Attaching device and attaching method

Abstract

The invention is suitable for the technical field of curved surface display, and provides an attaching device and an attaching method.The attaching device comprises a bearing module, a tensioning profiling module and a rolling attaching module, the bearing module is used for bearing a workpiece to be rubberized, and the tensioning profiling module has the advantages that the position of the tensioning profiling module can be adjusted relative to the bearing module; the tensioning end and the profiling end are used for loading, tensioning and adjusting the posture of the flexible carrier tape; the rolling and attaching module is provided with a rolling and attaching end which is arranged opposite to the bearing module, is located on the side, away from the optical adhesive layer to be attached, of the flexible carrier tape and can move along the profiling contour of the adhesive attaching face so as to attach the optical adhesive layer to be attached to the adhesive attaching face in a rolling and attaching mode; at least one of the profiling end and the tensioning end is configured to adjust the relative position with the bearing module in the rolling and attaching process of the to-be-attached optical adhesive layer so as to change the posture of the to-be-attached carrier tape section between the rolling and attaching end, so that the to-be-attached optical adhesive layer on the to-be-attached carrier tape section is attached to the to-be-attached optical adhesive layer; and the rubberizing surface is avoided before the rolled and attached end is rolled and attached to the rubberizing surface.

Description

Technical Field

[0001] This application belongs to the field of curved display technology, and more specifically, relates to an attachment device and attachment method. Background Technology

[0002] As automotive display technology develops towards larger sizes and curved surfaces, the application of irregularly shaped curved displays is becoming increasingly widespread. To achieve a reliable fit between the display screen and the irregularly shaped curved cover plate, an optical adhesive layer is usually required between the two.

[0003] However, the adhesion reliability and yield of existing optical adhesive layer bonding processes need to be improved. Summary of the Invention

[0004] The purpose of this application is to provide an attachment device and attachment method, which aims to solve the technical problem that the attachment reliability and attachment yield of optical adhesive layer attachment processes in the prior art need to be improved.

[0005] To achieve the above objectives, according to one aspect of this application, an attachment device is provided. The attachment device is used to attach an optical adhesive layer temporarily supported on one side of a flexible carrier tape to the adhesive surface of a workpiece to be adhesively applied. The adhesive surface includes an irregularly shaped curved surface. The attachment device includes: a carrier module, a tensioning and contouring module, and a rolling attachment module. The carrier module is used to carry the workpiece to be adhesively applied. The tensioning and contouring module has a tensioning end and a contouring end that are positionally adjustable relative to the carrier module and used to load, tension, and adjust the posture of the flexible carrier tape. The rolling attachment module... It has a rolling attachment end that is positioned opposite to the carrier module, located on the side of the flexible carrier tape opposite to the optical adhesive layer to be applied, and is movable along the contour of the adhesive surface to roll and attach the optical adhesive layer to the adhesive surface; at least one of the contouring end and the tensioning end is configured to adjust its relative position with the carrier module during the rolling attachment process of the optical adhesive layer to be applied, so as to change the posture of the carrier tape segment to be applied between the carrier tape segment and the rolling attachment end, so that the optical adhesive layer to be applied on the carrier tape segment avoids the adhesive surface before being rolled and attached to the adhesive surface by the rolling attachment end.

[0006] Optionally, the roller-applying end applies the optical adhesive layer to be applied in a direction from the tensioning end to the contouring end. The contouring end is configured to adjust the posture of the carrier tape section to be applied between the roller-applying end and the optical adhesive layer to be applied during the roller-applying process, so that the optical adhesive layer to be applied on the carrier tape section avoids the adhesive surface.

[0007] Optionally, the tension end is configured to, during the roll-applying process of the optical adhesive layer to be applied, adjust the posture of the applied carrier tape section between itself and the roll-applying end so that the applied carrier tape section avoids the applied optical adhesive layer that has been rolled onto the adhesive surface.

[0008] Optionally, the rolling attachment end rolls the optical adhesive layer to be applied along the direction from the conforming end to the tensioning end. The tensioning end is configured to adjust the posture of the carrier tape section to be applied between the rolling attachment end and the optical adhesive layer to be applied during the rolling attachment process, so that the optical adhesive layer to be applied on the carrier tape section avoids the adhesive surface.

[0009] Optionally, the contouring end is configured to, during the roll-applying process of the optical adhesive layer to be applied, adjust the posture of the applied carrier tape section between itself and the roll-applying end so that the applied carrier tape section avoids the applied optical adhesive layer that has been rolled onto the adhesive surface.

[0010] According to another aspect of this application, an attachment method is provided, employing the attachment apparatus as described above. The attachment method includes: discretizing the adhesive surface into a plurality of sequentially arranged contour segments based on the contour data of the adhesive surface; controlling a rolling attachment end to move sequentially along the contour of each contour segment to roll and attach the optical adhesive layer to be attached to the adhesive surface; controlling at least one of the tension end and the contour end to move in coordination with the rolling attachment end to adjust the posture of the carrier tape segment to be attached in real time, so that the optical adhesive layer to be attached avoids the adhesive surface before rolling and attaching.

[0011] Optionally, controlling the rolling attachment end to move sequentially along the contour of each contouring segment includes: controlling the rolling attachment end to move sequentially along the contour of each contouring segment from the tension end to the contouring end.

[0012] Optionally, controlling at least one of the tension end and the contouring end to move in coordination with the rolling attachment end includes: controlling the contouring end to adjust its position relative to the carrier module during the rolling attachment process, so as to adjust the posture of the section of carrier tape to be attached in real time.

[0013] Optionally, the attachment method further includes: controlling the tension end to adjust its position relative to the carrier module during the rolling attachment process, so that the attached carrier tape section avoids the optical adhesive layer that has been attached to the adhesive surface.

[0014] Optionally, the irregular curved surface includes an arc-shaped curved surface segment with an arc profile. Discretizing the adhesive surface into multiple sequentially arranged contour segments based on the contour data of the adhesive surface includes: discretizing the arc-shaped curved surface segment into multiple sequentially arranged circular arc segments based on the contour data of the arc-shaped curved surface segment.

[0015] The beneficial effects of the attachment device provided in this application are as follows: Compared with the prior art, the attachment device provided in this application uses a rolling attachment end that can move along the contour of the adhesive surface of the workpiece to be adhered to attach the optical adhesive layer to the adhesive surface of the workpiece. Through the tension end and the contouring end that can be adjusted in position relative to the carrier module, the posture of the flexible carrier tape section to be adhered to is dynamically adjusted during the contouring attachment process of the optical adhesive layer to be adhered to ensure that the optical adhesive layer to be adhered to the section to be adhered to can actively and accurately avoid the complex contour of the adhesive surface before being rolled and adhered to by the rolling attachment end. This avoids defects such as bubbles, wrinkles, and misalignment caused by premature contact or interference between the optical adhesive layer to be adhered and the adhesive surface on the attachment path, thereby effectively improving the reliability and yield of optical adhesive layer attachment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the attachment device provided in this application embodiment, showing the roller attachment end located near the tension end; Figure 2 A schematic diagram of the structure of the attachment device provided in this application embodiment, wherein the rolling attachment end is located between the tension end and the conforming end; Figure 3 A schematic diagram of the structure of the rolling attachment device provided in this application embodiment, wherein the rolling attachment end is located near the contouring end; Figure 4 A schematic flowchart illustrating the attachment method provided in an embodiment of this application; The details of the reference numerals used in the above figures are as follows: 10. Bearing module; 20. Tensioning and contouring module; 21. Tensioning unit; 211. First linear servo component; 212. Second linear servo component; 213. First tensioning roller assembly; 214. Second tensioning roller assembly; 22. Contouring unit; 221. Third linear servo component; 222. Fourth linear servo component; 223. First cylinder assembly; 224. Contouring roller assembly; 30. Roller bonding module; 31. Fifth linear servo component; 32. Sixth linear servo component; 33. Second cylinder component; 34. Roller roller assembly; 40. Main body of the device; 50. Flexible carrier belt; 60. Workpiece to be glued. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0019] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly or indirectly on that other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to that other element. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0022] As described in the background section, with the development of automotive display technology towards larger sizes and curved surfaces, the application of irregularly shaped curved displays is becoming increasingly widespread. To achieve reliable bonding between the display and the irregularly shaped curved cover plate, an optical adhesive layer is typically required between the two. However, the bonding reliability and yield of existing optical adhesive layer bonding processes need improvement.

[0023] See Figures 1 to 3As shown, to solve the above problems, according to one aspect of this application, an embodiment of this application provides an attachment device for attaching an optical adhesive layer temporarily supported on one side of a flexible carrier tape 50 to the adhesive surface of a workpiece 60 to be adhesiveped. The adhesive surface includes an irregular curved surface. The attachment device includes: a carrier module 10, a tensioning contouring module 20, and a rolling attachment module 30. The carrier module 10 is used to carry the workpiece 60 to be adhesiveped, and the tensioning contouring module 20 has a tensioning end that is positionally adjustable relative to the carrier module 10 for loading, tensioning, and adjusting the posture of the flexible carrier tape 50. The conforming end and the rolling attachment module 30 are arranged opposite to the carrier module 10, located on the side of the flexible carrier tape 50 away from the optical adhesive layer to be applied, and can move along the conforming contour of the adhesive surface to roll and attach the optical adhesive layer to the adhesive surface. At least one of the conforming end and the tensioning end is configured to adjust the relative position with the carrier module 10 during the rolling attachment process of the optical adhesive layer to be applied, so as to change the posture of the carrier tape section to be applied between the rolling attachment end and the carrier tape section to be applied, so that the optical adhesive layer to be applied on the carrier tape section avoids the adhesive surface before being rolled and attached to the adhesive surface by the rolling attachment end. The bonding device provided in this embodiment uses a rolling bonding end that can move along the contour of the bonding surface of the workpiece 60 to bond the optical adhesive layer to be bonded. Through the tensioning end and the contouring end that can be adjusted in position relative to the carrier module 10, the posture of the section of the flexible carrier tape 50 to be bonded is dynamically adjusted during the bonding process. This ensures that the optical adhesive layer to be bonded on the section of the carrier tape can actively and accurately avoid the complex contour of the bonding surface before being rolled and bonded by the rolling bonding end. This avoids defects such as bubbles, wrinkles, and misalignment caused by premature contact or interference between the optical adhesive layer and the bonding surface on the bonding path, thereby effectively improving the reliability and yield of the optical adhesive layer bonding.

[0024] It should be noted that, in this embodiment, the workpiece 60 to be glued refers to an object or component that needs to have an optical adhesive layer attached, and at least one of its surfaces to be processed constitutes the adhesive surface; the adhesive surface refers to the surface on the workpiece 60 to which the optical adhesive layer is to be attached, and the surface includes, but is not limited to, a plane, a curved surface or a combination thereof. An irregular curved surface refers to a non-planar curved area on the adhesive surface that has complex three-dimensional geometric features, and its outline may include arcs, parabolas, spline curves or combinations thereof, such as arc-shaped curved surface segments, undulating curved surfaces, etc. The flexible carrier tape 50 refers to a bendable strip-shaped carrier that temporarily supports the optical adhesive layer to be applied on one side. During the application process, the carrier tape is tensioned and guided to support and position the optical adhesive layer to be applied. The optical adhesive layer to be applied refers to a semi-solid optical adhesive layer that is temporarily attached to one side of the flexible carrier tape 50 and is waiting to be applied to the adhesive surface. It has optical transparency and is used for bonding optical devices, such as flexible displays. The carrier module 10 refers to the component or mechanism in the application device used to fix, support and position the workpiece 60 to be adhesively applied, so as to ensure that its adhesive surface is in a predetermined position during the application process; the tensioning contour module 20 refers to the module in the application device used to install and tension the flexible carrier tape 50 and has a dynamic adjustment function, which includes at least one tensioning end and a contour end arranged opposite to the tensioning end; the rolling application module 30 refers to the module in the application device used to directly perform the application action; the rolling application end refers to the execution component of the rolling application module 30, located on the side of the flexible carrier tape 50 away from the optical adhesive layer to be applied, which is configured to move along the contour of the adhesive surface and press the optical adhesive layer to be applied to the adhesive surface by rolling.

[0025] It is understood that, in this embodiment, the section of carrier tape to be applied refers to the section on the flexible carrier tape 50 that is located between the rolling application end and the tensioning end or the contouring end at any moment during the application process and has not yet been rolled and applied; the contouring profile refers to the motion trajectory planned according to the three-dimensional shape data of the adhesive surface, which the rolling application end follows to ensure that it maintains a relatively stable contact relationship with the curved surface; the cooperative motion refers to the real-time position adjustment movement of the tensioning end and / or the contouring end, which is performed in accordance with the application progress and the shape of the adhesive surface, while the rolling application end moves along the contouring profile during the application process, so that the section of carrier tape to be applied and the optical adhesive layer to be applied on it can avoid each other; the attitude refers to the shape, position and angle state of the flexible carrier tape 50 in three-dimensional space.

[0026] See Figures 1 to 3 As shown, in a specific embodiment, the rolling attachment end rolls the optical adhesive layer to be applied along the direction from the tension end to the contouring end. The contouring end is configured to adjust the posture of the carrier tape section to be applied between the rolling attachment end and the optical adhesive layer during the rolling attachment process, so that the optical adhesive layer on the carrier tape section avoids the adhesive surface. By dynamically adjusting the relative position of the contouring end, the posture of the carrier tape section to be applied between the rolling attachment end and the contouring end can be adjusted in real time, ensuring that the optical adhesive layer to be applied on the carrier tape section can actively and accurately avoid the complex contour of the adhesive surface before being rolled and applied by the rolling attachment end to the adhesive surface. This avoids defects such as bubbles, wrinkles, and misalignment caused by premature contact or interference between the optical adhesive layer to be applied and the adhesive surface on the application path, thereby effectively improving the reliability and yield of optical adhesive layer application.

[0027] See Figures 1 to 3As shown, in one specific embodiment, the tension end is configured to, during the roll-applying process of the optical adhesive layer to be applied, adjust the posture of the already applied carrier tape section between the roll-applying end and the roll-applying end, so that the already applied carrier tape section avoids the already applied optical adhesive layer that has been rolled onto the adhesive surface. It should be noted that, in this embodiment, the already applied carrier tape section refers to the continuous section on the flexible carrier tape 50 located between the roll-applying end and the tension end during the roll-applying process, where the roll-applying process has been completed and the optical adhesive layer to be applied has been transferred to the adhesive surface. By dynamically adjusting the relative position of the tensioning end, the posture of the attached carrier tape section between the rolling attachment end and the tensioning end can be adjusted in real time. This ensures that the attached carrier tape section can actively and accurately avoid the complex contours of the adhesive surface and the optical adhesive layer already attached to the adhesive surface. This prevents secondary contact, scratching, or adhesion between the attached carrier tape section and the attached optical adhesive layer, protects the surface integrity and optical uniformity of the attached optical adhesive layer, reduces the risk of the flexible carrier tape 50 tangling or getting stuck near complex curved surfaces, ensures a continuous and stable attachment process, and improves the reliability and yield of optical adhesive layer attachment.

[0028] In another embodiment, the rolling attachment end rolls the optical adhesive layer to be applied along the direction from the contouring end to the tensioning end. The tensioning end is configured to adjust the posture of the carrier tape section to be applied between the rolling attachment end and the optical adhesive layer during the rolling attachment process, so that the optical adhesive layer on the carrier tape section avoids the adhesive surface. By dynamically adjusting the relative position of the tensioning end, the posture of the carrier tape section to be applied between the rolling attachment end and the tensioning end can be adjusted in real time, ensuring that the optical adhesive layer on the carrier tape section can actively and accurately avoid the complex contour of the adhesive surface before being rolled and applied by the rolling attachment end to the adhesive surface. This avoids defects such as bubbles, wrinkles, and misalignment caused by premature contact or interference between the optical adhesive layer and the adhesive surface on the application path, thereby effectively improving the reliability and yield of optical adhesive layer application.

[0029] In another embodiment, the contouring end is configured to, during the roll-fitting process of the optical adhesive layer to be applied, adjust the orientation of the already-applied carrier tape section between the roll-fitting end and the roll-fitting end, so that the already-applied carrier tape section avoids the already-applied optical adhesive layer that has been rolled onto the adhesive surface. It should be noted that, in this embodiment, the already-applied carrier tape section refers to the continuous section on the flexible carrier tape 50 located between the roll-fitting end and the contouring end during the roll-fitting process, where the roll-fitting has been completed and the optical adhesive layer to be applied has been transferred to the adhesive surface. By dynamically adjusting the relative position of the contouring end, the posture of the attached carrier tape section between the rolling attachment end and the contouring end can be adjusted in real time. This ensures that the attached carrier tape section can actively and accurately avoid the complex contours of the adhesive surface and the optical adhesive layer already attached to the adhesive surface. This prevents secondary contact, scratching, or adhesion between the attached carrier tape section and the attached optical adhesive layer, protects the surface integrity and optical uniformity of the attached optical adhesive layer, reduces the risk of the flexible carrier tape 50 tangling or getting stuck near complex curved surfaces, ensures a continuous and stable attachment process, and improves the reliability and yield of optical adhesive layer attachment.

[0030] See Figures 1 to 3 As shown, in some embodiments, the attachment device in this embodiment includes a device body 40. The support module 10, tension contouring module 20, and rolling attachment module 30 in this embodiment are all installed on the device body 40. The device body 40 refers to the basic structural frame used to integrate and install the support module 10, tension contouring module 20, and rolling attachment module 30. By integrating these modules, the device body 40 optimizes the overall rigidity, spatial layout, and ease of maintenance of the attachment device, and provides a stable reference for the precise coordinated movement between the modules.

[0031] In some embodiments, the carrier module 10 in this embodiment is provided with a carrier surface, through which the carrier module 10 carries the workpiece 60 to be adhesively applied. The carrier surface refers to a contact surface provided on the carrier module 10 that is adapted to the non-adhesive surface of the workpiece 60 to position and support it. The carrier surface provides stable and suitable physical support to the workpiece 60, ensuring the positional accuracy and attitude stability of the workpiece 60 and its adhesive surface throughout the entire application process.

[0032] See Figures 1 to 3 As shown, in some embodiments, the tensioning contouring module 20 in this embodiment includes a tensioning unit 21 and a contouring unit 22. The tensioning unit 21 and the contouring unit 22 are installed at intervals on the main body 40 of the device. The tensioning end is formed in the tensioning unit 21, and the contouring end is formed in the contouring unit 22. The separate and spaced tensioning unit 21 and contouring unit 22 are beneficial to improving the layout flexibility, maintenance convenience, and motion control accuracy of the tensioning contouring module 20.

[0033] See Figures 1 to 3 As shown, in some embodiments, the tensioning unit 21 in this embodiment includes a first linear servo component 211, a torque servo component, and a first tensioning roller assembly 213. The first linear servo component 211 is mounted on the device body 40, the torque servo component is mounted on the output end of the first linear servo component 211, and the first tensioning roller assembly 213 is mounted on the output end of the torque servo component and connected to one end of the flexible carrier belt 50. The first linear servo component 211 is used to drive the torque servo component and the first tensioning roller assembly 213 to adjust their positions along a first direction, and the torque servo component is used to drive the first tensioning roller assembly 213 to rotate to adjust the tension of the flexible carrier belt 50. It should be noted that, in this embodiment, the first linear servo component 211 refers to a servo drive component installed on the main body 40 of the device, used to provide linear displacement output, and its output end is used to connect to and drive downstream components; the torque servo component refers to a servo drive component installed on the output end of the first linear servo component 211, whose core function is to output rotational torque, used to adjust the rotation state of the first tensioning roller assembly 213 connected to it by controlling the torque; the first tensioning roller assembly 213 refers to a roller mechanism installed on the output end of the torque servo component, which is physically connected to one end of the flexible carrier belt 50, and rotates under the drive of the torque servo component to expand or contract or tension the flexible carrier belt 50. In some embodiments, the first direction in this embodiment is parallel to the bearing surface; of course, in other embodiments, the first direction in this embodiment can be adjusted to other directions according to the mechanism layout and process requirements.

[0034] See Figures 1 to 3As shown, in some embodiments, the tensioning unit 21 in this embodiment further includes a second linear servo component 212 and a second tensioning roller assembly 214. The second linear servo component 212 is installed at the output end of the first linear servo component 211, and the second tensioning roller assembly 214 is installed at the output end of the second linear servo component 212 and is located between the first tensioning roller assembly 213 and the rolling attachment, for adjusting the posture of the flexible carrier belt 50 between the second tensioning roller assembly 214 and the rolling attachment. The first linear servo component 211 can drive the second linear servo component 212 and the second tensioning roller assembly 214 to adjust their positions along a first direction, and the second linear servo component 212 is used to drive the second tensioning roller assembly 214 to adjust its positions along a second direction. It should be noted that, in this embodiment, the second linear servo component 212 refers to a servo drive component installed at the output end of the first linear servo component 211, used to provide linear displacement output in a direction independent of the first direction; the second tensioning roller assembly 214 refers to a roller mechanism installed at the output end of the second linear servo component 212, which is disposed on the carrier belt path between the first tensioning roller assembly 213 and the rolling attachment end. Its positional change directly acts on the side of the flexible carrier belt 50 in that section away from the optical adhesive layer to be applied, thereby changing the posture of the flexible carrier belt 50 in that section. This posture adjustment includes, but is not limited to, droop angle, curvature, and wrapping angle. The first tensioning roller assembly 213 and the second tensioning roller assembly 214 constitute the tensioning end of the tensioning contouring module 20. In some embodiments, the torque servo component in this embodiment is installed at the output end of the first linear servo component 211 or at the output end of the second linear servo component 212.

[0035] In some embodiments, the first direction and the second direction in this embodiment are perpendicular to each other, with the first direction parallel to the bearing surface and the second direction perpendicular to the bearing surface. It is understood that the first direction and the second direction in this embodiment specifically refer to two mutually perpendicular spatial movement axes. The first direction is configured to be parallel to the bearing surface to achieve overall positioning adjustment of the first tensioning roller assembly 213 and the second tensioning roller assembly 214 along a direction parallel to the bearing surface; the second direction is configured to be perpendicular to the bearing surface to achieve fine position adjustment of the second tensioning roller assembly 214 in the height direction. Of course, in other embodiments, the spatial relationship between the first direction and the second direction in this embodiment can be adjusted to other directions according to the mechanism layout and process requirements.

[0036] See Figures 1 to 3As shown, in some embodiments, the contouring unit 22 in this embodiment includes a third linear servo component 221, a fourth linear servo component 222, and a contouring roller assembly 224. The third linear servo component 221 is mounted on the main body 40 of the device, the fourth linear servo component 222 is mounted on the output end of the third linear servo component 221, and the contouring roller assembly 224 is mounted on the output end of the fourth linear servo component 222 and connected to the other end of the flexible carrier belt 50. It is used to adjust the posture of the flexible carrier belt 50 between the contouring roller assembly 224 and the rolling attachment. The third linear servo component 221 is used to drive the fourth linear servo component 222 and the contouring roller assembly 224 to adjust their positions along a first direction, and the fourth linear servo component 222 is used to drive the contouring roller assembly 224 to adjust its positions along a second direction. It should be noted that, in this embodiment, the third linear servo component 221 refers to a servo drive component installed on the main body 40 of the device for providing linear displacement output, and its output end is used to connect to and drive downstream components; the fourth linear servo component 222 refers to a servo drive component installed on the output end of the third linear servo component 221 for providing linear displacement output in a direction independent of the first direction; the contouring roller assembly 224 refers to a roller mechanism installed on the output end of the fourth linear servo component 222, which is physically connected to the other end of the flexible carrier belt 50. By changing its position, it directly changes the posture of the flexible carrier belt 50 in the carrier belt section between the contouring roller assembly 224 and the rolling attachment end. This posture adjustment includes, but is not limited to, the droop angle, curvature, and wrapping angle. Among them, the contouring roller assembly 224 constitutes the contouring end of the tensioning contouring module 20.

[0037] See Figures 1 to 3 As shown, in some embodiments, the contouring unit 22 in this embodiment further includes a first cylinder assembly 223. The first cylinder assembly 223 is installed at the output end of the third linear servo assembly 221, and the fourth linear servo assembly 222 is installed at the output end of the first cylinder assembly 223. The third linear servo assembly 221 can drive the first cylinder assembly 223, the fourth linear servo assembly 222, and the contouring roller assembly 224 to adjust their positions along the first direction. The first cylinder assembly 223 is used to drive the fourth linear servo assembly 222 and the contouring roller assembly 224 to adjust their positions along the first direction, so that the flexible carrier belt 50 is kept taut. It should be noted that, in this embodiment, the first cylinder assembly 223 refers to the linear drive component installed at the output end of the third linear servo assembly 221, which provides thrust or pull output in a pneumatic manner. Under the drive of the first cylinder assembly 223, the real-time position of the fourth linear servo assembly 222 and the contour roller assembly 224 during the application process can be adjusted, actively compensating for the slight change in the path length of the flexible carrier tape 50 caused by the change in the contour of the adhesive surface, thereby ensuring that the flexible carrier tape 50 remains taut in the section between the contour roller assembly 224 and the rolling application end.

[0038] See Figures 1 to 3 As shown, in some embodiments, the roller bonding module 30 in this embodiment includes a fifth linear servo component 31, a sixth linear servo component 32, and a roller assembly 34. The fifth linear servo component 31 is mounted on the main body 40 of the device, the sixth linear servo component 32 is mounted on the output end of the fifth linear servo component 31, and the roller assembly 34 is mounted on the output end of the sixth linear servo component 32 and is located on the side of the flexible carrier belt 50 opposite to the optical adhesive layer to be bonded, for rolling and bonding the optical adhesive layer to be bonded to the bonding surface. The fifth linear servo component 31 is used to drive the sixth linear servo component 32 and the roller assembly 34 to adjust their positions along a first direction, and the sixth linear servo component 32 is used to drive the roller assembly 34 to adjust its positions along a second direction. It should be noted that, in this embodiment, the fifth linear servo component 31 refers to a servo drive component installed on the main body 40 of the device for providing linear displacement output, and its output end is used to connect to and drive downstream components; the sixth linear servo component 32 refers to a servo drive component installed on the output end of the fifth linear servo component 31 for providing linear displacement output in a direction independent of the first direction; the rolling roller assembly 34 refers to a roller mechanism installed on the output end of the sixth linear servo component 32, which can abut against the side of the flexible carrier belt 50 opposite to the optical adhesive layer to be applied, and move along the contour of the adhesive surface under the drive of the fifth linear servo component 31 and the sixth linear servo component 32, so as to roll and attach the optical adhesive layer to be applied to the rolling and attaching end of the adhesive surface. Among them, the rolling roller assembly 34 constitutes the rolling and attaching end of the rolling and attaching module 30.

[0039] In some embodiments, the roller bonding module 30 in this embodiment further includes a second cylinder assembly 33, which is mounted on the output end of the sixth linear servo assembly 32. A roller bearing assembly 34 is mounted on the output end of the second cylinder assembly 33. The second cylinder assembly 33 drives the roller bearing assembly 34 to adjust its position along a second direction, thereby applying uniform pressure to the flexible carrier belt 50. In this embodiment, the second cylinder assembly 33 refers to a linear drive component mounted on the output end of the sixth linear servo assembly 32. It provides controllable thrust output pneumatically, for example, by controlling the bonding pressure output by the second cylinder assembly 33 through a proportional valve to maintain a preset value, thus ensuring that the roller bearing assembly 34 can provide stable bonding pressure to the flexible carrier belt 50. In some embodiments, the preset value in this embodiment is greater than or equal to 10N and less than or equal to 30N; for example, it can be 10N, 15N, 20N, 25N, 30N, etc.

[0040] See Figure 4As shown, according to another aspect of this application, an attachment method is provided, employing the attachment device as described above. The attachment method includes: S101, discretizing the adhesive surface into a plurality of sequentially arranged contour segments based on the contour data of the adhesive surface; S103, controlling the rolling attachment end to move sequentially along the contour of each contour segment to roll and attach the optical adhesive layer to be attached to the adhesive surface; S105, controlling at least one of the tension end and the contour end to move in coordination with the rolling attachment end to adjust the posture of the carrier tape segment to be attached in real time, so that the optical adhesive layer to be attached avoids the adhesive surface before rolling and attaching. It should be noted that, in this embodiment, the contouring segment refers to a number of continuous and boundary-connected local curved surface units generated by a geometric segmentation algorithm based on the three-dimensional contour data of the adhesive surface. Each contouring segment corresponds to a path unit that the rolling end can continuously perform rolling operations. Its contour accuracy determines the degree of fitting between the bonding trajectory and the theoretical curved surface. Contouring movement refers to the continuous movement of the rolling end following the preset spatial trajectory of the current contouring segment under the drive of the fifth linear servo component 31, the sixth linear servo component 32 and the second cylinder component 33. Through this contouring movement, uniform and constant pressure bonding of the optical adhesive layer to be bonded to the adhesive surface can be achieved. Coordinated movement between at least one of the tensioning end and the contouring end and the rolling end refers to the synchronous and coupled position adjustment movement of the tensioning end and / or the contouring end according to the real-time bonding progress, the geometric characteristics of the current contouring segment and the carrier tape tension feedback while the rolling end is performing contouring movement. Through this coordinated movement, it can be ensured that the spatial shape of the carrier tape section to be bonded always meets the avoidance requirements. The bonding method provided in this embodiment discretizes the continuous irregular curved surface into multiple continuous contouring segments that can perform contouring movements, and combines the dynamic collaborative control of the rolling bonding end, the tensioning end, and the contouring end to achieve high-precision adaptive bonding of complex curved surfaces. While the rolling bonding end moves along the contouring trajectory, the real-time closed-loop adjustment of the carrier tape posture by at least one of the tensioning end and the contouring end ensures that the optical adhesive layer to be bonded always maintains a non-interference state with the adhesive surface before being bonded by the rolling bonding end, thereby completely eliminating process defects such as wrinkles, bubbles, and positioning offsets caused by premature contact.

[0041] In one specific embodiment, controlling the rolling attachment end to sequentially move along the contour of each contouring segment includes: controlling the rolling attachment end to move sequentially along the contour of each contouring segment from the tension end to the contouring end. It should be noted that the attachment direction from the tension end to the contouring end is defined in this embodiment as the overall traveling trend of the rolling attachment end. This configuration places the attachment starting point of the optical adhesive layer to be attached on the side closer to the tension end, and the attachment ending point on the side closer to the contouring end. In this direction, the contouring end is preferentially configured to undertake the main attitude avoidance adjustment function, controlling the attitude of the carrier tape segment to be attached by adjusting its own position in real time to adapt to the changes in the curved contour unfolding along this direction.

[0042] In one specific embodiment, controlling at least one of the tensioning end and the contouring end to move in coordination with the rolling and attaching end includes: controlling the contouring end to adjust its position relative to the carrier module 10 during the rolling and attaching process to adjust the posture of the carrier tape segment to be attached in real time. It should be noted that, in this embodiment, controlling the contouring end to adjust its position relative to the carrier module 10 during the rolling and attaching process refers to performing closed-loop position control of the contouring end in sync with the attaching process based on the instantaneous position of the rolling and attaching end, the contour features of the current contouring segment, and preset clearance data. This adjustment is driven by the third linear servo component 221 and the fourth linear servo component 222, changing the spatial coordinates of the contouring roller assembly 224 so that the posture of the carrier tape segment to be attached is pre-adapted to the local curvature and undulations of the adhesive surface before the rolling and attaching end arrives, thereby achieving clearance control during the attaching process.

[0043] In one specific embodiment, the attachment method further includes: controlling the tensioning end to adjust its position relative to the carrier module 10 during the rolling attachment process, so that the attached carrier tape section avoids the optical adhesive layer already attached to the adhesive surface. It should be noted that, in this embodiment, controlling the tensioning end to adjust its position relative to the carrier module 10 during the rolling attachment process refers to performing closed-loop position control of the tensioning end synchronously with the attachment process based on the instantaneous position of the rolling attachment end, the boundary of the area where the optical adhesive layer has been attached, and preset safety peel gap data. This adjustment is driven by the first linear servo component 211 and the second linear servo component 212, changing the spatial coordinates of the second tensioning roller assembly 214, or the first tensioning roller assembly 213 and the second tensioning roller assembly 214, thereby actively guiding the peel path of the attached carrier tape section, maintaining a safe distance between it and the attached optical adhesive layer, thus achieving avoidance control after attachment and preventing secondary contact.

[0044] In one specific embodiment, the irregular curved surface includes an arc-shaped surface segment with an arc-shaped contour line. Discretizing the adhesive surface into multiple sequentially arranged contour segments based on the contour data of the adhesive surface includes: discretizing the arc-shaped surface segment into multiple sequentially arranged circular arc segments based on the contour data of the arc-shaped surface segment. It should be noted that the arc-shaped surface segment in this embodiment specifically refers to a continuous local curved surface region in the irregular curved surface whose two-dimensional projection contour line or three-dimensional cross-sectional line conforms to the geometric characteristics of an arc; the circular arc segment refers to a number of connected planar circular arcs or spatial circular arc path units generated by fitting, segmenting and simplifying the contour data of the arc-shaped surface segment. Each circular arc segment has a definite radius of curvature, central angle and endpoint coordinates, which together approximate the original geometric shape of the arc-shaped surface segment.

[0045] In some embodiments, controlling the contour-following movement of the rolling attachment end along each contouring segment in this embodiment includes: dividing each contouring segment into one or more attachment motion segments; each attachment motion segment includes at least one bonding key point and at least one contouring key point, wherein the bonding key point corresponds to a predetermined pressing position of the rolling attachment end on the adhesive surface, the predetermined pressing position having a preset pressing amount, and the contouring key point corresponds to a predetermined spatial position of the contouring end or tensioning end at a corresponding moment, the predetermined spatial position ensuring that the corresponding segment of the carrier tape avoids the adhesive surface; controlling at least one of the tensioning end and the contouring end to move in coordination with the rolling attachment end includes: controlling the bonding key point and the corresponding contouring key point to reach their respective target positions at the same moment. For example, based on the travel distance of the rolling attachment end from the previous bonding key point to the current bonding key point and a preset feed speed, the required movement time is calculated; based on the movement time and the travel distance of the contouring end from the previous contouring key point to the current contouring key point, the moving speed of the contouring end or tensioning end is dynamically calculated and set so that its movement time is consistent with that of the rolling attachment end. In some embodiments, when the attachment motion is segmented into an arc path, an interpolation algorithm is used to generate the first and second direction motion trajectories of the rolling attachment end in real time based on the coordinates of the key bonding points and the arc radius. The moving speed of the contouring end or tensioning end is dynamically calculated and set to ensure its movement time is consistent with that of the rolling attachment end, thus ensuring that both remain positionally synchronized during the arc interpolation process. It is understood that the above speed matching and control logic can be implemented using a programmable logic controller, motion control card, or industrial computer. When using a programmable logic controller (PLC) for speed matching and control logic, the circular interpolation function within the PLC can be directly employed to achieve circular path movement control. For example, given the current keypoint coordinates X1, Z1, the next keypoint coordinates X2, Z2, radius R, and the deviation discriminant F = X² + Z² - R², during the circular interpolation process, the deviation discriminant F is updated for each step unit moved along the X or Z direction. For instance, moving one step unit along the -X direction updates it to Fnew = Fold - 2x + 1; moving one step unit along the +Z direction updates it to Fnew = Fold + 2z + 1. This iterative calculation determines the next movement direction in real time to approximate the target circular trajectory. Here, X is the first direction, Z is the second direction, x is the cumulative number of steps in the first direction compared to the initial position, and z is the cumulative number of steps in the second direction compared to the initial position.

[0046] In summary, implementing the attachment device and method provided in this embodiment has at least the following beneficial technical effects: The attachment device provided in this embodiment uses a rolling attachment end that can move along the contour of the adhesive surface of the workpiece 60 to attach the optical adhesive layer to the adhesive surface. Through the tension end and the contouring end that can be adjusted in position relative to the carrier module 10, the posture of the section of the flexible carrier tape 50 to be attached is dynamically adjusted during the contour attachment process. This ensures that the optical adhesive layer to be attached on the section of the carrier tape can actively and accurately avoid the complex contour of the adhesive surface before being rolled and attached by the rolling attachment end. This avoids defects such as bubbles, wrinkles, and misalignment caused by premature contact or interference between the optical adhesive layer to be attached and the adhesive surface on the attachment path, thereby effectively improving the reliability and yield of the optical adhesive layer attachment.

[0047] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An attachment device, characterized in that, For attaching an optical adhesive layer temporarily supported on one side of a flexible carrier tape (50) to an adhesive surface of a workpiece (60) to be adhesiveped, the adhesive surface including an irregular curved surface, the attachment device comprising: The carrier module (10) and the tensioning contouring module (20) are used to carry the workpiece (60) to be glued. The tensioning contouring module (20) has a tensioning end and a contouring end that can be adjusted relative to the carrier module (10) for loading, tensioning and adjusting the posture of the flexible carrier belt (50). Roller attachment module (30) has a side opposite to the carrier module (10) on the flexible carrier tape (50) away from the optical adhesive layer to be attached, and can move along the contour of the adhesive surface to roll the optical adhesive layer to be attached to the roller attachment end of the adhesive surface. At least one of the conforming end and the tensioning end is configured to adjust its relative position with the carrier module (10) during the rolling application of the optical adhesive layer to be applied, so as to change the posture of the carrier tape section to be applied between the carrier tape section to be applied and the rolling application end, so that the optical adhesive layer to be applied on the carrier tape section to be applied avoids the adhesive surface before being rolled and applied to the adhesive surface by the rolling application end.

2. The attachment device according to claim 1, characterized in that, The rolling attachment end rolls and attaches the optical adhesive layer to be applied along the direction from the tension end to the contouring end. The contouring end is configured to adjust the posture of the carrier tape section to be applied between itself and the rolling attachment end during the rolling and attaching process, so that the optical adhesive layer to be applied on the carrier tape section avoids the adhesive surface.

3. The attachment device according to claim 2, characterized in that, The tensioning end is configured to, during the rolling application of the optical adhesive layer to be applied, adjust the posture of the applied carrier tape section between itself and the rolling application end, so that the applied carrier tape section avoids the applied optical adhesive layer that has been rolled onto the adhesive surface.

4. The attachment device according to claim 1, characterized in that, The rolling attachment end rolls and attaches the optical adhesive layer to be applied along the direction from the conforming end to the tensioning end. The tensioning end is configured to adjust the posture of the carrier tape section to be applied between itself and the rolling attachment end during the rolling and attaching process, so that the optical adhesive layer to be applied on the carrier tape section avoids the adhesive surface.

5. The attachment device according to claim 4, characterized in that, The contouring end is configured to, during the rolling application of the optical adhesive layer to be applied, adjust the posture of the applied carrier tape section between itself and the rolling application end, so that the applied carrier tape section avoids the applied optical adhesive layer that has been rolled onto the adhesive surface.

6. An attachment method, characterized in that, The attachment method, employing the attachment apparatus as described in any one of claims 1 to 5, comprises: Based on the contour data of the adhesive surface, the adhesive surface is discretized into a plurality of sequentially arranged contour segments; The roller-applying end is controlled to move sequentially along the contour of each of the contouring segments to roll and apply the optical adhesive layer to the adhesive surface. Control at least one of the tensioning end and the contouring end to move in coordination with the rolling and attaching end to adjust the posture of the carrier tape section to be attached in real time, so that the optical adhesive layer to be attached avoids the adhesive surface before rolling and attaching.

7. The attachment method according to claim 6, characterized in that, The control of the rolling attachment end to move sequentially along the contour of each of the contouring segments includes: The rolling attachment end is controlled to move sequentially along the contour of each of the contouring segments from the tensioning end to the contouring end.

8. The attachment method according to claim 7, characterized in that, The control of at least one of the tensioning end and the conforming end to move in coordination with the rolling attachment end includes: The contouring end is controlled to adjust its position relative to the carrier module (10) during the rolling and attaching process, so as to adjust the posture of the carrier tape section to be attached in real time.

9. The attachment method according to claim 8, characterized in that, The attachment method further includes: During the rolling and attaching process, the tensioning end is controlled to adjust its position relative to the carrier module (10) so that the attached carrier tape section avoids the optical adhesive layer that has been attached to the adhesive surface.

10. The attachment method according to any one of claims 6 to 9, characterized in that, The irregular curved surface includes an arc-shaped curved surface segment with an arc contour line, and the step of discretizing the adhesive surface into a plurality of sequentially arranged contour segments based on the contour data of the adhesive surface includes: Based on the contour data of the arc-shaped surface segment, the arc-shaped surface segment is discretized into multiple sequentially arranged circular arc segments.

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