Film pasting device

Abstract

The embodiment of the utility model provides a film pasting device. The film pasting device comprises a positioning piece, a first release film and a protective film, the positioning piece is provided with a first through hole penetrating in the first direction. The first release film comprises a first connecting part and a second connecting part, the first connecting part is fixedly connected with the second connecting part, the first connecting part is connected with the positioning piece, the second connecting part covers the first through hole, and a vent hole located between the first connecting part and the second connecting part is formed in the first release film; the protective film is contained in the first through hole and bonded with the second connecting part, and at least part of the orthographic projection of the vent hole is located in the orthographic projection range of the protective film in a projection plane perpendicular to the first direction. According to the film pasting device provided by the embodiment of the utility model, the vent holes are formed in the first release film, so that the force required for separating the first release film from the protective film can be reduced, the first release film and the protective film can be separated more conveniently when the film pasting device is used, and the film pasting device is convenient for a user to use.

Description

Technical Field

[0001] This utility model relates to the field of electronic product accessories technology, specifically to a film application device. Background Technology

[0002] To reduce scratches and prevent damage to screens and lenses, people often apply screen protectors to mobile phones and other electronic devices, leading to the development of screen protector application devices. Currently, some larger lens or screen protectors typically require an application aid for alignment. The film is attached to a release liner to be fixed to the application device, but during alignment and pressing, various factors can make it difficult to separate the release liner from the film. Sometimes, the release liner may even pull the film off the screen or lens after it has been applied, causing separation. This makes the application device inconvenient to use. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a film-applying device that facilitates the separation of release film and film sheet.

[0004] The film application device provided in this embodiment of the utility model includes:

[0005] The positioning element is provided with a first through hole extending along a first direction;

[0006] A first release film includes a first connecting part and a second connecting part, the first connecting part and the second connecting part are fixedly connected, the first connecting part is connected to the positioning member, the second connecting part covers the first through hole, and the first release film is provided with a vent hole located between the first connecting part and the second connecting part.

[0007] A protective film is housed in the first through hole and bonded to the second connecting portion. In a projection plane perpendicular to the first direction, at least a portion of the orthographic projection of the vent hole is located within the orthographic projection range of the protective film.

[0008] In some embodiments, in a projection plane perpendicular to the first direction, the portion of the orthographic projection of the vent hole is located outside the orthographic projection range of the protective film; or, the edge of the orthographic projection of the vent hole near the first connection portion coincides with the edge of the orthographic projection portion of the protective film.

[0009] In some embodiments, the vent is arc-shaped or strip-shaped.

[0010] In some embodiments, the area of ​​the portion of the protective film that is bonded to the second connecting portion is greater than or equal to half the area of ​​the protective film.

[0011] In some embodiments, the orthographic projection of the through hole coincides with the orthographic projection of the protective film in a projection plane perpendicular to the first direction.

[0012] In some embodiments, a limiting groove is also included, the limiting groove being located on the side of the first through hole away from the first release film; in a projection plane perpendicular to the first direction, the orthographic projection of the protective film and the first through hole is located within the orthographic projection range of the limiting groove.

[0013] In some embodiments, there are multiple vent holes, and the multiple vent holes are symmetrical about the center of the first vent hole.

[0014] In some embodiments, the film application device further includes a second release film disposed on the side of the protective film opposite to the first release film.

[0015] In some embodiments, the second release film includes a main body and a handle, the main body being connected to the protective film, and the handle being connected to the main body and extending beyond the protective film.

[0016] In some embodiments, a clearance groove is provided on the side of the positioning member opposite to the first release film, and at least a portion of the handle portion is accommodated in the clearance groove.

[0017] The film-applying device provided by this utility model has at least the following beneficial effects: Because there are vent holes on the first release film, an airflow path is formed between the inside of the first vent hole and the outside of the film-applying device. This facilitates airflow from the edge connecting the second connecting part and the protective film to enter between the second connecting part and the protective film, thereby separating the second connecting part and the protective film. This reduces the pressing force required to separate the first release film and the protective film, making the film-applying device easier to use. Simultaneously, the airflow path formed between the inside of the first vent hole and the outside of the film-applying device also reduces the resistance generated by the enclosed gas inside the first vent hole on the movement of the protective film, further reducing the pressing force required. Furthermore, the vent holes on the first release film can divide the first release film into two or more force-bearing parts, causing the two or more force-bearing parts to deform together when subjected to the same force, resulting in greater deformation, which is beneficial for the separation of the first release film and the protective film. The film-applying device provided in this embodiment of the utility model reduces the force required to separate the first release film and the protective film by providing ventilation holes on the first release film, making it more convenient for users to separate the first release film and the protective film during use. Attached Figure Description

[0018] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0019] Figure 1This is a first-view schematic diagram of the overall structure of the film-applying device provided in an embodiment of the present invention.

[0020] Figure 2 yes Figure 1 An exploded view of the film-applying device is shown.

[0021] Figure 3 This is a second-view schematic diagram of the overall structure of another embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of a positioning component provided in one embodiment of the present invention.

[0023] Figure 5 This is a third-view schematic diagram of a portion of the structure of the film-applying device provided in an embodiment of the present invention.

[0024] Figure 6 This is a third-view schematic diagram of the overall structure of the film-applying device provided in an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures

[0026] 10. Positioning component; 11. First through hole; 12. Limiting groove; 13. Clearance groove; 20. First release film; 21. First connecting part; 22. Second connecting part; 23. Vent hole; 24. Third connecting part; 30. Protective film; 40. Second release film; 41. Handle part; 42. Main body part. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices. Embodiments of this utility model Figures 1-6 The Y direction in the diagram indicates the first direction.

[0030] It should also be noted that the division of multiple embodiments in this utility model is only for the convenience of description and should not constitute a special limitation. Features in various embodiments can be combined and referenced in each other without contradiction.

[0031] In related technologies, some larger lens films or screen protectors often require an applicator to assist in alignment. The film is connected to a release liner to be fixed to the applicator. When pressing at the alignment point to apply the film, taking the center of the connection between the film and the release liner as an example, the press causes deformation of the release liner, and the release liner and the film separate from the edge of their connection. However, because the distance that can be pressed down is small and the tension generated by the release liner during pressing is large, the deformation that the release liner can produce is small, making it difficult to separate the release liner from the film, thus making the application device inconvenient to operate.

[0032] This utility model embodiment provides a film application device, see [link to relevant documentation] Figure 1 and Figure 2 The system includes a positioning element 10, a first release film 20, and a protective film 30. The positioning element 10 has a first through hole 11 extending along a first direction; the first release film 20 includes a first connecting portion 21 and a second connecting portion 22, which are fixedly connected. The first connecting portion 21 is connected to the positioning element 10, and the second connecting portion 22 covers the first through hole 11. The first release film 20 has a vent hole 23 located between the first connecting portion 21 and the second connecting portion 22; the protective film 30 is accommodated in the first through hole 11 and is bonded to the second connecting portion 22. In a projection plane perpendicular to the first direction, at least a portion of the orthographic projection of the vent hole 23 is located within the orthographic projection range of the protective film 30.

[0033] The first connecting portion 21 is connected to the positioning member 10, and the second connecting portion 22 covers the first through hole 11. Therefore, it can be understood that the first release film 20 is at least partially disposed on one side of the positioning member 10 along the first direction. The protective film 30 is accommodated in the first through hole 11 of the positioning member 10. Therefore, along the first direction, the size of the first through hole 11 is greater than or equal to the size of the film, which is beneficial for the positioning member 10 to prevent dust and other particles from entering the first through hole 11 and adhering to the protective film 30. The protective film 30 is bonded to the second connecting portion 22, and then fixedly connected to the first connecting portion 21 through the second connecting portion 22. Thus, the protective film 30 is stably connected to the positioning member 10 through the first release film 20, reducing the probability of the protective film 30 falling off from the first through hole 11 before the film application device is used. Since the vent 23 is provided on the first release film 20, and in the projection plane perpendicular to the first direction, at least a portion of the orthographic projection of the vent 23 is located within the orthographic projection range of the protective film 30, which is located inside the first through hole 11, and the second connecting portion 22 is also provided over the first through hole 11, that is, in the projection plane perpendicular to the first direction, at least a portion of the orthographic projection of the vent 23 is also located within the orthographic projection range of the second connecting portion 22.

[0034] Therefore, taking the application of this film applicator for lens film application as an example, the operating principle of this film applicator will be explained. When using the film applicator, the positioning member 10 is placed with the side facing away from the first release film 20 along the first direction towards the lens. That is, the first release film 20 and the lens are located on opposite sides of the positioning member 10 along the first direction. After the positioning member 10 is in place, the portion of the second connecting part 22 covering the first through hole 11 is pressed, causing the first release film 20 to bulge into the first through hole 11, i.e., towards the lens. This, in turn, moves the protective film 30 towards the lens, so that the protective film 30 adheres to the lens. As the protective film 30 moves toward the lens, at the edge where the second connecting part 22 connects to the protective film 30, the portion of the first release film 20 not connected to the protective film 30 forms an angle with the protective film 30, thus tending to separate at the edge where the second connecting part 22 connects to the protective film 30. Since the first release film 20 has a vent 23 located between the first connecting part 21 and the second connecting part 22, and the interior of the first vent 11 forms an airflow path with the exterior of the film application device, airflow can easily enter between the second connecting part 22 and the protective film 30 from the edge where the second connecting part 22 connects to the protective film 30, thus facilitating the connection between the second connecting part 22 and the protective film 30. Separation is achieved, thereby reducing the pressing force required when separating the first release film 20 from the protective film 30, facilitating the use of the film applicator; at the same time, the airflow passage formed between the inside of the first through hole 11 and the outside of the film applicator can also reduce the resistance generated by the closed gas inside the first through hole 11 on the movement of the protective film 30, further reducing the pressing force required; in addition, the vent hole 23 provided on the first release film 20 can divide the first release film 20 into two or more force-bearing parts, so that when the first release film 20 is subjected to the same force, the two or more force-bearing parts deform together, thereby producing a larger deformation, which is beneficial to the separation of the first release film 20 from the protective film 30.

[0035] The film application device provided in this embodiment of the utility model can reduce the force required to separate the first release film 20 and the protective film 30 by providing ventilation holes 23 on the first release film 20, making it more convenient for the film application device to separate the first release film 20 and the protective film 30 during use, thereby making it more convenient for users to use.

[0036] In some embodiments, in a projection plane perpendicular to the first direction, a portion of the orthographic projection of the vent 23 is located outside the orthographic projection range of the protective film 30. Furthermore, in a projection plane perpendicular to the first direction, at least a portion of the orthographic projection of the vent 23 is located within the orthographic projection range of the protective film 30. That is, the vent 23 is located near the edge of the protective film 30 on the first release film 20, and it is understood that the protective film 30 covers a portion of the vent 23. Thus, when the first release film 20 begins to deform, the vent 23 allows gas to flow between the first through-hole 11 and the outside of the film-applying device, further facilitating the separation of the first release film 20 from the protective film 30.

[0037] In some embodiments, the edge of the orthographic projection of the vent 23 near the first connecting portion 21 coincides with the edge of the orthographic projection of the protective film 30. That is, the vent 23 is located on the first release film 20 near the edge of the protective film 30. Thus, when the first release film 20 just begins to deform, the vent 23 allows gas to flow between the first through-hole 11 and the outside of the film-applying device, further facilitating the separation of the first release film 20 from the protective film 30.

[0038] In some embodiments, the vent 23 is arc-shaped or strip-shaped. It is understood that the shape of the vent 23 refers to the shape of its cross-section perpendicular to the first direction. An arc-shaped vent 23, with its curved arrangement, allows it to cover a larger area, further facilitating the separation of the first release film 20 from the protective film 30. A strip-shaped vent 23, with its large span, also allows it to cover a wider area, further facilitating the separation of the first release film 20 from the protective film 30, while also being easier to process and lower in cost.

[0039] In some specific embodiments, the vent hole 23 is circular in shape. The circular vent hole 23 allows the first release film 20 near the vent hole 23 to be subjected to more uniform stress, reducing the chance of the first release film 20 tearing, while also being easier to process and lower in cost.

[0040] In some embodiments, see Figure 1 Vent 23 is disposed between the first connecting portion 21 and the second connecting portion 22; the first release film 20 also includes a third connecting portion 24 connected between the first connecting portion 21 and the second connecting portion 22. Thus, the vent 23 is more conveniently positioned near the protective film 30 on the first release film 20, facilitating the separation of the first release film 20 from the protective film 30; furthermore, it also allows the vent 23 to be configured in different sizes or positioned in different locations, thereby improving the versatility of the film application device.

[0041] For some specific embodiments, see Figure 3The area of ​​the portion of the protective film 30 that is bonded to the second connecting portion 22 is greater than or equal to half the area of ​​the protective film 30. This makes the bond between the protective film 30 and the second connecting portion 22 more stable, thereby further reducing the probability that the protective film 30 will fall off from the first through hole 11 before the film application device is used.

[0042] In some specific embodiments, the orthographic projection of the first through hole 11 coincides with the orthographic projection of the protective film 30 in the projection plane perpendicular to the first direction. That is, the cross-section of the first through hole 11 perpendicular to the first direction has the same area and shape as the cross-section of the protective film 30 perpendicular to the first direction. Thus, the wall surface of the first through hole 11 can abut against the protective film 30 in the direction perpendicular to the first direction to hold the protective film 30 in place, thereby reducing the movement of the protective film 30 in the direction perpendicular to the first direction. This makes the protective film 30 more stably placed in the first through hole 11, and also reduces the change in the relative position between the protective film 30 and the positioning member 10, making it convenient for positioning when using the film application device.

[0043] In some embodiments, see Figure 3 and Figure 4 It also includes a limiting groove 12, which extends along the first direction and is located on the side of the first through hole 11 away from the first release film 20. In a projection plane perpendicular to the first direction, the orthographic projection of the protective film 30 is located within the orthographic projection range of the limiting groove 12. That is to say, the limiting groove 12 forms a passageway for the protective film 30 to move along the first direction. Therefore, when the film-applying device applies the film, as the protective film 30 moves along this passageway toward the device to be applied, the inner wall of the limiting groove 12 can avoid contact, thereby reducing the possibility of the protective film 30 contacting or colliding with the inner wall of the limiting groove 12, making the application of the protective film 30 smoother.

[0044] In some specific embodiments, the number of vent holes 23 is one, and the vent hole 23 is symmetrical about the center of the first through hole 11. This ensures that the first release film 20 is subjected to uniform force when pressed, thereby reducing the probability that uneven force will cause the protective film 30 to tilt and affect the application of the protective film 30.

[0045] In some embodiments, see Figure 5 The number of vent holes 23 is multiple, and the multiple vent holes 23 are symmetrical about the center of the first through hole 11. In this way, the force when the first release film 20 and the protective film 30 are separated is more uniform, reducing the probability that uneven force will cause the protective film 30 to tilt and thus affect the application of the protective film 30; at the same time, it is also beneficial to make the first release film 20 more uniformly stressed when pressing, thereby reducing the probability of the first release film 20 tearing.

[0046] In some embodiments, see Figure 1 , Figure 2 and Figure 6 The film application device also includes a second release film 40, which is disposed on the side of the protective film 30 facing away from the first release film 20. It can be understood that during film application, the side of the protective film 30 facing away from the second connecting portion 22 along the first direction is attached to the device to be filmed. Therefore, by connecting the second release film 40 to the protective film 30 for attachment, dust and other contaminants can be blocked from the protective film 30, thus facilitating film application.

[0047] Specifically, see Figure 6 The second release film 40 includes a main body 42 and a handle 41. The main body 42 is connected to the protective film 30, and the handle 41 is connected to the main body 42 and extends beyond the protective film 30. This facilitates the peeling of the second release film 40 from the protective film 30 using the handle 41 when using the film applicator, improving the convenience of using the film applicator.

[0048] Further, see Figure 5 and Figure 6 The positioning member 10 has a relief groove 13 on the side opposite to the first release film 20 along the first direction, and at least a portion of the handle portion 41 is accommodated in the relief groove 13. Thus, the handle portion 41 can be accommodated in the relief groove 13, thereby keeping the handle portion 41 relatively flat with the main body portion 42. This helps prevent the handle portion 41 from being obstructed by the positioning member 10 and lifting up, causing the second release film 40 to peel off from the protective film 30 starting from the handle portion 41, and allowing dust and other contaminants to adhere to the protective film 30. Therefore, it helps maintain the dustproof effect of the second release film 40 on the protective film 30.

[0049] Furthermore, see Figure 5 and Figure 6 The positioning member 10 has a recess on one side of the relief groove 13 perpendicular to the first direction, so that the handle part 41 can protrude from the positioning member 10 in a direction perpendicular to the first direction, so as to further facilitate the peeling of the second release film 40 from the protective film 30 through the handle part 41, and further improve the convenience of using the film application device.

[0050] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A sticker attaching apparatus characterized by comprising: The application relates to a film pasting device. The device comprises a positioning member (10) provided with a first through hole (11) penetrating in a first direction; a first release film (20) comprising a first connecting part (21) and a second connecting part (22) fixedly connected with each other, the first connecting part (21) being connected with the positioning member (10), and the second connecting part (22) being arranged on the first through hole (11); and a protective film (30) accommodated in the first through hole (11) and bonded with the second connecting part (22), wherein in a projection plane perpendicular to the first direction, at least part of the projection of the air hole (23) is located in the projection range of the protective film (30). In the projection plane perpendicular to the first direction, part of the projection of the air hole (23) is located outside the projection range of the protective film (30); or the edge of the projection of the air hole (23) on the side close to the first connecting part (21) is coincident with the edge of the projection of the protective film (30). The air hole (23) is in an arc shape or a strip shape.

2. The device according to claim 1, wherein The area of the part of the protective film (30) bonded with the second connecting part (22) is greater than or equal to half of the area of the protective film (30).

3. The film attaching apparatus according to claim 1 or 2, characterized by In the projection plane perpendicular to the first direction, the projection of the first through hole (11) is coincident with the projection of the protective film (30).

4. The film pasting apparatus according to claim 1 or 2, wherein The device further comprises a limiting groove (12) located on the side of the first through hole (11) away from the first release film (20); in the projection plane perpendicular to the first direction, the projections of the protective film (30) and the first through hole (11) are located in the projection range of the limiting groove (12).

5. The film pasting apparatus according to claim 1 or 2, wherein The air hole (23) is in an arc shape or a strip shape.

6. The film pasting apparatus according to claim 1 or 2, wherein The film pasting device further comprises a second release film (40) arranged on the side of the protective film (30) away from the first release film (20).

7. The film pasting apparatus according to claim 1 or 2, wherein The second release film (40) comprises a main body part (42) connected with the protective film (30) and a handle part (41) connected with the main body part (42) and extending out of the protective film (30).

8. The film pasting apparatus according to claim 1 or 2, wherein The side of the positioning member (10) away from the first release film (20) is provided with a avoiding groove (13), and at least part of the handle part (41) is accommodated in the avoiding groove (13).

9. The device according to claim 8, wherein ​ 10.The film pasting device according to claim 9, characterized in that, ​

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