Film pasting device

Abstract

A film pasting device, comprising an upper cover (11), a base (12), a tray (20), a screen protective film (30) and a protective film positioning member (25). The upper cover (11) is mounted on the base (12) in an openable and closable manner, the base (12) being provided with a drawing hole (121). The tray (20) is mounted on the base (12), the tray (20) being provided with an accommodating groove (201) and a drawing opening (203) which is docked with the drawing hole (121). The screen protective film (30) is arranged in the accommodating groove (201), the protective film positioning member (25) being arranged on the bottom wall of the accommodating groove (201). The protective film positioning member (25) is pasted to the screen protective film (30), the protective film positioning member (25) being a flexible member.

Description

Film application device

[0001] This application claims priority to Chinese patent application No. 202420902251.8, filed on April 26, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of film application technology, and in particular to a film application device. Background Technology

[0003] To protect the screens of mobile devices such as smartphones and tablets from scratches during use, a screen protector is typically applied. Currently, the application device and the screen protector are relatively independent. During use, the consumer needs to perform positioning to ensure successful application. Usually, the protruding part of the screen protector, which is away from the release film on the mobile device, is fixed to the application device for positioning. However, due to the small effective fixing area, corresponding support blocks are often required for auxiliary support. This increases the number of parts and cannot reliably guarantee the alignment between the screen protector and the screen, easily affecting the bonding quality and the success rate of application. Technical issues

[0004] The main objective of this application is to provide a film application device that aims to improve the adhesion quality of film. Technical solutions

[0005] To achieve the above objectives, the film application device proposed in this application includes:

[0006] A top cover and a base, wherein the top cover is foldably mounted on the base, and the base is provided with a pull-out hole;

[0007] A tray is mounted on the base, the tray having a receiving groove and a pull-out opening for engaging with the pull-out hole;

[0008] Screen protector, built into the receiving slot; and

[0009] A protective film positioning component is disposed on the bottom wall of the receiving groove. The protective film positioning component is bonded to the screen protective film and is a flexible component.

[0010] In one embodiment, the protective film positioning member includes an elastic body, and the screen protective film and the bottom wall of the receiving groove are respectively bonded to opposite sides of the elastic body.

[0011] In one embodiment, the elastic body is made of any one of foam, rubber, or silicone.

[0012] Alternatively, the protective film positioning element is double-sided foam adhesive.

[0013] In one embodiment, the protective film positioning member extends along the extension direction of the long side of the tray.

[0014] In one embodiment, the protective film positioning element is located on the line of symmetry of the short side of the tray.

[0015] In one embodiment, the length of the protective film positioning member is a, where 135mm ≤ a ≤ 165mm.

[0016] In one embodiment, the width of the protective film positioning element is b, where 5mm ≤ b ≤ 10mm.

[0017] In one embodiment, the bottom wall of the receiving groove is provided with an alignment groove for installing the protective film positioning member.

[0018] In one embodiment, the inner wall of the receiving groove is provided with a limiting step for installing the screen protector, so that the screen protector is spaced apart from the bottom wall of the receiving groove, and the screen protector is snapped into the limiting step.

[0019] The limiting step is also used to support the equipment to be coated.

[0020] In one embodiment, the tray is detachably mounted to the base.

[0021] In one embodiment, the screen protector includes a film body, a first release film and a second release film respectively attached to opposite sides of the film body, and a pull strip connecting the second release film;

[0022] The first release film is bonded to the protective film positioning member, and the end of the pull strip away from the second release film passes through the pull opening and the pull hole in sequence.

[0023] In one embodiment, the first release film is provided with an auxiliary positioning hole, which is used to align the protective film positioning member.

[0024] In one embodiment, two auxiliary positioning holes are arranged at intervals along the extension direction of the long side of the tray, and the maximum distance between two auxiliary positioning holes is the same as the length of the protective film positioning member. Beneficial effects

[0025] In the technical solution of this application, a protective film positioning component is disposed between the screen protector and the bottom wall of the receiving groove. The protective film positioning component and the screen protector are bonded together, and the protective film positioning component is a flexible component. This allows the screen protector to be pre-supported and positioned in the tray before the application begins. When the consumer begins the application, they only need to place the device to be applied in the receiving groove to achieve precise alignment in one step. This simplifies the application process for consumers, reduces the difficulty of application, and improves the success rate and adhesion quality of the application.

[0026] In addition, by utilizing the flexible properties of the protective film positioning component, the screen protector is pressed firmly onto the screen of the device to be covered after the application process begins, which helps reduce the formation of air bubbles and provides a buffer for the adhesion of the screen protector and the screen. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application 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 only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 is a schematic diagram of an embodiment of the film application device provided in this application;

[0029] Figure 2 is a schematic diagram of the film application device and the equipment to be applied in Figure 1;

[0030] Figure 3 is a schematic diagram of the assembly of the tray and screen protector in Figure 1;

[0031] Figure 4 is a schematic diagram of the connection between the screen protector and the release film at point A in Figure 3;

[0032] Figure 5 is a cross-sectional view of the tray and screen protector in Figure 3;

[0033] Figure 6 is a cross-sectional view at point B in Figure 5;

[0034] Figure 7 is an exploded view of the protective film positioning component and the tray;

[0035] Figure 8 is a schematic diagram of the parameters of the protective film positioning component;

[0036] Figure 9 is a schematic diagram of the assembly of the protective film positioning component and the first release film;

[0037] Figure 10 is an explosion diagram of the protective film positioning component and the first release film in Figure 9.

[0038] Explanation of icon numbers:

[0039] 11. Top cover; 12. Base; 121. Pull-out hole;

[0040] 20. Tray; 201. Receiving slot; 202. Clearance notch; 203. Pull-out opening; 21. Chassis; 211. Alignment slot; 212. Long side; 213. Short side; 22. Limiting frame; 23. Limiting step; 231. Abutment surface; 232. Limiting surface; 233. Supporting surface; 24. Release film connector; 25. Protective film positioning component;

[0041] 30. Screen protector; 31. Film body; 32. First release film; 321. Auxiliary positioning hole; 33. Second release film; 331. Protruding part; 34. Pull strip;

[0042] 100. Equipment to be coated with film.

[0043] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Embodiments of the present invention

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0045] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0046] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0047] Currently, the screen protector device and the screen protector 30 are relatively independent. During their use, consumers need to complete the positioning to ensure successful application. Typically, the screen protector 30 is fixed to the screen protector device by the protruding part 331 of the release film away from the mobile terminal device. However, due to the small effective fixing area, corresponding support blocks are often required for auxiliary support. This increases the number of parts and cannot reliably guarantee the alignment effect between the screen protector 30 and the screen, which can easily affect the bonding quality and the success rate of application.

[0048] To address the aforementioned technical problems, this application proposes a film-applying device to improve the adhesion quality of the film and thereby increase the success rate of film application.

[0049] Please refer to Figures 1 to 10. In one embodiment of this application, the screen protector device includes a top cover 11, a base 12, a tray 20, a screen protector 30, and a screen protector positioning member 25. The top cover 11 is detachably mounted on the base 12, and the base 12 has a pull-out hole 121. The tray 20 is mounted on the base 12, and the tray 20 has a receiving groove 201 and a pull-out opening 203 that engages with the pull-out hole 121. The screen protector 30 is built into the receiving groove 201. The screen protector positioning member 25 is disposed on the bottom wall of the receiving groove 201, and the screen protector positioning member 25 is bonded to the screen protector 30. The screen protector positioning member 25 is a flexible component.

[0050] In the technical solution of this application, the protective film positioning component 25 is disposed between the screen protective film 30 and the bottom wall of the receiving groove 201. The protective film positioning component 25 and the screen protective film 30 are bonded together, and the protective film positioning component 25 is a flexible component. This allows the screen protective film 30 to be pre-supported and positioned in the tray 20 before the film application begins. When the consumer begins to apply the film, they only need to place the device to be applied 100 in the receiving groove 201 to achieve accurate alignment of the film in one step. This simplifies the film application process for consumers, helps to reduce the difficulty of film application, and improves the success rate and bonding quality of film application.

[0051] In addition, by utilizing the flexible properties of the protective film positioning member 25, the screen protective film 30 is pressed onto the screen of the device 100 to be covered after the film application begins, which helps to reduce the formation of air bubbles. At the same time, it can provide a buffer for the adhesion of the screen protective film 30 and the screen.

[0052] It should be noted that the screen protector is used to apply a screen protector to the screen of the device 100 to be protected. The device 100 to be protected can be a mobile terminal device with a specific shape, such as a mobile phone or tablet. The film body 31 used is often a tempered glass film, but it can also be a hydrogel film.

[0053] The upper cover 11 is detachably mounted on the base 12, meaning that the upper cover 11 can be rotatably connected to one side of the base 12, or the upper cover 11 and the base 12 can be separate. The base 12 has a receiving cavity with an opening facing the upper cover 11 for receiving the tray 20, thereby protecting the tray 20 and the screen protector 30 when transporting the film application device. During the film application process, after the upper cover 11 is closed, it can protect the tray 20, the screen protector 30, and the device 100 to be applied. The aforementioned side can be the long side 212 or the short side 213 of the base 12, and the long side 212 and the short side 213 are arranged at an angle.

[0054] The tray 20 includes a base 21 and a limiting frame 22 disposed on the base 21. The limiting frame 22 surrounds the base 21 to form a receiving groove 201, and has a clearance notch 202 and a pull-out opening 203 disposed opposite to each other. The receiving groove 201 is used to install and receive the screen protector 30 and the device 100 to be applied. The clearance notch 202 is used to avoid the pull strip 34 of the screen protector 30 and to provide an installation position for the second release film 33 to fix the screen protector 30. The pull-out opening 203 is used to allow the pull strip 34 of the screen protector 30 to extend and to align with the pull hole 121 of the base 12, so that the pull strip 34 extends out of the film application device, making it convenient for the consumer to apply force to the pull strip 34. The clearance notch 202 and / or pull-out opening 203 can be formed on the entire short side 213 of the receiving groove 201 (limiting frame 22), or on a part of the short side 213 of the receiving groove 201. For example, the corresponding clearance notch 202 or pull-out opening 203 can be formed in the central area of ​​the short side 213 of the receiving groove 201.

[0055] By using the protective film positioning component 25 to bond the screen protector 30, the screen protector 30 is supported while being positioned on the tray 20. This approach offers advantages over existing technologies where consumers rely on positioning posts at the clearance notch 202 on the tray 20 to fix the protruding part of the first release film 32 of the screen protector 30. The receiving groove 201 has a larger mounting surface, allowing for the installation of different sized protective film positioning components 25 according to support requirements. This ensures the stability of the screen protector 30 on the tray 20 and improves production convenience. Furthermore, the protective film positioning component 25 and the screen protector 30 can be bonded together. During production, algorithms can be used to confirm the installation position of the screen protector 30 on the tray 20, achieving pre-positioning assembly through bonding. This facilitates precise alignment for consumers during application, simplifying the application process, reducing difficulty, and improving the success rate and bonding quality.

[0056] In the embodiments of this application, the protective film positioning member 25 includes an elastic body, and the screen protective film 30 and the bottom wall of the receiving groove 201 are respectively bonded to opposite sides of the elastic body. That is, the protective film positioning member 25 and the screen protective film 30 are bonded together, and the protective film positioning member 25 is bonded to the bottom wall of the receiving groove 201. This connection is simple and convenient, which facilitates the improvement of the assembly efficiency between the tray 20 and the protective film positioning member 25, and between the protective film positioning member 25 and the screen protective film 30, thereby improving the production efficiency of the film application device.

[0057] In one embodiment of this application, the elastic body is made of any one of foam, rubber, or silicone to reliably provide support and cushioning during the film application process, thereby reducing the risk of functional failure.

[0058] In another embodiment of this application, the protective film positioning member 25 has self-adhesive properties on both sides and elasticity in the middle, and the protective film positioning member is a double-sided foam adhesive.

[0059] Referring to Figure 8, in the embodiment of this application, the protective film positioning member 25 extends along the extension direction of the long side 212 of the tray 20 and is located on the symmetry line of the short side 213 of the tray 20. In this way, the protective film positioning member 25 is reasonably supported and positioned. On the one hand, because the protective film positioning member 25 is long enough, there is a large contact area and effective length between the protective film positioning member 25 and the screen protector 30. This can further improve the installation stability of the screen protector 30 in the tray 20 and reliably remove air bubbles during the film application process, thus improving the bonding quality. On the other hand, because the protective film positioning member 25 is located on the symmetry line of the short side 213 of the tray 20, that is, close to the middle area of ​​the screen protector 30 and the tray 20, the pressing force generated during the film application process can be evenly diffused from the middle outwards, ensuring better bonding quality at each position. However, in other embodiments, multiple protective film positioning members 25 may be arranged, and each protective film positioning member 25 may be arranged at intervals, that is, arranged along the extension direction of the long side 212 or the short side 213, or arranged in a cross pattern.

[0060] The length of the protective film positioning component 25 mainly depends on the specific length of the screen protector 30 (the screen of the device 100 to be covered) in that direction. The width of the protective film positioning component 25 mainly depends on the installation stability of the screen protector 30 on the tray 20 and the overall cost. In the embodiments of this application, the length of the protective film positioning component 25 is a, 135mm≤a≤165mm, and / or the width of the protective film positioning component 25 is b, 5mm≤b≤10mm, in order to ensure the installation stability of the screen protector 30 in the tray 20 and to provide reliable support and cushioning force in the future.

[0061] The specific length of the protective film positioning member 25 is less than the specific length of the screen protector 30, and the specific width of the protective film positioning member 25 is also less than the specific width of the screen protector 30. To ensure reliable adhesion strength, support, and cushioning between the screen protector 30 and the protective film positioning member 25, the width and length of the protective film positioning member 25 can be minimized. This avoids adhesion between the adhesive surface of the protective film positioning member 25 that is too long or too wide and adjacent structures or impurities, and also avoids affecting the film removal effect due to an excessively large connecting surface, or affecting the support and cushioning effect due to an excessively small connecting surface. It also helps to save costs. The specific values ​​for the length of the protective film positioning member 25 can be 135mm, 140mm, 150mm, 155mm, 160mm, 165mm, etc. Of course, in other embodiments, the length of the protective film positioning member 25 can also be 130mm or 170mm. The specific values ​​for the width of the protective film positioning member 25 can be 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc. Of course, in other embodiments, the length of the protective film positioning member 25 may also be 4 mm or 11 mm.

[0062] Referring to Figure 7, in the embodiments of this application, the bottom wall of the receiving groove 201 may also be provided with an alignment groove 211 for mounting the protective film positioning member 25. It is understood that when the protective film positioning member 25 is pre-fixed to the screen protector 30, alignment between the protective film positioning member 25 and the alignment groove 211 helps improve the installation efficiency and accuracy of the screen protector 30. When the protective film positioning member 25 is pre-fixed in the receiving groove 201, alignment between the protective film positioning member 25 and the alignment groove 211 helps accelerate the installation efficiency of the protective film positioning member 25. Furthermore, by aligning the protective film positioning member 25 with the alignment points on the screen protector 30, rapid alignment and assembly of the screen protector 30 can be achieved, reducing the risk of misalignment between the protective film positioning member 25 and the screen protector 30. The alignment groove 211 is formed by protruding from the perimeter of the chassis 21, and may also be recessed on the surface of the chassis 21 in a direction away from the top cover 11.

[0063] Referring to Figures 2, 3, and 7, in the embodiments of this application, the inner wall of the receiving groove 201 is provided with a limiting step 23 for installing the screen protector 30, so that the screen protector 30 is spaced apart from the bottom wall of the receiving groove 201, and the screen protector 30 is snapped onto the limiting step 23; the limiting step 23 is also used to support the device 100 to be applied. It can be understood that the limiting step 23 is provided on the inner wall of the limiting frame 22, and the limiting step 23 is supported on the edge of the screen protector 30, so that there is space between the screen protector 30 and the bottom wall (base 21) of the receiving groove 201 for the installation of the protective film positioning member 25 and for buffering deformation.

[0064] The limiting steps 23 extend along the sidewall of the receiving groove 201, and multiple steps can be provided at intervals, distributed along the symmetrical line of the long side 212 and at the corner between the long side 212 and the short side 213. Each limiting step 23 includes a limiting surface 232 and an abutment surface 231 arranged at an angle, and a support surface 233 located above the limiting surface 232. The limiting surface 232 faces the sidewall of the receiving groove 201 to limit the installation of the screen protector 30; that is, the limiting surfaces 232 of each limiting step 23 collectively clamp the side of the screen protector 30. The abutment surface 231 faces the opening of the receiving groove 201 to support the screen protector 30, ensuring that the screen protector 30 and the bottom wall of the receiving groove 201 are aligned. The spacing is set; the support surface 233 faces the opening of the receiving groove 201 to support the device 100 to be applied, and the distance between the support surface 233 and the contact surface 231 is greater than or equal to the thickness of the screen protector 30, so that before the film application action is performed, there is no mutual squeezing between the screen and the screen protector 30, that is, the screen and the screen protector 30 are set with a small gap or in contact; after the film application action is performed (force is applied to the device 100 to be applied and the screen protector 30), the self-adhesive properties of the screen protector 30 are used in conjunction with the film application action to achieve the process of bonding and air release, so as to complete the film application in one go, so that the film body 31 is accurately attached to the screen of the device 100 to be applied.

[0065] In the embodiments of this application, since the tray 20 is prone to deformation during use and is a consumable, in the embodiments of this application, the tray 20 is detachably installed on the base 12 to facilitate the replacement of the tray 20. When the screen protector needs to be applied again, the user can choose to directly replace the tray 20 and the screen protector 30 as a whole without replacing the entire screen protector device, thereby reducing the user's screen protector application cost.

[0066] Please refer to Figures 4 to 6. In the embodiments of this application, the screen protector 30 includes a film body 31, a first release film 32 and a second release film 33 respectively attached to opposite sides of the film body 31, and a pull strip 34 connecting the second release film 33; the first release film 32 is bonded to the protective film positioning member 25, and the end of the pull strip 34 away from the second release film 33 passes through the pull opening 203 and the pull hole 121 in sequence.

[0067] Before applying the screen protector, the protective film positioning piece 25 and the first release film 32 are bonded together. This ensures the support of the screen protector 30 and positions the screen protector 30 on the tray 20. After the application begins, the pull strip 34 extends out of the application device through the pull hole 121. By pressing the base 12 and the top cover 11, the consumer can bring the screen and the screen protector 30 into contact. At the same time, the second release film 33 can be peeled off by pulling the strip 34 (or, to make it convenient for the consumer to peel off the second release film 33 by pulling the strip 34, and at the same time press the base 12 and the top cover 11 to bring the screen and the screen protector 30 into contact), thus achieving quick and accurate application of the screen protector.

[0068] As shown in Figures 9 and 10, in the embodiments of this application, the first release film 32 is provided with an auxiliary positioning hole 321. The auxiliary positioning hole 321 is used to align with the protective film positioning member 25. This allows for alignment between the auxiliary positioning hole 321 and the protective film positioning member 25, improving the alignment accuracy and efficiency between the screen protector 30 and the protective film positioning member 25. Furthermore, this improves the assembly position of the screen protector 30 on the tray 20, ensuring accurate alignment between the screen protector 30 and the screen of the device 100 to be applied, thus improving the film application quality. Of course, the alignment groove 211 on the tray 20 and the protective film positioning member 25 also help to further improve alignment efficiency, increase the production efficiency of the film application device, and improve the film application quality.

[0069] In this embodiment, two auxiliary positioning holes 321 are arranged at intervals along the extending direction of the long side 212 of the tray 20. The maximum distance between two auxiliary positioning holes 321 is the same as the length of the protective film positioning member 25. That is, the two ends of the protective film positioning member 25 are aligned with the two auxiliary positioning holes 321 respectively to ensure alignment accuracy. The protective film positioning member 25 is fixed to the first release film 32, covering the two auxiliary positioning holes 321. Of course, in other embodiments, the maximum distance between two auxiliary positioning holes 321 may be less than the length of the protective film positioning member 25.

[0070] The auxiliary positioning hole 321 is a positioning hole formed on the first release film 32, and the shape of the positioning hole includes, but is not limited to, crescent shape, circle, and square.

[0071] In one embodiment, to prevent the release film facing the mobile terminal device from easily separating from the film body 31 under external force (before the film is applied), causing dust and other impurities to enter the edge of the adhesive surface of the screen protector 30, resulting in insufficient adhesion at the edges of the screen protector 30 and causing bubbles, white edges, etc., affecting the bonding quality and the success rate of the film application, in one embodiment of this application, the pull strip 34 extends from the clearance notch 202 toward the pull opening 203, wherein the second release film 33 extends at least partially from the end of the film body 31, and the extended portion 331 of the second release film 33 is connected to the clearance notch 202. When the pull strip 34 is subjected to tension, the second release film 33 can gradually separate from the film body 31 in the direction from the clearance notch 202 toward the pull opening 203.

[0072] The second release film 33 is fixed to the tray 20 through its protruding portion 331, ensuring that the edges of the second release film 33 and the film body 31 are always tightly adhered before the pull strip 34 is subjected to tension (before the film is applied). This reduces the risk of bubbles, white edges, etc., appearing after the screen protector 30 is applied due to dust and other impurities entering the edge of the film body 31, and helps to improve the bonding quality and the success rate of film application.

[0073] The extended portion 331 of the second release film 33 extends toward the clearance notch 202 and is fixed at the clearance notch 202, thereby restraining the separation tendency of the second release film 33 relative to the film body 31 in the direction of the clearance notch 202 toward the pull-out opening 203, reliably ensuring the tight adhesion between the second release film 33 and the film body 31. Furthermore, when the pull bar 34 is subjected to tension, the extended portion 331 of the second release film 33 first overcomes and separates from the clearance notch 202. Under the further tension of the pull bar 34, the second release film 33 and the film body 31 can gradually separate in the direction of the clearance notch 202 toward the pull-out opening 203, thereby completing the film application operation in which the film body 31 is gradually and completely applied to the screen of the film application device 100. The connection between the first release film 32 and the protective film positioning component 25 further positions the screen protector 30 on the tray 20, which facilitates the alignment accuracy between the screen protector 30 and the screen, thereby making it easier for consumers to accurately align the screen protector in one go. This simplifies the application process, reduces the difficulty of applying the screen protector, and improves the success rate and adhesion quality.

[0074] It should be emphasized that the clearance notch 202 is used to avoid the protruding part 331 of the second release film 33 and part of the pull strip 34. On the one hand, it can ensure that the protruding part 331 is fixed on the clearance notch 202, increase the effective contact area between the protruding part 331 and the clearance notch 202, and ensure the reliable fixation of the second release film 33 on the tray 20. On the other hand, it can play a positioning role to a certain extent, help determine the installation position of the second release film 33 and even the screen protector 30 on the tray 20, and speed up the positioning efficiency.

[0075] The protruding portion 331 of the second release film 33 protrudes from the side of the film body 31 away from the pull-out opening 203 and extends towards the clearance notch 202. In order to fully utilize the tension applied to the pull strip 34, in this embodiment, the protruding portion 331 is bent and extends towards the pull-out opening 203. One end of the protruding portion 331 is connected to the pull strip 34, causing the pull strip 34 to extend in the direction from the clearance notch 202 towards the pull-out opening 203. This helps to efficiently overcome the connecting force between the protruding portion 331 of the second release film 33 and the clearance notch 202, thereby improving the film application efficiency. The connection method between the protruding portion 331 and the pull strip 34 includes, but is not limited to, integral molding, bonding, and embedding.

[0076] Referring to Figures 3 to 6, in the embodiments of this application, the film application device further includes a release film connector 24. The release film connector 24 is installed at the clearance notch 202, and the release film connector 24 adheres to the protruding portion 331 of the second release film 33. The connection is simple and convenient, which facilitates the improvement of the assembly efficiency of the tray 20 and the screen protector 30, thereby improving the production efficiency of the film application device. However, in other embodiments, the release film connector 24 and the protruding portion 331 of the second release film 33 are inserted into each other.

[0077] In the embodiments of this application, the release film connector 24 is bonded to the bottom surface of the clearance notch 202. The bonding strength between the release film connector 24 and the second release film 33 is less than the bonding strength between the release film connector 24 and the bottom surface of the clearance notch 202. Thus, under the pulling force of the tension strip 34, the second release film 33 separates from the release film connector 24 first, ensuring the smoothness and reliability of the separation of the second release film 33 from the film body 31 under subsequent pulling force. This avoids the release film connector 24 moving together with the second release film 33 due to its initial separation, which would affect the separation of the second release film 33 from the film body 31. However, in other embodiments, the clearance notch 202 is provided with a slot for the release film connector 24 to be inserted, and the connection between the release film connector 24 and the clearance notch 202 is achieved through interference fit or other connection methods. More specifically, the release film connector 24 is a flexible component.

[0078] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A film application device, wherein, include: A top cover and a base, wherein the top cover is foldably mounted on the base, and the base is provided with a pull-out hole; A tray is mounted on the base, the tray having a receiving groove and a pull-out opening for engaging with the pull-out hole; The screen protector is built into the receiving slot; as well as A protective film positioning component is disposed on the bottom wall of the receiving groove. The protective film positioning component is bonded to the screen protective film and is a flexible component.

2. The film application device as described in claim 1, wherein, The protective film positioning component includes an elastic body, and the screen protective film and the bottom wall of the receiving groove are respectively bonded to opposite sides of the elastic body.

3. The film application device as described in claim 2, wherein, The elastic body is made of any one of foam, rubber, or silicone. Alternatively, the protective film positioning element is double-sided foam adhesive.

4. The film application device as described in claim 1, wherein, The protective film positioning element extends along the long side of the tray.

5. The film application device as described in claim 4, wherein, The protective film positioning element is located on the line of symmetry of the short side of the tray.

6. The film-applying device as described in claim 4, wherein, The length of the protective film positioning element is a, where 135mm ≤ a ≤ 165mm.

7. The film application device as described in claim 4, wherein, The width of the protective film positioning element is b, where 5mm ≤ b ≤ 10mm.

8. The film application device as claimed in claim 1, wherein, The bottom wall of the receiving groove is provided with an alignment groove for installing the protective film positioning component.

9. The film application device as claimed in claim 1, wherein, The inner wall of the receiving groove is provided with a limiting step for installing the screen protector, so that the screen protector is spaced apart from the bottom wall of the receiving groove, and the screen protector is snapped into the limiting step. The limiting step is also used to support the equipment to be coated.

10. The film application device as claimed in claim 1, wherein, The tray is detachably mounted on the base.

11. The film application device according to any one of claims 1 to 10, wherein, The screen protector includes a film body, a first release film and a second release film respectively attached to opposite sides of the film body, and a pull strip connecting the second release film; The first release film is bonded to the protective film positioning member, and the end of the pull strip away from the second release film passes through the pull opening and the pull hole in sequence.

12. The film application device as claimed in claim 11, wherein, The first release film is provided with an auxiliary positioning hole, which is used to align the protective film positioning element.

13. The film application device as claimed in claim 12, wherein, The auxiliary positioning holes are arranged in two pairs at intervals along the long side of the tray, and the maximum distance between the two auxiliary positioning holes is the same as the length of the protective film positioning element.

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