Laminating device and laminating method for cover plate glass and functional sheet

Abstract

The invention provides a laminating device for cover plate glass and a functional sheet, and the laminating device comprises a shell assembly which comprises a preheating shell, a laminating shell and a bubble removing shell which are sequentially arranged in a communicating manner; the conveying assembly is arranged in the shell assembly; the laminating assembly is arranged in the laminating shell; the heating assembly is arranged in the bubble removing shell; the preheating recovery cleaning assembly is communicated with the bubble removing shell and the preheating shell; and an air inlet of the dust collection assembly communicates with the preheating shell. According to the technical scheme, the problems that in the prior art, when the cover plate glass and the functional piece are attached, much energy is wasted, and cost is high are effectively solved.

Description

Technical Field

[0001] This application relates to the technical field of bonding cover glass and functional sheets, and more particularly to a bonding device and method for bonding cover glass and functional sheets. Background Technology

[0002] Some consumer touchscreens use a glass cover and glass sensor bonded together (i.e., Glass-Glass, GG structure). Regarding the bonding materials, the industry currently uses three main types of adhesives: solid OCA (Optically Clear Adhesive) adhesive, liquid OCR (Optically Clear Resin) adhesive, and solid SCA adhesive. Among these, OCA adhesive holds a significant market share in GG structure bonding due to its high light transmittance, stable bond strength, excellent weather resistance, and mature processing technology.

[0003] The conventional process for bonding GG structures using OCA optical adhesive includes: pre-attaching the OCA optical adhesive film between the glass cover and the glass sensor, followed by feeding it into a degassing device. A pressure of 0.5-0.8 MPa is applied within the sealed cavity, and the temperature is raised to 60-80°C. This high-temperature, high-pressure environment increases the fluidity of the adhesive layer, thereby expelling air bubbles at the interface and achieving reliable bonding. After degassing, the traditional process uses direct cooling, i.e., cutting off the heat source and introducing a cooling medium to rapidly lower the cavity temperature to room temperature before removing the finished product. For example, application number 201611096998.5 is titled "A Full Lamination Method for GG Touch Screens."

[0004] This process of directly cooling after high-temperature cooling has significant drawbacks: First, the heat energy consumed during the degassing process accounts for more than 65% of the total energy consumption of the entire process, resulting in a large waste of residual heat. Second, frequent heating and cooling cycles cause thermal fatigue in the equipment, shortening the service life of key components such as sealing rings and heating elements, and increasing equipment maintenance costs by an average of 15-20% annually. Furthermore, the cooling process requires additional cooling water or other media, increasing utility costs, extending the production cycle of individual products, and reducing production line efficiency. In the context of increasingly fierce competition and low-profit margins in the consumer electronics market, this high energy consumption and high cost have become a key technological bottleneck restricting companies from enhancing their competitiveness. Summary of the Invention

[0005] One of the technical problems this application aims to solve is that in the prior art, the bonding of cover glass and functional sheets results in significant energy waste and high costs.

[0006] To address the aforementioned technical problems, this application provides a bonding device for cover glass and functional sheets, comprising: a housing assembly, which includes a preheating housing, a bonding housing, and a defoaming housing arranged sequentially; a conveying assembly disposed within the housing assembly; a bonding assembly disposed within the bonding housing; a heating assembly disposed within the defoaming housing; a preheating recovery cleaning assembly connected to the defoaming housing and the preheating housing; and a dust extraction assembly, the air inlet of which is connected to the preheating housing.

[0007] In some embodiments, the preheating recovery cleaning assembly includes a connecting pipe structure and a swinging structure. The first end of the connecting pipe structure is connected to the defoaming shell, and the second end of the connecting pipe structure is connected to the swinging structure. The swinging structure is located inside the preheating shell and is provided with an air blowing port.

[0008] In some embodiments, the swing structure includes a hose segment, a connecting pipe segment, and an air blowing pipe segment. The upper end of the hose segment is connected to the second end of the connecting pipe structure, the lower end of the hose segment is connected to the connecting pipe segment, the air blowing pipe segment is connected to the connecting pipe segment, and the air blowing port is located in the air blowing pipe segment.

[0009] In some embodiments, the connecting pipe section is an inverted U-shaped pipe, and the air blowing pipe section consists of two inverted U-shaped pipes. The middle part of the connecting pipe section is connected to the flexible hose section, and the two ends of the connecting pipe section are respectively connected to the middle of the two air blowing pipe sections. Each air blowing pipe section has an air blowing port on its two vertical pipes.

[0010] In some embodiments, the preheating recovery cleaning assembly further includes a drive structure fixed to the inner wall of the preheating housing and connected to the swing structure.

[0011] In some embodiments, the drive structure includes a drive motor, an eccentric wheel, and a connecting rod. The drive motor is connected to the inner wall of the preheating housing, the output shaft of the drive motor is connected to the eccentric wheel, the eccentric wheel is connected to the connecting rod, and the connecting rod is connected to the swing structure.

[0012] In some embodiments, the connecting rod includes a horizontal bar and a vertical bar, and the drive structure also includes a bearing. The two ends of the horizontal bar are respectively connected to the vertical pipes of two air blowing pipe sections. The upper end of the vertical bar is rotatably connected to the middle of the horizontal bar. The lower end of the vertical bar is connected to the outer wall of the bearing. The eccentric wheel is interference-fitted with the inner ring of the bearing. The output shaft of the drive motor is connected to the eccentric wheel at a predetermined distance from the center of the eccentric wheel.

[0013] In some embodiments, the drive structure further includes a guide rod and a guide post. The upper part of the guide rod is connected to the outer wall of the outer ring of the bearing and is disposed on the opposite side of the vertical rod. The guide rod has a guide groove extending axially along the guide rod. The guide post is connected to the inner wall of the preheating housing and is at least partially located within the guide groove.

[0014] In some embodiments, the dust collection assembly includes a lower dust collection pipe, an upper dust collection pipe, a dust collection fan, and a dust collection box. Both the lower and upper dust collection pipes are disposed within the preheating housing. The lower dust collection pipe is located at the lower part of the conveying assembly, and the upper dust collection pipe is located at the upper part of the conveying assembly. The inlet of the dust collection fan is connected to both the lower and upper dust collection pipes, and the outlet of the dust collection fan is connected to the dust collection box.

[0015] According to another aspect of this application, a method for bonding a cover glass and a functional sheet is also provided. The bonding method employs the aforementioned bonding device and includes the following steps: S10 Place the cover glass and functional sheet into the preheated housing; S20 activates the heating and vacuuming components; After the S30 cover glass and functional sheet are preheated, they are conveyed into the bonding housing. The bonding assembly is coated with OCA optical adhesive to bond the cover glass and functional sheet together. After the S40 cover glass and functional sheet are bonded together, they enter the defoaming housing.

[0016] By applying the technical solution of this application, the heat inside the defoamer housing is diverted to the preheating housing through the preheating recovery and cleaning component to preheat the glass cover, functional sheet, and optical adhesive. This allows for heat reuse, saving costs, and the gradual temperature increase of the glass cover, functional sheet, and optical adhesive prevents rapid high-temperature damage to the glass cover and functional sheet. The technical solution of this application effectively solves the problems of significant energy waste and high costs associated with the bonding of cover glass and functional sheets in existing technologies. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A three-dimensional structural schematic diagram of the bonding device disclosed in an embodiment of this application is shown; Figure 2 It shows Figure 1 A schematic diagram of the preheating and recycling cleaning component of the bonding device; Figure 3 It shows Figure 2 A schematic diagram of the drive structure of the bonding device; Figure 4 It shows Figure 1 A partial structural diagram of the dust collection component of the bonding device; Figure 5 A flowchart illustrating the bonding method of this application is shown.

[0019] Explanation of reference numerals in the attached figures: 10. Housing assembly; 11. Preheating housing; 12. Fitting housing; 13. Defoaming housing; 14. Support cabinet; 20. Preheating and recovery cleaning assembly; 21. Connecting pipe structure; 211. Valve; 22. Swinging structure; 221. Hose section; 222. Connecting pipe section; 223. Air blowing pipe section; 224. Air blowing port; 23. Drive structure; 231. Drive motor; 232. Eccentric wheel; 233. Horizontal bar; 234. Vertical bar; 235. Guide rod; 236. Guide column; 237. Bearing; 30. Dust collection assembly; 31. Lower dust collection pipe; 32. Upper dust collection pipe; 33. Dust collection fan; 34. Dust collection box. Detailed Implementation

[0020] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application. This application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0021] These embodiments are provided to make the application thorough and complete, and to fully express the scope of the application to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​illustrated in these embodiments should be interpreted as merely exemplary and not as limiting.

[0022] It should be noted that, in the description of this application, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and 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 of this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] Furthermore, the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0024] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0025] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0026] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0027] like Figures 1 to 4 As shown in the embodiment of this application, a bonding device for a cover glass and a functional sheet is disclosed, comprising: a housing assembly 10, a conveying assembly, a bonding assembly, a heating assembly, a preheating and recovery cleaning assembly 20, and a dust collection assembly 30. The housing assembly 10 includes a preheating housing 11, a bonding housing 12, and a defoaming housing 13, which are sequentially connected. The conveying assembly is disposed within the housing assembly 10. The bonding assembly is disposed within the bonding housing 12. The heating assembly is disposed within the defoaming housing 13. The preheating and recovery cleaning assembly 20 connects the defoaming housing 13 and the preheating housing 11. The air inlet of the dust collection assembly 30 is connected to the preheating housing 11.

[0028] Applying the technical solution of this embodiment, the heat inside the defoamer housing 13 is diverted to the preheating housing 11 via the preheating recovery and cleaning component 20 to preheat the glass cover, functional sheet, and optical adhesive. This allows for heat reuse, saving costs, and the gradual temperature increase of the glass cover, functional sheet, and optical adhesive prevents rapid high-temperature damage to the glass cover and functional sheet. The technical solution of this application effectively solves the problems of significant energy waste and high costs associated with bonding cover glass and functional sheets in existing technologies.

[0029] It should be noted that the specific structures of the bonding device, such as the positioning components for the cover glass and functional patches, as well as the conveying components, bonding components, and heating components, are already quite mature in existing bonding devices and will not be elaborated on here.

[0030] like Figure 2 and Figure 3 As shown in the technical solution of this embodiment, the preheating and recovery cleaning component 20 includes a connecting pipe structure 21 and a swing structure 22. The first end of the connecting pipe structure 21 is connected to the defoaming shell 13, and the second end of the connecting pipe structure 21 is connected to the swing structure 22. The swing structure 22 is located inside the preheating shell 11 and is provided with an air blowing port 224. The connecting pipe structure 21 connects the receiving space of the defoaming shell 13 with the receiving space of the preheating shell 11. The arrangement of the swing structure 22 makes the preheating more uniform. In addition, the air blowing port 224 of the swing structure 22 can also blow up dust. The swing of the swing structure 22 makes the area of ​​dust blown up larger, which is more conducive to improving the cleanliness of the product. A valve 211 is provided on the connecting pipe structure 21, which can adjust the air volume or open and close it.

[0031] like Figure 2 and Figure 3 As shown, in this embodiment, the swing structure 22 includes a flexible hose section 221, a connecting pipe section 222, and an air blowing pipe section 223. The upper end of the flexible hose section 221 is connected to the second end of the connecting pipe structure 21, and the lower end of the flexible hose section 221 is connected to the connecting pipe section 222. The air blowing pipe section 223 is connected to the connecting pipe section 222, and the air blowing port 224 is located in the air blowing pipe section 223. The flexible hose section 221 increases the degree of freedom of the swing structure 22, making the structure of the swing structure 22 compact, eliminating the need for other structures to further increase the degree of freedom. The connecting pipe section 222 and the air blowing pipe section 223 are rigid pipes, which ensures the accuracy of purging and preheating. The positions of the above structures are relatively flexible.

[0032] like Figure 2 and Figure 3As shown, in this embodiment, the connecting pipe section 222 is an inverted U-shaped pipe, and the air blowing pipe section 223 consists of two inverted U-shaped pipes. The middle part of the connecting pipe section 222 is connected to the flexible hose section 221, and both ends of the connecting pipe section 222 are respectively connected to the middle of the two air blowing pipe sections 223. Each air blowing pipe section 223 has an air blowing port 224 on each of its two vertical pipes. The inverted U-shaped pipe structure of the connecting pipe section 222 can form two branches, each corresponding to one of the two air blowing pipe sections 223. The two air blowing pipe sections 223 correspond to four vertical pipes, resulting in a shorter oscillation period for the swing structure 22, which improves the efficiency of preheating and purging. It should be noted that the end of the air blowing pipe section 223 is sealed, and each of the four vertical pipes of the air blowing pipe section 223 is provided with an air outlet. The air outlets of the two vertical pipes in one air outlet section are arranged opposite each other, and the axis of the air outlet is inclined downwards at 30° to 60° with respect to the horizontal plane. For example, one vertical pipe is provided with four air blowing ports 224. The inclination angle of the four air blowing ports 224 gradually increases from top to bottom. The inclination angle of the first air blowing port is 30°, the second air blowing port is 40°, the third air blowing port is 50°, and the fourth air blowing port is 60°. The above-mentioned structure with the inclination angle gradually increasing from high to low allows the four air blowing ports to cooperate and cover the entire product from the middle part to the edge near the edge of the vertical pipe. The coverage area of ​​the air blowing port 224 of each vertical pipe exceeds the middle position of the product (width direction). The swing of the swing structure 22 causes the coverage area of ​​the air blowing port 224 to also exceed the middle position (length direction).

[0033] like Figure 2 and Figure 3 As shown, in the technical solution of this embodiment, the preheating and recycling cleaning assembly 20 further includes a driving structure 23, which is fixed on the inner wall of the preheating housing 11 and connected to the swing structure 22. The driving structure 23 enables the swing structure 22 to swing regularly under the drive of the driving structure 23, rather than swinging randomly under the action of blowing force, thus making the heating and cleaning of the product more regular.

[0034] like Figure 2 and Figure 3As shown, in this embodiment, the drive structure 23 includes a drive motor 231, an eccentric wheel 232, and a connecting rod. The drive motor 231 is connected to the inner wall of the preheating housing 11. The output shaft of the drive motor 231 is connected to the eccentric wheel 232, which is connected to the connecting rod. The connecting rod is connected to the swing structure 22. The rotation of the output shaft of the drive motor 231 drives the eccentric wheel 232 to rotate. The eccentric rotation of the eccentric wheel 232 causes the connecting rod to swing regularly, thereby causing the vertical tube to swing regularly. The above structure has smooth movement, a compact structure, and good operability. It should be noted that the drive motor 231 can be controlled by a control component, or it can be operated manually by closing or opening a switch.

[0035] like Figure 2 and Figure 3 As shown, in this embodiment, the connecting rod includes a horizontal rod 233 and a vertical rod 234. The drive structure 23 also includes a bearing. The two ends of the horizontal rod 233 are respectively connected to the vertical pipes of the two air blowing sections 223. The upper end of the vertical rod 234 is rotatably connected to the middle of the horizontal rod 233, and the lower end of the vertical rod 234 is connected to the outer wall of the bearing. The eccentric wheel 232 is interference-fitted with the inner ring of the bearing. The output shaft of the drive motor 231 is connected to the eccentric wheel 232 at a predetermined distance from its center. The bearing reduces friction and wear.

[0036] like Figure 2 and Figure 3 As shown, in this embodiment, the drive structure 23 further includes a guide rod 235 and a guide post 236. The upper part of the guide rod 235 is connected to the outer wall of the outer ring of the bearing and is located on the opposite side of the vertical rod 234. The guide rod 235 has a guide groove extending along the axial direction of the guide rod 235. The guide post 236 is connected to the inner wall of the preheating housing 11 and is at least partially located in the guide groove. The cooperative structure of the guide rod 235 and the guide post 236 allows the outer ring of the bearing to drive the vertical rod 234 to swing. The vertical rod 234 and the horizontal rod 233 are hinged, so the vertical tube swings, while the outer ring of the bearing can move up and down but cannot move left and right under the constraint of the guide rod 235.

[0037] like Figure 4As shown, in this embodiment, the dust collection assembly 30 includes a lower dust collection pipe 31, an upper dust collection pipe 32, a dust collection fan 33, and a dust collection box 34. Both the lower dust collection pipe 31 and the upper dust collection pipe 32 are located inside the preheating housing 11. The lower dust collection pipe 31 is located at the lower part of the conveying assembly, and the upper dust collection pipe 32 is located at the upper part of the conveying assembly. The inlet of the dust collection fan 33 is connected to both the lower dust collection pipe 31 and the upper dust collection pipe 32, and the outlet of the dust collection fan 33 is connected to the dust collection box 34. The arrangement of the lower dust collection pipe 31 and the upper dust collection pipe 32 ensures uniform airflow from the product, resulting in a more uniform negative pressure. Furthermore, the dust inside the preheating housing 11 is thoroughly adsorbed, resulting in a higher level of cleanliness. The dust brought in by the product is less and lighter, falling more slowly under gravity. At this time, the upper dust collection pipe 32 can adsorb the dust and place it on the outside of the preheating housing 11.

[0038] It should be noted that the lower side of the upper suction pipe 32 has multiple suction ports arranged axially. The upper suction pipe 32 is located in the middle of the U-shaped bend of the connecting pipe section 222 to avoid interference when the swinging structure 22 swings. The air blowing pipe section 223 is located on the upper part of the conveying assembly. Each of the four vertical pipes of the air blowing pipe section 223 is provided with an air outlet, and the air outlets of the two vertical pipes of one air outlet pipe section are arranged opposite each other.

[0039] like Figure 1 As shown, in this embodiment, the defoaming housing 13 has a door and an air inlet. The air inlet is equipped with an air filter, allowing preheating of the gas entering the defoaming housing 13 or the introduction of clean inert gas. The UV curing heating structure inside the defoaming housing 13 and the heating structure inside the bonding housing 12 are not described in detail. The housing assembly 10 also includes a support cabinet 14. The preheating housing 11, bonding housing 12, and defoaming housing 13 are all sequentially mounted on the support cabinet 14, and will not be described in detail here.

[0040] According to another aspect of this application, a method for bonding a cover glass and a functional sheet is also provided. The bonding method employs the aforementioned bonding device and includes the following steps: S10 Placing the cover glass and functional sheet into the preheating housing 11; S20 Turning on the heating assembly and the dust extraction assembly 30; S30 After the cover glass and functional sheet are preheated, they are conveyed into the bonding housing 12, where the bonding assembly is coated with OCA optical adhesive to bond the cover glass and functional sheet; S40 The bonded cover glass and functional sheet enter the defoaming housing 13. It should be noted that one cycle of the oscillating structure 22 corresponds to one rotation of the output shaft of the drive motor. Temperature sensors are installed in the preheating housing 11, the bonding housing 12, and the defoaming housing 13. The oscillating structure 22 oscillates at least once before the product enters the bonding housing 12. No dedicated heating structure is required in the preheating housing 11, thus saving costs and energy.

[0041] The embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0042] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any manner.

Claims

1. A cover glass and functional sheet bonding apparatus characterized by, The application relates to a preheating and cleaning device for a laminating machine. The device comprises a shell assembly (10), a conveying assembly, a laminating assembly, a heating assembly, a preheating and recycling cleaning assembly (20) and a dust suction assembly (30). The preheating and recycling cleaning assembly (20) comprises a communication pipe structure (21) and a swing structure (22). The swing structure (22) comprises a hose section (221), a connecting pipe section (222) and a blowing pipe section (223). The connecting pipe section (222) is a reverse U-shaped pipe, and the blowing pipe section (223) is two reverse U-shaped pipes. The preheating and recycling cleaning assembly (20) further comprises a driving structure (23) fixed to the inner wall of the preheating shell (11) and connected with the swing structure (22). The driving structure (23) comprises a driving motor (231), an eccentric wheel (232) and a connecting rod.

2. The cover glass and functional sheet attaching apparatus according to claim 1, wherein The driving motor (231) is connected with the inner wall of the preheating shell (11), the output shaft of the driving motor (231) is connected with the eccentric wheel (232), the eccentric wheel (232) is connected with the connecting rod, and the connecting rod is connected with the swing structure (22).

3. The cover glass and functional sheet attaching apparatus according to claim 2, characterized by ​ 4. The cover glass and functional sheet attaching apparatus according to claim 3, wherein ​ 5. The cover glass and functional sheet attaching apparatus according to claim 4, wherein ​ 6. The cover glass and functional sheet attaching apparatus according to claim 5, wherein ​ 7. The cover glass and functional sheet attaching apparatus according to claim 6, wherein The connecting rod comprises a horizontal rod (233) and a vertical rod (234), the driving structure (23) further comprises a bearing, two ends of the horizontal rod (233) are connected with vertical tubes of two of the air blowing pipe sections (223) respectively, an upper end of the vertical rod (234) is rotatably connected with a middle part of the horizontal rod (233), a lower end of the vertical rod (234) is connected with an outer wall of the bearing, the eccentric wheel (232) is in interference fit with an inner ring of the bearing, an output shaft of the driving motor (231) is connected with the eccentric wheel (232) at a position away from a center of the eccentric wheel (232) by a predetermined distance.

8. The cover glass and functional sheet attaching apparatus according to claim 7, wherein The driving structure (23) further comprises a guide rod (235) and a guide column (236), an upper part of the guide rod (235) is connected with an outer wall of an outer ring of the bearing and is arranged on an opposite side of the vertical rod (234), the guide rod (235) has a guide groove extending along an axial direction of the guide rod (235), and the guide column (236) is connected with an inner wall of the preheating shell (11) and is at least partially located in the guide groove.

9. The cover glass and functional sheet attaching apparatus according to any one of claims 1 to 8, characterized by The dust suction assembly (30) comprises a lower dust suction pipe (31), an upper dust suction pipe (32), a dust suction fan (33) and a dust suction box (34), the lower dust suction pipe (31) and the upper dust suction pipe (32) are arranged in the preheating shell (11), the lower dust suction pipe (31) is located at a lower part of the conveying assembly, the upper dust suction pipe (32) is located at an upper part of the conveying assembly, an inlet of the dust suction fan (33) is connected with the lower dust suction pipe (31) and the upper dust suction pipe (32) in communication, and an outlet of the dust suction fan (33) is connected with the dust suction box (34) in communication.

10. A method of bonding a cover glass and a functional sheet, characterized by, The lamination method adopts the lamination device according to any one of claims 1 to 9, and comprises the following steps: S10 placing a cover glass and a functional sheet into the preheating shell (11); S20 starting the heating assembly and the dust suction assembly (30); S30 after the cover glass and the functional sheet are preheated, conveying the cover glass and the functional sheet into the lamination shell (12), coating the cover glass and the functional sheet by using the lamination assembly, and laminating the cover glass and the functional sheet by using OCA optical glue; S40 the laminated cover glass and functional sheet enter the bubble removing shell (13).

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