall of the two-way threaded rod in a threaded mode, two first electric push rods are fixedly installed on the bottom faces of the two sliding plates correspondingly, knife switches are arranged below the two sliding plates correspondingly, a third motor is fixedly installed on the other side of the interior of the fixing plate, and one end of an output shaft of the third motor is fixedly connected with one end of the two-way threaded rod. Two knife switches are moved according to the width needing to be cut, then the two knife switches are driven by a plurality of first electric push rods to press downwards to cut off redundant parts, and the equipment solves the problems that most equipment can only cut covering films at the head and tail parts of an advertising board, and the cutting position cannot be adjusted. And the working efficiency is greatly improved.
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Description

Technical Field

[0001] This utility model belongs to the field of billboard coating technology, and in particular relates to a coating device for billboard processing. Background Technology

[0002] Advertising has the functions of rapidly enhancing corporate image, disseminating commercial information, and establishing city image. The advantage of advertising is that it is highly selective in terms of region and consumers, and the form of advertising can be selected according to the characteristics of the region. In order to preserve the words and pictures printed on billboards for a long time and avoid the words becoming blurred due to moisture, it is necessary to apply a film coating process to the surface of the billboards.

[0003] In existing equipment, when cutting excess film on billboards, most methods can only cut the film at the beginning and end of the billboard, and the cutting position cannot be adjusted. The excess parts on both sides need to be cut manually, which is very inconvenient. During the cutting of the billboard, some small fragments fall and remain on the surface of the equipment. However, the equipment has sharp blades inside, and manual cleaning may result in cuts from the blades. In view of this, we propose a film-coating device for billboard processing. Utility Model Content

[0004] The purpose of this invention is to provide a film-coating device for billboard processing, so as to solve the problems mentioned in the background art.

[0005] In view of this, the present invention provides a laminating device for billboard processing, comprising:

[0006] A base, a protective cover is fixedly installed on the outer side wall of the base, a transmission belt is provided inside the base, a ring frame is rotatably installed on the top surface of the protective cover, and a fixing plate is fixedly installed on the bottom surface of the ring frame;

[0007] The mounting base is fixedly installed inside one side of the fixed plate. A bidirectional threaded rod is rotatably installed inside the mounting base. The two threads on the bidirectional threaded rod have opposite directions of rotation. Two sliding plates are threadedly installed on the outer wall of the bidirectional threaded rod. Two first electric push rods are fixedly installed on the bottom surface of each of the two sliding plates. A gate is provided below each of the two sliding plates. The top surface of each of the two gates is fixedly connected to the bottom end of the multiple first electric push rods. A third motor is fixedly installed on the other side of the fixed plate. One end of the output shaft of the third motor is fixedly connected to one end of the bidirectional threaded rod.

[0008] A drive assembly is disposed on the top surface of the protective cover and is used to drive the ring frame to rotate.

[0009] In the above technical solution, the driving component further includes a first gear, which is fixedly installed on the top surface of the ring frame. A mounting box is fixedly installed on the top surface of the protective cover. A second gear is rotatably installed on the top surface of the mounting box. The second gear meshes with the first gear. A second motor is fixedly installed inside the mounting box. The top end of the output shaft of the second motor is fixedly connected to the bottom end of the second gear.

[0010] In the above technical solution, further, the top surface of the base has two square slots, one of which has a slide rod fixedly installed, and the other has a threaded rod rotatably installed. The same mounting box is slidably installed between the two square slots. A second electric push rod is fixedly installed on both sides of the bottom surface of the mounting box. A slider is fixedly installed at the bottom end of each of the two second electric push rods. One slider is slidably connected to the outer wall of the slide rod, and the other slider is threadedly connected to the outer wall of the threaded rod. A bearing plate is fixedly installed on one side of the base, and a first motor is fixedly installed on the top surface of the bearing plate. One end of the output shaft of the first motor is fixedly connected to one end of the threaded rod.

[0011] In the above technical solution, further, the mounting box has a first cavity and a second cavity. A vacuum head is fixedly installed on the top surface of the first cavity, a vacuum hose is fixedly installed on one side of the vacuum head, a vacuum cleaner is fixedly installed on one side of the mounting box, one end of the vacuum hose is fixedly connected to one side of the vacuum cleaner, and two third electric push rods are fixedly installed on the inner side wall of the second cavity. One end of the two third electric push rods is fixedly installed with the same baffle, and a brush is fixedly installed on the outer side wall of the baffle.

[0012] In the above technical solution, two partitions are fixedly installed on the top surface of the base, and openings are provided on both sides of the mounting box. The inner sidewalls of the two openings are slidably connected to the outer sidewalls of the two partitions respectively.

[0013] In the above technical solution, a fixing seat is fixedly installed on one side of the inner side of the protective cover, and an installation rod is rotatably installed inside the fixing seat. A film-coated barrel roll is movably sleeved on the outer side wall of the installation rod. An iron plate is provided at one end of the installation rod. A bearing seat is fixedly installed on the other side of the inner side of the protective cover. A magnet is provided on the inner side wall of the bearing seat. The installation rod is movably sleeved in the bearing seat and the iron plate is attracted to the magnet.

[0014] In the above technical solution, further, two mounting rollers are provided on one side of the protective cover, and limit blocks are fixedly installed at both ends of the two mounting rollers. Multiple limit blocks are slidably installed on one side of the protective cover, and reset springs are fixedly installed on the opposite side of the multiple limit blocks. Multiple mounting blocks are fixedly installed on one side of the protective cover, and the opposite ends of the multiple reset springs are respectively fixedly connected to the opposite side of the multiple mounting blocks.

[0015] In the above technical solution, a mounting groove is further provided on one side of the base, and the mounting groove is fitted into the mounting box.

[0016] The beneficial effects of this utility model are:

[0017] 1. This billboard laminating device, when in use, transports the billboard into the equipment via a conveyor belt. A portion of the laminating roll on the mounting rod is pulled out and applied to the billboard. First, the third motor is started, driving a bidirectional threaded rod to rotate. This moves two blades according to the required cutting width. Then, multiple first electric push rods drive the two blades downwards to cut off the excess. The first electric push rods then drive the two blades upwards. Next, the second motor is started, driving a second gear to rotate. The second gear meshes with the first gear, rotating a ring frame 90 degrees. Again, the two blades are moved according to the required cutting width, and multiple first electric push rods drive the two blades downwards to cut off the excess. Finally, the laminated billboard is conveyed out via the conveyor belt. This equipment solves the problem that most equipment can only cut the lamination at the beginning and end of the billboard and cannot adjust the cutting position, significantly improving work efficiency.

[0018] 2. The laminating device for billboard processing, after use, retracts the two gates, activates the two second electric push rods to raise the mounting box above the top surface of the base, and starts the vacuum cleaner on the mounting box. The vacuum cleaner uses its suction head to vacuum the surface of the base and the transmission belt. The two third electric push rods extend the baffles, and the brushes on the baffles contact the surface of the base and the transmission belt. Then, the first motor is started to drive the threaded rod to rotate. As the threaded rod rotates, it moves the mounting box on the base. After the brushes clean the surface, the vacuum cleaner sucks up the remaining dust or laminating debris, keeping the table clean and preventing foreign matter from getting into the billboard during lamination, which would affect the lamination effect. This has practical benefits. Attached Figure Description

[0019] Figure 1 This is one of the overall structural schematic diagrams of this utility model;

[0020] Figure 2 This is the second schematic diagram of the overall structure of this utility model;

[0021] Figure 3 This is a schematic diagram of a half-section structure in this utility model;

[0022] Figure 4 This is a schematic diagram of the mounting rod and bearing seat structure in this utility model;

[0023] Figure 5 This is a schematic diagram of the overall structure of the mounting box in this utility model;

[0024] Figure 6 This is one of the overall top view structural schematic diagrams of this utility model;

[0025] Figure 7 This is the second schematic diagram of the overall top view of this utility model.

[0026] The markings in the diagram are as follows:

[0027] 1. Protective cover; 2. Base; 3. Ring frame; 4. First gear; 5. Second gear; 6. Mounting block; 7. Return spring; 8. Limiting block; 9. Mounting roller; 10. Transmission belt; 11. First motor; 12. Bearing plate; 13. Second motor; 14. Mounting box; 15. Fixing plate; 16. Bidirectional threaded rod; 17. Third motor; 18. Mounting seat; 19. Sliding plate; 20. First electric push rod; 21. Brake 21. Knife; 22. Fixed base; 23. Mounting rod; 24. Bearing base; 25. Partition; 26. Mounting box; 27. Vacuum cleaner; 28. First cavity; 29. ​​Second cavity; 30. Baffle; 31. Vacuum head; 32. Opening slot; 33. Vacuum hose; 34. Brush; 35. Threaded rod; 36. Slider; 37. Second electric push rod; 38. Slide rod; 39. Square slot; 40. Third electric push rod; 41. Mounting slot. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0029] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0030] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0031] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0032] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0033] Example 1:

[0034] Please see Figure 1-7 As shown in the figure, this embodiment provides a laminating device for billboard processing.

[0035] include:

[0036] A base 2 has a protective cover 1 fixedly installed on its outer wall. A transmission belt 10 is installed inside the base 2. A ring frame 3 is rotatably mounted on the top surface of the protective cover 1, and a fixing plate 15 is fixedly mounted on the bottom surface of the ring frame 3. A mounting seat 18 is fixedly installed inside one side of the fixing plate 15. A bidirectional threaded rod 16 is rotatably mounted inside the mounting seat 18. The two threads on the bidirectional threaded rod 16 have opposite directions. Two sliding plates 19 are threadedly mounted on the outer wall of the bidirectional threaded rod 16. Two first electric push rods 20 are fixedly mounted on the bottom surface of each of the two sliding plates 19. A gate 21 is located below each of the two sliding plates 19. The top surfaces of the two gates 21 are fixedly connected to the bottom ends of the multiple first electric push rods 20. A third motor 17 is fixedly mounted on the other side of the inside of the fixing plate 15. One end of the output shaft of the third motor 17 is fixedly connected to one end of the bidirectional threaded rod 16. A drive assembly is located on the top surface of the protective cover 1 and is used to drive the ring frame 3 to rotate. When the equipment is in use, the transmission belt 10... The billboard is conveyed into the equipment. A portion of the film-coating roll on the mounting rod 23 is pulled out and applied to the billboard. First, the third motor 17 is started, which drives the bidirectional threaded rod 16 to rotate. The two blades 21 are moved according to the required cutting width. Then, multiple first electric push rods 20 drive the two blades 21 to press down and cut off the excess. The multiple first electric push rods 20 drive the two blades 21 to rise. Then, the second motor 13 is started, which drives the second gear 5 to rotate. The second gear 5 meshes with the first gear 4, driving the ring frame 3 to rotate. The ring frame 3 is rotated 90 degrees. The two blades 21 are moved according to the required cutting width. The multiple first electric push rods 20 drive the two blades 21 to press down and cut off the excess. Finally, the film-coated billboard is sent out via the transmission belt 10. This equipment solves the problem that most equipment can only cut the film at the beginning and end of the billboard and cannot adjust the cutting position, greatly improving work efficiency.

[0037] Example 2:

[0038] This embodiment provides a laminating device for billboard processing, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0039] The drive assembly includes a first gear 4, which is fixedly mounted on the top surface of the ring frame 3. A mounting box 14 is fixedly mounted on the top surface of the protective cover 1. A second gear 5 is rotatably mounted on the top surface of the mounting box 14, and the second gear 5 meshes with the first gear 4. A second motor 13 is fixedly mounted inside the mounting box 14. The top end of the output shaft of the second motor 13 is fixedly connected to the bottom end of the second gear 5. When the second motor 13 is started, it drives the second gear 5 to rotate. The second gear 5 meshes with the first gear 4, causing the ring frame 3 to rotate 90 degrees. Then, the two blades 21 are moved according to the required cutting width. Then, multiple first electric push rods 20 drive the two blades 21 to press down and cut off the excess part. Finally, the coated billboard is sent out through the transmission belt 10. This equipment solves the problem that most equipment can only cut the coating of the beginning and end of the billboard and cannot adjust the cutting position, greatly improving work efficiency.

[0040] Example 3:

[0041] This embodiment provides a laminating device for billboard processing, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0042] The base 2 has two square slots 39 on its top surface. A slide rod 38 is fixedly installed in one square slot 39, and a threaded rod 35 is rotatably installed in the other square slot 39. A mounting box 26 is slidably installed between the two square slots 39. A second electric push rod 37 is fixedly installed on both sides of the bottom surface of the mounting box 26. A slider 36 is fixedly installed at the bottom end of each of the two second electric push rods 37. One slider 36 is slidably connected to the outer wall of the slide rod 38, and the other slider 36 is threadedly connected to the outer wall of the threaded rod 35. A support plate 12 is fixedly installed on one side of the base 2, and a first motor 11 is fixedly installed on the top surface of the support plate 12. One end of the output shaft of the first motor 11 is fixedly connected to one end of the threaded rod 35. When the first motor 11 is started, it drives the threaded rod 35 to rotate. While the threaded rod 35 is rotating, it drives the mounting box 26 to move on the base 2. After the brush 34 sweeps the surface, the vacuum cleaner 27 sucks out the residual dust or film fragments, keeping the table clean and preventing debris from getting mixed in when applying film to the billboard, which would affect the filming effect. This has practical benefits.

[0043] Example 4:

[0044] This embodiment provides a laminating device for billboard processing, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0045] The mounting box 26 has a first cavity 28 and a second cavity 29. A vacuum cleaner head 31 is fixedly installed on the top surface of the first cavity 28, and a vacuum hose 33 is fixedly installed on one side of the vacuum cleaner head 31. A vacuum cleaner 27 is fixedly installed on one side of the mounting box 26, and one end of the vacuum hose 33 is fixedly connected to one side of the vacuum cleaner 27. Two third electric push rods 40 are fixedly installed on the inner wall of the second cavity 29, and a common baffle 30 is fixedly installed on one end of each of the two third electric push rods 40. The outer wall of the baffle 30 is fixedly... Equipped with a brush 34, the vacuum cleaner 27 on the mounting box 26 is started. The vacuum cleaner 27 uses the vacuum head 31 to vacuum the surface of the base 2 and the surface of the transmission belt 10. The two third electric push rods 40 extend the baffle 30, and the brush 34 on the baffle 30 contacts the surface of the base 2 and the surface of the transmission belt 10. After the brush 34 sweeps the surface, the vacuum cleaner 27 sucks out the residual dust or film fragments, keeping the table clean and preventing debris from getting mixed in when applying film to the billboard, which would affect the filming effect. This has practical benefits.

[0046] Example 5:

[0047] This embodiment provides a laminating device for billboard processing, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0048] The base 2 has two partitions 25 fixedly installed on its top surface. The mounting box 26 has opening slots 32 on both sides. The inner sidewalls of the two opening slots 32 are slidably connected to the outer sidewalls of the two partitions 25 respectively. The two partitions 25 can effectively prevent dust or film fragments from being swept into the two square slots 39 when the brush 34 is cleaning. It is simple and practical.

[0049] Example 6:

[0050] This embodiment provides a laminating device for billboard processing, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0051] The protective cover 1 has a fixed base 22 installed on one side inside, and an installation rod 23 is rotatably installed inside the fixed base 22. A film-coated roll is movably sleeved on the outer wall of the installation rod 23. One end of the installation rod 23 is provided with an iron plate. The other side of the protective cover 1 has a support base 24 fixedly installed inside, and a magnet is provided on the inner wall of the support base 24. The installation rod 23 is movably sleeved in the support base 24 and the iron plate is attracted to the magnet, which makes it convenient to replace the film-coated roll when it is used up. The magnetic connection method makes it easy to install and replace quickly and simply.

[0052] Example 7:

[0053] This embodiment provides a laminating device for billboard processing, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0054] The protective cover 1 has two mounting rollers 9 on one side, and limit blocks 8 are fixedly installed at both ends of the two mounting rollers 9. Multiple limit blocks 8 are slidably installed on one side of the protective cover 1. Reset springs 7 are fixedly installed on the opposite side of the multiple limit blocks 8. Multiple mounting blocks 6 are fixedly installed on one side of the protective cover 1. The opposite ends of the multiple reset springs 7 are respectively fixedly connected to the opposite side of the multiple mounting blocks 6. After the billboard is covered with film, the transmission belt 10 sends the billboard into the two mounting rollers 9. After the billboard comes out from the two mounting rollers 9, the billboard and the film are more tightly adhered due to the mutual squeezing of the two mounting rollers 9, which has practical benefits.

[0055] Example 8:

[0056] This embodiment provides a laminating device for billboard processing, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0057] The base 2 has a mounting slot 41 on one side, which fits into the mounting box 26. When not in use, the mounting box 26 can be moved into the mounting slot 41 without affecting the normal use of the equipment. When in use, the mounting box 26 can be raised by two second electric push rods 37 to clean the table and keep it clean. This prevents debris from getting into the billboard when it is being laminated, which would affect the lamination effect. This has practical benefits.

[0058] In use: When the equipment is in use, the billboard is transported into the equipment via the transmission belt 10. A portion of the film-coating roll on the mounting rod 23 is pulled out and covered on the billboard. First, the third motor 17 is started, which drives the bidirectional threaded rod 16 to rotate. The two blades 21 are moved according to the required cutting width. Then, multiple first electric push rods 20 drive the two blades 21 to press down and cut off the excess. The multiple first electric push rods 20 drive the two blades 21 to rise. Then, the second motor 13 is started, which drives the second gear 5 to rotate. The second gear 5 meshes with the first gear 4 and drives the ring frame 3 to rotate. The ring frame 3 is rotated 90 degrees. The two blades 21 are moved according to the required cutting width. The multiple first electric push rods 20 drive the two blades 21 to press down and cut off the excess. Finally, the film-coated billboard is sent out via the transmission belt 10. This equipment solves the problem that most equipment can only cut the film at the beginning and end of the billboard and cannot adjust the cutting position, greatly improving work efficiency.

[0059] After the equipment is used, the two switches 21 are retracted, and the two second electric push rods 37 are activated to raise the mounting box 26 to the top surface of the base 2. The vacuum cleaner 27 on the mounting box 26 is then activated, and the vacuum cleaner 27 uses the vacuum head 31 to vacuum the surface of the base 2 and the surface of the transmission belt 10. The two third electric push rods 40 extend the baffle 30, and the brush 34 on the baffle 30 contacts the surface of the base 2 and the surface of the transmission belt 10. Then, the first motor 11 is activated to drive the threaded rod 35 to rotate. As the threaded rod 35 rotates, it moves the mounting box 26 on the base 2. After the brush 34 sweeps the surface, the vacuum cleaner 27 sucks out the remaining dust or film fragments, keeping the table clean and preventing debris from getting mixed in when applying film to the billboard, which would affect the filming effect. This has practical benefits.

[0060] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A laminating device for billboard processing, characterized in that, include: The base (2) has a protective cover (1) fixedly installed on its outer side wall. The base (2) has a transmission belt (10) inside it. The top surface of the protective cover (1) is rotatably mounted with a ring frame (3). The bottom surface of the ring frame (3) is fixedly mounted with a fixing plate (15). Mounting base (18), the mounting base (18) is fixedly installed inside one side of the fixing plate (15), a bidirectional threaded rod (16) is rotatably installed inside the mounting base (18), the two threads on the bidirectional threaded rod (16) have opposite directions of rotation, two sliding plates (19) are threadedly installed on the outer side wall of the bidirectional threaded rod (16), two first electric push rods (20) are fixedly installed on the bottom surface of the two sliding plates (19), a gate (21) is provided below the two sliding plates (19), the top surface of the two gates (21) is fixedly connected to the bottom end of the multiple first electric push rods (20) respectively, a third motor (17) is fixedly installed on the other side of the interior of the fixing plate (15), one end of the output shaft of the third motor (17) is fixedly connected to one end of the bidirectional threaded rod (16); A drive assembly is disposed on the top surface of the protective cover (1) and is used to drive the ring frame (3) to rotate.

2. The laminating device for billboard processing according to claim 1, characterized in that, The drive assembly includes a first gear (4), which is fixedly mounted on the top surface of the ring frame (3). A mounting box (14) is fixedly mounted on the top surface of the protective cover (1). A second gear (5) is rotatably mounted on the top surface of the mounting box (14). The second gear (5) meshes with the first gear (4). A second motor (13) is fixedly mounted inside the mounting box (14). The top end of the output shaft of the second motor (13) is fixedly connected to the bottom end of the second gear (5).

3. The laminating device for billboard processing according to claim 1, characterized in that, The top surface of the base (2) has two square slots (39). A slide rod (38) is fixedly installed in one of the square slots (39), and a threaded rod (35) is rotatably installed in the other square slot (39). The same mounting box (26) is slidably installed between the two square slots (39). A second electric push rod (37) is fixedly installed on both sides of the bottom surface of the mounting box (26). A slider (36) is fixedly installed at the bottom end of each of the two second electric push rods (37). One slider (36) is slidably connected to the outer wall of the slide rod (38), and the other slider (36) is threadedly connected to the outer wall of the threaded rod (35). A bearing plate (12) is fixedly installed on one side of the base (2). A first motor (11) is fixedly installed on the top surface of the bearing plate (12). One end of the output shaft of the first motor (11) is fixedly connected to one end of the threaded rod (35).

4. The laminating device for billboard processing according to claim 3, characterized in that, The mounting box (26) has a first cavity (28) and a second cavity (29). A vacuum head (31) is fixedly installed on the top surface of the first cavity (28). A vacuum hose (33) is fixedly installed on one side of the vacuum head (31). A vacuum cleaner (27) is fixedly installed on one side of the mounting box (26). One end of the vacuum hose (33) is fixedly connected to one side of the vacuum cleaner (27). Two third electric push rods (40) are fixedly installed on the inner side wall of the second cavity (29). One end of the two third electric push rods (40) is fixedly installed with the same baffle (30). A brush (34) is fixedly installed on the outer side wall of the baffle (30).

5. A laminating device for billboard processing according to claim 4, characterized in that, Two partitions (25) are fixedly installed on the top surface of the base (2). Opening slots (32) are provided on both sides of the mounting box (26). The inner sidewalls of the two opening slots (32) are slidably connected to the outer sidewalls of the two partitions (25).

6. A laminating device for billboard processing according to claim 1, characterized in that, A fixing seat (22) is fixedly installed on one side of the inside of the protective cover (1). An installation rod (23) is rotatably installed inside the fixing seat (22). A film-coated barrel roll is movably sleeved on the outer side wall of the installation rod (23). An iron plate is provided at one end of the installation rod (23). A bearing seat (24) is fixedly installed on the other side of the inside of the protective cover (1). A magnet is provided on the inner side wall of the bearing seat (24). The installation rod (23) is movably sleeved in the bearing seat (24) and the iron plate is attracted to the magnet.

7. A laminating device for billboard processing according to claim 1, characterized in that, Two mounting rollers (9) are provided on one side of the protective cover (1). Limiting blocks (8) are fixedly installed at both ends of the two mounting rollers (9). Multiple limiting blocks (8) are slidably installed on one side of the protective cover (1). Reset springs (7) are fixedly installed on the opposite side of the multiple limiting blocks (8). Multiple mounting blocks (6) are fixedly installed on one side of the protective cover (1). The opposite ends of the multiple reset springs (7) are respectively fixedly connected to the opposite side of the multiple mounting blocks (6).

8. A laminating device for billboard processing according to claim 1, characterized in that, The base (2) has an installation groove (41) on one side, which is fitted into the mounting box (26).