A face frame transparent protective film auxiliary attaching device
By designing an auxiliary device for applying transparent protective film to face frames, and utilizing a limiting frame, guide rail, and auxiliary application mechanism, the problem of unstable quality in manual film application was solved, achieving precise and stable application of transparent protective film, which is suitable for large-scale production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI BAOLING PLASTICS CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-07-24
AI Technical Summary
Existing manual film application methods require a high level of experience and skill from workers, which can easily lead to problems such as misaligned application or unstable adhesion, making it difficult to guarantee the quality of the film application and hindering large-scale production.
A device for assisting in the application of transparent protective film to a face frame was designed, including a limiting frame, a guide rail, and a sliding seat. It is equipped with an auxiliary application mechanism that uses guide wheels and pressure wheels to achieve precise application of the transparent protective film. Combined with an abutment positioning mechanism and an anti-detachment column, it ensures the stable positioning and movement of the face frame.
It improves the adhesion quality and stability of transparent protective films, reduces the difficulty of manual operation, is suitable for large-scale production, and ensures the stability and consistency of product quality.
Smart Images
Figure CN224545339U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of protective film application auxiliary equipment technology, and in particular to a faceplate transparent protective film auxiliary application device. Background Technology
[0002] As the peripheral component of a television set, the bezel (or screen side) significantly impacts the overall viewing experience. After manufacturing, a transparent protective film is typically applied to the bezel's perimeter. This not only enhances the product's aesthetics but also extends its lifespan and reduces damage caused by dust, scratches, and other contaminants.
[0003] Currently, the industry standard for applying transparent protective film to face frames is manual operation. Specifically, workers hold a roll of transparent protective film, first attaching one end to the face frame, then slowly moving it along the length of the frame. During this movement, the protective film is initially adhered to the frame. To ensure a firm adhesion, workers also use a pressure bar to press the film tightly. This manual application method requires workers to repeatedly adjust the position and adhesion of the protective film to minimize problems during the application process.
[0004] However, existing manual film application methods have significant drawbacks. This method demands a high level of experience and skill from workers, who often require extensive training to master the application techniques. Furthermore, manual operation is prone to errors such as misaligned application or unstable adhesion, making it difficult to guarantee overall film quality. This hinders large-scale production and stable product quality control, and therefore requires improvement. Utility Model Content
[0005] To address the issue that traditional manual application of transparent protective film cannot guarantee the quality of the film application, this application provides an auxiliary device for applying transparent protective film to a face frame.
[0006] This application provides a faceplate transparent protective film auxiliary attachment device, which adopts the following technical solution: A device for assisting in the application of transparent protective film to a face frame includes a frame, on which a limiting frame for placing a face frame is provided, and the limiting frame has a stepped surface that forms a limiting fit with the face frame. Guide rails are provided around the limiting frame on the frame, and the axial direction of any one of the guide rails is parallel to the side of the adjacent face frame. A sliding seat is embedded in any one of the guide rails, and an auxiliary application mechanism for assisting in the application of the transparent protective film is provided on any one of the sliding seats.
[0007] By adopting the above technical solution, the limiting frame is provided with a stepped surface that forms a limiting fit with the face frame, ensuring the face frame is placed accurately. The guide rails on the frame around the limiting frame are parallel to the side of the adjacent face frame. At the same time, the sliding seat on the guide rail can slide along the guide rail, thereby driving the auxiliary attaching mechanism to perform auxiliary attaching of transparent protective film around the face frame. This effectively avoids the problems of crooked or unstable adhesion during manual attaching, improves the film attaching quality, ensures stable product quality, and facilitates large-scale production.
[0008] Preferably, any of the auxiliary attachment mechanisms includes a rotating disk, a fixed block, a movable block, a driving block, a guide rod, a return spring, a handle, a pressure wheel, a first guide wheel, and a second guide wheel. The rotating disk is used to hold the transparent protective film roll and is disposed on a sliding seat. The fixed block is disposed on the sliding seat and located on the side of the rotating disk near the face frame. The movable block is disposed on the side of the fixed block near the face frame, and the driving block is disposed on the side of the fixed block away from the face frame. One end of the guide rod passes through the fixed block and is fixedly connected to the movable block, and the other end of the guide rod is fixedly connected to the driving block. The return spring is disposed between the driving block and the fixed block and is sleeved on the guide rod. The handle is disposed on the side of the fixed block away from the face frame and is hinged to both the fixed block and the driving block. The pressure wheel and the first guide wheel are rotatably disposed on the side of the movable block near the face frame along the axial direction of the guide rail, and the second guide wheel is rotatably disposed on the sliding seat.
[0009] By adopting the above technical solution, the rotating disk in the auxiliary attachment mechanism is used to place the transparent protective film roll, facilitating the replacement and release of the transparent protective film roll. The fixing block is used to install and support other components. The drive block, guide rod, and handle work together to transmit the force of the operator's operation of the handle to the moving block through the drive block and guide rod. This causes the moving block to slide under the action of the handle, thereby driving the pressure wheel and the first guide wheel closer to the face frame. The first guide wheel guides the transparent protective film, while the pressure wheel presses the transparent protective film firmly onto the face frame, thus achieving auxiliary attachment of the transparent protective film. The guide rod ensures the stability and accuracy of the moving block's movement, while the return spring provides elastic support, allowing the moving block to automatically return to its original position after auxiliary attachment is completed. The second guide wheel also guides the transparent protective film, enabling it to be further accurately attached to the face frame.
[0010] Preferably, a limiting plate is provided on the side of the moving block near the face frame of the first guide wheel.
[0011] By adopting the above technical solution, the limiting plate can effectively constrain the free end of the transparent protective film released from the transparent protective film roll. During the process of the transparent protective film being conveyed from the first guide wheel to the face frame, the limiting plate can prevent the transparent protective film from deviating from the preset path and prevent it from falling off the first guide wheel and the second guide wheel, ensuring that the transparent protective film is always stably in the guiding and conveying state, and providing a continuous and reliable conveying guarantee for subsequent precise bonding to the face frame.
[0012] Preferably, the first guide wheel is provided with a first limiting groove, and the second guide wheel is provided with a second limiting groove, and both the first limiting groove and the second limiting groove form a limiting fit with the transparent protective film.
[0013] By adopting the above technical solution, a first limiting groove and a second limiting groove that form a limiting fit with the transparent protective film are respectively opened on the first guide wheel and the second guide wheel. This can better constrain the position of the protective film during the application process, prevent it from shaking or shifting, and thus improve the accuracy and stability of the transparent protective film application.
[0014] Preferably, the limiting frame is provided with a plurality of abutment positioning mechanisms for positioning the face frame.
[0015] By adopting the above technical solution and using the abutment positioning mechanism to position the face frame, the possibility of displacement of the face frame during the application of the transparent protective film can be reduced, thereby further improving the accuracy and stability of the application of the transparent protective film.
[0016] Preferably, any of the aforementioned abutment positioning mechanisms includes a positioning bolt, a positioning spring, and a positioning element. The positioning bolt passes through the positioning element and is fixedly connected to the limiting frame. The positioning spring is disposed between the nut of the positioning bolt and the positioning element and is sleeved on the positioning bolt. One end of the positioning element can form an abutment limiting fit with the face frame.
[0017] By adopting the above technical solution, the abutting and positioning mechanism composed of positioning bolts, positioning springs and positioning components can play abutting and positioning role on the face frame. The positioning spring is elastic, which allows the positioning component to move flexibly within a certain range, while providing a certain buffer force to avoid hard damage to the face frame caused by the positioning component, ensuring the stability of the face frame position on the limit frame, and helping to improve the accuracy of protective film application.
[0018] Preferably, anti-detachment posts are provided at both ends of any of the guide rails.
[0019] By adopting the above technical solution, anti-detachment columns are set at both ends of the guide rail to prevent the sliding seat from detaching from the guide rail, ensuring that the sliding seat always moves normally on the guide rail during the operation of the transparent protective film auxiliary attachment device, so that the auxiliary attachment work can be carried out smoothly.
[0020] Preferably, any of the anti-detachment columns can be detachably fixed to the guide rail.
[0021] By adopting the above technical solution, the anti-detachment column can be detachably fixed on the guide rail, which facilitates the replacement and maintenance of the anti-detachment column. It can also flexibly adjust the installation and disassembly of the anti-detachment column according to actual needs, thereby improving the flexibility of the device.
[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The limiting frame has stepped surfaces that form a limiting fit with the face frame, and the limiting frame is equipped with several abutment positioning mechanisms for positioning the face frame. This can stably position the face frame and ensure that the face frame is fixed in position when applying the film. The guide rails on the frame around the limiting frame are parallel to the side of the adjacent face frame. At the same time, the sliding seats on the guide rails can slide along the guide rails, thereby driving the auxiliary application mechanism to perform auxiliary application of transparent protective film around the face frame. This effectively avoids the problems of crooked application or unstable adhesion when applying manually, improves the film application quality, and ensures stable product quality. 2. The first guide wheel and the second guide wheel in the auxiliary application mechanism are respectively provided with a first limiting groove and a second limiting groove that form a limiting fit with the transparent protective film. This can better constrain the position of the protective film during the application process, prevent it from shaking or shifting, and ensure the positional accuracy of the transparent protective film during the application process, thereby improving the accuracy and stability of the transparent protective film application. 3. Anti-detachment posts are installed at both ends of the guide rail to prevent the sliding seat from detaching from the guide rail, ensuring that the sliding seat always moves normally on the guide rail during the operation of the device, so that the auxiliary attachment work can be carried out smoothly. At the same time, the anti-detachment posts can be detached and fixed on the guide rail, which facilitates the replacement and maintenance of the anti-detachment posts. The installation and removal of the anti-detachment posts can also be flexibly adjusted according to actual needs, improving the flexibility of the device. Attached Figure Description
[0023] Figure 1 This is an isometric schematic diagram (auxiliary attachment state) of the main overall structure in the embodiments of this application. Figure 2 This is a partial isometric schematic diagram of the main abutment positioning mechanism structure in the embodiments of this application; Figure 3 This is a partial isometric view (reset state) of the auxiliary attachment mechanism structure, which is the main feature of this application embodiment. Figure 4 This is a partial isometric schematic diagram (reset state) of the handle hinge structure, which is the main feature of this application embodiment.
[0024] Reference numerals: 1. Frame; 2. Limiting frame; 3. Abutment positioning mechanism; 31. Positioning bolt; 32. Positioning spring; 33. Positioning component; 331. Connecting part; 332. Abutment part; 4. Guide rail; 5. Sliding seat; 51. Mounting plate; 511. Fourth rotating shaft; 6. Auxiliary attachment mechanism; 60. Rotating disk; 601. Fixed disk; 602. First rotating shaft; 603. Rotating disk; 61. Fixing block; 62. 1. Connecting block; 612. Connecting rod; 62. Moving block; 621. Second rotating shaft; 622. Third rotating shaft; 623. Limiting plate; 63. Driving block; 631. Hinge block; 64. Guide rod; 65. Return spring; 66. Handle; 661. Hinge groove; 67. Pressure wheel; 68. First guide wheel; 681. First limiting groove; 69. Second guide wheel; 691. Second limiting groove; 7. Anti-detachment column. Detailed Implementation
[0025] The following is in conjunction with the appendix Figure 1 -Appendix Figure 4 This application will be described in further detail.
[0026] This application discloses an auxiliary device for attaching a transparent protective film to a faceplate.
[0027] Reference Figure 1 A device for assisting in the application of a transparent protective film to a face frame includes a frame 1, on which a limiting frame 2 for placing a face frame is fixedly connected by bolts. The limiting frame 2 has stepped surfaces on its four edges that form a limiting fit with the face frame. Several abutment positioning mechanisms 3 for positioning the face frame are arranged along the circumference of the limiting frame on the limiting frame 2. Guide rails 4 are fixedly connected to the frame 1 around the limiting frame 2 by welding. The axis of any guide rail 4 is parallel to the side of the adjacent face frame. A sliding seat is embedded in any guide rail 4. 5. Each of the sliding seats 5 is provided with an auxiliary attaching mechanism 6 for assisting in attaching a transparent protective film. In this embodiment, the side of each sliding seat 5 facing away from the guide rail 4 is fixedly connected to a mounting plate 51 by bolts, and each of the auxiliary attaching mechanisms 6 is provided on the side of the corresponding mounting plate 51 facing away from the guide rail 4. Each of the two ends of each guide rail 4 is provided with an anti-detachment post 7, and each anti-detachment post 7 is detachably fixed to the guide rail 4. In this embodiment, each of the two ends of each guide rail 4 is provided with a threaded groove, and each anti-detachment post 7 is threadedly connected to the corresponding guide rail 4.
[0028] In practical use, the worker places the faceplate on the stepped surface of the limiting frame 2 to initially fix the faceplate. Then, the abutment positioning mechanism 3, which is set along the circumference of the faceplate, is used to firmly fix the faceplate, reducing the possibility of displacement during the application process and improving the accuracy and stability of the transparent protective film application. Subsequently, the worker stretches the end of the transparent protective film to the end of the side of the faceplate for application. The sliding seat 5 can slide along the guide rail 4 and drive the auxiliary application mechanism 6 to move along the side of the faceplate. The worker drives the auxiliary application mechanism 6 on the four guide rails 4 to perform auxiliary application work on the four sides of the faceplate, effectively avoiding the problems of crooked application or unstable adhesion during manual application, improving the film application quality and ensuring product quality stability. During the auxiliary application process, the anti-detachment pillars 7 at both ends of the guide rail 4 prevent the sliding seat 5 from detaching from the guide rail 4, ensuring that the auxiliary application work can be carried out smoothly. At the same time, the anti-detachment pillars 7 can be detachably fixed on the guide rail 4, which facilitates the replacement and maintenance of the anti-detachment pillars 7. The installation and removal of the anti-detachment pillars 7 can also be flexibly adjusted according to actual needs, improving the flexibility of the device.
[0029] Reference Figure 1 and Figure 2 Each of the abutment positioning mechanisms 3 includes a positioning bolt 31, a positioning spring 32, and a positioning element 33. The positioning element 33 includes a connecting part 331 and an abutment part 332. The positioning bolt 31 slides through the connecting part 331 of the positioning element 33 and is fixedly connected to the limiting frame 2. The positioning spring 32 is disposed between the nut of the positioning bolt 31 and the connecting part 331 of the positioning element 33 and is sleeved on the positioning bolt 31. The abutment part 332 of the positioning element 33 can form an abutment limiting fit with the face frame. In actual use, after the worker places the face frame on the stepped surface of the limiting frame 2, he rotates the positioning elements 33 in the abutment limiting mechanisms around the face frame in sequence, so that the abutment part 332 of the positioning element 33 abuts and positions the face frame, ensuring the stability of the face frame's position on the limiting frame 2, which is beneficial to improving the accuracy of protective film application. The positioning spring 32 provides elastic support, allowing the positioning element 33 to move flexibly within a certain range, avoiding hard damage to the face frame caused by the positioning element 33.
[0030] Reference Figure 1 , Figure 3 as well as Figure 4Each of the auxiliary attachment mechanisms 6 includes a rotating disk 60, a fixed block 61, a moving block 62, a driving block 63, a guide rod 64, a return spring 65, a handle 66, a pressure wheel 67, a first guide wheel 68, and a second guide wheel 69. The rotating disk 60 is used to hold the transparent protective film roll and is mounted on the mounting plate 51 on the sliding seat 5. In this embodiment, the rotating disk 60 includes a fixed disk 601, a first rotating shaft 602, and a rotating disk 603. The fixed disk 601 is fixedly connected to the mounting plate 51 by bolts. The rotating disk 603 is integrally formed and fixed to the first rotating shaft 602, and the first rotating shaft 602 is rotatably connected to the fixed disk 601. The central axes of the fixed disk 601, the first rotating shaft 602, and the rotating disk 603 are collinear. The coil sleeve is attached to the outer wall of the turntable 603; the fixing block 61 is fixedly connected to the mounting plate 51 on the sliding seat 5 by welding, and the fixing block 61 is located on the side of the turntable 60 close to the face frame. The moving block 62 is located on the side of the fixing block 61 close to the face frame, and the driving block 63 is located on the side of the fixing block 61 away from the face frame. One end of the guide rod 64 slides through the fixing block 61 and is fixedly connected to the moving block 62 by welding, and the other end of the guide rod 64 is fixedly connected to the driving block 63 by welding. The return spring 65 is located between the driving block 63 and the fixing block 61 and is sleeved on the guide rod 64. In this embodiment, there are two guide rods 64 arranged in the vertical direction, and there are also two return springs 65 corresponding to the number and position of the guide rods 64. Reference Figure 1 , Figure 3 as well as Figure 4The handle 66 is located on the side of the fixed block 61 away from the face frame, and is hinged to both the fixed block 61 and the drive block 63. In this embodiment, a connecting block 611 is fixedly connected to the side of the fixed block 61 away from the face frame by welding. Connecting rods 612 are hinged to both sides of the connecting block 611 in the vertical direction, and the ends of the two connecting rods 612 away from the connecting block 611 are hinged to the handle 66. A hinge groove 661 is provided at the end of the handle 66 near the connecting rods 612. A hinge block 631 is fixedly connected to the drive block 63 by welding, and the hinge block 631 is located within the hinge groove 661 and hinged to the handle 66. The pressure wheel 67 and the first guide... Wheel 68 is rotatably mounted on the side of the movable block 62 near the face frame along the axis of the guide rail 4, and the second guide wheel 69 is rotatably mounted on the mounting plate 51 on the sliding seat 5. In this embodiment, the movable block 62 is arranged in a "U" shape with its opening facing the face frame. The movable block 62 is rotatably connected to the second rotating shaft 621 and the third rotating shaft 622 along the axis of the guide rail 4. The pressing wheel 67 and the first guide wheel 68 are coaxially fixedly connected to the second rotating shaft 621 and the third rotating shaft 622, respectively. The mounting plate 51 is rotatably connected to the fourth rotating shaft 511 near the movable block 62, and the second guide wheel 69 is coaxially fixedly connected to the fourth rotating shaft 511.
[0031] In practical use, the worker first attaches the end of the transparent protective film to the side of the face frame. Then, the worker drives the handle 66 in the auxiliary attachment mechanism 6 to rotate. Through the connecting rod 612, the drive block 63, and the guide rod 64, the force of rotating the handle 66 is transmitted to the moving block 62, causing the moving block 62 to slide under the driving force of the handle 66. This causes the pressing wheel 67 and the first guide wheel 68 to move closer to the face frame, so that the first guide wheel 68 can guide the transparent protective film, while the pressing wheel 67 can press the transparent protective film firmly onto the face frame. Subsequently, the worker only needs to continue to drive the auxiliary attachment mechanism 6 to slide along the side of the face frame to complete the attachment process. The transparent protective film is applied with assistance. During the application process, the turntable 603 rotates the transparent protective film roll on the fixed plate 601 to release the transparent protective film. At the same time, the second guide wheel 69 guides the transparent protective film to the first guide wheel 68, so that the transparent protective film can be more accurately applied to the face frame. The guide rod 64 can ensure the stability and accuracy of the movement of the moving block 62. After the application is completed, when the worker releases the handle 66, the reset spring 65 resets and drives the moving block 62 to automatically reset, thereby driving the pressure wheel 67 and the first guide wheel 68 away from the face frame. At this time, the worker can push the device to reset along the guide rail 4 so that the application can be performed again.
[0032] Reference Figure 1 and Figure 3A limiting plate 623 is provided on the side of the moving block 62 near the face frame of the first guide wheel 68. In this embodiment, the limiting plate 623 is fixedly connected to the moving block 62 by bolts. In actual use, the limiting plate 623 constrains the end of the transparent protective film to prevent the transparent protective film from deviating from the preset path during the process of conveying the transparent protective film from the first guide wheel 68 to the face frame, and at the same time prevents the transparent protective film from falling off the first guide wheel 68 and the second guide wheel 69, so as to provide a continuous and reliable conveying guarantee for subsequent accurate bonding to the face frame.
[0033] Reference Figure 1 and Figure 3 The first guide wheel 68 has a first limiting groove 681, and the second guide wheel 69 has a second limiting groove 691. Both the first limiting groove 681 and the second limiting groove 691 form a limiting fit with the transparent protective film. In actual use, the first limiting groove 681 and the second limiting groove 691 form a limiting fit with the transparent protective film, which can better constrain the position of the protective film during the application process, prevent it from shaking or shifting, and thus improve the accuracy and stability of the transparent protective film application.
[0034] The implementation principle of this application embodiment is as follows: the limiting frame 2 and the stepped face frame on the frame 1 are used for initial placement and limiting, and then the abutment positioning mechanism 3 set along the circumference of the face frame is used for further positioning. The abutment positioning mechanism 3 is composed of bolts, positioning springs 32 and positioning parts 33 including connecting parts 331 and abutment parts 332. With the elastic support force of positioning springs 32, the abutment parts 332 of positioning parts 33 abut against the face frame to achieve stable positioning, avoiding hard damage while ensuring position stability; the sliding seat 5 with mounting plate 51 is slidably set on the guide rail 4 parallel to the side of the face frame around the frame 1, and the side of the mounting plate 51 away from the guide rail 4 carries the auxiliary attachment mechanism 6. The rotating disk 60 in the auxiliary attachment mechanism 6 is used to place the transparent protective film roll, wherein the transparent protective film roll is sleeved on the outer wall of the rotating disk 603 in the rotating disk 60, and the transparent protective film is released as the rotating disk 603 rotates; During the application process, the worker first attaches the end of the transparent protective film to the side of the face frame, and then drives the handle 66. The handle 66 is hinged to the connecting block 611 on the fixed block 61 through the connecting rod 612, and is also hinged to the hinge block 631 of the drive block 63. Rotating the handle 66 can drive the drive block 63 to move, which in turn causes the guide rod 64 passing through the fixed block 61 to push the moving block 62 closer to the face frame. At this time, the return spring 65 between the drive block 63 and the fixed block 61 is compressed. The pressing wheel 67 and the first guide wheel 68 on the moving block 62 then approach the face frame. The first guide wheel 68, in conjunction with the second guide wheel 69 on the mounting plate 51, guides the delivery of the protective film. The first limiting groove 681 and the second limiting groove 691 form a limiting fit with the protective film. At the same time, the limiting plate 623 on the moving block 62 further constrains the path of the protective film to prevent the transparent protective film from shifting or falling off during the application process. Subsequently, the worker drives the device to move along the guide rail 4, and the pressing roller 67 continuously presses the protective film onto the side of the face frame, thus completing the application work on that side. In addition, the anti-detachment posts 7 threaded at both ends of the guide rail 4 prevent the sliding seat 5 from coming off, and the detachable design facilitates maintenance and adjustment. After releasing the handle 66, the return spring 65 resets and drives the moving block 62 back to its original position. The pressing roller 67 and the first guide roller 68 then move away from the face frame, making it easier for the sliding seat 5 to reset for the next application operation. Through the coordinated positioning, guiding, pressing, and moving, the device achieves precise and stable application of the transparent protective film onto the face frame, effectively improving the quality and efficiency of film application.
[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A device for assisting in the application of transparent protective film to a faceplate, characterized in that: The device includes a frame (1), on which a limiting frame (2) for placing a faceplate is provided, and the limiting frame (2) has a stepped surface that forms a limiting fit with the faceplate. Guide rails (4) are provided around the limiting frame (2) on the frame (1), and the axial direction of any of the guide rails (4) is parallel to the side of the adjacent faceplate. A sliding seat (5) is embedded in any of the guide rails (4), and an auxiliary attaching mechanism (6) for attaching a transparent protective film is provided on any of the sliding seats (5).
2. The auxiliary device for attaching transparent protective film to a face frame according to claim 1, characterized in that: Each of the auxiliary attachment mechanisms (6) includes a rotating disk (60), a fixed block (61), a moving block (62), a driving block (63), a guide rod (64), a return spring (65), a handle (66), a pressure wheel (67), a first guide wheel (68), and a second guide wheel (69). The rotating disk (60) is used to hold the transparent protective film roll and is mounted on the sliding seat (5). The fixed block (61) is mounted on the sliding seat (5) and located on the side of the rotating disk (60) near the face frame. The moving block (62) is located on the side of the fixed block (61) near the face frame, and the driving block (63) is located on the side of the fixed block (61) away from the face frame. The guide rod (64) One end of the guide rod (64) is fixedly connected to the fixed block (61) and fixedly connected to the moving block (62), and the other end of the guide rod (64) is fixedly connected to the driving block (63). The reset spring (65) is located between the driving block (63) and the fixed block (61) and is sleeved on the guide rod (64). The handle (66) is located on the side of the fixed block (61) away from the face frame, and the handle (66) is hinged to the fixed block (61) and the driving block (63) respectively. The pressure wheel (67) and the first guide wheel (68) are rotatably located on the side of the moving block (62) close to the face frame along the axis of the guide rail (4), and the second guide wheel (69) is rotatably located on the sliding seat (5).
3. The auxiliary device for attaching transparent protective film to a faceplate according to claim 2, characterized in that: A limiting plate (623) is provided on the side of the moving block (62) near the face frame of the first guide wheel (68).
4. The auxiliary device for attaching transparent protective film to a faceplate according to claim 2, characterized in that: The first guide wheel (68) is provided with a first limiting groove (681), and the second guide wheel (69) is provided with a second limiting groove (691). The first limiting groove (681) and the second limiting groove (691) both form a limiting fit with the transparent protective film.
5. The auxiliary device for attaching transparent protective film to a face frame according to claim 1, characterized in that: The limiting frame (2) is provided with several abutment positioning mechanisms (3) for positioning the face frame.
6. The auxiliary device for attaching transparent protective film to a faceplate according to claim 5, characterized in that: Any of the aforementioned abutment positioning mechanisms (3) includes a positioning bolt (31), a positioning spring (32), and a positioning element (33). The positioning bolt (31) passes through the positioning element (33) and is fixedly connected to the limiting frame (2). The positioning spring (32) is disposed between the nut of the positioning bolt (31) and the positioning element (33) and is sleeved on the positioning bolt (31). One end of the positioning element (33) can form an abutment limiting fit with the face frame.
7. The auxiliary device for attaching transparent protective film to a face frame according to claim 1, characterized in that: Anti-detachment posts (7) are provided at both ends of any of the guide rails (4).
8. The auxiliary device for attaching transparent protective film to a face frame according to claim 7, characterized in that: Any of the aforementioned anti-detachment posts (7) can be detachably fixed to the guide rail (4).