An automatic laminating device for OCA optical adhesive and glass cover plate

Abstract

The utility model discloses an automatic laminating device of OCA optical adhesive and glass cover plate, including the lamination unit of connection in rack carrier platform, CG feeding unit and OCA feeding unit, and CG feeding unit includes CG feeding manipulator, CG transfer platform and the CG cleaning sub -unit of setting in the below of CG feeding manipulator, and OCA feeding unit includes OCA stock bin, OCA feeding manipulator, OCA transfer platform and the OCA cleaning sub -unit of setting in the above of OCA transfer platform, and lamination unit includes laminating lower platform, laminating upper platform and OCA transfer manipulator. The scheme of this application, from the feeding supply and dust cleaning treatment of glass cover plate, to the feeding supply and dust cleaning treatment of OCA optical adhesive, to the mutual lamination of OCA optical adhesive and glass cover plate and the discharge and feeding of next process, all realize automation, thereby improve the lamination efficiency and lamination yield of OCA optical adhesive and glass cover plate, and further improve the production efficiency of liquid crystal display screen.

Description

Technical Field

[0001] This utility model belongs to the technical field of liquid crystal display manufacturing equipment, specifically relating to an automatic bonding device for OCA optical adhesive and glass cover plate. Background Technology

[0002] The manufacturing process of LCD screens involves bonding a cover glass (CG) to the display panel. This includes first bonding the cover glass to OCA optical adhesive, and then bonding the cover glass to the display panel using the same OCA adhesive to obtain a display module protected by the cover glass. A key challenge in this bonding process is automating the bonding process to improve efficiency and yield. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide an automatic bonding device for OCA optical adhesive and glass cover plates that can improve bonding efficiency and bonding yield.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An automatic bonding device for OCA optical adhesive and glass cover plate includes a frame platform and a bonding unit, a CG feeding unit and an OCA feeding unit connected to the frame platform. The bonding unit is disposed at a first end of the frame platform. The CG feeding unit and the OCA feeding unit are spaced apart from each other on the frame platform along a second direction and respectively extend from the second end of the frame platform along a first direction to the bonding unit.

[0006] The CG loading unit includes a CG loading robot and a CG transfer platform, and also includes a CG cleaning subunit disposed below the CG loading robot. The CG loading robot is used to grab and receive glass cover plates from the outside and send the glass cover plates into the CG transfer platform. The CG transfer platform is used to send the glass cover plates into the bonding unit. The CG cleaning subunit is used to perform dust removal and cleaning treatment on the glass cover plates grabbed by the CG loading robot.

[0007] The OCA loading unit includes an OCA hopper, an OCA loading robot, and an OCA transfer platform, and also includes an OCA cleaning subunit disposed above the OCA transfer platform. The OCA loading robot is used to pick up OCA optical adhesive from the OCA hopper and feed the OCA optical adhesive into the OCA transfer platform, which is used to feed the OCA optical adhesive into the bonding unit. The OCA cleaning subunit is used to perform dust removal and cleaning treatment on the OCA optical adhesive loaded on the OCA transfer platform.

[0008] The bonding unit includes a lower bonding platform, an upper bonding platform, and an OCA transfer robot. The upper bonding platform is located at the first end of the bonding unit and docks with the CG transfer platform. The OCA transfer robot is located at the second end of the bonding unit and docks with the OCA transfer platform. The lower bonding platform extends along a second direction and is configured to reciprocate between the upper bonding platform and the OCA transfer robot.

[0009] The OCA transfer robot is used to pick up and transfer the OCA optical adhesive fed from the OCA transfer platform to the lower bonding platform; the lower bonding platform is used to load the OCA optical adhesive and transfer it to the area below the upper bonding platform; the upper bonding platform is used to pick up the glass cover from the CG transfer platform and bond the glass cover to the OCA optical adhesive loaded on the lower bonding platform, and is also used to transfer the bonded product to the outside of the automatic bonding device.

[0010] In a preferred embodiment, the bonding unit further includes a CG visual alignment component, an OCA visual alignment component, and an OCA film-removing component; the CG visual alignment component is disposed at the first end of the bonding unit and located below the upper bonding platform, while the OCA visual alignment component and the OCA film-removing component are disposed in the middle of the bonding unit and mounted above the lower bonding platform; wherein, the CG visual alignment component is used for visually positioning the glass cover plate gripped on the upper bonding platform; the OCA film-removing component is used for peeling the OCA optical adhesive loaded on the lower bonding platform, and the OCA visual alignment component is used for visually positioning the OCA optical adhesive loaded on the lower bonding platform.

[0011] In a preferred embodiment, the bonding lower platform includes a first linear drive assembly, a UVW platform, and a bonding mesh box. The first linear drive assembly extends along a second direction and connects between the bonding upper platform and the OCA transfer robot. The UVW platform is movably connected to the first linear drive assembly, and the bonding mesh box is connected to the UVW platform. The OCA vision alignment assembly and the OCA film peeling assembly are disposed in the middle of the bonding unit and mounted above the first linear drive assembly.

[0012] In a preferred embodiment, the bonding platform includes a second linear drive assembly and a first gripping assembly. The second linear drive assembly is located at the first end of the bonding unit and is mounted above the frame platform. The second linear drive assembly extends along a first direction. The first gripping assembly is movably connected to the second linear drive assembly and is configured to grip and move the glass cover plate. The CG vision alignment assembly is located below the second linear drive assembly.

[0013] The OCA transfer robot includes a third linear drive assembly and a second gripping assembly. The third linear drive assembly is located at the second end of the bonding unit and connected to the frame platform. The third linear drive assembly extends along a first direction. The second gripping assembly is movably connected to the third linear drive assembly and is configured to grip and move the OCA optical adhesive.

[0014] In a preferred embodiment, the CG cleaning subunit includes an unwinding mechanism, a winding mechanism, a roller assembly, a pressing assembly, a cleaning cloth, a first guide roller group, a second guide roller group, and a cleaning agent spraying mechanism.

[0015] The cleaning cloth is arranged in the unwinding mechanism in the form of a roll. The cleaning cloth is unwound by the unwinding mechanism, connected to the idler assembly through the conduction of the first guide roller group and tensioned above the idler assembly, and then wound back into the winding mechanism through the conduction of the second guide roller group.

[0016] The top-pressing assembly is vertically and flexibly disposed below the roller assembly, configured to press the cleaning cloth upwards onto the glass cover plate to clean the glass cover plate; the cleaning agent spraying mechanism is disposed below the roller assembly and located on the side of the top-pressing assembly, and is used to spray cleaning agent onto the cleaning cloth.

[0017] In a preferred embodiment, the idler assembly includes a first idler, a second idler, a third idler, and a fourth idler arranged sequentially on a first horizontal plane, and further includes a tension roller located below the first horizontal plane and between the second idler and the third idler; the cleaning cloth released from the unwinding mechanism is sequentially connected to the upper sides of the first and second idlers, the lower side of the tension roller, and the upper sides of the third and fourth idlers, and then wound back into the winding mechanism; the tension roller is used to adjust the tension of the cleaning cloth so that the cleaning cloth is tautly connected to the first idler, the second idler, the third idler, and the fourth idler; wherein, below the first horizontal plane, a top-pressing assembly is respectively provided between the first and second idlers and between the third and fourth idlers.

[0018] In a preferred embodiment, the top-pressing assembly includes a lifting drive module and a top-pressing structural member. The top-pressing structural member is vertically and flexibly connected to the output end of the lifting drive module on the side facing the cleaning cloth. The top-pressing structural member is an elongated plate extending along the width direction of the cleaning cloth.

[0019] In a preferred embodiment, the OCA cleaning subunit includes a dust-adhesive roller assembly, which is vertically and flexibly connected above the OCA transfer platform. When the OCA transfer platform moves the OCA optical adhesive to below the dust-adhesive roller assembly, the dust-adhesive roller assembly presses against the OCA optical adhesive and rolls on the surface of the OCA optical adhesive, thereby adhering and removing dust from the surface of the OCA optical adhesive.

[0020] The OCA transfer platform is also connected to a dust-adhesive film assembly. When the dust-adhesive film assembly moves with the OCA transfer platform to below the dust-adhesive roller assembly, the dust-adhesive roller assembly presses against the dust-adhesive film assembly and rolls on the surface of the dust-adhesive film assembly, so that the dust adhering to the dust-adhesive roller assembly is transferred to the dust-adhesive film assembly.

[0021] The automatic bonding device for OCA optical adhesive and glass cover provided in this embodiment integrates a CG feeding unit for supplying the glass cover, an OCA feeding unit for supplying the OCA optical adhesive, and a bonding unit for bonding the OCA optical adhesive and the glass cover into a single automatic bonding device. The CG feeding unit includes a CG cleaning subunit, and the OCA feeding unit includes an OCA cleaning subunit. From the feeding and dust removal of the glass cover, to the feeding and dust removal of the OCA optical adhesive, and finally to the bonding of the OCA optical adhesive and the glass cover and unloading for the next process, all processes are automated. This improves the bonding efficiency and yield of the OCA optical adhesive and the glass cover, thereby increasing the production efficiency of the LCD screen. Attached Figure Description

[0022] Figure 1 This is a planar layout diagram of the automatic bonding device according to an embodiment of the present utility model;

[0023] Figure 2 This is a first-view perspective perspective view of the automatic bonding device according to an embodiment of the present utility model;

[0024] Figure 3 This is a second-view perspective perspective view of the automatic bonding device according to an embodiment of the present utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the CG loading robot according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the CG transfer platform according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the CG cleaning subunit according to an embodiment of the present invention;

[0028] Figure 7 This is a front view of the CG cleaning subunit according to an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the OCA hopper and the OCA loading robot according to an embodiment of the present invention;

[0030] Figure 9 This is a structural diagram of the OCA handover platform and the OCA cleaning subunit according to an embodiment of the present invention;

[0031] Figure 10 This is a schematic diagram of the structure of the fitting lower platform according to an embodiment of the present utility model;

[0032] Figure 11 This is a schematic diagram of the structure of the platform in an embodiment of the present invention;

[0033] Figure 12 This is a schematic diagram of the OCA transfer robot according to an embodiment of the present invention;

[0034] Figure 13 This is an enlarged illustration of the connection position of the CG visual alignment component in an embodiment of this utility model;

[0035] Figure 14 This is a structural diagram of the OCA visual alignment component and the film-peeling component according to an embodiment of the present invention. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the drawings. The embodiments of this utility model shown in and described with reference to the drawings are merely exemplary, and this utility model is not limited to these embodiments.

[0037] It should be noted that the same or similar reference numerals in the accompanying drawings of the embodiments of this utility model correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0038] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution 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.

[0039] This utility model provides an automatic bonding device for OCA optical adhesive and glass cover plates, see reference. Figures 1 to 14 As shown, the automatic bonding device for OCA optical adhesive and glass cover plates mainly includes a frame platform 100 and bonding unit 3, CG feeding unit 1, and OCA feeding unit 2 connected to the frame platform 100. The bonding unit 3 is disposed at the first end of the frame platform 100. The CG feeding unit 1 and the OCA feeding unit 2 are spaced apart from each other on the frame platform 100 along a second direction (the width direction of the frame platform 100 in this embodiment) and extend from the second end of the frame platform 100 along a first direction (the length direction of the frame platform 100 in this embodiment) to the bonding unit 3. The CG feeding unit 1 supplies the glass cover plate to the bonding unit 3, and the OCA feeding unit 2 supplies the OCA optical adhesive to the bonding unit 3. The bonding unit 3 is used to bond the received OCA optical adhesive and the glass cover plate together.

[0040] In this embodiment, the CG loading unit 1 includes a CG loading robot 1a, a CG transfer platform 1b, and a CG cleaning subunit 1c. The CG loading robot 1a is disposed at the second end of the frame platform 100 and extends along the first direction. The CG transfer platform 1b extends along the first direction and connects between the CG loading robot 1a and the bonding unit 3. The CG cleaning subunit 1c is disposed below the CG loading robot 1a. The CG loading robot 1a is used to grab and receive glass cover plates from the outside and send the glass cover plates into the CG transfer platform 1b. The CG transfer platform 1b is used to receive glass cover plates from the CG loading robot 1a and send the glass cover plates into the bonding unit 3. During the process of transferring the glass cover plates, when the CG loading robot 1a moves the glass cover plates above the CG cleaning subunit 1c, the CG cleaning subunit 1c performs dust removal and cleaning treatment on the glass cover plates grabbed by the CG loading robot 1a.

[0041] As described above, the CG loading unit 1 can automatically load the glass cover plate to the bonding unit 3 through the sequential transfer of the CG loading robot 1a and the CG transfer platform 1b. When the CG loading robot 1a picks up the glass cover plate and moves it above the CG cleaning subunit 1c, the CG cleaning subunit 1c performs dust removal and cleaning on the bonding surface of the glass cover plate to ensure that the glass cover plate can be firmly bonded to the OCA optical adhesive in the subsequent bonding process.

[0042] Specifically, see Figure 6 and Figure 7 and combined Figure 1 and Figure 2 As shown, the CG cleaning subunit 1c includes an unwinding mechanism 11, a winding mechanism 12, a roller assembly 13, a pressing assembly 14, and a cleaning cloth 15. The cleaning cloth 15 is arranged in a roll shape in the unwinding mechanism 11. The cleaning cloth 15 is released from the unwinding mechanism 11, tensioned above the roller assembly 13, and then wound back into the winding mechanism 12. The pressing assembly 14 is vertically and vertically positioned below the roller assembly 13. The pressing assembly 14 is configured to press the cleaning cloth 15 upwards against the glass cover plate to clean it. It should be noted that... Figure 6 The cleaning cloth 15 is not shown in the image.

[0043] As described above, the CG cleaning subunit 1c can be configured with the winding mechanism 12 as an active rotating mechanism and the unwinding mechanism 11 as a driven rotating mechanism. During the cleaning process of the glass cover plate, the cleaning cloth 15 is gradually transferred from the unwinding mechanism 11 to the winding mechanism 12. Specifically, when the CG loading robot 1a feeds the glass cover plate above the roller assembly 13, the pressing assembly 14 presses the cleaning cloth 15 upwards onto the lower surface of the glass cover plate. By controlling the lateral movement of the glass cover plate and the transmission of the cleaning cloth 15 from the unwinding mechanism 11 to the winding mechanism 12, the cleaning cloth 15 performs dust removal and cleaning treatment on the lower surface of the glass cover plate (the bonding surface for subsequent bonding processes) by wiping.

[0044] In the CG cleaning subunit 1c, a first guide roller group 16 is arranged between the unwinding mechanism 11 and the idler roller assembly 13 along the transmission path of the cleaning cloth 15, and a second guide roller group 17 is arranged between the idler roller assembly 13 and the winding mechanism 12. The cleaning cloth 15 released from the unwinding mechanism 11 is connected to the idler roller assembly 13 through the first guide roller group 16, and then connected to the winding mechanism 13 through the second guide roller group 17.

[0045] In a preferred embodiment, the idler assembly 13 includes a first idler 131, a second idler 132, a third idler 133, and a fourth idler 134 arranged sequentially on a first horizontal plane, and also includes a tension roller 135 located below the first horizontal plane and between the second idler 132 and the third idler 133. The cleaning cloth 15, released from the unwinding mechanism 11, is sequentially connected to the upper sides of the first idler 131 and the second idler 132, the lower side of the tension roller 135, and the upper sides of the third idler 133 and the fourth idler 134, and then wound back into the winding mechanism 12. The tension roller 135 is used to adjust the tension of the cleaning cloth 15 so that the cleaning cloth 15 is tautly connected to the first idler 131, the second idler 132, the third idler 133, and the fourth idler 134.

[0046] Furthermore, below the first horizontal plane, a top-pressing assembly 14 is respectively provided between the first idler roller 131 and the second idler roller 132, and between the third idler roller 133 and the fourth idler roller 134. Thus, the CG cleaning subunit 1c can perform two sequential cleaning processes on the lower surface of the glass cover, achieving a better cleaning effect.

[0047] The top-pressing assembly 14 includes a lifting drive module 141 and a top-pressing structural member 142. The top-pressing structural member 142 is vertically and vertically connected to the output end of the lifting drive module 141 on the side facing the cleaning cloth 15. The top-pressing structural member 142 is an elongated plate extending along the width direction of the cleaning cloth 15.

[0048] Furthermore, the CG cleaning subunit 1c also includes a cleaning agent spraying mechanism 18 disposed below the roller assembly 13 and located on the side of the top pressing assembly 14. The cleaning agent spraying mechanism 18 is used to spray cleaning agent onto the cleaning cloth 15 to further improve the cleaning effect.

[0049] In this embodiment, the OCA loading unit 2 includes an OCA hopper 2a, an OCA loading robot 2b, an OCA transfer platform 2c, and an OCA cleaning subunit 2d. The OCA hopper 2a is located at the second end of the frame platform 100. The OCA loading robot 2b extends along the first direction and connects between the OCA hopper 2a and the OCA transfer platform 2c. The OCA transfer platform 2c extends along the first direction and connects between the OCA loading robot 2b and the bonding unit 3. The OCA cleaning subunit 2d is located above the OCA transfer platform 2c. The OCA hopper 2a stores OCA optical adhesive stacked vertically. The OCA loading robot 2b is used to pick up OCA optical adhesive from the OCA hopper 2a and feed it into the OCA transfer platform 2c. The OCA transfer platform 2c is used to receive OCA optical adhesive from the OCA loading robot 2b and feed it into the bonding unit 3. During the transfer of OCA optical adhesive, when the OCA transfer platform 2c moves the OCA optical adhesive to below the OCA cleaning subunit 2d, the OCA cleaning subunit 2d performs dust removal and cleaning treatment on the OCA optical adhesive loaded on the OCA transfer platform 2c.

[0050] It should be noted that a release liner is usually attached to the bonding surface of the OCA optical adhesive. This release liner needs to be removed in the bonding unit 3 to expose the bonding surface before it is bonded to the glass cover. As described above, the OCA cleaning subunit 2d mainly performs dust removal and cleaning on the surface of the release liner to prevent dust from the release liner from falling onto the bonding surface of the OCA optical adhesive during the subsequent removal process.

[0051] As described above, the OCA feeding unit 2, through the sequential conveying of the OCA hopper 2a, the OCA feeding robot 2b, and the OCA transfer platform 2c, can automatically feed OCA optical adhesive to the bonding unit 3. Furthermore, when the OCA transfer platform 2c moves the OCA optical adhesive below the OCA cleaning sub-unit 2d, the OCA cleaning sub-unit 2d performs dust removal and cleaning treatment on the release protective film on the surface of the OCA optical adhesive, preventing dust from falling onto the bonding surface of the OCA optical adhesive during the subsequent film removal process, and ensuring that the OCA optical adhesive can be firmly bonded to the glass cover in the subsequent bonding process.

[0052] In this embodiment, see Figure 9 and combined Figure 1 and Figure 3As shown, the OCA cleaning subunit 2d includes a dust-adhesive roller assembly 21, which is vertically and flexibly connected above the OCA transfer platform 2c. When the OCA transfer platform 2c moves the OCA optical adhesive below the dust-adhesive roller assembly 21, the dust-adhesive roller assembly 21 presses against the OCA optical adhesive and rolls on its surface, thereby adhering and removing dust from the OCA optical adhesive surface. Furthermore, a dust-adhesive film assembly 22 is also connected to the OCA transfer platform 2c. When the dust-adhesive film assembly 22 moves with the OCA transfer platform 2c below the dust-adhesive roller assembly 21, the dust-adhesive roller assembly 21 presses against the dust-adhesive film assembly 22 and rolls on its surface, transferring dust adhering to the dust-adhesive roller assembly 21 to the dust-adhesive film assembly 22.

[0053] Specifically, the OCA transfer platform 2c includes a linear drive mechanism 23 and a support platform 24. The support platform 24 is movably connected to the linear drive mechanism 23. The adhesive film assembly 22 is fixedly connected to the support platform 24 and moves together with the support platform 24 on the linear drive mechanism 23. The adhesive roller assembly 21 is vertically mounted above the linear drive mechanism 23. The support platform 24 is used to load the OCA optical adhesive fed in by the OCA loading robot 2b, combined with... Figure 9 As shown, the carrier platform 24 first receives OCA optical adhesive at the right end of the linear drive mechanism 23, and then moves the loaded OCA optical adhesive to the left. When it moves to below the sticky roller assembly 21, the sticky roller assembly 21 descends and presses against the surface of the OCA optical adhesive. As the OCA optical adhesive continues to be transported to the left, the sticky roller assembly 21 rolls on the surface of the OCA optical adhesive, thereby adhering to the dust on the surface of the OCA optical adhesive. The carrier platform 24 moves to the left, causing the sticky film assembly 22 to move below the sticky roller assembly 21. At this time, the sticky roller assembly 21 is controlled to roll on the sticky film assembly 22. The adhesion force of the sticky film assembly 22 is set to be greater than that of the sticky roller assembly 21, thereby transferring the dust adhering to the sticky roller assembly 21 to the sticky film assembly 22. That is, the sticky film assembly 22 can be understood as a functional module for cleaning the sticky roller assembly 21.

[0054] In this embodiment, the bonding unit 3 includes a lower bonding platform 31, an upper bonding platform 32, an OCA transfer robot 33, a CG vision alignment component 34, an OCA vision alignment component 35, and an OCA film peeling component 36. The upper bonding platform 32 is located at the first end of the bonding unit 3 and docks with the CG feeding unit 1, specifically with the CG transfer platform 1b of the CG feeding unit 1. The OCA transfer robot 33 is located at the second end of the bonding unit 3 and docks with the OCA feeding unit 2, specifically with the OCA transfer platform 2c of the OCA feeding unit 2. The lower bonding platform 31 extends along a second direction and is configured to reciprocate between the upper bonding platform 32 and the OCA transfer robot 33. The CG visual alignment component 34 is disposed at the first end of the bonding unit 3 and located below the bonding upper platform 32, while the OCA visual alignment component 35 and the OCA film peeling component 36 are disposed in the middle of the bonding unit 3 and mounted above the bonding lower platform 31.

[0055] The OCA transfer robot 33 is used to pick up and transfer the OCA optical adhesive fed from the OCA transfer platform 2c to the lower bonding platform 31. The lower bonding platform 31 is used to load the OCA optical adhesive and transfer it below the upper bonding platform 32. The OCA film-removing assembly 36 is used to remove the release protective film from the OCA optical adhesive on the bonding surface by peeling off the film on the bonding surface. The OCA vision alignment assembly 35 is used to visually position the OCA optical adhesive on the lower bonding platform 31. The upper bonding platform 32 is used to pick up a glass cover from the CG transfer platform 1b and bond the glass cover to the OCA optical adhesive on the lower bonding platform 31, and also to transfer the bonded product to the outside of the automatic bonding device. The CG vision alignment assembly 34 is used to visually position the glass cover picked up on the upper bonding platform 32.

[0056] Specifically, such as Figure 10 As shown, the lower bonding platform 31 includes a first linear drive assembly 311, a UVW platform 312, and a bonding mesh box 313. The first linear drive assembly 311 extends along a second direction and connects between the upper bonding platform 32 and the OCA transfer robot 33. The UVW platform 312 is movably connected to the first linear drive assembly 311, and the bonding mesh box 313 is connected to the UVW platform 312. The OCA visual alignment assembly 35 and the OCA film peeling assembly 36 are disposed in the middle of the bonding unit 3 and mounted above the first linear drive assembly 311.

[0057] Specifically, such as Figure 11As shown, the bonding platform 32 includes a second linear drive assembly 321 and a first gripping assembly 322. The second linear drive assembly 321 is located at the first end of the bonding unit 3 and is mounted above the frame platform 100. The second linear drive assembly 321 extends along a first direction. The first gripping assembly 322 is movably connected to the second linear drive assembly 321 and is configured to grip and move the glass cover plate.

[0058] Specifically, such as Figure 12 As shown, the OCA transfer robot 33 includes a third linear drive assembly 331 and a second gripping assembly 332. The third linear drive assembly 331 is located at the second end of the bonding unit 3 and connected to the frame platform 100. The third linear drive assembly 331 extends along a first direction. The second gripping assembly 332 is movably connected to the third linear drive assembly 331 and is configured to grip and move the OCA optical adhesive.

[0059] The bonding unit 3 described above operates by including the following steps:

[0060] (1) The OCA transfer robot 33 picks up the OCA optical adhesive from the OCA transfer platform 2c and places it on the bonding net box 313 of the bonding lower platform 31.

[0061] (2) The lower bonding platform 31 first moves the loaded OCA optical adhesive toward the upper bonding platform 32 to below the OCA film peeling assembly 36, and the OCA film peeling assembly 36 peels off the release protective film on the bonding surface of the OCA optical adhesive.

[0062] (3) The bonding platform 31 continues to move the OCA optical adhesive below the OCA visual alignment component 35, and the OCA visual alignment component 35 obtains the positioning information of the OCA optical adhesive loaded on the bonding net box 313.

[0063] (4) The bonding platform 32 picks up the glass cover from the CG transfer platform 1b and moves the glass cover above the CG visual alignment component 34, so that the CG visual alignment component 34 can obtain the positioning information of the glass cover picked up on the bonding platform 32.

[0064] (5) The lower bonding platform 31 moves the OCA optical adhesive below the upper bonding platform 32, and the upper bonding platform 32 moves the glass cover above the lower bonding platform 31. Based on the positioning information obtained in steps (3) and (4), the OCA optical adhesive and the glass cover are precisely aligned through the initial adjustment of the first linear drive component 311 and the second linear drive component 321, and through the precise adjustment of the UVW platform 312.

[0065] (6) After precise alignment, the upper bonding platform 32 presses the glass cover down onto the OCA optical adhesive on the lower bonding platform 31. The bonding mesh box 313, which holds the OCA optical adhesive, is equipped with a lifting and rolling mechanism (not shown in the figures). When the upper bonding platform 32 presses down the glass cover, the lifting and rolling mechanism presses the OCA optical adhesive upwards and rolls it, ensuring a tight bond between the OCA optical adhesive and the glass cover.

[0066] (7) The bonding platform 32 picks up the bonding product (the OCA optical adhesive and glass cover after bonding) and transfers the bonding product to the outside of the automatic bonding device for the next operation.

[0067] In summary, the automatic bonding device for OCA optical adhesive and glass cover provided in this embodiment integrates a CG feeding unit for supplying the glass cover, an OCA feeding unit for supplying the OCA optical adhesive, and a bonding unit for bonding the OCA optical adhesive and the glass cover into a single automatic bonding device. Furthermore, the CG feeding unit includes a CG cleaning subunit, and the OCA feeding unit includes an OCA cleaning subunit. From the feeding and dust removal of the glass cover, to the feeding and dust removal of the OCA optical adhesive, and finally to the bonding of the OCA optical adhesive and the glass cover and unloading for the next process, all processes are automated. This improves the bonding efficiency and yield of the OCA optical adhesive and the glass cover, thereby increasing the production efficiency of the LCD screen.

[0068] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. An automatic bonding device for OCA optical adhesive and glass cover plate, characterized in that, The device includes a frame platform and a bonding unit, a CG feeding unit and an OCA feeding unit connected to the frame platform. The bonding unit is disposed at the first end of the frame platform. The CG feeding unit and the OCA feeding unit are disposed at intervals between each other on the frame platform along a second direction and respectively extend from the second end of the frame platform along a first direction to the bonding unit. The CG loading unit includes a CG loading robot and a CG transfer platform, and also includes a CG cleaning subunit disposed below the CG loading robot. The CG loading robot is used to grab and receive glass cover plates from the outside and send the glass cover plates into the CG transfer platform. The CG transfer platform is used to send the glass cover plates into the bonding unit. The CG cleaning subunit is used to perform dust removal and cleaning treatment on the glass cover plates grabbed by the CG loading robot. The OCA loading unit includes an OCA hopper, an OCA loading robot, and an OCA transfer platform, and also includes an OCA cleaning subunit disposed above the OCA transfer platform. The OCA loading robot is used to pick up OCA optical adhesive from the OCA hopper and feed the OCA optical adhesive into the OCA transfer platform, which is used to feed the OCA optical adhesive into the bonding unit. The OCA cleaning subunit is used to perform dust removal and cleaning treatment on the OCA optical adhesive loaded on the OCA transfer platform. The bonding unit includes a lower bonding platform, an upper bonding platform, and an OCA transfer robot. The upper bonding platform is located at the first end of the bonding unit and docks with the CG transfer platform. The OCA transfer robot is located at the second end of the bonding unit and docks with the OCA transfer platform. The lower bonding platform extends along a second direction and is configured to reciprocate between the upper bonding platform and the OCA transfer robot. The OCA transfer robot is used to pick up and transfer the OCA optical adhesive fed from the OCA transfer platform to the lower bonding platform; the lower bonding platform is used to load the OCA optical adhesive and transfer it to the area below the upper bonding platform; the upper bonding platform is used to pick up the glass cover from the CG transfer platform and bond the glass cover to the OCA optical adhesive loaded on the lower bonding platform, and is also used to transfer the bonded product to the outside of the automatic bonding device.

2. The automatic bonding device according to claim 1, characterized in that, The bonding unit further includes a CG visual alignment component, an OCA visual alignment component, and an OCA film-removing component. The CG visual alignment component is disposed at the first end of the bonding unit and located below the upper bonding platform. The OCA visual alignment component and the OCA film-removing component are disposed in the middle of the bonding unit and mounted above the lower bonding platform. The CG visual alignment component is used for visual positioning of the glass cover plate gripped on the upper bonding platform. The OCA film-removing component is used for peeling the OCA optical adhesive loaded on the lower bonding platform. The OCA visual alignment component is used for visual positioning of the OCA optical adhesive loaded on the lower bonding platform.

3. The automatic bonding device according to claim 2, characterized in that, The bonding lower platform includes a first linear drive assembly, a UVW platform, and a bonding mesh box. The first linear drive assembly extends along a second direction and connects between the bonding upper platform and the OCA transfer robot. The UVW platform is movably connected to the first linear drive assembly, and the bonding mesh box is connected to the UVW platform. The OCA vision alignment assembly and the OCA film peeling assembly are disposed in the middle of the bonding unit and mounted above the first linear drive assembly.

4. The automatic bonding device according to claim 2, characterized in that, The bonding platform includes a second linear drive assembly and a first gripping assembly. The second linear drive assembly is located at the first end of the bonding unit and is mounted above the frame platform. The second linear drive assembly extends along a first direction. The first gripping assembly is movably connected to the second linear drive assembly and is configured to grip and move the glass cover plate. The CG vision alignment assembly is located below the second linear drive assembly. The OCA transfer robot includes a third linear drive assembly and a second gripping assembly. The third linear drive assembly is located at the second end of the bonding unit and connected to the frame platform. The third linear drive assembly extends along a first direction. The second gripping assembly is movably connected to the third linear drive assembly and is configured to grip and move the OCA optical adhesive.

5. The automatic bonding device according to claim 1, characterized in that, The CG cleaning subunit includes an unwinding mechanism, a winding mechanism, a roller assembly, a pressing assembly, a cleaning cloth, a first guide roller group, a second guide roller group, and a cleaning agent spraying mechanism; The cleaning cloth is arranged in the unwinding mechanism in the form of a roll. The cleaning cloth is unwound by the unwinding mechanism, connected to the idler assembly through the conduction of the first guide roller group and tensioned above the idler assembly, and then wound back into the winding mechanism through the conduction of the second guide roller group. The top-pressing assembly is vertically and flexibly disposed below the roller assembly, configured to press the cleaning cloth upwards onto the glass cover plate to clean the glass cover plate; the cleaning agent spraying mechanism is disposed below the roller assembly and located on the side of the top-pressing assembly, and is used to spray cleaning agent onto the cleaning cloth.

6. The automatic bonding device according to claim 5, characterized in that, The idler assembly includes a first idler, a second idler, a third idler, and a fourth idler arranged sequentially on a first horizontal plane, and also includes a tension roller located below the first horizontal plane and between the second idler and the third idler. The cleaning cloth released from the unwinding mechanism is sequentially connected to the upper side of the first and second idlers, the lower side of the tension roller, and the upper side of the third and fourth idlers, and then wound back into the winding mechanism. The tension roller is used to adjust the tension of the cleaning cloth so that the cleaning cloth is tautly connected to the first idler, the second idler, the third idler, and the fourth idler. A top-pressing assembly is respectively provided below the first horizontal plane, between the first and second idlers and between the third and fourth idlers.

7. The automatic bonding device according to claim 5, characterized in that, The top-pressing assembly includes a lifting drive module and a top-pressing structural component. The top-pressing structural component is vertically and vertically connected to the output end of the lifting drive module on the side facing the cleaning cloth. The top-pressing structural component is an elongated plate extending along the width direction of the cleaning cloth.

8. The automatic bonding device according to claim 1, characterized in that, The OCA cleaning subunit includes a dust-adhesive roller assembly, which is vertically and vertically connected above the OCA transfer platform. When the OCA transfer platform moves the OCA optical adhesive to below the dust-adhesive roller assembly, the dust-adhesive roller assembly presses against the OCA optical adhesive and rolls on the surface of the OCA optical adhesive, thereby adhering and removing dust from the surface of the OCA optical adhesive. The OCA transfer platform is also connected to a dust-adhesive film assembly. When the dust-adhesive film assembly moves with the OCA transfer platform to below the dust-adhesive roller assembly, the dust-adhesive roller assembly presses against the dust-adhesive film assembly and rolls on the surface of the dust-adhesive film assembly, so that the dust adhering to the dust-adhesive roller assembly is transferred to the dust-adhesive film assembly.

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