Rapid film tearing device

Abstract

A rapid film tearing device is used for tearing a film attached to the middle of the surface of a glass sheet and comprises a bottom plate, a film coating clamp, a cover plate and a limiting assembly, two limiting blocks are fixed to the upper surface of the bottom plate, and a film tearing operation area is formed between the two limiting blocks; the film coating clamp is placed in the film tearing operation area and abuts against the two limiting blocks, a clamping area is arranged on the upper surface of the film coating clamp, and a plurality of grooves are formed in the clamping area; the cover plate covers the film coating clamp, a plurality of film tearing holes which penetrate through the upper surface and the lower surface of the cover plate and are in one-to-one correspondence with the grooves are formed in the cover plate, the film tearing holes surround the films on the glass sheets in one-to-one correspondence, the lower surface of the cover plate abuts against the glass sheets at the edge parts of the film tearing holes, and an adhesive tape pasting area for pasting an adhesive tape is formed on the upper surface of the cover plate; the adhesive surface of the adhesive tape covers the film tearing hole to form an adhesive film tearing part; the limiting assembly comprises two movable limiting pieces which are arranged on the limiting blocks in a one-to-one correspondence mode and used for pressing the cover plate on the coating clamp.

Description

Technical Field

[0001] This utility model relates to the field of glass processing technology, and in particular to a rapid film-removing device for removing films from glass surfaces. Background Technology

[0002] In the glass manufacturing process, it is often necessary to process glass in sections to meet the requirements of its shape and function. Therefore, when processing glass in sections, a protective film is often used to cover the non-processed areas to protect them. After the glass sections are processed, the protective film on the glass surface needs to be removed so that the glass can be sent to the next processing station. Except for protective films with handles, which can be easily torn off by pulling the handle, protective films without handles and with edges completely attached to the glass are more difficult to remove and often require external tools. Currently, for small-batch glass film removal operations, soft rubber tweezers are generally used to scrape the edge of the protective film, causing the edge of the film to warp, and then the tweezers are used to pick up the warped part of the film edge to remove the protective film. This method of peeling the film is inconvenient to operate and requires a high level of skill from the operator. The edges of the protective film are not easy to scratch and warp, making the peeling process difficult. Secondly, when using soft rubber tweezers to scrape the film, the scraped part of the film is easy to fall off and adhere to the glass surface, resulting in residual adhesive on the glass surface and poor peeling effect. Moreover, the tweezers are easy to scratch the glass sheet, increasing the defect rate of the glass sheet. In addition, the above method peels the film by scraping it one by one, which is inefficient and not conducive to improving the glass processing efficiency. Utility Model Content

[0003] Therefore, it is necessary to provide a fast film-tearing device that is easy to operate, has a good film-tearing effect, and is highly efficient in addressing the above-mentioned shortcomings.

[0004] A quick-peeling film device for removing a film attached to the middle of a glass slide surface, the quick-peeling film device comprising:

[0005] The base plate has two opposing limiting blocks fixed on its upper surface, forming a film-tearing operation area between the two limiting blocks;

[0006] A coating fixture is detachably placed in the film-peeling operation area and abuts against two limiting blocks respectively. The upper surface of the coating fixture is provided with a clamping area, and the clamping area is provided with several grooves for clamping the glass sheet to be peeled.

[0007] A cover plate, which is disposed on a coating fixture, has a plurality of tear-off holes penetrating its upper and lower surfaces and corresponding one-to-one with the grooves on each of the aforementioned grooves. Each tear-off hole, when the cover plate is disposed on the coating fixture, surrounds the film on each glass sheet. The lower surface of the cover plate abuts against the glass sheet at the edge of the tear-off hole. The upper surface of the cover plate forms an adhesive area for attaching adhesive tape, with the adhesive surface of the tape covering the tear-off hole to form an adhesive tear-off portion.

[0008] The limiting assembly includes two movable limiting members that are correspondingly disposed on each limiting block and used to press the cover plate onto the coating fixture.

[0009] In one embodiment, the upper surface of the cover plate is provided with a plurality of guide holes, each guide hole corresponding to and coaxially arranged with each tear hole, the inner surface of the guide hole is an annular inclined surface, and the diameter of the guide hole gradually decreases from the upper surface of the cover plate to the lower surface of the cover plate.

[0010] In one embodiment, the upper surface of the cover plate has a plurality of parallel adhesive grooves, and each adhesive groove has a plurality of the film-peeling holes.

[0011] In one embodiment, the upper surface of the cover plate is provided with a tear-off groove at each end of each adhesive groove, the tear-off groove is connected to the adhesive groove, and the tear-off groove and the adhesive groove are located on the same straight line.

[0012] In one embodiment, the upper surface of the cover plate is provided with a plurality of reinforcing ribs.

[0013] In one embodiment, the upper surface of the coating fixture is provided with at least one positioning notch at the edge of the clamping area, and the lower surface of the cover plate is provided with at least one positioning stop that cooperates with the positioning notch.

[0014] In one embodiment, the lower surface of the cover plate has two opposing clearance notches that penetrate the side of the cover plate.

[0015] In one embodiment, the limiting block is connected to the base plate screw, and the contour shape of the limiting block located in the film-peeling operation area is adapted to the circumferential side shape of the coating fixture.

[0016] In one embodiment, the lower surface of the cover plate is provided with an arc-shaped clearance at the edge of each tear hole.

[0017] In one embodiment, the movable limiting member includes a mounting block fixed to the upper surface of the limiting block, a swing arm hinged to the mounting block and rotatable toward or away from the film-tearing operation area, and a pressure rod fixed to the end of the swing arm and capable of pressing against or away from the upper surface of the cover plate. The swing arm includes a movable part fixedly connected to the pressure rod, a hinged part away from the movable part and hinged to the mounting block, and a limiting part located between the movable part and the hinged part and connected to the mounting block by a spring.

[0018] The rapid film-removing device of this invention involves placing a cover plate on a coating fixture and creating film-removing holes on the cover plate corresponding to the grooves on the coating fixture. By attaching adhesive tape to the cover plate, the tape adheres to the film on the glass sheet in the coating fixture. With the cover plate abutting and limiting the glass sheet, pulling up the tape peels the film off the glass sheet. This method replaces the scraping and tearing method using soft tweezers, avoiding scratches and residual adhesive caused by scraping, improving the film-removing effect, and reducing the defect rate of the glass sheet film-removing process. After the cover plate is fixed, simply applying and then pulling up the tape allows for batch removal of the film, making the operation simple and improving the film-removing efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the rapid film-tearing device in one embodiment of the present invention;

[0020] Figure 2 This is an exploded view of the rapid film-tearing device in one embodiment of the present invention;

[0021] Figure 3 This is a front view of the coating fixture in one embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the cover plate in one embodiment of the present invention;

[0023] Figure 5 This is a rear view of the cover plate in one embodiment of the present invention;

[0024] Figure 6 This is a schematic cross-sectional view of the cover plate and the coating fixture after they are attached in one embodiment of the present invention;

[0025] Figure 7 for Figure 6 A partially enlarged structural diagram of part A in the illustrated embodiment;

[0026] Figure 8 This is a schematic diagram of the structure of the first film-tearing stage of the rapid film-tearing device in one embodiment of the present invention;

[0027] Figure 9This is a schematic diagram of the second film-tearing stage of the rapid film-tearing device in one embodiment of the present invention;

[0028] Figure 10 This is a schematic diagram of the third film-tearing stage of the rapid film-tearing device in one embodiment of the present invention;

[0029] Figure 11 This is a schematic diagram of the fourth film-tearing stage of the rapid film-tearing device in one embodiment of the present invention. Detailed Implementation

[0030] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0031] This utility model discloses a quick film-removing device that is easy to operate, has good film-removing effect, and high film-removing efficiency. This device is used to remove a film attached to the center of a glass sheet surface; that is, the film only partially covers the surface of the glass sheet to facilitate localized processing. Preferably, in this design, the glass sheet to be peeled is a circular sheet, with a circular film attached to the center of one side. This circular film creates a ring-shaped processing area on the glass sheet surface. Of course, in other embodiments, the glass sheet can also be other sheet-like structures, with the film attached to the center of the glass sheet surface to form a ring-shaped processing area.

[0032] For specific details, please refer to... Figure 1 and Figure 2The rapid film-tearing device of this embodiment includes a base plate 100, a coating fixture 200, a cover plate 300, and a limiting component. The base plate 100 is used to place or fix on the workbench and to support the coating fixture 200, the cover plate 300, and the limiting component, so as to facilitate the installation of each component and the handling of the entire rapid film-tearing device. Two limiting blocks 400 are fixed on the upper surface of the base plate 100 and are arranged opposite each other, forming a film-tearing working area 410 between the two limiting blocks 400. The coating fixture 200 is detachably placed in the film-removing operation area 410 and abuts against two limiting blocks 400 respectively. The upper surface of the coating fixture 200 is provided with a clamping area, and several grooves 210 are provided in the clamping area for clamping the glass sheet 10 to be peeled. The depth of the grooves 210 is equal to or slightly less than the thickness of the glass sheet 10 to be peeled, so as to avoid the problem of difficulty in peeling the glass sheet due to the large distance between the lower surface of the cover plate 300 and the upper surface of the glass sheet, making it difficult to stick the tape to the film, or the small adhesion area between the tape and the film. A cover plate 300 is placed over a coating fixture 200. The cover plate 300 has several tear-off holes 310 that penetrate its upper and lower surfaces and correspond one-to-one with each groove 210. Each tear-off hole 310 surrounds the film 20 on each glass sheet when the cover plate 300 is placed over the coating fixture 200. The lower surface of the cover plate 300 abuts against the glass sheet at the edge of the tear-off hole 310. The upper surface of the cover plate 300 forms an adhesive area for applying adhesive tape. The adhesive side of the tape covers the tear-off hole 310 to form an adhesive tear-off portion. The tape includes an adhesive side and a non-adhesive side facing away from the adhesive side. When applying the tape, the adhesive side of the tape adheres to the upper surface of the cover plate 300, and the non-adhesive side of the tape faces away from the upper surface of the cover plate 300. In this embodiment, by aligning the tear-off holes 310 on the cover plate 300 with the grooves 210 on the coating fixture 200, and by having the lower edges of the tear-off holes 310 abut against each other, the tear-off holes 310 surround the film 20. This can be understood as the diameter of the tear-off holes 310 being between the diameter of the glass and the diameter of the film 20, or the width of the tear-off holes 310 being between the width of the glass and the width of the film 20. Thus, when the cover plate 300 covers the coating fixture 200, the film 20 on the glass sheet in each groove 210 is located below a corresponding tear-off hole 310, and the lower edge of the tear-off hole 310 presses against the glass sheet, thereby limiting the glass sheet. This ensures that during the tearing process, the glass sheet is subjected to downward pressure from the cover plate 300, and the film 20 is subjected to upward tension from the tape, facilitating the removal of the film 20 from the glass sheet. The limiting assembly includes two movable limiting members 500, each corresponding to one of the limiting blocks 400, used to press the cover plate 300 onto the coating fixture 200. In this embodiment, the two limiting blocks 400, which are arranged opposite each other, are used to position the coating fixture 200 within the upper surface of the base plate 100, thereby preventing the coating fixture 200 from moving within the upper surface of the base plate 100.By squeezing the cover plate 300 with the movable limiting component 500, the cover plate 300 and the coating fixture 200 are limited along the height direction (or thickness direction) of the base plate 100, so as to avoid the cover plate 300 and the coating fixture 200 shaking along the height direction of the base plate 100 under the pull of the tape during the film removal process, thus ensuring the smooth progress of the film removal operation.

[0033] The coating fixture 200 is used to hold glass sheets with the film to be peeled off, so as to peel the film off the glass sheets in batches. When the glass sheet is clamped, the side of the glass sheet without film is inserted into the groove 210 of the coating fixture 200. Thus, after the glass sheet is inserted into the groove 210, the film 20 is located on the upper surface of the glass sheet, so that the film can be peeled off from above the coating fixture 200. The contour shape of the limiting block 400 located in the film peeling operation area 410 is adapted to the shape of the annular side surface of the coating fixture 200, so as to increase the contact area between the limiting block 400 and the coating fixture 200, thereby improving the stability and reliability of the positioning of the limiting block 400 on the coating fixture 200. In this embodiment, the coating fixture 200 has a disk-shaped structure, and the inner side of the limiting block 400 (the side of the limiting block 400 located in the film-peeling operation area 410) is an arc surface. Thus, while limiting the coating fixture 200 along the line connecting the two limiting blocks 400, the arc surface edge also constrains the coating fixture 200 along a direction perpendicular to the line connecting the two limiting blocks 400. In other embodiments, the coating fixture 200 has a rectangular plate-shaped structure or a regular polygon structure with five or more sides, and the shape of the inner side of the limiting block 400 is adapted to the shape of the circumferential side of the coating fixture 200.

[0034] To facilitate batch film removal from glass sheets within the coating fixture 200, the grooves 210 on the upper surface of the coating fixture 200 are arranged in at least a row. Depending on the shape of the coating fixture 200, the number of grooves 210 in each row can be the same (e.g., for a rectangular coating fixture 200) or different (e.g., for a disc-shaped coating fixture 200). Thus, when a strip of tape is applied to the cover plate 300, multiple films 20 can be removed at once using that tape, thereby improving the efficiency of film removal from the glass sheets.

[0035] The limiting block 400 can be detachably fixed to the base plate 100, or it can be fixed non-detachably. In one embodiment, the limiting block 400 and the base plate 100 are integrally formed. In another embodiment, the limiting block 400 is bonded to the upper surface of the base plate 100. In yet another embodiment, the limiting block 400 is screwed to the base plate 100. In still another embodiment, the limiting block 400 is snap-fitted to the base plate 100.

[0036] Please combine Figure 1-5To achieve rapid positioning of the cover plate 300 on the coating fixture 200, the upper surface of the coating fixture 200 is provided with at least one positioning notch 220 at the edge of the clamping area, and the lower surface of the cover plate 300 is provided with at least one positioning stop 320 that cooperates with the positioning notch 220 for limiting. Furthermore, the lower surface of the cover plate 300 is provided with one strip-shaped positioning stop 320 and two symmetrically arranged arc-shaped positioning stops 320. The arc-shaped positioning stops 320 are located on the lower surface of the cover plate 300 at positions corresponding to the edge of the clamping area. The number and shape of the positioning notches 220 on the coating fixture 200 are adapted to the number and shape of the positioning stops 320 on the lower surface of the cover plate 300. Thus, by the mutual constraint between the positioning notch 220 on the coating fixture 200 and the positioning stop bar 320 on the cover plate 300, the cover plate 300 can be quickly positioned so that the tearing holes 310 on the cover plate 300 are aligned one by one with the grooves 210 on the coating fixture 200, thereby facilitating the tape to tear the film off the glass sheet in the grooves 210 through the tearing holes 310.

[0037] The cover plate 300 serves two purposes: firstly, it limits the position of the glass sheet and the coating fixture 200; secondly, it is used to adhere adhesive tape, providing a film-removing area. In one embodiment, the thickness of the cover plate 300 at the edge of the film-removing hole 310 is in a ratio of 1:1 to 1:2 to the thickness of the glass sheet. Please refer to... Figure 1-2 as well as Figure 4-5 In one embodiment, the upper surface of the cover plate 300 is provided with a plurality of guide holes 330, each guide hole 330 corresponding to and coaxially connected to each tear-off hole 310. The inner surface of the guide hole 330 is an annular inclined surface, and the diameter of the guide hole 330 gradually decreases from the upper surface of the cover plate 300 to the lower surface of the cover plate 300. Alternatively, the guide hole 330 can be understood as an flared structure located at the upper edge of the tear hole 310 and penetrating the upper surface of the cover plate 300. The inner surface of the guide hole 330 is actually a conical surface. Thus, by opening the guide hole 330, the thickness of the cover plate 300 at the edge of the tear hole 310 can be further reduced. This allows the area corresponding to the tear hole 310 on the tape to be pressed after the tape is pasted on the upper surface of the cover plate 300, reducing the difficulty of pressing the tape and increasing the bonding area between the tape and the film 20 after pressing. This makes the tape and the film 20 adhere more firmly, so that when the tape is pulled up, the tape can smoothly remove the film 20 from the glass sheet.

[0038] Furthermore, in one embodiment, the upper surface of the cover plate 300 has multiple parallel adhesive grooves 340, each containing multiple film-tearing holes 310. Thus, during film removal, by attaching tape to each adhesive groove 340, multiple films 20 can be peeled off at once, achieving batch film removal of the glass sheets and improving film removal efficiency. Additionally, in this embodiment, the upper surface of the cover plate 300 has a film-tearing relief groove 350 at each end of each adhesive groove 340. The film-tearing relief groove 350 communicates with the adhesive groove 340 and is located on the same straight line as the adhesive groove 340. By providing the film-tearing relief groove 350, the end of the tape can be attached to the bottom surface of the groove, allowing the edge of the tape to be easily pulled up when peeling off, reducing the difficulty of attaching and removing the tape.

[0039] To improve the mechanical strength of the cover plate 300, a plurality of reinforcing ribs 360 are provided on the upper surface of the cover plate 300. Preferably, the plurality of reinforcing ribs 360 are arranged in parallel on the upper surface of the cover plate 300. By providing reinforcing ribs 360 on the upper surface of the cover plate 300, the mechanical strength of the cover plate 300 can be improved, preventing the cover plate 300 from deforming under pressure or tension, thus preventing the glass from shaking or being scratched by friction. It can also avoid damage to the cover plate 300 caused by frequent local deformation due to the tape being pulled up when the tape is torn off, thereby extending the service life of the cover plate 300.

[0040] In one embodiment, the lower surface of the cover plate 300 has two opposing clearance notches 370, which penetrate the side surface of the cover plate 300. More preferably, the circumferential side surface of the cover plate 300 has two opposing platforms 380, with the two clearance notches 370 correspondingly penetrating the two platforms 380. By providing clearance notches 370 on the lower surface of the cover plate 300, a gripping portion is provided. Thus, when the movable limiting member 500 releases the cover plate 300, the operator can insert tools or fingers into the clearance notches 370 to lift the cover plate 300. Additionally, please refer to... Figure 6-7 The lower surface of the cover plate 300 is provided with an arc-shaped relief portion 390 at the edge of each tear hole 310. By providing the arc-shaped relief portion 390, the scratching of the glass sheet by the lower edge of the tear hole 310 can be reduced, and the glass sheet can be prevented from being scratched after the cover plate 300 presses the product, thereby improving the yield of glass sheet processing.

[0041] To facilitate the handling of the cover plate 300, the movable limiting member 500 needs to move away from above the film-tearing operation area 410 when the cover plate 300 is released, so as to avoid interference between the movement of the movable limiting member 500 and the cover plate 300. In one embodiment, the movable limiting member 500 includes a mounting block 510 fixed to the upper surface of the limiting block 400, a swing arm 520 hinged to the mounting block 510 and rotatable toward or away from the film-tearing operation area 410, and a pressure rod 530 fixed to the end of the swing arm 520 and capable of pressing or moving away from the upper surface of the cover plate 300. The swing arm 520 includes a movable part fixedly connected to the pressure rod 530, a hinged part away from the movable part and hinged to the mounting block 510, and a limiting part located between the movable part and the hinged part and connected to the mounting block 510 by a spring (not shown). Thus, when the swing arm 520 is lifted, the swing arm 520 drives the pressure rod 530 away from the upper surface of the cover plate 300, and at the same time the spring is stretched to release the constraint of the pressure rod 530 on the cover plate 300. When the swing arm 520 is released, the spring returns to its original position and drives the swing arm 520 and the pressure rod 530 to swing down, so that the pressure rod 530 presses the cover plate 300, thereby pressing the cover plate 300 tightly against the upper surface of the coating fixture 200. More preferably, a pressing head 540 is provided on the end of the swing arm 520 facing away from the film-tearing operation area 410. The operator can lift the swing arm 520 and the pressure rod 530, or reset the swing arm 520 and the pressure rod 530 by pressing or releasing the pressing head 540, thereby reducing the operational difficulty of the movable limiting member 500. In other embodiments, the swing arm rotates in conjunction with the limiting block via a rotating shaft mounted on the upper surface of the limiting block. When the cover plate needs to be placed on the coating fixture, the swing arm is moved so that it drives the pressure rod to rotate in the plane of the upper surface of the limiting block, so that the swing arm and the pressure rod leave the film-peeling operation area. After the cover plate is placed on the coating fixture, the swing arm is moved in the opposite direction so that it drives the pressure rod to rotate and enter the film-peeling operation area, so that the pressure rod presses the cover plate.

[0042] During the assembly and use of the rapid film-peeling device, the swing arm 520 is first moved away from the film-peeling operation area 410, and the coating fixture 200 filled with glass sheets 10 to be peeled is placed between the two limiting blocks 400. The two limiting blocks 400 are used to position the coating fixture 200 (e.g., ...). Figure 8 (As shown). Then, the cover plate 300 is aligned and pressed onto the coating fixture 200 (as shown). Figure 9 As shown), the swing arm 520 is moved, causing the swing arm 520 to drive the pressure rod 530 back to the film-peeling operation area 410, and the pressure rod 530 to press the cover plate 300 onto the coating fixture 200 (as shown). Figure 1 (As shown). Next, apply the tape 30 to each film application groove in turn, pressing the tape 30 firmly with your fingers or soft rubber tweezers to ensure that the tape 30 adheres fully to the film on the glass slide (as shown). Figure 10 (As shown). Finally, tear the tape 30 to lift the film on the glass slide, thus separating the film from the glass slide (as shown). Figure 11 (As shown).

[0043] The aforementioned rapid film-peeling device involves placing a cover plate 300 over the coating fixture 200 and creating film-peeling holes 310 on the cover plate 300 corresponding to the grooves 210 on the coating fixture 200. By attaching adhesive tape 30 to the cover plate 300, the tape 30 adheres to the film 20 on the glass sheet of the coating fixture 200. With the cover plate 300 abutting and limiting the glass sheet, pulling up the tape 30 allows the tape to peel the film 20 off the glass sheet. This method replaces the scraping and tearing method using soft tweezers, avoiding scratches and residual adhesive caused by scraping, improving the film-peeling effect, and reducing the defect rate of the glass sheet film-peeling process. After the cover plate 300 is fixed, simply attaching the tape 30 and then pulling up the tape 30 is sufficient to remove the film 20 in batches. The operation is relatively simple and improves the film-peeling efficiency.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A quick film-removing device for removing a film attached to the center of a glass slide, characterized in that, include: The base plate has two opposing limiting blocks fixed on its upper surface, forming a film-tearing operation area between the two limiting blocks; A coating fixture is detachably placed in the film-peeling operation area and abuts against two limiting blocks respectively. The upper surface of the coating fixture is provided with a clamping area, and the clamping area is provided with several grooves for clamping the glass sheet to be peeled. A cover plate, which is disposed on a coating fixture, has a plurality of tear-off holes penetrating its upper and lower surfaces and corresponding one-to-one with the grooves on each of the aforementioned grooves. Each tear-off hole, when the cover plate is disposed on the coating fixture, surrounds the film on each glass sheet. The lower surface of the cover plate abuts against the glass sheet at the edge of the tear-off hole. The upper surface of the cover plate forms an adhesive area for attaching adhesive tape, with the adhesive surface of the tape covering the tear-off hole to form an adhesive tear-off portion. The limiting assembly includes two movable limiting members that are correspondingly disposed on each limiting block and used to press the cover plate onto the coating fixture.

2. The rapid film-tearing device according to claim 1, characterized in that, The upper surface of the cover plate is provided with several guide holes, each guide hole corresponding to and coaxially connected to each tear hole. The inner surface of the guide hole is an annular inclined surface, and the diameter of the guide hole gradually decreases from the upper surface of the cover plate to the lower surface of the cover plate.

3. The rapid film-tearing device according to claim 2, characterized in that, The upper surface of the cover plate has multiple parallel adhesive grooves, and each adhesive groove has multiple film-peeling holes.

4. The rapid film-tearing device according to claim 3, characterized in that, The upper surface of the cover plate is provided with a tear-off groove at both ends of each adhesive groove. The tear-off groove is connected to the adhesive groove and the adhesive groove is located on the same straight line.

5. The rapid film-tearing device according to claim 1, characterized in that, The upper surface of the cover plate is provided with multiple reinforcing ribs.

6. The rapid film-tearing device according to claim 1, characterized in that, The upper surface of the coating fixture is provided with at least one positioning notch at the edge of the clamping area, and the lower surface of the cover plate is provided with at least one positioning stop that cooperates with the positioning notch.

7. The rapid film-tearing device according to claim 1, characterized in that, The lower surface of the cover plate has two opposing clearance notches, which penetrate the side of the cover plate.

8. The rapid film-tearing device according to claim 1, characterized in that, The limiting block is connected to the base plate screw, and the contour shape of the limiting block located in the film-peeling operation area is adapted to the circumferential side shape of the coating fixture.

9. The rapid film-tearing device according to claim 1, characterized in that, The lower surface of the cover plate has an arc-shaped clearance at the edge of each tear hole.

10. The rapid film-tearing device according to claim 1, characterized in that, The movable limiting component includes a mounting block fixed to the upper surface of the limiting block, a swing arm hinged to the mounting block and rotatable toward or away from the film-tearing operation area, and a pressure rod fixed to the end of the swing arm and capable of pressing against or away from the upper surface of the cover plate. The swing arm includes a movable part fixedly connected to the pressure rod, a hinged part away from the movable part and hinged to the mounting block, and a limiting part located between the movable part and the hinged part and connected to the mounting block by a spring.

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