Laminating equipment and film laminating method

Abstract

The present application provides a laminating device and a film laminating method, wherein the laminating device includes: a scanning unit for acquiring shape parameters of a first film to be laminated; a control unit connected to the scanning unit and configured to generate control instructions based on the shape parameters; and a roller unit connected to the control unit for pressing a second film to be laminated along the shape of the first film to be laminated according to the control instructions, so as to laminate the second film to be laminated with the first film to be laminated. The laminating device and film laminating method provided in the present application automatically acquire the shape parameters of the first film to be laminated through the scanning unit, thereby eliminating the need for manual input and selection of debugging programs. At the same time, since the first film to be laminated has been fixed when the scanning unit is working, the shape parameters acquired by the scanning unit correspond to the actual shape of the first film to be laminated during the laminating process. Therefore, the present application has relatively low requirements for product consistency and fixed position accuracy of the first film to be laminated.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a bonding device and a film bonding method. Background Art

[0002] Because flexible OLED display products can achieve special-shaped displays, they are increasingly being used in special-shaped automotive displays. Flexible OLED display products include a cover plate (CG), a heat dissipation film (SCF), and a protective film (PF). During the flexible OLED display product manufacturing process, the heat dissipation film and protective film need to be attached to the cover plate separately. Summary of the Invention

[0003] In view of this, the purpose of this application is to provide a laminating device and a film laminating method.

[0004] Based on the above-mentioned purpose, the present application provides a bonding device, including: a scanning unit for obtaining the shape parameters of the first film material to be bonded; a control unit connected to the scanning unit, for generating control instructions based on the shape parameters; a roller unit, arranged on the side of the second film material to be bonded away from the first film material to be bonded, and connected to the control unit, for pressing the second film material to be bonded along the shape of the first film material to be bonded according to the control instructions, so that the second film material to be bonded is bonded to the first film material to be bonded.

[0005] Optionally, the scanning unit includes a rangefinder facing the first film material to be bonded, and a scanning drive device that drives the rangefinder to move along a first direction; the rangefinder is used to obtain the projected distance between multiple detection points of the first film material to be bonded and the rangefinder during the movement as the shape parameter; wherein, the first direction is the direction from the bonding starting position to the bonding ending position.

[0006] Optionally, three rangefinders are provided and are evenly distributed along a second direction perpendicular to the first direction.

[0007] Optionally, the control unit is further configured to determine positions of corresponding detection points according to the plurality of distances and to form a contour curve matching the shape of the first film to be bonded; and the control instruction is generated according to the contour curve.

[0008] Optionally, the roller unit includes a roller for pressing the second film to be bonded and a roller driving device rotatably connected to the roller; the control instruction includes a roller control instruction, and the roller driving device is used to drive the roller to move according to the roller control instruction.

[0009] Optionally, the bonding equipment also includes: an upper base unit, which is spaced apart on one side of the roller unit close to the bonding termination position, and includes an upper positioning surface for positioning the second film material to be bonded; the upper base unit is connected to the control unit; the control instruction includes an upper base control instruction, and the upper base unit is used to move along the first direction according to the upper base control instruction, and during the movement, the second film material to be bonded can be moved out from the upper positioning surface and pressed and bonded to the first film material to be bonded by the roller unit.

[0010] Optionally, the upper base unit includes a supporting plate provided with an upper positioning surface, a first driving device rotatably connected to one side of the supporting plate along a first direction, and a second driving device rotatably connected to the other side of the supporting plate; the upper base control instruction includes a first upper base instruction and a second upper base instruction, the first driving device drives the supporting plate closer to or away from the first film material to be bonded according to the first upper base instruction, and the second driving device drives the supporting plate closer to or away from the first film material to be bonded according to the second upper base instruction, so that the supporting plate maintains a preset relative position with the first film material to be bonded during the movement along the first direction.

[0011] Optionally, the first film material to be bonded protrudes toward the second film material to be bonded, and the preset relative position between the supporting plate and the first film material to be bonded is: the straight line where the edge of the upper positioning surface is close to the bonding starting position, and the straight line where the roller unit presses the second film material to be bonded, and the same plane where the two straight lines are located is tangent to the first film material to be bonded.

[0012] Optionally, the bonding equipment also includes: a lower base unit, including a base and a fixing jig arranged above the base, and an elastic support structure is evenly distributed between the base and the fixing jig; the fixing jig includes a contoured surface for fixing the first film material to be bonded, and the contoured surface matches the shape of the first film material to be bonded.

[0013] Based on the same inventive concept, the present application also provides a film material laminating method, using the laminating device, the method comprising:

[0014] The scanning unit obtains shape parameters of the first film material to be bonded;

[0015] The control unit generates a control instruction according to the shape parameters;

[0016] The roller unit presses the second film to be laminated along the shape of the first film to be laminated according to the control instruction, so that the second film to be laminated is laminated to the first film to be laminated.

[0017] From the above description, it can be seen that the bonding equipment and film bonding method provided by the present application automatically obtain the shape parameters of the first film material to be bonded through the scanning unit, which can not only save the process of manual input and selection of debugging programs, but also, because the first film material to be bonded has been fixed when the scanning unit is working, the shape parameters obtained by the scanning unit correspond to the actual shape of the first film material to be bonded during the bonding process. Therefore, the present application has relatively low requirements for product consistency and fixed position accuracy of the first film material to be bonded. The present application also generates control instructions through the control unit to control the roller unit to move along the shape of the first film material to be bonded from the bonding starting position to the bonding ending position, while pressing the second film material to be bonded downward so that it gradually bonds with the first film material to be bonded, and ensures that the pressing force on the second film material to be bonded is uniform during the bonding process to ensure the bonding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in this application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are merely embodiments of this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 A schematic diagram of a bonding device according to an embodiment of the present application;

[0020] Figure 2 A schematic diagram of a bonding device from another perspective according to an embodiment of the present application;

[0021] Figure 3a Schematic diagram of the first C-type film to be bonded;

[0022] Figure 3b Schematic diagram of the first L-shaped film to be bonded;

[0023] Figure 3c Schematic diagram of the first S-shaped film to be bonded;

[0024] Figure 4 A schematic diagram of a scanning unit of a laminating device according to an embodiment of the present application;

[0025] Figure 5 A schematic diagram of a roller unit of a laminating device according to an embodiment of the present application;

[0026] Figure 6 A schematic diagram of an upper base unit of a bonding device according to an embodiment of the present application;

[0027] Figure 7 Schematic diagram of a roller unit and an upper base unit of a laminating device according to an embodiment of the present application;

[0028] Figure 8 A schematic diagram of a lower base unit of a bonding device according to an embodiment of the present application;

[0029] Figure 9 A schematic diagram of removing the base from the lower base unit of the bonding device according to an embodiment of the present application;

[0030] Figure 10 A schematic diagram of a bonding device according to an embodiment of the present application in a work preparation stage;

[0031] Figure 11 A schematic diagram of a scanning unit of a laminating device according to an embodiment of the present application during a scanning phase;

[0032] Figure 12 A schematic diagram of a control unit of a laminating device according to an embodiment of the present application generating a control instruction according to shape parameters;

[0033] Figure 13 This is a schematic diagram of the laminating equipment according to an embodiment of the present application laminating a first film material to be laminated and a second film material to be laminated;

[0034] Figure 14 A schematic diagram of the motion trajectory of the fitting roller unit of the laminating device according to an embodiment of the present application;

[0035] Figure 15 A schematic diagram of determining the motion trajectory of the upper base unit of the laminating device according to an embodiment of the present application;

[0036] Figure 16 Schematic diagram of the process of the film lamination method according to an embodiment of the present application.

[0037] Description of reference numerals:

[0038] 1. Scanning unit; 11. Rangefinder; 12. Scanning drive device; 13. Shape parameters;

[0039] 2. Control unit; 21. Roller control command; 22. Base station control command; 221. First base station command; 222. Second base station command;

[0040] 3. Roller unit; 31. Roller; 32. Roller driving device;

[0041] 4. First film to be laminated; 5. Second film to be laminated; 6. Slide rail;

[0042] 7. Upper base unit; 71. Carrying plate; 711. Upper positioning surface; 72. First driving device; 73. Second driving device;

[0043] 8. Lower base unit; 81. Base; 82. Fixing fixture; 821. Contouring surface; 83. Elastic support structure;

[0044] 9. The starting position of the fit; 10. The ending position of the fit. DETAILED DESCRIPTION

[0045] In order to make the objectives, technical solutions and advantages of this application more clear, this application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0046] It should be noted that the relative arrangement of the components, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

[0047] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0048] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0049] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should have the usual meanings understood by people with ordinary skills in the field to which this application belongs. The "first", "second" and similar words used in the embodiments of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0050] As mentioned in the background technology section, in the preparation process of flexible OLED display products, it is necessary to fit heat dissipation films and other film materials to the cover plate. In related technologies, a roller is usually used to press the heat dissipation film to make it fit the cover plate. Although this method has strong compatibility and can be applied to a variety of special-shaped cover plates of different shapes, it is necessary to first establish a special-shaped cover plate database in the program. The special-shaped cover plate database stores the shape data of a variety of different special-shaped cover plates. During bonding, the program can control the roller according to the selected special-shaped cover plate shape data. Before bonding, the matching special-shaped cover plate shape data is selected from the cover plate database according to the shape of the special-shaped cover plate to be bonded, and the program loads the corresponding control instructions into the bonding equipment according to the selection result. The above-mentioned special-shaped cover plate shape data selection process and control instruction loading and debugging process are relatively complicated and will take up more working hours.

[0051] In order to retain the strong compatibility advantage of the above roller bonding method and simplify the program debugging process before bonding, such as Figure 1 、 Figure 2 and Figure 12 As shown, an embodiment of the present application provides a bonding device, including a scanning unit 1, for obtaining shape parameters 13 of a first film material to be bonded 4; a control unit 2, connected to the scanning unit 1, for generating a control instruction according to the shape parameter 13; a roller unit 3, connected to the control unit 2, for pressing a second film material to be bonded 5 along the shape of the first film material to be bonded 4 according to the control instruction, so that the second film material to be bonded 5 is bonded to the first film material to be bonded 4.

[0052] Before the bonding begins, the first film material 4 to be bonded can be fixed. The first film material 4 to be bonded can be a hard film material such as a glass cover plate. It has a specific shape before being fixed. The specific shape can be a C shape (such as Figure 3a As shown), L-type (as Figure 3b as shown) or S-type (as Figure 3c The surface to be bonded of the first film material 4 can be a convex arc surface or a concave arc surface. The first film material 4 can also be a flexible film material, which has a specific shape according to the shape of the fixture after being fixed.

[0053] To replace the manual input of the shape of the first film material 4 to be bonded, this embodiment automatically collects shape parameters 13 of the first film material 4 to be bonded via a scanning unit 1. For example, shape parameters 13 may be the radius of curvature of the first film material 4 or the position information of multiple points on the first film material 4. The control unit 2 recovers the shape of the first film material 4 based on the shape parameters 13 and generates control instructions after analysis. The control unit 2 then transmits the control instructions to the roller unit 3. The roller unit 3 is located on the side of the second film material 5 to be bonded away from the first film material 4. Upon receiving the control instructions, the roller unit 3 moves along the shape of the first film material 4 from a bonding starting position 9 (i.e., the initial bonding position of the first and second films 4, 5) to a bonding ending position 10 (i.e., the final bonding position of the first and second films 4, 5), while simultaneously pressing the second film 5 to gradually bond it to the first film 4.

[0054] The laminating device provided in this embodiment automatically obtains the shape parameters 13 of the first film material 4 to be laminated through the scanning unit 1, which can not only save the process of manual input and selection of debugging programs, but also, because the first film material 4 to be laminated has been fixed when the scanning unit 1 is working, the shape parameters 13 obtained by the scanning unit 1 correspond to the actual shape of the first film material 4 to be laminated during the laminating process. Therefore, the laminating device of this embodiment has lower requirements for product consistency and fixed position accuracy of the first film material 4 to be laminated. The laminating device of this embodiment also generates control instructions through the control unit 2 to control the roller unit 3 to move along the shape of the first film material 4 to be laminated from the laminating starting position 9 to the laminating ending position 10, while pressing the second film material 5 to be laminated downward so that it gradually laminates with the first film material 4, and ensures that the pressing force applied to the second film material 5 to be laminated is uniform during the laminating process, thereby ensuring the laminating quality.

[0055] In the laminating device of this embodiment, since the control of the roller unit 3 depends on the shape parameter 13 of the first film material 4 to be laminated, the difference between the shape of the first film material 4 to be laminated restored by the control unit 2 according to the shape parameter 13 and the actual shape of the first film material 4 to be laminated after the fixing is completed must be minimized as much as possible. In order to achieve the above purpose, as Figure 1 、 Figure 2 and Figure 4 As shown, in some embodiments, the scanning unit 1 includes a rangefinder 11 facing the first film material 4 to be bonded, and a scanning drive device 12 that drives the rangefinder 11 to move along a first direction; the rangefinder 11 is used to obtain the projected distance between multiple detection points of the first film material 4 to be bonded and the rangefinder 11 during the movement, as a shape parameter 13; wherein the first direction is the direction from the bonding starting position 9 to the bonding ending position 10.

[0056] The following Figure 2 、 Figure 11 and Figure 12 , the scanning unit 1 is disposed above the first film material 4 to be bonded. In the process of acquiring the shape parameters 13 of the first film material 4 to be bonded, the scanning unit 1 moves from the bonding starting position 9 to the bonding ending position 10. During the movement, the scanning unit 1 passes through multiple detection points on the first film material 4 to be bonded. When the scanning unit 1 moves directly above a detection point, the distance between the rangefinder 11 and the detection point is the projected distance. The rangefinder 11 detects the projected distance between itself and the detection point and sends the detected projected distance as the shape parameter 13 to the control unit 2.

[0057] Optionally, the rangefinder 11 may be one or more laser rangefinders, each of which has a sensitivity of up to ±0.3 μm and a measuring range of 0 to 100 mm, and is applicable to first films 4 to be bonded of all shapes with a step difference of less than 100 mm.

[0058] In addition, in order to improve the movement stability of the scanning unit 1, as shown in FIG. Figure 1 and Figure 2 As shown, the lamination device of this embodiment may further include a set of slide rails 6 disposed above the scanning unit 1. A scanning drive device 12 is mounted on the slide rails 6 and is capable of moving along the slide rails 6 at a preset constant speed to drive the rangefinder 11 to complete scanning of the first film material 4 to be laminated. Of course, in order to adjust the distance between the rangefinder 11 and the first film material 4 to be laminated, the scanning drive device 12 can also achieve a telescopic function using a device such as an electric cylinder to drive the rangefinder 11 toward or away from the first film material 4 to be laminated.

[0059] However, the distance between the distance meter 11 and the first film material 4 to be bonded can only be adjusted before or after scanning. During the scanning process, that is, when the distance meter 11 moves from the bonding starting position 9 to the bonding ending position 10, the distance between the distance meter 11 and the first film material 4 to be bonded remains unchanged. For example, Figure 11 When the first film material 4 to be bonded is placed horizontally, the rangefinder 11 is driven by the scanning drive device 12 to move horizontally from the bonding starting position 9 to the bonding ending position 10.

[0060] Generally, when the first film material 4 to be bonded is fixed, its second direction (such as Figure 1 and Figure 4 Therefore, in order to check the levelness of the first film material 4 to be bonded, as shown in the figure, Figure 4 As shown, in some embodiments, three rangefinders 11 are provided and are evenly distributed along a second direction perpendicular to the first direction. The three rangefinders 11 are evenly distributed along the second direction, corresponding to positions on both sides and in the middle of the first film material 4 to be bonded. When the levelness of the first film material 4 to be bonded in the second direction is ideal, the measurement readings of the three rangefinders 11 should be the same. If the measurement readings of the three rangefinders 11 are different, and the difference in values ​​exceeds 0.3mm, it means that the levelness of the first film material 4 to be bonded in the second direction does not meet the preset requirements. In this case, the bonding device of this embodiment can sound an alarm through sound and light, etc., to remind the operator to re-fix the first film material 4 to be bonded.

[0061] After the scanning unit 1 sends the projection distances corresponding to the multiple detection points obtained to the control unit 2, in some embodiments, the control unit 2 is also used to determine the positions of the corresponding detection points based on the multiple projection distances and fit to form a contour curve that matches the shape of the first film material 4 to be bonded; the control instructions are generated based on the contour curve.

[0062] Since the scanning unit 1 moves at a constant speed along a first direction at a preset speed, the real-time position of the rangefinder 11 is known during movement. Combining this position with the corresponding projected distance obtained by detection can determine the position of each detection point located on the surface of the first film material 4 to be bonded. The control unit 2 can fit these determined detection points to form a profiling curve that matches the shape of the first film material 4 to be bonded. Since the detection points are all located on the first film material 4 to be bonded, their positions can represent the actual position of the first film material 4 to be bonded. The more detection points are set, the closer the shape of the profiling curve passing through all the detection points will be to the actual shape of the first film material 4 to be bonded. After the profiling curve is formed, the control unit 2 can then generate control instructions for controlling the movement of various functional units such as the roller unit 3 based on the profiling curve.

[0063] For example, Figure 5 and Figure 12 As shown, in some embodiments, the roller unit 3 includes a roller 31 for pressing the second film material 5 to be bonded and a roller driving device 32 rotatably connected to the roller 31; the control instruction includes a roller control instruction 21, and the roller driving device 32 is used to drive the roller 31 to move according to the roller control instruction 21.

[0064] Optionally, the roller drive device 32 is also installed on the slide rail 6, and the roller drive device 32 has two motion forms: moving along the slide rail 6 and extending perpendicular to the slide rail 6, which can drive the roller 31 to move along the first direction (such as Figure 2 X direction in the Figure 2 The movement in the two directions is controlled by the roller control instruction 21 respectively, and the movement in the two directions can cooperate with each other so that the trajectory of the roller 31 moving from the bonding starting position 9 to the bonding ending position 10 matches the shape of the first film material 4 to be bonded.

[0065] The roller control instruction 21 is a control instruction generated by the control unit 2 for the roller 31 according to the movement requirements. Exemplarily, the roller control instruction 21 is generated as follows:

[0066] like Figure 14 The control unit 2 can divide the profiling curve into a plurality of intervals (or cells) according to the moving accuracy of the roller driving device 32 or the preset distance f along the first direction. Each interval contains a section of the profiling curve. The positions of the two end points of the profiling curve are as follows: Figure 14As shown in Figure 1, points A and B are shown in Figure 2. When the height difference between points A and B is less than or equal to the movement accuracy of the roller unit 3, a straight line connecting points A and B can be used as the movement trajectory of the roller unit 3 within this interval. For example, if the minimum movement accuracy of the roller unit 3 is 0.2 mm, and the height difference c between points A and B is less than or equal to 0.2 mm, a straight line connecting points A and B is the movement trajectory of the roller unit 3 within this interval.

[0067] When the height difference between point A and point B is greater than the movement accuracy of the roller unit 3, an intermediate point is set between point A and point B, and a multi-segment straight line is connected from point A through the intermediate point to point B. The multi-segment line serves as the movement trajectory of the roller unit 3 within the interval.

[0068] Connecting the movement trajectories within all intervals end to end yields the movement trajectory of the roller unit 3 from the lamination start position 9 to the lamination end position 10. The control unit 2 then analyzes the movement trajectory to generate roller control instructions 21 for controlling the roller drive device 32 to move in the first and third directions.

[0069] Before lamination begins, the second film material 5 to be laminated needs to be positioned on one side of the first film material 4 to be laminated. For example, Figure 1 、 Figure 6 and Figure 7 As shown, the bonding equipment of this embodiment also includes an upper base unit 7, which is spaced apart on one side of the roller unit 3 near the bonding termination position 10, and includes an upper positioning surface 711 for positioning the second film material 5 to be bonded; the upper base unit 7 is connected to the control unit 2; the control instruction includes an upper base control instruction 22, and the upper base unit 7 is used to move along the first direction according to the upper base control instruction 22, and during the movement, the second film material 5 to be bonded can be moved out from the upper positioning surface 711 and pressed and bonded to the first film material 4 to be bonded by the roller unit 3.

[0070] For example, the second film material 5 to be laminated is positioned above the first film material 4 to be laminated. During the lamination process, the upper base unit 7 first drives the second film material 5 to move to the lamination starting position 9, and one end of the second film material 5 and one end of the first film material 4 to be laminated are first laminated to each other at the lamination starting position 9. Then, the upper base unit 7 moves to the lamination ending position 10. Figure 13However, since part of the second film material 5 to be bonded has already been bonded to the fixed first film material 4 to be bonded, the second film material 5 to be bonded will gradually move out of the upper positioning surface 711 as the upper base unit 7 moves. At the moment the second film material 5 moves out of the upper positioning surface 711, there will be a certain gap between it and the first film material 4 to be bonded, that is, the two are not bonded at this time. Subsequently, the roller unit 3 will press the second film material 5 to be bonded that has moved out of the upper positioning surface 711, so that the second film material 5 to be bonded moves toward the first film material 4 to be bonded until the two are bonded to each other. The bonding process of the first film material 4 to be bonded and the second film material 5 to be bonded is the process in which the second film material 5 to be bonded is continuously moved out of the upper positioning surface 711 and is pressed by the roller unit 3 to contact and bond with the first film material 4 to be bonded.

[0071] During the lamination process, in order to ensure that the second film material 5 to be laminated is gradually moved out from the upper positioning surface 711 rather than falling off directly from the upper positioning surface 711, the upper positioning surface 711 needs to be flipped along with the undulating shape of the first film material 4 to be laminated. In order to achieve the flipping of the upper positioning surface 711, for example, Figure 6 、 Figure 7 and Figure 12 As shown, in some embodiments, the upper base unit 7 includes a carrier plate 71 provided with an upper positioning surface 711, a first driving device 72 rotatably connected to one side of the carrier plate 71 along a first direction, and a second driving device 73 rotatably connected to the other side of the carrier plate 71; the upper base control instruction 22 includes a first upper base instruction 221 and a second upper base instruction 222, and the first driving device 72 drives the carrier plate 71 closer to or away from the first film material 4 to be bonded according to the first upper base instruction 221, and the second driving device 73 drives the carrier plate 71 according to the second upper base instruction 222, so that the carrier plate 71 maintains a preset relative position with the first film material 4 to be bonded during the movement along the first direction.

[0072] The upper base control instruction 22 is a control instruction generated by the control unit 2 based on the movement requirements of the upper positioning surface 711. The upper base unit 7 maintains a preset relative position between the upper positioning surface 711 and the first film to be laminated 4 during the process of moving from the lamination starting position 9 to the lamination ending position 10 according to the upper base control instruction 22. For example, the first film to be laminated 4 protrudes toward the second film to be laminated 5. During the movement of the upper positioning surface 711 along the first direction, the upper positioning surface 711 approaches the straight line on which the edge of the lamination starting position 9 and the straight line on which the roller unit 3 contacts the second film to be laminated 5 are located. The same plane on which these two straight lines lie must remain tangent to the first film to be laminated 4.

[0073] by Figure 15For example, the curve in the figure is the contour curve of the first film material 4 to be bonded. The control unit 2 first determines the motion trajectory of the upper positioning surface 711 along the first direction based on the contour curve. In the process of the upper positioning surface 711 moving from the bonding starting position 9 to the bonding ending position 10, it is necessary for it to be close to the straight line where the edge of the bonding starting position 9 is located (since the axial direction of this straight line is the Y direction, it is represented by point d in the figure), and the straight line where the roller 31 of the roller unit 3 presses the position of the second film material 5 to be bonded (since the axial direction of this straight line is the Y direction, it is represented by point e in the figure). The same plane where the two straight lines are located (the line connecting point d and point e, that is, Figure 15 The dotted line in the figure) is tangent to the first film material 4 to be bonded (i.e., the curve in the figure).

[0074] It can be seen that the upper positioning surface 711 will continuously flip during the movement along the first direction, which requires that the extension and contraction amounts of the first drive device 72 and the second drive device 73 are not synchronized. Therefore, the control unit 2 will further analyze the motion trajectory of the upper positioning surface 711 along the first direction to split the upper base control instruction 22 into a first upper base instruction 221 and a second upper base instruction 222. The first upper base instruction 221 is sent to the first drive device 72, which controls the first drive device 72 to move along the first direction and, during the movement, drives the supporting plate 71 to move closer to or away from the first film material 4 to be bonded by extending and contracting the supporting plate 71 to move closer to or away from the first film material 4 to be bonded by extending and contracting the supporting plate 71 to move closer to or away from the first film material 4 to be bonded by extending and contracting the supporting plate 71 to move closer to or away from the first film material 4 to be bonded by ending the bonding position 10. The first driving device 72 and the second driving device 73 move independently to drive the carrying plate 71 to flip, so that the upper positioning surface 711 maintains a preset relative position with the first film material 4 to be bonded during the movement along the first direction.

[0075] Optionally, the first driving device 72 and the second driving device 73 are similar to the roller driving device 32 , and are rotatably connected to the supporting plate 71 via a rotating shaft and are connected to the slide rail 6 .

[0076] During the lamination process, the roller unit 3, due to its inherent motion accuracy limitations, moves along a curved trajectory formed by fitting numerous short straight line segments. In other words, the actual movement trajectory of the roller 31 of the roller unit 3 does not fully match the shape of the first film 4 to be laminated. Therefore, as the roller unit 3 moves toward the first film 4 to press the second film 5, the stress applied to the second film 5 is highly non-uniform, creating a risk of rupture. Therefore, the unit used to secure the first film 4 needs to have a certain degree of buffering capability.

[0077] In order to achieve the above functions, for example, Figure 8 and Figure 9 As shown, the bonding device of this embodiment also includes a lower base unit 8, which includes a base 81 and a fixing fixture 82 arranged above the base 81, and an elastic support structure 83 is evenly distributed between the base 81 and the fixing fixture 82; the fixing fixture 82 includes a contoured surface 821 for fixing the first film material 4 to be bonded, and the contoured surface 821 matches the shape of the first film material 4 to be bonded.

[0078] In order to fix the first film material 4 to be bonded and prevent it from moving during the bonding process, optionally, the fixing jig 82 is also provided with a plurality of through holes extending through the profiling surface 821, and the through holes are connected to the negative pressure device. The fixing jig 82 provides negative pressure adsorption through the through holes to fix the first film material 4 to be bonded. The plurality of through holes can be evenly arranged on the profiling surface 821, and the specific number, size and shape of the through holes can be set as needed, and are not specifically limited here. The through holes pass through the fixing jig 82 to form an air path connected to the negative pressure device. When it is necessary to fix the first film material 4 to be bonded on the profiling surface 821, the air path formed by the negative pressure device through the through holes generates negative pressure on the side of the first film material 4 to be bonded close to the profiling surface 821. Under the action of the air pressure on the other side of the first film material 4 to be bonded, the first film material 4 to be bonded is tightly attached to the profiling surface 821.

[0079] In addition, when the pressing force generated by the roller unit 3 is too large for laminating the first film material 4 and the second film material 5 to be laminar, the elastic support structure 83 will undergo elastic deformation to reduce the excessive pressing force, thereby achieving the purpose of buffering and protecting the first film material 4 and the second film material 5 to be laminar. For the elastic support structure 83, a layer of elastic material with uniform thickness can be selected, or a plurality of separate elastic members can be evenly arranged between the base 81 and the fixed fixture 82. For example, twenty-five longitudinal rigid springs are arranged between the base 81 and the fixed fixture 82, and the twenty-five springs are arranged in a 5×5 pattern. The elastic coefficient and compression stroke of each spring are the same. For example, the elastic coefficient of each spring is 2000N / mm. This can ensure the uniformity of the overall horizontality of the fixed fixture 82 and the uniformity of the pressing force applied to the first film material 4 and the second film material 5 to be laminar during the lamination process.

[0080] Based on the same inventive concept and in combination with the description of the bonding equipment of the above embodiments, this embodiment provides a film bonding method, which has the corresponding technical effects of the bonding equipment of the above embodiments and will not be repeated here.

[0081] like Figure 16 As shown, a film material laminating method adopts the laminating equipment of each embodiment above, and the method includes:

[0082] In step S101 , the scanning unit 1 obtains the shape parameters 13 of the first film material 4 to be bonded.

[0083] In step S102 , the control unit 2 generates a control instruction according to the shape parameter 13 .

[0084] In step S103 , the roller unit 3 presses the second film material 5 to be laminated along the shape of the first film material 4 according to the control instruction, so that the second film material 5 to be laminated is laminated to the first film material 4 .

[0085] Taking the case where the first film material 4 to be bonded is a protruding C-shaped cover plate and the second film material 5 to be bonded is a heat dissipation film as an example, the bonding process of the two will be described.

[0086] First, fix the cover plate to the contoured surface 821 of the lower base unit 8, and position the heat dissipation film flatly on the upper positioning surface 711. At this time, the upper base unit 7 and the roller unit 3 are moved out of the space above the first film material 4 to be bonded along the slide rail 6 and move to the standby position to provide space for the scanning unit 1 to move. Figure 10 At this time, the scanning unit 1 is located at an appropriate height above the lamination starting position 9 to prepare for work, including program recovery and setting the current position as the origin.

[0087] After the scanning unit 1 has completed its work preparation, it turns on the rangefinder 11 and starts to move evenly from the bonding starting position 9 to the bonding ending position 10 at a preset speed (such as 30 mm / s). Figure 11 During the movement process, the distance between each detection point on the cover plate and the distance meter 11 is obtained in real time through the distance meter 11 as the shape parameter 13 of the cover plate. When the scanning unit 1 moves to the bonding end position 10, its collection work has been completed. The scanning unit 1 moves out of the space above the first film material 4 to be bonded, and sends the acquired shape parameter 13 of the cover plate to the control unit 2 (optionally, the control unit 2 is an industrial computer), such as Figure 12 . After processing the shape parameters 13 of the cover plate, the control unit 2 obtains a control instruction, which includes a roller control instruction 21, a first upper base instruction 221, and a second upper base instruction 222. The roller control instruction 21 is sent to the roller driving device 32 through a signal line, the first upper base instruction 221 is sent to the first driving device 72, and the second upper base instruction 222 is sent to the second driving device 73. Under the coordinated action of the first driving device 72 and the second driving device 73, the carrier plate 71 drives the heat dissipation film close to the cover plate, so that one end of the heat dissipation film and one end of the cover plate are bonded at the bonding starting position 9. Afterwards, the carrier plate 71 moves to the bonding end position 10 and maintains the preset relative position with the cover plate by flipping, as shown in FIG. Figure 13 The roller unit 3 moves synchronously with the upper base unit 7 to press and remove the heat dissipation film from the upper positioning surface 711 so that it is stably attached to the surface of the cover.

[0088] It should be noted that the above description is limited to some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in an order different from that described in the above embodiments and still achieve the desired results. Furthermore, the processes depicted in the accompanying drawings do not necessarily require the specific order or sequential order shown to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0089] The various embodiments in this application are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0090] The description of this application is provided for purposes of illustration and description and is not intended to be exhaustive or to limit the application to the disclosed form. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the application and to enable those skilled in the art to understand the application and design various embodiments with various modifications suitable for specific applications.

[0091] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. Within the scope of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0092] While the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0093] The embodiments of the present application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of this application.

Claims

1. A laminating device, characterized in that: include: A scanning unit, configured to obtain shape parameters of the first film material to be laminated and determine the horizontality of the first film material to be laminated; a control unit connected to the scanning unit, and configured to generate a control instruction according to the shape parameters; a roller unit, disposed on a side of the second film to be laminated away from the first film to be laminated, and connected to the control unit, for pressing the second film to be laminated along the undulating shape of the first film to be laminated according to the control instruction, so as to laminate the second film to be laminated with the first film to be laminated; an upper base unit, spaced apart and arranged on one side of the roller unit close to the lamination termination position, and comprising an upper positioning surface for positioning the second film material to be laminated; The upper base unit is connected to the control unit; the control instruction includes an upper base control instruction, and the upper base unit is used to move along a first direction according to the upper base control instruction, and during the movement, the second film to be bonded can be moved out from the upper positioning surface and pressed and bonded to the first film to be bonded by the roller unit; wherein the first direction is the direction from the bonding starting position to the bonding ending position; The first film to be laminated protrudes toward the second film to be laminated, and during the movement of the upper positioning surface along the first direction, the straight line where the edge of the upper positioning surface is close to the lamination starting position and the straight line where the roller unit contacts the second film to be laminated are located, and the same plane where the two straight lines are located remains tangent to the first film to be laminated; The second film material to be bonded is a flexible film material; The first film material to be bonded is a hard film material, and has a C-shape, an L-shape, or an S-shape.

2. The laminating device according to claim 1, characterized in that: The scanning unit includes a rangefinder facing the first film to be bonded, and a scanning drive device driving the rangefinder to move along a first direction; The distance meter is used to obtain the projected distances between a plurality of detection points of the first film material to be bonded and the distance meter during the movement process as the shape parameters.

3. The laminating device according to claim 2, characterized in that: The rangefinders are provided with three and are evenly distributed along a second direction perpendicular to the first direction.

4. The laminating device according to claim 2, characterized in that: The control unit is further configured to determine positions of corresponding detection points according to the plurality of distances and to form a profiling curve that matches the shape of the first film to be bonded; and the control instruction is generated according to the profiling curve.

5. The laminating device according to claim 1, characterized in that: The roller unit includes a roller for pressing the second film to be bonded and a roller driving device rotatably connected to the roller; the control instruction includes a roller control instruction, and the roller driving device is used to drive the roller to move according to the roller control instruction.

6. The laminating device according to claim 1, characterized in that: The upper base unit includes a supporting plate provided with an upper positioning surface, a first driving device rotatably connected to one side of the supporting plate along a first direction, and a second driving device rotatably connected to the other side of the supporting plate; The upper base control instruction includes a first upper base instruction and a second upper base instruction. The first driving device drives the supporting plate closer to or away from the first film to be bonded according to the first upper base instruction, and the second driving device drives the supporting plate closer to or away from the first film to be bonded according to the second upper base instruction, so that the supporting plate maintains a preset relative position with the first film to be bonded during the movement along the first direction.

7. The laminating device according to claim 6, characterized in that: The first film material to be laminated protrudes toward the second film material to be laminated, and the preset relative position between the supporting plate and the first film material to be laminated is: The straight line where the edge of the upper positioning surface close to the laminating starting position is located, and the straight line where the position where the roller unit presses the second film to be laminated is located, the same plane where the two straight lines are located is tangent to the first film to be laminated.

8. The laminating device according to claim 1, characterized in that: Also includes: The lower base unit comprises a base and a fixing fixture arranged above the base, and an elastic support structure is evenly distributed between the base and the fixing fixture; The fixing fixture includes a contoured surface for fixing the first film material to be bonded, and the contoured surface matches the shape of the first film material to be bonded.

9. A film laminating method, characterized in that: Using the laminating device according to any one of claims 1 to 8, the method comprises: The scanning unit obtains shape parameters of the first film material to be bonded; The control unit generates a control instruction according to the shape parameters; The roller unit presses the second film to be laminated along the shape of the first film to be laminated according to the control instruction, so that the second film to be laminated is laminated to the first film to be laminated.

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