Film pasting device

Abstract

The utility model is suitable for the field of electronic product accessories, and provides a film pasting device which is used for pasting a protective film on an electronic product, the protective film is covered with a positioning film, the film pasting device comprises a base, a sliding part in sliding connection with the base and a positioning structure used for positioning the protective film, the base is provided with a containing groove for containing the electronic product, and the positioning structure is arranged in the containing groove. The positioning structure is used for positioning the positioning film, and when the electronic product is placed in the accommodating groove and the positioning film is positioned on the positioning structure, the sliding piece slides to paste the protective film on the electronic product; the positioning structure comprises a first positioning piece and a second positioning piece which are arranged on the base, the first positioning piece and the second positioning piece are arranged in the sliding direction of the sliding piece in a spaced mode, and an avoiding hole is formed in the position, at the first positioning piece, of the base so that the positioning film can penetrate through the avoiding hole to be arranged in the first positioning piece in a sleeved mode. The situation that the positioning film is separated from the positioning structure can be effectively avoided.

Description

Technical Field

[0001] The present application belongs to the field of mobile phone accessories, and in particular relates to a film applicator. Background Art

[0002] To improve the quality and efficiency of film application for electronic products like mobile phones and watches, film applicators have emerged. Taking a mobile phone film applicator as an example, the protective film is coated with positioning film and release film on both sides. The applicator generally consists of a base, a slider that slidably engages the base, and a pressing member on the slider. The phone is placed on the base, and the protective film is positioned on the base above the phone using the positioning film. After the release film is removed, the protective film is exposed and faces the electronic product. The slider is then slid, and the pressing member presses the protective film onto the phone screen.

[0003] The existing method for securing the positioning film and the base is to provide positioning posts on either side of the base where the phone is placed, and to provide positioning holes on the positioning member of the positioning film. Positioning and securing are accomplished by inserting the positioning holes on either side of the positioning film into the corresponding positioning posts. With this setup, the positioning film inserted into the positioning posts achieves static positioning and securement. However, during the film application process, the positioning film is subject to a force from the pressing member, which has a downward component. This force can easily cause the middle portion of the positioning film to move upward at the end where the positioning holes are located, disengaging from the positioning posts and causing positioning failure. Utility Model Content

[0004] The purpose of the present application is to overcome the deficiencies of the above-mentioned prior art and to provide a film applicator, which aims to solve the problem that the protective film of the existing film applicator is easily separated from the base during film application.

[0005] The present application provides a film applicator for attaching a protective film to an electronic product. The protective film is covered with a positioning film and includes a base, a sliding member slidably connected to the base, and a positioning structure for positioning the protective film. The base is provided with a receiving groove for the electronic product to be placed in, and the positioning structure is used to position the positioning film. When the electronic product is placed in the receiving groove and the positioning film is positioned on the positioning structure, the sliding member slides to apply the protective film to the electronic product.

[0006] The positioning structure includes a first positioning member and a second positioning member provided on the base. The first positioning member and the second positioning member are spaced apart along the sliding direction of the sliding member. The base is provided with an avoidance hole at the first positioning member for the positioning film to pass through the avoidance hole and be inserted into the first positioning member.

[0007] Optionally, the accommodating groove is provided on the upper surface of the base, and the first positioning member and the second positioning member are respectively located at the front and rear sides of the accommodating groove;

[0008] The first positioning member is connected to the base and extends downward, and the protective film can pass through the avoidance hole and be inserted upward into the first positioning member.

[0009] Optionally, the avoidance hole is opened on the rear side of the first positioning member.

[0010] Optionally, the accommodating groove is provided on the upper surface of the base, and the first positioning member and the second positioning member are respectively located at the front and rear sides of the accommodating groove;

[0011] The first positioning member is connected to the base and extends forward, and the avoidance hole is located on the front side of the first positioning member and extends to the left and right sides of the first positioning member.

[0012] Optionally, the film applicator further comprises an elastic member protruding from the base, the elastic member is elastically connected to the base, and the first positioning member is provided on the elastic member;

[0013] When the electronic product is placed in the receiving groove and the protective film is positioned on the positioning structure, the sliding member slides through the elastic member to reach the receiving groove and sticks the protective film on the electronic product.

[0014] Optionally, the first positioning member does not protrude from the upper surface of the elastic member.

[0015] Optionally, the avoidance hole is opened in the elastic member, and the first positioning member is connected to a hole wall of the avoidance hole close to the accommodating groove.

[0016] Optionally, the sliding member is provided with a scraper, and the scraper is used to attach the protective film to the electronic product when the sliding member slides; both ends of the scraper are bent away from the sliding direction of the sliding member.

[0017] Optionally, the sliding member is provided with a roller, and the roller is used to attach the protective film to the electronic product when the sliding member slides.

[0018] Optionally, the film applicator is used for applying films to mobile phones or watches.

[0019] The film applicator provided by the present application improves the structure of the first positioning member and its assembly relationship with the positioning film. The positioning hole of the positioning film needs to pass through the base and then be inserted into the first positioning member. After being inserted, the main body / middle part of the positioning film is located above the base, and the front part where the positioning hole is located is at least partially located below the base. When the main body / middle part of the positioning film is pressurized, it has a tendency to move upward on the front side where the positioning hole is located. The position where the first positioning member is connected to the base can block and limit the upward movement of the positioning hole, thereby effectively avoiding the positioning failure caused by the positioning hole being separated from the first positioning member. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is the structure of the film applicator provided by this application Figure 1 ;

[0022] Figure 2 yes Figure 1 Schematic diagram of the disassembly of the structure;

[0023] Figure 3 yes Figure 2 A partial magnified view of the structure;

[0024] Figure 4 This is the structure of the film applicator provided by this application Figure 2 ;

[0025] Figure 5 yes Figure 4 Schematic diagram of the disassembly of the structure;

[0026] Figure 6 yes Figure 5 A magnified view of part B in the structure;

[0027] Figure 7 yes Figure 5 Schematic diagram of the structure from another angle;

[0028] Figure 8 It is a schematic diagram of the structure of the scraper in the embodiment of the present application, which is a top view.

[0029] Description of Figure Numbers:

[0030] 100, film applicator; 10, base; 101, accommodating groove; 102, avoidance hole; 20, sliding member; 201, fixing groove; 31, first positioning member; 32, second positioning member; 40, scraper; 41, straight segment; 42, arc segment; 50, elastic member. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0032] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0033] It should also be noted that the directional terms such as left, right, up and down in the embodiments of the present application are merely relative concepts or are based on the normal use status of the product, and should not be considered as restrictive.

[0034] Example 1

[0035] The present application provides a film applicator 100 for attaching a protective film to an electronic product, which may be a mobile phone, a tablet, a watch, etc. This embodiment is described by taking a mobile phone as an example.

[0036] The film applicator 100 is used in conjunction with a film assembly. The film assembly consists of a protective film and positioning films and release films covering opposite sides of the protective film. The release film is primarily used for dust protection. The positioning film not only provides dust protection but also provides positioning. The positioning film extends over the protective film and has positioning holes on its ends. During film application, the positioning holes are inserted into the positioning structure provided with the film applicator 100 to achieve positioning of the protective film. The membrane assembly can use existing membrane assembly structures and is not limited here.

[0037] Please refer to Figure 1 or Figure 4 The film applicator 100 includes a base 10, a sliding member 20 slidingly connected to the base 10, and a positioning structure for positioning the protective film. The base 10 is provided with a receiving groove 101 for placing the electronic product. The positioning structure is used to position the positioning film. When the electronic product is placed in the receiving groove 101 and the positioning film is positioned on the positioning structure, the sliding member 20 slides to apply the protective film to the electronic product.

[0038] The slider 20 is slidably connected to the base 10 and is provided with a pressure member. This pressure member is a scraper 40 or a roller. The slider 20 moves linearly. For ease of description, the movement direction of the slider 20 is defined as from front to back. A receiving groove 101 is defined on the upper surface of the base 10.

[0039] During use, the phone is placed on the receiving groove 101 of the base 10. The protective film is positioned on the positioning structure and above the phone using the positioning film. After the release film is removed, the protective film is exposed and faces the electronic product. The sliding member 20 is then slid, and the pressing member presses the protective film onto the phone screen.

[0040] In this embodiment, please refer to Figure 2 or Figure 5The positioning structure includes a first positioning member 31 and a second positioning member 32 provided on the base 10. The first positioning member 31 and the second positioning member 32 are arranged at intervals along the sliding direction of the sliding member 20. The base 10 is provided with an avoidance hole 102 at the first positioning member 31 for the positioning film to pass through the avoidance hole 102 and be inserted into the first positioning member 31.

[0041] In conjunction with the above definition of directions, the first positioning member 31 and the second positioning member 32 are arranged in a front-to-back relationship. More specifically, the first positioning member 31 and the second positioning member 32 are arranged on the front and rear sides of the accommodating groove 101. The first positioning member 31 engages with the positioning hole on the front side of the positioning film to achieve horizontal positioning, and the second positioning member 32 engages with the positioning hole on the rear side of the positioning film to achieve horizontal positioning.

[0042] This solution improves the structure of the first positioning member 31 and its assembly relationship with the positioning membrane. Specifically, the positioning hole of the positioning membrane needs to pass through the base 10 and then be inserted into the first positioning member 31. After the insertion, the main body / middle part of the positioning membrane is located above the base 10, while the front part where the positioning hole is located is at least partially located below the base 10. When the main body / middle part of the positioning membrane is under pressure, it has a tendency to move upward on the front side where the positioning hole is located. The position where the first positioning member 31 and the base 10 are connected can block and limit the upward movement of the positioning hole, thereby effectively avoiding the positioning failure caused by the positioning hole being separated from the first positioning member 31.

[0043] It should be noted that, because the film is applied from front to back, the front end of the positioning film is prone to warping, resulting in the positioning hole being separated from the positioning structure and causing the positioning to fail, which is the problem that this solution aims to solve. Specifically, the positioning film is prone to warping upward at the front positioning hole during the film application process and being separated from the first positioning member 31. Once separated, the pressure member pushes the positioning film backward during the backward movement of the slider 20, causing the protective film to deviate from the predetermined position, thereby causing the film to fail to be applied. Regarding the rear end of the positioning film, under normal circumstances, during the film application process, the positioning film is restricted by the first positioning member 31, the sticky force of the mobile phone screen, and the pressure of the pressure member, so the rear end positioning hole is not likely to be separated from the second positioning member 32. Even if it is separated, the sticky force of the mobile phone screen will basically prevent the rear end positioning hole from deviating from its original position. Therefore, this solution only improves the structure of the first positioning member 31 and its relationship with the positioning film. The second positioning member 32 can retain its original structure or be improved with an anti-detachment design, which is not limited here.

[0044] In this embodiment, please refer to Figure 3 The first positioning member 31 is connected to the base 10 and extends downward, and the protective film can pass through the avoidance hole 102 and be inserted upward into the first positioning member 31.

[0045] In this embodiment, the first positioning member 31 is a columnar structure, which is connected to the base 10 and extends downward. When in use, the positioning film needs to pass through the avoidance hole 102, and then the positioning hole is inserted into the first positioning member 31 from bottom to top.

[0046] In the illustrated structure, the avoidance hole 102 is provided on the rear side of the first positioning member 31. During positioning and assembly, the front end of the positioning film passes through the avoidance hole 102 located on the rear side of the first positioning member 31, then continues forward until the positioning hole reaches directly below the first positioning member 31. The positioning hole is then inserted upward onto the first positioning member 31, completing the sleeve connection between the positioning film and the first positioning member 31. This arrangement simplifies assembly and improves film application efficiency.

[0047] In another embodiment, the avoidance hole 102 is formed on the front side of the first positioning member 31. During positioning and assembly, the front end of the positioning film passes over the first positioning member 31 and passes through the bottom plate through the avoidance hole 102. The front end then folds back until the positioning hole reaches directly below the first positioning member 31. The positioning hole is then inserted upward onto the first positioning member 31, thus achieving the sleeved connection between the positioning film and the first positioning member 31.

[0048] In another embodiment of the present application, please refer to Figure 2 The film applicator 100 further includes an elastic member 50 protruding from the base 10 , the elastic member 50 is elastically connected to the base 10 , and the first positioning member 31 is disposed on the elastic member 50 .

[0049] When the electronic product is placed in the receiving groove 101 and the protective film is positioned on the positioning structure, the sliding member 20 slides through the elastic member 50 to reach the receiving groove 101 and covers the protective film on the electronic product.

[0050] The elastic member 50 protrudes from the base 10. As the slider 20 moves from front to back, the pressing surface of the pressing member, which presses against the protective film during film application, is raised at the elastic member 50. As the sliding member 20 continues to move backward, it naturally lands on the positioning film from a position higher than the phone screen. The placement of the elastic member 50 ensures a smooth transition between film application and film application. After the pressing member passes over the first positioning member 31 and lands on the positioning film, it maintains its pressure against the positioning film.

[0051] In another embodiment of the present application, the rear surface of the elastic member 50 is tilted backward to form a guide surface that extends toward the receiving groove 101 and slopes downward. The front surface of the elastic member 50 is tilted forward to form a climbing surface that rises backward. The highest point of the elastic member 50 is between the climbing surface and the guide surface, and the highest point is preferably a flat or curved surface.

[0052] When the sliding member 20 moves from front to back and passes through the climbing surface, the elastic member 50 undergoes elastic deformation, which is manifested as: the climbing surface moves downward until the pressing member reaches the highest point of the elastic member 50. Then, the elastic member 50 gradually returns to its original position until the pressing member leaves the elastic member 50, which is manifested as: the guiding surface gradually moves upward until it returns to its original position.

[0053] The elastic member 50 and the arrangement of the lifting surface and the guiding surface thereon make the pressing member move to the top of the protective film slowly and smoothly.

[0054] In this embodiment, the first positioning member 31 does not protrude from the upper surface of the elastic member 50 , so as to prevent the first positioning member 31 from hindering the movement of the sliding member 20 and the pressing member.

[0055] In this embodiment, the elastic member 50 and the base 10 are integrally injection molded from the same material. The front end of the elastic member 50 is connected to the base 10, while the rear end and left and right ends are separated from the base 10 to form a space for the elastic member 50 to deform and release stress.

[0056] In one embodiment, the gap between the rear end of the elastic member 50 and the base 10 can be appropriately enlarged to form a clearance hole 102 for the positioning film to pass through. In this case, the first positioning member 31 can be formed on the hole wall of the clearance hole 102 facing away from the accommodating groove 101, that is, on the rear end side of the elastic member 50.

[0057] In this embodiment, please refer to Figure 3 The elastic member 50 has a separate escape hole 102 formed therein, and the first positioning member 31 is connected to the wall of the escape hole 102 facing away from the accommodating groove 101. During assembly, the positioning film passes through the escape hole 102, through the base 10, and then continues forward to the positioning hole to reach directly below the first positioning member 31. The positioning hole is then inserted upward onto the first positioning member 31, completing the sleeve connection between the positioning film and the first positioning member 31.

[0058] In another embodiment, please refer to Figure 6 The first positioning member 31 is connected to the hole wall of the avoidance hole 102 facing the accommodating groove 101. During assembly, the positioning film passes forward over the first positioning member 31 and passes through the avoidance hole 102 through the base 10, then folds back backward so that the positioning hole is directly below the first positioning member 31. The positioning hole is then inserted upward onto the first positioning member 31, completing the sleeve connection between the positioning film and the first positioning member 31.

[0059] In another embodiment of the present application, please refer to Figure 7 and Figure 8The pressing member is a scraper 40, and the sliding member 20 defines a fixing groove 201 for securing the scraper 40. The scraper 40 is made of EVA (ethylene-vinyl acetate copolymer), which has high strength and provides strong bending resistance. In other embodiments, the scraper 40 may also be made of other soft materials such as silicone, foam, or a composite material, without limitation herein.

[0060] In another embodiment of the present application, the middle section of the scraper 40 protrudes in the moving direction of the scraper 40. Combined with the above-mentioned direction definition, the middle section of the scraper 40 protrudes backward. Compared with the general flat plate design, the protruding setting of the middle section of the scraper 40 can improve the bending strength of the scraper 40. In addition, combined with the film sticking operation, the middle of the scraper 40 is pressed against the film before the two sides. The air in the middle is squeezed and can be discharged to both sides, and the stress generated by the pressure in the middle can also be released to both sides. The two sides of the protective film are pressed after the air is discharged and the stress is released. This setting can effectively improve the quality of the film sticking and reduce the probability of bubbles.

[0061] In another embodiment of the present application, both ends of the scraper 40 are curved in a direction away from the movement of the slider 20. As the scraper 40 moves from front to back, both ends of the scraper 40 bend forward. Combined with the aforementioned, the curved sides enhance the bending strength of the scraper 40, effectively improving the quality of film application and reducing the likelihood of bubbles. This effect is particularly pronounced when applying soft films (as opposed to tempered films) or curved screens.

[0062] It should be noted that for film application on curved screens, the contact surface of the scraper 40 is adapted to the shape of the curved screen. This primarily refers to the fact that, viewed in cross-section, the curved screen's two sides form downwardly curved arcs, and the scraper 40 also bulges downward along these arcs. In this embodiment, the backward curvature of the scraper 40 refers to the fact that, in horizontal projection, the two sides of the scraper 40 curve backward.

[0063] In another embodiment of the present application, the center of the scraper 40 is a straight segment. For film application on curved screens, the center of the scraper 40 is a straight segment, corresponding to the flat surface of the curved screen. The sides of the scraper 40 are curved backwards, corresponding to the curved surfaces on both sides of the curved screen. This configuration can effectively improve film application quality.

[0064] In another embodiment of the present application, please refer to Figure 8 The scraper 40 includes a straight segment 41 and arc segments 42 located at both ends of the straight segment 41 and extending forward. The arc center of the arc segment 42 is located on the side of the arc segment 42 facing the straight segment 41.

[0065] The arc-shaped design on both sides makes the pressure surface of the scraper 40 transition smoothly, effectively avoiding stress concentration. The arc center of the arc segment 42 is located on the side close to the straight segment 41, that is, the arc segment 42 protrudes to both sides instead of being recessed towards the straight segment 41.

[0066] In another embodiment of the present application, the two arc segments 42 are symmetrically arranged. This design allows the scraper 40 to be subjected to balanced forces on both sides, thereby effectively avoiding deflection caused by uneven forces on both sides of the scraper 40.

[0067] Example 2

[0068] The present application provides a film applicator 100 , which differs from the first embodiment in that the specific structure of the first positioning member 31 and the assembly relationship between the first positioning member 31 and the positioning film are different from those in the first embodiment.

[0069] Please refer to Figures 4 to 7 In conjunction with the previous definition of the orientation, the receiving groove 101 is formed on the upper surface of the base 10, and the first positioning member 31 and the second positioning member 32 are located on the front and rear sides of the receiving groove 101. The first positioning member 31 is connected to the base 10 and extends forward. The avoidance hole 102 is located in front of the first positioning member 31 and extends to the left and right sides of the first positioning member 31.

[0070] The first positioning member 31 is a columnar structure that connects to the base 10 and extends forward. With this arrangement, during assembly, the positioning hole of the film must pass over the first positioning member 31 and be located directly in front of it, then be inserted backward onto the first positioning member 31. The connection between the first positioning member 31 and the base 10 limits the upward movement of the first positioning member 31, thereby preventing the positioning hole from dislodging from the first positioning member 31 during film application.

[0071] In this embodiment, the avoidance hole 102 is opened at the front side of the first positioning member 31 and extends to the left and right sides of the first positioning member 31 , so that the positioning hole can be inserted into the first positioning member 31 from the front.

[0072] In the illustrated structure, the first positioning member 31 is a columnar structure, and its cross-section is gradually reduced from the back to the front to improve the convenience of the operation of sleeve connection with the positioning film.

[0073] In another embodiment of the present application, please refer to Figure 7 A reinforcement member is provided under the first positioning member 31, extending to the lower surface of the base 10. This arrangement effectively enhances the structural strength of the first positioning member 31. The reinforcement member is offset from the front end of the first positioning member 31 to provide clearance for the positioning holes to fit. The reinforcement member is located under the first positioning member 31 and the base 10 to minimize interference with the film application process.

[0074] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A film applicator for attaching a protective film to an electronic product, wherein the protective film is covered with a positioning film, characterized in that: The electronic product is placed in the receiving groove, and the positioning structure is used to position the positioning film. When the electronic product is placed in the receiving groove and the positioning film is positioned on the positioning structure, the sliding member slides to apply the protective film to the electronic product. The positioning structure includes a first positioning member and a second positioning member provided on the base. The first positioning member and the second positioning member are spaced apart along the sliding direction of the sliding member. The base is provided with an avoidance hole at the first positioning member for the positioning film to pass through the avoidance hole and be inserted into the first positioning member.

2. The film applicator according to claim 1, characterized in that: The accommodating groove is provided on the upper surface of the base, and the first positioning member and the second positioning member are respectively located at the front and rear sides of the accommodating groove; The first positioning member is connected to the base and extends downward, and the protective film can pass through the avoidance hole and be inserted upward into the first positioning member.

3. The film applicator according to claim 2, characterized in that: The avoidance hole is opened at the rear side of the first positioning member.

4. The film applicator according to claim 1, wherein: The accommodating groove is provided on the upper surface of the base, and the first positioning member and the second positioning member are respectively located at the front and rear sides of the accommodating groove; The first positioning member is connected to the base and extends forward, and the avoidance hole is located on the front side of the first positioning member and extends to the left and right sides of the first positioning member.

5. The film applicator according to claim 1, wherein: The film applicator further includes an elastic member protruding from the base, the elastic member is elastically connected to the base, and the first positioning member is provided on the elastic member; When the electronic product is placed in the receiving groove and the protective film is positioned on the positioning structure, the sliding member slides through the elastic member to reach the receiving groove and sticks the protective film on the electronic product.

6. The film applicator according to claim 5, characterized in that: The first positioning member does not protrude from the upper surface of the elastic member.

7. The film applicator according to claim 5, characterized in that: The avoidance hole is formed in the elastic member, and the first positioning member is connected to a hole wall of the avoidance hole close to the accommodating groove.

8. The film applicator according to claim 1, wherein: The sliding member is provided with a scraper, and the scraper is used to attach the protective film to the electronic product when the sliding member slides; the two ends of the scraper are bent away from the sliding direction of the sliding member.

9. The film applicator according to claim 1, wherein: The sliding member is provided with a roller, and the roller is used to attach the protective film to the electronic product when the sliding member slides.

10. The film applicator according to any one of claims 1 to 9, characterized in that: The film applicator is used for applying films to mobile phones or watches.

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