Curved surface film laminating and pressing device

Abstract

The invention provides a curved surface film pasting pressing device, and relates to the field of curved surface film pasting, the curved surface film pasting pressing device comprises a material suction disc used for taking materials, a lifting assembly installed on the top of the material suction disc and air inlet and outlet pipes uniformly arranged on the side wall of the material suction disc, and the outer side of the material suction disc is provided with a pressing assembly; and the pressing assembly comprises storage boxes symmetrically arranged on the left side and the right side of the suction disc, rotating rollers extending outwards are arranged in inner cavities of the two sets of storage boxes, pull ropes are symmetrically wound on the outer surfaces of the two sets of rotating rollers, and pressing cloth is arranged between the two sets of storage boxes. According to the device, the pressing cloth is matched with the pressing shafts arranged on the portions, close to the edges, of the two sides of the pressing cloth, and under the continuous rotation of the pull ropes and the rotating rollers symmetrically arranged at the two ends of the pressing cloth, the pull ropes and the pressing cloth are sequentially wound by the two sets of rotating rollers; further, the thin film and the top of the curved glass are continuously rolled through a group of pressing shafts, so that bubbles at the horizontal part of the curved glass are completely discharged.

Description

Technical Field

[0001] The present invention relates to the field of curved surface film lamination, and in particular to a curved surface film lamination device. Background Art

[0002] Since curved screens have a certain curvature, the film-laminating technology for curved screens is more demanding during the manufacturing process. The existing curved film-laminating process mainly includes four processes: material collection, material feeding, film lamination, and pressing. The existing film-laminating technology is to transport the curved glass to a designated location, absorb the film through a mechanical suction cup, and then apply it to the outer surface of the curved glass by positioning, thereby completing the entire film-laminating operation. However, in this process, the film is only adsorbed and applied by a mechanical suction cup. Due to the uneven force on the film, this method will cause bubbles to appear during the laminating process, and during the entire laminating process, it is impossible to perform targeted pressing on the curved edge of the curved glass, which will cause the entire film to warp during the laminating process.

[0003] For example, the Chinese invention patent (application number: CN202210975277.0) discloses a "flexible curved surface film laminating device." Its specification discloses that 3C products, as frequently used daily, have become a key focus for major manufacturers in expanding product requirements for user comfort. The most intuitive visual and tactile experience for users lies in the design of their screens. Because curved screens offer superior three-dimensionality and aesthetics compared to flat screens, creating a "borderless" visual effect, human-computer interaction with curved screens has also gradually developed and gained popularity among users. Curved screens are used in the manufacture of 3C products such as curved mobile phones, smart watches, and smart bracelets. Manufacturers have begun developing and selling curved screen products to meet user needs. The curvature of curved screens places higher demands on the laminating technology used for curved glass in screen manufacturing. The laminating process involves tightly applying an optical film to the glass surface. Laminating must be performed in a vacuum environment to avoid defects such as bubbles. The curved surface bonding process mainly includes four steps: material removal, material feeding, film tearing, and film lamination. The current common bonding technology is to place the film and curved glass in the upper and lower molds respectively. After tearing off the protective film on the surface, the upper and lower molds are accurately placed, and appropriate heating and pressure are applied to achieve a tight bond between the film and the curved glass. However, during the entire curved surface bonding process, the mold is rigid during the lamination process, which affects the bonding accuracy and bonding quality between the curved glass and the film. In addition, it is easy to cause damage to the curved glass and cause bubbles to appear during the bonding process. Therefore, it is urgent to develop an efficient and high-precision curved surface film bonding device that can solve the problems of bonding quality and bonding accuracy while ensuring bonding accuracy. The above patent can prove the defects of the existing technology.

[0004] Therefore, we have made improvements to this problem and proposed a curved surface film pressing device. Summary of the Invention

[0005] The purpose of the present invention is to address the existing curved surface film laminating device, which causes uneven force on the film during operation, resulting in bubbles in the laminating process. In addition, during the entire laminating process, it is impossible to perform targeted pressing on the curved edge of the curved glass, which causes the entire film to warp during the laminating process.

[0006] In order to achieve the above-mentioned purpose of the invention, the present invention provides a curved surface film laminating device to improve the above-mentioned problem.

[0007] The specific application is as follows: The invention comprises a suction pan for taking materials, a lifting assembly installed on the top of the suction pan and air inlet and outlet pipes evenly arranged on the side walls of the suction pan, a pressing assembly is provided on the outside of the suction pan, and the pressing assembly comprises storage boxes symmetrically arranged on the left and right sides of the suction pan, the inner cavities of the two groups of storage boxes are provided with rotating rollers extending outward, the storage boxes are sealed and sleeved with the rotating rollers, the outer surfaces of the two groups of rotating rollers are symmetrically wrapped with pull ropes, a pressing cloth is provided between the two groups of storage boxes, and the pressing cloth is symmetrically installed with pressing shafts near the left and right edges, the two ends of the pressing cloth respectively pass through the two groups of storage boxes and extend to their inner cavities, one end of the pull rope is fixedly connected to the side wall of the pressing cloth, and the other end of the pull rope is fixedly connected to the outer surface of the rotating roller.

[0008] As the preferred technical solution of the present application, a group of side wall pipes of the inlet and outlet air pipes are connected to the main air pipe, the main air pipe is bent, and the main air pipe is a hard pipe. A three-way valve is installed on the top of the main air pipe, and an air intake hose is installed on the top of the three-way valve, and an air motor is provided at the other end of the air intake hose, and the air motor is located on one side of the top of the suction plate.

[0009] As a preferred technical solution of the present application, mounting brackets are symmetrically arranged above the suction plate, the bottoms of the two groups of mounting brackets are respectively connected to the tops of the two groups of storage boxes, and the side walls of one group of mounting brackets are fixedly connected to the pneumatic motor.

[0010] As a preferred technical solution of the present application, the side walls of the two groups of mounting frames are installed with telescopic elbows, the other ends of the two groups of telescopic elbows are sleeved with sleeves, and the bottom of the sleeves is fixedly connected to the top of the suction plate.

[0011] As a preferred technical solution of the present application, a connecting pipe is connected between the two groups of sleeves, and a connecting hose is connected to the outer side of the connecting pipe. The other end of the connecting hose is connected to the three-way valve. The connecting hose is lower than the telescopic hose and extends to one end of the sleeve inner cavity, and the sleeve is sealed and sleeved with the telescopic hose.

[0012] As a preferred technical solution of the present application, side panels are symmetrically arranged between the two groups of storage boxes, and rubber scrapers are fixedly installed on the bottom of the side panels. The height of the rubber scrapers is slightly higher than the thickness of the curved glass plus the film, and the bottom of the rubber scrapers is lower than the bottom of the storage box. The inner sides of the two groups of rubber scrapers are in contact with the outer sides of the pressed cloth, and pressure relief valves are evenly installed on the outer sides of the side panels.

[0013] As a preferred technical solution of the present application, movable grooves are symmetrically provided on the bottom of the inner sides of the two groups of storage boxes, blocks are extended from both ends of the side panels, and the blocks extend into the interior of the movable grooves, the storage boxes are socketed with the blocks through the movable grooves, and a return spring is provided inside the movable grooves, one end of the return spring is fixedly connected to the storage box, and the other end of the return spring is fixedly connected to the inner wall of the side panel.

[0014] As a preferred technical solution of the present application, a first synchronous wheel and a second synchronous wheel are respectively installed on the ends of the same side of the two groups of rotating rollers, and a first synchronous belt is provided on the outer sides of the first synchronous wheel and the second synchronous wheel.

[0015] As a preferred technical solution of the present application, a second synchronous belt is sleeved on the outer side of the second synchronous wheel, and the other end of the second synchronous belt is sleeved on the output end of the pneumatic motor.

[0016] As a preferred technical solution of the present application, the bottom of the suction pan is symmetrically provided with wire grooves and plate grooves, the wire grooves match the pull ropes, and the plate grooves match the side panels.

[0017] Compared with the prior art, the present invention has the following beneficial effects: In the scheme of this application: 1. To address the problem of uneven force during the lamination process in the prior art, which leads to bubbles after lamination, the present invention utilizes a lamination cloth in conjunction with lamination shafts located near the edges of both sides of the lamination cloth. Drawstrings and rotating rollers symmetrically located at both ends of the lamination cloth continuously rotate, allowing two sets of rotating rollers to sequentially wrap around the drawstrings and lamination cloth. Furthermore, a set of lamination shafts continuously rolls against the film and the top of the curved glass, completely discharging bubbles from the horizontal portion of the curved glass. 2. In order to solve the problem in the prior art that the curved part of the curved glass cannot be specifically bonded when the curved surface is bonded, the present application realizes that after the horizontal plane is bonded, the pressing cloth is covered on the surface of the curved glass by the setting of the pressing cloth, sleeve, telescopic bent tube, side plate and scraper. At this time, under the action of negative pressure, the telescopic bent tube drives the side plate and the scraper to press down, and then cooperates with the symmetrically arranged storage box to form a closed space on the outside of the pressing cloth. At this time, air is blown to the top of the pressing cloth through the suction plate, thereby forcing the pressing cloth to completely bond with the curved glass, and driving the shaft to bend, so that it also completely bonds with the curved glass and the glass. At this time, by wrapping the pressing cloth and pulling the pressing shaft, the curved surface of the curved glass can be pressed and the bubbles can be discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the overall structure of the curved surface film laminating device provided in this application Figure 2 This is a schematic structural diagram of the pressing part of the curved surface film pressing device provided in this application; Figure 3 A bottom view of the structure of the pressing part of the curved surface film pressing device provided in this application; Figure 4 This is a schematic diagram of the connection structure of the suction plate of the curved surface film laminating device provided in this application; Figure 5 This is a schematic diagram of the structure of the pressing assembly of the curved surface film pressing device provided in this application; Figure 6 A cross-sectional view of the internal structure of the storage box for the curved surface film laminating device provided in this application; Figure 7 The curved surface film pressing device provided in this application Figure 5 Schematic diagram of the enlarged structure at A in the middle; Figure 8 This is a schematic diagram of the connection structure between the drawstring and the pressing cloth of the curved surface film pressing device provided by this application; Figure 9 This is an enlarged view of the local structure of the bottom of the suction tray of the curved surface film pressing device provided in this application.

[0019] Indicated in the figure: 1. Lifting assembly; 2. Suction tray; 3. Inlet and outlet pipes; 4. Pressing assembly; 401. Storage box; 402. Rotating roller; 403. First synchronous pulley; 404. Second synchronous pulley; 405. First synchronous belt; 406. Second synchronous belt; 407. Pneumatic motor; 408. Air intake hose; 409. Three-way valve; 410. Main air pipe; 411. Connecting hose; 412. Connecting pipe; 413. Casing; 414. Telescopic elbow; 415. Mounting bracket; 416. Side panel; 417. Rubber scraper; 418. Movable groove; 419. Return spring; 420. Draw cord; 421. Pressing cloth; 422. Pressing shaft; 423. Pressure relief valve; 5. Wire trough; 6. Board trough. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0021] As described in the background technology, the existing curved surface film laminating device will cause uneven force on the film during operation, which will lead to the formation of bubbles during the laminating process. In addition, during the entire laminating process, it is impossible to perform targeted pressing on the curved edge of the curved glass, which causes the entire film to warp during the laminating process.

[0022] In order to solve this technical problem, the present invention provides a curved surface film laminating device, which is applied to a curved surface laminating device.

[0023] Specifically, please refer to Figures 1-9 The curved surface film pressing device specifically includes a suction pan 2 for taking materials, a lifting assembly 1 installed on the top of the suction pan 2, and air inlet and outlet pipes 3 evenly arranged on the side walls of the suction pan 2. A pressing assembly 4 is provided on the outside of the suction pan 2, and the pressing assembly 4 includes storage boxes 401 symmetrically arranged on the left and right sides of the suction pan 2. The inner cavities of the two groups of storage boxes 401 are provided with rotating rollers 402 extending outward. The storage boxes 401 and the rotating rollers 402 are sealed and sleeved. The outer surfaces of the two groups of rotating rollers 402 are symmetrically wrapped with pull ropes 420. A pressing cloth 421 is provided between the two groups of storage boxes 401. Pressing shafts 422 are symmetrically installed on the pressing cloth 421 near the left and right edges. Both ends of the pressing cloth 421 respectively pass through the two groups of storage boxes 401 and extend to their inner cavities. One end of the pull rope 420 is fixedly connected to the side wall of the pressing cloth 421, and the other end of the pull rope 420 is fixedly connected to the outer surface of the rotating roller 402.

[0024] The curved film laminating device provided by the present invention is realized by setting a pressing cloth and cooperating with the pressing shafts set on the parts near the edges on both sides of the pressing cloth, and the pull ropes and rotating rollers symmetrically set at both ends of the pressing cloth are continuously rotated, so that two groups of rotating rollers can sequentially wrap the pull ropes and the pressing cloth, and then continuously roll on the top of the film and the curved glass through a group of pressing shafts, thereby completely expelling the bubbles in the horizontal part of the curved glass.

[0025] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein may be combined with each other.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0028] Example 1, please refer to Figure 4 and Figure 5 A curved surface film laminating device, wherein the side wall of a group of air inlet and outlet pipes 3 is connected to a main air pipe 410, the main air pipe 410 is bent, and the main air pipe 410 is a hard pipe, a three-way valve 409 is installed on the top of the main air pipe 410, an air intake hose 408 is installed on the top of the three-way valve 409, and an air motor 407 is provided at the other end of the air intake hose 408, and the air motor 407 is located on one side of the top of the suction tray 2; Gas is continuously pumped out through the air inlet and outlet pipes 3, and in conjunction with the three-way valve 409 and the air inlet hose 408, it is easy to provide power to the pneumatic motor 407, thereby causing it to rotate.

[0029] Please refer to Figure 4 and Figure 5 A curved film laminating device, wherein mounting brackets 415 are symmetrically arranged above the suction plate 2, the bottoms of the two sets of mounting brackets 415 are respectively connected to the tops of the two sets of storage boxes 401, and the side walls of one set of mounting brackets 415 are fixedly connected to the pneumatic motor 407.

[0030] The side walls of the two sets of mounting frames 415 are both installed with telescopic elbows 414 , and the other ends of the two sets of telescopic elbows 414 are both sleeved with sleeves 413 , and the bottom of the sleeve 413 is fixedly connected to the top of the suction pan 2 .

[0031] A connecting pipe 412 is connected between the two sets of sleeves 413, and a connecting hose 411 is connected to the outer side of the connecting pipe 412. The other end of the connecting hose 411 is connected to the three-way valve 409. The connecting hose 411 is lower than the telescopic hose 414 and extends to one end of the inner cavity of the sleeve 413. The sleeve 413 and the telescopic hose 414 are sealed and sleeved. The gas inside the sleeve 413 is extracted through the air inlet and outlet pipes 3, the three-way valve 409, the connecting hose 411 and the connecting pipe 412, thereby forming a negative pressure inside the sleeve 413, so that the telescopic elbow 414 cooperates with the mounting bracket 415 to drive the two groups of storage boxes 401 to move downward, making it easier for the storage boxes 401 to contact the supporting platform of the curved glass.

[0032] Example 2 further optimizes the curved surface film laminating device provided in Example 1. Specifically, Figure 6 、 Figure 7 and Figure 8 As shown, side panels 416 are symmetrically arranged between the two groups of storage boxes 401, and rubber scrapers 417 are fixedly installed on the bottom of the side panels 416. The height of the rubber scrapers 417 is slightly higher than the thickness of the curved glass plus the film, and the bottom of the rubber scrapers 417 is lower than the bottom of the storage box 401. The inner sides of the two groups of rubber scrapers 417 are in contact with the outer sides of the pressed cloth 421, and pressure relief valves 423 are evenly installed on the outer sides of the side panels 416.

[0033] The bottoms of the two sets of storage boxes 401 are symmetrically provided with movable grooves 418. Blocks extend from both ends of the side panels 416 and extend into the movable grooves 418. The storage boxes 401 are connected to the blocks through the movable grooves 418. A return spring 419 is provided inside the movable grooves 418. One end of the return spring 419 is fixedly connected to the storage box 401, and the other end of the return spring 419 is fixedly connected to the inner wall of the side panel 416. When the two groups of storage boxes 401 descend and contact the supporting platform, the side panels 416 and the rubber scrapers 417 will be driven down. When the storage boxes 401 descend to the lowest point, the rubber scrapers 417 contact the supporting platform and are squeezed and deformed. At this time, the two groups of side panels 416 and the rubber scrapers 417 installed at the bottom cooperate with the two groups of storage boxes 401 to form a sealed space on the outside of the pressing cloth 421. At this time, gas is supplied to the bottom of the suction tray 2, which can force the pressing cloth 421 and the pressing shaft 422 to fit tightly against the outer surface of the curved glass under the influence of air pressure, thereby achieving targeted pressing and dispersing the pressing force well.

[0034] A first synchronous wheel 403 and a second synchronous wheel 404 are respectively installed on the ends of the same side of the two sets of rotating rollers 402 . A first synchronous belt 405 is provided on the outer sides of the first synchronous wheel 403 and the second synchronous wheel 404 .

[0035] The outer side of the second synchronous wheel 404 is sleeved with a second synchronous belt 406, and the other end of the second synchronous belt 406 is sleeved with the output end of the pneumatic motor 407; The pneumatic motor 407 is started, so that the two sets of rotating rollers 402 can be synchronously driven to rotate through the second synchronous belt 406, the second synchronous wheel 404, the first synchronous belt 405 and the first synchronous wheel 403, and then the pull rope 420 and the pressing cloth 421 are wound in sequence through the synchronously rotating rotating rollers 402, thereby pulling the pressing shaft 422 to move back and forth.

[0036] Example 3 further optimizes the curved surface film laminating device provided in Example 1 or 2. Specifically, Figure 9 As shown, the bottom of the suction pan 2 is symmetrically provided with a wire groove 5 and a plate groove 6 , the wire groove 5 matches the pull rope 420 , and the plate groove 6 matches the side plate 416 .

[0037] The use process of the curved surface film laminating device provided by the present invention is as follows: Initial state: A set of rotating rollers 402 winds the rope 420 connected to it and completely winds the pressing cloth 421. At this time, the rope 420 on the other side of the pressing cloth 421 passes through the wire groove 5 and is connected to the other set of rotating rollers 402. At the same time, the side plate 416 and the rubber scraper 417 are located inside the plate groove 6. First, the suction plate 2 is moved to the top of the film transmission belt through the sliding rail connected to the outside world by the lifting component 1. At this time, the suction plate 2 is driven down by the lifting component 1, and the suction plate 2 cooperates with the inlet and outlet pipes 3 and the industrial air pump connected to the inlet and outlet pipes 3 to form a negative pressure, and the film is adsorbed on the bottom of the suction plate 2. After the adsorption is completed, the suction plate 2 is reset. At this time, the curved glass to be film-coated and the glass carrier plate are transported to the bottom of the suction plate 2 by the transmission belt, and then wait for the film to be pressed and applied; When applying the film, first use the lifting component 1 to drive the suction plate 2 and the adsorbed film to descend until the film is about to contact the curved glass, then stop descending, and use the inlet and outlet pipes 3, the three-way valve 409 and the connecting hose 411 and the connecting pipe 412 to extract the gas inside the sleeve 413, thereby forming a negative pressure inside it, so that the telescopic elbow 414 cooperates with the mounting bracket 415 to drive the two sets of storage boxes 401 to move downward, so that the storage boxes 401 can contact the supporting platform of the curved glass, thereby forming a sealed space. At this time, since the suction plate 2 is still Continuously sucking air in will cause the gas in the sealed environment to decrease continuously, thereby reducing the internal air pressure. At this time, the side plate 416 will compress the return spring 419 under negative pressure and slide along the movable groove 418, thereby facilitating the positioning of the curved glass. Until the positioning is completed, the pressure relief valve 423 is activated to release the pressure, and the above steps are reversed to reset the storage box 401. Then, the suction plate 2 is moved down again to make the film contact with the curved glass, and air is blown through the suction plate 2 to cover the film on the top of the curved glass. Plane lamination: After the film is covered on the curved glass, the suction plate 2 is driven to rise by the lifting assembly 1, and the rising position is slightly smaller than the diameter of the lamination shaft 422. Then the above steps are repeated to lower the two sets of storage boxes 401 and form a sealed space with the side plates 416 and the rubber scraper 417. Then, gas is supplied to the pneumatic motor 407, so that the pneumatic motor 407 cooperates with the second synchronous belt 406, the second synchronous wheel 404, the first synchronous belt 405 and the first synchronous wheel 403 to synchronously drive the unwound set of rotating rollers 402 to rotate and wind. First, the pull rope is completely wound, and then the lamination cloth 421 is pulled, and the lamination shaft 422 is driven to move by the lamination cloth 421, so that the film is slowly pressed by the lamination shaft 422, so that the bubbles on the top horizontal surface are completely discharged, until the lamination cloth 421 completely covers the top of the curved glass. After the curved surface is pressed and the flat surface is pressed, gas is continuously supplied to the sealed space through the suction plate 2 to increase the internal air pressure, thereby bending the pressing cloth 421 and the pressing shaft 422, and completely fitting with the curved surface and top plane of the curved glass under high pressure. At this time, repeat the above steps and pull the pressing cloth 421 and the pressing shaft 422 to complete the entire pressing and filming work of the curved glass.

[0038] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0039] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present invention specification and drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A curved surface film laminating device, characterized in that: The invention comprises a suction pan (2) for taking materials, a lifting assembly (1) installed on the top of the suction pan (2), and air inlet and outlet pipes (3) evenly arranged on the side walls of the suction pan (2); a pressing assembly (4) is arranged on the outside of the suction pan (2); the pressing assembly (4) comprises storage boxes (401) symmetrically arranged on the left and right sides of the suction pan (2); the inner cavities of the two groups of storage boxes (401) are both provided with rotating rollers (402) extending outward; the outer surfaces of the two groups of rotating rollers (402) are symmetrically wound with pull ropes (420); a pressing cloth (421) is provided between the two groups of storage boxes (401); pressing shafts (422) are symmetrically installed on the pressing cloth (421) near the left and right edges; one end of the pull rope (420) is fixedly connected to the side wall of the pressing cloth (421).

2. The curved surface film laminating device according to claim 1, characterized in that: A set of side wall pipes of the air inlet and outlet pipes (3) are connected to a main air pipe (410), a three-way valve (409) is installed on the top of the main air pipe (410), an air intake hose (408) is installed on the top of the three-way valve (409), and a pneumatic motor (407) is provided at the other end of the air intake hose (408).

3. The curved surface film laminating device according to claim 2, characterized in that: Mounting frames (415) are symmetrically arranged above the suction tray (2), the bottoms of the two groups of mounting frames (415) are respectively connected to the tops of the two groups of storage boxes (401), and the side walls of one group of mounting frames (415) are fixedly connected to the pneumatic motor (407).

4. The curved surface film laminating device according to claim 3, characterized in that: The side walls of the two groups of mounting frames (415) are both installed with telescopic elbows (414), and the other ends of the two groups of telescopic elbows (414) are both sleeved with sleeves (413), and the bottom of the sleeve (413) is fixedly connected to the top of the suction plate (2).

5. The curved surface film laminating device according to claim 4, characterized in that: A connecting pipe (412) is connected between the two sets of sleeves (413), and a connecting hose (411) is connected to the outer side of the connecting pipe (412). The other end of the connecting hose (411) is connected to the three-way valve (409).

6. The curved surface film laminating device according to claim 5, characterized in that: Side panels (416) are symmetrically arranged between the two groups of storage boxes (401), and rubber scrapers (417) are fixedly installed on the bottoms of the side panels (416), and the inner sides of the two groups of rubber scrapers (417) are in contact with the outer sides of the pressed cloth (421), and pressure relief valves (423) are evenly installed on the outer sides of the side panels (416).

7. The curved surface film laminating device according to claim 6, characterized in that: The bottoms of the inner sides of the two groups of storage boxes (401) are symmetrically provided with movable grooves (418), and a return spring (419) is provided inside the movable groove (418). One end of the return spring (419) is fixedly connected to the storage box (401), and the other end of the return spring (419) is fixedly connected to the inner wall of the side plate (416).

8. The curved surface film laminating device according to claim 7, characterized in that: A first synchronous wheel (403) and a second synchronous wheel (404) are respectively installed at the ends of the same side of the two groups of rotating rollers (402), and a first synchronous belt (405) is provided on the outer sides of the first synchronous wheel (403) and the second synchronous wheel (404).

9. The curved surface film laminating device according to claim 8, characterized in that: A second synchronous belt (406) is sleeved on the outer side of the second synchronous wheel (404), and the other end of the second synchronous belt (406) is sleeved on the output end of the pneumatic motor (407).

10. The curved surface film laminating device according to claim 9, characterized in that: The bottom of the suction plate (2) is symmetrically provided with a wire groove (5) and a plate groove (6), the wire groove (5) matches the pull rope (420), and the plate groove (6) matches the side plate (416).

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