Film pasting device

Abstract

The utility model provides a film pasting device, which relates to the technical field of film pasting, and comprises a frame body and a pressing shaft, the first side of the frame body is provided with a positioning cavity, and the second side of the frame body is provided with a hollow part communicated with the positioning cavity; the first end of the second side of the frame body is provided with a first positioning assembly used for being in positioning fit with the first end of the positioning film. The second end of the second side of the frame body is provided with a second positioning assembly used for being in positioning fit with the second end of the positioning film. The pressing shaft is arranged in the hollow part, and at least one end of the pressing shaft is detachably connected with the frame body. At least one end of the pressing shaft is detachably connected with the frame body, so that before the membrane module is mounted, only the pressing shaft needs to be dismounted, and the membrane module can be mounted in place without turning over the frame body; after the film assembly is installed in place, film pasting can be conducted by connecting the pressing shaft with the frame body, the frame body does not need to be turned over many times in the process, the film pasting step is simplified, and the film pasting efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of film application technology, and in particular to a film application device. Background Technology

[0002] With the continuous development and innovation of technology, electronic products have become an indispensable part of people's lives. To prevent scratches and cracks, people often apply a tempered glass screen protector to the screen of electronic products. Most existing screen protectors consist of a tempered glass film and a release liner. To achieve a good application result, a screen protector applicator is usually needed. However, existing screen protector applicators suffer from cumbersome installation of the film components, severely impacting the user experience. Utility Model Content

[0003] This invention provides a film application device to solve the problem of cumbersome film assembly installation in the existing film application process.

[0004] This utility model provides a film-applying device for applying film to a membrane assembly. The membrane assembly includes a positioning film, a protective film, a dust-removing film, and a pull strip.

[0005] A frame, wherein a positioning cavity is provided on a first side of the frame, and a hollow portion communicating with the positioning cavity is provided on a second side of the frame; a first positioning component for positioning and engaging with the first end of the positioning film is provided at the first end of the second side of the frame; and a second positioning component for positioning and engaging with the second end of the positioning film is provided at the second end of the second side of the frame.

[0006] A pressure shaft is disposed in the hollow portion, and at least one end of the pressure shaft is detachably connected to the frame; the pressure shaft is used to bend the membrane assembly toward the side closer to the electronic device.

[0007] According to an embodiment of the present invention, a film-applying device is provided, wherein the frame includes two long side frames and two short side frames, the two long side frames and the two short side frames cooperate to form the positioning cavity, and the two ends of the pressure shaft are detachably connected to the two long side frames one to one.

[0008] According to an embodiment of the present invention, a film-applying device is provided, wherein one of the pressure shaft and the long frame is provided with a first latch, and the other of the pressure shaft and the long frame is provided with a first slot, and the first latch engages with the first slot.

[0009] According to an embodiment of the present invention, a film-applying device is provided in which the two ends of the pressure shaft are connected to the two long frame edges one by one by fasteners.

[0010] According to an embodiment of the present invention, a film-applying device is provided, wherein the fastener includes at least one of screws or fasteners.

[0011] According to an embodiment of the present invention, a film-applying device is provided, wherein the pressure shaft is connected to the middle of the long frame, and the pressure shaft is perpendicular to the long frame or forms an acute angle with the long frame.

[0012] According to an embodiment of the present invention, a film-applying device is provided, wherein the pressure shaft has a contact portion on the side facing the positioning cavity for abutting against the positioning film, and the contact portion is provided with an elastic pressure strip that extends along the length direction of the pressure shaft.

[0013] According to an embodiment of the present invention, a film-applying device is provided, wherein the first positioning component includes:

[0014] The pressure rod has a first end hinged to the first end of the second side of the frame, and at least one first positioning post is provided in the middle of the pressure rod. The position of the first positioning post corresponds one-to-one with the position of the positioning hole at the first end of the positioning film. The second end of the pressure rod is engaged with the first end of the second side of the frame.

[0015] According to an embodiment of the present invention, a film-applying device is provided with a positioning blind hole at the first end of the second side of the frame. The position of the positioning blind hole corresponds one-to-one with the position of the first positioning post, and the first positioning post is embedded in the corresponding positioning blind hole.

[0016] According to an embodiment of the present invention, a film-applying device is provided, wherein a plurality of positioning protrusions are spaced apart on the sidewall of the positioning cavity, and the surface of the positioning protrusions is provided with a flexible coating.

[0017] According to an embodiment of the present invention, a film-applying device is provided, wherein the frame is provided with a strip-shaped hole for the dust removal film and the pull strip to pass through, and the strip-shaped hole is located on the short frame.

[0018] According to an embodiment of the present invention, a film-applying device is provided in which the width of the strip-shaped holes is greater than or equal to the width of the dust-removing film, and the height of the strip-shaped holes is greater than or equal to the thickness of the dust-removing film.

[0019] The film-applying device provided in this embodiment of the utility model connects at least one end of the pressure roller to the frame in a detachable manner. Before installing the film assembly, only the pressure roller needs to be removed, and the film assembly can be installed in place without flipping the frame. After the film assembly is installed in place, the pressure roller is connected to the frame to apply the film. In this process, there is no need to flip the frame multiple times, which simplifies the film-applying steps and improves the film-applying efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the film-applying device provided in an embodiment of the present invention;

[0022] Figure 2 This is one of the exploded structural diagrams of the film-applying device provided in this embodiment of the utility model;

[0023] Figure 3 This is the second exploded structural diagram of the film-applying device provided in this embodiment of the utility model;

[0024] Figure 4 This is the third exploded structural diagram of the film-applying device provided in this embodiment of the utility model;

[0025] Figure 5 This is a schematic diagram showing the connection relationship between the frame and the pressure shaft provided in this embodiment of the utility model;

[0026] Figure 6 This is an exploded structural diagram of the membrane module provided in an embodiment of the present invention.

[0027] Figure label:

[0028] 10. Frame; 11. Positioning cavity; 12. Pressure shaft; 13. First limiting groove; 14. Second limiting groove; 15. Elastic pressure strip; 16. Third limiting groove; 17. Positioning protrusion; 18. Opening; 19. Strip hole;

[0029] 20. First positioning component; 21. First positioning post; 22. Pressure rod; 23. Positioning blind hole; 24. First latch; 25. First slot; 26. Second latch; 27. Second slot;

[0030] 30. Second positioning component; 31. Second positioning post;

[0031] 40. Membrane module; 41. Positioning membrane; 42. Protective membrane; 43. Dust removal membrane; 44. Tie strip;

[0032] 50. Electronic equipment. Detailed Implementation

[0033] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0034] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0036] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0038] The following is combined with Figures 1-6 This invention describes a film-applying device according to an embodiment of the present invention.

[0039] like Figure 1 and Figure 2 As shown, the film application device is used to apply film to the film assembly 40. The film assembly 40 includes a positioning film 41, a protective film 42, a dust removal film 43, and a pull strip 44. The film application device includes a frame 10 and a pressure shaft 12. A positioning cavity 11 is provided on the first side of the frame 10, and a hollow portion communicating with the positioning cavity 11 is provided on the second side of the frame 10. A first positioning component 20 for positioning and engaging with the first end of the positioning film 41 is provided at the first end of the second side of the frame 10. A second positioning component 30 for positioning and engaging with the second end of the positioning film 41 is provided at the second end of the second side of the frame 10. The pressure shaft 12 is provided in the hollow portion, and at least one end of the pressure shaft 12 is detachably connected to the frame 10. The pressure shaft 12 is used to bend the film assembly 40 toward the side closer to the electronic device 50.

[0040] It should be noted that the electronic device 50 in this utility model can be a tablet computer, mobile phone, iPad or other electronic device.

[0041] The film-applying device provided in this embodiment of the utility model connects at least one end of the pressure roller 12 to the frame 10 in a detachable manner. Before installing the film assembly 40, only the pressure roller 12 needs to be removed, and the film assembly 40 can be installed in place without flipping the frame 10. After the film assembly 40 is installed in place, the pressure roller 12 is connected to the frame 10 to apply the film. In this process, the frame 10 does not need to be flipped multiple times, which simplifies the film-applying steps and improves the film-applying efficiency.

[0042] In embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the pressure shaft 12 is arranged along the width direction of the frame 10, and both ends of the pressure shaft 12 are detachably connected to the two long side frames one to one. Of course, one end of the pressure shaft 12 can also be detachably connected to one long side frame, and the other end can be hinged to the other long side frame.

[0043] In embodiments of this utility model, such as Figure 2 As shown, the pressure shaft 12 has first latches 24 at both ends and first slots 25 on the two long sidewalls. The two first slots 25 are aligned in a straight line along the width of the frame 10. The pressure shaft 12 is connected to the frame 10 by engaging the first latches 24 with the first slots 25. This snap-fit ​​connection facilitates the disassembly and installation of the pressure shaft 12.

[0044] Of course, first slots 25 can be provided at both ends of the pressure shaft 12, and first latches 24 can be provided on the two long sides; the pressure shaft 12 and the frame 10 can be connected by the first latches 24 and the first slots 25 engaging.

[0045] In another embodiment of this utility model, the two ends of the pressure shaft 12 are connected to the two long side frames one-to-one by fasteners (not shown), the fasteners including at least one of screws or fasteners. By using fasteners to fix the pressure shaft 12, the installation and disassembly of the pressure shaft 12 can also be facilitated.

[0046] In embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the first positioning component 20 includes a pressure rod 22. The first end of the pressure rod 22 is hinged to the first end of the second side of the frame 10. Specifically, the first end of the pressure rod 22 is hinged to the first short frame. At least one first positioning post 21 is provided in the middle of the pressure rod 22. In this embodiment, two first positioning posts 21 are provided at intervals in the middle of the pressure rod 22. The two first positioning posts 21 are arranged at intervals along the length direction of the pressure rod 22. The number of first positioning posts 21 is the same as the number of positioning holes at the first end of the positioning film 41. The positions of the first positioning posts 21 correspond one-to-one with the positions of the positioning holes at the first end of the positioning film 41.

[0047] The second end of the pressure rod 22 engages with the first end of the second side of the frame 10. Specifically, the second end of the pressure rod 22 is provided with a second latch 26, and the first end of the second side of the frame 10 is provided with a second slot 27, that is, the first short frame is provided with a second slot 27; the second latch 26 and the second slot 27 are engaged. Alternatively, the second end of the pressure rod 22 can be provided with a second slot 27, and the first end of the second side of the frame 10 can be provided with a second latch 26, that is, the first short frame is provided with a second latch 26; the second latch 26 and the second slot 27 are engaged.

[0048] In an embodiment of this utility model, a positioning blind hole 23 is provided at the first end of the second side of the frame 10. The number of positioning blind holes 23 is the same as the number of first positioning posts 21, and the positions of the positioning blind holes 23 correspond one-to-one with the positions of the first positioning posts 21. When the second latch 26 engages with the second slot 27, the first positioning post 21 is partially embedded in the positioning blind hole 23. At this time, the first end of the positioning film 41 is sleeved on the first positioning post 21 through the positioning hole, and the positioning film 41 cannot be separated from the first positioning post 21.

[0049] In this embodiment of the invention, the frame 10 is made of plastic to reduce its weight. Of course, the frame 10 can also be made of aluminum alloy or other materials. The edges of the frame 10 are rounded to improve user comfort when using the film application device.

[0050] In an embodiment of this utility model, the frame 10 includes two long sidewalls and two short sidewalls, which cooperate to form a positioning cavity 11. The two short sidewalls are referred to as the first short sidewall and the second short sidewall, respectively. The first short sidewall is located at the first end of the frame 10, and the second short sidewall is located at the second end of the frame 10. The frame 10 is provided with a strip-shaped hole 19 for the passage of the dust removal membrane 43 and the pull strip 44; the strip-shaped hole 19 is located on the second short sidewall and extends along the length of the second short sidewall. The width of the strip-shaped hole 19 is greater than or equal to the width of the dust removal membrane 43, and the height of the strip-shaped hole 19 is greater than or equal to the thickness of the dust removal membrane 43.

[0051] In an embodiment of this utility model, the first positioning component 20 is located on the first short frame. The first positioning component 20 includes at least one first positioning post 21. Specifically, in this embodiment, the first positioning component 20 includes two first positioning posts 21, which are arranged at intervals along the width direction of the frame 10. The interval arrangement of the two first positioning posts 21 prevents relative rotation between the positioning film 41 and the first positioning post 21 during positioning, thus preventing misalignment of the protective film 42. The first end of the positioning film 41 is provided with at least one positioning hole. The number of positioning holes at the first end of the positioning film 41 is the same as the number of first positioning posts 21, and the positions of the first positioning posts 21 correspond one-to-one with the positions of the positioning holes at the first end of the positioning film 41. In another embodiment, the first positioning component 20 includes one first positioning post 21. In this case, the first positioning post 21 is a strip-shaped positioning post, extending along the width direction of the frame 10. Using a strip-shaped positioning post also prevents relative rotation between the first positioning post 21 and the positioning hole at the first end of the positioning film 41 during positioning, improving the stability of the film assembly 40. Of course, the number of first positioning posts 21 is not limited to this; it can also be three, four, or more.

[0052] Furthermore, in order to prevent the membrane assembly 40 from rotating relative to the positioning hole at the first end of the positioning membrane 41 during the positioning and engagement process, the cross-sectional shape of the first positioning post 21 is the same as the shape of the positioning hole, and both are non-circular.

[0053] Furthermore, for membrane modules 40 of the same model, the shapes of the positioning holes on the positioning membrane 41 may differ due to different manufacturers. To accommodate the positioning holes of different positioning membranes 41, the first positioning post 21 is detachably connected to the frame 10. Specifically, the frame 10 is provided with insertion holes, the number of which is the same as the number of first positioning posts 21, and the first positioning posts 21 are inserted into the corresponding insertion holes. In use, by replacing the first positioning posts 21 with different cross-sectional shapes, membrane modules 40 from different manufacturers can be adapted. Of course, the detachable connection between the first positioning post 21 and the frame 10 is not limited to an insertion connection; it can also be a screw connection or other detachable connection methods.

[0054] In embodiments of this utility model, such as Figure 3 As shown, the second positioning component 30 is located on the second short frame. The second positioning component 30 includes at least one second positioning post 31. Specifically, in this embodiment, the second positioning component 30 includes two second positioning posts 31, which are arranged at intervals along the width direction of the frame 10. The interval arrangement of the two second positioning posts 31 prevents relative rotation between the positioning film 41 and the second positioning posts 31, thus preventing misalignment of the protective film 42. The second end of the positioning film 41 is provided with at least one positioning hole. The number of positioning holes at the second end of the positioning film 41 is the same as the number of second positioning posts 31, and the positions of the second positioning posts 31 correspond one-to-one with the positions of the positioning holes at the second end of the positioning film 41. In another embodiment, the second positioning component 30 includes one second positioning post 31. In this case, the second positioning post 31 is a strip-shaped positioning post that extends along the width direction of the frame 10. Using a strip-shaped positioning post also prevents relative rotation between the second positioning post 31 and the positioning hole at the second end of the positioning film 41 during the positioning process, improving the stability of the film component 40. Of course, the number of first positioning posts 21 is not limited to this; it can also be three, four, or more.

[0055] Furthermore, in order to prevent the membrane assembly 40 from rotating relative to the positioning hole at the second end of the positioning membrane 41 during the positioning and fitting process, the cross-sectional shape of the second positioning post 31 is the same as the shape of the positioning hole, and both are non-circular.

[0056] Furthermore, to accommodate the positioning holes of different positioning membranes 41, the second positioning post 31 is detachably connected to the frame 10. Specifically, the frame 10 is provided with insertion holes, the number of which is the same as the number of second positioning posts 31, and the second positioning posts 31 are inserted into the corresponding insertion holes. In use, by replacing the second positioning posts 31 with different cross-sectional shapes, membrane modules 40 from different manufacturers can be adapted. Of course, the detachable connection between the second positioning post 31 and the frame 10 is not limited to an insertion connection; it can also be a screw connection or other detachable connection methods.

[0057] In an embodiment of this utility model, the first positioning component 20 includes two first positioning posts 21, and the second positioning component 30 includes two second positioning posts 31, wherein the cross-sectional shapes of the two first positioning posts 21 are different. During the installation of the membrane component 40, if the membrane component 40 is misplaced, the two positioning holes at the first end of the positioning membrane 41 cannot engage with the two first positioning posts 21 due to the different cross-sectional shapes of the two first positioning posts 21. Similarly, when the cross-sectional shapes of the two second positioning posts 31 are different, the two positioning holes at the second end of the positioning membrane 41 cannot engage with the two second positioning posts 31. Only after the membrane component 40 is accurately placed in position can the positioning posts engage with the corresponding positioning holes.

[0058] In embodiments of this utility model, such as Figure 3 As shown, a first limiting groove 13 is provided at the first end of the second side of the frame 10, and a first positioning post 21 is located within the first limiting groove 13. Specifically, the first positioning post 21 is located on the bottom wall of the first limiting groove 13. The first limiting groove 13 is used to limit the first end of the positioning film 41 to prevent the positioning film 41 from moving along the width direction of the frame 10. By cooperating with the first positioning groove 13 and the first positioning post 21, the positioning film 41 can be limited from multiple directions, which can effectively prevent the positioning film 41 from moving and improve the stability of the film assembly 40 during the film application process.

[0059] In embodiments of this utility model, such as Figure 3 As shown, a second limiting groove 14 is provided at the second end of the second side of the frame 10, and a second positioning post 31 is located within the second limiting groove 14. Specifically, the second positioning post 31 is located on the bottom wall of the second limiting groove 14. The second limiting groove 14 is used to limit the second end of the positioning film 41 to prevent the positioning film 41 from moving along the width direction of the frame 10. By cooperating with the second limiting groove 14 and the second positioning post 31, the positioning film 41 can be limited from multiple directions, effectively preventing the positioning film 41 from moving and further improving the stability of the film assembly 40 during the film application process.

[0060] In this embodiment of the invention, the pressure shaft 12 is arranged along the width direction of the frame 10. The side of the pressure shaft 12 facing the positioning cavity 11 has a contact portion for abutting against the positioning membrane 41. The contact portion is used to contact the membrane assembly 40, so that the membrane assembly 40 bends towards the side closer to the electronic device 50. The distance between at least one of the bottom walls of the first limiting groove 13 and the second limiting groove 14 and the plane where the contact portion is located is greater than or equal to 0.1 cm and less than or equal to 1.5 cm. It should be noted that when the contact portion is provided with an elastic pressure strip 15, the distance here refers to the distance between the side of the elastic pressure strip 15 facing the electronic device and the bottom wall of the limiting groove being greater than or equal to 0.1 cm and less than or equal to 1.5 cm. The size of the aforementioned distance determines the degree of bending of the membrane assembly 40. When the distance is greater than 1.5cm, the membrane assembly 40 will bend too much, causing the protective film 42 to separate from the dust removal film 43. When the distance is less than 0.1cm, the protective film 42 will not be able to expel air well during the bonding process with the electronic device screen, resulting in a poor bonding effect.

[0061] In embodiments of this utility model, such as Figure 5 As shown, the contact portion is provided with an elastic pressure strip 15, which extends along the length of the pressure shaft 12. The elastic pressure strip 15 is annular or strip-shaped, and is made of sponge, rubber, silicone, or other flexible materials. Using the elastic pressure strip 15 to contact the membrane assembly 40 can prevent wear on the membrane assembly 40.

[0062] In embodiments of this utility model, such as Figure 3 As shown, a third limiting groove 16 is provided at the first end of the second side of the frame 10. Specifically, the third limiting groove 16 is located on the first short frame. The third limiting groove 16 is located on the side of the first limiting groove 13 near the pressure shaft 12. The first limiting groove 13 and the third limiting groove 16 are connected, and a step is formed between the first limiting groove 13 and the third limiting groove 16. The third limiting groove 16 is used to limit the first end of the dust removal membrane 43. After the membrane assembly 40 is installed in place, the first end of the dust removal membrane 43 abuts against the third limiting groove 16. By limiting the dust removal membrane 43 through the third limiting groove 16, the stability of the membrane assembly 40 is further improved, and the protective film 42 is prevented from shifting during the film application process.

[0063] In an embodiment of this invention, the sidewall of the positioning cavity 11 is provided with a plurality of positioning protrusions 17 at intervals. After the electronic device 50 is inserted into the positioning cavity 11, the positioning protrusions 17 abut against the electronic device 50, so that there is a gap between the electronic device 50 and the inner wall of the positioning cavity 11, which facilitates the removal of the electronic device 50 after the film is applied.

[0064] In an embodiment of this invention, a flexible coating is provided on the surface of the positioning protrusion 17. Specifically, the flexible coating can be applied to the surface of the positioning protrusion 17. The flexible coating can prevent the positioning protrusion 17 from directly contacting the electronic device housing, thus avoiding scratches on the housing surface. The flexible coating is made of rubber or silicone.

[0065] In an embodiment of this utility model, the pressure shaft 12 divides the hollowed-out portion into two openings 18, the width of which is greater than the width of the positioning film 41, so as to facilitate the film assembly 40 to extend out of the positioning cavity 11 through the openings 18.

[0066] In embodiments of this utility model, such as Figure 1 As shown, the pressure shaft 12 is connected to the middle of the long frame and is perpendicular to the long frame. The position of the pressure shaft 12 determines the bending position of the film assembly 40. By setting the pressure shaft 12 in the middle of the frame 10, the middle of the protective film 42 can be first bonded to the screen of the electronic device, and the area where the film assembly 40 is bonded to the screen of the electronic device gradually expands from the middle to both sides. Of course, the pressure shaft 12 can also not be perpendicular to the long frame; the pressure shaft 12 and the long frame can form an acute angle greater than 45°.

[0067] The following is combined with Figures 1 to 6 A specific embodiment of this utility model is described, such as... Figures 1 to 6 As shown, the film application device includes a frame 10, which is a rectangular frame made of plastic, with rounded corners. The first side of the frame 10 has a positioning cavity 11, which is rectangular and serves to accommodate and position the electronic device 50. The size and shape of the positioning cavity 11 are adapted to the size and shape of the electronic device 50.

[0068] The frame 10 includes two long sidewalls and two short sidewalls, which cooperate to form a positioning cavity 11. The first short sidewall is located at the first end of the frame 10, the second short sidewall is located at the second end of the frame 10, and the strip hole 19 is located on the second short sidewall, extending along the width direction of the frame 10.

[0069] The second side of the frame 10 is provided with a hollow part that communicates with the positioning cavity 11. The pressure shaft 12 has a strip-shaped structure and is provided in the hollow part. The pressure shaft 12 is used to bend the membrane assembly 40 toward the side closer to the electronic device 50.

[0070] The pressure shaft 12 has first latches 24 at both ends and first slots 25 on the two long side frames. The two first slots 25 are aligned in the width direction of the frame 10. The first latches 24 and first slots 25 engage with each other. To improve the connection strength between the pressure shaft 12 and the long side frames, the ends of the pressure shaft 12 are widened. The pressure shaft 12 divides the hollowed-out portion into two openings 18. The two openings 18 have the same shape and size, and their width is greater than the width of the positioning film 41. The two openings 18 are symmetrically arranged about the pressure shaft 12.

[0071] The pressure shaft 12 has a contact portion on the side facing the positioning cavity 11 for abutting against the positioning membrane 41. The contact portion is provided with a groove, and the elastic pressure strip 15 is embedded in the groove.

[0072] The first positioning component 20 includes a pressure rod 22, the first end of which is hinged to a first short frame. Two first positioning posts 21 are spaced apart at the middle of the pressure rod 22, arranged along its length. The positions of the first positioning posts 21 correspond one-to-one with the positioning holes at the first end of the positioning film 41. A second latch 26 is provided at the second end of the pressure rod 22, and a second slot 27 is provided on the first short frame; the second latch 26 and the second slot 27 are engaged and connected.

[0073] The first end of the second side of the frame 10 is provided with a positioning blind hole 23. The number of positioning blind holes 23 is the same as the number of first positioning posts 21, and the positions of the positioning blind holes 23 correspond one-to-one with the positions of the first positioning posts 21. When the second latch 26 engages with the second slot 27, the first positioning post 21 is partially embedded in the positioning blind hole 23.

[0074] The second positioning component 30 is located on the second short frame. The second positioning component 30 includes two second positioning posts 31, which are spaced apart along the width direction of the frame 10. The number of positioning holes at the second end of the positioning film 41 is the same as the number of second positioning posts 31, and the positions of the second positioning posts 31 correspond one-to-one with the positions of the positioning holes at the second end of the positioning film 41. The cross-sectional shape of the second positioning posts 31 is the same as the shape of the positioning holes, and both are non-circular. The cross-sectional shapes of the two first positioning posts 21 are different, and similarly, the cross-sectional shapes of the two second positioning posts 31 are different.

[0075] A first limiting groove 13 is provided at the first end of the second side of the frame 10, and a first positioning post 21 is located on the bottom wall of the first limiting groove 13. The first limiting groove 13 is used to limit the first end of the positioning film 41 to prevent the positioning film 41 from moving along the width direction of the frame 10. A second limiting groove 14 is provided at the second end of the second side of the frame 10, and a second positioning post 31 is located on the bottom wall of the second limiting groove 14. The second limiting groove 14 is used to limit the second end of the positioning film 41 to prevent the positioning film 41 from moving along the width direction of the frame 10.

[0076] like Figure 4 As shown, the working principle of the film application device of this utility model is as follows: First, the pressure shaft 12 is removed, then the film assembly 40 is placed on the second side of the frame 10. The second end of the positioning film 41 is positioned by the second positioning post 31, and the first end of the positioning film 41 is positioned by the first positioning post 21. The pressure shaft 12 is installed so that it abuts against the film assembly 40. The pull bar 44 is pulled by hand, causing the dust removal film 43 to separate from the protective film 42, and to move towards the strip hole 19 along the gap between the protective film 42 and the electronic device 50. Finally, the dust removal film 43 and the pull bar 44 are pulled out of the positioning cavity 11 through the strip hole 19. Due to the presence of the pressure shaft 12, the pressure shaft 12 causes the film assembly 40 to bend towards the side closer to the electronic device 50. The middle part of the film first adheres to the screen of the electronic device. Under the elastic action of the protective film 42, the area where the film assembly 40 adheres to the screen of the electronic device gradually expands from the middle to both sides, ultimately achieving film application.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A film-applying device, the film-applying device being used for applying film to a membrane assembly, the membrane assembly comprising a positioning film, a protective film, a dust-removing film, and a tension strip, characterized in that, include: A frame, wherein a positioning cavity is provided on a first side of the frame, and a hollow portion communicating with the positioning cavity is provided on a second side of the frame; a first positioning component for positioning and engaging with the first end of the positioning film is provided at the first end of the second side of the frame; and a second positioning component for positioning and engaging with the second end of the positioning film is provided at the second end of the second side of the frame. A pressure shaft is disposed in the hollow portion, and at least one end of the pressure shaft is detachably connected to the frame; the pressure shaft is used to bend the membrane assembly toward the side closer to the electronic device.

2. The film-applying device according to claim 1, characterized in that, The frame includes two long sidewalls and two short sidewalls. The two long sidewalls and the two short sidewalls cooperate to form the positioning cavity. The two ends of the pressure shaft are detachably connected to the two long sidewalls in a one-to-one correspondence.

3. The film-applying device according to claim 2, characterized in that, One of the pressure shaft and the long frame is provided with a first latch, and the other of the pressure shaft and the long frame is provided with a first slot, and the first latch and the first slot engage with each other.

4. The film-applying device according to claim 2, characterized in that, The two ends of the pressure shaft are connected to the two long side frames one by one by fasteners.

5. The film-applying device according to claim 4, characterized in that, The fasteners include at least one of screws or fasteners.

6. The film-applying device according to any one of claims 2 to 5, characterized in that, The pressure shaft is connected to the middle of the long frame, and the pressure shaft is perpendicular to the long frame or forms an acute angle with the long frame.

7. The film-applying device according to any one of claims 1 to 5, characterized in that, The pressure shaft has a contact portion on the side facing the positioning cavity for abutting against the positioning film. The contact portion is provided with an elastic pressure strip that extends along the length direction of the pressure shaft.

8. The film-applying device according to any one of claims 1 to 5, characterized in that, The first positioning component includes: The pressure rod has a first end hinged to the first end of the second side of the frame, and at least one first positioning post is provided in the middle of the pressure rod. The position of the first positioning post corresponds one-to-one with the position of the positioning hole at the first end of the positioning film. The second end of the pressure rod is engaged with the first end of the second side of the frame.

9. The film-applying device according to claim 8, characterized in that, The first end of the second side of the frame is provided with a positioning blind hole, the position of the positioning blind hole corresponds one-to-one with the position of the first positioning post, and the first positioning post is embedded in the corresponding positioning blind hole.

10. The film-applying device according to any one of claims 1 to 5, characterized in that, The sidewall of the positioning cavity is provided with a plurality of positioning protrusions at intervals, and the surface of the positioning protrusions is provided with a flexible coating.

11. The film-applying device according to any one of claims 2 to 5, characterized in that, The frame is provided with strip-shaped holes for the dust removal membrane and the pull strip to pass through, and the strip-shaped holes are located on the short side frame.

12. The film-applying device according to claim 11, characterized in that, The width of the strip hole is greater than or equal to the width of the dust removal membrane, and the height of the strip hole is greater than or equal to the thickness of the dust removal membrane.

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