Bonding device and bonding method

Abstract

The invention provides a laminating device and a laminating method thereof, and the laminating device comprises a profiling platform which comprises a profiling jig for bearing a target object and a supporting mechanism; the supporting mechanism is arranged on the side, opposite to the profiling face, of the profiling jig and used for supporting the profiling jig. An elastic air bag body is provided with an inflatable internal space; the inflation inlet is formed in the elastic air bag body; the flexible pressing layer semi-wraps the outer surface of the elastic air bag body and is used for directly contacting with the first structure of the target object; the elastic air bag body is inflated with air to drive the flexible pressing layer to apply pressure to the first structure, so that the first structure is attached to a second structure of the target object; the bearing mechanism is located on the side, away from the supporting mechanism, of the profiling jig. The problem of virtual sticking between the curved-surface display panel and the composite adhesive tape is solved to a certain extent, so that the sticking effect between the curved-surface display panel and the composite adhesive tape is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a laminating device and a laminating method. BACKGROUND

[0002] The curved display screen refers to the display screen with side bending formed by laminating the flexible screen and the 3D curved cover plate. The 3D curved cover plate has excellent appearance visual sense and hand touch feeling, and has been pursued by people. When the curved display screen is produced, the laminating device is usually used to laminate the 3D curved cover plate and the flexible screen.

[0003] However, the process performance of the current laminating device needs to be improved. SUMMARY

[0004] Therefore, the embodiments of the present application aim to provide a laminating device and a laminating method to solve the problem of poor lamination between the curved display panel and the curved cover plate to some extent, and improve the lamination effect between the curved display panel and the curved cover plate.

[0005] In order to achieve the above-mentioned purpose, one embodiment of the present application provides a laminating device, comprising: a profiling platform, comprising a profiling jig for carrying a target object and a supporting mechanism; the profiling jig comprises a profiling surface in contact with the target object; the profiling surface comprises at least a first profiling surface and a second profiling surface; the first profiling surface is a planar profiling surface, and the second profiling surface is a curved profiling surface; the supporting mechanism is arranged on the side of the profiling jig opposite to the profiling surface, and is used for supporting the profiling jig; an inflatable air bag, comprising an elastic air bag body and an inflation port; the elastic air bag body has an inflatable internal space; the inflation port is arranged on the elastic air bag body; gas can enter the internal space through the inflation port; a flexible pressing layer, which is semi-wrapped on the outer surface of the elastic air bag body, is used for directly contacting a first structure of the target object; the elastic air bag body is filled with gas, which drives the flexible pressing layer to apply pressure to the first structure, so that the first structure is laminated to a second structure of the target object; a carrying mechanism located on the side of the profiling jig away from the supporting mechanism; used for fixing both ends of the flexible pressing layer.

[0006] In some embodiments, the supporting mechanism comprises a supporting structure and a rotating shaft; the supporting structure is connected with the rotating shaft; the rotating shaft rotates to drive the profiling jig to rotate around its own axis.

[0007] In some embodiments, the laminating device further comprises a control unit; the control unit is connected with the inflatable air bag and the rotating shaft, and is used for cooperatively controlling the air pressure of the inflatable air bag and the rotating action of the profiling platform.

[0008] In some embodiments, the air pressure of the inflatable air bag ranges from 0.1 MPa to 0.5 MPa, and the air pressure is negatively correlated with the radius of curvature of the arc region of the first structure; the arc region corresponds to the curved profiling surface.

[0009] In some embodiments, the bearing mechanism is two rollers; the rollers are used to wind the flexible pressing layer and can drive the flexible pressing layer to move step by step so as to replace the contact area of the flexible pressing layer with the first structure.

[0010] In some embodiments, the flexible pressing layer is a silica gel tape; the thickness of the silica gel tape ranges from 0.5 mm to 2.5 mm; and the material of the elastic air bag body includes silicone rubber, rubber, latex, or sheepskin film.

[0011] In some embodiments, the fitting device includes a control unit and a stepping motor, the control unit is connected with the stepping motor, the stepping motor is connected with the rollers; the control unit controls the stepping motor to drive the rollers to rotate and drive the flexible pressing layer to move step by step in response to a stepping trigger condition; and the stepping trigger condition is that the number of times that the inflatable air bag drives the flexible pressing layer to apply pressure to the target object reaches a preset threshold.

[0012] In some embodiments, the preset threshold ranges from 100 times to 200 times.

[0013] In some embodiments, the step distance of the flexible pressing layer ranges from 5 mm / time to 10 mm / time.

[0014] In some embodiments, the rotation angle of the profiling jig around the axis ranges from -15 degrees to 15 degrees.

[0015] One embodiment of the present application provides a fitting method applied to any of the above-mentioned fitting devices, which includes: fixing the target object on the profiling surface; determining the air pressure of the inflatable air bag according to the radius of curvature of the arc region of the first structure; and filling the inflatable air bag with the gas required for the air pressure to enable the inflatable air bag to drive the flexible pressing layer to apply pressure to the arc region.

[0016] In some embodiments, in the step of driving the inflatable air bag to fill the gas required for the air pressure, the control unit cooperates with the control of the air pressure of the inflatable air bag and the rotation of the profiling platform along its axis.

[0017] The application provides a fitting device, which has the beneficial effects that the fitting device realizes accurate positioning and posture adjustment of a target object through a profiling platform, and realizes self-adaptive application of pressure on a first structure through cooperation of an inflatable air bag and a flexible pressing layer, thereby solving the problem of virtual fitting of a curved display module and a composite adhesive tape to a certain extent and improving the fitting effect between the curved display module and the composite adhesive tape. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly explain the further understanding of the embodiments of the specification, and constitute a part of the specification, the following specific embodiments are used to explain the present specification, but do not constitute the limitation of the embodiments of the specification. For ordinary skilled in the art, without paying creative labor, other drawings can also be obtained according to these drawings.

[0019] Figure 1 A structural schematic diagram of a fitting device provided for an embodiment of the application.

[0020] Figure 2 A structural schematic diagram of a profiling fixture provided for an embodiment of the application.

[0021] Figure 3 A structural schematic diagram of a target object provided for an embodiment of the application.

[0022] Figure 4 A structural schematic diagram of a fitting device provided for an embodiment of the application.

[0023] Figure 5 A structural schematic diagram of a profiling fixture provided for an embodiment of the application.

[0024] Figure 6 A flowchart of a fitting method provided for an embodiment of the application.

[0025] Label explanation:

[0026] 100, fitting device; 110, profiling platform; 111, profiling fixture; 170, profiling surface; 171, first profiling surface; 172, second profiling surface; 112, supporting mechanism; 1121, supporting structure; 1122, rotating shaft; 120, inflatable air bag; 130, flexible pressing layer; 131, silica gel tape; 140, bearing mechanism; 141, roller; 150, control unit; 160, axis;

[0027] 200, target object; 210, first structure; 220, second structure. DETAILED DESCRIPTION

[0028] In the following, the technical solutions in the embodiments of the present specification will be described clearly and completely in conjunction with the drawings in the embodiments of the present specification, so that those skilled in the art can better understand the present application. Obviously, the described embodiments are only part of the embodiments of the present specification, not all. Based on the embodiments in the present specification, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the present application.

[0029] It should be noted that in the present application, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the elements defined by the statement "include" do not exclude the presence of other identical elements in the process, method, article or equipment including the elements.

[0030] The features and implementations of various aspects of the present application will be described in detail below. In addition, the features, structures or characteristics described in the present specification can be combined in any suitable way in one or more implementations.

[0031] The curved display module and the composite tape attachment process usually adopt a roller attachment method. Since the roller itself is a rigid structure and has a large diameter, it is difficult to completely adapt to the arc area with a small radius of curvature, resulting in a virtual attachment phenomenon between the arc area of the curved display module and the composite tape during the attachment process, that is, the composite tape does not completely contact the surface of the curved display module. This virtual attachment problem can further cause the risk of separation of the composite tape from the curved display module, affecting the reliability and service life of the display module. In addition, if a roller with too small a diameter is used to try to improve the attachment effect, it is easy to cause the composite tape to be deformed due to excessive local pressure.

[0032] To solve the above problems, please refer to Figure 1 , Figure 2 and Figure 3An embodiment of the present application provides a fitting device 100, comprising: a profiling platform 110, comprising a profiling jig 111 for carrying a target object 200 and a supporting mechanism 112; the profiling jig 111 comprises a profiling surface 170 in contact with the target object 200; the profiling surface 170 comprises at least a first profiling surface 171 and a second profiling surface 172; the first profiling surface 171 is a planar profiling surface 170, and the second profiling surface 172 is a curved profiling surface 170; the supporting mechanism 112 is arranged on a side of the profiling jig 111 opposite to the profiling surface 170, and is used for supporting the profiling jig 111; an inflatable air bag 120, comprising an elastic air bag body and an inflation port; the elastic air bag body has an inflatable internal space; the inflation port is arranged on the elastic air bag body; gas can enter the internal space through the inflation port; a flexible pressing layer 130, which is semi-wrapped on an outer surface of the elastic air bag body, is used for directly contacting a first structure 210 of the target object 200; the elastic air bag body is inflated with gas, and drives the flexible pressing layer 130 to apply pressure to the first structure 210, so that the first structure 210 is fitted to a second structure 220 of the target object 200; and a carrying mechanism 140, which is arranged on a side of the profiling jig 111 away from the supporting mechanism 112, is used for fixing both ends of the flexible pressing layer 130.

[0033] In the embodiment, the fitting device 100 is an automatic device for precisely and uniformly fitting the first structure 210 on the target object 200 to the second structure 220, and is suitable for target objects 200 with complex surface topography. The fitting device 100 can fit the target object 200 through cooperation of the profiling platform 110, the inflatable air bag 120, the flexible pressing layer 130 and the carrying mechanism 140.

[0034] The profiling platform 110 is a basic structure for carrying the target object 200 and providing matching support. Specifically, the profiling platform 110 comprises the profiling jig 111 and the supporting mechanism 112. The profiling jig 111 has the profiling surface 170 in direct contact with the target object 200, which is customized according to the shape of the target object 200 to ensure that the target object 200 remains stable and deforms minimally during fitting. For example, when the target object 200 is a display module with an arc region, the profiling surface 170 of the profiling jig 111 can accurately match the back profile of the display module, thereby providing uniform support.

[0035] The contoured surface 170 has features that match the shape of the target object 200 to ensure that the target object 200 remains stable during the attachment process. The contoured surface 170 includes at least a first contoured surface 171, which is a flat contoured surface 170 for supporting the flat areas of the target object 200, and a second contoured surface 172, which is a curved contoured surface 170 for adapting to the curved areas of the target object 200 to provide curvature-matching support. The support mechanism 112 is provided on the side of the contoured jig 111 opposite the contoured surface 170 to provide mechanical support to fix the contoured jig 111. The support mechanism 112 has a certain stability and rigidity to prevent deformation or displacement during the attachment process. For example, the support mechanism 112 can be made of a metal frame or a high-strength polymer material.

[0036] The inflatable air bag 120 is a flexible actuating element that can be inflated to expand in volume, which can include an elastic air bag body and an inflation port. The elastic air bag body is made of a gas-tight flexible material and has an internal space that can be inflated. The inflation port is a passage for gas to enter the elastic air bag body, and gas can be injected through an external gas source. Specifically, when gas enters the internal space through the inflation port, the elastic air bag body expands in volume, thereby pushing the external component to generate pressure. For example, the elastic air bag body is in a flat state in the un-inflated state, and as gas is injected, it gradually bulges and expands outward to form a controllable pressure output source.

[0037] The inflation port is an interface provided on the elastic air bag body to connect an external gas source and control the flow of gas into or out of the internal space. For example, the inflation port can integrate a one-way valve structure to prevent backflow of gas and ensure the stability of pressure maintenance. The inflation port can also be connected to a solenoid valve or a proportional pressure regulating valve to achieve precise regulation and automatic control of gas pressure.

[0038] The flexible pressing layer 130 can be a layer of flexible material covering the surface of the elastic air bag body, which is fixed to the outer surface of the elastic air bag body in a semi-wrapped manner to directly contact the first structure 210 of the target object 200. When the elastic air bag body is inflated and expanded, the flexible pressing layer 130 deforms with the elastic air bag body and applies uniform pressure to the first structure 210, allowing it to be attached to the second structure 220.

[0039] The bearing mechanism 140 can be a mechanical structure for fixing and driving the flexible pressing layer 130, located on the side of the contoured jig 111 away from the support mechanism 112. It is used to fix both ends of the flexible pressing layer 130 to ensure that it remains in a tensioned state and can be controlled to move during operation. For example, the bearing mechanism 140 can be a fixed bracket combined with a tension adjusting device, or a rotatable roller 141 structure.

[0040] The target object 200 refers to a workpiece that needs to be subjected to a structure bonding operation. The target object 200 at least includes an arc region. For example, the target object 200 can be a display module, a display device, or the like. The first structure 210 can refer to a component on the target object 200 that needs to be pressed, such as an OCA optical adhesive layer, a curved display panel, a composite adhesive tape, or the like. The second structure 220 refers to a base portion on the target object 200 for receiving the first structure 210, such as a curved cover plate, a display module, or the like. The first structure 210 and the second structure 220 correspond to each other. Specifically, the first structure 210 is a curved display panel, and the corresponding second structure 220 is a curved cover plate. The first structure 210 is a composite adhesive tape, and the corresponding second structure 220 is a display module. In some embodiments, one side of the first structure 210 or the second structure 220 can be provided with an adhesive layer required for bonding. When the bonding device 100 bonds the target object 200, the adhesive layer can be used to bond and fix the first structure 210 and the second structure 220.

[0041] In the present embodiment, the bonding device 100 realizes accurate positioning and posture adjustment of the target object 200 through the profiling platform 110, and realizes self-adaptive application of pressure to the first structure 210 through the cooperation of the inflatable air bag 120 and the flexible pressing layer 130, to a certain extent, solves the problem of virtual bonding of the first structure 210 and the second structure 220, and improves the bonding effect of the target object 200.

[0042] In some embodiments, the bonding device 100 can further include a limiting structure located in a non-contact region of the elastic air bag body and the flexible pressing layer 130, for limiting the expansion degree of the non-contact region of the elastic air bag body and the flexible pressing layer 130, increasing the pressure of the contact region of the elastic air bag body and the flexible pressing layer 130, and improving the bonding effect of the bonding device 100.

[0043] In some embodiments, the first structure 210 can be a curved display module. The curved display module can include a curved display panel, which can be an OLED display panel. The OLED display panel is based on the light-emitting characteristics of organic materials. When current passes through the organic light-emitting layer, electrons and holes recombine, causing the organic molecules to transition from the excited state to the ground state, releasing photons, thereby realizing light emission. Each pixel unit can emit light independently, without the need for a backlight. The OLED display panel has a self-emitting characteristic, so it can achieve extremely high contrast, with the black part completely not emitting light, presenting a pure black color. At the same time, the response speed is fast, and it can display high-speed dynamic pictures very well, and the color performance is also very good. In addition, the OLED display panel can be made very thin, and even can be bent and folded, providing more flexibility for product design, and can be used on a variety of devices. Specifically, for example, high-end smartphones, tablets, televisions, and other devices, wearable devices, vehicle displays, and the like. Of course, it can also be other types of curved display panels.

[0044] In some embodiments, the curved display panel can include a substrate, which can provide a stable physical support for other film layers of the flexible display panel, ensuring that they maintain a fixed position during manufacturing and use. The substrate can be provided with many conductive lines and contact points for connecting different electronic components to realize the conduction of the circuit and signal transmission. For example, in a flexible display panel, the lines on the substrate connect the pixel driving circuit with the power supply, data input port, and the like. In some high-power or high-density electronic devices, the substrate can also be used to help dissipate heat. For example, by embedding heat dissipation channels in the substrate or using high-thermal-conductivity materials, the heat generated by the components during operation can be effectively reduced, improving the stability and life of the device. The substrate is a flexible substrate. Specifically, for example, the substrate can be a PET (polyethylene terephthalate) substrate, a PEN (polyethylene naphthalate) substrate, or a PI (polyimide) substrate, and the like. The flexible substrate has good flexibility and can be bent, folded, or even rolled, making it suitable for flexible display devices, so the display panel can be a flexible display panel.

[0045] In some embodiments, the substrate can include a pixel driving circuit electrically connected to the pixel units for driving the pixel units to emit light. The curved display panel can include a plurality of pixel units, some of which display the same color. Specifically, for example, the pixel units can display red, green, or blue. All pixel units of the curved display panel can display at least two colors. The brightness (gray scale) of each pixel unit can be adjusted, and a variety of colors can be displayed through color combination and superposition, thereby realizing full-color display of the curved display panel.

[0046] In some embodiments, the pixel driving circuit directly determines the performance and display effect of the curved display panel. The pixel driving circuit mainly controls the luminous intensity (for self-luminous display panels such as OLED) or light transmittance (for display panels that need a backlight source such as LCD) of each pixel unit. By precisely controlling the current or voltage, the driving circuit can adjust the brightness and color of the pixel unit, thereby realizing image display. The image signal received by the curved display panel is usually a digital signal, while the pixel unit needs an analog signal to drive the light emission or light transmission. The pixel driving circuit is used to convert the digital signal into an analog signal and amplify it to sufficient intensity to drive the pixel unit. The pixel driving circuit needs to accurately control the timing of the signal to ensure that each pixel unit lights up or turns off at the correct time. This is crucial for achieving high refresh rate and smooth dynamic display.

[0047] In some embodiments, the colors displayed by two adjacent pixel units on the curved display panel can be different. Specifically, for example, one pixel unit can display red, and the other adjacent pixel unit can display green. Of course, one pixel unit can also display green, and the other adjacent pixel unit can display blue. One pixel unit can also display blue, and the other adjacent pixel unit can display red.

[0048] In some embodiments, the curved display panel can determine the arrangement of the pixel units according to the color performance, resolution, brightness uniformity, etc. There are many ways to arrange the pixel units. Specifically, for example, red-green-blue pixel unit arrangement, red-green-blue-white pixel unit arrangement, PenTile pixel arrangement, triangular pixel unit arrangement, etc. Among them, the red-green-blue pixel unit arrangement can mix various colors, with rich and accurate color performance. The red-green-blue-white pixel unit arrangement can improve the brightness and contrast of the curved display panel, while reducing power consumption. The PenTile pixel arrangement can achieve higher pixel density under the same area, improving the resolution of the curved display panel. The triangular pixel unit arrangement can improve the pixel density and color mixing effect.

[0049] The curved display panel can also include an encapsulation layer covering the display functional layer, which provides reliable environmental isolation protection to prevent environmental corrosive substances such as water vapor and oxygen from penetrating into the underlying display functional layer, thereby significantly improving the service life and reliability of the curved display panel.

[0050] The encapsulation layer may include a single-layer structure or a multi-layer composite structure. When the encapsulation layer is a multi-layer composite structure, the encapsulation layer at least includes: at least one inorganic barrier layer, which is made of a dense material. For example, silicon nitride, silicon oxide, silicon oxynitride, aluminum oxide or a high-quality film formed by atomic layer deposition process. The inorganic barrier layer provides the main water and oxygen barrier properties. And at least one organic buffer layer. For example, acrylic resin, epoxy resin, silicon-based resin or polyimide. The organic buffer layer is arranged between adjacent inorganic barrier layers or covered on the outermost inorganic barrier layer. The organic buffer layer is used to cover the particles or pinhole defects that may exist below, provide a flat surface for the subsequent deposition of the inorganic layer, and effectively absorb mechanical stress (such as bending stress) to enhance the overall flexibility and crack resistance of the encapsulation layer. The overall thickness of the encapsulation layer is from several microns to tens of microns. The encapsulation layer can be formed by processes such as chemical vapor deposition, physical vapor deposition, atomic layer deposition, inkjet printing, and slit coating. For curved display panels, the encapsulation layer preferably adopts a multi-layer thin film encapsulation structure with excellent bending resistance. The encapsulation layer has specific optical properties to minimize absorption, reflection or interference of display light.

[0051] The curved display module may further include a touch layer, which is disposed on the curved display panel or integrated into the curved display panel. The touch layer may include at least one touch electrode array for sensing a user's touch or proximity operation on its surface. The touch electrode array may include a plurality of first touch electrodes extending along a first direction and a plurality of second touch electrodes extending along a second direction intersecting the first direction. For example, the first direction may be a row direction, the second direction may be a column direction, or vice versa. These first touch electrodes and second touch electrodes are spatially insulated from each other. For example, they are separated by a dielectric layer and capacitive sensing nodes are formed by a specific pattern design (such as a diamond, strip, grid or other polygon).

[0052] The touch layer further includes leads electrically connected to the first touch electrode and the second touch electrode, which transmit the sensing signal to the touch drive and sensing circuit. Specifically, for example, the touch electrode can be formed of a transparent conductive material (such as indium tin oxide, nanosilver wire, metal grid, graphene or conductive polymer) to maintain the overall light transmittance of the curved display panel. The touch layer may also include a bridging structure (which may be required in a single-layer self-capacitive or mutual-capacitive structure), a shielding electrode layer (for reducing display noise interference) and necessary insulating layers and protective layers. The touch drive circuit determines the position coordinates of the touch event by applying a drive signal to the touch electrode and detecting its capacitance change. For example, the self-capacitance change or the mutual capacitance change.

[0053] See also Figure 4 and Figure 5In some embodiments, the supporting mechanism 112 comprises a supporting structure 1121 and a rotating shaft 1122; the supporting structure 1121 is connected with the rotating shaft 1122; the rotating shaft 1122 rotates to drive the profiling jig 111 to rotate around the axis 160 thereof.

[0054] In the present embodiment, the supporting mechanism 112 can comprise a supporting structure 1121 and a rotating shaft 1122. The supporting structure 1121 is a rigid component for providing mechanical support, and the supporting structure 1121 can be connected with the rotating shaft 1122 through a movable connection, and the rotating shaft 1122 can rotate relative to the supporting structure 1121. The rotating shaft 1122 is a rotatable shaft component, and when the rotating shaft 1122 rotates, it can drive the profiling jig 111 to rotate around the axis 160 thereof, and dynamically adjust the posture of the target object 200 during the lamination process. Specifically, the rotating shaft 1122 rotates to drive the profiling jig 111 to rotate around the axis 160 thereof in a first direction (X) or a second direction (Y), and the first direction and the second direction are opposite. For example, the first direction is the clockwise direction, and the second direction is the counterclockwise direction. Illustratively, the rotating shaft 1122 rotates to drive the profiling jig 111 to rotate around the axis 160 thereof in the first direction to a certain angle, and then rotates in the second direction to a certain angle. Thus, the arc region of the target object 200 is subjected to force in all directions, and the lamination effect is improved. Specifically, the rotating shaft 1122 can be connected with a servo motor, and the servo motor drives the rotating shaft 1122 to rotate.

[0055] In some embodiments, the lamination device 100 can further comprise a first motor for driving the bearing mechanism 140. The curved display panel can comprise two arc regions or four arc regions, and the bearing mechanism 140 can be driven by the first motor to move, thereby driving the flexible pressing layer 130 and the inflatable air bag 120 to move to the position of the corresponding arc region, and then adjusting the air pressure in the inflatable air bag 120 to adapt to the radius of curvature of the corresponding arc region, thereby improving the adaptability of the lamination device 100 to arc regions with different curvatures.

[0056] The lamination device 100 can further comprise a second motor for driving the profiling platform 110 to move, and the profiling platform 110 can be driven by the second motor to move, thereby driving the target object 200 to move, so that the arc region to be laminated moves to the position corresponding to the flexible pressing layer 130 and the inflatable air bag 120, and then adjusting the air pressure in the inflatable air bag 120 to adapt to the radius of curvature of the corresponding arc region, thereby improving the adaptability of the lamination device 100 to arc regions with different curvatures.

[0057] In some embodiments, the lamination device 100 further comprises a control unit 150; the control unit 150 is connected with the inflatable air bag 120 and the rotating shaft 1122, and is used for cooperatively controlling the air pressure of the inflatable air bag 120 and the rotating action of the profiling platform 110.

[0058] In the embodiment, the control unit 150 is an integrated control system, which is connected with the rotating shaft 1122 of the profiling platform 110 and the inflatable air bag 120, and is used for coordinately controlling the pressure change of the inflatable air bag 120 and the rotating action of the profiling jig 111. For example, in the initial stage of the lamination, the control unit 150 first controls the rotating shaft 1122 to rotate in a first direction, so as to drive the profiling platform 110 to slightly tilt in the first direction (for example, by 5 degrees), and then controls the pressure adjusting unit to gradually fill the inflatable air bag 120 with gas, so as to gradually increase the pressure of the inflatable air bag 120, and make the flexible lamination layer 130 start to laminate the target object from one end. Subsequently, the control unit 150 controls the rotating shaft 1122 to rotate in a second direction, so as to drive the profiling platform 110 to tilt in the reverse direction, and simultaneously controls the pressure adjusting unit of the inflatable air bag 120 to release the gas, so as to make the inflatable air bag 120 release the pressure, and complete one cycle. In this way, the bubble residue and the lamination edge lifting phenomenon can be reduced to a certain extent, and the lamination effect can be improved.

[0059] In the embodiment, the coordinative control can refer to that the control unit dynamically matches and uniformly manages the pressure adjusting process of the inflatable air bag 120 and the rotating action of the profiling platform 110 in time sequence and operation parameters, by means of the control logic pre-set in the control unit or the control instruction received from outside.

[0060] Specifically, the control unit 150 can send the pressure control signal to the pressure adjusting unit of the inflatable air bag 120, and simultaneously send the motion control signal to the rotating shaft 1122 of the profiling platform 110, so that the inflation process of the inflatable air bag 120 is synchronized with or performed according to the preset time sequence with the rotating action of the profiling platform 110. For example, in the pressure rising stage of the inflatable air bag 120, the control unit 150 controls the profiling platform 110 to start to slowly rotate, and when the pressure reaches the target value and enters the pressure maintaining stage, the control unit 150 controls the profiling platform 110 to increase the rotating speed, so as to realize the global lamination. Through the coordinative control, the optimized matching of the pressure application and the posture adjustment in time and space is realized, the uniform and continuous pressure applied by the flexible lamination layer 130 to the arc region with complex curvature is effectively ensured, and the problems of the virtual lamination and the bubbles possibly generated in the lamination of the first structure 210 and the second structure 220 are solved, so as to improve the consistency and reliability of the lamination.

[0061] In some embodiments, the pressure of the inflatable air bag ranges from 0.1 MPa to 0.5 MPa, and the pressure is negatively correlated with the curvature radius of the arc region of the first structure 210; the arc region corresponds to the curved profiling surface 170.

[0062] In the embodiment, the air pressure of the inflatable air bag 120 refers to the pressure of the gas inside, which can be in the range of 0.1 MPa to 0.5 MPa. This range is sufficient to achieve effective pressing while avoiding damage to the target object 200 due to excessive pressure. Specifically, the air pressure can be 0.1 MPa, 0.11 MPa, 0.15 MPa, 0.18 MPa, 0.2 MPa, 0.24 MPa, 0.26 MPa, 0.3 MPa, 0.35 MPa, 0.38 MPa, 0.4 MPa, 0.44 MPa, 0.48 MPa, or 0.5 MPa, etc.

[0063] If the air pressure of the inflatable air bag 120 is less than 0.1 MPa, the air pressure of the inflatable air bag 120 is too small to achieve effective pressing. If the air pressure of the inflatable air bag 120 is greater than 0.5 MPa, the sensitive components may be damaged due to excessive pressure.

[0064] The air pressure is negatively correlated with the radius of curvature of the arc region of the first structure 210. The negative correlation means that the smaller the radius of curvature of the arc region, the greater the air pressure required for the inflatable air bag 120 to achieve sufficient adhesion of the first structure 210 and the second structure 220. Conversely, the greater the radius of curvature, the smaller the air pressure required for the inflatable air bag 120. By increasing the air pressure to compensate for the loss of contact area at a small radius of curvature, the problem of false adhesion of the first structure 210 and the second structure 220 is avoided, ensuring that arc regions of different curvatures can obtain sufficient adhesion pressure, and improving the adaptability and adhesion effect of the adhesion device 100. For example, for an arc region with a radius of curvature of R5 mm, the air pressure is set to 0.2 MPa, and for a steeper arc region with a radius of curvature of R2 mm, the air pressure is increased to 0.25 MPa.

[0065] In some embodiments, the bearing mechanism 140 is two rollers 141, which are used to wind the flexible pressing layer 130 and can drive the flexible pressing layer 130 to step move, so as to change the contact area of the flexible pressing layer 130 with the first structure 210.

[0066] In the embodiment, the bearing mechanism 140 is two rollers 141, which can be provided with anti-slip patterns or clamping groove structures on the surface, and are used to wind and fix the flexible pressing layer 130. Specifically, the two rollers 141 fix the two ends of the flexible pressing layer 130, respectively. After the flexible pressing layer 130 contacts the target object 200 a certain number of times, the step motor drives the rollers 141 to rotate, which can drive the axial step movement of the flexible pressing layer 130, so as to ensure that the contact area of the flexible pressing layer 130 with the first structure 210 is constantly updated, avoiding material aging or pollution transfer caused by long-time pressure at the same position.

[0067] In some embodiments, the flexible pressing layer 130 is a silica gel tape 131; the thickness of the silica gel tape 131 ranges from 0.5mm to 2.5mm; the material of the elastic air bag body includes silica rubber, rubber, latex, or sheepskin film.

[0068] In the embodiment, the flexible pressing layer 130 is a silica gel tape 131, and the thickness of the silica gel tape 131 ranges from 0.5mm to 2.5mm, which can ensure sufficient flexibility to adapt to the arc area fitting and sufficient structural strength to withstand repeated pressure without being easily torn. For example, when fitting an arc area with a large curvature, a 1.0mm thick silica gel tape 131 can achieve a good balance between flexibility and durability.

[0069] Specifically, for example, the thickness of the silica gel tape 131 can be 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, or 2.5mm, etc.

[0070] If the thickness of the silica gel tape 131 is less than 0.5mm, the structural strength of the silica gel tape 131 is difficult to withstand repeated pressure and tear. If the thickness of the silica gel tape 131 is greater than 2.5mm, the silica gel tape 131 has low flexibility, which may affect the fitting effect on the arc area and may also cause damage to the target object 200.

[0071] The material of the elastic air bag body can be selected from air-tight flexible materials such as silica rubber, rubber, latex, or sheepskin film, which can maintain stable mechanical properties in multiple inflation and deflation cycles. Specifically, silica rubber has excellent fatigue resistance and deformation recovery ability, and is suitable for high-frequency fitting operations.

[0072] In some embodiments, the fitting device 100 includes a control unit 150 and a stepping motor, the control unit 150 is connected with the stepping motor, the stepping motor is connected with the roller 141; the control unit 150 controls the stepping motor to drive the roller 141 to rotate in response to the stepping trigger condition, and drives the flexible pressing layer 130 to step move; the stepping trigger condition is that the number of times the inflatable air bag 120 drives the flexible pressing layer 130 to apply pressure to the target object 200 reaches a preset threshold.

[0073] In the embodiment, the fitting device 100 can also include a control unit 150 and a stepping motor, the control unit 150 is connected with the stepping motor, the stepping motor is connected with the roller 141, and the control unit 150 can control the stepping motor to start and stop, thereby controlling the roller 141 to rotate and stop. The control unit 150 controls the roller 141 to rotate in response to the stepping trigger condition, and drives the flexible pressing layer 130 to step move.

[0074] Specifically, for example, when the number of times that the inflatable air bag 120 drives the flexible pressing layer 130 to apply pressure to the target object 200 reaches a preset threshold value, the trigger control unit 150 controls the stepping motor to operate, so that the roller 141 rotates to drive the flexible pressing layer 130 to step move. Specifically, the flexible pressing layer 130 moves in the same direction in two adjacent step movements. The service life of the flexible pressing layer 130 is effectively prolonged, and the consistency of the fitting quality is ensured.

[0075] In some embodiments, the step trigger condition can also be that the thickness of the flexible pressing layer 130 is lower than a preset thickness threshold value.

[0076] In some embodiments, the preset threshold value is in the range of 100-200 times.

[0077] In the present embodiment, the preset threshold value is in the range of 100-200 times, which can include the effect of fitting and avoid waste of the flexible pressing layer 130. Specifically, for example, when the number of times that the inflatable air bag 120 drives the flexible pressing layer 130 to apply pressure to the target object 200 reaches 150 times, the roller 141 rotates to drive the flexible pressing layer 130 to step move once. For example, the preset threshold value can be 100 times, 113 times, 115 times, 118 times, 120 times, 126 times, 129 times, 130 times, 132 times, 138 times, 140 times, 144 times, 149 times, 150 times, 153 times, 155 times, 160 times, 164 times, 169 times, 170 times, 171 times, 175 times, 180 times, 182 times, 185 times, 190 times, 191 times, 195 times, 198 times, or 200 times, etc.

[0078] In the case where the preset threshold value is less than 100 times, when the number of times that the inflatable air bag 120 drives the flexible pressing layer 130 to apply pressure to the target object 200 reaches the preset threshold value, the area of the inflatable air bag 120 in contact with the target object 200 is also replaced due to its use performance, which wastes the flexible pressing layer 130, increases the production cost, and increases the number of step movements of the flexible pressing layer 130, which wastes time.

[0079] In the case where the preset threshold value is greater than 200 times, when the number of times that the inflatable air bag 120 drives the flexible pressing layer 130 to apply pressure to the target object 200 has not reached the preset threshold value, the performance of the flexible pressing layer 130 has been reduced and is not suitable for use, which can affect the fitting effect of the target object 200.

[0080] In some embodiments, the step distance of the flexible pressing layer 130 is in the range of 5mm / time-10mm / time.

[0081] In the embodiment, the step distance of the flexible pressing layer 130 can be different according to the arc length of the arc region where the flexible pressing layer 130 contacts the first structure 210. The step distance of the flexible pressing layer 130 can be in the range of 5 mm / step to 10 mm / step. The dynamic updating of the flexible pressing layer 130 can prolong the service life of the flexible pressing layer 130 and maintain the stability of the pressing quality. Specifically, when the number of pressure application reaches 200 times, the control unit 150 sends a command to drive the roller 141 to move the flexible pressing layer 130 by 8 mm.

[0082] Specifically, for example, the distance can be 5 mm / step, 5.5 mm / step, 5.8 mm / step, 6 mm / step, 6.3 mm / step, 6.5 mm / step, 6.8 mm / step, 7 mm / step, 7.5 mm / step, 7.8 mm / step, 8 mm / step, 8.5 mm / step, 8.9 mm / step, 9 mm / step, 9.3 mm / step, 9.5 mm / step, 9.7 mm / step, or 10 mm / step.

[0083] If the step distance of the flexible pressing layer 130 is less than 5 mm / step, the step distance of the flexible pressing layer 130 is less than the arc length of the arc region each time, so that the region of the flexible pressing layer 130 contacting the first structure 210 after each step includes the region that has been used, which to some extent reduces the bonding effect of the first structure 210 and the second structure 220.

[0084] If the step distance of the flexible pressing layer 130 is greater than 10 mm / step, the step distance of the flexible pressing layer 130 is greater than the arc length of the arc region each time, so that there is a part of the region between the two adjacent regions of the flexible pressing layer 130 contacting the first structure 210 that has not been used, which causes waste of the flexible pressing layer 130 and increases the cost.

[0085] In some embodiments, the angle of the contouring jig 111 rotating around the axis 160 can be in the range of -15 degrees to 15 degrees.

[0086] In the embodiment, the rotating shaft 1122 can be driven by a servo motor to realize the accurate swing of the contouring jig 111 in the range of ±15 degrees. Such a small rotation is helpful for dynamically adjusting the posture of the target object 200 during the bonding process, and can be used for progressive bonding of the edge region to improve the bonding effect of the bonding device 100. Specifically, when the contouring jig 111 is in the initial state, the contouring jig 111 is at 0 degree.

[0087] For example, when the profiling jig 111 is in a horizontal position, the profiling jig 111 is at 0 degrees, the profiling jig 111 is rotated from the horizontal position to 15 degrees in a second direction around the self-axis 160 of the profiling jig 111, the profiling jig 111 is rotated 15 degrees around the self-axis 160 of the profiling jig 111, the profiling jig 111 is rotated from the horizontal position to 15 degrees in a first direction around the self-axis 160 of the profiling jig 111, and the profiling jig 111 is rotated -15 degrees around the self-axis 160 of the profiling jig 111.

[0088] Referring to Figure 6 An embodiment of the present application provides a fitting method, the fitting method is applied to any one of the fitting devices 100, and the fitting method comprises the following steps.

[0089] Step S110: fixing the target object 200 on the profiling surface 170.

[0090] In this embodiment, the target object 200 is fixed on the profiling surface 170, and the matching of the profiling jig 111 is used to achieve accurate positioning.

[0091] Step S120: determining the air pressure of the inflatable air bag 120 according to the curvature radius of the arc region of the first structure 210.

[0092] In this embodiment, the air pressure required by the inflatable air bag 120 is determined according to the curvature radius of the arc region of the first structure 210, and the parameters are set according to a negative correlation relationship.

[0093] Step S130: filling the inflatable air bag 120 with gas corresponding to the required amount of gas at the air pressure, so that the inflatable air bag 120 drives the flexible pressing layer 130 to apply pressure to the arc region.

[0094] In this embodiment, the inflatable air bag 120 is filled with gas corresponding to the air pressure, so that it expands and drives the flexible pressing layer 130 to apply pressure to the arc region, and the fitting action is completed. This method realizes intelligent pressure adjustment based on geometric characteristics and improves the fitting yield.

[0095] In some embodiments, in the step of driving the inflatable air bag 120 to fill the gas corresponding to the required amount of gas at the air pressure, the control unit 150 cooperates to control the air pressure of the inflatable air bag 120 and the rotation action of the profiling platform 110 along the self-axis 160.

[0096] In this embodiment, the control unit 150 cooperates to control the air pressure of the inflatable air bag 120 and the rotation action of the profiling platform 110 along the self-axis 160, which means that the time sequence and change amplitude of the two are synchronized during the pressure application process. For example, the profiling platform 110 is started to slowly swing synchronously in the air pressure rising stage, forming a rolling pressing effect, and further improving the fitting flatness and consistency.

[0097] The various embodiments in the present application are focused on the parts different from other embodiments, and can be interpreted in contrast to each other. Any combination of the various embodiments in the present specification is covered by the disclosure of the present specification based on the general technical knowledge of the person skilled in the art.

[0098] Any combination of the technical features of the above embodiments can be made, and for the sake of brevity, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combination of the technical features does not exist, it should be considered within the scope of the disclosure.

[0099] The above is only some of the embodiments in the present specification, and is not intended to limit the present application, and any modification, equivalent replacement, etc. made within the spirit and principle of the present application should be included in the disclosure range of the present application.

Claims

1. A laminating device, characterized in that: include: A profiling platform includes a profiling jig and a support mechanism for carrying a target object; the profiling jig includes a profiling surface in contact with the target object; The profiling surface includes at least a first profiling surface and a second profiling surface; the first profiling surface is a flat profiling surface, and the second profiling surface is a curved profiling surface; the supporting mechanism is provided on the side of the profiling jig opposite to the profiling surface, for supporting the profiling jig; An inflatable airbag comprises an elastic airbag body and an inflation port; the elastic airbag body has an inflatable internal space; the inflation port is provided on the elastic airbag body; gas can enter the internal space through the inflation port; a flexible laminating layer, half wrapped around the outer surface of the elastic airbag body, for directly contacting the first structure of the target object; the elastic airbag body is filled with gas, which drives the flexible laminating layer to apply pressure to the first structure, so that the first structure is adhered to the second structure of the target object; The bearing mechanism is located on a side of the profiling jig away from the supporting mechanism and is used to fix the two ends of the flexible pressing layer.

2. The laminating device according to claim 1, characterized in that: The support mechanism includes a support structure and a rotating shaft; the support structure is connected to the rotating shaft; the rotating shaft rotates to drive the profiling jig to rotate around its own axis.

3. The laminating device according to claim 2, characterized in that: The laminating device further comprises a control unit; the control unit is connected to the inflatable airbag and the rotating shaft, and is used for collaboratively controlling the air pressure of the inflatable airbag and the rotation of the contouring platform.

4. The laminating device according to claim 1, wherein: The air pressure of the inflatable airbag ranges from 0.1 MPa to 0.5 MPa, and the air pressure is negatively correlated with the curvature radius of the arc area of ​​the first structure; the arc area corresponds to the curved contour surface.

5. The laminating device according to claim 1, characterized in that: The bearing mechanism is two rollers; the rollers are used to wind the flexible laminated layer and can drive the flexible laminated layer to move step by step, so as to replace the contact area between the flexible laminated layer and the first structure.

6. The laminating device according to claim 1, characterized in that: The flexible pressed layer is a silicone tape; the thickness of the silicone tape ranges from 0.5 mm to 2.5 mm; the material of the elastic airbag body includes silicone rubber, rubber, latex or sheepskin membrane.

7. The laminating device according to claim 5, characterized in that: The laminating device includes a control unit and a stepper motor, wherein the control unit is connected to the stepper motor, and the stepper motor is connected to the roller; the control unit controls the stepper motor to drive the roller to rotate in response to a step trigger condition, thereby driving the flexible laminating layer to move stepwise; the step trigger condition is that the number of times the inflatable airbag drives the flexible laminating layer to apply pressure to the target object reaches a preset threshold; Preferably, the preset threshold value ranges from 100 times to 200 times; Preferably, the step distance of the flexible pressing layer ranges from 5 mm / time to 10 mm / time.

8. The laminating device according to claim 2, characterized in that: The rotation angle of the profiling fixture around the axis ranges from -15 degrees to 15 degrees.

9. A laminating method, characterized in that: The laminating method is applied to the laminating device according to any one of claims 1 to 8, comprising: fixing the target object on the contoured surface; determining the air pressure of the inflatable airbag according to the curvature radius of the arc region of the first structure; The inflatable airbag is filled with the gas in an amount required to correspond to the air pressure, so that the inflatable airbag drives the flexible pressing layer to apply pressure to the arc area.

10. The laminating method according to claim 9, characterized in that: The step of driving the inflatable airbag to fill with the gas in an amount required to correspond to the gas pressure includes: The control unit coordinates and controls the air pressure of the inflatable airbag and the rotation of the contoured platform along its own axis.

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