A film pasting mechanism and a film pasting machine

Abstract

The utility model relates to a film pasting equipment technical field, concretely is a kind of film pasting mechanism and film pasting machine, including mounting seat and set on the film pasting assembly of mounting seat, transmission assembly and drive assembly;Film pasting assembly includes first membrane support group, and first membrane support group includes two oppositely arranged membrane support arms, two membrane support arms are rotatably arranged on mounting seat, for supporting the opposite two sides of protective film first direction, and membrane support arm has supporting portion, and supporting portion is used to support protective film;Drive assembly is connected with membrane support arm by transmission assembly and is driven, for driving membrane support arm to drive supporting portion to rotate, to make the supporting portion on the two oppositely arranged membrane support arms mutually away to and protective film disengage.The utility model carries protective film by oppositely arranged membrane support arm, and with drive assembly drives membrane support arm to rotate, makes protective film to be pasted on screen, its structure is simple, and can be applied to hard toughened film and curved protective film and the film pasting operation of different kinds of protective film, and the adaptability is strong.

Description

Technical Field

[0001] This utility model relates to the field of film application equipment technology, specifically to a film application mechanism and a film application machine. Background Technology

[0002] Smartphones, tablets and other electronic products have become indispensable tools in people's daily lives. However, their screens are easily bumped and scratched during use, which usually leads to screen damage or scratches. People usually apply screen protectors to protect the screen, which generally need to be replaced every 1-3 months.

[0003] Currently, mobile phone screen protectors are mainly applied manually, with some using automated screen protector machines. However, existing automated screen protector machines generally use multi-axis robotic arms combined with CCD vision positioning to achieve precise application. Their complex structure and high equipment cost limit their widespread application, making them primarily suitable for mobile phone manufacturers. Some machines pre-cut soft protective films with pre-drilled positioning holes, then use a liftable positioning rod for placement. However, this structure cannot handle the application of hard tempered glass screen protectors or curved screen protectors. Utility Model Content

[0004] To solve at least one of the above-mentioned technical problems, this utility model proposes a film application mechanism and a film application machine. The protective film is carried by a film support arm arranged opposite to each other, and the film support arm is driven to rotate by a drive component, so that the protective film is applied to the screen. Its structure is simple and can be applied to the application of different types of protective films such as rigid tempered glass films and curved protective films, and has strong adaptability.

[0005] The first objective of this utility model is to provide a film application mechanism, characterized in that it includes a mounting base and a film application component, a transmission component, and a drive component disposed on the mounting base; The film application assembly includes a first film support group, which includes two oppositely arranged film support arms. Both film support arms are rotatably mounted on the mounting base and are used to support the opposite sides of the protective film in a first direction. The film support arms have a support portion for supporting the protective film. The drive assembly is connected to the film support arm via the transmission assembly, and is used to drive the film support arm to rotate the support part, so that the support parts on the two oppositely arranged film support arms move away from each other and detach from the protective film.

[0006] Furthermore, the drive assembly includes a drive motor, the transmission assembly includes a first rotating shaft, the drive motor and the first rotating shaft are connected in a transmission connection, and the film support arm is connected in a transmission connection with the first rotating shaft.

[0007] Furthermore, the transmission assembly also includes a transmission protection structure disposed on the transmission path between the first rotating shaft and the drive motor. The transmission protection structure is used to disconnect the transmission between the drive motor and the first rotating shaft when the transmission load exceeds a preset value.

[0008] Furthermore, the transmission assembly also includes a drive gear disposed on the output end of the drive motor, and the transmission protection structure includes an elastic element, a driven gear, a transmission protection element and a fixing element arranged sequentially along the axial direction of the first rotating shaft. The driven gear is rotatably disposed on the first rotating shaft and meshes with the drive gear for transmission. The fixing element is fixedly disposed on the first rotating shaft. The elastic element provides elastic force to the driven gear, which is used to make the driven gear abut against the transmission protection element and maintain the tendency of movement in the direction of the transmission protection element. The transmission protection component is used to provide friction between it and the driven gear, so that the driven gear can drive the first shaft to rotate through the transmission protection component.

[0009] Furthermore, the transmission protection component is a silicone sheet made of silicone, and the elastic component is a spring sleeved on the first rotating shaft. The spring has a fixed end and a movable end, with the movable end abutting against the side wall of the driven gear.

[0010] Furthermore, the transmission assembly also includes a first transmission arm and a second transmission arm that are configured to cooperate. The first transmission arm is configured on the first rotating shaft, and a mounting bracket is configured on the mounting base. The film support arm is rotatably configured on the mounting bracket, and a second transmission arm is configured at the end of the support arm that is away from the support portion. The first rotating shaft drives the first transmission arm to rotate, and the second transmission arm drives the film support arm to rotate under the push of the first transmission arm.

[0011] Furthermore, the drive assembly also includes a torsion spring, which is mounted on the second rotating shaft to drive the film support arm to rotate upward and to keep the film support arm in a constant upward rotational tendency.

[0012] Furthermore, a limit block is provided on the side wall of the second transmission arm near the mounting bracket, and the supporting part has a supporting surface. After the torsion spring drives the film support arm to rotate upward until the limit block abuts against the side wall of the mounting bracket, the supporting surface is in a horizontal state.

[0013] Furthermore, the film application assembly also includes a second film support group, which is used to support the protective film on opposite sides in the second direction; The first and / or second film support group is also provided with a liquid suction component, which is fixedly mounted on the first rotating shaft and can rotate with the first rotating shaft to abut against the edge of the protective film.

[0014] The second objective of this utility model is to provide a film applicator, comprising the film applicator mechanism of any of the above-mentioned embodiments. The film applicator further includes a base, a centering positioning mechanism, and four mounting seats movably disposed on the base. The four mounting seats include two mounting seats disposed along a first direction and two mounting seats disposed along a second direction. The centering positioning mechanism includes a first positioning member, a second positioning member, a third positioning member, and a fourth positioning member respectively disposed on the four mounting seats. The first positioning member and the second positioning member are disposed opposite to each other along the first direction and can move away from or towards each other simultaneously. The third positioning member and the fourth positioning member are disposed opposite to each other along the second direction and can move away from or towards each other simultaneously. Multiple film support arms are respectively mounted on two mounting bases located in the first direction, and / or respectively mounted on two mounting bases located in the second direction.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. The film application mechanism in this utility model carries the protective film through the relatively arranged film support arms, and drives the film support arms to rotate by the drive component, so that the protective film is applied to the screen. It has a simple structure, strong adaptability, and can adapt to different types of protective films such as hard tempered glass films and curved protective films, and has a wide range of applications.

[0016] 2. In the film application mechanism of this utility model, the film support arm is connected to the drive motor through the first rotating shaft, and a transmission protection component is set on the transmission path between the drive motor and the first rotating shaft to prevent the drive motor from stalling during the film application process, thereby preventing damage to the drive motor and effectively extending the service life of the drive motor.

[0017] 3. The film applicator of this utility model has four mounting bases movably mounted on the base, and the film applicator and the centering positioning mechanism are mounted on the mounting bases and can move with the positioning mechanism to adapt to different models and sizes of film-to-be-applied parts, effectively improving the applicability of the film applicator. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of a film-applying mechanism according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of a film-applying mechanism according to an embodiment of the present invention; Figure 3This is a schematic diagram of a film-supporting arm structure in a film-applying mechanism according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the transmission protection structure in a film-applying mechanism according to an embodiment of the present invention; Figure 5 for Figure 2 A magnified view of a portion of the image; Figure 6 for Figure 2 A magnified view of a portion of the image is shown in section B. Figure 7 This is a schematic diagram of the overall structure of a film applicator according to an embodiment of the present invention.

[0020] 100-film support arm, 110-support part, 111-support surface, 112-limiting step, 120-second transmission arm, 121-limiting block, 130-second rotating shaft, 131-torsion spring; 200 - Mounting base, 210 - Mounting bracket; 300 - Drive motor, 310 - Drive gear; 400-First rotating shaft, 410-Driven gear, 420-Transmission protection component, 430-Fixing component, 440-Spring, 450-First transmission arm, 460-Liquid suction component; 500 - Area to be covered by film; 600 - Base, 610 - First positioning component, 620 - Second positioning component, 630 - Third positioning component, 640 - Fourth positioning component. Detailed Implementation

[0021] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] like Figures 1 to 7 As shown, this utility model provides a film application mechanism, including a mounting base 200 and a film application assembly, a transmission assembly, and a drive assembly disposed on the mounting base 200. The film application assembly includes a first film support group, which includes two opposing film support arms 100. Both film support arms 100 are rotatably mounted on the mounting base 200 and are used to support opposite sides of the protective film in a first direction. In the following embodiments, the first direction is defined as the length direction of the protective film (the first direction specifically includes, for example,...). Figure 1 The X direction shown is the second direction, which is along the width of the protective film (the second direction is specifically, for example, as shown in the image). Figure 1The following explanation uses the Y direction (as shown in the diagram) as an example. The number of film-supporting arms 100 in the first film-supporting group can also be multiple. When the first film-supporting group includes multiple film-supporting arms 100, the multiple film-supporting arms 100 are respectively disposed on opposite sides of the protective film in the first direction, used to support both sides of the protective film. When multiple film-supporting arms 100 are present on the same side of the protective film, the multiple film-supporting arms 100 are spaced apart along the second direction, and the rotation axes of the multiple film-supporting arms 100 coincide with each other and can rotate synchronously under the drive of the drive assembly.

[0023] like Figure 1 , Figure 2 As shown, in some embodiments, a second film support group can be provided along the second direction of the protective film. The second film support group is used to support the opposite sides of the protective film in the second direction, and its structure is the same as that of the first film support group. It can be understood that the technical solution of this utility model can be achieved by setting the first film support group or the second film support group alone. However, in this utility model, it is preferred to set the first film support group and the second film support group at the same time. During the film application process, the first film support group and the second film support group can be used at the same time or one of the first film support group or the second film support group can be used alone according to the actual film application needs, which can effectively improve the application range of the device.

[0024] like Figures 1 to 3 As shown, a support portion 110 is provided on the film support arm 100. The support portion 110 is used to support the protective film and has a support surface 111. When the first film support group is in the initial position, the support surface 111 is in a horizontal state, and all the support surfaces 111 in the first film support group are located on the same horizontal plane to support the opposite sides of the protective film in the first direction. In this embodiment, the support portion 110 may have a certain width along the second direction to improve its stability in supporting the protective film. It can be understood that the number of support portions 110 on the film support arm 100 can be set to one, two, or more. When the number of support portions 110 on a single film support arm 100 is set to multiple, the multiple support portions 110 are located in the same plane and are spaced apart along the rotation axis of the film support arm 100 to improve the load-bearing stability of the support portion 110 when carrying the protective film.

[0025] like Figures 1 to 3 As shown, in some embodiments, the support portion 110 is further provided with a limiting step 112. The limiting step 112 is used to limit the position of the protective film in the first direction and / or the second direction, so that the protective film can be in a centered position, maintain the accuracy of the film application position, and avoid incorrect film application position, which would affect the film application effect. In the following embodiments, the device to be filmed is an electronic product such as a mobile phone or tablet computer.

[0026] like Figures 1 to 2As shown, the drive assembly is connected to the film support arm 100 via a transmission assembly, and is used to drive the film support arm 100 to rotate synchronously upwards or downwards. During the film application process, the support portions 110 located on opposite sides of the protective film rotate synchronously with the film support arm 100 and move away from each other until they detach from the protective film; after the protective film and the support portions 110 detach from each other, the drive assembly drives the film support arm 100 to rotate back to its initial position. Specifically, in this utility model, a film-bearing area 500 is provided between the two film support arms 100 of the first film support group, which is used to support the film-bearing component. In use, the user first places the part to be covered on the support area 500, then removes the dustproof film from the protective film and places it on the support part 110. At this time, the protective film is directly above the part to be covered. Then, the drive assembly drives the film support arm 100 to rotate towards the support area 500, so that the protective film moves towards the part to be covered. As the film support arm 100 rotates, when the distance between the support parts 110 on both sides of the protective film is greater than or equal to the length of the protective film, the protective film separates from the support parts 110, and the protective film continues to move downward and adhere to the part to be covered.

[0027] like Figure 1 and Figure 2 As shown, in some embodiments, the driving assembly includes a drive source such as a drive motor 300, an electric push rod, or a torsion spring capable of driving the film support arm 100 to rotate, thereby achieving the film application function of the device. Specifically, in one embodiment of the present invention, the driving assembly includes a drive motor 300, and the transmission assembly includes a first rotating shaft 400. The axial direction of the first rotating shaft 400 is arranged along a first direction or a second direction of the protective film on both sides of the protective film and is driveably connected to the film support arm 100. The drive motor 300 is driveably connected to the first rotating shaft 400. The transmission connection can be achieved using meshing gears, belt drives, or cooperating transmission arms.

[0028] Specifically, the first film support assembly includes two first rotating shafts 400, which are respectively disposed on both sides of the protective film along a first direction, and their axial directions are arranged along a second direction of the protective film. The number and position of the drive motors 300 correspond to the number and position of the first rotating shafts 400. When multiple film support arms 100 are provided on the same side of the protective film, the multiple film support arms 100 are spaced apart along the axial direction of the first rotating shafts 400 on the corresponding sides, so that the multiple film support arms 100 located on the same side of the protective film rotate synchronously.

[0029] like Figure 2 and Figure 4As shown, in some embodiments, the transmission assembly further includes a transmission protection structure disposed on the transmission path between the first rotating shaft 400 and the drive motor 300. The transmission protection structure is used to disconnect the transmission between the drive motor 300 and the first rotating shaft 400 when the transmission load exceeds a preset value, so as to prevent the drive motor 300 from continuing to work when the first rotating shaft 400 cannot rotate, thereby causing a stall and damage to the drive motor 300, and thus extending the service life of the drive motor 300.

[0030] like Figure 4 As shown, in this embodiment, the transmission protection structure includes an elastic element, a driven gear 410, a transmission protection element 420, and a fixing element 430 arranged sequentially along the axial direction of the first rotating shaft 400. The driven gear 410 is rotatably mounted on the first rotating shaft 400, and a driving gear 310 is provided on the output end of the drive motor 300. The driving gear 310 meshes with the driven gear 410 for transmission. The fixing element 430 is fixedly mounted on the first rotating shaft 400. The elastic element provides elastic force to the driven gear 410, causing the driven gear 410, the transmission protection element 420, and the fixing element 430 to abut against each other, and causing the driven gear 410 to continuously maintain a tendency to move in the direction of the transmission protection element 420.

[0031] The transmission protection component 420 is mainly used to provide friction between itself and the driven gear 410, so that the driven gear 410 can drive the first rotating shaft 400 to rotate through the transmission protection component 420. Specifically, when the driven gear 410 drives the first rotating shaft 400 to rotate, there is static friction between the driven gear 410 and the transmission protection component 420; when the driven gear 410 is disconnected from the first rotating shaft 400, there is dynamic friction between the driven gear 410 and the transmission protection component 420.

[0032] like Figure 4 As shown, in some embodiments, the transmission protection member 420 is a silicone sheet made of silicone, and the elastic member is a spring 440 sleeved on the first rotating shaft 400. The spring 440 has a fixed end and a movable end. The end away from the driven gear 410 is the fixed end, and the end abutting against the side wall of the driven gear 410 is the movable end. The fixed end is fixedly disposed on the first rotating shaft 400, and the movable end can reciprocate along the axial direction of the first rotating shaft 400. Under normal operating conditions, the movable end abuts against the side wall of the driven gear 410, and the spring 440 is in a compressed state, continuously providing a driving force to the driven gear 410 in the direction of the transmission protection member 420, so that the driven gear 410 abuts against the transmission protection member 420 and maintains a tendency to move in the direction of the transmission protection member 420.

[0033] like Figures 2 to 6As shown, in some embodiments, the transmission assembly further includes a first transmission arm 450 and a second transmission arm 120 that are configured to cooperate. The first transmission arm 450 is fixedly mounted on the first rotating shaft 400. A mounting bracket 210 is provided on the mounting base 200. The film-supporting arm 100 is rotatably mounted on the mounting bracket 210 via the second rotating shaft 130, and a second transmission arm 120 is provided at the end of the first transmission arm 450 away from the support portion 110. The rotation trajectory of the first transmission arm 450 and the rotation trajectory of the second transmission arm 120 are two intersecting circular trajectories located in the same plane. When the drive assembly drives the first rotating shaft 400 to rotate, the first transmission arm 450 follows the first rotating shaft 400 to rotate towards the second rotating shaft 130, and pushes the second transmission arm 120 to rotate. Under the push of the first transmission arm 450, the second transmission arm 120 drives the film-supporting arm 100 to rotate towards the part to be covered with film.

[0034] like Figure 2 and Figure 6 As shown, in some embodiments, the drive assembly further includes a torsion spring 131 and a second rotating shaft 130. The torsion spring 131 is disposed on the second rotating shaft 130. When the first transmission arm 450 rotates away from the second transmission arm 120, the film support arm 100 rotates upward under the drive of the torsion spring 131, so that the film support arm 100 can automatically return to its initial position after completing the film application action. After the film support arm 100 returns to its initial position, the torsion spring 131 continues to provide torque to the film support arm 100, so that the film support arm 100 always maintains the upward rotation trend.

[0035] In this embodiment, a limiting block 121 is also provided on the side wall of the second transmission arm 120 near the mounting bracket 210. After the film application action is completed, the drive motor 300 reverses, and the first transmission arm 450 rotates away from the second transmission arm 120. After the torsion spring 131 drives the film support arm 100 to rotate upward to its initial position, the limiting block 121 abuts against the side wall of the mounting bracket 210, so that the film support arm 100 cannot rotate further upward under the drive of the torsion spring 131.

[0036] like Figures 1 to 6As shown, in some embodiments, the second film support group is further provided with a liquid-absorbing component 460. The liquid-absorbing component 460 is elongated and fixedly mounted on the first rotating shaft 400, parallel to the first rotating shaft 400. Initially, the liquid-absorbing component 460 is located above the first rotating shaft 400. Driven by the drive motor 300, the first rotating shaft 400 can rotate the liquid-absorbing component 460 to abut against the edge of the protective film. During the film application process, some protective films need to be bonded with adhesive. Specifically, adhesive needs to be applied to the screen before applying the film, and then the protective film is attached to the film to be applied. After the protective film is attached to the film to be applied, some adhesive will overflow from the edge of the protective film. The liquid-absorbing component 460 can effectively absorb the adhesive overflowing from the edge of the protective film. The liquid-absorbing component 460 is generally made of a hydrophilic material with strong water absorption, such as a sponge or cotton swab.

[0037] Furthermore, in this embodiment, since the first rotating shaft 400 and the film-supporting arm 100 are connected by a first transmission arm 450 and a second transmission arm 120, when the drive motor 300 rotates forward, the first rotating shaft 400 drives the first transmission arm 450 to rotate closer to the second transmission arm 120 and pushes the second transmission arm 120 to rotate, causing the film-supporting arm 100 to move downward. At this time, the liquid-absorbing component 460 rotates with the first rotating shaft 400 away from the film-to-be-applied component. This arrangement can effectively prevent the liquid-absorbing component 460 from interfering with the film-applied process. When the protective film separates from the support part 110, the drive motor 300 reverses, and the first rotating shaft 400 drives the first transmission arm 450 to rotate away from the second transmission arm 120. At this time, the liquid suction member 460 rotates with the first rotating shaft 400 towards the part to be applied until it abuts against the edge of the protective film. At the same time, the film support arm 100 rotates upward to its initial position under the drive of the torsion spring 131, and then the position is limited by the limiting block 121 to keep it in its initial position.

[0038] like Figures 1 to 7 As shown, the film applicator of this utility model includes a base 600, a centering positioning mechanism, and four mounting seats 200 movably disposed on the base 600. Two of the four mounting seats 200 are disposed along a first direction on both sides of the protective film and can move away from or towards each other simultaneously along the first direction; the other two are disposed along a second direction on both sides of the protective film and can move away from or towards each other simultaneously along the second direction. The centering positioning mechanism is used to keep the film to be applied in a centered position, and includes a first positioning element 610, a second positioning element 620, a third positioning element 630, and a fourth positioning element 640 respectively disposed on the four mounting seats 200. The first positioning element 610 and the second positioning element 620 are respectively disposed on the two mounting seats 200 located in the first direction and are disposed opposite to each other; the third positioning element 630 and the fourth positioning element 640 are respectively disposed on the two mounting seats 200 in the second direction and are disposed opposite to each other.

[0039] In this embodiment, the plurality of film-supporting arms 100 in the first film-supporting group are respectively disposed on two mounting seats 200 located in the first direction, and the plurality of film-supporting arms 100 in the second film-supporting group are respectively disposed on two mounting seats 200 located in the second direction. It can be understood that the technical solution of this utility model can be achieved by separately setting the first film-supporting group or the second film-supporting group.

[0040] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A film-applying mechanism, characterized in that, Includes a mounting base and a film application assembly, a transmission assembly, and a drive assembly disposed on the mounting base; The film application assembly includes a first film support group, which includes two oppositely arranged film support arms. Both film support arms are rotatably mounted on the mounting base and are used to support the protective film on opposite sides in a first direction. Each film support arm has a support portion for supporting the protective film. The drive assembly is connected to the film support arm via a transmission assembly, and is used to drive the film support arm to rotate the support portion, so that the support portions on the two oppositely arranged film support arms move away from each other and detach from the protective film.

2. The film-applying mechanism according to claim 1, characterized in that, The drive assembly includes a drive motor, the transmission assembly includes a first rotating shaft, the drive motor and the first rotating shaft are connected in a transmission connection, and the film support arm is connected in a transmission connection to the first rotating shaft.

3. The film-applying mechanism according to claim 2, characterized in that, The transmission assembly further includes a transmission protection structure disposed on the transmission path between the first rotating shaft and the drive motor. The transmission protection structure is used to disconnect the transmission between the drive motor and the first rotating shaft when the transmission load exceeds a preset value.

4. The film-applying mechanism according to claim 3, characterized in that, The transmission assembly further includes a drive gear disposed on the output end of the drive motor. The transmission protection structure includes an elastic element, a driven gear, a transmission protection element, and a fixing element arranged sequentially along the axial direction of the first rotating shaft. The driven gear is rotatably disposed on the first rotating shaft and meshes with the drive gear for transmission. The fixing element is fixedly disposed on the first rotating shaft. The elastic element provides elastic force to the driven gear, so that the driven gear abuts against the transmission protection element and maintains a tendency to move in the direction of the transmission protection element. The transmission protection component is used to provide friction between it and the driven gear, so that the driven gear can drive the first shaft to rotate through the transmission protection component.

5. The film-applying mechanism according to claim 4, characterized in that, The transmission protection component is a silicone sheet made of silicone, and the elastic component is a spring sleeved on the first rotating shaft. The spring has a fixed end and a movable end, and the movable end abuts against the side wall of the driven gear.

6. The film-applying mechanism according to claim 2, characterized in that, The transmission assembly further includes a first transmission arm and a second transmission arm that are configured to cooperate with each other. The first transmission arm is disposed on the first rotating shaft. The mounting base is provided with a mounting bracket. The film support arm is rotatably disposed on the mounting bracket and has a second transmission arm disposed at one end away from the support portion. The first rotating shaft drives the first transmission arm to rotate, and the second transmission arm drives the film support arm to rotate under the push of the first transmission arm.

7. The film-applying mechanism according to claim 6, characterized in that, The drive assembly also includes a torsion spring and a second rotating shaft. The torsion spring is disposed on the second rotating shaft to drive the film support arm to rotate upward and to keep the film support arm always in an upward rotational motion trend.

8. The film-applying mechanism according to claim 7, characterized in that, A limiting block is also provided on the side wall of the second transmission arm near the mounting bracket. The supporting part has a supporting surface. The torsion spring drives the film support arm to rotate upward until the limiting block abuts against the side wall of the mounting bracket, and the supporting surface is in a horizontal state.

9. The film-applying mechanism according to claim 2, characterized in that, The film application assembly also includes a second film support group, which is used to support the protective film on opposite sides in a second direction; The first film support group and / or the second film support group are further provided with a liquid absorption member, which is fixedly mounted on the first rotating shaft and can rotate with the first rotating shaft to abut against the edge of the protective film.

10. A film applicator, comprising the film applicator mechanism according to any one of claims 1-9, characterized in that, The film applicator also includes a base, a centering positioning mechanism, and four mounting seats movably disposed on the base. The four mounting seats include two mounting seats disposed along a first direction and two mounting seats disposed along a second direction. The centering positioning mechanism includes a first positioning element, a second positioning element, a third positioning element, and a fourth positioning element respectively disposed on the four mounting seats. The first positioning element and the second positioning element are disposed opposite to each other along the first direction and can move away from or towards each other simultaneously. The third positioning element and the fourth positioning element are disposed opposite to each other along the second direction and can move away from or towards each other simultaneously. The plurality of the membrane support arms are respectively disposed on two mounting bases located in the first direction, and / or respectively disposed on two mounting bases located in the second direction.

Images