A mobile phone film pasting device for improving film pasting precision

CN224375993UActive Publication Date: 2026-06-19DONGGUAN SHENGZELI TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN SHENGZELI TECH CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-19

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Abstract

This utility model discloses a mobile phone screen protector application device for improving application accuracy. It includes a placement frame and a sliding member slidably disposed within the placement frame. A mobile phone receiving frame is formed between the placement frame and the sliding member to fix the mobile phone. The sliding member is provided with at least two limiting and correcting elastic members. Each limiting and correcting elastic member includes a limiting and correcting elastic connecting member formed on the sliding member and a mobile phone limiting and correcting guide member formed on the limiting and correcting elastic connecting member and extending towards the inside of the mobile phone receiving frame. This utility model provides a mobile phone screen protector application device that improves application accuracy. It can improve the accuracy of mobile phone screen protector application, preventing phone misalignment, loose application, and reduced application quality caused by screen protector application issues. This device enhances the efficiency and user experience of mobile phone screen protector application.
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Description

Technical Field

[0001] This utility model relates to the field of mobile phone screen protector application technology, and in particular to a mobile phone screen protector application device that improves the accuracy of screen protector application. Background Technology

[0002] A screen protector is a thin film material applied to the surface of a mobile phone screen or the back of the phone (some screen protectors also cover the frame). Its main purpose is to protect the phone screen and body from scratches, wear, and fingerprints. Some screen protectors also offer some protection against blue light and explosions. A precision screen protector application device is a device used to accurately and smoothly apply the screen protector to the phone screen or body. It can precisely control the position, angle, and adhesion of the screen protector to ensure a perfect fit and avoid problems such as misalignment or air bubbles.

[0003] First, select a compatible screen protector and the necessary cleaning and application tools. Clean and dry the screen with a cleaning cloth and cleaning solution. Cut the screen protector to the correct size, place it on top of the screen, and secure it with a locator or tape. Begin applying the protector from one side, making minor adjustments and ignoring air bubbles. Use a squeegee to remove air bubbles from the center outwards, puncture any stubborn ones, and trim the edges. Check for flatness, fit, and edge alignment, and make adjustments as needed. Finally, ensure the screen protector is fully adhered to the screen.

[0004] In existing technologies, some mobile phones experience screen protector misalignment during the application process. This misalignment occurs at various stages of the application, whether during the initial alignment of the screen protector with the screen or during the pressing and bonding process. Once the phone misaligns, it directly leads to deviations in the adhesion between the screen protector and the screen, resulting in problems such as air bubbles, uneven edges, or poor adhesion in certain areas. This severely affects the accuracy and quality of the application. Therefore, to address these shortcomings, a mobile phone screen protector application device that improves application accuracy is proposed to solve these problems. Utility Model Content

[0005] To address the aforementioned shortcomings, the purpose of this utility model is to provide a mobile phone screen protector application device that improves application accuracy. This device can improve the problem of mobile phone misalignment during screen protector application, which leads to uneven or loose application and reduced screen protector quality. It improves the accuracy of screen protector application, ensuring efficiency and user experience.

[0006] The technical solution adopted by this utility model to achieve the above objectives is as follows:

[0007] A mobile phone screen protector application device for improving application accuracy includes a placement frame and a sliding member slidably disposed within the placement frame. A mobile phone receiving frame for fixing the mobile phone is formed between the placement frame and the sliding member. The sliding member is provided with at least two limiting and correcting elastic members. Each limiting and correcting elastic member includes a limiting and correcting elastic connecting member formed on the sliding member and a mobile phone limiting and correcting guide member formed on the limiting and correcting elastic connecting member and extending toward the mobile phone receiving frame.

[0008] As a further description of the above technical solution: a limiting and correcting elastic element is disposed on the side of the slider facing the mobile phone accommodating frame.

[0009] As a further description of the above technical solution: the mobile phone limiting and correcting guide is suspended within the mobile phone accommodating frame.

[0010] As a further description of the above technical solution: the tail end of the mobile phone limiting and correcting guide has a first limiting and correcting guide slope that extends obliquely from the outside of the tail end to the middle of the front end of the mobile phone accommodating frame.

[0011] As a further description of the above technical solution: the tail end of the mobile phone limiting and correcting guide has a second limiting and correcting guide slope that extends obliquely from the upper right to the lower left.

[0012] As a further description of the above technical solution: a mobile phone elastic pressure plate is provided on the side of the end of the mobile phone limiting and correcting guide that faces the mobile phone accommodating frame.

[0013] As a further description of the above technical solution: an elastic pressure plate relief groove is formed on the inner side of the lower end of the mobile phone limiting and correcting guide.

[0014] As a further description of the above technical solution: the placement frame is slidably connected to a support frame; the bottom front and rear ends of the sliding member are fixedly connected to fixed plates; the bottom middle of the sliding member is fixedly connected to a limiting member; the top of the sliding member is fixedly connected to a blocking plate; the right side of the inner wall of the placement frame is fixedly connected to two limiting and correcting elastic members; the left side of the sliding member is fixedly connected to a sliding plate; the sliding plate is rotatably connected to a rotating column inside; the top side of the rotating column is fixedly connected to a transmission assembly for transmitting power; the rotating column is slidably connected to two sliding rods inside; the sliding rods are fixedly connected to a limiting plate outside; and the upper and lower sides of the limiting plate are fixedly connected to a reset assembly for resetting the limiting plate.

[0015] As a further description of the above technical solution: the transmission assembly includes a transmission rod, the bottom side of which is fixedly connected to the top side of the rotating column, and a handle is fixedly connected to the top side of the transmission rod. The transmission rod is rotatably connected to the inner wall of the sliding plate. Two arc-shaped openings are opened inside the rotating column. The outer side of the sliding rod is slidably connected to the inside of the arc-shaped openings. The outer sides of the two limiting plates are slidably connected to the inner walls of the front and rear ends of the sliding plate, respectively. Multiple square openings are opened on both the front and rear sides of the inner wall of the placement frame. The outer sides of the limiting plates are slidably connected to the inside of the square openings.

[0016] As a further description of the above technical solution: the reset assembly includes side plates, and the adjacent sides of the two side plates are respectively fixedly connected to the upper and lower sides of the limiting plate, and springs are fixedly connected to the adjacent sides of the multiple side plates.

[0017] As a further description of the above technical solution: the near ends of the plurality of springs are respectively fixedly connected to the inner walls of the front and rear ends of the sliding plate, and the outer sides of the plurality of side plates are respectively slidably connected to the inner walls of the front and rear ends of the sliding plate.

[0018] As a further description of the above technical solution: the near ends of the two limiting plates are slidably connected to the inside of the rotating column, and the far ends of the two limiting plates are slidably connected to the inner walls of the front and rear ends of the placement frame, respectively. A charging port fixing block is fixedly connected to the middle right side of the inner wall of the placement frame.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. In this utility model, the phone's charging port is fixed to the charging port fixing block, and the top is fixed by a limiting member. If it encounters a narrower phone, the screen protector can be applied normally. If it encounters a wider phone, the phone will be restricted by either limiting correction elastic member one or limiting correction elastic member two, preventing it from shaking, thus greatly improving the accuracy of screen protector application. Specifically, when limiting correction elastic member one approaches a wider phone, its phone limiting correction guide member presses against the side wall of the wider phone and is stretched open by the side wall. The limiting correction elastic connecting member on it deforms under force and provides a reset reaction force. Under the reaction forces of the two sets of limiting correction elastic members one, the phone is centered and fixed, improving the accuracy of screen protector application and ensuring the efficiency and user experience of screen protector application.

[0021] 2. In this utility model, the limiting plate is reset by applying a force in the opposite direction until the limiting plate slides away from the inside of the placement frame. At this time, the sliding plate can be pushed to slide left and right to adapt to mobile phones of different sizes. The force on the grip rotation is released, and the spring can be reset through the side plate and push the limiting plate to re-lock into the inside of the placement frame, so that the sliding part can adapt to mobile phones of different sizes.

[0022] The above is an overview of the utility model's technical solution. The following description, in conjunction with the accompanying drawings and specific embodiments, will further illustrate the utility model. Attached Figure Description

[0023] Figure 1 This is a perspective view of the entire utility model;

[0024] Figure 2 This is a schematic diagram of the sliding component;

[0025] Figure 3 A schematic diagram of the mobile phone limiting and correcting guide component in the sliding component with an elastic pressure plate clearance groove installed in the placement frame;

[0026] Figure 4 A schematic diagram of the structure of the mobile phone limiting and correcting guide component in the sliding component when there is an elastic pressure plate relief groove;

[0027] Figure 5 for Figure 4 Enlarged view of section A in the middle;

[0028] Figure 6 A schematic diagram of the back structure of the sliding component when the mobile phone limiting and correcting guide has an elastic pressure plate clearance groove;

[0029] Figure 7 An enlarged view of the mobile phone limiting and correcting guide component in the sliding component as a whole;

[0030] Figure 8 This is a schematic diagram of the sliding plate structure;

[0031] Figure 9 This is a schematic diagram of the sliding rod structure;

[0032] Legend:

[0033] 1. Placement frame; 2. Sliding component; 3. Fixing plate; 4. Limiting component; 5. Limiting and correcting elastic component one; 51. Limiting and correcting elastic connecting component; 511. Arc-shaped part; 52. Mobile phone limiting and correcting guide component; 521. First limiting and correcting guide slope; 522. Second limiting and correcting guide slope; 523. Elastic pressure plate clearance groove; 524. Mobile phone elastic pressure plate; 6. Blocking plate; 7. Square opening; 8. Sliding plate; 9. Rotating column; 10. Transmission rod; 11. Grip; 12. Arc-shaped opening; 13. Sliding rod; 14. Limiting plate; 15. Side plate; 16. Spring; 17. Support frame; 18. Limiting and correcting elastic component two; 19. Charging port fixing block; 20. Roller. Detailed Implementation

[0034] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the specific implementation methods of this utility model will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0035] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Please refer to Figures 1 to 9This utility model provides a mobile phone screen protector application device for improving application accuracy, including a placement frame 1 and a sliding member 2 slidably disposed within the placement frame 1. A mobile phone receiving frame for fixing the mobile phone is formed between the placement frame 1 and the sliding member 2. The sliding member 2 is provided with at least two limiting and correcting elastic members 5. The limiting and correcting elastic members 5 include a limiting and correcting elastic connector 51 formed on the sliding member 2 and a mobile phone limiting and correcting guide 52 formed on the upper end surface of the tail end of the limiting and correcting elastic connector 51 and extending toward the middle of the placement frame 1. In use, the phone is placed in the placement frame 1. The placement frame 1 serves as the core basic framework of the entire screen protector application device, providing support for subsequent components. Users push the slider 2 to slide within the placement frame 1, causing the limiting and correcting elastic member 5 to be positioned on the phone. At this point, the phone limiting and correcting guide 52 presses against the side wall of the phone and is pushed open by the side wall. The limiting and correcting elastic connector 51 on it deforms under force and provides a reset reaction force. Under the reaction force of the limiting and correcting elastic connector 51, the two sets of phone limiting and correcting guides 52 push the phone towards the center, centering and fixing the phone, preventing the phone from shifting during screen protector application, improving the accuracy of screen protector application, and ensuring the efficiency and user experience of screen protector application. Furthermore, the mobile phone positioning and correction guide 52 presses against the side wall of the upper surface of the mobile phone, thereby pressing the side of the film against the side wall of the mobile phone under the pressure of the mobile phone positioning and correction guide 52, thus adhering tightly to the mobile phone and effectively avoiding the situation where the curved screen mobile phone is bent on both sides and cannot be properly applied to the film.

[0039] Regarding the specific configuration of the limiting and correcting elastic element 5, the limiting and correcting elastic element 5 is located on the side of the sliding element 2 facing the mobile phone housing frame, thereby fixing and limiting the two sides of the mobile phone.

[0040] Regarding the specific pressing method of the mobile phone limiting and correcting guide 52, as follows: Figures 1 to 6 As shown, the mobile phone positioning and correction guide 52 is suspended within the mobile phone housing frame. The guide 52 presses against the side wall of the upper surface of the mobile phone, causing the side edge of the film to deform downwards and be pressed firmly against the side wall of the mobile phone under the pressure of the protruding part of the roller 20, thus adhering tightly to the phone. This effectively avoids the situation where curved screen phones are bent on both sides, preventing proper film application. The suspended structure provides ample deformation space.

[0041] To make it easier to center the phone, such as Figures 4 to 6As shown, the tail end of the mobile phone positioning and correction guide 52 has a first positioning and correction guide slope 521 that extends obliquely from the outer end of the tail end towards the middle of the front end of the slider 2. After the mobile phone is placed in the placement frame 1, when people push the slider 2 to slide in the placement frame 1, the first positioning and correction guide slope 521 first contacts the side wall of the mobile phone. Under the oblique guiding action of the first positioning and correction guide slope 521, the mobile phone is more easily centered and returned to its original position by the tail end of the mobile phone positioning and correction guide 52, thereby preventing the mobile phone from shifting during the screen protector application process, improving the accuracy of screen protector application, and ensuring the efficiency and user experience of screen protector application.

[0042] To further center the phone, such as Figure 6 As shown, the tail end of the mobile phone positioning and correction guide 52 has a second positioning and correction guide slope 522 extending obliquely from the upper right to the lower left. After the mobile phone is placed in the placement frame 1, when people push the slider 2 to slide within the placement frame 1, the first positioning and correction guide slope 521 first contacts the side wall of the mobile phone, and the second positioning and correction guide slope 522 first contacts the top of the mobile phone. Under the oblique guiding action of the second positioning and correction guide slope 522, the top of the mobile phone is centered towards the center of the placement frame 1 by the second positioning and correction guide slope 522. In conjunction with the first positioning and correction guide slope 521, the mobile phone is more easily centered by the tail end of the mobile phone positioning and correction guide 52, thereby preventing the mobile phone from shifting during the screen protector application process, improving the accuracy of screen protector application, and ensuring the efficiency and user experience of screen protector application. Furthermore, the mobile phone limiting and correcting guide 52 presses against the side wall of the upper surface of the mobile phone, so that the side edge of the film is first pressed against the side wall of the mobile phone by the second limiting and correcting guide inclined surface 522, thus sticking tightly to the mobile phone, effectively avoiding the situation where the curved screen mobile phone is bent on both sides and cannot be properly applied to the film.

[0043] The specific method for elastic deformation of the limiting and correcting elastic connector 51 is as follows: Figures 4 to 6 As shown, the outer side of the limiting and correcting elastic connector 51 has an arc-shaped portion 511 that is recessed towards the center. When the limiting and correcting elastic connector 51 is driven outward by the mobile phone limiting and correcting guide 52, the structure of its arc-shaped portion 511 is more in line with the deformation trajectory of the limiting and correcting elastic connector 51. This effectively avoids the situation where the overall vertical limiting and correcting elastic connector 51 breaks directly from the connection point connected to the sliding member 2 when it deforms, causing the mobile phone screen protector device to malfunction. This facilitates the cooperation between the various components.

[0044] Preferred, such as Figures 4 to 6As shown, a mobile phone elastic pressure plate clearance groove 523 is formed on the inner side of the lower end of the mobile phone positioning and correction guide 52. A mobile phone elastic pressure plate 524 is provided on the side of the end of the mobile phone positioning and correction guide 52 facing the mobile phone receiving frame. When the mobile phone positioning and correction guide 52 presses against the side wall of the mobile phone, the mobile phone elastic pressure plate 524 presses against the side wall of the mobile phone and is squeezed by the side wall of the mobile phone to deform into the elastic pressure plate clearance groove 523. After deformation, the mobile phone elastic pressure plate 524 provides a reaction force to center and fix the mobile phone, thereby preventing the mobile phone from shifting during the screen protector application process, improving the accuracy of screen protector application, and ensuring the efficiency and user experience of screen protector application. Furthermore, by opening the elastic pressure plate clearance groove 523, it is easier to demold the sliding part 2 during production, which is beneficial to the production of this mobile phone screen protector application device and improves the production efficiency of this mobile phone screen protector application device.

[0045] Of course, such as Figures 1 to 2 as well as Figure 7 As shown, the mobile phone positioning and correction guide 52 can also be set as a whole, without the need for the elastic pressure plate clearance groove 523, thus ensuring the fixed connection between the components of the sliding member 2. It can be set according to the actual situation. Alternatively, all mobile phone positioning and correction guides 52 can be set as a whole, with the side facing the mobile phone set as a slope that is wider at the top and narrower at the bottom, making it easier to center the mobile phone.

[0046] Regarding other structural features of this mobile phone screen protector application device, such as Figures 1 to 2 as well as Figures 8 to 9 As shown, a support frame 17 is slidably connected to the outside of the placement frame 1, allowing the placement frame 1 to slide horizontally for cleaning the phone surface. Fixing plates 3 are fixedly connected to both the front and rear ends of the bottom of the slider 2. The fixing plates 3 serve as lateral support and positioning components for the phone, ensuring it remains vertical and centered within the placement frame 1. A limiting component 4 is fixedly connected to the middle of the bottom end of the slider 2. A blocking plate 6 is fixedly connected to the top of the slider 2. The blocking plate 6 effectively prevents the phone from accidentally slipping during screen protector application; its top edge is wrapped with soft rubber material to avoid scratching the phone surface. Multiple square openings 7 are provided on both the front and rear sides of the inner wall of the placement frame 1, serving as movement guides and positioning channels for subsequent components. Two limiting and correcting elastic components 18 are fixedly connected to the right side of the inner wall of the placement frame 1, providing additional support and positioning from the bottom right side of the phone, making the phone more securely fixed in the right direction.

[0047] A sliding plate 8 is fixedly connected to the left side of the sliding member 2, and the sliding member 2 and the sliding plate 8 are stably connected through welding. A rotating column 9 is rotatably connected inside the sliding plate 8, and the rotating column 9 is stabilized by the constraint of the sliding plate 8. A power transmission assembly is fixedly connected to the top side of the rotating column 9, serving as the force transmission medium between the operator and the rotating column 9. The transmission assembly includes a transmission rod 10, which is rotatably connected to the inner wall of the sliding plate 8, allowing the transmission rod 10 to rotate stably. The bottom side of the transmission rod 10 is fixedly connected to the top side of the rotating column 9, transmitting force from the transmission rod 10 to the rotating column 9. A handle 11 is fixedly connected to the top side of the transmission rod 10, allowing the operator to comfortably and firmly apply force when gripping the handle 11, easily controlling the rotation of the transmission rod 10.

[0048] The rotating column 9 has two arc-shaped openings 12 inside to restrict the movement of subsequent components. Two sliding rods 13 are slidably connected inside the rotating column 9, and the sliding movement of the sliding rods 13 within the rotating column 9 achieves a transmission function. The external parts of the sliding rods 13 are slidably connected inside the arc-shaped openings 12, and the arc-shaped openings 12 guide and restrict the sliding rods 13, ensuring stable sliding movement within the rotating column 9. A limiting plate 14 is fixedly connected to the external parts of the sliding rods 13, transmitting the sliding force to the limiting plate 14. The external parts of the limiting plate 14 are slidably connected inside the square opening 7, which provides precise guidance and positioning for the movement of the limiting plate 14. The external parts of the two limiting plates 14 are slidably connected to the inner walls of the front and rear ends of the sliding plate 8, respectively. The inner walls of the sliding plate 8 are provided with dedicated sliding tracks and guide grooves to ensure that the limiting plates 14 can slide smoothly and steadily within the sliding plate 8.

[0049] The upper and lower sides of the limiting plate 14 are fixedly connected to reset components for the limiting plate 14. These reset components can promptly restore the limiting plate 14 to its initial position after the operator releases the handle 11. The adjacent ends of the two limiting plates 14 are slidably connected to the interior of the rotating column 9, further ensuring the connection stability and motion coordination between the limiting plate 14 and the rotating column 9. The distal ends of the two limiting plates 14 are slidably connected to the inner walls of the front and rear ends of the placement frame 1, respectively, and adjustment is completed by the limiting plates 14 engaging with the interior of the placement frame 1. The reset component includes side plates 15, with multiple side plates 15 serving as support and guide components. The exterior of the multiple side plates 15 are slidably connected to the inner walls of the front and rear ends of the sliding plate 8, enabling the side plates 15 to slide stably. The adjacent sides of the two side plates 15 are fixedly connected to the upper and lower sides of the limiting plate 14, transmitting the sliding force to the side plates 15 through the limiting plate 14. Multiple side plates 15 are each fixedly connected to a spring 16 on an adjacent side. By pressing the spring 16 with the side plate 15, the spring 16 can provide a restoring force to the side plate 15. The adjacent ends of the multiple springs 16 are respectively fixedly connected to the inner walls of the front and rear ends of the sliding plate 8, so that the spring 16 can be evenly stressed. A charging port fixing block 19 is fixedly connected to the middle of the right side of the inner wall of the placement frame 1 to lock the charging port of the mobile phone.

[0050] Working principle: First, place the mobile phone in the placement frame 1. The charging port of the mobile phone is fixed to the charging port fixing block 19. The bottom of the mobile phone is in contact with the bottom of the placement frame 1. The limiting member 4 is stuck in the top of the mobile phone. When encountering a wider mobile phone, the limiting correction elastic member 1 5 and / or the limiting correction elastic member 2 18 are engaged to achieve positioning of mobile phones of different widths and prevent the mobile phone from shaking. Then, the operator holds the handle 11 and rotates it clockwise. The handle 11 drives the transmission rod 10 to rotate, which in turn drives the rotating column 9 to rotate. The sliding rod 13 inside the rotating column 9 begins to slide under the guidance of the arc-shaped opening 12, thereby pushing the limiting plate 14 to move along the square opening 7 towards the center of the placement frame 1 within the sliding plate 8. At the same time, the limiting plate 14 also drives the side plate 15 to slide and compress the spring 16, allowing the spring 16 to store elastic potential energy. This allows the limiting plate 14 to be reset by applying a force in the opposite direction until the limiting plate 14 slides out of the placement frame 1. At this point, the sliding plate 8 can be pushed to slide left and right to accommodate different sized phones. The force on the handle 11 is then released, and the spring 16 can be reset through the side plate 15 and push the limiting plate 14 to re-engage inside the placement frame 1, allowing the sliding component 2 to accommodate different sized phones. After the phone is clamped, the prepared screen protector can be removed to complete the screen protector application.

[0051] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mobile phone screen protector application device for improving application accuracy, comprising a placement frame (1) and a slider (2) slidably disposed within the placement frame (1), characterized in that: A mobile phone receiving frame for fixing the mobile phone is formed between the placement frame (1) and the slider (2). The slider (2) is provided with at least two limiting and correcting elastic elements (5). The limiting and correcting elastic element (5) includes a limiting and correcting elastic connector (51) formed on the slider (2) and a mobile phone limiting and correcting guide (52) formed on the limiting and correcting elastic connector (51) and extending toward the inside of the mobile phone receiving frame.

2. The mobile phone screen protector application device for improving application accuracy according to claim 1, characterized in that: Limiting and correcting elastic element 1 (5) is disposed on the side of the slider (2) facing the mobile phone housing frame.

3. The mobile phone screen protector application device for improving application accuracy according to claim 1, characterized in that: The mobile phone limit correction guide (52) is suspended in the mobile phone accommodating frame.

4. The mobile phone screen protector application device for improving application accuracy according to claim 1, characterized in that: The mobile phone positioning and correction guide (52) has a first positioning and correction guide slope (521) that extends obliquely from the outside of the tail end to the middle of the front end of the mobile phone accommodating frame.

5. The mobile phone screen protector application device for improving application accuracy according to claim 1, characterized in that: The end of the mobile phone limiting and correcting guide (52) has a second limiting and correcting guide slope (522) that extends obliquely from the upper right to the lower left.

6. The mobile phone screen protector application device for improving application accuracy according to claim 1, characterized in that: The end of the mobile phone limiting and correcting guide (52) is provided with a mobile phone elastic pressure plate (524) on the side facing the mobile phone accommodating frame.

7. The mobile phone screen protector application device for improving application accuracy according to claim 1, characterized in that: An elastic pressure plate relief groove (523) is formed on the inner side of the lower end of the mobile phone limiting correction guide (52).

8. The mobile phone screen protector application device for improving application accuracy according to claim 1, characterized in that: The placement frame (1) is slidably connected to a support frame (17). The bottom front and rear ends of the sliding member (2) are fixedly connected to a fixing plate (3). The middle of the bottom end of the sliding member (2) is fixedly connected to a limiting member (4). The top end of the sliding member (2) is fixedly connected to a blocking plate (6). The right side of the inner wall of the placement frame (1) is fixedly connected to two limiting and correcting elastic members (18). The left side of the sliding member (2) is fixedly connected to a sliding plate (8). The sliding plate (8) is rotatably connected to a rotating column (9). The top side of the rotating column (9) is fixedly connected to a transmission component for transmitting power. The rotating column (9) is slidably connected to two sliding rods (13). The outside of the sliding rods (13) is fixedly connected to a limiting plate (14). The upper and lower sides of the limiting plate (14) are fixedly connected to a reset component for resetting the limiting plate (14).

9. The mobile phone screen protector application device for improving application accuracy according to claim 6, characterized in that: The transmission assembly includes a transmission rod (10), the bottom side of which is fixedly connected to the top side of the rotating column (9), and a handle (11) is fixedly connected to the top side of the transmission rod (10). The outside of the transmission rod (10) is rotatably connected to the inner wall of the sliding plate (8). The inside of the rotating column (9) has two arc-shaped openings (12). The outside of the sliding rod (13) is slidably connected to the inside of the arc-shaped openings (12). The outside of the two limiting plates (14) is slidably connected to the inner walls of the front and rear ends of the sliding plate (8). The inner walls of the placement frame (1) have multiple square openings (7) on both the front and rear sides. The outside of the limiting plates (14) is slidably connected to the inside of the square openings (7).

10. The mobile phone screen protector application device for improving application accuracy according to claim 8, characterized in that: The reset assembly includes side plates (15), with the adjacent sides of two side plates (15) fixedly connected to the upper and lower sides of the limiting plate (14), and springs (16) fixedly connected to the adjacent sides of multiple side plates (15); the adjacent ends of multiple springs (16) are fixedly connected to the inner walls of the front and rear ends of the sliding plate (8), and the outer sides of multiple side plates (15) are slidably connected to the inner walls of the front and rear ends of the sliding plate (8).

11. The mobile phone screen protector application device for improving application accuracy according to claim 8, characterized in that: The two limiting plates (14) are slidably connected at their close ends to the inside of the rotating column (9), and the two limiting plates (14) are slidably connected at their far ends to the inner walls of the front and rear ends of the placement frame (1). A charging port fixing block (19) is fixedly connected to the middle right side of the inner wall of the placement frame (1).