A diaphragm surface treatment device

Abstract

The application relates to the field of diaphragm surface treatment, in particular to a diaphragm surface treatment device. The device comprises a rack, a transfer film conveying device for conveying and transferring a film, a display film conveying device for conveying a display film and a coating device. The coating device comprises a glue spraying module, an extrusion module and an ultraviolet curing lamp. The extrusion module comprises a stainless steel roller and an extrusion roller which are rotationally connected to the rack. The ultraviolet curing lamp is provided with a water cooling system. The glue spraying module sprays glue between the transfer film and the display film. The two are fed at the same speed to uniformly distribute the glue in the gap. The ultraviolet curing lamp cures the glue. The device further comprises specific conveying shafts, platforms, roller shafts and adjusting devices. The device can uniformly coat and cure the glue on the surface of the display film, realize diaphragm surface treatment, and the display film has a frosted surface after coating. The device can avoid glue leakage and facilitate recycling of the film.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm surface treatment technology, and in particular to a diaphragm surface treatment device. Background Technology

[0002] In the LED display film industry, with continuous technological advancements, the requirements for film surface treatment are also increasing. Good film surface treatment can improve the display effect and lifespan of display films, playing a crucial role in many fields such as electronic displays and driving the development of related industries. At the same time, display films have wide applications in modern society's information dissemination and entertainment, and their quality improvement has a positive impact on the overall information interaction experience of society.

[0003] Prior to this technical solution, UV curing systems were traditionally used for membrane surface treatment. These systems relied primarily on manual experience to roughly adjust the adhesive flow rate and dispensing volume. Cooling was mainly achieved through exhaust ventilation. During membrane surface treatment, adhesive was directly applied to the membrane, and then cured using a UV curing system.

[0004] However, traditional UV curing systems have significant drawbacks. Their low power output makes it difficult to precisely control the adhesive flow rate and dispensing volume, resulting in an uneven surface and inconsistent thickness on the film. Furthermore, relying solely on exhaust cooling is insufficient to meet actual cooling requirements, further impacting the quality of the film surface treatment. Utility Model Content

[0005] This invention solves the problem of uneven surface on the film in traditional UV curing systems and proposes a film surface treatment device.

[0006] To achieve the above objectives, the following technical solution is proposed: A film surface treatment apparatus includes a frame, on which are mounted a transfer film transport device for transporting a transfer film, a display film transport device for transporting a display film, and a coating device. The coating device includes a spraying module, an extrusion module, and an ultraviolet curing lamp. The extrusion module includes a stainless steel roller and an extrusion roller rotatably connected to the frame. The axes of the stainless steel roller and the extrusion roller are in the same plane and have a certain gap between their outer diameters. Under the combined action of the transfer film transport device and the display film transport device, the surface of the transfer film with a frosted coating comes into close contact with the surface of the display film to be coated, passing through the gap between the stainless steel roller and the extrusion roller. The ultraviolet curing lamp is positioned directly below the point where the adhesive adheres to the display film.

[0007] The ultraviolet curing lamp of this invention is equipped with a water-cooling system, which reduces the irradiation temperature of the ultraviolet curing lamp. The adhesive spraying module of this invention sprays adhesive between the frosted coating surface of the transfer film and the surface of the display film to be coated. As the transfer film and display film are fed at the same speed by the transfer film transport device and the display film transport device, the adhesive is carried into the gap between the stainless steel roller and the extrusion roller, ensuring uniform distribution of the adhesive. The ultraviolet curing lamp, positioned directly below the interface between the adhesive and the display film, cures the adhesive, fixing it to the surface of the display film to be coated, thus achieving surface treatment of the film. The main body of the transfer film is a transparent film, its function being to facilitate peeling off the adhesive after curing on this side during adhesive application. Furthermore, the frosted coating of the transfer film has an anti-stick effect, facilitating easy peeling after adhesive curing, and also giving the outer surface of the coated display film a frosted texture.

[0008] Preferably, the transfer film transport device includes a transfer film feeding shaft for storing the transfer film and a transfer film recovery shaft for recovering the transfer film, both rotatably connected to the frame. The display film transport device includes a display film feeding shaft for storing the display film to be surface treated and a display film recovery shaft for recovering the display film after surface treatment, both rotatably connected to the frame. The frame is provided with a horizontal transfer platform. The transfer film recovery shaft is connected to a transfer film recovery reduction motor, which rolls the transfer film from the transfer film feeding shaft tightly against the surface of the transfer platform onto the transfer film recovery shaft. The display film recovery shaft is connected to a display film recovery reduction motor, which rolls the display film from the display film feeding shaft onto the display film recovery shaft.

[0009] Preferably, the transfer platform has a relief groove in the middle, the extrusion module is set in the relief groove, and a separation roller is rotatably connected to the frame in the relief groove. The axis of the separation roller and the stainless steel roller are on the same plane and there is a certain gap between their outer diameters. The transfer film recovery shaft and the display film recovery shaft are staggered vertically. The transfer film is rolled up to the transfer film recovery shaft by the separation roller and close to the surface of the transfer platform. The display film after surface treatment is connected to the display film recovery shaft by the separation roller.

[0010] Preferably, the transfer platform is smoothly connected to an inclined feeding platform at one end near the transfer film feeding shaft, and the other end of the transfer platform near the transfer film recycling shaft is provided with a discharge arc surface. Several feeding shafts are rotatably connected to the inclined feeding platform.

[0011] Preferably, a first pressure plate fixed to the frame is provided above the inclined loading platform, and a first pressure plate fixed to the frame is provided above the side of the transfer platform near the inclined loading platform. Both the first pressure plate and the first pressure plate have an arc surface below them.

[0012] Preferably, the transfer platform is provided with a feeding roller that is rotatably connected to the frame at one end near the inclined feeding platform, and a discharge roller that is rotatably connected to the frame at one end near the discharge arc surface. Both the feeding roller and the discharge roller are used to adhere the transfer film to the surface of the transfer platform.

[0013] Preferably, a first dust removal roller and a second dust removal roller are rotatably connected to the frame, and a certain gap is provided between the first dust removal roller and the second dust removal roller. The display film on the display film feeding shaft first passes through the gap between the first dust removal roller and the second dust removal roller for double-sided dust removal before entering the gap between the extrusion roller and the stainless steel roller.

[0014] The display film of this invention starts from the display film feeding shaft under the drive of the display film recycling shaft, passes through the gap between the first dust removal roller and the second dust removal roller for double-sided dust removal, then passes through the gap between the stainless steel roller and the extrusion roller, and passes through the gap between the stainless steel roller and the separation roller while closely adhering to the stainless steel roller, and then curls onto the display film recycling shaft.

[0015] Preferably, both ends of the feeding roller and the discharging roller are connected by a vertically arranged shaft adjustment device, and both ends of the extrusion roller and the separation roller are connected by a horizontally arranged shaft adjustment device. The shaft adjustment device includes a shaft slider, a fixed threaded block, and a capped adjusting screw. The shaft slider is slidably connected to the frame vertically or horizontally. The fixed threaded block is fixed to the frame to limit the movement of the shaft slider. The capped adjusting screw is threadedly connected to the fixed threaded block. A nut is provided at the end of the capped adjusting screw away from the shaft slider. A spring fixing post is provided at the end of the capped adjusting screw near the shaft slider. A spring limiting post is provided on the side of the shaft slider near the capped adjusting screw. A spring connects the spring fixing post and the spring limiting post.

[0016] This invention adjusts the roller pressure of the feeding roller and the discharging roller by adjusting the vertically set shaft adjustment device, and adjusts the gap between the stainless steel roller and the extrusion roller and the gap between the stainless steel roller and the separation roller by adjusting the horizontally set shaft adjustment device.

[0017] Preferably, the adhesive spraying module includes an adhesive coating liquid storage tank, an adhesive dispensing controller, and an adhesive dispensing nozzle. The adhesive dispensing controller draws a metered amount of coating liquid stored in the adhesive coating liquid storage tank into the adhesive dispensing nozzle, which then sprays the coating liquid between the surface of the transfer film frosted coating and the surface of the display film to be coated.

[0018] The adhesive coating liquid storage tank is connected to a pressurizing device via a pressure valve. The pressurizing device maintains the air pressure inside the adhesive coating liquid storage tank at 3-5 atmospheres to facilitate adhesive flow. The dispensing nozzle is equipped with an adhesive dispensing regulator to adjust the maximum adhesive dispensing volume, allowing the dispensing controller to adjust the adhesive dispensing volume according to product size and coating speed.

[0019] Preferably, the frame has a pair of glue dispensing baffles fixed above the stainless steel roller and the extrusion roller, and the distance between the pair of glue dispensing baffles is set according to the width of the display film to be coated. The purpose of setting the glue dispensing baffles in this invention is to prevent glue leakage.

[0020] The beneficial effects of this utility model are: it solves the defects of traditional equipment, improves the quality of diaphragm surface treatment, makes the diaphragm surface more uniform, and has functions such as dust removal and anti-leakage, thereby improving the practicality and reliability of the equipment. Attached Figure Description

[0021] Figure 1 This is a simplified diagram of the overall equipment structure of this utility model.

[0022] Figure 2 This is a cross-sectional view of the overall equipment structure of this utility model.

[0023] Figure 3 This is an enlarged cross-sectional view of the coating device of this utility model.

[0024] Figure 4 This is a partial enlarged view of the shaft adjustment device of this utility model.

[0025] The components include: 1. Frame; 2. Transfer film feeding shaft; 3. Transfer film recovery shaft; 4. Display film feeding shaft; 5. Display film recovery shaft; 6. Transfer platform; 61. Inclined feeding platform; 62. Discharge arc surface; 63. Feeding rotating shaft; 64. Feeding pressure roller; 65. Discharge pressure roller; 66. First pressure film sheet; 67. Second pressure film sheet; 7. Glue nozzle; 8. Glue dispensing controller; 9. Glue coating liquid storage tank; 10. Ultraviolet curing lamp; 11. First dust removal roller; 12. Second dust removal roller; 13. Glue dispensing baffle; 14. Rotating shaft slider; 15. Fixed threaded block; 16. Capped adjusting screw; 17. Display film recovery geared motor; 18. Transfer film recovery geared motor; 19. Extrusion roller; 20. Stainless steel roller; 21. Separation roller; 22. Transfer film; 23. Display film. Detailed Implementation Example

[0026] This embodiment proposes a membrane surface treatment device, including a frame 1, as shown in the reference. Figure 1 and Figure 2The frame 1 is equipped with a transfer film transport device for transporting the transfer film 22, a display film transport device for transporting the display film 23, and a coating device. The coating device includes a glue spraying module, an extrusion module, and an ultraviolet curing lamp 10. The extrusion module includes a stainless steel roller 20 and an extrusion roller 19 rotatably connected to the frame 1. The axes of the stainless steel roller 20 and the extrusion roller 19 are on the same plane and there is a certain gap between their outer diameters. Under the combined action of the transfer film transport device and the display film transport device, the surface of the transfer film 22 with the frosted coating is close to the surface of the display film 23 to be coated and passes through the gap between the stainless steel roller 20 and the extrusion roller 19. The ultraviolet curing lamp 10 is located directly below the joint between the glue and the display film 23.

[0027] The ultraviolet curing lamp 10 of this invention is equipped with a water-cooling system, which can reduce the irradiation temperature of the ultraviolet curing lamp 10. The adhesive spraying module of this invention sprays adhesive between the frosted coating surface of the transfer film 22 and the surface of the display film 23 to be coated. As the transfer film 22 and the display film 23 are fed at the same speed by the transfer film transport device and the display film transport device, the adhesive is carried into the gap between the stainless steel roller 20 and the extrusion roller 19, resulting in uniform adhesive distribution. The ultraviolet curing lamp 10, located directly below the junction of the adhesive and the display film 23, cures the adhesive, fixing it to the surface of the display film 23 to be coated, thus achieving surface treatment of the film. The main body of the transfer film 22 is a transparent film, its function being to facilitate peeling off the adhesive after curing on this side during adhesive application. Furthermore, the frosted coating of the transfer film 22 has an anti-stick effect, facilitating easy peeling after adhesive curing, and also giving the outer surface of the coated display film 23 a frosted texture.

[0028] The frame 1 has a pair of glue dispensing baffles 13 fixed above the stainless steel roller 20 and the extrusion roller 19. The distance between the pair of glue dispensing baffles 13 is set according to the width of the display film 23 to be coated. The purpose of setting the glue dispensing baffles 13 in this invention is to prevent glue leakage. The glue dispensing baffles can be replaced by components with blocking functions, such as rubber plates.

[0029] The transfer film transport device includes a transfer film feeding shaft 2 for curling and storing transfer film 22 and a transfer film recovery shaft 3 for recovering transfer film 22, both rotatably connected to the frame 1. The display film transport device includes a display film feeding shaft 4 for curling and storing display film 23 to be surface treated and a display film recovery shaft 5 for recovering display film 23 after surface treatment, both rotatably connected to the frame 1. A horizontal transfer platform 6 is provided on the frame 1. The transfer film recovery shaft 3 is connected to a transfer film recovery reduction motor 18, which curls the transfer film 22 from the transfer film feeding shaft 2 onto the transfer film recovery shaft 3 while keeping it close to the surface of the transfer platform 6. The display film recovery shaft 5 is connected to a display film recovery reduction motor 17, which curls the display film 23 from the display film feeding shaft 4 onto the display film recovery shaft.

[0030] The transfer film transport device of this invention is located entirely below the display film transport device, so that the transfer film 22 and the display film 23 will not interfere with each other during operation. When the surface of the transfer film 22 with the frosted coating is close to the surface of the display film 23 to be coated, it passes through the gap between the stainless steel roller 20 and the extrusion roller 19. The adhesive is sprayed by the spraying module and the two kinds of adhesive are squeezed evenly. The side of the adhesive near the transfer film 22 will form the same pattern as the surface of the frosted coating of the transfer film 22. The side of the adhesive near the display film 23 will be squeezed and pressed tightly onto the surface of the display film 23 to be coated. After curing by the ultraviolet curing lamp 10, the adhesive will fall off the transfer film 22, and the display film 23 with the surface texture of the frosted coating of the transfer film 22 will be obtained.

[0031] The transfer film transport device, display film transport device, and coating device of this invention are all mounted on a frame. These three components work together to complete the film surface treatment, improving the quality of the film surface treatment and solving the problems of low power, inaccurate control, and insufficient cooling in traditional UV curing systems, which lead to uneven film surfaces and inconsistent thicknesses. Stainless steel rollers and extrusion rollers can be replaced with wear-resistant and smooth-surfaced roller components such as ceramic rollers to adapt to different working environments and requirements.

[0032] The transfer platform 6 has a clearance groove in the middle, and the extrusion module is set in the clearance groove. The clearance groove has a separation roller 21 rotatably connected to the frame 1. The axis of the separation roller 21 and the stainless steel roller 20 are on the same plane and there is a certain gap between their outer diameters. The transfer film recovery shaft 3 and the display film recovery shaft 5 are staggered vertically. The transfer film 22 is rolled up to the transfer film recovery shaft 3 by the separation roller 21, which is close to the surface of the transfer platform 6. The display film 23 after surface treatment is connected to the display film recovery shaft 5 by the separation roller 21.

[0033] The transfer platform 6 is smoothly connected to an inclined feeding platform 61 at one end near the transfer film feeding shaft 2, and the other end of the transfer platform 6 near the transfer film recovery shaft 3 is provided with a discharge arc surface 62 to facilitate the transfer film to be rolled onto the transfer film recovery shaft. Several feeding shafts 63 are rotatably connected to the inclined feeding platform 61.

[0034] Above the inclined loading platform 61, there is a first pressing sheet 66 fixed on the frame 1. Above the side of the transfer platform 6 near the inclined loading platform 61, there is a second pressing sheet 67 fixed on the frame 1. Both the first pressing sheet 66 and the second pressing sheet 67 have an arc surface below them.

[0035] The transfer platform 6 is provided with a feeding roller 64 rotatably connected to the frame 1 above one end near the inclined feeding table 61, and a discharge roller 65 rotatably connected to the frame 1 above one end of the transfer platform 6 near the discharge arc surface 62. Both the feeding roller 64 and the discharge roller 65 are used to press the transfer film 22 tightly onto the surface of the transfer platform 6.

[0036] The frame 1 is rotatably connected to a first dust removal roller 11 and a second dust removal roller 12. A certain gap is provided between the first dust removal roller 11 and the second dust removal roller 12. The display film 23 on the display film feeding shaft 4 first passes through the gap between the first dust removal roller 11 and the second dust removal roller 12 for double-sided dust removal and then enters the gap between the extrusion roller 19 and the stainless steel roller 20.

[0037] refer to Figure 4 Both ends of the feeding roller 64 and the discharging roller 65 are connected by a vertically arranged shaft adjustment device. Both ends of the extrusion roller 19 and the separation roller 21 are connected by a horizontally arranged shaft adjustment device. The shaft adjustment device includes a shaft slider 14, a fixed threaded block 15, and a capped adjusting screw 16. The shaft slider 14 is slidably connected to the frame 1 vertically or horizontally. The fixed threaded block 15 is fixed to the frame 1 to limit the movement of the shaft slider 14. The capped adjusting screw 16 is threadedly connected to the fixed threaded block 15. A nut is provided at the end of the capped adjusting screw 16 away from the shaft slider 14. A spring fixing post is provided at the end of the capped adjusting screw 16 near the shaft slider 14. A spring limiting post is provided on the side of the shaft slider 14 near the capped adjusting screw 16. A spring is connected between the spring fixing post and the spring limiting post.

[0038] This invention adjusts the roller pressure of the feeding roller 64 and the discharging roller 65 by adjusting a vertically arranged shaft adjustment device, and adjusts the gap between the stainless steel roller 20 and the extrusion roller 19, as well as the gap between the stainless steel roller 20 and the separating roller 21, by adjusting a horizontally arranged shaft adjustment device. It can be flexibly adjusted according to different working requirements. Alternatively, other adjustment methods such as hydraulic adjustment devices can be used instead of the shaft adjustment device.

[0039] The glue spraying module includes a glue coating liquid storage tank 9, a glue dispensing controller 8, and a glue dispensing nozzle 7. The glue dispensing controller 8 draws a metered amount of coating liquid stored in the glue coating liquid storage tank 9 into the glue dispensing nozzle 7, which sprays the coating liquid between the frosted coating surface of the transfer film 22 and the surface of the display film 23 to be coated.

[0040] The adhesive coating liquid storage tank 9 is connected to a pressurizing device via a pressure valve. The pressurizing device controls the air pressure inside the adhesive coating liquid storage tank 9 at 3-5 atmospheres to facilitate adhesive flow. The adhesive nozzle 7 is equipped with an adhesive dispensing regulator to adjust the maximum adhesive dispensing volume, allowing the dispensing controller 8 to adjust the adhesive dispensing volume according to product size and coating speed.

[0041] This diaphragm surface treatment equipment uses a transfer film transport device and a display film transport device to transport the transfer film and display film respectively. An adhesive spraying module sprays adhesive between the two, which is then extruded by an extrusion module to ensure even distribution. An ultraviolet curing lamp cures the adhesive, while a water-cooling system lowers its irradiation temperature. Throughout the process, all components work together to precisely control the adhesive flow rate and output, effectively overcoming the shortcomings of traditional equipment, improving the quality of diaphragm surface treatment, and making the diaphragm surface more uniform. It also features dust removal and leak-proof functions, enhancing the equipment's practicality and reliability.

[0042] The working process of this embodiment is as follows: refer to Figure 2 and Figure 3 The display film 23 of this utility model starts from the display film feeding shaft 4 under the drive of the display film recycling shaft 5, passes through the gap between the first dust removal roller 11 and the second dust removal roller 12 for double-sided dust removal, then passes through the gap between the stainless steel roller 20 and the extrusion roller 19, and passes through the gap between the stainless steel roller 20 and the separation roller 21 while closely adhering to the stainless steel roller 20, and then curls onto the display film recycling shaft 5. Driven by the transfer film recovery shaft 3, the transfer film 22 starts from the transfer film feeding shaft 2, passes through the gap between the arc surface of the first pressure film 66 and the inclined feeding platform 61, adheres tightly to the surface of the inclined feeding platform 61, and enters the gap between the arc surface of the second pressure film 67 and the transfer platform 6 under the rolling action of the feeding shaft 63. After being rolled by the feeding pressure roller 64 to obtain a certain tension, it passes through the gap between the stainless steel roller 20 and the extrusion roller 19. Then, it passes tightly against the coated display film 23 and exits from the gap between the stainless steel roller 20 and the separation roller 21. It enters the gap between the discharge pressure roller 65 and the transfer platform 6, adheres tightly to the discharge arc surface 62 after being rolled by the discharge pressure roller 65 to obtain a certain tension, and then curls onto the transfer film recovery shaft 3.

Claims

1. A diaphragm surface treatment apparatus, comprising a frame (1), characterized in that, The frame (1) is provided with a transfer film transport device for transporting transfer film (22), a display film transport device for transporting display film (23), and a coating device. The coating device includes a glue spraying module, an extrusion module, and an ultraviolet curing lamp (10). The extrusion module includes a stainless steel roller (20) and an extrusion roller (19) rotatably connected to the frame (1). The axes of the stainless steel roller (20) and the extrusion roller (19) are on the same plane and there is a certain gap between their outer diameters. Under the combined action of the transfer film transport device and the display film transport device, the surface of the transfer film (22) with a frosted coating is close to the surface of the display film (23) to be coated and passes through the gap between the stainless steel roller (20) and the extrusion roller (19). The surface of the transfer film (22) with a frosted coating is close to the surface of the display film (23) to be coated. The ultraviolet curing lamp (10) is located directly below the joint between the glue and the display film (23).

2. The diaphragm surface treatment apparatus according to claim 1, characterized in that, The transfer film transport device includes a transfer film loading shaft (2) for loading and storing transfer film (22) and a transfer film recovery shaft (3) for recovering transfer film (22) which are rotatably connected to the frame (1). The display film transport device includes a display film loading shaft (4) for loading and storing display film (23) to be surface treated and a display film recovery shaft (5) for recovering display film (23) after surface treatment which are rotatably connected to the frame (1). A horizontal transfer platform (6) is provided on the frame (1). The transfer film recovery shaft (3) is connected to a transfer film recovery reduction motor (18) to roll the transfer film (22) of the transfer film loading shaft (2) tightly against the surface of the transfer platform (6) onto the transfer film recovery shaft (3). The display film recovery shaft (5) is connected to a display film recovery reduction motor (17) to roll the display film (23) of the display film loading shaft (4) onto the display film recovery shaft.

3. The diaphragm surface treatment apparatus according to claim 2, characterized in that, The transfer platform (6) is provided with a relief groove in the middle, and the extrusion module is set in the relief groove. The relief groove is provided with a separation roller (21) rotatably connected to the frame (1). The axis of the separation roller (21) and the stainless steel roller (20) are on the same plane and there is a certain gap between their outer diameters. The transfer film recovery shaft (3) and the display film recovery shaft (5) are staggered vertically. The transfer film (22) is rolled up to the transfer film recovery shaft (3) by the separation roller (21) and the display film (23) after surface treatment is completed. The display film (23) is connected to the display film recovery shaft (5) by the separation roller (21).

4. A membrane surface treatment apparatus according to claim 2 or 3, characterized in that, The transfer platform (6) is smoothly connected to an inclined feeding platform (61) at one end near the transfer film feeding shaft (2), and the other end of the transfer platform (6) near the transfer film recovery shaft (3) is provided with a discharge arc surface (62). Several feeding shafts (63) are rotatably connected to the inclined feeding platform (61).

5. The diaphragm surface treatment apparatus according to claim 4, characterized in that, Above the inclined loading platform (61) is a first pressure plate (66) fixed on the frame (1). Above the side of the transfer platform (6) near the inclined loading platform (61) is a second pressure plate (67) fixed on the frame (1). The first pressure plate (66) and the second pressure plate (67) are both provided with arc surfaces below them.

6. The diaphragm surface treatment apparatus according to claim 3, characterized in that, The transfer platform (6) is provided with a feeding roller (64) rotatably connected to the frame (1) at one end near the inclined feeding table (61), and a discharge roller (65) rotatably connected to the frame (1) at one end near the discharge arc surface (62). Both the feeding roller (64) and the discharge roller (65) are used to press the transfer film (22) tightly onto the surface of the transfer platform (6).

7. The diaphragm surface treatment apparatus according to claim 2, characterized in that, The frame (1) is rotatably connected to a first dust removal roller (11) and a second dust removal roller (12). A certain gap is provided between the first dust removal roller (11) and the second dust removal roller (12). The display film (23) on the display film feeding shaft (4) first passes through the gap between the first dust removal roller (11) and the second dust removal roller (12) for double-sided dust removal before entering the gap between the extrusion roller (19) and the stainless steel roller (20).

8. The diaphragm surface treatment apparatus according to claim 6, characterized in that, Both ends of the feeding roller (64) and the discharging roller (65) are connected by a vertically arranged shaft adjustment device. Both ends of the extrusion roller (19) and the separation roller (21) are connected by a horizontally arranged shaft adjustment device. The shaft adjustment device includes a shaft slider (14), a fixed threaded block (15), and a capped adjusting screw (16). The shaft slider (14) is vertically or horizontally slidably connected to the frame (1). The fixed threaded block (15) is fixed to the frame (1) to limit the movement of the shaft slider (14). The capped adjusting screw (16) is threadedly connected to the fixed threaded block (15). The end of the capped adjusting screw (16) away from the shaft slider (14) is provided with a nut. The end of the capped adjusting screw (16) near the shaft slider (14) is provided with a spring fixing post. The side of the shaft slider (14) near the capped adjusting screw (16) is provided with a spring limiting post. A spring is connected between the spring fixing post and the spring limiting post.

9. The diaphragm surface treatment apparatus according to claim 1, characterized in that, The glue spraying module includes a glue coating liquid storage tank (9), a glue dispensing controller (8), and a glue dispensing nozzle (7). The glue dispensing controller (8) quantitatively draws the coating liquid stored in the glue coating liquid storage tank (9) into the glue dispensing nozzle (7), and sprays it through the glue dispensing nozzle (7) between the surface of the frosted coating of the transfer film (22) and the surface of the display film (23) to be coated.

10. The diaphragm surface treatment apparatus according to claim 1, characterized in that, The frame (1) has a pair of glue dispensing baffles (13) fixed above the stainless steel roller (20) and the extrusion roller (19), and the distance between the pair of glue dispensing baffles (13) is set according to the width of the display film (23) to be coated.

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