LCD (Liquid Crystal Display) screen film tearing device and film tearing method

Abstract

The LCD screen film tearing device comprises a support, a machining platform is fixed to the upper portion of the support, a concave table is formed in the center of the machining platform, a mechanical arm is fixed to the machining platform, the mechanical arm comprises a mechanical arm output end, and a vacuum suction cup is fixed to the mechanical arm output end. Clamping assemblies are connected to the two sides of the machining platform in a sliding mode, and a film tearing assembly is fixed to the machining platform; the film tearing assembly comprises a roller, the roller comprises a roller shaft and a roller body, the roller body is fixedly connected with the roller shaft, a mounting groove is formed in the roller body, a heating rod is fixed in the mounting groove, a plurality of suction cups are fixed on the outer diameter of the roller body, and the suction cups are communicated with the mounting groove; a plurality of third air pipes are fixed to the outer diameter of the roller shaft, one end of each third air pipe is communicated with the roller shaft, and the other end of each third air pipe is communicated with the mounting groove; by means of the device, accurate tearing of the LCD screen protection film is achieved, and meanwhile the integrity and cleanliness of the surface of an LCD screen are guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of automated production, and in particular relates to an LCD screen film tearing device and a film tearing method. Background Art

[0002] Film removal is a crucial step in the production and processing of LCD screens. After the LCD screen is produced, its surface is usually covered with a protective film to prevent scratches or contamination during transportation and storage. However, before subsequent processing or use, this protective film needs to be removed accurately and without damage.

[0003] Traditional LCD screen film removal methods mostly rely on manual operation, which is not only inefficient, but also prone to scratches or damage to the LCD screen surface due to improper operation. In addition, as the size of LCD screens continues to increase and the structure becomes increasingly complex, the difficulty and cost of manual film removal are also increasing.

[0004] In order to solve these problems, some automated LCD screen film removal equipment has appeared on the market. However, these equipment still have some shortcomings in terms of film removal effect and stability. For example, some equipment cannot ensure the integrity of the LCD screen surface during the film removal process, and it is easy to leave scratches or glue residue; other equipment is difficult to be widely used due to its complex structure and cumbersome operation.

[0005] Therefore, it is particularly important to develop an efficient, stable, and easy-to-operate LCD screen film tearing device. This device needs to be able to accurately control the film tearing process to ensure that the LCD screen surface is not damaged, and also needs to have a high degree of automation to improve production efficiency and reduce labor costs.

[0006] In order to solve the above problems, a novel LCD screen film tearing device is proposed, which realizes the accurate tearing of the LCD screen protective film and ensures the integrity and cleanliness of the LCD screen surface. Summary of the invention

[0007] The purpose of the present invention is to provide an LCD screen film tearing device and a film tearing method to solve the problems raised in the above background technology.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: an LCD screen film tearing device and a film tearing method, comprising a bracket, a processing platform is fixed on the bracket, a concave platform is opened in the center of the processing platform, a mechanical arm is fixed on the processing platform, the mechanical arm includes a mechanical arm output end, a vacuum suction cup is fixed on the mechanical arm output end, clamping components are slidably connected on both sides of the processing platform, and a film tearing component is fixed on the processing platform;

[0009] The film tearing assembly comprises a roller, and the roller comprises a roller shaft and a cylinder body.

[0010] The cylinder is fixedly connected to the roller shaft, a mounting groove is provided in the cylinder, a heating rod is fixed in the mounting groove, and a plurality of suction cups are fixed on the outer diameter of the cylinder, and the suction cups are in communication with the mounting groove;

[0011] A plurality of air pipes are fixed on the outer diameter of the roller shaft, one end of the air pipe is connected to the roller shaft, and the other end is connected to the mounting groove;

[0012] A push rod groove is also provided in the other end of the roller shaft, a push rod 2 is fixed in the push rod groove, the push rod 2 includes a push rod output end, a sliding plug is fixedly connected to the push rod output end, and the roller shaft at the front end of the push rod output end is communicated with the mounting groove; a vent hole 2 is provided on the sliding plug, and the vent hole 2 is communicated with the mounting groove;

[0013] A mounting block is fixed on the two sliding blocks, an air blocking piece is fixed between the mounting blocks, the air blocking piece penetrates the cylinder body and fits with the cylinder body gap, and the air blocking piece is in three-phase communication with the air pipe.

[0014] The present invention further illustrates that the film tearing assembly further includes an electric guide rail 1, a sliding block and an air pump, wherein:

[0015] The electric guide rail 1 is fixed on the processing platform and is located on both sides of the concave platform. The sliding block is slidably connected to the electric guide rail 1. The roller is installed between the sliding blocks and is located above the concave platform.

[0016] The present invention further illustrates that the roller shaft is centrally shaped and has air hole two at one end, one of the sliding blocks has air hole one, the vacuum pump is fixed on the side of the processing platform, the vacuum pump penetrates air hole one through air pipe two and is communicated with the two ends of the air hole opened on the roller, and the air pipe two is fixed on one of the sliding blocks, and a motor groove is opened in the other sliding block, a motor one is fixed in the motor groove, the motor one includes a motor one output end, and the motor one output end is fixedly connected to the other end of the roller shaft.

[0017] The present invention further illustrates that the film tearing assembly further includes a second connecting rod, a second motor and a scraper, wherein:

[0018] The two connecting rods are rotatably connected to the two sides of the roller shaft respectively. A motor is fixed on one side of the connecting rod. The motor includes a motor output shaft. The scraper is fixed on the motor output shaft. One end of the scraper is sharp and the other end is blunt.

[0019] The present invention further illustrates that the vacuum suction cup comprises a vacuum pump base, a connecting rod, a fixing frame, a vacuum pump, a transport suction cup and an air pipe, wherein:

[0020] One end of the vacuum pump is fixedly connected to the output end of the robotic arm, the other end of the vacuum pump is fixed to the vacuum pump base, the vacuum pump base is hinged to one end of the connecting rod, one end of the connecting rod is hinged to the fixed frame, the transport suction cup is fixed under the fixed frame, the air pipe one is connected between the vacuum pump and the transport suction cup, one end of the air pipe one is tightly connected to the output port of the vacuum pump, and the other end is connected to the suction port inside the transport suction cup.

[0021] The present invention further illustrates that the vacuum suction cup comprises a vacuum pump base, a connecting rod, a fixing frame, a vacuum pump, a transport suction cup and an air pipe, wherein:

[0022] One end of the vacuum pump is fixedly connected to the output end of the robotic arm, the other end of the vacuum pump is fixed to the vacuum pump base, the vacuum pump base is hinged to one end of the connecting rod, one end of the connecting rod is hinged to the fixed frame, the transport suction cup is fixed under the fixed frame, the air pipe one is connected between the vacuum pump and the transport suction cup, one end of the air pipe one is tightly connected to the output port of the vacuum pump, and the other end is connected to the suction port inside the transport suction cup.

[0023] The present invention further illustrates that a sliding groove is provided at the bottom of the vacuum pump base, a push rod 1 is fixed to the bottom of the vacuum pump base, the push rod 1 includes a push rod 1 output end, a slider is fixed on the push rod 1 output end, and the slider slides in the sliding groove; a connecting rod 1 is hinged at one end of the slider away from the push rod 1, a rotating block is fixed at one end of the connecting rod 1 away from the slider, connecting shafts are rotatably connected on both sides of the rotating block, connecting rod 2 and connecting rod 3 are rotatably connected on the connecting shaft, connecting rod 2 is fixed to the bottom of the fixed frame, and connecting rod 3 is fixed to the bottom of the vacuum pump base.

[0024] The present invention further describes that the clamping assembly includes an electric guide rail 2, a cylinder and a clamping claw.

[0025] The electric guide rails 2 are fixedly connected to the two sides of the processing platform, each of the electric guide rails 2 is slidably connected with a cylinder fixing seat, the cylinder fixing seat is fixedly connected with a cylinder, and the piston end of the cylinder is connected to the clamping claw.

[0026] The present invention further describes that the clamping assembly includes an electric guide rail 2, a cylinder and a clamping claw.

[0027] The electric guide rails 2 are fixedly connected to the two sides of the processing platform, each of the electric guide rails 2 is slidably connected with a cylinder fixing seat, the cylinder fixing seat is fixedly connected with a cylinder, and the piston end of the cylinder is connected to the clamping claw.

[0028] The present invention further describes a film peeling method of an LCD screen film peeling device: a mechanical arm drives a vacuum suction cup to fit the surface of the LCD screen without a protective film; a vacuum pump is started to extract air inside the transport suction cup through an air pipe to form a negative pressure, so that the LCD screen is firmly adsorbed on the transport suction cup;

[0029] According to the size of the LCD screen, the angles of the vacuum pump base and the transport suction cup are adjusted through the linkage of the push rod 1, the slider, the connecting rod 1, the rotating block, the connecting shaft, the connecting rod 2 and the connecting rod 3;

[0030] During transportation, the fixed frame and the transport suction cup are kept level through the slide bar 1, guide block and slide bar 2 to ensure smooth transportation;

[0031] The robot arm brings the LCD screen between the two clamps and stops moving; the cylinder starts, driving the clamps to move toward each other, clamping and fixing the LCD screen;

[0032] At this time, the side of the LCD screen with the protective film contacts the surface of the film tearing assembly; push rod 2 is started to make vent hole 2 communicate with vent hole 1, thus connecting the air path; the heating rod is controlled to heat, and the vacuum pump blows air, and the gas enters the inside of the roller through vent hole 2 on the roller shaft, and forms hot air after being heated by the heating rod; the hot air is blown out from the roller through the suction cup, and evenly heats the protective film of the LCD screen and the glue on the surface, so that they are softened and easier to fall off; motor 1 drives the roller to rotate, and electric guide rail 1 drives the sliding block and the roller to move, ensuring that the hot air evenly acts on the protective film and glue of the LCD screen;

[0033] When the roller moves to the initial position, stop heating and vacuuming; start push rod 2 to restore the sliding plug to its original position and cut off the air path; restart the vacuum pump to form negative pressure in the roller shaft; since the inside of the roller shaft is connected to the suction cup through air hole 3, and the uppermost suction cup is in contact with the LCD screen protective film, the protective film is smoothly sucked away due to the negative pressure under the action of the vacuum pump; start electric guide rail 1 and motor 1 to keep the roller rotating, and at the same time the sliding block moves smoothly along the electric guide rail 1, driving the LCD screen protective film to gradually complete the peeling process; during the peeling process, the scraper follows closely to clean the glue remaining on the surface of the LCD screen to ensure the cleanliness of the LCD screen surface.

[0034] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention, through the film peeling assembly adopting a roller design, combined with a heating rod and an air pump, can soften the protective film while realizing accurate film peeling through negative pressure adsorption, thereby avoiding scratches or glue residue on the surface of the LCD screen, and the rotation of the roller and the translational movement of the electric guide rail are combined to ensure the uniformity and integrity of the peeling of the protective film;

[0035] The vacuum suction cup on the robotic arm is designed with an adjustable angle, which can automatically adjust the adsorption position according to LCD screens of different sizes, improving the versatility and flexibility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0037] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0038] Figure 2 is a schematic diagram of the structure of a vacuum suction cup according to an embodiment of the present invention;

[0039] Figure 3 Embodiment of the present invention Figure 2 A schematic diagram of the enlarged structure of region A;

[0040] Figure 4 is a schematic diagram of the structure of a vacuum suction cup according to an embodiment of the present invention;

[0041] Figure 5 The embodiment of the present invention Figure 4 Schematic diagram of the enlarged structure of region B;

[0042] Figure 6 is an overall cross-sectional view of a film tearing assembly according to an embodiment of the present invention;

[0043] Figure 7 is a schematic diagram of the internal structure of a drum according to an embodiment of the present invention;

[0044] Figure 8 Embodiment of the present invention Figure 7 Schematic diagram of the enlarged structure of the C region;

[0045] Fig. 9 Embodiment of the present invention Figure 1 Schematic diagram of the enlarged structure of the D region;

[0046] In the figure: 1, bracket; 2, processing platform; 3, mechanical arm; 4, vacuum suction cup; 401, vacuum pump base; 402, connecting rod 1; 403, fixed frame; 404, vacuum pump; 405, transport suction cup; 406, air pipe 1; 407, fixed block 1; 408, sliding rod 1; 409, fixed block 2; 410, sliding rod 2; 411, guide block; 412, push rod 1; 413, slider; 414, sliding groove; 415, connecting rod 1; 416, rotating block; 417, connecting shaft; 418, connecting rod 2; 419, connecting rod 3;

[0047] 5. Clamping assembly;

[0048] 6. Film tearing assembly; 601. Electric guide rail 1; 602. Roller; 603. Sliding block; 604. Vacuum pump; 605. Air pipe 2; 606. Motor 1; 607. Roller; 608. Cylinder; 609. Mounting slot; 610. Heating rod; 611. Suction cup; 612. Air pipe 3; 613. Push rod slot; 614. Push rod 2; 615. Sliding plug; 616. Vent 1; 617. Vent 2; 618. Air blocking sheet; 619. Vent 3; 620. Connecting rod 2; 621. Motor 2; 622. Scraper; 623. Mounting block. DETAILED DESCRIPTION

[0049] The following is a further non-limiting detailed description of the technical solution of the present invention in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] See also Figure 1-9 An embodiment of the present invention provides a technical solution: an LCD screen film tearing device, comprising a bracket 1.

[0051] like Figure 1 As shown, in some embodiments, a processing platform 2 is fixed above the bracket 1, and a recessed platform 7 is opened in the center of the processing platform 2, and the recessed platform 7 is used to place the LCD screen and store the film of the LCD screen after tearing off. A robot arm 3 is fixed on the processing platform 2, and the robot arm 3 includes a robot arm output end, and a vacuum suction cup 4 is fixed to the robot arm output end. Clamping components 5 are slidably connected on both sides of the processing platform 2, and the clamping components 5 are used to clamp the LCD screen. A film tearing component 6 is fixed on the processing platform 2, and the film tearing component 6 is used to tear off the film of the LCD screen.

[0052] like Figure 2 As shown, in some embodiments, the vacuum suction cup 4 includes a vacuum pump base 401, a connecting rod 402, a fixing frame 403, a vacuum pump 404, a transport suction cup 405 and an air pipe 406, wherein:

[0053] One end of the vacuum pump 404 is fixedly connected to the output end of the robot arm, and the other end of the vacuum pump 404 is fixed to the vacuum pump base 401. The vacuum pump base 401 is used to support the vacuum pump 404. The vacuum pump base 401 is hinged to one end of the connecting rod 1 402. One end of the connecting rod 1 402 is hinged to the fixed frame 403. The fixed frame 403 is used to support the transport suction cup 405. The transport suction cup 405 is fixed below the fixed frame 403. The air pipe 1 406 is connected between the vacuum pump 404 and the transport suction cup 405. One end of the air pipe 1 406 is tightly connected to the output port of the vacuum pump 404, and the other end is connected to the suction port inside the transport suction cup 405.

[0054] When the vacuum pump 404 is started, it draws air from the inside of the transport suction cup 405 through the air pipe 406 , thereby forming a negative pressure between the transport suction cup 405 and the object, so that the object is firmly adsorbed on the transport suction cup 405 .

[0055] like Figure 3 As shown, in some embodiments, a second fixing block 409 is fixed on the outer side of the fixing frame 403, a second sliding bar 410 is fixed on the second fixing block 409, a guide block 411 is slidably connected to the second sliding bar 410, a first fixing block 407 is also fixed on the vacuum pump base 401, a first sliding bar 408 is fixed on the first fixing block 407, one end of the first sliding bar 408 is fixed on the first fixing block 407, and the other end extends toward the direction of the second fixing block 409 and is arranged between the second fixing block 409 and the guide block 411.

[0056] like Figure 4 and Figure 5 As shown, in some embodiments, a sliding groove 414 is provided at the bottom of the vacuum pump base 401, a push rod 412 is fixed to the bottom of the vacuum pump base 401, the push rod 412 includes a push rod output end, a slider 413 is fixed on the push rod output end, and the slider 413 slides in the sliding groove 414; a connecting rod 415 is hinged at one end of the slider 413 away from the push rod 412, a rotating block 416 is fixed at one end of the connecting rod 415 away from the slider 413, connecting shafts 417 are rotatably connected on both sides of the rotating block 416, connecting shafts 417 are rotatably connected to connecting rods 2 418 and connecting rods 3 419, the connecting rods 2 418 are fixed to the bottom of the fixed frame 403, and the connecting rods 3 419 are fixed to the bottom of the vacuum pump base 401.

[0057] When the LCD screen is small and only one or two of the transport suction cups 405 are needed, the push rod 1 412 is started, and the output end of the push rod 1 412 pushes the slider 413 to slide in the direction of the push rod 1 412, and the slider 413 drives the connecting rod 1 415 to rotate, and the connecting rod 1 415 drives the rotating block 416 to move in the direction of the slider 413, so that the connecting shaft 417 moves accordingly, and the movement of the connecting shaft 417 causes the connecting rod 2 418 and the connecting rod 3 419 to rotate accordingly, so that the connecting rod 1 402 and the vacuum pump base 401 move relative to each other, and the angle formed by the connecting rod 1 402 and the vacuum pump base 401 is adjusted, thereby driving the fixing frame 403 and the transport suction cup 405 to move downward, and the downward moving transport suction cup 405 adsorbs the LCD screen.

[0058] During the movement of the transport suction cup 405, the fixed frame 403 drives the fixed block 2 409 to approach the vacuum pump base 401, and at the same time, the guide block 411 on the slide bar 2 410 slides along the slide bar 1 408, and the slide bar 1 408 ensures that the guide block 411 always remains in a horizontal state. The guide block 411 slides upward relative to the slide bar 2 410 while approaching the vacuum pump base 401, ensuring that the fixed frame 403 and the transport suction cup 405 are always horizontal, ensuring stability during transportation.

[0059] like Figure 1 As shown, in some embodiments, the clamping assembly 5 includes an electric guide rail 501, a cylinder 502 and a clamping claw 503.

[0060] The electric guide rail 2 501 is fixedly connected to both sides of the processing platform 2, and each of the electric guide rails 2 501 is slidably connected to a cylinder fixing seat, and a cylinder 502 is fixedly connected to the cylinder fixing seat. The piston end of the cylinder 502 is connected to the clamp 503, and the fingertip of the clamp 503 is provided with soft material to protect the surface of the LCD screen from scratches.

[0061] When the robotic arm 3 drives the LCE screen to between the two clamps 503, the robotic arm 3 stops moving. At this time, the cylinder 502 starts, driving each clamp 503 to move toward the other clamp 503, clamping and fixing the LCD screen. At this time, the flexible material fits tightly against the surface of the LCD screen, and the side with the protective film contacts the surface of the film tearing assembly 6.

[0062] like Figure 1 , Figure 6 and Figure 7 As shown, in some embodiments, the film tearing assembly 6 includes an electric guide rail 601, a roller 602, a sliding block 603 and an air pump 604, wherein:

[0063] The electric guide rail 1 601 is fixed on the processing platform 2 and is located on both sides of the concave platform 7. The sliding block 603 is slidably connected to the electric guide rail 1 601. The roller 602 is installed between the sliding blocks 603 and is located above the concave platform 7.

[0064] The roller 602 includes a roller shaft 607 and a cylinder 608, the roller shaft 607 is centrally shaped and has a second air hole at one end, the sliding block 603 has a first air hole, the vacuum pump 604 is fixed to the side of the processing platform 2, the vacuum pump 604 passes through the second air pipe 605 and is connected to the two ends of the air hole on the roller 602, and the second air pipe 605 is fixed on the sliding block 603, the other sliding block 603 has a first motor slot, the first motor slot has a motor 606 fixed therein, the motor 606 includes a first motor output end, and the first motor output end is fixedly connected to the other end of the roller shaft 607;

[0065] like Figure 7 As shown, in some embodiments, the cylinder 608 is fixedly connected to the roller 607, a mounting groove 609 is provided in the cylinder 608, a heating rod 610 is fixed in the mounting groove 609, and the heating rod 610 is used to heat the air; a plurality of suction cups 611 are fixed on the outer diameter of the cylinder 608, and the suction cup 611 includes a suction cup input end, and the suction cup input end is communicated with the mounting groove 609;

[0066] A plurality of air pipes 612 are fixed on the outer diameter of the roller shaft 607, one end of the air pipe 612 is connected to the roller shaft 607, and the other end is connected to the mounting groove 609;

[0067] like Figure 8 As shown, in some embodiments, a push rod groove 613 is further provided in the other end of the roller shaft 607, a push rod 2 614 is fixed in the push rod groove 613, the push rod 2 614 includes a push rod output end, the push rod output end faces the hollow end of the roller shaft 607, a sliding plug 615 is fixedly connected to the push rod output end, and the roller shaft 607 at the front end of the push rod output end is further provided with an air vent 1 616, both ends of the air vent 1 616 are communicated with the mounting groove 609; the sliding plug 615 is provided with an air vent 2 617, and the air vent 2 617 is adapted to the air vent 1 616.

[0068] like Figure 7 and Figure 8As shown, in some embodiments, a mounting block 623 is fixed on the two sliding blocks 603, an air blocking piece 618 is fixed between the mounting blocks 623, the air blocking piece 618 passes through the cylinder 608 and has a gap with the cylinder 608, an air hole three 619 is opened directly above the air blocking piece 618, and the air hole three 619 is communicated with the air pipe three 612.

[0069] When the LCD screen is fixed by the clamping assembly 5, the push rod 2 614 is started, and the push rod 2 614 drives the sliding plug 615 to move. When the vent hole 2 617 is connected to the vent hole 1 616, the push rod 2 614 stops, and the air path is connected.

[0070] The heating rod 610 is controlled to heat, and the vacuum pump 604 blows air. The gas enters the interior of the drum 602 through the air hole 2 on the roller shaft 607, and is heated by the heating rod 610 to form hot air, which is blown out of the drum 602 through the suction cup 611. The motor 606 is started, and the motor 606 drives the drum 602 to rotate. The electric guide rail 601 is started, and the electric guide rail 601 drives the sliding block 603 and the drum 602 to move, so that the protective film of the LCD screen and the glue on the surface are evenly heated and softened in the hot air, making it easier to fall off.

[0071] When the roller 602 moves on the electric guide rail 1 601 and returns to the initial position, the vacuum pump 604 stops working, and the heating rod 610 gradually lowers the temperature until the heating stops completely. By starting the push rod 2 614, the sliding plug 615 returns to its original position and cuts off the air path. Restart the vacuum pump 604, and the vacuum pump 604 draws air to form a negative pressure in the roller 607. The inside of the roller 607 is connected to the suction cup 611 through the air hole 3 619. Due to the action of the air blocking sheet 618, the inside of the roller 607 is always connected to the suction cup 611 at the top. Since the suction cup 611 at the top is in contact with the LCD screen protective film, the protective film is smoothly sucked away due to the negative pressure under the action of the vacuum pump 604.

[0072] The electric guide rail 601 and the motor 606 are started to make the roller 602 continue to rotate, and at the same time, the sliding block 603 moves smoothly along the electric guide rail 601, driving the LCD screen protective film to gradually complete the peeling process.

[0073] like Fig. 9 As shown, in some embodiments, the film tearing assembly 6 further includes a second connecting rod 620, a second motor 621 and a scraper 622, wherein:

[0074] The two connecting rods 620 are rotatably connected to the two sides of the roller shaft 607 respectively. A motor 621 is fixed on one side of the connecting rod 620. The motor 621 includes a motor output shaft. The scraper 622 is fixed on the motor output shaft. One end of the scraper 622 is sharp and the other end is blunt. The sharp end of the scraper 622 is used to scrape off the residual glue on the LCD screen protective film and is located between the two connecting rods 620. When working, a wire is fixed above the scraper 622 and grounded to eliminate the static electricity generated by the LCD screen during the film stripping process, ensuring that the LCD screen will not be damaged during operation.

[0075] When the film tearing assembly 6 softens the LCD screen protective film, the motor 2 621 is started to turn the blunt end of the scraper 622 toward the roller 602 to prevent the scraper 622 from affecting the heating process. When the film tearing assembly 6 peels off the LCD screen protective film, the motor 2 621 is started to turn the sharp end of the scraper 622 toward the roller 602.

[0076] Working principle:

[0077] When it is necessary to tear the film on the LCD screen, the robotic arm 3 drives the vacuum suction cup 4 to adhere to the surface of the LCD screen without the protective film. When the vacuum pump 404 is started, it will extract the air inside the transport suction cup 405 through the air pipe 406, thereby forming a negative pressure between the transport suction cup 405 and the object, so that the object is firmly adsorbed on the transport suction cup 405.

[0078] When the LCD screen is small and only one or two of the transport suction cups 405 are needed, the push rod 1 412 is started, and the output end of the push rod 1 412 pushes the slider 413 to slide in the direction of the push rod 1 412, and the slider 413 drives the connecting rod 1 415 to rotate, and the connecting rod 1 415 drives the rotating block 416 to move in the direction of the slider 413, so that the connecting shaft 417 moves accordingly, and the movement of the connecting shaft 417 causes the connecting rod 2 418 and the connecting rod 3 419 to rotate accordingly, so that the connecting rod 1 402 and the vacuum pump base 401 move relative to each other, and the angle formed by the connecting rod 1 402 and the vacuum pump base 401 is adjusted, thereby driving the fixing frame 403 and the transport suction cup 405 to move downward, and the downward moving transport suction cup 405 adsorbs the LCD screen.

[0079] During the movement of the transport suction cup 405, the fixed frame 403 drives the fixed block 2 409 to approach the vacuum pump base 401, and at the same time, the guide block 411 on the slide bar 2 410 slides along the slide bar 1 408, and the slide bar 1 408 ensures that the guide block 411 always remains in a horizontal state. The guide block 411 slides upward relative to the slide bar 2 410 while approaching the vacuum pump base 401, ensuring that the fixed frame 403 and the transport suction cup 405 are always horizontal, ensuring stability during transportation.

[0080] When the robotic arm 3 drives the LCE screen to between the two clamps 503, the robotic arm 3 stops moving. At this time, the cylinder 502 starts, driving each clamp 503 to move toward the other clamp 503, clamping and fixing the LCD screen. At this time, the flexible material fits tightly against the surface of the LCD screen, and the side with the protective film contacts the surface of the film tearing assembly 6.

[0081] When the LCD screen is fixed by the clamping assembly 5, the push rod 2 614 is started, and the push rod 2 614 drives the sliding plug 615 to move. When the vent hole 2 617 is connected to the vent hole 1 616, the push rod 2 614 stops, and the air path is connected.

[0082] The heating rod 610 is controlled to heat, and the vacuum pump 604 blows air. The gas enters the interior of the drum 602 through the air hole 2 on the roller shaft 607, and is heated by the heating rod 610 to form hot air, which is blown out of the drum 602 through the suction cup 611. The motor 606 is started, and the motor 606 drives the drum 602 to rotate. The electric guide rail 601 is started, and the electric guide rail 601 drives the sliding block 603 and the drum 602 to move, so that the protective film of the LCD screen and the glue on the surface are evenly heated and softened in the hot air, making it easier to fall off.

[0083] When the roller 602 moves on the electric guide rail 1 601 and returns to the initial position, the vacuum pump 604 stops working, and the heating rod 610 gradually lowers the temperature until the heating stops completely. By starting the push rod 2 614, the sliding plug 615 returns to its original position and cuts off the air path. Restart the vacuum pump 604, and the vacuum pump 604 draws air to form a negative pressure in the roller 607. The inside of the roller 607 is connected to the suction cup 611 through the air hole 3 619. Due to the action of the air blocking sheet 618, the inside of the roller 607 is always connected to the suction cup 611 at the top. Since the suction cup 611 at the top is in contact with the LCD screen protective film, the protective film is smoothly sucked away due to the negative pressure under the action of the vacuum pump 604.

[0084] The electric guide rail 601 and the motor 606 are started to make the roller 602 continue to rotate, and the sliding block 603 moves smoothly along the electric guide rail 601, driving the LCD screen protective film to gradually complete the peeling process. During the peeling process, the scraper 622 follows closely to clean the residual glue on the surface of the LCD screen.

[0085] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0086] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An LCD screen film tearing device, comprising a bracket (1), characterized in that: A processing platform (2) is fixed above the support (1), a concave platform (7) is provided at the center of the processing platform (2), a mechanical arm (3) is fixed on the processing platform (2), the mechanical arm (3) comprises a mechanical arm output end, a vacuum suction cup (4) is fixed on the mechanical arm output end, clamping components (5) are slidably connected on both sides of the processing platform (2), and a film tearing component (6) is fixed on the processing platform (2); The film tearing assembly (6) comprises a roller (602), wherein the roller (602) comprises a roller shaft (607) and a cylinder body (608). The cylinder (608) is fixedly connected to the roller (607), a mounting groove (609) is provided in the cylinder (608), a heating rod (610) is fixed in the mounting groove (609), a plurality of suction cups (611) are fixed on the outer diameter of the cylinder (608), and the suction cups (611) are in communication with the mounting groove (609); A plurality of air pipes (612) are fixed on the outer diameter of the roller shaft (607), one end of the air pipes (612) is in communication with the roller shaft (607), and the other end is in communication with the mounting groove (609); A push rod groove (613) is also provided in the other end of the roller shaft (607), a push rod second (614) is fixed in the push rod groove (613), the push rod second (614) comprises a push rod output end, a sliding plug (615) is fixedly connected to the push rod output end, the roller shaft (607) at the front end of the push rod output end is in communication with the mounting groove (609); a vent hole second (617) is provided on the sliding plug (615), the vent hole second (617) is in communication with the mounting groove (609); A mounting block (623) is fixed on the two sliding blocks (603), and an air blocking piece (618) is fixed between the mounting blocks (623). The air blocking piece (618) passes through the cylinder (608) and is fitted with the cylinder (608) in a clearance. The air blocking piece (618) is communicated with the air pipe three (612).

2. The LCD screen film tearing device according to claim 1, characterized in that: The film tearing assembly (6) further comprises an electric guide rail (601), a sliding block (603) and an air pump (604), wherein: The electric guide rail 1 (601) is fixed on the processing platform (2) and is located on both sides of the concave platform (7). The sliding block (603) is slidably connected to the electric guide rail 1 (601). The roller (602) is installed between the sliding blocks (603) and is located above the concave platform (7).

3. The LCD screen film tearing device according to claim 2, characterized in that: The roller shaft (607) is centrally shaped and has two air holes at one end. One of the sliding blocks (603) has one air hole. The vacuum pump (604) is fixed on the side of the processing platform (2). The vacuum pump (604) passes through the air hole one through the air pipe (605) and is connected to the two ends of the air holes opened on the roller (602). The air pipe (605) is fixed on one of the sliding blocks (603). A motor slot is opened in the other sliding block (603). A motor (606) is fixed in the motor slot. The motor (606) includes a motor output end. The motor output end is fixedly connected to the other end of the roller shaft (607).

4. The LCD screen film tearing device according to claim 3, characterized in that: The film tearing assembly (6) further comprises a second connecting rod (620), a second motor (621) and a scraper (622), wherein: The two connecting rods (620) are rotatably connected to the two sides of the roller shaft (607), and a motor (621) is fixed on one side of the connecting rod (620). The motor (621) includes a motor output shaft. The scraper (622) is fixed on the motor output shaft. One end of the scraper (622) is sharp and the other end is blunt.

5. The LCD screen film tearing device according to claim 4, characterized in that: The vacuum suction cup (4) comprises a vacuum pump base (401), a connecting rod (402), a fixing frame (403), a vacuum pump (404), a transport suction cup (405) and an air pipe (406), wherein: One end of the vacuum pump (404) is fixedly connected to the output end of the robotic arm, and the other end of the vacuum pump (404) is fixed to the vacuum pump base (401). The vacuum pump base (401) is hinged to one end of the connecting rod (402), and one end of the connecting rod (402) is hinged to the fixed frame (403). The transport suction cup (405) is fixed below the fixed frame (403). The air pipe (406) is connected between the vacuum pump (404) and the transport suction cup (405). One end of the air pipe (406) is tightly connected to the output port of the vacuum pump (404), and the other end is connected to the suction port inside the transport suction cup (405).

6. The LCD screen film tearing device according to claim 5, characterized in that: A second fixed block (409) is fixed on the outside of the fixed frame (403), a second slide bar (410) is fixed on the second fixed block (409), a guide block (411) is slidably connected to the second slide bar (410), a first fixed block (407) is also fixed on the vacuum pump base (401), a first slide bar (408) is fixed on the first fixed block (407), one end of the first slide bar (408) is fixed on the first fixed block (407), and the other end extends toward the direction of the second fixed block (409) and is arranged between the second fixed block (409) and the guide block (411).

7. The LCD screen film tearing device according to claim 6, characterized in that: A sliding groove (414) is provided at the bottom of the vacuum pump base (401), and a push rod 1 (412) is fixed at the bottom of the vacuum pump base (401), and the push rod 1 (412) includes a push rod 1 output end, and a slider (413) is fixed on the push rod 1 output end, and the slider (413) is located in the sliding groove (414) and slides; the end of the slider (413) away from the push rod 1 (412) is hinged with a connecting rod 1 (415), and the end of the connecting rod 1 (415) away from the slider (413) is fixed with a rotating block (416), and the two sides of the rotating block (416) are rotatably connected with a connecting shaft (417), and the connecting shaft (417) is rotatably connected with a connecting rod 2 (418) and a connecting rod 3 (419), and the connecting rod 2 (418) is fixed at the bottom of the fixed frame (403), and the connecting rod 3 (419) is fixed at the bottom of the vacuum pump base (401).

8. The LCD screen film tearing device according to claim 7, characterized in that: The clamping assembly (5) comprises an electric guide rail 2 (501), a cylinder (502) and a clamping claw (503). The electric guide rail 2 (501) is fixedly connected to both sides of the processing platform (2), and each of the electric guide rails 2 (501) is slidably connected to a cylinder fixing seat, and the cylinder fixing seat is fixedly connected to a cylinder (502), and the piston end of the cylinder (502) is connected to the clamping claw (503).

9. The LCD screen film tearing device according to claim 8, characterized in that: The push rod output end faces the hollow end of the roller shaft (607), and the roller shaft (607) at the front end of the push rod output end is also provided with a vent hole 1 (616), and the vent hole 2 (617) is adapted to the vent hole 1 (616), and the fingertip of the clamp (503) is provided with soft material.

10. A film-tearing method for an LCD screen film-tearing device according to any one of claims 1 to 9, characterized in that: The mechanical arm (3) drives the vacuum suction cup (4) to fit the surface of the LCD screen without the protective film; the vacuum pump (404) is started to extract the air inside the transport suction cup (405) through the air pipe (406) to form a negative pressure, so that the LCD screen is firmly adsorbed on the transport suction cup (405); According to the size of the LCD screen, the angles of the vacuum pump base (401) and the transport suction cup (405) are adjusted through the linkage of push rod 1 (412), slider (413), connecting rod 1 (415), rotating block (416), connecting shaft (417), connecting rod 2 (418) and connecting rod 3 (419); During the transportation process, the fixing frame (403) and the transport suction cup (405) are kept level through the mechanisms such as the slide bar 1 (408), the guide block (411) and the slide bar 2 (410), so as to ensure smooth transportation; The mechanical arm (3) brings the LCD screen between the two clamping jaws (503) and stops moving; the cylinder (502) is started to drive the clamping jaws (503) to move toward each other, clamping and fixing the LCD screen; At this time, the side of the LCD screen with the protective film contacts the surface of the film tearing assembly (6); the push rod 2 (614) is started to make the vent hole 2 (617) communicate with the vent hole 1 (616) to connect the air path; the heating rod (610) is controlled to heat, and the vacuum pump (604) blows air, and the gas enters the inside of the roller (602) through the vent hole 2 on the roller shaft (607), and forms hot air after being heated by the heating rod (610); the hot air is blown out of the roller (602) through the suction cup (611), and the protective film of the LCD screen and the glue on the surface are evenly heated to soften them and make them easier to fall off; the motor 1 (606) drives the roller (602) to rotate, and the electric guide rail 1 (601) drives the sliding block (603) and the roller (602) to move, so as to ensure that the hot air acts evenly on the protective film and glue of the LCD screen; When the roller (602) moves to the initial position, the heating and the air extraction are stopped; the push rod (614) is started to restore the sliding plug (615) to its original position and cut off the air path; the air extraction pump (604) is restarted to form a negative pressure in the roller shaft (607); since the inside of the roller shaft (607) is connected to the suction cup (611) through the air hole (619), and the uppermost suction cup (611) is in contact with the LCD screen protective film, the protective film is smoothly sucked away due to the negative pressure under the action of the air extraction pump (604); the electric guide rail (601) and the motor (606) are started to make the roller (602) continue to rotate, and at the same time, the sliding block (603) moves smoothly along the electric guide rail (601), driving the LCD screen protective film to gradually complete the peeling process; during the peeling process, the scraper (622) follows closely to clean the glue remaining on the surface of the LCD screen to ensure the cleanliness of the LCD screen surface.

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