Flexible screen curved surface fitting device

Abstract

The invention discloses a flexible screen curved surface laminating device which comprises a working box, a pneumatic suction cup, an automatic film tearing mechanism, a curved surface screen adjusting mechanism, a laminating mechanism and a flattening mechanism are sequentially arranged in the working box, and the curved surface screen adjusting mechanism comprises a first roll shaft support, a first roll shaft, a second roll shaft support, a second roll shaft, a traction rope, a soft film and a first motor. Two first roll shaft supports are fixed to the inner wall of the top of the working box, first roll shafts are arranged on the first roll shaft supports, first motors are arranged on the first roll shaft supports, the output ends of the first motors are connected with the first roll shafts, and a second roll shaft support is arranged between the two first roll shaft supports. Two first roll shafts are arranged on the first roll shaft support, second roll shafts are arranged on the two sides of the second roll shaft support respectively, two traction ropes are movably connected between the two first roll shafts and the two second roll shafts, a soft film is fixedly arranged at the ends of the two traction ropes, two pneumatic suction cups are fixedly arranged on the soft film, and automatic adjustment, automatic film tearing and bubble removal of the radian of the curved screen can be achieved.

Description

Technical Field

[0001] This invention relates to the field of flexible screen bonding technology, and more specifically, to a flexible screen curved surface bonding device. Background Technology

[0002] Flexible screen curvature bonding is a core process in display module assembly. Its bonding accuracy directly determines the product's display effect, touch sensitivity, and lifespan. It is a key link to ensure the mass production quality of flexible screens. However, there are some problems to be solved in the existing flexible curved screen bonding devices.

[0003] First, in existing technologies, when bonding inwardly curved flexible screens, the curvature of the screen needs to be manually adjusted. It is impossible to adjust the curvature of the screen automatically according to the curvature of the cover plate, which easily leads to a waste of manpower and affects the efficiency of production and processing.

[0004] Secondly, most curved screens in the existing technology have a protective film applied to them when they leave the factory. When bonding the curved screen, the protective film needs to be removed first. Most bonding devices in the existing technology do not have the function of automatically removing the protective film. Before bonding, the protective film needs to be removed manually, which affects the efficiency of processing and production.

[0005] Finally, after the curved screen is bonded, problems such as air bubbles may occur due to poor bonding. Existing bonding devices lack a mechanism for secondary bonding of curved screens, which can easily cause air bubbles on the surface of the manufactured products and affect product quality. Summary of the Invention

[0006] (a) Technical problems to be solved In view of the problems existing in the prior art, the present invention provides a flexible screen curved surface bonding device to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution A flexible screen curved surface bonding device includes a work box. Inside the work box, arranged in the working sequence, are pneumatic suction cups, an automatic film-tearing mechanism, a curved screen adjustment mechanism, a bonding mechanism, and a flattening mechanism. The curved screen adjustment mechanism includes a first roller support, a first roller, a second roller support, a second roller, traction ropes, a soft film, and a first motor. Two first roller supports are fixed on the top inner wall of the work box. A first roller is mounted on each first roller support, and a first motor is mounted on each first roller support. The output end of the first motor is connected to the first roller. A second roller support is fixed between the two first roller supports. Second rollers are mounted on both sides of the second roller support. Two traction ropes are movably connected between the two first rollers and the two second rollers. A soft film is fixed at the end of each traction rope, and two pneumatic suction cups are fixed on the soft film.

[0008] The present invention is further configured such that the automatic film-tearing assembly includes a second motor, a first screw, a first screw groove, a first screw slider, a rotating rod, a connecting rod, a connecting plate, a gear, a second motor, a slide groove, a slide groove slider, and an adhesive strip. The top of the working box is provided with a first screw groove, and a first screw is disposed in the first screw groove. A second motor is fixedly disposed on the side of the working box, and the output end of the second motor is connected to the first screw. A first screw slider is spirally connected to the first screw, a connecting rod is connected to the first screw slider, and a connecting plate is connected to the connecting rod.

[0009] The invention is further configured such that the connecting plate is provided with two meshing gears, a third motor is fixedly provided on the back of the connecting plate, the output end of the third motor is connected to one of the gears, a rotating rod is fixedly connected to the other gear, an adhesive strip is fixedly provided on the rotating rod, a sliding groove is provided on the back of the working box, a sliding groove slider is fixedly provided on the rotating rod, and the sliding groove slider is movably disposed on the sliding groove.

[0010] The present invention is further configured such that the bonding mechanism includes a first sleeve, a first telescopic rod, a curved cover plate placement platform, a first cylinder, a fixing hole, a fixing plate, and a second cylinder. Two first sleeves are fixedly arranged on the bottom surface of the work box. A first telescopic rod is movably arranged inside the first sleeve. The output end of the first telescopic rod is connected to the curved cover plate placement platform. A first cylinder is fixedly arranged on the bottom surface of the work box. The output end of the first cylinder is connected to the curved cover plate placement platform.

[0011] The present invention is further configured such that a fixing hole is provided on the top of the curved cover plate placement platform, and a fixing plate and two second cylinders are respectively provided on both sides of the top surface of the curved cover plate placement platform, with the output end of the second cylinders connected to the fixing plate.

[0012] The present invention is further configured such that the flattening mechanism includes a second screw, a smooth rod groove, a smooth rod, a third motor, a second sleeve, a second telescopic rod, a second screw slider, a fourth motor, a flattening roller, and a reset cylinder. The front and rear sides of the bottom surface of the working box are respectively provided with a second screw and a smooth rod groove. A smooth rod is provided in the smooth rod groove. A third motor is fixedly provided on the side wall of the working box. The output end of the third motor is connected to the second screw. A second screw slider is movably provided on the second screw and the smooth rod, and a second sleeve is fixed on the second screw slider.

[0013] The present invention is further configured such that a second telescopic rod is movably disposed inside the second sleeve, a flattening roller is movably disposed between the two second telescopic rods, a fourth motor is fixedly disposed on one of the second telescopic rods, the output end of the fourth motor is connected to the same, and a reset cylinder is fixedly disposed inside the second sleeve.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention provides a flexible screen curved surface bonding device, which has the following beneficial effects: 1. The design of the curved screen adjustment mechanism solves the problem mentioned in the background technology of the inability to automatically adjust the curvature of the curved screen according to the curvature of the curved cover plate. When the curved screen comes into contact with the curved cover plate on the curved cover plate placement platform, the first motor is started to drive the traction rope to wind up. The traction rope will adjust the curvature of the soft film and the curved screen inward until it is consistent with the curvature of the curved cover plate, thus achieving the purpose of automatically adjusting the curvature of the curved screen, saving manpower and improving production efficiency.

[0015] 2. The automatic film-peeling mechanism solves the problem mentioned in the background art that most existing bonding devices do not have the function of automatically peeling off the protective film, requiring manual removal of the protective film before bonding. The third motor is started to drive the gear to rotate, the gear rotation drives the rotating rod to rotate, and the second motor is started at the same time, the second motor drives the first screw to rotate, the first screw slider moves on the first screw, and at the same time drives the rotating rod to move. The adhesive strip on the rotating rod will peel off the protective film and wrap it around the rotating rod, thus improving production efficiency.

[0016] 3. The design of the flattening component solves the problem mentioned in the background art that the existing bonding device lacks a mechanism for secondary bonding of curved screens, which easily causes air bubbles on the surface of the produced products. When the third motor is started and the reset cylinder is closed, the flattening roller will move downwards and closely adhere to the curved screen after the first bonding and move along the curved screen. The setting of the second telescopic rod and the second sleeve ensures that the flattening roller will always be in close contact with the curved screen. When the fourth motor is started, the flattening roller will rotate and flatten the air bubbles generated on the surface of the curved screen, thus improving the quality of the product. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a flexible curved screen bonding device according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of a flexible curved screen bonding device according to the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the automatic film-tearing mechanism in this invention; Figure 4 In this invention Figure 3 A partial structural diagram; Figure 5 This is a schematic diagram of the bonding mechanism in this invention; Figure 6 This is a schematic diagram of the flattening mechanism in the present invention; Figure 7 This is a schematic diagram of the planar structure of the flattening mechanism in this invention. In the diagram: 1. Working box; 2. Pneumatic suction cup; 3. First roller support; 4. First roller; 5. Second roller support; 6. Second roller; 7. Traction rope; 8. Soft membrane; 9. First motor; 10. Second motor; 11. First screw; 12. First screw groove; 13. First screw slider; 14. Rotating rod; 15. Connecting rod; 16. Connecting plate; 17. Gear; 18. Third motor; 19. Slide groove; 20. Slide groove 21. Slider; 22. Adhesive strip; 23. First sleeve; 24. First telescopic rod; 25. Curved cover plate placement platform; 26. First cylinder; 27. Fixing hole; 28. Fixing plate; 29. ​​Second cylinder; 30. Second screw; 31. Smooth rod groove; 32. Smooth rod; 33. Third motor; 34. Second sleeve; 35. Second telescopic rod; 36. Second screw slider; 37. Fourth motor; 38. Flattening roller; 39. Reset cylinder. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0020] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0021] Please see Figure 1-7 The working box 1 is equipped with pneumatic suction cups 2, an automatic film-tearing mechanism, a curved screen adjustment mechanism, a bonding mechanism, and a flattening mechanism arranged in the working order. The curved screen adjustment mechanism includes a first roller support 3, a first roller 4, a second roller support 5, a second roller 6, a traction rope 7, a soft film 8, and a first motor 9. Two first roller supports 3 are fixed on the top inner wall of the working box 1. A first roller 4 is mounted on the first roller support 3. A first motor 9 is mounted on the first roller support 3. The output end of the first motor 9 is connected to the first roller 4. A second roller support 5 is fixed between the two first roller supports 3. A second roller 6 is mounted on each side of the second roller support 5. Two traction ropes 7 are movably connected between the two first rollers 4 and the two second rollers 6. A soft film 8 is fixed at the end of the two traction ropes 7. Two pneumatic suction cups 2 are fixed on the soft film 8.

[0022] In this embodiment, the curved screen is fixed to the pneumatic suction cup 2, which will hold the curved screen. When the curved screen contacts the curved cover plate, the first motor 9 is started. The first motor 9 will drive the first roller 4 to rotate, and the first roller 4 will drive the traction rope 7 to tighten, so that the soft film 8 and the curved screen can adaptively adjust according to the curvature of the curved cover plate.

[0023] Please see Figure 1-4 The automatic film-tearing assembly includes a second motor 10, a first screw 11, a first screw groove 12, a first screw slider 13, a rotating rod 14, a connecting rod 15, a connecting plate 16, a gear 17, a third motor 18, a sliding groove 19, a sliding groove slider 20, and an adhesive strip 21. The top of the working box 1 has a first screw groove 12, and the first screw 11 is disposed in the first screw groove 12. The second motor 10 is fixedly disposed on the side of the working box 1. The output end of the second motor 10 is connected to the first screw 11. The first screw slider 13 is spirally connected to the first screw 11. The first screw slider 13 is connected to the connecting rod 15, and the connecting rod 15 is connected to the connecting plate 16.

[0024] The connecting plate 16 is provided with two meshing gears 17. A third motor 18 is fixedly provided on the back of the connecting plate 16. The output end of the third motor 18 is connected to one of the gears 17. A rotating rod 14 is fixedly connected to the other gear 17. An adhesive strip 21 is fixedly provided on the rotating rod 14. A sliding groove 19 is provided on the back of the working box 1. A sliding groove slider 20 is fixedly provided on the rotating rod 14. The sliding groove slider 20 is movably disposed on the sliding groove 19.

[0025] In this embodiment, when the film needs to be peeled off, the second motor 10 is started. The second motor 10 drives the first screw 11 to rotate and simultaneously drives the first screw slider 13 to slide on the first screw 11. The sliding of the first screw slider 13 drives the slide slider 20 to slide on the slide groove 19, thereby achieving the purpose of moving the rotating rod 14 left and right. At the same time, the third motor 18 is started. The third motor 18 drives the two gears 17 to rotate. The rotation of the two gears 17 drives the rotating rod 14 to rotate. The rotation of the rotating rod 14 causes the curved screen protective film in contact with the rotating rod 14 to be stuck to the adhesive strip 21 and rolled up onto the rotating rod 14 as the rotating rod 14 rotates.

[0026] Please see Figure 1 , Figure 2 and Figure 5The bonding mechanism includes a first sleeve 22, a first telescopic rod 23, a curved cover plate placement platform 24, a first cylinder 25, a fixing hole 26, a fixing plate 27, and a second cylinder 28. Two first sleeves 22 are fixedly installed on the bottom surface of the work box 1. The first telescopic rod 23 is movably installed inside the first sleeve 22. The output end of the first telescopic rod 23 is connected to the curved cover plate placement platform 24. The first cylinder 25 is fixedly installed on the bottom surface of the work box 1. The output end of the first cylinder 25 is connected to the curved cover plate placement platform 24.

[0027] The top of the curved cover plate placement platform 24 is provided with a fixing hole 26. The top surfaces of the curved cover plate placement platform 24 are respectively provided with a fixing plate 27 and two second cylinders 28. The output end of the second cylinder 28 is connected to the fixing plate 27.

[0028] In this embodiment, the curved cover plate 24 is placed on the curved cover plate placement platform 24. Since the curved surface of the curved cover plate faces upward, the center of gravity of the curved cover plate is in the center position. When the curved cover plate 24 is placed on the curved cover plate placement platform 24, the center of the curved cover plate will automatically coincide with the fixing hole 26. Then, the second cylinder 28 is started to push the fixing plate 27 to fix the curved cover plate. Then, the first cylinder 25 is started, and the first motor 25 will drive the curved cover plate placement platform 24 to move upward and contact the curved screen.

[0029] The flattening mechanism includes a second screw 29, a smooth rod groove 30, a smooth rod 31, a third motor 32, a second sleeve 33, a second telescopic rod 34, a second screw slider 35, a fourth motor 36, a flattening roller 37, and a reset cylinder 38. The second screw 29 and the smooth rod groove 30 are respectively provided on the front and rear sides of the bottom surface of the working box 1. The smooth rod 31 is provided in the smooth rod groove 30. The third motor 32 is fixedly provided on the side wall of the working box 1. The output end of the third motor 32 is connected to the second screw 29. The second screw slider 35 is movably provided on the second screw 29 and the smooth rod 31, and the second sleeve 33 is fixed on the second screw slider 35.

[0030] Please see Figure 1-7 The second sleeve 33 is movably provided with a second telescopic rod 34, and a flattening roller 37 is movably provided between the two second telescopic rods 34. A fourth motor 36 is fixedly provided on one of the second telescopic rods 34, and the output end of the fourth motor 36 is connected to the same device. A reset cylinder 38 is fixedly provided inside the second sleeve 33.

[0031] In this embodiment, when it is necessary to remove air bubbles from the curved screen after the first bonding, a second bonding is required. The third motor 32 is started, which drives the second screw 29 to rotate. The rotation of the second screw 29 drives the second screw slider 35 to slide. At this time, the reset cylinder 38 is closed, and the flattening roller 37 moves downward and closely adheres to the curved screen after the first bonding and moves along the curved screen. The setting of the second telescopic rod 34 and the second sleeve 33 ensures that the flattening roller 37 will continue to move along the trajectory of the curved screen and closely adhere to the curved screen. At the same time, the fourth motor 36 is started, and the flattening roller 37 rotates to flatten the air bubbles generated on the surface of the curved screen. After that, the reset cylinder 38 is started to reset the flattening roller 37 so that the flattening roller 37 can be on the curved screen in the next operation without being stuck.

[0032] In summary, the curved screen is fixed to the pneumatic suction cup 2, which will hold the curved screen in place. When the curved screen contacts the curved cover plate, the first motor 9 is started. The first motor 9 will drive the first roller 4 to rotate, and the first roller 4 will drive the traction rope 7 to tighten, so that the soft film 8 and the curved screen can adaptively adjust according to the curvature of the curved cover plate.

[0033] When the film needs to be peeled off, the second motor 10 is started. The second motor 10 will drive the first screw 11 to rotate and simultaneously drive the first screw slider 13 to slide on the first screw 11. The sliding of the first screw slider 13 will drive the slide slider 20 to slide on the slide groove 19, thereby achieving the purpose of moving the rotating rod 14 left and right. At the same time, the third motor 18 is started. The third motor 18 will drive the two gears 17 to rotate. The rotation of the two gears 17 will drive the rotating rod 14 to rotate. The rotation of the rotating rod 14 will cause the curved screen protective film in contact with the rotating rod 14 to be stuck to the adhesive strip 21 and rolled up onto the rotating rod 14 as the rotating rod 14 rotates.

[0034] The curved cover plate 24 is placed on the curved cover plate placement platform 24. Since the curved surface of the curved cover plate faces upward, the center of gravity of the curved cover plate is in the center position. When the curved cover plate 24 is placed on the curved cover plate placement platform 24, the center of the curved cover plate will automatically coincide with the fixing hole 26. Then, the second cylinder 28 is started, which pushes the fixing plate 27 to fix the curved cover plate. Then, the first cylinder 25 is started, and the first motor 25 will drive the curved cover plate placement platform 24 to move upward and contact the curved screen.

[0035] When it is necessary to remove air bubbles from the curved screen after the first bonding, a second bonding is required. The third motor 32 is started, which drives the second screw 29 to rotate. The rotation of the second screw 29 drives the second screw slider 35 to slide. At this time, the reset cylinder 38 is closed, and the flattening roller 37 moves downward and closely adheres to the curved screen after the first bonding and moves along the curved screen. The setting of the second telescopic rod 34 and the second sleeve 33 ensures that the flattening roller 37 will continue to move along the trajectory of the curved screen and closely adhere to the curved screen. At the same time, the fourth motor 36 is started, and the flattening roller 37 rotates to flatten the air bubbles generated on the surface of the curved screen. After that, the reset cylinder 38 is started to reset the flattening roller 37 so that the flattening roller 37 can be on the curved screen in the next operation without being stuck.

[0036] Of all the solutions mentioned above, those involving connections between two components can be selected based on actual conditions, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods. These will not be elaborated upon here. For any fixed connections mentioned above, welding is preferred. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention. The scope of the invention is defined by the appended claims and their equivalents. Item limited.

[0037] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise specified, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, their electrical connections and specific circuit structures will not be elaborated here.

Claims

1. A flexible screen curved surface pasting device comprising a working box (1), characterized in that: The work box (1) is sequentially provided with a pneumatic suction cup (2), an automatic film tearing mechanism, a curved screen adjusting mechanism, a pasting mechanism and a flattening mechanism according to the working order, the curved screen adjusting mechanism comprises a first roller shaft support (3), a first roller shaft (4), a second roller shaft support (5), a second roller shaft (6), a traction rope (7), a soft film (8) and a first motor (9), two first roller shaft supports (3) are fixed on the top inner wall of the work box (1), the first roller shaft supports (3) are provided with the first roller shafts (4), the first roller shaft supports (3) are provided with the first motor (9), the output end of the first motor (9) is connected with the first roller shaft (4), the second roller shaft support (5) is fixedly arranged between the two first roller shaft supports (3), the second roller shaft support (5) is provided with the second roller shafts (6) on the two sides, respectively, the two first roller shafts (4) and the two second roller shafts (6) are movably connected with the two traction ropes (7), the ends of the two traction ropes (7) are fixedly provided with the soft film (8), and the soft film (8) is fixedly provided with the two pneumatic suction cups (2).

2. The flexible screen curved surface pasting device according to claim 1, characterized in that: The automatic film tearing assembly comprises a second motor (10), a first screw rod (11), a first screw rod groove (12), a first screw rod sliding block (13), a rotating rod (14), a connecting rod (15), a connecting plate (16), a gear (17), a third motor (18), a sliding groove (19), a sliding groove sliding block (20) and a sticky strip (21), the top of the work box (1) is provided with the first screw rod groove (12), the first screw rod groove (12) is provided with the first screw rod (11), the side of the work box (1) is fixedly provided with the second motor (10), the output end of the second motor (10) is connected with the first screw rod (11), the first screw rod (11) is spirally connected with the first screw rod sliding block (13), the first screw rod sliding block (13) is connected with the connecting rod (15), and the connecting rod (15) is connected with the connecting plate (16).

3. The flexible screen curved surface laminating device according to claim 2, characterized in that: The connecting plate (16) is provided with two gears (17) engaged with each other, the back of the connecting plate (16) is fixedly provided with the third motor (18), the output end of the third motor (18) is connected with one of the gears (17), the other gear (17) is fixedly connected with the rotating rod (14), the rotating rod (14) is fixedly provided with the sticky strip (21), the back of the work box (1) is provided with the sliding groove (19), the rotating rod (14) is fixedly provided with the sliding groove sliding block (20), and the sliding groove sliding block (20) is movably arranged on the sliding groove (19).

4. The flexible screen curved surface laminating device according to claim 3, characterized in that: The fitting mechanism comprises a first sleeve (22), a first telescopic rod (23), a curved cover plate placing table (24), a first cylinder (25), a fixed hole (26), a fixed plate (27) and a second cylinder (28), two first sleeves (22) are fixedly arranged on the bottom surface of the working box (1), a first telescopic rod (23) is movably arranged in the first sleeve (22), the output end of the first telescopic rod (23) is connected with the curved cover plate placing table (24), a first cylinder (25) is fixedly arranged on the bottom surface of the working box (1), and the output end of the first cylinder (25) is connected with the curved cover plate placing table (24).

5. The flexible screen curved surface laminating device according to claim 4, characterized in that: The top of the curved cover plate placing table (24) is provided with a fixed hole (26), and the top surface of the curved cover plate placing table (24) is provided with a fixed plate (27) and two second cylinders (28) on the two sides, respectively.

6. The flexible screen curved surface laminating device according to claim 5, characterized in that: The flattening mechanism comprises a second screw rod (29), a smooth rod groove (30), a smooth rod (31), a third motor (32), a second sleeve (33), a second telescopic rod (34), a second screw rod sliding block (35), a fourth motor (36), a flattening roller (37) and a reset cylinder (38), the second screw rod (29) and the smooth rod groove (30) are arranged on the front and rear sides of the bottom surface of the working box (1), respectively, the smooth rod groove (30) is provided with a smooth rod (31), a third motor (32) is fixedly arranged on the side wall of the working box (1), the output end of the third motor (32) is connected with the second screw rod (29), and the second screw rod (29) and the smooth rod (31) are movably provided with a second screw rod sliding block (35) and a second sleeve (33) respectively.

7. The flexible screen curved surface laminating device according to claim 6, characterized in that: The second sleeve (33) is movably provided with a second telescopic rod (34), the flattening roller (37) is movably arranged between the two second telescopic rods (34), a fourth motor (36) is fixedly arranged on one second telescopic rod (34), the output end of the fourth motor (36) is connected with the second telescopic rod (34), and the second sleeve (33) is fixedly provided with a reset cylinder (38).

Images