Automatic film sticking machine

Abstract

The invention discloses an automatic film sticking machine which is used for sticking a protective film on electronic equipment. The clamp assembly is installed on the machine base, the clamp assembly is provided with a first locking block, the first locking block is movably connected to the machine base, and the first locking block is connected with a reset piece so as to limit the electronic equipment; the exhaust mechanism is connected to the machine base, the exhaust mechanism comprises a power assembly and a movable support, the power assembly is used for driving the movable support to move above the electronic equipment, an exhaust roller is arranged on the bottom face of the movable support, and the exhaust roller is used for pressing a protective film on the electronic equipment so as to exhaust air between the protective film and the electronic equipment. The film pasting precision and stability can be improved, and the film pasting quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electronic equipment maintenance, and in particular to an automatic film sticking machine. Background Art

[0002] With the popularity of electronic devices such as smartphones and tablets, the demand for screen protectors has increased dramatically. Traditional film application methods mainly rely on manual operation, which is flexible but has many limitations. First, manual film application is inefficient and cannot meet the needs of large-scale production; second, manual operation will inevitably introduce bubbles or dust, resulting in unstable film application quality, affecting the product's appearance and user experience; in addition, for some electronic devices with complex shapes or small sizes, manual film application is more difficult and prone to position deviation. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an automatic film pasting machine, which can improve the accuracy and stability of film pasting and enhance the quality of film pasting.

[0004] An automatic film laminating machine according to a first aspect of the present invention is used for laminating a protective film on an electronic device, comprising: Machine base; A clamp assembly is installed on the base, the clamp assembly is provided with a first locking block, the first locking block is movably connected to the base, and the first locking block is connected to a reset member to limit the electronic device; An exhaust mechanism is connected to the base, and the exhaust mechanism includes a power assembly and a movable support. The power assembly is used to drive the movable support to move above the electronic device. An exhaust roller is provided on the bottom surface of the movable support. The exhaust roller is used to press the protective film on the electronic device to exhaust the air between the protective film and the electronic device.

[0005] An automatic film laminating machine according to an embodiment of the present invention has at least the following beneficial effects: through the design of the clamp assembly and the first locking block, the position of the electronic device can be firmly defined to ensure that the device will not be displaced during the film laminating process, thereby improving the accuracy of the film laminating; the exhaust roller in the exhaust mechanism can move between the protective film and the electronic device, effectively compressing and exhausting the air between the two, significantly reducing the bubble problem that may occur after the film laminating, and ensuring the quality of the film laminating; the power component drives the automatic operation of the movable support and the exhaust roller, which not only improves the work efficiency, but also reduces the errors that may be caused by manual operation, making the film laminating process more stable and reliable; the first locking block is connected to a reset piece, which can automatically return to the initial state after completing the film laminating or adjusting the position, facilitating the next operation, and also simplifying the operation process; using this machine to apply film can obtain higher quality protective film coverage, extend the service life of the electronic device, and avoid problems that may be encountered during manual film laminating, such as film laminating failure caused by dust intrusion, hand shaking, etc.

[0006] According to some embodiments of the present invention, the clamp assembly further includes a second locking block, wherein the first locking block is disposed at the rear of the base, and the second locking block is disposed at the front of the base. The first locking block and the second locking block can more firmly clamp the electronic device to prevent it from being displaced due to any external force or machine operation during the film application process. The two locking blocks can disperse the pressing force to prevent the electronic device from being damaged due to excessive force on a single point.

[0007] According to some embodiments of the present invention, the first locking block includes two first guide grooves disposed opposite to each other, the first guide grooves are disposed at an inclined angle to one end of the electronic device, and the second locking block includes two second guide grooves disposed opposite to each other, the second guide grooves are disposed at an inclined angle to the other end of the electronic device. The guide groove design at an inclined angle allows the electronic device to slide naturally along the guide groove to the center position of the clamp assembly when it is placed in. This self-positioning mechanism reduces the need for manual adjustments by the operator and ensures that the electronic device is in the optimal position each time the film is applied.

[0008] According to some embodiments of the present invention, the reset member is a tension spring, and tension springs are respectively provided on both sides of the first locking block, one end of the tension spring is fixed to the head of the base, and the other end is connected to the first locking block. The continuous elastic force provided by the tension spring can ensure that the first locking block applies a stable clamping force to the electronic device, and can maintain a good clamping effect even after long-term operation or multiple uses, thereby ensuring stability during the film application process. The fast response characteristics of the tension spring enable the first locking block to complete the reset action in a short time, speeding up the entire film application process and helping to improve the overall efficiency of the production line.

[0009] According to some embodiments of the present invention, a first rack and a second rack are respectively provided on both sides of the base, the first rack and the second rack are extended along the movement direction of the exhaust mechanism, the power assembly includes a transmission motor and a coaxial driven gear, a first travel wheel and a second travel wheel, the transmission motor is in transmission connection with the driven gear, the first travel wheel is meshed with the first rack, and the second travel wheel is meshed with the second rack. The exhaust mechanism can be accurately moved along a predetermined path, ensuring that the exhaust roller can accurately run along the surface of the electronic device, thereby ensuring the bubble exhaust effect during the film application process, and the use of gear racks for transmission can reduce the noise generated during the operation of the power assembly, and can also provide high-precision movement control.

[0010] According to some embodiments of the present invention, a first baffle is provided on the side of the first rack away from the machine base, and the height of the first baffle is higher than the height of the first rack. A second baffle is provided on the side of the second rack away from the machine base, and the height of the second baffle is higher than the height of the second rack. The first baffle and the second baffle can effectively prevent foreign objects such as dust and debris from entering the gear rack transmission system, and prevent these foreign objects from affecting the normal meshing of the gear and the rack, thereby reducing the probability of mechanical failure and extending the service life of the transmission system. The baffles can play a role in sound insulation to a certain extent, especially when they are made of sound-absorbing materials, they can further reduce the noise generated during the transmission process from propagating outward, creating a quieter working environment. The existence of the baffles provides a physical barrier for operators, reduces the risk of accidental contact with high-speed gears and racks, and improves the safety of the equipment.

[0011] According to some embodiments of the present invention, the base is provided with a positioning assembly, and the positioning assembly includes a first positioning block, a second positioning block and a third positioning block, the first positioning block is arranged at the head of the base, the second positioning block and the third positioning block are arranged at the tail of the base, and the protective film can be movably snapped into the positioning assembly. The design of the three positioning blocks provides a stable support point, so that the protective film remains stationary during the entire film application process. Even if slight external force or vibration is encountered, it can ensure that the protective film will not shift, thereby improving the success rate and quality of film application. The movable snap-on design simplifies the installation and replacement process of the protective film. The user only needs to gently place the protective film into the positioning assembly, and it will automatically snap into the correct position, reducing complex adjustment steps and improving work efficiency.

[0012] According to some embodiments of the present invention, the heights of the second positioning block and the third positioning block relative to the base are higher than the height of the first positioning block relative to the base, and the protective film forms an inclined state with the front lower and the back higher. The inclined protective film helps the air flow from the lower end (front end) to the higher end (rear end), and uses gravity to promote the exhaust process, reducing the possibility of residual bubbles and ensuring the quality of the film. The protective film is in an inclined state, and the first positioning block can provide a more stable clamping force at a lower position, ensuring that the protective film will not be displaced during the entire film application process, thereby enhancing the stability of the fixation.

[0013] According to some embodiments of the present invention, the protective film is connected to the positioning component by interference fit. The interference fit can ensure a tight and gap-free connection between the protective film and the positioning component. This high-precision fixing method can prevent any displacement or sliding of the protective film during the film application process, thereby ensuring the accuracy of the film application position.

[0014] According to some embodiments of the present invention, a folding portion is provided on the top of the first positioning block, and the folding portion is suitable for clamping the protective film. Since the folding portion can better clamp the protective film, the looseness or wrinkles that may occur at the edge of the protective film are reduced, which helps the exhaust roller to exhaust air more effectively, thereby improving the overall quality and aesthetics of the film.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is one of the schematic diagrams of an automatic film laminating machine according to an embodiment of the present invention; Figure 2 This is a second schematic diagram of an automatic film laminating machine according to an embodiment of the present invention; Figure 3 The figure is a schematic diagram of the interior of an automatic film laminating machine according to an embodiment of the present invention.

[0017] Figure numerals: base 100; movable support 105; exhaust mechanism 110; first rack 120; second rack 130; first baffle 140; second baffle 150; protective film 160; first positioning block 170; second positioning block 180; third positioning block 190; electronic device 200; first locking block 210; second locking block 220; driven gear 230; first walking wheel 240; second walking wheel 250; exhaust roller 260. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0021] In the description of the present invention, unless otherwise clearly defined, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and the technical personnel in the relevant technical field can reasonably determine the specific meaning of the above words in the present invention in combination with the specific content of the technical solution. In the description of the present invention, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In the description of the present specification, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0022] Reference Figures 1 to 3 , an automatic film laminating machine, used for laminating protective films on electronic equipment, comprising: Base 100; A clamp assembly is installed on the base 100, and the clamp assembly is provided with a first locking block 210, the first locking block 210 is movably connected to the base 100, and the first locking block 210 is connected to a reset member to limit the electronic device 200; The exhaust mechanism 110 is connected to the base 100, and includes a power assembly and a movable support 105. The power assembly is used to drive the movable support 105 to move above the electronic device 200. The bottom surface of the movable support 105 is provided with an exhaust roller 260, and the exhaust roller 260 is used to press the protective film 160 on the electronic device 200 to exhaust the air between the protective film 160 and the electronic device 200.

[0023] Through the design of the clamp assembly and the first locking block 210, the position of the electronic device 200 can be firmly defined to ensure that the device will not be displaced during the film application process, thereby improving the accuracy of the film application; the exhaust roller 260 in the exhaust mechanism 110 can move between the protective film 160 and the electronic device 200, effectively compressing and exhausting the air between the two, significantly reducing the bubble problem that may occur after the film application, and ensuring the quality of the film application; the power component drives the automatic operation of the movable support 105 and the exhaust roller 260, which not only improves the work efficiency, but also reduces the errors that may be caused by manual operation, making the film application process more stable and reliable; the first locking block 210 is connected to a reset member, which can automatically return to the initial state after the film application is completed or the position is adjusted, which is convenient for the next operation and simplifies the operation process; using this machine to apply the film can obtain a higher quality protective film 160 coverage, extend the service life of the electronic device 200, and avoid the problems that may be encountered when applying the film manually, such as dust intrusion, hand shaking, etc. caused by film application failure.

[0024] The clamp assembly further includes a second locking block 220, the first locking block 210 is disposed at the rear of the base 100, and the second locking block 220 is disposed at the front of the base 100. The first locking block 210 and the second locking block 220 can more firmly clamp the electronic device 200 to prevent it from being displaced due to any external force or machine operation during the film application process. The two locking blocks can disperse the pressing force to prevent the electronic device 200 from being damaged due to excessive force on a single point.

[0025] The first locking block 210 includes two first guide grooves arranged opposite to each other, and the first guide grooves are arranged at an inclined angle with one end of the electronic device 200. The second locking block 220 includes two second guide grooves arranged opposite to each other, and the second guide grooves are arranged at an inclined angle with the other end of the electronic device 200. The design of the guide grooves at an inclined angle allows the electronic device 200 to slide naturally along the guide grooves to the center of the clamp assembly when it is placed. This self-positioning mechanism reduces the need for manual adjustment by the operator and ensures that the electronic device 200 is in the best position every time the film is applied.

[0026] The reset member is a tension spring, and tension springs are respectively arranged on both sides of the first locking block 210, one end of the tension spring is fixed to the head of the base 100, and the other end is connected to the first locking block 210. The continuous elastic force provided by the tension spring can ensure that the first locking block 210 applies a stable clamping force to the electronic device 200, and can maintain a good clamping effect even after long-term operation or multiple uses, ensuring the stability during the film application process. The fast response characteristics of the tension spring enable the first locking block 210 to complete the reset action in a short time, speeding up the speed of the entire film application process, and helping to improve the overall efficiency of the production line.

[0027] The first rack 120 and the second rack 130 are respectively arranged on both sides of the base 100, and the first rack 120 and the second rack 130 are extended along the movement direction of the exhaust mechanism 110. The power assembly includes a transmission motor and a coaxial driven gear 230, a first running wheel 240 and a second running wheel 250. The transmission motor is connected to the driven gear 230, the first running wheel 240 is meshed with the first rack 120, and the second running wheel 250 is meshed with the second rack 130. The exhaust mechanism 110 can be accurately moved along the predetermined path, ensuring that the exhaust roller 260 can accurately run along the surface of the electronic device 200, thereby ensuring the bubble discharge effect during the film application process. The use of gear racks for transmission can reduce the noise generated during the operation of the power assembly and provide high-precision movement control.

[0028] A first baffle 140 is provided on the side of the first rack 120 away from the base 100, and the height of the first baffle 140 is higher than the height of the first rack 120. A second baffle 150 is provided on the side of the second rack 130 away from the base 100, and the height of the second baffle 150 is higher than the height of the second rack 130. The first baffle 140 and the second baffle 150 can effectively prevent foreign objects such as dust and debris from entering the gear rack transmission system, and prevent these foreign objects from affecting the normal meshing of the gear and the rack, thereby reducing the probability of mechanical failure and extending the service life of the transmission system. The baffles can play a role in sound insulation to a certain extent, especially when they are made of sound-absorbing materials, they can further reduce the noise generated during the transmission process from propagating outward, creating a quieter working environment. The existence of the baffles provides a physical barrier for operators, reduces the risk of accidental contact with high-speed gears and racks, and improves the safety of the equipment.

[0029] The height of the second positioning block 180 and the third positioning block 190 relative to the base 100 is higher than the height of the first positioning block 170 relative to the base 100, and the protective film 160 forms an inclined state with the front lower and the back higher. The inclined protective film 160 helps the air flow from the lower end (front end) to the higher end (rear end), and uses gravity to promote the exhaust process, reducing the possibility of residual bubbles and ensuring the quality of the film. The protective film 160 is in an inclined state, and the first positioning block 170 can provide a more stable clamping force at a lower position to ensure that the protective film 160 will not be displaced during the entire film application process, thereby enhancing the stability of the fixation. If there is liquid during the film application process, the inclined protective film 160 helps the liquid flow to the lower end and be collected or discharged, preventing the liquid from being retained in the working area and affecting the quality of the film application. By setting the second positioning block 180 and the third positioning block 190 to be higher than the first positioning block 170 relative to the base 100, the protective film 160 forms an inclined state with the front lower and the back higher, which not only optimizes the working performance of the automatic film laminating machine, improves the quality and efficiency of film laminating, but also provides users with a more convenient operation experience. This design takes into account the impact of physical properties on the film laminating process and is an effective means to improve the functionality of the equipment and user experience. The base 100 is provided with a positioning assembly, and the positioning assembly includes a first positioning block 170, a second positioning block 180 and a third positioning block 190. The first positioning block 170 is arranged at the head of the base 100, and the second positioning block 180 and the third positioning block 190 are arranged at the tail of the base 100. The protective film 160 can be movably connected to the positioning assembly. The design of the three positioning blocks provides a stable support point, so that the protective film 160 remains stationary during the entire film laminating process. Even if encountering slight external force or vibration, it can ensure that the protective film 160 will not shift, thereby improving the success rate and quality of the film. The movable snap-in design simplifies the installation and replacement process of the protective film 160. The user only needs to gently place the protective film 160 into the positioning component, and it will automatically snap into the correct position, reducing complex adjustment steps and improving work efficiency.

[0030] The protective film 160 is connected to the positioning component by interference fit. The interference fit can ensure a tight and gap-free connection between the protective film 160 and the positioning component. This high-precision fixing method can prevent any displacement or sliding of the protective film 160 during the film application process, thereby ensuring the accuracy of the film application position.

[0031] A folding portion is provided on the top of the first positioning block 170, and the folding portion is suitable for clamping the protective film 160. Since the folding portion can better clamp the protective film 160, the looseness or wrinkles that may occur at the edge of the protective film 160 are reduced, which helps the exhaust roller 260 to exhaust air more effectively, thereby improving the overall quality and aesthetics of the film.

[0032] In this embodiment, an automatic film laminating machine for laminating protective films on electronic devices is provided. The machine ensures a high-precision, low-noise, easy-to-operate and efficient laminating process through a series of innovative designs.

[0033] The protective film 160 is arranged at an angle, with the tail portion being higher than the head portion. This design utilizes gravity to help the air to be discharged from between the protective film 160 and the electronic device 200, and optimizes the bubble removal effect during the film application process. A positioning assembly including a first positioning block 170, a second positioning block 180 and a third positioning block 190 is arranged on the base 100. The first positioning block 170 is located at the head portion of the base 100, while the second and third positioning blocks 190 are located at the tail portion. The protective film 160 is connected to the positioning assembly by an interference fit to ensure that it remains stable and motionless during the film application process. In particular, a folding portion is provided at the top of the first positioning block 170, which is suitable for clamping the protective film 160, further enhancing the fixing effect. It is understandable that the first positioning block 170, the second positioning block 180 and the third positioning block 190 are arranged in different shapes, and the protective film 160 is also provided with mutually adapted openings at corresponding positions, which can realize a foolproof design, facilitate operators to better distinguish the front and back sides of the protective film 160, and improve the efficiency of film application.

[0034] The clamp assembly includes a first locking block 210 disposed at the head of the base 100 and a second locking block 220 at the tail. Each locking block includes a first guide groove and a second guide groove that are disposed opposite to each other and are inclined at both ends of the electronic device 200. This design realizes the automatic centering of the electronic device 200 and ensures precise alignment with the protective film 160. Tension springs are respectively disposed on both sides of the first locking block 210, one end of which is fixed to the head of the base 100 and the other end is connected to the first locking block 210. The continuous elastic force provided by the tension spring ensures that the first locking block 210 can automatically return to the initial position, simplifying the operation process.

[0035] The exhaust mechanism 110 is connected to the base 100, and includes a transmission motor and a driven gear 230, a first travel wheel 240 and a second travel wheel 250 arranged coaxially. The transmission motor drives the driven gear 230, and then drives the first travel wheel 240 and the second travel wheel 250 to move along the first rack 120 and the second rack 130. The first rack 120 and the second rack 130 are extended and arranged on both sides of the base 100 along the movement direction of the exhaust mechanism 110, ensuring the accurate movement of the exhaust mechanism 110 along the predetermined path. The first travel wheel 240 is meshed with the first rack 120, and the second travel wheel 250 is meshed with the second rack 130. In order to reduce noise, high-precision processed gears and racks are used and properly lubricated. In addition, a first baffle 140 and a second baffle 150 higher than the rack height are arranged on the side of the rack away from the base 100 to prevent foreign objects from entering and provide additional safety.

[0036] When applying the film, the user only needs to gently push the electronic device 200 into the guide groove between the first locking block 210 and the second locking block 220, and the device will naturally slide to the center position to achieve automatic centering; the protective film 160 is inserted into the positioning component and firmly fixed by interference fit and the folding part. The folding part not only provides additional clamping force, but also simplifies the installation and removal process; after starting, the transmission motor drives the exhaust mechanism 110 to move along the rack, and the exhaust roller 260 presses the protective film 160, effectively exhausting air and reducing the risk of bubble formation; after the film is applied, pull the first locking block 210, use the electronic device 200 to release, and the user can easily take out the electronic device 200 that has been filmed.

[0037] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An automatic film laminating machine, used for laminating protective films on electronic equipment, characterized in that: include: Machine base; A clamp assembly is installed on the base, the clamp assembly is provided with a first locking block, the first locking block is movably connected to the base, and the first locking block is connected to a reset member to limit the electronic device; An exhaust mechanism is connected to the base, and the exhaust mechanism includes a power assembly and a movable support. The power assembly is used to drive the movable support to move above the electronic device. An exhaust roller is provided on the bottom surface of the movable support. The exhaust roller is used to press the protective film on the electronic device to exhaust the air between the protective film and the electronic device.

2. The automatic film laminating machine according to claim 1, characterized in that: The clamp assembly also includes a second locking block, the first locking block is arranged at the tail portion of the base, and the second locking block is arranged at the head portion of the base.

3. The automatic film laminating machine according to claim 2, characterized in that: The first locking block includes two first guide grooves arranged opposite to each other, and the first guide grooves are arranged at an inclined angle to one end of the electronic device. The second locking block includes two second guide grooves arranged opposite to each other, and the second guide grooves are arranged at an inclined angle to the other end of the electronic device.

4. An automatic film laminating machine according to claim 2 or 3, characterized in that: The reset member is a tension spring, and tension springs are respectively arranged on both sides of the first locking block. One end of the tension spring is fixed to the head of the base, and the other end is connected to the first locking block.

5. The automatic film laminating machine according to claim 1, characterized in that: A first rack and a second rack are respectively arranged on both sides of the machine base, and the first rack and the second rack are extended along the movement direction of the exhaust mechanism. The power assembly includes a transmission motor and a coaxially arranged driven gear, a first travel wheel and a second travel wheel. The transmission motor is transmission-connected to the driven gear, the first travel wheel is meshed with the first rack, and the second travel wheel is meshed with the second rack.

6. The automatic film laminating machine according to claim 5, characterized in that: A first baffle is provided on the side of the first rack away from the base, and the height of the first baffle is higher than that of the first rack. A second baffle is provided on the side of the second rack away from the base, and the height of the second baffle is higher than that of the second rack.

7. The automatic film laminating machine according to claim 1, characterized in that: The base is provided with a positioning assembly, which includes a first positioning block, a second positioning block and a third positioning block. The first positioning block is arranged at the head of the base, and the second positioning block and the third positioning block are arranged at the tail of the base. The protective film can be movably clamped in the positioning assembly.

8. The automatic film laminating machine according to claim 7, characterized in that: The heights of the second positioning block and the third positioning block relative to the base are higher than the height of the first positioning block relative to the base, and the protective film forms an inclined state with the front lower and the back higher.

9. The automatic film laminating machine according to claim 7, characterized in that: The protective film is connected to the positioning component through interference fit.

10. The automatic film laminating machine according to claim 7, characterized in that: A folding portion is provided on the top of the first positioning block, and the folding portion is suitable for clamping the protective film.

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