A film tearing device for an automatic film sticking machine

Abstract

The application relates to the technical field of automatic film sticking machines, in particular to a film tearing device for an automatic film sticking machine, which comprises a supporting support, two supporting blocks and a limiting rod, the supporting support is arranged in the interior of a machine body and fixedly installed on the machine body, the two supporting blocks are arranged on the two sides of the top end of the supporting support respectively, and the limiting rod is arranged between the two supporting blocks and fixedly connected to the two supporting blocks at two ends respectively; when a tempered film needs to tear off a protective film, a carrying device adsorbs the tempered film and moves to the film tearing device, the protruding part of the protective film on the tempered film is opposite to the limiting rod through accurate positioning; then the carrying device continuously pushes the film tearing device in the horizontal direction, the protruding part first contacts the limiting rod and is elastically deformed, with the continuous horizontal movement, the protective film is gradually separated from the tempered film under the blocking action of the limiting rod, and finally the complete peeling of the protective film from the tempered film is realized.

Description

Technical Field

[0001] This application relates to the technical field of automatic film applicators, and in particular to a film peeling device for an automatic film applicator. Background Technology

[0002] In the field of automatic film applicators, tempered glass film, as an important protective component, directly affects product yield and production efficiency through the automation and precision of its application process. The traditional tempered glass film application process, particularly the film-peeling step, typically relies on manual operation or simple mechanical devices, which presents the following significant technical problems: simple mechanical devices often employ fixed scraper or roller structures, making it difficult to precisely control the separation angle between the tempered glass film and the protective film during peeling. This can easily lead to stress concentration, causing edge warping, cracking, or adhesive layer contamination of the tempered glass film. Therefore, this application proposes a film-peeling device for an automatic film applicator. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this application is to provide a film-removing device for an automatic film applicator, which solves the technical problem in the prior art where the separation angle between the tempered glass film and the protective film is difficult to control precisely during film removal, easily causing stress concentration, resulting in warping, cracking, or contamination of the adhesive layer at the edges of the tempered glass film.

[0004] The above-mentioned objective of this application is achieved through the following technical solution: a film-tearing device for an automatic film applicator, comprising a support bracket, two support blocks and a limiting rod, wherein the support bracket is located inside the machine body and is fixedly installed on the machine body, the two support blocks are respectively arranged on both sides of the top of the support bracket, and the limiting rod is located between the two support blocks and its two ends are respectively fixedly connected to the two support blocks.

[0005] By adopting the above technical solution, when the protective film of the tempered glass film needs to be peeled off, the conveying device adsorbs the tempered glass film and moves it directly above the film-peeling device. Through precise positioning, the protrusions of the protective film on the tempered glass film are aligned with the limiting rod. Subsequently, the conveying device continues to advance horizontally towards the film-peeling device. The protrusions first contact the limiting rod and undergo elastic deformation. As the horizontal movement continues, the protective film gradually separates from the tempered glass film under the obstruction of the limiting rod, ultimately achieving complete peeling of the protective film from the tempered glass film. Compared with traditional solutions, this device replaces active scraping or pulling actions with the passive blocking effect of the limiting rod, effectively avoiding local stress concentration during the film-peeling process. At the same time, the continuity of horizontal movement ensures the straightness and controllability of the separation path, which not only significantly improves the film-peeling efficiency and yield but also simplifies the equipment structure and reduces maintenance costs.

[0006] Furthermore, the support bracket has a lifting opening at the top, a lifting assembly is installed inside the support bracket, and a collection box is provided on the side of the support bracket away from the conveying device. The collection opening of the collection box faces upward, and the collection box is used to collect the detached protective film.

[0007] Furthermore, the lifting assembly includes a lifting device and a lifting platform. The lifting end of the lifting device is positioned facing the lifting opening. The lifting platform is fixedly installed on the lifting end of the lifting device. Two support plates are mounted on a support bracket via the lifting platform. Two support blocks are fixedly mounted on both sides of the lifting platform. A gap is left between the limiting rod and the surface of the lifting platform, and this gap forms a tearing space.

[0008] While the above-mentioned technical solution achieves the goal of removing the protective film from the adhesive layer of tempered glass, the protective film falls haphazardly after detaching from the tempered glass, making it difficult for workers to collect the fallen film. The lifting assembly and collection box solve this problem. With the lifting assembly, when the transport device moves the tempered glass above the tearing device, the lifting end of the lifting device rises, pushing the lifting platform upwards. The rising lifting platform then moves the limit rod and support block upwards, aligning the tearing space with the protrusions on the protective film. At this point, the transport device continuously moves horizontally towards the tearing device. During the movement, the protrusion extends into the tearing space, and as the conveying device continues to move, the lifting end of the lifting device is simultaneously activated and lowered, causing the limit rod to pull the protective film downward, creating a certain angle between the protective film and the tempered glass film. At the same time, the tempered glass film will also be positioned above the limit rod due to the downward movement of the limit rod. As the conveying device continues to move, the protective film is peeled off by the limit rod and falls towards the collection box through the tearing space, allowing the protective film to fall into the collection box through the collection opening. In this way, the protective film detached from the tempered glass film will not fall randomly, and the staff only needs to clean the collection box periodically, making it more convenient for staff to collect the fallen protective film.

[0009] Furthermore, a correction device for correcting the tempered glass film is installed on the side of the support bracket away from the placement box.

[0010] Furthermore, the correction device includes a base plate, a drive motor, a transmission module, two connecting plates, a placement plate, two clamping strips, and a support shell. The base plate is fixedly mounted on the side of the support bracket away from the collection box. The drive motor is mounted on the bottom surface of the mounting plate, with its output end passing through the mounting plate. The transmission module is connected to the drive motor, which drives the transmission module to operate. The two connecting plates are respectively mounted on both sides of the transmission module, which drives the two connecting plates to move closer or further apart. The support shell is fixedly mounted on the mounting plate, with its edge corresponding to the edge of the mounting plate. The placement plate is mounted on the end of the support shell away from the mounting plate, with its edge corresponding to the edge of the placement plate. The side of the placement plate away from the support shell has a placement groove. The bottom surface of the placement plate has movable openings on both sides opposite the connecting plates, communicating with the placement groove. The two connecting plates extend into the placement groove through the movable openings. The two clamping strips are located on both sides inside the placement groove and are respectively fixedly connected to the two connecting plates.

[0011] While the above technical solutions significantly improve the tearing efficiency and yield by incorporating support blocks and limiting rods, the tempered glass film held by the conveying device may be tilted. This causes the protective film to pass through the limiting rods at an angle, potentially impacting the support bracket or the side wall of the collection box and causing it to jam, affecting subsequent tearing. Although widening the support bracket can solve this problem, it increases the overall width of the tearing device, limiting installation space. The corrective device addresses this issue. To address the technical issue, the corrective device is designed so that before the transport device moves above the film-tearing device, the transport device first places the tempered glass film on the placement plate, starts the drive motor, and drives the transmission module to operate. The operating transmission module drives the two connecting plates to move closer to each other, causing the two connecting plates to move the two clamping strips within the placement groove and bring them closer to each other. During the movement of the clamping strips, they contact both sides of the tempered glass film and clamp the tempered glass film, thus straightening it. This prevents the tempered glass film from becoming skewed, thereby preventing the protective film from getting stuck and affecting the subsequent film-tearing process.

[0012] Furthermore, the collection box is provided with a guide component on the side near the support bracket, the guide component being used to guide the detached protective film.

[0013] Furthermore, the guiding assembly includes a support plate and multiple guiding ramps. The support plate is fixedly disposed on the upper end of the collection box near the support bracket. All the guiding ramps are fixedly spaced on the upper surface of the support plate. The guiding ramps have inclined surfaces that slope downwards from the end of the guiding ramp near the support bracket to the end of the guiding ramp away from the support bracket.

[0014] By adopting the above technical solution and setting the guide component, the protective film separated from the tempered film by the limiting rod falls smoothly into the collection box through the inclined surface of the guide plate, so that the staff can collect and clean the protective film.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. By designing a film-tearing device, when the protective film of the tempered glass film needs to be removed, the conveying device picks up the tempered glass film and moves it directly above the film-tearing device. Through precise positioning, the protrusions of the protective film on the tempered glass film are aligned with the limiting rod. Subsequently, the conveying device continues to advance horizontally towards the film-tearing device. The protrusions first contact the limiting rod and undergo elastic deformation. As the horizontal movement continues, the protective film gradually separates from the tempered glass film under the obstruction of the limiting rod, ultimately achieving complete peeling of the protective film from the tempered glass film. Compared to traditional solutions, this device replaces active scraping or pulling actions with the passive blocking effect of the limiting rod, effectively avoiding local stress concentration during the film-tearing process. At the same time, the continuity of horizontal movement ensures the straightness and controllability of the separation path, significantly improving film-tearing efficiency and yield, simplifying the equipment structure, and reducing maintenance costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the embodiment; Figure 2 It is hidden Figure 1 A schematic diagram of the structure behind the supporting shell; Figure 3 This is another view of the overall structure of the embodiment.

[0017] Reference numerals: 1. Support bracket; 10. Support block; 11. Limiting rod; 12. Lifting opening; 2. Lifting assembly; 20. Lifting device; 21. Lifting platform; 3. Collection box; 4. Correction device; 40. Base plate; 41. Drive motor; 42. Transmission module; 43. Connecting plate; 44. Placement plate; 45. Clamping strip; 46. Support shell; 47. Placement groove; 5. Guide assembly; 50. Support plate; 51. Guide ramp; 52. Inclined surface. Detailed Implementation

[0018] The present application will be further described in detail below with reference to the accompanying drawings.

[0019] Reference Figure 1 An automatic film applicator includes a film-tearing device comprising a support bracket 1, two support blocks 10, and a limiting rod 11. The support bracket 1 is located inside the machine body and is fixedly installed on the machine body. The two support blocks 10 are respectively located on both sides of the top of the support bracket 1. The limiting rod 11 is located between the two support blocks 10 and its two ends are respectively fixedly connected to the two support blocks 10.

[0020] The limiting rod 11 can be installed on the support block 10 by bolts, welding or other fixing methods.

[0021] When the protective film needs to be removed from the tempered glass film, the conveying device picks up the tempered glass film and moves it directly above the film-tearing device. Through precise positioning, the protrusions of the protective film on the tempered glass film are aligned with the limiting rod 11. Subsequently, the conveying device continues to advance horizontally towards the film-tearing device. The protrusions first contact the limiting rod 11 and undergo elastic deformation. As the horizontal movement continues, the protective film gradually separates from the tempered glass film under the blocking action of the limiting rod 11, ultimately achieving complete peeling of the protective film from the tempered glass film. Compared with traditional solutions, this device replaces active scraping or pulling actions with the passive blocking action of the limiting rod 11, effectively avoiding local stress concentration during the film-tearing process. At the same time, the continuity of horizontal movement ensures the straightness and controllability of the separation path, which not only significantly improves the film-tearing efficiency and yield, but also simplifies the equipment structure and reduces maintenance costs.

[0022] The aforementioned handling device consists of a three-axis robotic arm and a suction cup assembly. The three-axis robotic arm is installed inside the machine body on the side opposite to the picking opening. The suction cup assembly is installed on the moving end of the three-axis robotic arm. The suction cup assembly includes a suction cup and a suction pump. By activating the suction pump to evacuate the air inside the suction cup, the suction cup can be used to adhere to the tempered glass film, thereby achieving the purpose of handling the tempered glass film.

[0023] In other embodiments, the film-tearing device includes a film-tearing electric cylinder, a film-tearing air pump, and a film-tearing nozzle. The film-tearing electric cylinder is mounted on the support bracket 1 with its output end facing upwards. The film-tearing air pump is fixedly mounted on the output end of the film-tearing electric cylinder, and the film-tearing nozzle is fixedly mounted on the output end of the film-tearing air pump with its adsorption surface facing upwards. When the conveying device moves the tempered glass film above the film-tearing device, the output end of the film-tearing electric cylinder extends, causing the film-tearing electric cylinder to push the film-tearing air pump upwards. The rising film-tearing air pump drives the film-tearing nozzle to adhere to the protective layer of the tempered glass film. Then, the film-tearing air pump starts, causing the film-tearing nozzle to adsorb the protective layer of the tempered glass film. At this time, the conveying device moves horizontally and continuously towards the film-tearing device. As the conveying device moves, the protective film gradually separates from the tempered glass film, thus achieving the removal of the protective film from the adhesive layer of the tempered glass film. On the one hand, since the embodiment of the film-peeling suction nozzle actively adsorbs the protective film, the tempered film may be pulled during the continuous horizontal movement of the transport device towards the film-peeling device, causing the tempered film to skew on the transport device and affecting subsequent film application. In this embodiment, the film is peeled off by using the limiting rod 11 in conjunction with the movement of the transport device. During the entire process, the protective film is passively peeled off after hitting the limiting rod 11. This makes the resistance experienced by the tempered film during the movement of the transport device lower than that of the embodiment of the film-peeling suction nozzle. Therefore, the film-peeling device in this embodiment has higher stability of the tempered film on the transport device during the film-peeling process and less skewness of the tempered film compared to the embodiment of the film-peeling suction nozzle. It can be selected according to the needs in practical applications.

[0024] Although the film-tearing device can remove the protective film from the adhesive layer of the tempered glass film, the protective film falls off randomly after detaching from the tempered glass film, making it difficult for workers to collect the fallen protective film. To solve this technical problem, this embodiment has a lifting opening 12 at the top of the support bracket 1. A lifting assembly 2 is installed inside the support bracket 1. A collection box 3 is provided on the side of the support bracket 1 away from the transport device. The collection opening of the collection box 3 faces upward. The collection box 3 is used to collect the detached protective film. The lifting assembly 2 includes a lifting device 20 and a lifting platform 21. The lifting end of the lifting device 20 is set facing the lifting opening 12. The lifting platform 21 is fixedly installed on the lifting end of the lifting device 20. Two support blocks 10 are set on the support bracket 1 through the lifting platform 21. The two support blocks 10 are respectively fixedly set on both sides of the lifting platform 21. A gap is left between the limiting rod 11 and the surface of the lifting platform 21, and this gap forms the film-tearing space.

[0025] The support bracket 1 can be installed on the lifting platform 21 by bolts, welding, or other fixing methods. The collection box 3 can be installed on the support bracket 1 by bolts, welding, or other fixing methods. The lifting platform 21 can be installed on the lifting end of the lifting device 20 by bolts, welding, or other fixing methods. The lifting device 20 can be an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

[0026] With the lifting assembly 2 in place, when the transport device moves the tempered glass film above the film-tearing device, the lifting end of the lifting device 20 is activated to rise, causing the lifting end to push the lifting platform 21 to rise. The rising lifting platform 21 drives the limiting rod 11 and the support block 10 to rise, so that the film-tearing space is aligned with the protrusion on the protective film. At this time, the transport device moves horizontally and continuously towards the film-tearing device. During this process, the protrusion extends into the film-tearing space. As the transport device continues to move, the lifting end of the lifting device 20 is activated to descend, causing the limiting rod 11 to pull the protective film downward, so that a certain angle is formed between the protective film and the tempered glass film. At the same time, the tempered glass film will also be located above the limiting rod 11 due to the downward movement of the limiting rod 11. As the transport device continues to move, the protective film is peeled off by the limiting rod 11 and falls towards the collection box 3 through the film-tearing space. The protective film falls into the collection box 3 through the collection opening. In this way, the protective film that has detached from the tempered glass film will not fall randomly. The staff only needs to clean the collection box 3 periodically, making it more convenient for the staff to collect the fallen protective film.

[0027] Although the support block 10 and the limiting rod 11 significantly improve the tearing efficiency and yield, the tempered glass film held by the conveying device may be tilted. This causes the protective film of the tempered glass film to pass through the limiting rod 11 at an angle. The tilted protective film may collide with the side wall of the support bracket 1 or the collection box 3, causing the protective film to get stuck and affecting subsequent tearing. Although making the support bracket 1 wider can solve this technical problem, it will increase the width of the entire tearing device, thus limiting the installation space of the tearing device. To solve this technical problem, refer to Figure 2In this embodiment, a straightening device 4 for straightening tempered glass film is installed on the side of the support bracket 1 away from the placement box. The straightening device 4 includes a base plate 40, a drive motor 41, a transmission module 42, two connecting plates 43, a placement plate 44, two clamping strips 45, and a support shell 46. The base plate 40 is fixedly installed on the side of the support bracket 1 away from the collection box 3. The drive motor 41 is installed on the bottom surface of the mounting plate and its output end passes through the mounting plate. The transmission module 42 is connected to the drive motor 41, and the drive motor 41 is used to drive the transmission module 42 to operate. The two connecting plates 43 are respectively installed on both sides of the transmission module 42, and the transmission module 42 is used for... The two connecting plates 43 are driven to move closer or further apart. The supporting shell 46 is fixedly installed on the mounting plate with its edge corresponding to the edge of the mounting plate. The placement plate 44 is installed on the end of the supporting shell 46 away from the mounting plate with its edge corresponding to the edge of the placement plate 44. The side of the placement plate 44 away from the supporting shell 46 has a placement groove 47. The bottom surface of the placement plate 44 has movable openings on both sides opposite to the connecting plates 43 that communicate with the placement groove 47. The two connecting plates 43 extend into the placement groove 47 through the movable openings. The two clamping bars 45 are located on both sides inside the placement groove 47 and are fixedly connected to the two connecting plates 43 respectively.

[0028] The base plate 40 can be mounted on the support bracket 1 using bolts, welding, or other fixing methods. The drive motor 41 can be mounted on the base plate 40 using bolts, snap-fit, or other detachable fixing methods. The transmission module 42 specifically includes two synchronous pulleys and a synchronous belt. The two synchronous pulleys are located on the side of the base plate 40 opposite to the drive motor 41 and are rotatably mounted on the base plate 40. One of the synchronous pulleys is fixedly connected to the output end of the drive motor 41. The synchronous belt is fitted onto the synchronous pulley at both ends for rotation with the synchronous pulley. The two connecting plates 43 are both fixedly mounted on the synchronous belt. The support housing 46 can be mounted on the base plate 40 using bolts, welding, or other fixing methods. The placement plate 44 can be mounted on the support housing 46 using bolts, welding, or other fixing methods. The clamping strip 45 can be mounted on the connecting plate 43 using bolts, welding, or other fixing methods.

[0029] With the setting of the correction device 4, before the transport device moves above the film-tearing device, the transport device first places the tempered glass film on the placement plate 44, starts the drive motor 41, and drives the transmission module 42 to operate. The operating transmission module 42 drives the two connecting plates 43 to move closer to each other, so that the two connecting plates 43 drive the two clamping strips 45 to move and move closer to each other in the placement groove 47. During the movement of the clamping strips 45, they contact both sides of the tempered glass film and clamp the tempered glass film to make the tempered glass film return to the correct position. This can prevent the tempered glass film from being skewed, and thus prevent the protective film from getting stuck and affecting the subsequent film-tearing.

[0030] In this embodiment, the collection box 3 is provided with a guide component 5 on the side near the support bracket 1. The guide component 5 is used to guide the detached protective film. (Refer to...) Figure 3 The guide assembly 5 includes a support plate 50 and multiple guide ramps 51. The support plate 50 is fixedly installed on the upper end of the collection box 3 near the support bracket 1. All guide ramps 51 are fixedly spaced on the upper surface of the support plate 50. Each guide ramp 51 has an inclined surface 52, which slopes downward from the end of the guide ramp 51 near the support bracket 1 to the end of the guide ramp 51 away from the support bracket 1.

[0031] By setting the guide component 5, the protective film separated from the tempered film by the limiting rod 11 and passing through the inclined surface 52 of the guide ramp 51 can fall smoothly into the collection box 3, so that the staff can collect and clean the protective film.

[0032] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A film-peeling device for an automatic film applicator, characterized in that, It includes a support bracket, two support blocks, and a limiting rod. The support bracket is located inside the machine body and is fixedly installed on the machine body. The two support blocks are respectively set on both sides of the top of the support bracket. The limiting rod is located between the two support blocks and its two ends are respectively fixedly connected to the two support blocks.

2. The film-peeling device for an automatic film applicator according to claim 1, characterized in that, The support bracket has a lifting opening at the top and a lifting assembly is installed inside the support bracket. A collection box is provided on the side of the support bracket away from the conveying device. The collection opening of the collection box faces upward and is used to collect the detached protective film.

3. The film-peeling device for an automatic film applicator according to claim 2, characterized in that, The lifting assembly includes a lifting device and a lifting platform. The lifting end of the lifting device faces the lifting opening. The lifting platform is fixedly installed on the lifting end of the lifting device. Two support blocks are set on the support bracket through the lifting platform. The two support blocks are respectively fixed on both sides of the lifting platform. There is a gap between the limiting rod and the surface of the lifting platform, and this gap forms a tearing space.

4. The film-peeling device for an automatic film applicator according to claim 2, characterized in that, The support bracket is equipped with a correction device for correcting the tempered glass film on the side opposite to the placement box.

5. The film-peeling device for an automatic film applicator according to claim 4, characterized in that, The correction device includes a base plate, a drive motor, a transmission module, two connecting plates, a placement plate, two clamping strips, and a support shell. The base plate is fixedly mounted on the side of the support bracket away from the collection box. The drive motor is mounted on the bottom surface of the mounting plate, with its output end passing through the mounting plate. The transmission module is connected to the drive motor, which drives the transmission module to operate. The two connecting plates are respectively mounted on both sides of the transmission module, which drives the two connecting plates to move closer or further apart. The support shell is fixedly mounted on the mounting plate, with its edge corresponding to the edge of the mounting plate. The placement plate is mounted on the end of the support shell away from the mounting plate, with its edge corresponding to the edge of the placement plate. The side of the placement plate away from the support shell has a placement groove. The bottom surface of the placement plate has movable openings on both sides opposite the connecting plates, communicating with the placement groove. The two connecting plates extend into the placement groove through the movable openings. The two clamping strips are located on both sides inside the placement groove and are respectively fixedly connected to the two connecting plates.

6. The film-peeling device for an automatic film applicator according to claim 2, characterized in that, The collection box is provided with a guide component on the side near the support bracket, which is used to guide the detached protective film.

7. The film-peeling device for an automatic film applicator according to claim 6, characterized in that, The guiding assembly includes a support plate and multiple guide ramps. The support plate is fixedly installed on the upper end of the collection box near the support bracket. All the guide ramps are fixedly spaced on the upper surface of the support plate. Each guide ramp has an inclined surface that slopes downward from the end of the guide ramp near the support bracket to the end of the guide ramp away from the support bracket.

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