Back adhesive aluminum film paving device

By designing a glue-back aluminum film laying device including flexible mesh plates and finale, vacuum and rolling technology are used to solve the problems of low efficiency and poor quality of manual laying, and efficient and even laying of glue-back aluminum film is achieved, suitable for large-size carbon fiber boards.

CN222554482UActive Publication Date: 2025-03-04CARERAY DIGITAL MEDICAL TECH CO LTD
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Patent Information

Application Number
CN202420625585.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-29
Publication Date
2025-03-04
Estimated Expiration
2034-03-29

AI Technical Summary

Technical Problem

In the prior art, manual patching of glue-back aluminum films has problems such as low efficiency and easy generation of bubbles, wrinkles and particle impurities, resulting in poor problems in detecting X-ray images.

Method used

A glue-back aluminum film laying device is designed, including an upper cover, a lower cover and a first vacuum device. By providing a flexible mesh plate and a finale on the lower cover, vacuum and rolling technology are used to make the glue-back aluminum film evenly adhere to the carbon fiber board.

Benefits of technology

It realizes efficient and even laying of glue-backed aluminum film, avoids bubbles, wrinkles and impurities, improves laying efficiency and quality, and is suitable for laying large-size carbon fiber boards.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a gum aluminum film paving device which comprises an upper cover, a lower cover and a first vacuumizing device, and the first surface of the upper cover is used for loading a carbon fiber plate; the lower cover is a shell internally provided with a cavity, a window is formed in the upper surface of the lower cover, and a flexible screen plate is arranged on the window and used for containing a gum aluminum film. The first vacuumizing device is used for vacuumizing the cavity; the upper cover has a first state and a second state relative to the lower cover, and when the upper cover is used in the first state, the upper cover is separated from the lower cover; when the upper cover is used in the second state, the upper cover is buckled on the lower cover, the first surface of the upper cover is opposite to the upper surface of the lower cover, and a gap is formed between the carbon fiber plate and the gum aluminum film; a pressing shaft is arranged below the flexible screen plate, and the pressing shaft is driven by a driving mechanism to move from one end of the flexible screen plate to the other end of the flexible screen plate. The device can be used for paving the large-size back glue aluminum film, and is high in efficiency and good in paving quality.
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Description

Technical Field

[0001] The utility model relates to the technical field of automated production, in particular to a device for paving adhesive-backed aluminum films. Background Art

[0002] Adhesive-backed aluminum film is inexpensive and is often used as a conductive and electromagnetic shielding material. It is about 0.05-0.1mm thick and contains adhesive on the back. Carbon fiber flat panels are widely used in modern medical devices. Since the carbon fiber plate itself is not conductive, if it is directly installed in a medical flat panel detector, it will cause electrical signal failure in the detector. Therefore, an adhesive-backed aluminum film is usually attached to the back of the carbon fiber flat panel to achieve the role of conductivity and electromagnetic shielding.

[0003] Aluminum film is pasted on the carbon fiber flat plate, which is required to be flat, wrinkle-free, bubble-free and impurity-free. This can ensure good conductivity inside the detector on the one hand, and prevent the detector from having shadows, bad lines, black spots, bad clusters and other adverse problems when passing through X-ray image detection on the other hand.

[0004] However, currently the aluminum film is mainly laid on the carbon fiber flat plate by manual laying, which is time-consuming and labor-intensive. After laying, bubbles, wrinkles and particle impurities are easily formed between the surface of the carbon fiber flat plate and the aluminum film, and rework and re-laying are often required, wasting materials and labor time.

[0005] The disclosure of the above background technology content is only used to assist in understanding the concept and technical solution of the utility model. It does not necessarily belong to the prior art of this patent application, nor does it necessarily provide technical guidance. In the absence of clear evidence that the above content has been disclosed before the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Utility Model Content

[0006] The utility model aims to provide a self-adhesive aluminum film paving device, which can be used for paving large-size self-adhesive aluminum films and has high efficiency and good paving quality.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0008] A self-adhesive aluminum film paving device comprises an upper cover, a lower cover and a first vacuum device, wherein a first surface of the upper cover is configured to load a carbon fiber plate;

[0009] The lower cover is a shell with a cavity inside, a window is provided on the upper surface of the shell, a flexible mesh is provided on the window, and the flexible mesh is configured to place an adhesive-backed aluminum film;

[0010] The air inlet end of the first vacuum pumping device is connected to the cavity of the lower cover and is configured to vacuum the cavity;

[0011] The upper cover is configured to have a first state and a second state relative to the lower cover, when the upper cover is configured to be in the first state, the upper cover is separated from the lower cover; when the upper cover is configured to be in the second state, the upper cover is buckled on the lower cover, the first surface is arranged opposite to the upper surface of the lower cover, and a gap is arranged between the first surface and the upper surface of the lower cover;

[0012] A pressing shaft is arranged below the flexible mesh plate, and the distance from the axis line of the pressing shaft to the first surface is not greater than the sum of the gap, the thickness of the flexible mesh plate and the radius of the pressing shaft. The pressing shaft moves from one end of the flexible mesh plate to the other end of the flexible mesh plate under the drive of the driving mechanism.

[0013] Further, based on any one of the above-mentioned technical solutions or a combination of multiple technical solutions, the gap is 0.1mm to 0.5mm larger than the sum of the thicknesses of the carbon fiber plate and the adhesive-backed aluminum film; and / or,

[0014] The pressing shaft is driven by a driving mechanism to roll from one end of the flexible web plate to the other end of the flexible web plate.

[0015] Further, based on any one of the above-mentioned technical solutions or a combination of multiple technical solutions, the upper cover is provided with a plurality of through holes penetrating the first surface;

[0016] The adhesive-backed aluminum film paving device further includes a second vacuum pumping device, an air inlet end of the second vacuum pumping device is configured to communicate with the through hole, and the second vacuum pumping device is configured to vacuum the through hole.

[0017] Furthermore, based on any one of the technical solutions or a combination of multiple technical solutions mentioned above, the adhesive-backed aluminum film paving device also includes a flipping mechanism, and the flipping mechanism is configured to flip the upper cover so that the upper cover switches from the first state to the second state or from the second state to the first state.

[0018] Further, based on any one of the technical solutions or a combination of multiple technical solutions described above, the upper cover and the lower cover are both horizontally arranged, and when the upper cover is configured in the first state, its first surface is configured to face upward, and when the upper cover is configured in the second state, its first surface is configured to face downward.

[0019] Further, based on any one of the above-mentioned technical solutions or a combination of multiple technical solutions, the flip mechanism includes a motor, a first rotating shaft, a first gear and a second gear; wherein the motor is configured to drive the second gear to rotate; the second gear is meshed and connected with the first gear, thereby driving the first gear to rotate, and the first gear is coaxially arranged with the first rotating shaft and fixedly connected;

[0020] The upper cover is fixedly connected to the first rotating shaft, and the upper cover is also configured to be fixedly connected to the first gear. The connection point between the upper cover and the first gear is not on the axis of the first gear.

[0021] Further, based on any one of the technical solutions or a combination of multiple technical solutions mentioned above, the distance from the connection point between the upper cover and the first gear to the axial center line of the first gear is not less than 1 / 3 of the pitch circle radius of the first gear.

[0022] Further, based on any one of the technical solutions or a combination of multiple technical solutions mentioned above, the adhesive-backed aluminum film paving device also includes a transfer mechanism, and the transfer mechanism is configured to perform a transfer operation on the upper cover so that the upper cover is switched from the first state to the second state or from the second state to the first state.

[0023] Further, based on any one of the technical solutions or a combination of multiple technical solutions mentioned above, the upper cover and the lower cover are both arranged horizontally, and when the upper cover is configured in the first state and the second state, the first surface thereof is configured downward.

[0024] Further, based on any one of the technical solutions or a combination of multiple technical solutions mentioned above, the adhesive-backed aluminum film paving device also includes a locking device, and the locking device is configured to fix the upper cover on the lower cover.

[0025] Further, based on any one of the technical solutions or a combination of multiple technical solutions mentioned above, the locking device is arranged on the lower cover, and includes a base and a rotating buckle. The base is fixedly arranged on the lower cover, and the rotating buckle is configured to rotate relative to the base and be pressed on the upper cover.

[0026] The beneficial effects brought by the technical solution provided by the utility model are as follows:

[0027] a. The utility model sets a flexible mesh plate on the lower cover, and when the upper cover is buckled on the lower cover, a gap is set between the carbon fiber plate and the adhesive aluminum film. The flexible mesh plate and the adhesive aluminum film adsorbed on the surface of the flexible mesh plate are moved or rolled from one end by a pressing shaft, so that the adhesive aluminum film is evenly attached to the carbon fiber plate, the surface is flat, and no bubbles and wrinkles are generated. The paving quality is good and it is suitable for paving the adhesive aluminum film of large-sized carbon fiber plates;

[0028] b. The adhesive-backed aluminum film paving device provided by the utility model can replace manual paving, greatly shorten the paving time and avoid rework and repair, save materials, reduce production costs, and has a simple structure and high paving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A schematic top view of a self-adhesive aluminum film paving device provided for an exemplary embodiment of the utility model;

[0031] Figure 2 The upper cover provided for an exemplary embodiment of the utility model is a front view schematic diagram of a self-adhesive aluminum film paving device in a first state;

[0032] Figure 3 The upper cover provided for an exemplary embodiment of the utility model is a front schematic view of the adhesive-backed aluminum film paving device in the second state.

[0033] Among them, the figure marks include: 1-upper cover, 11-first surface, 111-through hole, 12-handle, 2-lower cover, 21-window, 22-flexible mesh plate, 23-pressing shaft, 31-first vacuum pumping device, 32-second vacuum pumping device, 4-carbon fiber plate, 51-motor, 52-first rotating shaft, 53-first gear, 54-second gear, 6-locking device, 61-base, 62-rotating buckle. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0035] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, device, product or equipment that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0036] In order to solve the problems of manual laying of adhesive film, the Chinese patent with application number 2023218707153 proposes the use of adsorption-type adhesive gluing equipment, which uses a flat adsorption component to adsorb the tape in the adhesive absorption area to the gluing station to realize the automatic attachment of the adhesive film. However, this method is suitable for products with smaller sizes. For products with larger sizes, it is necessary to set the flat plate at the bottom as disclosed in the Chinese patent with application number 2023114167042, adsorb the adhesive film with a vacuum adsorption plate and transfer it to the top of the flat plate, and then gradually break the vacuum from one end. The adhesive film falls on the surface of the flat plate under the action of gravity to achieve the laying of the adhesive film on the surface of the flat plate. This method has the problem of low efficiency, and because the weight of the adhesive film is light and the speed of breaking the vacuum of each hole is difficult to ensure to be completely consistent, the time points at which the adhesive film falls on the plane surface at various positions will be inconsistent, so there may still be problems such as bubbles and wrinkles. The deficiencies of the prior art have not been addressed. The utility model proposes a new adhesive-backed aluminum film paving device, which is not only suitable for paving adhesive-backed aluminum films on large-sized carbon fiber flat plates, but also has a fast paving speed and does not generate problems such as bubbles and wrinkles.

[0037] In one embodiment of the present invention, a device for laying adhesive-backed aluminum film is provided. Figures 1 to 3 The adhesive-backed aluminum film paving device comprises an upper cover 1, a lower cover 2 and a first vacuum device 31, the first surface 11 of the upper cover 1 is configured to load a carbon fiber board 4, and the side of the carbon fiber board 4 to be paved with the adhesive-backed aluminum film faces away from the first surface 11;

[0038] The lower cover 2 is a shell with a cavity inside, and a window 21 is provided on the upper surface thereof. A flexible mesh plate 22 is provided on the window 21. The flexible mesh plate 22 is configured to place an adhesive-backed aluminum film. Obviously, the adhesive-backed aluminum film is disposed away from the flexible mesh plate 22, that is, upwardly.

[0039] The air inlet end of the first vacuum pumping device 31 is connected to the cavity of the lower cover 2, and is configured to vacuum the cavity;

[0040] The upper cover 1 is configured to have a first state and a second state relative to the lower cover 2. When the upper cover 1 is configured to the first state, the upper cover 1 is separated from the lower cover 2; when the upper cover 1 is configured to the second state, the upper cover 1 is buckled on the lower cover 2, the first surface 11 is arranged opposite to the upper surface of the lower cover 2, and a gap is arranged between the first surface 11 and the upper surface of the lower cover 2, and the gap is 0.1mm to 0.5mm larger than the sum of the thicknesses of the carbon fiber plate 4 and the adhesive-backed aluminum film, and more preferably, the gap is 0.2mm or 0.3mm larger than the sum of the thicknesses of the carbon fiber plate 4 and the adhesive-backed aluminum film;

[0041] A pressing shaft 23 is arranged below the flexible mesh plate 22, and the distance from the axis line of the pressing shaft 23 to the first surface 11 is not greater than the sum of the gap, the thickness of the flexible mesh plate 22 and the radius of the pressing shaft 23. The pressing shaft 23 is driven by a driving mechanism 24 to move from one end of the flexible mesh plate 22 to the other end of the flexible mesh plate 22, so that the adhesive-backed aluminum film is adhered to the carbon fiber plate 4 under the movement or rolling of the pressing shaft 23.

[0042] The driving mechanism 24 has a variety of implementation methods. In a specific embodiment of the present utility model, the driving mechanism 24 includes a motor and a slide rail mechanism driven by the motor. The pressing shaft 23 is arranged on a slider of the slide rail mechanism. Under the drive of the motor, the slider drives the pressing shaft 23 to move from one end of the flexible web 22 to the other end of the flexible web 22. More preferably, the driving mechanism 24 also includes another motor for driving the pressing shaft 23 to rotate. Under the drive of the two motors, the pressing shaft 23 rolls from one end of the flexible web 22 to the other end of the flexible web 22. Of course, the driving mechanism 24 can also use a synchronous belt and a synchronous pulley driven by a motor. The synchronous pulley is coaxially fixedly connected with the pressing shaft 23. Under the drive of the motor, the synchronous belt drives the synchronous pulley, that is, the pressing shaft 23 rolls from one end of the flexible web 22 to the other end of the flexible web 22. The utility model does not limit the protection scope of this application by the specific structure of the driving mechanism 24.

[0043] The flexible mesh plate 22 may be made of mesh, and its shape preferably matches the shape of the carbon fiber plate to be paved with the adhesive-backed aluminum film, and its area is not less than the area of ​​the adhesive-backed aluminum film. The outer periphery of the flexible mesh plate 22 is provided with an annular frame, and the material of the annular frame may be selected from aluminum plate, PET plate, PC plate, etc., and the annular frame is fixed to the upper surface of the lower cover 2 by a screw assembly.

[0044] The utility model arranges a flexible mesh plate on the lower cover, and when the upper cover is buckled on the lower cover, a gap is arranged between the carbon fiber plate and the adhesive-backed aluminum film, and a pressing shaft rolls the flexible mesh plate and the adhesive-backed aluminum film adsorbed on the surface of the flexible mesh plate from one end, so that the adhesive-backed aluminum film is evenly attached to the carbon fiber plate, does not generate bubbles and wrinkles, and is not easy to drop particle impurities on the adhesive-backed aluminum film or the carbon fiber plate. The paving quality is good and the applicable size is not limited. It can be applied to the paving of the adhesive-backed aluminum film of a carbon fiber plate of 400mm×400mm or even larger.

[0045] In this embodiment, the lower cover 2 is preferably arranged horizontally. When the upper cover 1 is configured in the second state, the upper cover 1 is correspondingly arranged horizontally, and its first surface 11 is arranged downward. When the upper cover 1 is configured in the first state, it can be arranged horizontally or at a certain angle to the horizontal plane. There are also two ways to set the upper cover 1 horizontally when it is configured in the first state. One setting is that its first surface 11 faces upward, and the other setting is that its first surface 11 faces downward, which is specifically related to the device that controls the upper cover 1 to switch from the first state to the second state or from the second state to the first state. The following is an example description through two embodiments.

[0046] In one embodiment of the utility model, the adhesive-backed aluminum film laying device further comprises a flipping mechanism and a locking device 6. The flipping mechanism is configured to flip the upper cover 1 so that the upper cover 1 switches from the first state to the second state or from the second state to the first state. The locking device 6 is configured to fix the upper cover 1 on the lower cover 2. Figure 2 and Figure 3 The locking device 6 is arranged on the lower cover 2, and includes a base 61 and a rotating buckle 62. The base 61 is fixedly arranged on the lower cover 2, and the rotating buckle 62 is configured to rotate relative to the base 61 and be pressed on the upper cover 1. Alternatively, the upper cover 1 is provided with a handle 12, and the rotating buckle 62 is configured to rotate relative to the base 61 and be pressed on the handle 12. The number of the locking devices 6 can be one or more, preferably two.

[0047] In this embodiment, the upper cover 1 and the lower cover 2 are both arranged horizontally. When the upper cover 1 is configured in the first state, its first surface 11 is configured upward, and when the upper cover 1 is configured in the second state, its first surface 11 is configured downward.

[0048] See also Figure 1 and Figure 2The flipping mechanism includes a motor 51, a first rotating shaft 52, a first gear 53 and a second gear 54. Figure 2 Not shown. The motor 51 is configured to drive the second gear 54 to rotate; the second gear 54 is meshed and connected with the first gear 53, thereby driving the first gear 53 to rotate, and the first gear 53 is coaxially arranged with the first rotating shaft 52 and fixedly connected. The upper cover 1 is fixedly connected with the first rotating shaft 52, and the upper cover 1 is also configured to be fixedly connected with the first gear 53, and the connection point between the upper cover 1 and the first gear 53 is not on the axis of the first gear 53. It can be seen that when the motor 51 drives the second gear 54 to rotate, the second gear 54 drives the first gear 53 meshed with it to rotate, and the first gear 53 drives the upper cover 1 to flip from a horizontal position to a certain angle such as Figure 2 and Figure 3 As shown, it is flipped 180° to a position where it is engaged with the lower cover 2.

[0049] Preferably, the distance between the connection point between the upper cover 1 and the first gear 53 and the axis of the first gear 53 is not less than 1 / 3 of the pitch circle radius of the first gear 53. There may be multiple connection points between the upper cover 1 and the first gear 53. Specifically, Figure 2 and Figure 3 As shown, the upper cover 1 is fixedly connected to the first gear 53 by two screw assemblies.

[0050] In this embodiment, the upper cover 1 is provided with a plurality of through holes 111 penetrating the first surface 11. The adhesive-backed aluminum film laying device further includes a second vacuum device 32, the air inlet end of the second vacuum device 32 is configured to communicate with the through hole 111, and the second vacuum device 32 is configured to vacuum the through hole 111. The through hole 111 is vacuumed by the second vacuum device 32, so that the carbon fiber flat plate provided on the first surface 11 can be firmly adsorbed on the upper cover 1.

[0051] In another embodiment of the utility model, unlike the above-mentioned embodiment, in which the upper cover 1 is controlled to switch from the first state to the second state or from the second state to the first state by the flip mechanism, in this embodiment, a transfer mechanism is used to transfer the upper cover 1 so that the upper cover 1 switches from the first state to the second state or from the second state to the first state. In this embodiment, the upper cover 1 and the lower cover 2 are both arranged horizontally, and when the upper cover 1 is configured in the first state and the second state, its first surface 11 is configured to face downward. It should be noted that this embodiment does not limit the specific structure of the transfer mechanism. For example, the transfer mechanism can be a manipulator or a push mechanism driven by a motor to reciprocate. That is, the upper cover 1 can be fixed on a manipulator and the upper cover 1 can be transferred by the manipulator; the upper cover 1 can also be pushed from the first state to the second state by a push mechanism driven by a motor, and then switched back to the first state from the second state.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0053] The above is only a specific implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A self-adhesive aluminum film paving device, characterized in that: It comprises an upper cover (1), a lower cover (2) and a first vacuum pumping device (31), wherein the first surface (11) of the upper cover (1) is configured to load a carbon fiber plate (4); The lower cover (2) is a shell with a cavity inside, and a window (21) is arranged on the upper surface thereof. A flexible mesh plate (22) is arranged on the window (21), and the flexible mesh plate (22) is configured to place an adhesive-backed aluminum film; The air inlet end of the first vacuum pumping device (31) is connected to the cavity of the lower cover (2) and is configured to vacuum the cavity; The upper cover (1) is configured to have a first state and a second state relative to the lower cover (2); when the upper cover (1) is configured to be in the first state, the upper cover (1) is separated from the lower cover (2); when the upper cover (1) is configured to be in the second state, the upper cover (1) is buckled onto the lower cover (2), the first surface (11) is arranged opposite to the upper surface of the lower cover (2), and a gap is arranged between the first surface (11) and the upper surface of the lower cover (2); A pressing shaft (23) is arranged below the flexible mesh plate (22), and the pressing shaft (23) is driven by a driving mechanism (24) to move from one end of the flexible mesh plate (22) to the other end of the flexible mesh plate (22).

2. The adhesive-backed aluminum film paving device according to claim 1, characterized in that: The gap is 0.1 mm to 0.5 mm greater than the sum of the thicknesses of the carbon fiber plate (4) and the adhesive-backed aluminum film; and / or, The pressing shaft (23) is driven by a driving mechanism (24) to roll from one end of the flexible web plate (22) to the other end of the flexible web plate (22).

3. The adhesive-backed aluminum film paving device according to claim 1, characterized in that: The upper cover (1) is provided with a plurality of through holes (111) penetrating the first surface (11); The adhesive-backed aluminum film paving device further comprises a second vacuum pumping device (32), an air inlet end of the second vacuum pumping device (32) being configured to communicate with the through hole (111), and the second vacuum pumping device (32) being configured to vacuum the through hole (111).

4. The adhesive-backed aluminum film paving device according to claim 1, characterized in that: The adhesive-backed aluminum film paving device further comprises a flipping mechanism, wherein the flipping mechanism is configured to flip the upper cover (1) so as to switch the upper cover (1) from the first state to the second state or from the second state to the first state.

5. The adhesive-backed aluminum film paving device according to claim 4, characterized in that: The upper cover (1) and the lower cover (2) are both arranged horizontally; when the upper cover (1) is configured in the first state, its first surface (11) is configured upwards; and when the upper cover (1) is configured in the second state, its first surface (11) is configured downwards.

6. The adhesive-backed aluminum film paving device according to claim 5, characterized in that: The flipping mechanism comprises a motor (51), a first rotating shaft (52), a first gear (53) and a second gear (54); wherein the motor (51) is configured to drive the second gear (54) to rotate; the second gear (54) is meshedly connected with the first gear (53), thereby driving the first gear (53) to rotate; the first gear (53) is coaxially arranged with the first rotating shaft (52) and fixedly connected; The upper cover (1) is fixedly connected to the first rotating shaft (52), and the upper cover (1) is also configured to be fixedly connected to the first gear (53), and the connection point between the upper cover (1) and the first gear (53) is not on the axis of the first gear (53).

7. The adhesive-backed aluminum film paving device according to claim 6, characterized in that: The distance from the connection point between the upper cover (1) and the first gear (53) to the axis of the first gear (53) is not less than 1 / 3 of the pitch circle radius of the first gear (53).

8. The adhesive-backed aluminum film paving device according to claim 1, characterized in that: The adhesive-backed aluminum film paving device further comprises a transfer mechanism, which is configured to perform a transfer operation on the upper cover (1) so as to switch the upper cover (1) from the first state to the second state or from the second state to the first state.

9. The adhesive-backed aluminum film paving device according to claim 8, characterized in that: The upper cover (1) and the lower cover (2) are both arranged horizontally, and when the upper cover (1) is configured in the first state and the second state, the first surface (11) thereof is configured to face downward.

10. The adhesive-backed aluminum film paving device according to claim 1, characterized in that: The adhesive-backed aluminum film paving device further comprises a locking device (6), wherein the locking device (6) is configured to fix the upper cover (1) on the lower cover (2).

11. The adhesive-backed aluminum film paving device according to claim 10, characterized in that: The locking device (6) is arranged on the lower cover (2), and comprises a base (61) and a rotating buckle (62); the base (61) is fixedly arranged on the lower cover (2), and the rotating buckle (62) is configured to rotate relative to the base (61) and be pressed on the upper cover (1).