Screen display glass double-sided film tearing device

Abstract

The present invention relates to a double-sided film-removing device for display glass, comprising a lower film-removing system and an upper film-removing system. On one hand, the invention utilizes the multi-motion cooperation of grippers and rollers to gradually peel away the corners of the film to be removed while maintaining alignment of the rolling and peeling positions under airflow. This significantly reduces the probability of adhesive detaching from the film or causing corner tearing, effectively improving the success rate of forming a peeling corner. Simultaneously, the relative movement between the glass and grippers forms a diagonal film-removing mechanism, reducing the risk of protective film tearing or detachment and making film removal more labor-saving and efficient. On the other hand, the film-removing clamp holds the already peeled film and, in conjunction with airflow, detaches the adhesive from the grippers to improve the success rate of film removal. Furthermore, the reverse-layout upper and lower film-removing systems, with their self-supporting platforms, enable flip-free switching of the film-removing direction. This not only significantly reduces the risk of glass contamination or collision and improves product yield but also ensures stable and continuous double-sided film removal of multiple glass panels, greatly enhancing film-removing efficiency.

Description

Technical Field

[0001] This invention belongs to the field of display glass processing technology, specifically relating to a double-sided film peeling device for display glass. Background Technology

[0002] A display screen typically consists of multiple functional layers and a liquid crystal display panel. The liquid crystal display panel is used as a carrier for assembling other components. That is, the protective film on the display glass needs to be removed before assembly.

[0003] Currently, the specific steps for removing the screen protector are as follows:

[0004] S1, Lifting Corner

[0005] A peeling tape is used to adhere to a corner of the protective film on the display glass. Then, a peeling clip is used to hold the peeling tape and move it relative to the display glass so that the peeling tape causes the protective film to lift up from the corner to form a flipped corner.

[0006] S2, Tear off

[0007] Then, based on the tearing claws moving relatively away from the display glass and diagonally towards the corner, the protective film is gradually peeled off the surface of the display glass;

[0008] S3, Film collection

[0009] The protective film is held by a film-collecting gripper, and the film-tearing gripper works in conjunction with the film-collecting gripper to release the film-tearing tape from the film-tearing gripper. The protective film is then released into the film-collecting frame as the film-collecting gripper releases.

[0010] However, the following technical defects exist in the process of peeling off the aforementioned protective film:

[0011] 1) During the initial corner-lifting process, the force is concentrated on the film-tearing tape. When the interfacial adhesion force between the tape and the protective film is less than the peeling force required for corner lifting, it is easy for the tape and the protective film to peel off and fail, while the non-protective film separates from the screen glass substrate. Therefore, the result is not only that an effective corner cannot be formed, but also that the tape falls off, resulting in a low success rate of corner lifting in the initial stage of the process.

[0012] 2) During the peeling process, the display glass is in a static state. The peeling is a simple stretching process in one point and one direction. The peeling angle and force cannot be adjusted, which makes the direction and magnitude of the peeling force uncontrollable. It is very easy to form stress concentration inside the protective film. When it exceeds the cohesive strength of the protective film, tearing will occur. Or when the direction of the force deviates from the optimal peeling angle, the effective peeling force is insufficient, which leads to the interruption of peeling. At the same time, once uneven adhesion or wrinkles occur, the static display glass cannot be adjusted. All error correction relies solely on the grippers, which greatly increases the difficulty and risk of interruption in smooth and continuous peeling.

[0013] 3) After the film is peeled off, not only is it difficult for the adhesive to detach from the gripper, but also because the protective film is a large-area flexible film, it is likely to fall uncontrollably onto the film peeling gripper or equipment frame due to lack of restraint and generate electrostatic adsorption. It is difficult to automatically detach and collect the protective film by releasing the gripper, and manual intervention is required to clean it, which directly affects the continuity of peeling off the remaining protective films.

[0014] 4) After removing one film, the display glass needs to be flipped over to repeat the steps to remove the other film. This not only requires repositioning, making the operation cumbersome and the film removal efficiency low, but also increases the risk of glass surface contamination or accidental collision, affecting the product yield. Summary of the Invention

[0015] The purpose of this invention is to overcome the shortcomings of the prior art and provide an improved double-sided film peeling device for display glass.

[0016] To achieve the above objectives, the present invention adopts the following solution:

[0017] A double-sided film-removing device for display glass includes a lower film-removing system for the film to be removed facing downwards and an upper film-removing system for the film to be removed facing upwards. The upper and lower film-removing systems have the same structure but are arranged in opposite directions. The lower film-removing system includes a loading unit and a film-removing unit. The loading unit includes a platform for positioning the display glass from the film-removing downwards and a moving mechanism. The film-removing unit is located below the platform and includes a film-removing mechanism, a power unit, and a film-removing chuck. The film-removing mechanism includes a base, grippers, rollers, and a blowing assembly. The grippers pick up adhesive pieces one by one, wherein the adhesive has an adhesive portion protruding from the grippers with the adhesive side facing upwards. Based on the movement of the grippers, the adhesive portion adheres to the film to be removed to form an adhesive segment and an extension segment. The power unit includes a first power component and a second power component. Based on the first and second power components, the grippers tilt downwards and move inwards, the extension segment rotates accordingly, and the rollers move inwards to roll the adhesive segment. Under the airflow blown between the film to be removed and the display glass, the device achieves coordinated movement. The system maintains alignment between the rolling position on the adhesive section and the peeling position of the film to be peeled. When peeling the film to near the inner end of the adhesive section, the clamping position of the adhesive is located inside the peeling position of the film to be peeled. The film to be peeled forms a peeling angle that curves inward and downward from the corner. The second power unit and the moving mechanism work together to drive the film to be peeled gradually away from the display glass diagonally below the peeling angle. The film removal clamp holds the peeled film and works with the blowing component to remove the adhesive from the clamp. The platforms of the upper and lower film removal systems are docked to switch the film to be peeled from the display glass. The upper film removal system, based on the upward and inward movement of the clamp, the follow-up rotation of the outer extension section, the inward movement of the roller rolling the adhesive section, and the airflow blown between the film to be peeled and the display glass, causes the film to form a peeling angle that curves inward and upward from the corner. The second power unit and the moving mechanism work together to drive the film to be peeled gradually away from the display glass diagonally above the peeling angle. The film removal clamp holds the peeled film and works with the blowing component to remove the adhesive from the clamp.

[0018] According to a specific embodiment and preferred aspect of the invention, a film-removing chuck is disposed on the diagonal side of the angle at which the film to be removed is torn, and the removed film is passed through the clamping area formed by the film-removing chuck based on the movement of the grippers. Here, the removal of the film through the clamping area formed by the film-removing chuck based on the movement of the grippers ensures that the film can be promptly grasped by the film-removing chuck when it is completely removed from the display glass, thereby increasing the probability of film removal.

[0019] Preferably, the film removal clamp includes two clamping bodies that form a clamping area at a distance, and a first driving component that drives the two clamping bodies to clamp or open relative to each other. When the film is peeled off to the diagonal of the peeling angle, the two clamping bodies simultaneously clamp onto the corresponding position on the peeled film. That is, the film is clamped by the two clamping bodies in advance when the screen glass is completely peeled off, so that the film can be accurately clamped based on the fact that the diagonal of the peeling angle of the film to be peeled off is still under the attachment constraint with the screen glass, and the peeled film is prevented from detaching from the clamping area between the two clamping bodies when it is completely peeled off.

[0020] Preferably, the two clamping bodies are capable of rotating up and down and clamping or opening relative to each other from the lower end; and / or, the decoction chuck further includes a second driving component that drives the two clamping bodies to move in the opposite direction to the display glass. Here, clamping or opening at the lower end facilitates the dropping and collection of the decoction film from the decoction chuck; at the same time, the opposite movement of the two clamping bodies to the display glass matches the requirements for decoction of display glass of different specifications.

[0021] According to another specific embodiment and preferred aspect of the present invention, the grippers have an installation space formed thereon, and a plurality of guide grooves communicating with the installation space are formed from the gripping end. The airflow nozzles of the blowing assembly are disposed in the installation space. When peeling the film, the airflow blown out by the nozzles is directed through the plurality of guide grooves towards the space between the film to be peeled and the display glass. Here, the airflow is dispersed to avoid turbulence that could cause the peeled portion of the protective film to vibrate and lead to adhesive detachment.

[0022] Preferably, the gripper comprises two gripper bodies spaced apart vertically to form an installation space, wherein the inner wall of the gripper body opposite the adhesive surface is recessed to form a guide groove. This not only facilitates airflow coordination to form a separation angle, but also allows the airflow to act synchronously on the adhesive as the gripper opens during film removal, thus blowing off the adhesive and the removed film. The structure is simple and easy to implement.

[0023] According to another specific embodiment and preferred aspect of the invention, the roller forms an inward rolling and bonding of the outer end of the self-adhesive section based on the combined upward and downward motion, and when a separation angle is formed, the roller resets to detach from the adhesive section.

[0024] Preferably, as the film to be peeled gradually separates diagonally from the peeling angle, the grippers move horizontally inward to keep the peeling angle constant, or the grippers move inward and gradually rotate upward to gradually decrease the peeling angle. Here, the peeling angle remains constant to ensure stable tearing force, or the horizontal component of the force can be gradually increased by gradually decreasing the peeling angle, thereby gradually improving the peeling ability of the protective film.

[0025] According to another specific embodiment and preferred aspect of the present invention, the first power member includes a flipping power member that drives the base and causes the gripper and roller to rotate synchronously around a horizontal centerline, and a telescopic power member that is fixed relative to the base and used to drive the roller to move up and down. As the gripper rotates, the telescopic power member synchronously drives the roller to move obliquely upward and inward to roll the bonding section inward while maintaining a constant rolling pressure. Here, with the synchronous rotation of the gripper and roller, not only is it achieved that the two do not interfere with each other, increasing reliability; at the same time, based on the height compensation formed by the telescopic power member, the roller is able to offset inward while maintaining a constant rolling pressure.

[0026] Preferably, in the orthographic projection along the extension direction of the horizontal centerline, the angle between the line connecting the center of the roller and the horizontal centerline and the direction of roller extension / retraction is acute; and / or, the rolling area formed by the roller covers the width of the adhesive section. Here, it is ensured that the roller remains inward when extending upward, while achieving full-coverage rolling bonding of the adhesive section in the rolling position along its width.

[0027] Preferably, the moving mechanism drives the display glass to move linearly along the long or short side; the second power component includes a lateral moving force component that drives the film-tearing mechanism to move laterally along the short and / or long side of the display glass, and a lifting power component that drives the film-tearing mechanism to move up and down.

[0028] Preferably, during peeling, in orthographic projection on a horizontal plane, based on the relative motion between the peeling mechanism and the display glass, the film to be peeled off is gradually peeled off along the diagonal direction of the display glass; and / or, the second power component further includes a rotary power component that drives the peeling mechanism to rotate around a vertical centerline to adjust the adhesive bonding direction. Here, peeling along the diagonal direction ensures that the portion of the protective film located on both sides of the diagonal is subjected to uniform force, which is more conducive to the protective film detaching from the display glass.

[0029] Preferably, during bonding, the adhesive surface of the bonding section intersects with the two sides corresponding to the corner of the film to be peeled. This ensures that the film to be peeled is lifted from the edge by force to form a peeling angle.

[0030] Preferably, in the orthographic projection on the horizontal plane, the center line of the adhesive section coincides with the diagonal of the film to be peeled off.

[0031] According to another specific embodiment and preferred aspect of the present invention, the moving mechanism of the lower peeling film system includes a first moving track extending horizontally along the long side of the display glass and a second moving track movably connected to the first moving track and extending vertically. The platform of the lower peeling film system is movably connected to the second moving track. Based on the dynamic cooperation of the first and second moving tracks, the display glass can move horizontally along its own long side and vertically up and down. The moving mechanism of the upper peeling film system includes a third moving track disposed below the first moving track and aligned from one end. The platform of the upper peeling film system is movably connected to the third moving track. When switching the surface of the display glass to be peeled, the platforms of the upper and lower peeling film systems are aligned vertically, and the platform of the lower peeling film system moves downwards to transfer the display glass onto the platform of the upper peeling film system. This improves the positional accuracy of the transferred display glass, ensuring the peeling accuracy of the film on the upper surface of the display glass.

[0032] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0033] In the initial corner-lifting process, existing technologies concentrate the force on the adhesive tape. When the interfacial adhesion between the tape and the protective film is less than the peeling force required for corner lifting, the tape easily peels off from the protective film, while the non-protective film separates from the glass substrate. Therefore, this not only fails to form an effective corner but also directly causes the tape to detach, resulting in a low success rate of corner lifting in the initial stage. In the tearing step, the glass is in a static state, and tearing is a simple, single-point, unidirectional stretching process. The tearing angle and force cannot be adjusted, leading to uncontrollable tearing force direction and magnitude. This easily creates stress concentration within the protective film, which, when it exceeds the film's cohesive strength, causes tearing. Alternatively, when the force direction deviates from the optimal peeling angle, the effective peeling force is insufficient, causing tearing to interrupt. If uneven adhesion or wrinkles occur, the stationary glass cannot be adjusted, and all corrections rely solely on the grippers, greatly increasing the difficulty and risk of interruption in achieving smooth and continuous peeling. After peeling, not only is it difficult for the adhesive to detach from the grippers, but because the protective film is a large-area flexible film, it is prone to falling uncontrollably onto the peeling grippers or equipment frame due to a lack of restraint, resulting in electrostatic adsorption. This makes it difficult for the protective film to be automatically detached and collected by the grippers, requiring manual intervention for cleaning, which directly affects the continuity of peeling off the remaining protective films. After peeling off one side of the film, the display glass needs to be flipped over to peel off the other side, which not only requires repositioning, making the operation cumbersome and the peeling efficiency low, but also increases the risk of glass surface contamination or accidental collisions, affecting the product yield.This application provides an overall structural design for a double-sided film-removing device for display glass, cleverly addressing the shortcomings and defects of existing technologies. Using this device, the film to be removed from the display glass is first peeled off with the glass facing downwards. The display glass is positioned on the platform of the lower film-removing system with the film to be removed facing downwards. The grippers pick up the adhesive, causing the adhesive portion to protrude with the adhesive surface facing upwards. Based on the movement of the grippers, the adhesive portion adheres to the film to be removed, forming an adhesive section and an extended section. The first and second power components coordinate the downward and inward movement of the grippers, the follow-up rotation of the extended section, and the inward movement of the rollers to roll the adhesive section. Under the airflow blowing between the film to be removed and the display glass, the rolling position on the adhesive section is kept aligned with the peeling position of the film to be removed. When peeled away to near the inner end of the adhesive section, the gripping position of the adhesive is located inside the peeling position of the film to be removed, forming a peeling angle that curves inwards and downwards from the corner. The second power component, in cooperation with the moving mechanism, drives the film to be removed diagonally opposite the peeling angle. The lower part of the screen glass is gradually peeled away, and the film removal chuck holds the peeled film, working in conjunction with the blowing component to detach the adhesive from the grippers. Then, the upper and lower film removal systems are docked to switch the surface of the screen glass to be peeled. Next, the film to be peeled off with the screen glass facing upwards is removed, and the grippers pick up the adhesive, causing the adhesive part to protrude with the adhesive side facing downwards. Based on the first and second power components, the grippers flip upwards and move inwards, the outer extension section follows up with flipping, and the roller moves inwards to roll and press the adhesive section. Under the airflow blowing between the film to be peeled and the display glass, the rolling position on the adhesive section and the peeling position of the film to be peeled are kept aligned. When the film is peeled off to near the inner end of the adhesive section, the clamping position of the adhesive is located inside the peeling position of the film to be peeled off. The film to be peeled off forms a peeling angle that curves inward and upward from the corner. The second power unit and the moving mechanism work together to drive the film to be peeled off gradually from the display glass diagonally above the peeling angle. The film removal chuck holds the peeled film and works with the blowing component to remove the adhesive from the gripper. Therefore, compared with the prior art, this invention, on the one hand, is based on the multi-motion cooperation of the grippers and rollers, maintaining the alignment of the rolling and peeling positions under airflow to gradually peel off the corner of the film to be peeled, greatly reducing the probability of adhesive detaching from the film or causing the corner of the film to be peeled to tear, effectively improving the success rate of forming the peeling corner of the film; at the same time, based on the relative movement between the display glass and the grippers to form diagonal film peeling, it not only reduces the risk of protective film tearing or falling off, but also makes film peeling more labor-saving and efficient; on the other hand, based on the film peeling chuck holding the peeled film and cooperating with airflow to detach the adhesive from the grippers to improve the film peeling success rate, and combined with the reverse layout of the upper and lower film peeling system self-loading stage docking to achieve flip-free switching of the direction of the film to be peeled, it not only significantly reduces the risk of glass contamination or collision and improves the product yield, but also ensures the stable and continuous implementation of double-sided film peeling of multiple pieces of glass, greatly improving the film peeling efficiency. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the double-sided film-removing device for display glass in this embodiment;

[0035] Figure 2 for Figure 1 Front view diagram;

[0036] Figure 3 for Figure 1 Enlarged schematic diagram of a portion of the middle and lower tear-off film system;

[0037] Figure 4 for Figure 3 Enlarged schematic diagram of a portion of the tear-off film mechanism;

[0038] Figure 5 for Figure 3 The film-tearing process of the film-tearing mechanism is simple. Figure 1 ;

[0039] Figure 6 for Figure 3 The film-tearing process of the film-tearing mechanism is simple. Figure 2 ;

[0040] Figure 7 for Figure 3 The film-tearing process of the film-tearing mechanism is simple. Figure 3 (Forming a separation angle);

[0041] The system comprises: ① Lower film-tearing system; ② Upper film-tearing system; 1. Loading unit; 10. Platform; 11. Moving mechanism; 111. First moving track; 112. Second moving track; 113. Third moving track; 2. Film-tearing unit; 20. Film-tearing mechanism; 200. Base; 201. Gripper; a0. Gripper body; a00. Guide channel; a1. Driving component; 202. Roller; 203. Blowing assembly; z. Nozzle; 21. Power unit; 211. First power component; b0. Tilting power component; b1. Telescopic power component; 212. Second power component; c0. Lateral movement power component; c01. First power track; c02. Second power track; c1. Lifting power component; c2. Rotating power component; 22. Film-removing chuck; 220. Clamping body; 221. First driving component; 222. Second driving component;

[0042] B, Display glass; m, Film to be peeled off; t, Adhesive; t0, Adhesive part; t01, Adhesive section; t02, Extension section; t1, Clamping part. Detailed Implementation

[0043] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application 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 application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0044] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0047] In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of a second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" a second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "above," "below," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0048] like Figures 1 to 7 As shown, the double-sided film-removing device for display glass in this embodiment includes a lower film-removing system ① for the film to be removed m facing downwards and an upper film-removing system ② for the film to be removed m facing upwards.

[0049] Specifically, the lower film-tearing system ① and the upper film-tearing system ② each include a loading unit 1 and a film-tearing unit 2, wherein the loading unit 1 and the film-tearing unit 2 in the lower film-tearing system ① and the upper film-tearing system ② have the same structure and are arranged in opposite directions.

[0050] The following detailed description of the loading unit 1 and tearing unit 2 in the lower tearing system ① will also clarify the structure of the loading unit 1 and tearing unit 2 in the upper tearing system ②.

[0051] In this example, the loading unit 1 in the film-peeling system ① includes a platform 10 for positioning the display glass with the film to be peeled facing downwards and a moving mechanism 11. The platform 10 is equipped with a vacuum suction cup at its bottom. Under the transport of a conventional horizontal transmission line located below the platform 10, the display glass B is transferred piece by piece and horizontally adsorbed onto the vacuum suction cup. The moving mechanism 11 is a horizontal power track extending along the long side of the display glass B. The moving mechanism 11 drives the platform 10 to move the display glass B along its own long side.

[0052] In some specific embodiments, the platforms of the lower peeling film system ① and the upper peeling film system ② are docked to complete the switching of the screen display glass to be peeled film surface; the moving mechanism 11 of the lower peeling film system ① includes a first moving track 111 extending horizontally along the long side of the screen display glass and a second moving track 112 movably connected to the first moving track 111 and extending vertically, wherein the platform 10 of the lower peeling film system ① is movably connected to the second moving track 112, and based on the dynamic cooperation of the first moving track 111 and the second moving track 112, the screen display glass B can move horizontally and vertically along its own long side, respectively. The upper and lower tear film system ② has a vertical movement. Its moving mechanism 11 includes a third moving track 113 positioned below the first moving track 111 and aligned with one end. The platform 10 of the upper tear film system ② is movably connected to the third moving track 113. When switching the surface of the display glass to be peeled, the platforms of the upper and lower tear film systems are aligned vertically, and the platform 10 of the lower tear film system ① transfers the display glass downwards onto the platform 10 of the upper tear film system ②. In other words, by simply presetting the docking positions of the upper and lower platforms 10, the display glass can be accurately transferred and the upper tear film switched after the lower tear film is peeled off. This improves the positional accuracy of the display glass transfer, ensuring the precision of peeling off the film on the upper surface of the display glass.

[0053] In this example, the film-tearing unit 2 in the lower film-tearing system ① is located below the stage 10 and includes a film-tearing mechanism 20, a power unit 21, and a film-removing clamp 22. The film-tearing mechanism 20 includes a base 200, a gripper 201, a roller 202, and a blowing assembly 203. The gripper 201 picks up adhesive patches t one by one. The adhesive patch t has an adhesive portion t0 protruding from the gripper 201 with the adhesive surface facing upwards, and a non-adhesive clamping portion t1 held on the gripper 201. Based on the movement of the gripper 201, the adhesive portion t0 forms an adhesive segment t01 that fits the corner of the film to be peeled and an extended segment t02 that extends beyond the film to be peeled and has no adhesive. The roller 202 is used for rolling and bonding the adhesive segment t01 with the film to be peeled. The power unit 21 includes a first power component 211 and a second power component 212. The adhesive segment t01 is based on the first power component 211 and the second power component 212. The movement of the gripper 201 formed by the power component 212 flips downward and moves inward, the outer extension t02 flips accordingly, and the roller 202 moves inward to roll the adhesive section t01. Under the airflow generated by the blowing component 203 between the film to be peeled and the display glass, the rolling position on the adhesive section t01 and the peeling position of the film to be peeled are kept aligned. When the film is peeled off to near the inner end of the adhesive section t01, the clamping position of the adhesive is located inside the peeling position of the film to be peeled off. The film to be peeled off forms a peeling angle that curves inward from the corner (i.e., the angle formed between the peeled part and the unpeeled part on the film to be peeled off). The second power component 212 cooperates with the moving mechanism 11 to make the film to be peeled off gradually peel off the display glass diagonally below the peeling angle. Then, the film removal clamp 22 clamps the peeled film to cooperate with the blowing component to remove the adhesive t from the gripper 201.

[0054] In some specific embodiments, this embodiment uses a conventional adhesive feeder (e.g., a feeder feeder). The gripper 201 picks up the adhesive pieces t one by one from the adhesive feeder. The gripper 201 includes two gripper bodies a0 arranged vertically and a driving member a1 that drives the two gripper bodies a0 to clamp or open relative to each other. One end of the two gripper bodies a0 forms a flat gripping end, and the clamping part t1 is clamped between the flat gripping ends. The roller 202 is located inside the gripper 201 and is a roller that can roll freely around its own center line. As the gripper 201 flips downward, the roller 202 maintains a constant rolling pressure and synchronously rolls from the outer end of the adhesive section t01 inward. The rolling pressure formed by the roller 202 on the adhesive section t01 remains unchanged, and the rolling area formed by the roller 202 covers the width of the adhesive section. Here, it is ensured that the adhesive bonding area is under stable force to prevent the adhesive from falling off the gripper due to changes in roller pressure; at the same time, a rolling bonding from the outside to the inside is formed to ensure that the adhesive area is firmly bonded to the film to be peeled off.

[0055] During bonding, the adhesive surface of the bonding segment t01 intersects with the two sides corresponding to the corner of the film to be peeled, and in the orthographic projection on the horizontal plane, the center line of the bonding segment t01 coincides with the diagonal of the film to be peeled m. Here, it is ensured that the film to be peeled is lifted from the edge by force to form a peeling angle.

[0056] Meanwhile, it should be noted that the adhesive bonding t in this embodiment is based on the follow-up flipping of the outer extension segment t02 to increase the flipping angle and flipping space of the gripper 201, avoiding interference between the gripper 201 and the roller 202 due to positioning errors causing the clamping position to be too close to the adhesive part t0. At the same time, when the angle between the outer extension segment t02 and the display glass B is greater than or equal to 30°, the adhesive segment t01 drives the corner of the protective film to begin to peel off. The peeling at this time not only facilitates the inward flipping and peeling of the corner of the protective film, but also avoids relative peeling between the adhesive segment and the protective film.

[0057] In this example, during the corner-lifting stage, the blowing airflow generated by the blowing assembly 203 enters between the film to be peeled and the display glass to assist in forming a peeling angle. Furthermore, during the film-removal stage, the blowing airflow generated by the blowing assembly 203 cooperates to detach the adhesive from the grippers. This not only facilitates the peeling of the film to form a peeling angle but also, due to the airflow effect, reduces the probability of the protective film re-adhering to the display glass during subsequent film-removal processes.

[0058] In some specific embodiments, an installation space is formed between the portions of the two claw bodies a0 away from the clamping end. The nozzle z of the blowing assembly 203 is disposed in the installation space between the two claw bodies a0 and the nozzle faces the clamping end of the claw. The inner wall of the clamping end of the claw body a0 opposite to the adhesive surface is recessed inward to form multiple guide grooves a00 arranged side by side and communicating with the installation space. When the adhesive is clamped, the adhesive is clamped between the upper surface of the inner portion of the clamping end and the multiple guide grooves a00 to form multiple guide channels. Therefore, during the film peeling process, the airflow blown from the nozzle z flows along the multiple guide channels to blow towards the space where the film to be peeled is separated from the display glass. The airflow is dispersed and blown out to avoid turbulence that could cause the peeled part of the protective film to vibrate and cause the adhesive to fall off.

[0059] Simultaneously, after the film is peeled off, the two claw bodies a0 release the adhesive, and the airflow from the nozzle z blows off the adhesive and the peeled film. Here, the airflow acts synchronously on the adhesive as the claws open, causing the adhesive and the peeled film to be blown off by themselves. The structure is simple and easy to implement.

[0060] To improve clamping stability, the two claw bodies a0 form multiple claw teeth from the inner wall of the clamping end, and the guide groove a00 vertically penetrates the corresponding multiple claw teeth.

[0061] In this example, the first power component 211 includes a flipping power component b0 that drives the base 200 and causes the gripper 201 and roller 202 to rotate synchronously around a horizontal centerline, and a telescopic power component b1 that is fixed relative to the base 200 and used to drive the roller 202 to move up and down. As the gripper 201 rotates downward and inward, the telescopic power component b1 synchronously drives the roller 202 to move obliquely upward and inward to roll inward while maintaining a constant rolling pressure. That is, the outer end of the self-adhesive section t01 of the roller 202 is rolled inward and adhered based on the combined upward and downward motion. Here, with the synchronous flipping motion of the gripper and roller, not only is it achieved that the two do not interfere with each other, increasing reliability; at the same time, based on the height compensation formed by the telescopic power component, the roller is offset inward while maintaining a constant rolling pressure.

[0062] In some specific embodiments, in the orthographic projection along the horizontal centerline of the flipping motion, the angle between the line connecting the center of roller 202 and the horizontal centerline and the direction of roller 202's extension / retraction is acute. This ensures that the roller is rolled inwards against the adhesive to avoid interference with the flipping path of the gripper.

[0063] When the moving mechanism 11 drives the display glass to move linearly along its long side, the second power component 212 includes a lateral moving force component c0 that drives the film-peeling mechanism 20 to move laterally along the short and / or long side of the display glass, a lifting power component c1 that drives the film-peeling mechanism 20 to move up and down, and a rotational power component c2 that drives the film-peeling mechanism 20 to rotate around the vertical center line to adjust the adhesive bonding direction. In this embodiment, the lateral moving force component c0 includes a first power track c01 and a second power track c02 extending along the short and long side of the display glass, respectively, to drive the film-peeling mechanism 20 to simultaneously move along the long and short side of the display glass during the film-peeling process, so as to combine with the movement direction of the display glass to form the film-peeling direction. That is, when peeling off, in the orthographic projection on the horizontal plane, based on the relative movement between the film-peeling mechanism 20 and the display glass B, the film to be peeled off is gradually peeled off along the diagonal direction of the display glass. This is more conducive to the protective film detaching from the display glass.

[0064] To further facilitate implementation, when the peeling angle is formed, the roller 202 resets to disengage from the adhesive section t01. As the film to be peeled gradually peels away diagonally from the peeling angle, the grippers move horizontally inward to keep the peeling angle constant; alternatively, the grippers move inward and gradually rotate upward to gradually decrease the peeling angle. This ensures stable tearing force by keeping the peeling angle constant, or by gradually decreasing the peeling angle to gradually increase the horizontal component of the force, thereby gradually improving the peeling ability of the protective film.

[0065] In this example, the film removal clamp 22 is positioned on the diagonal side of the corner where the film to be removed is to be placed, and as the gripper 201 moves, the removed film passes through the clamping area formed by the film removal clamp 22. Here, the movement of the gripper allows the removed film to pass through the clamping area formed by the film removal clamp, so that the film can be promptly gripped by the film removal clamp when it is completely removed from the display glass, thereby increasing the probability of film removal.

[0066] In some specific embodiments, the film removal clamp 22 includes two clamping bodies 220 that form a clamping area, a first driving component 221 that drives the two clamping bodies 220 to clamp or open relative to each other, and a second driving component 222 that drives the two clamping bodies 220 to move in the opposite direction to the display glass. When the film is peeled off to the diagonal of the peeling angle, the two clamping bodies 220 simultaneously clamp the corresponding position on the peeled film. When the peeled film is completely peeled off the surface of the display glass, the clamping bodies 220 keep clamping the peeled film. After the film is peeled off, the jaws 201 release the peeled film and reset, and the clamping bodies 220 drop the peeled film into the collection box below. In other words, when the screen glass is completely peeled off, the film is clamped in advance by two clamping bodies so that the diagonal corner of the film to be peeled off is still under the attachment constraint of the screen glass and can be accurately clamped, so as to prevent the peeled film from leaving the clamping area between the two clamping bodies when it is completely peeled off; the two clamping bodies move in the opposite direction to the screen glass to match the needs of peeling off the film of different specifications of screen glass.

[0067] Meanwhile, the two clamping bodies 220 can rotate up and down and clamp or open relative to each other from the lower end. Here, clamping or opening from the lower end facilitates the dropping and collection of the torn film from the film removal clamp.

[0068] Therefore, the implementation process of this embodiment is as follows:

[0069] After adopting this double-sided film-removing device for display glass, the film to be removed is first peeled off with the display glass facing downwards. The display glass is positioned on the platform of the lower film-removing system with the film to be removed facing downwards. The grippers pick up the adhesive and make the adhesive part protrude with the adhesive surface facing upwards. Based on the movement of the grippers, the adhesive part adheres to the film to be removed, forming an adhesive section and an extension section. Based on the coordinated movement of the first and second power components, the grippers flip down and move inwards, the extension section rotates accordingly, and the roller moves inwards to roll the adhesive section. Under the airflow blown between the film to be removed and the display glass, the rolling position on the adhesive section is kept aligned with the peeling position of the film to be removed. When it is peeled off to near the inner end of the adhesive section, the clamping position of the adhesive is located inside the peeling position of the film to be removed. The film to be removed forms a peeling angle that curls inwards and downwards from the corner. The second power component and the moving mechanism cooperate to drive the film to be removed to gradually peel off the display glass diagonally below the peeling angle, and the film-removing chuck holds the already peeled film. The adhesive is detached from the grippers by a collaborative blowing assembly. Then, the upper and lower film-peeling systems are docked to switch the surface of the film to be peeled off the display glass. Next, the film to be peeled off with the display glass facing up is peeled off. The grippers pick up the adhesive and make the adhesive part protrude with the adhesive side facing down. Based on the first and second power components, the grippers flip up and move inward, the outer extension section follows up and flips, and the roller moves inward to roll the adhesive section. Under the airflow blown between the film to be peeled off and the display glass, the rolling position on the adhesive section and the peeling position of the film to be peeled off are kept aligned. When peeled off to near the inner end of the adhesive section, the clamping position of the adhesive is located inside the peeling position of the film to be peeled off. The film to be peeled off forms a peeling angle that curves inward and upward from the corner. The second power component and the moving mechanism work together to drive the film to be peeled off the display glass gradually diagonally above the peeling angle. The film-peeling chuck holds the peeled film and the adhesive is detached from the grippers by a collaborative blowing assembly.

[0070] Therefore, compared with the prior art, this invention, on the one hand, is based on the multi-motion cooperation of the grippers and rollers, maintaining the alignment of the rolling and peeling positions under airflow to gradually peel away the corner of the film to be peeled, greatly reducing the probability of adhesive detaching from the film or causing tearing at the corner, effectively improving the success rate of forming the peeling corner; at the same time, based on the relative movement between the display glass and the grippers to form diagonal film peeling, it not only reduces the risk of protective film tearing or falling off, but also makes film peeling more labor-saving and efficient; on the other hand, based on the film peeling chuck holding the peeled film and cooperating with airflow to detach the adhesive from the grippers to improve the film peeling success rate, and combined with the reverse layout of the upper and lower film peeling system self-loading stage docking to achieve flip-free switching of the film peeling direction, it not only significantly reduces the risk of glass contamination or collision and improves product yield, but also ensures the stable and continuous implementation of double-sided film peeling of multiple pieces of glass, greatly improving the film peeling efficiency. Efficiency; Thirdly, ensuring stable force on the adhesive bonding area and preventing the adhesive from detaching from the grippers due to changes in roller pressure; simultaneously forming an inward rolling adhesion to ensure a firm bond between the adhesive area and the film to be peeled off; Fourthly, with the synchronous rotation of the grippers and rollers, not only do they not interfere with each other, increasing reliability; at the same time, based on the height compensation formed by the telescopic power component, the rollers can shift inward while maintaining constant rolling pressure; Fifthly, based on the movement of the grippers, the peeled film passes through the clamping area formed by the film removal chuck, so that the film can be promptly gripped by the film removal chuck when it is completely peeled off the display glass, improving the film removal probability; Sixthly, based on the clamping or opening of the lower end, the peeled film can be dropped and collected from the film removal chuck; at the same time, based on the two clamping bodies moving in the opposite direction to the display glass, it can match the needs of peeling film from different specifications of display glass.

[0071] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A double-sided film-peeling device for display glass, comprising a lower film-peeling system for the film to be peeled facing downwards and an upper film-peeling system for the film to be peeled facing upwards, characterized in that, The upper and lower film-peeling systems have identical structures but are arranged in opposite directions. The lower film-peeling system includes a loading unit and a film-peeling unit. The loading unit includes a platform that positions the display glass with the film to be peeled facing downwards and a moving mechanism. The film-peeling unit is located below the platform and includes a film-peeling mechanism, a power unit, and a film-removing chuck. The film-peeling mechanism includes a base, grippers, rollers, and a blowing assembly. The grippers pick up the adhesive piece one by one, and the adhesive has an adhesive portion protruding from the grippers with the adhesive surface facing upwards. Based on the movement of the grippers, the adhesive portion adheres to the film to be peeled, forming an adhesive segment and an extended segment. The power unit includes a first power component and a second power component. The first power component includes a flipping power component that drives the base and drives the grippers and rollers to rotate synchronously around a horizontal centerline, and a telescopic power component that is fixed relative to the base and used to drive the rollers to move up and down. As the grippers rotate, the telescopic power component synchronously drives the rollers diagonally upwards. The adhesive section is rolled inward to maintain constant rolling pressure. The second power component includes a lateral movement component that drives the film-tearing mechanism to move laterally along the short and / or long sides of the display glass, and a lifting power component that drives the film-tearing mechanism to move up and down. Based on the first and second power components, the gripper flips down and moves inward, the outer extension section flips as it moves, and the roller moves inward to roll the adhesive section. Under the airflow generated by the blowing assembly and blown between the film to be peeled and the display glass, the rolling position on the adhesive section and the peeling position of the film to be peeled are kept aligned. When peeled to near the inner end of the adhesive section, the clamping position of the adhesive is located inside the peeling position of the film to be peeled. The film to be peeled forms a peeling angle that curls inward from the corner and downward. The second power component and the moving mechanism cooperate to drive the film to be peeled gradually away from the display glass diagonally below the peeling angle. The film-removing chuck clamps the peeled film to cooperate with the blowing assembly to remove the adhesive from the gripper. The upper and lower film-peeling systems dock to switch the film to be peeled off the display glass. The upper film-peeling system, based on the upward and inward movement of the grippers, the follow-up rotation of the outer extension section, the inward movement of the rollers to roll the bonding section, and the airflow blown between the film to be peeled off and the display glass, makes the film to be peeled off form a peeling angle that curves inward and upward from the corner. The second power unit and the moving mechanism work together to drive the film to be peeled off the display glass gradually diagonally above the peeling angle, and the film-removing chuck holds the peeled film to cooperate with the blowing component to remove the adhesive from the grippers.

2. The double-sided film peeling device for display glass according to claim 1, characterized in that, The film removal clamp is positioned on the opposite side of the angle from which the film to be removed is to pass through the clamping area formed by the film removal clamp based on the movement of the grippers.

3. The double-sided film peeling device for display glass according to claim 2, characterized in that, The film removal clamp includes two clamping bodies that form the clamping area at intervals, and a first driving component that drives the two clamping bodies to clamp or open relative to each other. When the film is peeled off to the opposite corner of the peeling angle, the two clamping bodies simultaneously clamp onto the corresponding position on the peeled film.

4. The double-sided film peeling device for display glass according to claim 3, characterized in that, The two clamping bodies can rotate up and down and clamp or open relative to each other from the lower end; and / or, the demolding chuck further includes a second driving component that drives the two clamping bodies to move in the opposite direction to the display glass.

5. The double-sided film peeling device for display glass according to claim 1, characterized in that, The gripper has an installation space and a plurality of guide grooves connected to the installation space are formed at the gripping end. The airflow nozzle of the blowing component is set in the installation space. When the film is peeled off, the airflow blown out by the nozzle is blown between the film to be peeled and the display glass through the plurality of guide grooves.

6. The double-sided film peeling device for display glass according to claim 5, characterized in that, The gripper includes two gripper bodies spaced apart vertically to form an installation space, wherein the inner wall of the gripper body opposite the adhesive surface is recessed inward to form the guide groove.

7. The double-sided film peeling device for display glass according to claim 1, characterized in that, The roller forms a self-adhesive segment by rolling and bonding the outer end inward based on the combined upward and downward motion, and when the peeling angle is formed, the roller resets to detach from the adhesive segment.

8. The double-sided film-removing device for display glass according to claim 1 or 7, characterized in that, As the film to be peeled gradually peels away diagonally from the peeling angle, the grippers move horizontally inward to keep the peeling angle constant, or the grippers move inward and gradually flip upward to make the peeling angle gradually smaller.

9. The double-sided film peeling device for display glass according to claim 1, characterized in that, In the orthographic projection along the extension direction of the horizontal centerline, the angle between the line connecting the center of the roller and the horizontal centerline and the direction of the roller's extension and retraction is an acute angle; and / or, the rolling area formed by the roller covers the width of the adhesive section.

10. The double-sided film peeling device for display glass according to claim 1, characterized in that, The moving mechanism drives the display glass to move linearly along the long or short side.

11. The double-sided film peeling device for display glass according to claim 1, characterized in that, During peeling, in the orthographic projection on the horizontal plane, based on the relative movement between the film-peeling mechanism and the display glass, the film to be peeled off is gradually peeled off along the diagonal direction of the display glass; and / or, the second power component also includes a rotational power component that drives the film-peeling mechanism to rotate around the vertical center line to adjust the adhesive bonding direction.

12. The double-sided film-removing device for display glass according to claim 1, characterized in that, During bonding, the adhesive surface of the bonding section intersects with the two sides corresponding to the corner of the film to be peeled.

13. The double-sided film-removing device for display glass according to claim 12, characterized in that, In the orthographic projection on the horizontal plane, the center line of the adhesive segment coincides with the diagonal of the film to be peeled off.

14. The double-sided film-removing device for display glass according to claim 1, characterized in that, The moving mechanism of the lower peeling film system includes a first moving track extending horizontally along the long side of the display glass and a second moving track movably connected to the first moving track and extending vertically. The platform of the lower peeling film system is movably connected to the second moving track. Based on the dynamic cooperation of the first and second moving tracks, the display glass can move horizontally along its own long side and vertically up and down. The moving mechanism of the upper peeling film system includes a third moving track disposed below the first moving track and aligned from one end. The platform of the upper peeling film system is movably connected to the third moving track. When switching the display glass to be peeled, the platforms of the upper and lower peeling film systems are aligned vertically, and the platform of the lower peeling film system moves downward to transfer the display glass onto the platform of the upper peeling film system.

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