Self-exhausting film pasting device

Abstract

The utility model provides a self-exhaust film sticking device, which comprises a base, a sliding piece, a compression roller and an exhaust device, the compression roller is rotatably mounted on the sliding piece, the sliding piece is slidably mounted on a guide rail of the base, and the base is provided with a positioning device for fixing a mobile phone and a film group. A warped piece and a rotating piece of the exhaust device are located at the two ends of the rotating shaft respectively, a pushing piece for pushing the rotating piece to rotate is arranged on the sliding piece, and the exhaust device is rotationally installed at one end of the base through the rotating shaft. When the pushing piece of the sliding piece abuts against the rotating piece, the rotating piece drives the warped piece to rotate and break away from the protective film, and the protective film falls to be attached to the screen. According to the utility model, a simpler exhaust function is realized through the combination of the rotating shaft, the warped piece and the rotating piece, unnecessary parts are reduced, and the production cost is reduced. The elastic arc piece is arranged to provide proper accumulated force for the warped piece, it is ensured that the warped piece can be rapidly moved away from the protective film when the sliding piece moves to a specific position, and therefore single-side rapid exhaust is achieved, and bubbles are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of film sticking tools, in particular to a self-exhaust film sticking device. Background Art

[0002] With the increasing popularity of smartphones, demand for screen protectors is increasing. To improve the scratch resistance and aesthetics of their phone screens, many users opt to apply screen protectors to their devices. However, during the application process, air can easily become trapped between the screen and the film, forming bubbles. This not only affects the appearance but can also reduce touchscreen sensitivity. While cost-effective, traditional manual screen application methods are difficult to perform, especially for inexperienced users, as it can be difficult to ensure bubble-free operation. Consequently, a variety of automatic or semi-automatic screen application tools have emerged to address this issue.

[0003] Some automatic air venting devices currently available on the market often employ complex mechanical designs, such as using springs or other elastic elements to assist in the air venting process. While these solutions can reduce bubble generation to a certain extent, their complex construction leads to high manufacturing costs and inconvenient maintenance. Therefore, it is particularly necessary to develop a new film applicator with a simple structure, easy operation, and effective bubble prevention. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a self-exhausting film applicator with a simple structure and easy to use. The main features are as follows: it includes a base, a sliding member, a pressure roller and an exhaust device, the pressure roller is rotatably mounted on the sliding member, the sliding member is slidably mounted on the guide rail of the base, and the base is provided with a positioning device for fixing the mobile phone and the film group. The exhaust device includes a rotating shaft, a lift and a rotor, the lift and rotor are respectively located at the two ends of the rotating shaft, the sliding member is provided with a push piece for pushing the rotor to rotate, and the exhaust device is rotatably mounted on one end of the base through the rotating shaft. When applying the film, the lift lifts one end of the protective film to prevent the protective film from prematurely fitting with the screen. When the push piece of the sliding member abuts against the rotor, the rotor drives the lift rotate and detaches from the protective film. The protective film falls and fits the screen, perfectly exhausting the air from one side.

[0005] More preferably, an elastic arc piece is provided between the lifter and the rotating shaft, and the arc piece is used to store force for the lifter to ensure that the last piece is quickly separated from the protective film.

[0006] In one solution, the arc piece is located above the lift piece. When the push piece of the sliding member abuts against the rotating piece, the rotating piece rotates upward, and the lift piece is lifted upward under the elastic force of the arc piece and separated from the protective film.

[0007] In another solution, the arc piece is located below the lifter. When the push piece of the sliding member abuts against the rotating piece, the rotating piece rotates upward, and the lifter is separated from the protective film upward under the elastic force of the arc piece.

[0008] Furthermore, the positioning device for fixing the mobile phone on the base adopts a positioning frame or a positioning block. The positioning frame can be integrally injection-molded with the base, and the positioning block adopts a soft positioning block or a hard positioning block, which is fixed to the base by glue.

[0009] Furthermore, the positioning device for fixing the membrane group on the base adopts positioning hooks or positioning columns, and the height of the positioning hooks or positioning columns on one side close to the exhaust device is higher than that on the other side, which facilitates one-way exhaust during the film application process and prevents the generation of bubbles.

[0010] Further description of the above-mentioned scheme, upper and lower guide rails parallel to each other are provided on the side panels of the base, the sliding column in the middle of the sliding member is installed in the lower guide rail, and the pull block and guide block on the top of the sliding member are installed in the upper guide rail in an inverted manner. The sliding member limits the outward deviation of the two side panels of the base through the pull block, and limits the displacement of the sliding member through the guide block.

[0011] More preferably, one end of the sliding member is rotatably connected to the upper cover, and the sliding member and the pressure roller are driven to move on the base by pulling the upper cover.

[0012] Compared with the prior art, the present invention has the following significant advantages:

[0013] Simplified structure: Compared with the complex spring-type exhaust mechanism in the existing technology, this solution achieves a simpler exhaust function through the cleverly designed shaft, paddle and rotor combination, reducing unnecessary parts and lowering production costs.

[0014] Efficient exhaust: By setting up elastic arc pieces to give the lifter appropriate force, it is ensured that the lifter can be quickly and effectively removed from the protective film when the slider moves to a specific position, thereby achieving unilateral rapid exhaust and avoiding the generation of bubbles.

[0015] High ease of use: The design of the entire device takes into account the actual needs of users. The movement of the slider is easily controlled by pulling the upper cover, so that even first-time users can easily complete high-quality film application work.

[0016] Portable and lightweight: The optimized overall structure makes the film applicator compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 、 2 A schematic diagram of the base structure provided in an embodiment of the present utility model;

[0019] Figure 3 An explosion diagram provided for an embodiment of the present utility model;

[0020] Figure 4 A schematic diagram of the exhaust device structure provided by an embodiment of the present utility model;

[0021] Figure 5 A schematic diagram of the working principle of the exhaust device provided in an embodiment of the utility model;

[0022] Figure 6 An overall schematic diagram provided for an embodiment of the present utility model;

[0023] Figure 7 An overall explosion diagram provided for an embodiment of the present utility model;

[0024] Figure 8 A schematic diagram of the structure of a sliding member provided in an embodiment of the present utility model;

[0025] Figure 9 An overall cross-sectional schematic diagram provided for an embodiment of the present utility model;

[0026] Figure 10 、 11 This is a schematic diagram of part B provided in an embodiment of the present utility model.

[0027] Among them, the reference numerals in the figures are:

[0028] 1. Base; 11. Positioning column; 12. Positioning frame; 13. Exhaust device; 131. Rotating shaft; 132. Arc piece; 133. Warping piece; 134. Rotating piece; 14. Anti-slip spring piece; 15. Lower guide rail; 16. Upper guide rail; 2. Sliding part; 21. Sliding column; 22. Pull block; 23. Guide block; 24. Push piece; 3. Pressing roller; 4. Upper cover; 41. Pressing strip; 5. Protective film; 6. Positioning film; 7. Release film; 8. Mobile phone.

[0029] The above drawings illustrate specific embodiments of the present invention, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concepts of the present invention for those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] In order to make the technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0032] See also Figures 1-11 As shown, this embodiment discloses a simple structure, easy to use self-exhaust film applicator, including a base 1, a sliding member 2, a pressure roller 3 and an exhaust device 13. The pressure roller 3 is rotatably mounted on the sliding member 2, and the sliding member 2 is slidably mounted on the guide rail of the base 1. The base 1 is provided with a positioning device for fixing the mobile phone 8 and the film group. The positioning device for fixing the mobile phone 8 on the base 1 adopts a positioning frame 12 or a positioning block, such as Figure 1 、 2 As shown, the positioning frame 12 can be integrally injection molded with the base 1, and the positioning block adopts a soft positioning block or a hard positioning block, which is fixed to the base 1 by glue. The base 1 is also provided with an anti-falling spring sheet 14 to prevent the sliding member 2 and the pressure roller 3 from falling out.

[0033] like Figure 3 、 4 As shown in Figures 5 and 6, the exhaust device 13 includes a rotating shaft 131, a lifting piece 133, and a rotating piece 134. The lifting piece 133 and the rotating piece 134 are respectively located at both ends of the rotating shaft 131. The sliding member 2 is provided with a push piece 24 that pushes the rotating piece 134 to rotate. The exhaust device 13 is rotatably mounted on one end of the base 1 via the rotating shaft 131. An elastic arc piece 132 is also provided between the lifting piece 133 and the rotating shaft 131. The arc piece 132 is used to store force for the lifting piece 133 to ensure that the lifting piece 133 is quickly separated from the protective film 5.

[0034] like Figure 3 、 4 As shown in Figures 5 and 10, the arc piece 132 is located above the tilting piece 133. When the push piece 24 of the sliding member 2 abuts against the rotating piece 134, the rotating piece 134 rotates upward, and the tilting piece 133 tilts upward under the elastic force of the arc piece 132 and separates from the protective film 5.

[0035] In another approach, Figure 11 As shown, the arc piece 132 is located below the lift piece 133 . When the push piece 24 of the sliding member 2 abuts against the rotating piece 134 , the rotating piece 134 rotates upward, and the lift piece 133 separates from the protective film 5 upward under the elastic force of the arc piece 132 .

[0036] like Figure 1 As shown, the positioning device for fixing the membrane group on the base 1 adopts a positioning hook or a positioning column 11, and the height of the positioning hook or the positioning column 11 on the side close to the exhaust device 13 is higher than that on the other side, as shown in FIG. Figure 9 As shown, it is convenient for one-way exhaust during the film application process to prevent bubbles from forming.

[0037] like Figure 1 、 8 As shown, the side panels of the base 1 are provided with mutually parallel upper and lower guide rails 16 and 15. A slide post 21 in the middle of the slider 2 is mounted within the lower guide rail 15. A pull block 22 and a guide block 23 at the top of the slider 2 are mounted in an inverted manner within the upper guide rail 16. The pull block 22 limits the outward deflection of the two side panels of the base 1, while the guide block 23 limits the displacement of the slider 2. One end of the slider 2 is rotatably connected to the upper cover 4, which pulls the upper cover 4 to drive the slider 2 and the pressure roller 3 to move on the base 1.

[0038] In order to have a more thorough and comprehensive understanding of the disclosed content of the utility model, its principle is further explained below in combination with the usage method.

[0039] When using the self-exhausting film applicator provided by the present invention, first, place the mobile phone 8 to be filmed on the base 1 and fix it by the positioning frame 12 or soft or hard positioning blocks. Ensure that the screen surface of the mobile phone 8 is flat and dust-free.

[0040] Next, take the film assembly with the release film 7, protective film 5, and positioning film 6 and fix it to the positioning posts 11 on the base 1. It should be noted that the positioning posts 11 on the side close to the exhaust device 13 are higher to facilitate one-way exhaust and prevent the generation of bubbles.

[0041] Gently pull off the outermost release film 7 to expose the protective film 5 underneath. At this point, the protective film 5 is still held in place by the positioning film 6, ready to contact the screen of the mobile phone 8.

[0042] like Figure 9 As shown, the user can start the film application process by pulling the upper cover 4. The upper cover 4 is connected to the slider 2. When the upper cover 4 is pulled, the pressure strip 41 of the upper cover 4 also contacts the protective film 5, positioning the protective film 5 on the screen and venting it to both sides. The upper cover 4 drives the slider 2 and the pressure roller 3 mounted on it to move smoothly along the guide rails.

[0043] During the movement of the pressure roller 3, Figure 10 、 11 As shown, one end of the protective film 5 is kept in a lifted state by the lift piece 133, so as to ensure that the air is gradually discharged from the right side.

[0044] When the pressure roller 3 approaches the right end of the protective film 5, as the sliding part 2 continues to move forward, the inclined surface of the push piece 24 finally contacts the inclined surface of the rotating piece 134. The push piece 24 generates an upward force on the inclined surface, prompting the rotating piece 134 to rotate. At this time, the arc piece 132 is deformed and retreats under the force, and drives the lift piece 133 to retreat. When the lift piece 133 completely exits the edge of the tempered film, the lift piece 133 quickly detaches from the protective film 5 under the action of the arc piece 132, and the protective film 5 can fall quickly and fit completely with the screen.

[0045] At the same time, the pressure roller 3 continues to apply uniform pressure along the screen surface to ensure that no bubbles remain between the protective film 5 and the screen.

[0046] Finally, when the entire protective film 5 is rolled over by the pressing roller 3 and is completely attached to the screen, the user can stop pulling the upper cover 4. At this point, the protective film 5 should have perfectly covered the entire screen without any bubbles.

[0047] Through the above steps, the utility model can effectively realize the automatic exhaust function, greatly simplify the film application process, and improve the quality and efficiency of the film application. In addition, this design also has the advantages of simple structure and convenient operation, which is very suitable for consumers.

[0048] Those skilled in the art will readily identify other embodiments of the present invention after considering this specification and practicing this invention. This application is intended to cover any variations, uses, or adaptations of the present invention that adhere to the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only; the true scope and spirit of the present invention are indicated by the following claims.

[0049] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be an element centered. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an element centered at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment. The terms "upper end", "lower end", "left side", "right side", "front end", "rear end" and similar expressions used herein are positional relationships with reference to the accompanying drawings.

[0050] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A self-exhausting film applicator, comprising a base (1), a sliding member (2), a pressure roller (3) and an exhaust device (13), wherein the pressure roller (3) is rotatably mounted on the sliding member (2), and the sliding member (2) is slidably mounted on a guide rail of the base (1), and the base (1) is provided with a positioning device for fixing a mobile phone and a film group, characterized in that: The exhaust device (13) comprises a rotating shaft (131), a tilting piece (133) and a rotating piece (134); the tilting piece (133) and the rotating piece (134) are respectively located at two ends of the rotating shaft (131); the sliding member (2) is provided with a push piece (24) for pushing the rotating piece (134) to rotate; the exhaust device (13) is rotatably mounted on one end of the base (1) via the rotating shaft (131); the exhaust device (13) is configured such that: the tilting piece (133) tilts one end of the protective film (5); when the push piece (24) of the sliding member (2) abuts against the rotating piece (134), the rotating piece (134) drives the tilting piece (133) to rotate and detach from the protective film (5), and the protective film (5) falls and adheres to the screen.

2. The self-exhaust film applicator according to claim 1, characterized in that: An elastic arc piece (132) is further provided between the tilting piece (133) and the rotating shaft (131).

3. The self-exhaust film applicator according to claim 2, characterized in that: The arc piece (132) is located above the tilting piece (133). When the push piece (24) of the sliding member (2) abuts against the rotating piece (134), the rotating piece (134) rotates upward, and the tilting piece (133) tilts upward under the elastic force of the arc piece (132) and separates from the protective film (5).

4. The self-exhaust film applicator according to claim 2, characterized in that: The arc piece (132) is located below the tilting piece (133). When the push piece (24) of the sliding member (2) abuts against the rotating piece (134), the rotating piece (134) rotates upward, and the tilting piece (133) separates upward from the protective film (5) under the elastic force of the arc piece (132).

5. The self-exhaust film applicator according to claim 1, characterized in that: The positioning device for fixing the mobile phone (8) on the base (1) adopts a positioning frame (12) or a positioning block.

6. The self-exhaust film applicator according to claim 1, characterized in that: The positioning device for fixing the membrane group on the base (1) adopts a positioning hook or a positioning column (11), and the height of the positioning hook or the positioning column (11) on the side close to the exhaust device (13) is higher than that on the other side.

7. The self-exhaust film applicator according to claim 1, characterized in that: The side panels of the base (1) are provided with upper guide rails (16) and lower guide rails (15) which are parallel to each other. The sliding column (21) in the middle of the sliding member (2) is installed in the lower guide rail (15). The pulling block (22) and the guide block (23) at the top of the sliding member (2) are installed in the upper guide rail (16) in an inverted manner. The sliding member (2) limits the outward deviation of the two side panels of the base (1) through the pulling block (22) and limits the displacement of the sliding member (2) through the guide block (23).

8. The self-exhaust film applicator according to claim 1, characterized in that: One end of the sliding member (2) is rotatably connected to the upper cover (4), and the sliding member (2) and the pressure roller (3) are driven to move on the base (1) by pulling the upper cover (4).

Images