Film covering device of display panel

Abstract

The invention discloses a film covering device for a display panel. The film covering device comprises a panel conveying mechanism, a film collecting and releasing mechanism, a film stripping and covering mechanism, a first visual positioning assembly and a second visual positioning assembly. The panel conveying mechanism is configured to be capable of moving between the feeding and discharging station and the film covering station and used for bearing the display panel. The film material winding and unwinding mechanism is used for feeding the film material into the film stripping station and recycling the film material base material after the protective film sheet is stripped; the film stripping and laminating mechanism is configured to be capable of moving between the laminating station and the film stripping station, and is used for stripping, adsorbing and fixing the protective film on the film stripping station, and pressing and attaching the protective film on the display panel on the laminating station; the first visual positioning assembly is used for performing visual positioning on the display panel; and the second visual positioning assembly is used for performing visual positioning on the protective film. According to the scheme, the protective film can be quickly, accurately and stably attached to the display panel, and the film covering precision and efficiency are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of display screen manufacturing equipment, and in particular relates to a coating device for a display panel. Background Art

[0002] During the production process of display panels, protective films need to be attached to the display screen to prevent the display panel from being scratched during movement and testing. The most common display panel film attaching operation is often done manually, but due to the problems of poor precision and low efficiency of manual lamination, the industry has developed some automatic film attaching machines for attaching protective films to real panels. The existing automatic film attaching machines have a need to further improve their laminating accuracy and efficiency. Summary of the invention

[0003] In view of this, the present invention provides a coating device for a display panel to solve the problem of how to improve the coating accuracy and efficiency.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A coating device for a display panel comprises a support frame and a panel conveying mechanism connected to the support frame, a film material receiving and releasing mechanism, a film stripping and coating mechanism, a first visual positioning component and a second visual positioning component;

[0006] The panel conveying mechanism is configured to be able to move between the loading and unloading stations and the laminating station, and is used to carry the display panel;

[0007] The film material retracting and releasing mechanism is used to send the film material including the protective film sheet and the film material base material into the film stripping station, and to recover the film material base material after the protective film sheet is stripped;

[0008] The film stripping and laminating mechanism is configured to be able to move between the laminating station and the film stripping station, and is used to peel off the protective film sheet from the film material substrate and fix it by adsorption at the film stripping station, and to press the protective film sheet onto the display panel at the laminating station;

[0009] The first visual positioning component is disposed between the loading and unloading station and the laminating station, and is used to perform visual positioning on the display panel loaded on the panel conveying mechanism;

[0010] The second visual positioning component is arranged between the laminating station and the stripping station, and is used for visually positioning the protective film sheet adsorbed and fixed on the stripping and laminating mechanism.

[0011] The film-receiving and releasing mechanism comprises a film-stripping platform, a material-discharging assembly and a material-collecting assembly, wherein the film-stripping platform is arranged in the film-stripping station, and the material-discharging assembly and the material-collecting assembly are respectively arranged on the sides of the film-stripping platform; the material-discharging assembly transports the film material from the first end of the film-stripping platform to the film-stripping platform, and the film-stripping and laminating mechanism peels off the protective film sheet from the film material substrate and adsorbs and fixes it on the film-stripping platform, and the material-collecting assembly pulls the film material substrate after the protective film sheet is peeled off downward along the second end of the film-stripping platform and recycles it; the second end of the film-stripping platform is formed with a chamfered inclined surface inclined downward and toward the first end of the film-stripping platform, and a film-stripping roller is arranged below the chamfered inclined surface, and the film material substrate is pulled out from the gap between the chamfered inclined surface and the film-stripping roller at the second end of the film-stripping platform;

[0012] Wherein, the film stripping and laminating mechanism includes a first linear drive module, a first lifting module, a connecting plate, a swing assembly, a second lifting module, a protective film carrier and a top pressure roller; the first linear drive module is arranged on the supporting frame and connected between the laminating station and the stripping station, the first lifting module is movably connected to the first linear drive module, and the connecting plate is connected to the output end of the first lifting module; the protective film carrier is located below the connecting plate, and the protective film carrier is connected to the connecting plate through the swing assembly, and the swing assembly is configured to drive the protective film carrier to rotate relative to the connecting plate, and the protective film carrier is used to adsorb and fix the protective film sheet; the top pressure roller is arranged on the side of the protective film carrier and is connected to the connecting plate through the second lifting module.

[0013] In a preferred solution, the panel transport mechanism includes a third linear drive module and a panel carrier. The third linear drive module is arranged on the support frame and connected between the loading and unloading station and the laminating station. The panel carrier is movably connected to the third linear drive module. A Q-axis drive module capable of driving the panel carrier to rotate within the surface is arranged in the panel carrier. The display panel is loaded on the panel carrier.

[0014] In a preferred solution, a first ion wind bar is connected to the side of the support frame located at the laminating station, and the first ion wind bar is used to remove static electricity and dust from the display panel loaded on the panel conveying mechanism.

[0015] In a preferred embodiment, a film stripping wind rod is provided below the film stripping roller.

[0016] In a preferred solution, a second ion wind rod is connected to the support frame between the laminating station and the stripping station, and the second ion wind rod is used to remove static electricity and dust from the protective film adsorbed and fixed on the stripping and laminating mechanism.

[0017] In a preferred embodiment, the swinging assembly includes a rotating module and a third lifting module, the first end of the protective film carrier is connected to the connecting plate through the third lifting module, the middle part of the protective film carrier is rotatably connected to the bottom of the connecting plate through the rotating module, and the pressure roller is connected to the connecting plate through the second lifting module on the outer side of the second end adjacent to the protective film carrier.

[0018] In a preferred embodiment, the rotating module includes a bearing seat connected to the bottom of the connecting plate and a rotating shaft rotatably connected to the bearing seat, and the protective film carrier is fixedly connected to the rotating shaft via a connecting block.

[0019] In a preferred solution, an auxiliary platform flush with the protective film carrier is provided on the outer side of the second end of the protective film carrier, and the auxiliary platform is connected to the connecting plate via a second linear drive module. The auxiliary platform can slide to the bottom of the pressure roller and abut against the second end of the protective film carrier through the drive of the second linear drive module; when the protective film sheet is adsorbed and fixed on the protective film carrier, one end of the protective film sheet extends from the second end of the protective film carrier and is connected to the auxiliary carrier.

[0020] In a preferred solution, the first visual positioning component includes a second bracket, a fourth linear drive module, a first CCD camera and a second CCD camera, the second bracket is connected to the support frame and is located between the loading and unloading station and the laminating station, the fourth linear drive module is connected to the second bracket, the first CCD camera is fixedly connected to the first end of the fourth linear drive module, and the second CCD camera is movably connected to the fourth linear drive module; the lenses of the first CCD camera and the second CCD camera face downward and are higher than the upper surface of the panel conveying mechanism.

[0021] In a preferred solution, the second visual positioning component includes a fifth linear drive module, a third CCD camera and a fourth CCD camera, the fifth linear drive module is connected to the support frame and is located between the laminating station and the stripping station, the third CCD camera is fixedly connected to the first end of the fifth linear drive module, and the fourth CCD camera is movably connected to the fifth linear drive module; the lenses of the third CCD camera and the fourth CCD camera face upward and are lower than the lower surface of the film stripping and laminating mechanism.

[0022] The coating device for the display panel provided in the embodiment of the present invention improves the film stripping and coating mechanism and the film material retracting and releasing mechanism, so that the process of peeling off and grasping the protective film sheet and the process of attaching the protective film sheet are more stable. The display panel and the protective film sheet are visually positioned in combination with the visual positioning component, and the display panel and the protective film sheet are accurately aligned, thereby achieving fast, accurate and stable attachment of the protective film sheet to the display panel, thereby improving the coating accuracy and efficiency of the automated coating equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a top view of the structure of the coating device according to an embodiment of the present invention;

[0024] Figure 2 is a three-dimensional diagram of a coating device according to an embodiment of the present invention;

[0025] Figure 3 is a structural schematic diagram of a panel conveying mechanism according to an embodiment of the present invention;

[0026] Figure 4 is a structural schematic diagram of a film material retracting and releasing mechanism according to an embodiment of the present invention;

[0027] Figure 5 Yes Figure 4 A magnified schematic diagram of part A;

[0028] Figure 6 is a structural schematic diagram of a film stripping and laminating mechanism according to an embodiment of the present invention;

[0029] Figure 7 It is a partial structure enlarged schematic diagram of the film stripping and laminating mechanism of an embodiment of the present invention;

[0030] Figure 8 is a schematic structural diagram of a top pressure roller according to an embodiment of the present invention;

[0031] Fig. 9 is a schematic structural diagram of an auxiliary stage according to an embodiment of the present invention;

[0032] Fig.10 is a schematic structural diagram of a first visual positioning component according to an embodiment of the present invention;

[0033] Fig.11 It is a schematic structural diagram of a second visual positioning component of an embodiment of the present invention. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the present invention clearer, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. Examples of these preferred embodiments are illustrated in the accompanying drawings. The embodiments of the present invention shown in the accompanying drawings and described according to the accompanying drawings are merely exemplary, and the present invention is not limited to these embodiments.

[0035] It should be noted that the same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0036] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the solutions according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0037] An embodiment of the present invention provides a coating device for a display panel, such as Figures 1 to 11 As shown, the laminating device mainly includes a supporting frame 1 and a panel conveying mechanism 2 connected to the supporting frame 1, a film material retracting and releasing mechanism 3, a film stripping and laminating mechanism 4, a first visual positioning component 5 and a second visual positioning component 6.

[0038] The panel conveying mechanism 2 is configured to be able to move between the loading and unloading station 100 and the laminating station 200 , and the panel conveying mechanism 2 is used to carry the display panel 10 .

[0039] The film material retracting and releasing mechanism 3 is used to deliver the film material 7 including the protective film sheet 71 and the film material base material 72 into the film stripping station 300 , and to recover the film material base material 72 after the protective film sheet 71 is stripped off.

[0040] Among them, the stripping and laminating mechanism 4 is configured to be able to move between the laminating station 200 and the stripping station 300, and the stripping and laminating mechanism 4 is used to peel off and adsorb and fix the protective film sheet 71 from the film material substrate 72 at the stripping station 300, and press and adhere the protective film sheet 71 to the display panel 10 at the laminating station 200.

[0041] The first visual positioning component 5 is disposed between the loading and unloading station 100 and the laminating station 200 , and the first visual positioning component 5 is used for visually positioning the display panel 10 loaded on the panel conveying mechanism 2 .

[0042] The second visual positioning component 6 is disposed between the laminating station 200 and the stripping station 300 , and is used for visually positioning the protective film sheet 71 adsorbed and fixed on the stripping and laminating mechanism 4 .

[0043] In this embodiment, refer to Figure 2 and Figure 3 As shown, the panel conveying mechanism 2 mainly includes a third linear drive module 21 and a panel carrier 22. The third linear drive module 21 is arranged on the support frame 1 and connected between the loading and unloading station 100 and the laminating station 200. The panel carrier 22 is movably connected to the third linear drive module 21, and the display panel 10 is loaded on the panel carrier 22. Driven by the third linear drive module 21, the panel carrier 22 can move between the loading and unloading station 100 and the laminating station 200. Among them, the panel carrier 22 is a vacuum adsorption platform, which fixes the display panel 10 by vacuum adsorption.

[0044] Specifically, the third linear drive module 21 includes a cylinder 211, a screw 212, a sliding seat 213 and a guide rail 214. The screw 212 is connected to the output end of the cylinder 211. The sliding seat 213 is connected to the screw 212 and slidably connected to the guide rail 214. The guide rail 214 extends from the loading and unloading station 100 and is connected to the laminating station 200. The panel stage 22 is connected to the sliding seat 213, and a Q-axis driving module (not shown in the drawings) capable of driving the panel stage 22 to rotate in the plane is provided in the panel stage 22.

[0045] Furthermore, a first ion wind bar 23 is connected to the side of the laminating station 200 on the support frame 1, and the first ion wind bar 23 is used to remove static electricity and dust from the display panel 10 loaded on the panel carrier 22. The first ion wind bar 23 blows ion wind to remove static electricity and dust from the display panel 10, so as to avoid static electricity damage to the display panel 10 or bubbles due to dust during the laminating process.

[0046] In this embodiment, refer to Figure 2 as well as Figure 4 and Figure 5As shown, the film material retracting mechanism 3 includes a film stripping platform 31, a material discharging assembly 32 and a material receiving assembly 33. The film stripping platform 31 is arranged in the film stripping station 300, and the material discharging assembly 32 and the material receiving assembly 33 are respectively arranged on the sides of the film stripping platform 31.

[0047] Among them, the unloading component 32 transports the film material 7 from the first end of the film stripping platform 31 to the film stripping platform 31, the film stripping and laminating mechanism 4 peels off the protective film sheet 71 from the film material substrate 72 on the film stripping platform 31 and adsorbs and fixes it, and the receiving component 33 pulls the film material substrate 72 downward along the second end of the film stripping platform 31 after peeling off the protective film sheet 71 and recovers it.

[0048] It should be noted that, in the length direction of the film material 7, a plurality of mutually independent protective film sheets 71 are sequentially connected to the film material base material 72, that is, the film stripping and laminating mechanism 4 strips and adsorbs and fixes one protective film sheet 71 each time.

[0049] The second end of the film stripping platform 31 is formed with a chamfered surface 311 that is inclined downward and toward the first end of the film stripping platform 31, that is, the second end of the film stripping platform 31 is formed with a linear sharp corner (the angle between the top plane and the chamfered surface) extending along its width direction. A film stripping roller 312 is arranged below the chamfered surface 311, and the film material substrate 72 is pulled out from the gap between the chamfered surface 311 and the film stripping roller 312 at the second end of the film stripping platform 31. After the film material 7 is transported to the film stripping platform 31, the film material substrate 72 is pulled out from the gap between the chamfered surface 311 and the film stripping roller 312 at the second end of the film stripping platform 31. As a result, at the linear sharp corner, the protective film sheet 71 and the film material substrate 72 form a separation port, which can make it easier for the film stripping and laminating mechanism 4 to peel off the protective film sheet 71, thereby improving the efficiency of the overall laminating operation.

[0050] In a preferred embodiment, the angle of the linear sharp corner is set to be no greater than 30°, that is, in the film stripping platform 31, the angle between the top plane and the chamfered slope 311 is no greater than 30°.

[0051] Furthermore, a film stripping wind bar 313 is provided below the film stripping roller 312. The film stripping wind bar 313 blows air toward the separation opening of the protective film sheet 71 and the film material substrate 72, which can promote the separation of the protective film sheet 71 from the film material substrate 72 on the one hand, and blow the protective film sheet 71 toward the film stripping and laminating mechanism 4 above on the other hand, which can make the peeling and grabbing process of the protective film sheet 71 by the film stripping and laminating mechanism 4 more stable and smooth, so that the protective film sheet 71 can be more stably adsorbed and fixed on the film stripping and laminating mechanism 4.

[0052] Specifically, in this embodiment, the unloading component 32 includes a unloading roller 321 and a plurality of first guide rollers 322, the unloading roller 321 is arranged on the first end side of the film stripping platform 31, and the plurality of first guide rollers 322 are sequentially arranged between the unloading roller 321 and the first end of the film stripping platform 31; the receiving component 33 includes a receiving roller 331 and a plurality of second guide rollers 332, the receiving roller 331 is arranged on the first end side of the film stripping platform 31 and is relatively below the unloading roller 321, and the plurality of second guide rollers 332 are sequentially arranged between the receiving roller 331 and the second end of the film stripping platform 31 below the film stripping platform 31.

[0053] The film material 7 is wound on the unwinding roller 321, and is transported from the first end of the film stripping platform 31 to the film stripping platform 31 via the guidance of the first guide rollers 322; after peeling off the protective film sheet 71, the film material substrate 72 is pulled downward along the second end of the film stripping platform 31, and is then transported to the receiving roller 331 and wound on the receiving roller 331 via the guidance of the second guide rollers 332; at least the receiving roller 331 is configured to be able to rotate actively.

[0054] Furthermore, in this embodiment, a second ion wind bar 34 is connected to the outer side of the second end of the film stripping platform 31 on the support frame 1, and the second ion wind bar 34 is used to remove static electricity and dust from the protective film sheet 71 adsorbed and fixed on the film stripping and laminating mechanism 4. That is, the second ion wind bar 34 is located between the laminating station 200 and the film stripping station 300. When the film stripping and laminating mechanism 4 peels off and adsorbs and fixes the protective film sheet 71 at the film stripping station 300, when the protective film sheet 71 is transferred to the laminating station 200, when passing over the second ion wind bar 34, the second ion wind bar 34 blows ion wind to remove static electricity and dust from the protective film sheet 71, so as to avoid electrostatic damage to the display panel 10 or bubbles due to dust during the laminating process.

[0055] In this embodiment, refer to Figure 2as well as Figures 6 to 9 As shown, the film stripping and laminating mechanism 4 mainly includes a first linear driving module 41 , a first lifting module 42 , a connecting plate 43 , a swing assembly 44 , a second lifting module 45 , a protective film carrier 46 and a top pressure roller 47 .

[0056] The first linear drive module 41 is disposed on the support frame 1 and connected between the laminating station 200 and the stripping station 300, the first lifting module 42 is movably connected to the first linear drive module 41, and the connecting plate 43 is connected to the output end of the first lifting module 42. Specifically, the support frame 1 is connected to a first bracket 40, and the first linear drive module 41 is connected to the first bracket 40 and extends from the relative upper side of the laminating station 200 to the relative upper side of the stripping station 300.

[0057] The protective film carrier 46 is located below the connecting plate 43, and the protective film carrier 46 is connected to the connecting plate 43 through the swing assembly 44. The swing assembly 44 is configured to drive the protective film carrier 46 to rotate relative to the connecting plate 43. The protective film carrier 46 is used to adsorb and fix the protective film sheet 71; the top pressure roller 47 is arranged on the side of the protective film carrier 46 and connected to the connecting plate 43 through the second lifting module 45. The protective film carrier 46 is a vacuum adsorption platform, and the protective film sheet 71 is fixed by vacuum adsorption.

[0058] Among them, when stripping the film, the swing component 44 drives the protective film carrier 46 to be horizontal, and the first lifting module 42 drives the protective film carrier 46 to descend and press against the film material 7 on the film stripping carrier 31, and fixes it through vacuum adsorption, peels off and adsorbs the protective film sheet 71. Combined with the auxiliary film stripping structure with linear sharp edges formed at the second end of the film stripping carrier 31, the peeling and grasping process of the protective film carrier 46 for the protective film sheet 71 can be more stable and smooth, so that the protective film sheet 71 can be more stably adsorbed and fixed on the protective film carrier 46.

[0059] When laminating, the swing component 44 drives the protective film carrier 46 to be inclined, the first lifting module 42 drives the protective film carrier 46 to descend so that its second end drives the protective film sheet 71 to be pressed and attached to the display panel 10, the second lifting module 45 drives the pressing roller 47 to descend and press onto the display panel 10, the first linear drive module 41 drives the first lifting module 42 to drive the protective film carrier 46 and the pressing roller 47 to move on the surface of the display panel 10, and during the movement of the protective film carrier 46, the protective film sheet 71 gradually falls off the protective film carrier 46 and is pressed and attached to the display panel 10, and the pressing roller 47 rolls on the display panel 10 to press the protective film sheet 71, so that the protective film sheet 71 is more closely attached to the display panel 10. The protective film carrier 46 is inclined during lamination. On the one hand, it can make the protective film sheet 71 more smoothly detach from the protective film carrier 46 and adhere to the display panel 10. On the other hand, it can also prevent the first end of the protective film carrier 46 from scratching the display panel 10 during the movement of the protective film carrier 46 for lamination, thereby improving the stability and efficiency of the lamination process.

[0060] In this embodiment, the first lifting module 42 and the second lifting module 45 preferably use cylinders. In a preferred solution, the connecting plate 43 is equipped with an electric proportional valve 43a, which is connected to the first lifting module 42 and the second lifting module 45, and is used to accurately control the pressure of the protective film carrier 46 and the pressing roller 47 pressing on the display panel 10, so as to avoid excessive pressure during the lamination process and damage to the display panel 10.

[0061] In a specific scheme, the swing assembly 44 includes a rotating module 44a and a third lifting module 44b, the first end of the protective film carrier 46 is connected to the connecting plate 43 through the third lifting module 44b, the middle part of the protective film carrier 46 is rotatably connected to the bottom of the connecting plate 43 through the rotating module 44a, and the pressing roller 47 is connected to the connecting plate 43 through the second lifting module 45 on the outer side of the second end adjacent to the protective film carrier 46.

[0062] Furthermore, in this embodiment, the rotating module 44a includes a bearing seat 441 connected to the bottom of the connecting plate 43 and a rotating shaft 442 rotatably connected to the bearing seat 441 , and the protective film carrier 46 is fixedly connected to the rotating shaft 442 via a connecting block 443 .

[0063] In a specific solution, the output end of the second lifting module 45 is connected to a roller fixing seat 45a, and the pressing roller 47 is rotatably connected to the roller fixing seat 45a. The pressing roller 47 includes a first pressing roller 47a and a second pressing roller 47b which are rotatably connected to the roller fixing seat 45a and are linked to each other. The first pressing roller 47a and the second pressing roller 47b are mutually contacted from bottom to top in the roller fixing seat 45a.

[0064] The second end side of the connecting plate 43 is connected to a fixed support plate 45b, the second lifting module 45 is connected to the fixed support plate 45b, and the output end of the second lifting module 45 extends from the bottom of the fixed support plate 45b and is connected to the roller fixing seat 45a. Furthermore, a plurality of guide posts 45c are slidably connected to the fixed support plate 45b, and the guide posts 45c are penetrated on the fixed support plate 45b and connected to the roller fixing seat 45a.

[0065] As a preferred solution, in this embodiment, an auxiliary platform 48 flush with the protective film carrier 46 is provided on the outer side of the second end of the protective film carrier 46, and the auxiliary platform 48 is connected to the connecting plate 43 through a second linear drive module 49. Specifically, the second linear drive module 49 is connected to the connecting plate 43, and the auxiliary platform 48 is connected to the second linear drive module 49 through a connecting bracket 49a. The auxiliary platform 48 can slide to the bottom of the top pressure roller 47 and abut against the second end of the protective film carrier 46 through the drive of the second linear drive module 49. When the protective film sheet 71 is adsorbed and fixed on the protective film carrier 46, one end of the protective film sheet 71 extends from the second end of the protective film carrier 46 and is connected to the auxiliary platform 48. The auxiliary platform 48 is a vacuum adsorption platform.

[0066] During the film laminating process: first, the second linear drive module 49 drives the auxiliary stage 48 to move in the direction away from the second end of the protective film stage 46, exposing the pressing roller 47 above, and the part of the protective film sheet 71 originally connected to the auxiliary stage 48 is located below the pressing roller 47; then, the protective film stage 46 is controlled to be pressed down in an inclined manner so that the extended part of the protective film sheet 71 is attached to the display panel 10; then the pressing roller 47 is controlled to be pressed down, pressing the extended part of the protective film sheet 71, and then the protective film stage 46 is driven to move horizontally to continue laminating. Therefore, before the protective film stage 46 moves horizontally to continue laminating, one end of the protective film sheet 71 is pressed by the pressing roller 47 and is stably fixed, avoiding displacement caused by the lateral movement of the protective film stage 46 to continue laminating, further improving the laminating accuracy.

[0067] In this embodiment, refer to Figure 2 and Fig.10 As shown, the first visual positioning component 5 includes a second bracket 51, a fourth linear drive module 52, a first CCD camera 53 and a second CCD camera 54. The second bracket 51 is connected to the support frame 1 and is located between the loading and unloading station 100 and the laminating station 200. The fourth linear drive module 52 is connected to the second bracket 51. The first CCD camera 53 is fixedly connected to the first end of the fourth linear drive module 52. The second CCD camera 54 is movably connected to the fourth linear drive module 52. The lenses of the first CCD camera 53 and the second CCD camera 54 face downward and are higher than the upper surface of the panel conveying mechanism 2. After the display panel 10 is loaded at the loading and unloading station 100, the panel conveying mechanism 2 transfers the display panel 10 to the laminating station 200. When passing under the first visual positioning component 5, the first CCD camera 53 and the second CCD camera 54 acquire the image information of the display panel 10, and then position the display panel 10.

[0068] In this embodiment, refer to Figure 2 and Fig.11As shown, the second visual positioning component 6 includes a fifth linear drive module 61, a third CCD camera 62 and a fourth CCD camera 63. The fifth linear drive module 61 is connected to the support frame 1 and is located between the laminating station 200 and the stripping station 300. The third CCD camera 62 is fixedly connected to the first end of the fifth linear drive module 61, and the fourth CCD camera 63 is movably connected to the fifth linear drive module 62. The lenses of the third CCD camera 62 and the fourth CCD camera 63 face upward and are lower than the lower surface of the stripping and laminating mechanism 4. When the stripping and laminating mechanism 4 peels off and adsorbs and fixes the protective film sheet 71 at the stripping station 300, the protective film sheet 71 is transferred to the laminating station 200. When passing above the second visual positioning component 6, the image information of the protective film sheet 71 is obtained by the third CCD camera 62 and the fourth CCD camera 63, and the protective film sheet 71 is positioned.

[0069] The laminating device provided in the above embodiment, wherein the laminating operation of laminating the protective film sheet 71 on the display panel 10 includes the following steps:

[0070] S1. Load the display panel 10 onto the panel carrier 22 of the panel conveying mechanism 2 at the loading and unloading station 100, and drive the panel carrier 22 to move toward the laminating station 200.

[0071] S2. When the panel carrier 22 moves under the first visual positioning component 5, the first visual positioning component 5 positions the display panel 10 on the panel carrier 22 through image information obtained by the first CCD camera 53 and the second CCD camera 54.

[0072] S3 , the panel carrier 22 moves to the laminating station 200 , and controls the first ion wind rod 23 to blow ion wind to remove static electricity and dust from the display panel 10 .

[0073] S4, the film material taking-up and releasing mechanism 3 is used to deliver the film material 7 including the protective film sheet 71 and the film material base material 72 into the film stripping station 300.

[0074] S5. The film stripping and laminating mechanism 4 moves to above the film stripping station 300, and the swing component 44 drives the protective film carrier 46 to be horizontal. The first lifting module 42 drives the protective film carrier 46 to descend and press the film material 7 on the film stripping carrier 31, and fixes it by vacuum adsorption. Combined with the auxiliary film stripping structure with linear sharp edges formed at the second end of the film stripping carrier 31, the protective film sheet 71 is peeled off and adsorbed, and one end of the protective film sheet 71 extends from the second end of the protective film carrier 46 and is connected to the auxiliary carrier 48.

[0075] S6. The film stripping and laminating mechanism 4 moves the adsorbed and fixed protective film sheet 71 toward the laminating station 200; when it moves to above the second ion wind rod 34, it controls the second ion wind rod 34 to blow ion wind to remove static electricity and dust from the protective film sheet 71; when it moves to above the second visual positioning component 6, the second visual positioning component 6 positions the protective film sheet 71 on the protective film carrier 46 through the image information obtained by the third CCD camera 62 and the fourth CCD camera 63.

[0076] S7, the stripping and laminating mechanism 4 moves the protective film sheet 71 to the laminating station 200 and is located on the display panel 10, and based on the positioning information obtained in steps S2 and S6, the position of the panel carrier 22 is adjusted by the third linear drive module 21 and the Q-axis drive module and / or the position of the protective film carrier 46 is adjusted by the first linear drive module 41, so that the display panel 10 on the panel carrier 22 and the protective film sheet 71 on the protective film carrier 46 are precisely aligned.

[0077] S8. The second linear drive module 49 drives the auxiliary platform 48 to move toward the direction away from the second end of the protective film platform 46, exposing the top pressure roller 47, and the part of the protective film sheet 71 originally connected to the auxiliary platform 48 extends to the bottom of the pressure roller 47.

[0078] S9. The protective film carrier 46 is driven by the swing component 44 to be inclined, and the first lifting module 42 drives the protective film carrier 46 to descend so that its second end drives the extended portion of the protective film sheet 71 to adhere to the display panel 10, and the second lifting module 45 drives the pressing roller 47 to descend and press on the extended portion of the protective film sheet 71.

[0079] S10, the first linear drive module 41 drives the first lifting module 42 to drive the protective film carrier 46 and the pressing roller 47 to move on the surface of the display panel 10. During the movement of the protective film carrier 46, the protective film sheet 71 gradually falls off the protective film carrier 46 and is pressed and attached to the display panel 10, and the pressing roller 47 rolls on the display panel 10 to press the protective film sheet 71.

[0080] S11, after the protective film sheet 71 is attached, the protective film carrier 46 is driven to rise and adjusted to a horizontal state, the pressing roller 47 is driven to rise, and the auxiliary carrier 48 is driven to move to the bottom of the pressing roller 47 and abut against the second end of the protective film carrier 46.

[0081] S12 , driving the panel carrier 22 to move to the loading and unloading station 100 , and unloading the display panel 10 to which the protective film 71 is attached.

[0082] To summarize, the laminating device for the display panel provided in the embodiment of the present invention improves the film stripping and laminating mechanism and the film material retracting and releasing mechanism, so that the process of stripping and grasping the protective film sheet and the process of attaching the protective film sheet are more stable. The display panel and the protective film sheet are visually positioned in combination with the visual positioning component, and the display panel and the protective film sheet are precisely aligned, thereby achieving fast, accurate and stable attachment of the protective film sheet to the display panel, thereby improving the laminating accuracy and efficiency of the automated laminating equipment.

[0083] The above is only a specific implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A coating device for a display panel, characterized in that: It includes a support frame and a panel conveying mechanism connected to the support frame, a film material receiving and releasing mechanism, a film stripping and laminating mechanism, a first visual positioning component and a second visual positioning component; The panel conveying mechanism is configured to be able to move between the loading and unloading stations and the laminating station, and is used to carry the display panel; The film material retracting and releasing mechanism is used to send the film material including the protective film sheet and the film material base material into the film stripping station, and to recover the film material base material after the protective film sheet is stripped; The film stripping and laminating mechanism is configured to be able to move between the laminating station and the film stripping station, and is used to peel off the protective film sheet from the film material substrate and fix it by adsorption at the film stripping station, and to press the protective film sheet onto the display panel at the laminating station; The first visual positioning component is disposed between the loading and unloading station and the laminating station, and is used to perform visual positioning on the display panel loaded on the panel conveying mechanism; The second visual positioning component is arranged between the laminating station and the stripping station, and is used for visually positioning the protective film sheet adsorbed and fixed on the stripping and laminating mechanism. The film-receiving and releasing mechanism comprises a film-stripping platform, a material-discharging assembly and a material-collecting assembly, wherein the film-stripping platform is arranged in the film-stripping station, and the material-discharging assembly and the material-collecting assembly are respectively arranged on the sides of the film-stripping platform; the material-discharging assembly transports the film material from the first end of the film-stripping platform to the film-stripping platform, and the film-stripping and laminating mechanism peels off the protective film sheet from the film material substrate and adsorbs and fixes it on the film-stripping platform, and the material-collecting assembly pulls the film material substrate after the protective film sheet is peeled off downward along the second end of the film-stripping platform and recycles it; the second end of the film-stripping platform is formed with a chamfered inclined surface inclined downward and toward the first end of the film-stripping platform, and a film-stripping roller is arranged below the chamfered inclined surface, and the film material substrate is pulled out from the gap between the chamfered inclined surface and the film-stripping roller at the second end of the film-stripping platform; Wherein, the film stripping and laminating mechanism includes a first linear drive module, a first lifting module, a connecting plate, a swing assembly, a second lifting module, a protective film carrier and a top pressure roller; the first linear drive module is arranged on the supporting frame and connected between the laminating station and the stripping station, the first lifting module is movably connected to the first linear drive module, and the connecting plate is connected to the output end of the first lifting module; the protective film carrier is located below the connecting plate, and the protective film carrier is connected to the connecting plate through the swing assembly, and the swing assembly is configured to drive the protective film carrier to rotate relative to the connecting plate, and the protective film carrier is used to adsorb and fix the protective film sheet; the top pressure roller is arranged on the side of the protective film carrier and is connected to the connecting plate through the second lifting module.

2. The coating device according to claim 1, characterized in that: The panel transport mechanism includes a third linear drive module and a panel carrier. The third linear drive module is arranged on the support frame and connected between the loading and unloading station and the laminating station. The panel carrier is movably connected to the third linear drive module. A Q-axis drive module capable of driving the panel carrier to rotate within the surface is arranged in the panel carrier. The display panel is loaded on the panel carrier.

3. The coating device according to claim 2, characterized in that: A first ion wind bar is connected to the side of the support frame located at the laminating station, and the first ion wind bar is used to remove static electricity and dust from the display panel loaded on the panel conveying mechanism.

4. The coating device according to claim 1, characterized in that: A film stripping wind rod is arranged below the film stripping roller.

5. The coating device according to claim 4, characterized in that: A second ion wind rod is connected to the support frame between the laminating station and the stripping station, and the second ion wind rod is used to remove static electricity and dust from the protective film sheet adsorbed and fixed on the stripping and laminating mechanism.

6. The coating device according to any one of claims 1 to 5, characterized in that: The swing assembly includes a rotating module and a third lifting module. The first end of the protective film carrier is connected to the connecting plate through the third lifting module. The middle part of the protective film carrier is rotatably connected to the bottom of the connecting plate through the rotating module. The pressure roller is connected to the connecting plate through the second lifting module at the outer side of the second end adjacent to the protective film carrier.

7. The coating device according to claim 6, characterized in that: The rotating module includes a bearing seat connected to the bottom of the connecting plate and a rotating shaft rotatably connected to the bearing seat, and the protective film carrier is fixedly connected to the rotating shaft through a connecting block.

8. The coating device according to claim 6, characterized in that: An auxiliary platform flush with the protective film carrier is provided on the outer side of the second end of the protective film carrier, and the auxiliary platform is connected to the connecting plate through a second linear drive module. The auxiliary platform can slide to the bottom of the top pressure roller and abut against the second end of the protective film carrier through the drive of the second linear drive module; when the protective film sheet is adsorbed and fixed on the protective film carrier, one end of the protective film sheet extends from the second end of the protective film carrier and is connected to the auxiliary platform.

9. The coating device according to claim 1, characterized in that: The first visual positioning component includes a second bracket, a fourth linear drive module, a first CCD camera and a second CCD camera. The second bracket is connected to the support frame and is located between the loading and unloading station and the laminating station. The fourth linear drive module is connected to the second bracket. The first CCD camera is fixedly connected to the first end of the fourth linear drive module, and the second CCD camera is movably connected to the fourth linear drive module. The lenses of the first CCD camera and the second CCD camera face downward and are higher than the upper surface of the panel conveying mechanism.

10. The coating device according to claim 1, characterized in that: The second visual positioning component includes a fifth linear drive module, a third CCD camera and a fourth CCD camera. The fifth linear drive module is connected to the supporting frame and is located between the laminating station and the stripping station. The third CCD camera is fixedly connected to the first end of the fifth linear drive module, and the fourth CCD camera is movably connected to the fifth linear drive module. The lenses of the third CCD camera and the fourth CCD camera face upward and are lower than the lower surface of the film stripping and laminating mechanism.

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