A device for breaking TFTs of display screens

Abstract

This application relates to the technical field of TFT display processing technology and provides a device for breaking TFT display panels. The device comprises a workbench, a linear module, a vacuum platform, a transport assembly, and a translation assembly. The linear module is mounted on the workbench, the vacuum platform is connected to the linear module, and is used to absorb the TFT display panel to be broken. The support surface of the vacuum platform is provided with a plurality of air holes, and the linear module is used to drive the vacuum platform to move along the Y-axis. The transport assembly is mounted on the workbench and located in the movement path of the vacuum platform. The transport assembly is used to break the TFT display panel on the vacuum platform. The transport assembly includes a transport nozzle, a transport cantilever, a lifting seat, a linear motor, a rotary motor, and a transport Z-axis. The transport nozzle is used to absorb the TFT display panel on the vacuum platform. This application facilitates breaking display panels.

Description

Technical Field

[0001] The present application relates to the technical field of display TFT processing, and in particular to a device for breaking TFTs of display screens. Background Art

[0002] TFT (Thin Film Transistor) displays are a common liquid crystal display technology. Their core principle is to independently control each pixel through thin-film transistors, enabling more precise voltage regulation and color display. They offer fast response times, high color reproduction, and excellent contrast, resulting in detailed and clear images. TFT displays are widely used in electronic devices such as mobile phones, computers, and televisions, providing users with a premium visual experience and becoming an indispensable technology in the modern display industry.

[0003] In the TFT production process of display screens, the breaking process is one of the key links, which directly affects the product yield and production efficiency. "Breaking" (or "splitting") is the process of dividing a large glass substrate into individual display units.

[0004] The substrates of TFT displays (such as tempered glass) are highly hard and brittle, necessitating laser cutting or diamond wheel scribing for mass production. Laser cutting involves scanning a high-energy laser beam across the glass surface, creating micron-level cuts. Mechanical stress is then applied to precisely fracture the glass along these cuts, resulting in smooth, debris-free edges. Wheel scribing involves creating shallow grooves on the glass surface using a diamond wheel. A cracking device then applies uniform stress to neatly split the glass along these grooves. TFT display breakage relies on precision machinery or laser cutting, with process design (such as marking lines and guide grooves) ensuring precise fracture accuracy.

[0005] As displays move toward higher resolution and larger sizes, the requirements for precision and efficiency in breaking films are becoming increasingly stringent. Traditional manual breaking methods are no longer sufficient for large-scale production, and automated film breaking equipment is becoming the mainstream. However, existing automated film breaking equipment still faces numerous challenges in terms of accuracy, stability, and cleanliness, and improvements are urgently needed. Summary of the Invention

[0006] In order to facilitate the breaking of display screens, improve the breaking accuracy and stability, and ensure the quality of products, the present application provides a breaking device for display screen TFTs.

[0007] The present application provides a device for breaking TFTs in a display screen, which adopts the following technical solution:

[0008] A device for breaking TFT display screens, comprising a workbench, a linear module, a vacuum platform, a transport assembly, and a translation assembly. The linear module is disposed on the workbench. The vacuum platform is connected to the linear module and is used to absorb the TFT display screen to be broken. A plurality of air holes are formed on the support surface of the vacuum platform. The linear module is used to drive the vacuum platform to move along the Y-axis.

[0009] The transport assembly is provided on the workbench and is located on the moving path of the vacuum platform. The transport assembly is used to break the TFT display screen on the vacuum platform. The transport assembly includes a transport nozzle, a transport cantilever, a lifting seat, a linear motor, a rotary motor, and a transport Z-axis. The lifting seat moves up and down along the transport Z-axis, and the linear motor is connected to the lifting seat.

[0010] One end of the transport cantilever is rotatably connected to the lifting seat, and the rotating motor is connected to the transport cantilever and is used to drive the transport cantilever to rotate; the transport suction nozzle is provided on the transport cantilever, and a plurality of the transport suction nozzles are distributed at intervals, and the transport suction nozzles are used to adsorb the TFT display screen on the vacuum platform; the translation assembly is connected to the transport Z axis and is used to control the transport Z axis to move along the X-axis direction.

[0011] By adopting the above technical solution, during processing, the staff first places the TFT glass substrate on a vacuum platform, and then evacuates the vacuum platform to form a negative pressure at the locations of the air holes, thereby completing the fixation of the TFT glass substrate.

[0012] The vacuum platform is then moved to a position close to the handling assembly using a linear module. To break the TFT glass substrates, the translation assembly is used to adjust the handling assembly's position relative to the vacuum platform, allowing the substrates to be broken off piece by piece in a specific direction. Once the position is adjusted, the linear motor controls the lift to move downward along the Z-axis, allowing the handling nozzle to contact the TFT glass substrate, generating negative pressure and securing it.

[0013] The lift is then controlled to move upward, moving the transport arm away from the vacuum platform. Simultaneously, a rotary motor drives the transport arm to rotate, creating a certain angle between the portion of the TFT glass substrate held by the nozzle and the remaining portion. This creates a bending force on the TFT glass substrate, separating the large glass substrate into individual display units. Finally, the translation assembly is driven again to control the transport arm's horizontal movement, allowing the separated TFT display to be stably placed on the workbench.

[0014] By repeating the above-mentioned breaking operation, a large glass substrate can be divided into several small TFT displays of the same specifications. The entire production process is highly automated, making it easier to break the display, improving the breaking accuracy and stability, and reducing labor intensity.

[0015] Preferably, the linear module includes a conveying Y-axis, a Y-axis slide and an electric motor. The conveying Y-axis is arranged on the workbench, the Y-axis slide is slidably connected to the conveying Y-axis, the electric motor is connected to the Y-axis slide, and is used to control the Y-axis slide to move along the Y-axis direction, and the vacuum platform is arranged on the Y-axis slide.

[0016] By adopting the above technical solution, the vacuum platform is installed on the Y-axis slide, and the electric motor can drive the Y-axis slide to move linearly along the conveying Y-axis, making it convenient to transfer the vacuum platform.

[0017] Preferably, the translation assembly includes a conveying X-axis and an X-axis slide. The conveying X-axis is arranged on the workbench and is perpendicular to the conveying Y-axis. The X-axis slide is slidably connected to the conveying X-axis. The transport Z-axis is arranged on the conveying X-axis.

[0018] By adopting the above technical solution, the X-axis slide can move linearly along the conveying X-axis under the action of control components such as a cylinder or a ball screw pair, thereby driving the entire handling assembly to move horizontally and changing the relative position of the handling cantilever and the vacuum platform.

[0019] Preferably, the workbench is provided with a finished product placement area and a waste placement area, and the finished product placement area and the waste placement area are respectively located on both sides of the vacuum platform; the finished product placement area and the waste placement area are on the moving path of the transport Z axis, the finished product placement area is used to store the TFT display screen after breaking, and the waste placement area is used to store waste.

[0020] By adopting this technical solution, intact TFT displays can be stored in the finished product storage area after breaking. Damaged displays, which inevitably occur during the breaking process, can be moved and stacked in the waste storage area, ensuring separate storage for finished and defective products, avoiding mixing and facilitating subsequent processing. Post-breakage integrity testing of TFT displays uses sensors or other inspection devices to assess the physical structure. For example, a high-resolution industrial camera (such as a CCD / CMOS camera) is used to photograph the surface of the broken display. Image processing algorithms (such as edge detection and defect recognition) are then used to compare the image with a standard image to detect physical damage such as cracks, chipped edges, and residual debris.

[0021] Preferably, it also includes a profile cover and an ion wind rod, the workbench is arranged in the profile cover, one end of the conveying Y-axis extends out of the profile cover, the ion wind rod is arranged inside the profile cover and above the conveying cantilever, and the ion wind rod is used to eliminate static electricity on the surface of the TFT display screen.

[0022] By adopting the above technical solution, the profile cover can shield and protect the entire workbench, preventing workers from coming directly close to the vacuum platform during TFT display processing, thereby improving production safety. Static electricity is easily generated during the TFT display breaking process. The ion wind wand is a device that generates positive and negative ions by ionizing the air, thereby eliminating static electricity on the surface of objects. Its core function is to effectively control static electricity and prevent static electricity hazards. It is widely used in industrial scenarios that are sensitive to static electricity. By ionizing the air to generate ion pairs, it efficiently neutralizes static electricity in a non-contact manner, fundamentally solving the problems of product defects, reduced production efficiency, and safety hazards caused by static electricity, and ensuring product quality.

[0023] Preferably, a first partition window and a second partition window are provided on the side wall of the profile cover, and the first partition window and the second partition window are used to connect the inside and the outside of the profile cover, and the first partition window and the second partition window are casement windows or sliding windows; the first partition window is close to the finished product placement area, and the second partition window is close to the waste placement area.

[0024] By adopting the above technical solution, when the staff wants to collect the finished TFT glass substrates, they can open the first partition window to achieve communication between the inside and outside of the profile cover, making it convenient for the staff to reach the workbench. Similarly, the staff can also complete the collection of defective TFT glass substrates by opening the second partition window. During the sheet breaking process, the first partition window and the second partition window are in a closed state, thereby improving production safety. The structure of the casement window or the sliding window belongs to the existing technical means and can be directly applied to this application, so it will not be elaborated here. In some embodiments, the first partition window and the second partition window can be set as transparent windows to facilitate observation by the staff.

[0025] Preferably, it further comprises a safety grating, and both the first barrier window and the second barrier window are provided with the safety grating.

[0026] By adopting the above technical solution, the safety light grid is a safety protection device that forms a protective light curtain by emitting infrared light beams and triggers a safety signal when an object is detected entering to protect the safety of personnel or the normal operation of equipment.

[0027] Preferably, it also includes a pushing assembly, which is arranged on the workbench and is used to push the TFT display screen on the vacuum platform; the pushing assembly includes a guide rail, a guide seat and a push plate, the guide rail is arranged on the workbench and is arranged along the X-axis direction, the guide seat is slidably connected to the guide rail, and the moving direction is parallel to the moving direction of the transport Z-axis, the push plate is arranged on the guide seat and is located on one side of the vacuum platform, and the push plate is used to push the TFT display screen on the vacuum platform.

[0028] By employing this technical solution, once the handling assembly has finished breaking a small TFT glass substrate, the handling cantilever and translation assembly work together to transfer the broken TFT display to the finished product placement area. Simultaneously, the vacuum platform removes its suction force on the remaining TFT glass substrates and, in conjunction with the pusher assembly, pushes the TFT glass substrates on the vacuum platform a certain distance to facilitate subsequent breaking.

[0029] When pushing the material, the guide seat is controlled to move horizontally along the guide rail. The movement of the guide seat can synchronously drive the push plate to move, so that the push plate can smoothly push the TFT glass substrate on the vacuum platform to realize the movement of the TFT glass substrate.

[0030] Preferably, the vacuum platform further comprises an adjustment component, the adjustment component being arranged on the vacuum platform and dividing the vacuum platform into a negative pressure area and a normal area; the vacuum platform comprises a support plate, a bottom plate and side plates, the support plate and the bottom plate being parallel to each other and facing each other up and down, the side plates being arranged between the support plate and the bottom plate, so that a closed cavity is formed inside the vacuum platform; the bottom plate is connected to the linear module, the air holes are arranged on the support plate, and each of the air holes is in communication with the cavity;

[0031] The adjustment assembly includes a sealing cloth, a top plate and a driving member. The sealing cloth is arranged in the cavity and is flexible. One side of the sealing cloth is connected to the support plate, and the other side is connected to the bottom plate. The top plate is movably connected to the vacuum platform, and the top plate passes through the side plate and is used to fit and cover the sealing cloth on the support plate. The sealing cloth is used to block some air holes on the support plate. The driving member is connected to the top plate and is used to control the movement of the top plate. The side plate is made of transparent material.

[0032] By employing this technical solution, the adjustment assembly divides the vacuum platform into a negative pressure zone and a normal zone. The negative pressure zone exerts suction on the TFT glass substrates, while the normal zone has no suction and corresponds to a single TFT display. During the breakup process, the handling assembly primarily breaks the TFT glass substrates in the normal zone. Once the TFT glass substrates in the normal zone are broken, the pushing assembly pushes the remaining TFT glass substrates from the negative pressure zone to the normal zone. This repetitive cycle gradually breaks a large TFT glass substrate into several smaller TFT displays.

[0033] During the production process, TFT glass substrates of different specifications need to be broken, that is, the width of the TFT display screen after breaking is different. At this time, the width range of the general area needs to be adjusted accordingly so that the handling cantilever can better break the substrates.

[0034] During adjustment, the top plate is controlled by a drive element to move horizontally. As it moves toward the interior of the vacuum platform, it continuously covers the sealing cloth with the support plate, thereby partially blocking the air holes in the support plate. As a result, the area of ​​the normal zone increases. As the top plate moves outward, the area pressed against the sealing cloth gradually decreases, and the sealing cloth sags under its own weight. As a result, the area of ​​the normal zone decreases.

[0035] By setting the side panels to be transparent, it is convenient for staff to observe the position of the top panel in the closed cavity through the side panels, helping staff to roughly determine the position of the top panel.

[0036] Preferably, it further comprises a pressing plate, one side of which is rotatably connected to the transport cantilever via a torsion spring, the rotating shaft of the pressing plate is parallel to the rotating shaft of the transport cantilever, and the pressing plate is used to press against the vacuum platform.

[0037] By adopting this technical solution, as the transport arm moves downward along the Z-axis, the pressure plate follows and approaches the vacuum platform. When the transport nozzle is attached to a TFT glass substrate in the normal area, the pressure plate presses on other TFT glass substrates not being attached by the transport nozzle, improving the stability of the TFT glass substrates in the negative pressure area. When the rotary motor controls the rotation of the transport arm, the pressure plate also adapts to rotate, maintaining pressure on the TFT glass substrates in the negative pressure area while the transport arm is not rising.

[0038] In summary, this application includes at least one of the following beneficial technical effects:

[0039] (1) By setting up a linear module, a vacuum platform, a handling assembly, and a translation assembly, during processing, the worker first places the TFT glass substrate on the vacuum platform and then fixes the TFT glass substrate by evacuating the vacuum platform. Then, the linear module is used to move the vacuum platform to a position close to the handling assembly, and the handling assembly is used to break the TFT glass substrate. Finally, the translation assembly is driven again to control the horizontal movement of the handling cantilever so that the broken TFT display screen can be placed stably on the workbench.

[0040] (2) By setting a pushing assembly, the pushing assembly can push the TFT glass substrate on the vacuum platform, thereby changing the position of the TFT glass substrate to be broken relative to the vacuum platform.

[0041] (3) By setting up the adjustment component, during the production process, the staff can change the area size of the general area according to the specifications of the TFT glass substrate, so as to better break the TFT glass substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a schematic structural diagram of a tablet breaking device in one embodiment of the present application;

[0043] Figure 2 This is a schematic structural diagram of a tablet breaking device from another perspective in one embodiment of the present application;

[0044] Figure 3 This is a schematic structural diagram of a sheet breaking device in an embodiment of the present application in which the profile cover is omitted;

[0045] Figure 4 This is a partial structural diagram of a tablet breaking device in one embodiment of the present application;

[0046] Figure 5 yes Figure 3 Structural diagram from another perspective;

[0047] Figure 6 This is a schematic structural diagram of a vacuum platform in one embodiment of the present application;

[0048] Figure 7 is a cross-sectional schematic diagram of a vacuum platform in another embodiment of the present application;

[0049] Figure 8 It is a partial structural diagram of a tablet breaking device in another embodiment of the present application.

[0050] Reference numerals: 1, profile cover; 2, workbench; 3, linear module; 31, conveying Y axis; 32, Y axis slide; 33, electric motor; 4, vacuum platform; 41, support plate; 42, bottom plate; 43, side plate; 5, transport assembly; 51, transport nozzle; 52, transport cantilever; 53, lifting seat; 54, linear motor; 55, rotary motor; 56, transport Z axis; 6, translation assembly; 61, conveying X axis; 62, X-axis slide; 7. Air hole; 8. Ion wind rod; 9. Finished product placement area; 10. Waste material placement area; 11. First partition window; 12. Second partition window; 13. Safety grating; 14. Adjustment assembly; 141. Sealing cloth; 142. Top plate; 143. Driving part; 15. Pushing assembly; 151. Guide rail; 152. Guide seat; 153. Pushing plate; 16. Negative pressure area; 17. Ordinary area; 18. Cavity; 19. Pressing plate. DETAILED DESCRIPTION

[0051] The following will describe the technical solution of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. The present application can be embodied in many different forms and is not limited to the embodiments described here.

[0052] Throughout the present application, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0054] In the description of the embodiments of this application, unless otherwise specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, integration, or mechanical connections. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this application based on specific circumstances.

[0055] Some embodiments of the present application are described in detail below with reference to the accompanying drawings. In the absence of conflict, those skilled in the art may combine and combine the different embodiments or examples and features of the different embodiments or examples shown in the present application.

[0056] The embodiment of the present application discloses a device for breaking a TFT of a display screen. Figures 1 to 3 The sheet breaking device includes a profile cover 1, a workbench 2, a linear module 3, a vacuum platform 4, a transport component 5 and a translation component 6. The profile cover 1 is hollow, and the workbench 2 is installed inside the profile cover 1. The profile cover 1 is fixed to the ground and is used to block and protect the workbench 2. The linear module 3 is installed on the workbench 2, and the vacuum platform 4 is connected to the linear module 3, which is used to adsorb the TFT glass substrate to be broken, and the linear module 3 is used to drive the vacuum platform 4 to move along the Y-axis direction. A number of air holes 7 are provided on the supporting surface of the vacuum platform 4, and the air holes 7 are used to generate negative pressure, thereby adsorbing the TFT glass substrate on the vacuum platform 4. The air holes 7 of the vacuum platform 4 can generate negative pressure by vacuuming with an external vacuum pump. The means of generating negative pressure belong to the existing technical means, and other methods can also be reasonably selected according to needs.

[0057] Combine Figure 4 The linear module 3 includes a conveying Y-axis 31, a Y-axis slide 32, and an electric motor 33. The conveying Y-axis 31 is fixedly connected to the workbench 2, and one end extends out of the profile cover 1; the Y-axis slide 32 is slidably connected to the conveying Y-axis 31, and the vacuum platform 4 is fixedly mounted on the Y-axis slide 32. The electric motor 33 is connected to the Y-axis slide 32 and is used to control the movement of the Y-axis slide 32 along the Y-axis direction. The movement of the Y-axis slide 32 is not limited to the electric motor 33. For example, the electric motor 33 can also be replaced by a cylinder drive. The electric motor 33 can drive the Y-axis slide 32 to move linearly along the conveying Y-axis 31. Since the vacuum platform 4 is mounted on the Y-axis slide 32, the horizontal movement of the vacuum platform 4 is achieved.

[0058] The transport assembly 5 is mounted on the workbench 2 and located in the moving path of the vacuum platform 4. It is used to break the TFT glass substrates on the vacuum platform 4. The transport assembly 5 includes a transport nozzle 51, a transport cantilever 52, a lift 53, a linear motor 54, a rotary motor 55, and a transport Z-axis 56. The transport Z-axis 56 is vertically arranged along the Z-axis. The lift 53 moves up and down along the transport Z-axis 56. The linear motor 54 is connected to the lift 53 to control its elevation.

[0059] The transport arm 52 is longitudinally parallel to the transport Y-axis. One end of the transport arm 52 is rotatably connected to the lift base 53, with the axis of rotation of the transport arm 52 parallel to its longitudinal direction. A rotary motor 55 is mounted on the lift base 53. The output shaft of the rotary motor 55 is connected to the transport arm 52 and is used to drive the transport arm 52 in rotation. A plurality of transport nozzles 51 are mounted on the transport arm 52, spaced apart. These nozzles are used to absorb TFT glass substrates from the vacuum platform 4. The translation assembly 6 is connected to the transport Z-axis 56 and controls the movement of the entire transport Z-axis 56 along the X-axis.

[0060] Combine Figure 5 Specifically, the translation assembly 6 includes a conveying X-axis 61 and an X-axis slide 62. The conveying X-axis 61 is fixedly mounted on the workbench 2 and is perpendicular to the conveying Y-axis 31. The conveying X-axis 61 and the conveying Y-axis 31 are in the same horizontal plane. The X-axis slide 62 is slidably connected to the conveying X-axis 61. The drive source of the X-axis slide 62 can be a cylinder or a ball screw pair. The transport Z-axis 56 is fixedly mounted on the conveying X-axis 61. When the X-axis slide 62 moves, it can drive the entire transport assembly 5 to move horizontally, changing the relative position of the transport cantilever 52 and the vacuum platform 4.

[0061] In this embodiment, an ionizing wind bar 8 is also installed inside the profile housing 1. The ionizing wind bar 8 is located above the transport cantilever 52 and is used to eliminate static electricity on the surface of the TFT display. The ionizing wind bar 8 is a device that generates positive and negative ions by ionizing air, thereby eliminating static electricity on the surface of objects. Its core function is to effectively control static electricity and prevent the harm of static electricity. It is widely used in static-sensitive industrial scenarios. By ionizing air to generate ion pairs, it effectively neutralizes static electricity in a non-contact manner, fundamentally solving the problems of product defects, reduced production efficiency, and safety hazards caused by static electricity, thereby ensuring product quality.

[0062] During processing, the staff first places the TFT glass substrate on the vacuum platform 4, and evacuates the vacuum platform 4 to form a negative pressure at the locations of the air holes 7, thereby completing the fixation of the TFT glass substrate.

[0063] The linear module 3 then moves the vacuum platform 4 to a position close to the transport assembly 5. To break the TFT glass substrates, the translation assembly 6 adjusts the position of the transport assembly 5 relative to the vacuum platform 4, allowing the TFT glass substrates to be broken off piece by piece in a specific direction. After the position is adjusted, the linear motor 54 controls the lift 53 to move downward along the transport Z-axis 56, allowing the transport nozzle 51 to contact the TFT glass substrates. This generates negative pressure and allows the nozzle 51 to adhere to the TFT glass substrates.

[0064] The lifting platform 53 is then controlled to move upward, causing the transport arm 52 to move away from the vacuum platform 4. Simultaneously, the rotary motor 55 drives the transport arm 52 to rotate, creating a certain angle between the portion of the TFT glass substrate held by the transport nozzle 51 and the remaining portion of the TFT glass substrate. This creates a bending force on the TFT glass substrate, thereby separating the large glass substrate into individual display units. Finally, the translation assembly 6 is driven again to control the transport arm 52 to move horizontally, allowing the separated TFT display to be stably placed on the workbench 2.

[0065] By repeating the above-mentioned breaking operation, a large glass substrate can be divided into several small TFT displays of the same specifications. The entire production process is highly automated, making it easier to break the display, improving the breaking accuracy and stability, and reducing labor intensity.

[0066] Among them, the workbench 2 is respectively provided with a finished product placement area 9 and a waste placement area 10, which are respectively located on both sides of the vacuum platform 4; at the same time, the finished product placement area 9 and the waste placement area 10 are also respectively located at both ends of the conveying X-axis 61, so that the finished product placement area 9 and the waste placement area 10 are on the moving path of the transport Z-axis 56. The finished product placement area 9 is used to store the TFT display screen after the broken piece is stored, and the waste placement area 10 is used to store the waste. The TFT display screen that is intact after breaking can be stored in the finished product placement area 9. If it is inevitably damaged during the breaking process, this part of the defective products can be transported and stacked in the waste placement area 10, so that the finished product and defective products can be stored independently, avoiding mixing and facilitating subsequent processing by the staff.

[0067] In this embodiment, the side walls of the profile housing 1 are provided with a first barrier window 11 and a second barrier window 12, respectively. Both the first barrier window 11 and the second barrier window 12 connect the interior and exterior of the profile housing 1 and are opened and closed using casement or sliding windows. The first barrier window 11 is located near the finished product storage area 9, while the second barrier window 12 is located near the waste storage area 10. Both the first and second barrier windows 11 and 12 are equipped with a horizontally positioned safety grating 13. The safety grating 13 is a safety device that emits infrared beams to form a protective light curtain and triggers a safety signal when an object enters, protecting personnel or ensuring the normal operation of the equipment. When a worker wishes to collect finished TFT glass substrates, they can open the first barrier window 11, connecting the interior and exterior of the profile housing 1 and making it easier for them to reach the workbench 2. Similarly, workers can also collect defective TFT glass substrates by opening the second barrier window 12. During the sheet breaking process, the first barrier window 11 and the second barrier window 12 are in a closed state, thereby improving production safety.

[0068] Reference Figure 6 and Figure 7 In addition, in some embodiments, an adjustment component 14 is further installed on the vacuum platform 4. The adjustment component 14 is used to separate the vacuum platform 4 into a negative pressure area 16 and a normal area 17. The vacuum platform 4 includes a support plate 41, a bottom plate 42, and a side plate 43. The support plate 41 and the bottom plate 42 are parallel to each other and face each other up and down. The side plate 43 is located between the support plate 41 and the bottom plate 42 and is used to connect the support plate 41 and the bottom plate 42. A closed cavity 18 is formed between the support plate 41, the bottom plate 42, and each side plate 43. The bottom plate 42 is fixedly mounted on the Y-axis slide 32. The support plate 41 is used to position the TFT glass substrate. The air holes 7 are spaced apart on the support plate 41, and each air hole 7 is connected to the closed cavity 18. The side plate 43 is made of a transparent material, and the transparent material includes but is not limited to acrylic plate and glass.

[0069] The adjustment assembly 14 includes a sealing cloth 141, a top plate 142 and a driving member 143. The sealing cloth 141 is installed in the cavity 18 and is flexible. One side of the sealing cloth 141 is fixedly connected to the support plate 41, and the other side is fixedly connected to the bottom plate 42. The top plate 142 is movably connected to the vacuum platform 4, and the direction of movement of the top plate 142 and the direction of movement of the push plate 153 are in the same straight line, but in opposite directions. The top plate 142 passes through the side plate 43 and is used to fit the sealing cloth 141 on the support plate 41. The sealing cloth 141 is used to block some of the air holes 7 on the support plate 41. The area blocked by the sealing cloth 141 is the ordinary area 17, and the other unsealed areas are the negative pressure areas 16. The driving member 143 is connected to the top plate 142 and is used to control the linear movement of the top plate 142. In this embodiment, the driving member 143 is a pneumatic cylinder.

[0070] A pusher assembly 15 is also mounted on the workbench 2. This assembly is used to push the TFT display screen on the vacuum platform 4. The pusher assembly 15 comprises a guide rail 151, a guide seat 152, and a push plate 153. The guide rail 151 is fixedly mounted on the workbench 2 and arranged along the X-axis, such that the guide rail 151 and the conveying X-axis 61 are parallel to each other. The guide seat 152 is slidably connected to the guide rail 151, and its movement direction is parallel to the movement direction of the transport Z-axis 56. The guide seat 152 can be driven by a variety of existing technologies, such as a cylinder or a ball screw pair, which can be selected based on actual needs. The push plate 153 is mounted on the guide seat 152 and is located between the finished product placement area 9 and the waste placement area 10. The push plate 153 is positioned near one side of the vacuum platform 4 and is used to push the TFT glass substrate on the vacuum platform 4. After the TFT glass substrate in the normal area 17 is broken, the push plate 153 pushes the TFT glass substrate in the negative pressure area 16 a certain distance to facilitate the next breaking operation of the transport assembly 5.

[0071] The adjustment assembly 14 divides the vacuum platform 4 into a negative pressure zone 16 and a normal zone 17. The negative pressure zone 16 applies suction to the TFT glass substrate, thereby securing it. The normal zone 17, on the other hand, lacks suction. The suction of the transport nozzle 51 allows the TFT glass substrate in the normal zone 17 to be broken off. This zone corresponds to a single TFT display. During breaking, the transport assembly 5 primarily breaks the TFT glass substrate in the normal zone 17. Once the TFT glass substrate in the normal zone 17 has been broken off, the pusher assembly 15 pushes the remaining TFT glass substrate from the negative pressure zone 16 to the normal zone 17. This repetitive cycle gradually breaks a large TFT glass substrate into several smaller TFT displays.

[0072] During the production process, TFT glass substrates of different specifications need to be broken, that is, the widths of the TFT display screens after breaking are different. At this time, the width range of the general area 17 needs to be adjusted accordingly so that the transport cantilever 52 can better break the substrates.

[0073] During adjustment, the driving member 143 is used to control the horizontal movement of the top plate 142. When the top plate 142 moves into the internal cavity 18 of the vacuum platform 4, the top plate 142 can continuously fit the sealing cloth 141 to cover the support plate 41, thereby blocking the air holes 7 of a portion of the support plate 41. At this time, the area of ​​the general area 17 tends to increase. When the top plate 142 moves outward, the area where the top plate 142 is pressed against the sealing cloth 141 will gradually decrease, and the sealing cloth 141 will sag under its own gravity. At this time, the area of ​​the general area 17 tends to decrease. At the same time, by setting the side plate 43 to be transparent, it is convenient for the staff to observe the position of the top plate 142 in the closed cavity 18 through the side plate 43, helping the staff to roughly judge the position of the top plate 142.

[0074] Reference Figure 8 According to some embodiments of the present application, a pressure plate 19 is optionally rotatably connected to the transport arm 52. The pressure plate 19 is parallel to the vacuum platform 4. One side of the pressure plate 19 is connected to the transport arm 52 via a torsion spring, so that the rotation axis of the pressure plate 19 and the rotation axis of the transport arm 52 are parallel to each other. The pressure plate 19 is used to press the TFT display screen in the negative pressure area 16 of the vacuum platform 4. When the transport arm 52 moves downward along the transport Z-axis 56, the pressure plate 19 will follow and approach the vacuum platform 4. When the transport nozzle 51 is attached to the TFT glass substrate in the ordinary area 17, the pressure plate 19 will press on other TFT glass substrates not attached by the transport nozzle 51, thereby improving the stability of the TFT glass substrate in the negative pressure area 16. When the rotary motor 55 controls the rotation of the transport arm 52, the pressure plate 19 can also make adaptive rotation, maintaining pressure on the TFT glass substrate in the negative pressure area 16 when the transport arm 52 has not yet risen.

[0075] The implementation principle of a TFT breaking device for a display screen in an embodiment of the present application is as follows: during processing, the staff first places the TFT glass substrate on the vacuum platform 4, and evacuates the vacuum platform 4 so that the TFT glass substrate in the negative pressure area 16 is adsorbed and fixed, while the TFT glass substrate in the ordinary area 17 will not be adsorbed.

[0076] The linear module 3 then moves the vacuum platform 4 to a position near the transport assembly 5. To break the TFT glass substrates, the translation assembly 6 adjusts the position of the transport assembly 5 relative to the vacuum platform 4, allowing the TFT glass substrates to be broken off piece by piece in a specific direction. After the position is adjusted, the linear motor 54 controls the lift 53 to move downward along the transport Z-axis 56, allowing the transport nozzle 51 to contact the TFT glass substrates. The nozzle 51 generates negative pressure and adheres to the TFT glass substrates in the normal area 17.

[0077] The lifting platform 53 is then controlled to move upward, causing the transport arm 52 to move away from the vacuum platform 4. Simultaneously, the rotary motor 55 drives the transport arm 52 to rotate, creating a certain angle between the portion of the TFT glass substrate held by the transport nozzle 51 and the remaining portion of the TFT glass substrate. This creates a bending force on the TFT glass substrate by the transport arm 52, thereby separating the large glass substrate into individual display units. The translation assembly 6 is then driven again to control the transport arm 52 to move horizontally, allowing the separated TFT display screen to be stably placed on the finished product placement area 9 of the workbench 2.

[0078] The suction force on the remaining TFT glass substrates is then removed, and the pusher assembly 15 is used to push the TFT glass substrates on the vacuum platform 4 a certain distance to the general area 17. The above-mentioned breaking operation is then repeated, thus separating the large glass substrate into several small TFT display panels of the same specifications. The entire production process is highly automated, facilitating the breaking of display panels, improving breaking accuracy and stability, and reducing labor intensity.

[0079] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A device for breaking TFTs of display screens, characterized in that: The invention comprises a workbench (2), a linear module (3), a vacuum platform (4), a transport component (5) and a translation component (6), wherein the linear module (3) is arranged on the workbench (2), the vacuum platform (4) is connected to the linear module (3) and is used to absorb the TFT display screen to be broken, a plurality of air holes (7) are provided on the supporting surface of the vacuum platform (4), and the linear module (3) is used to drive the vacuum platform (4) to move along the Y-axis direction; The transport assembly (5) is provided on the workbench (2) and is located on the moving path of the vacuum platform (4). The transport assembly (5) is used to break the TFT display screen on the vacuum platform (4). The transport assembly (5) includes a transport nozzle (51), a transport cantilever (52), a lifting seat (53), a linear motor (54), a rotary motor (55) and a transport Z-axis (56). The lifting seat (53) moves up and down along the transport Z-axis (56). The linear motor (54) is connected to the lifting seat (53). One end of the transport cantilever (52) is rotatably connected to the lifting seat (53), and the rotating motor (55) is connected to the transport cantilever (52) and is used to drive the transport cantilever (52) to rotate; the transport suction nozzle (51) is provided on the transport cantilever (52), and a plurality of the transport suction nozzles (51) are spaced apart, and the transport suction nozzles (51) are used to adsorb the TFT display screen on the vacuum platform (4); the translation assembly (6) is connected to the transport Z axis (56) and is used to control the transport Z axis (56) to move along the X axis direction; The linear module (3) includes a conveying Y-axis (31), a Y-axis slide (32) and an electric motor (33), wherein the conveying Y-axis (31) is arranged on the workbench (2), the Y-axis slide (32) is slidably connected to the conveying Y-axis (31), the electric motor (33) is connected to the Y-axis slide (32) and is used to control the Y-axis slide (32) to move along the Y-axis direction, and the vacuum platform (4) is arranged on the Y-axis slide (32); It also includes a pressing plate (19), one side of which is rotatably connected to the transport cantilever (52) via a torsion spring, the rotating axis of the pressing plate (19) and the rotating axis of the transport cantilever (52) being parallel, and the pressing plate (19) being used to press against the TFT display screen of the vacuum platform (4).

2. The device for breaking TFT of a display screen according to claim 1, characterized in that: The translation assembly (6) includes a conveying X-axis (61) and an X-axis slide (62), wherein the conveying X-axis (61) is arranged on the workbench (2) and is perpendicular to the conveying Y-axis (31), the X-axis slide (62) is slidably connected to the conveying X-axis (61), and the transport Z-axis (56) is arranged on the conveying X-axis (61).

3. The device for breaking TFT of a display screen according to claim 2, characterized in that: The workbench (2) is provided with a finished product placement area (9) and a waste material placement area (10), respectively. The finished product placement area (9) and the waste material placement area (10) are respectively located on both sides of the vacuum platform (4); the finished product placement area (9) and the waste material placement area (10) are located on the moving path of the transport Z axis (56), the finished product placement area (9) is used for storing the TFT display screen after being broken, and the waste material placement area (10) is used for storing the waste.

4. The device for breaking TFT of a display screen according to claim 3, characterized in that: It also includes a profile cover (1) and an ion wind rod (8), wherein the workbench (2) is arranged inside the profile cover (1), one end of the conveying Y axis (31) extends out of the profile cover (1), and the ion wind rod (8) is arranged inside the profile cover (1) and above the conveying cantilever (52), and the ion wind rod (8) is used to eliminate static electricity on the surface of the TFT display screen.

5. The device for breaking TFT of a display screen according to claim 4, characterized in that: A first partition window (11) and a second partition window (12) are provided on the side wall of the profile cover (1), the first partition window (11) and the second partition window (12) being used to connect the interior and the exterior of the profile cover (1), the first partition window (11) and the second partition window (12) being casement windows or sliding windows; the first partition window (11) is close to the finished product placement area (9), and the second partition window (12) is close to the waste material placement area (10).

6. The device for breaking TFT of a display screen according to claim 5, characterized in that: It also includes a safety grating (13), and the first barrier window (11) and the second barrier window (12) are both provided with the safety grating (13).

7. The device for breaking TFT of a display screen according to claim 1, characterized in that: The invention also includes a pushing assembly (15), which is arranged on the workbench (2) and is used to push the TFT display screen on the vacuum platform (4); the pushing assembly (15) includes a guide rail (151), a guide seat (152) and a push plate (153), the guide rail (151) is arranged on the workbench (2) and is arranged along the X-axis direction, the guide seat (152) is slidably connected to the guide rail (151), and the moving direction is parallel to the moving direction of the transport Z-axis (56), the push plate (153) is arranged on the guide seat (152) and is located on one side of the vacuum platform (4), and the push plate (153) is used to push the TFT display screen on the vacuum platform (4).

8. The device for breaking TFT of a display screen according to claim 7, characterized in that: The vacuum platform (4) further comprises an adjusting component (14), wherein the adjusting component (14) is arranged on the vacuum platform (4) and divides the vacuum platform (4) into a negative pressure area (16) and a normal area (17); the vacuum platform (4) comprises a support plate (41), a bottom plate (42) and a side plate (43), wherein the support plate (41) and the bottom plate (42) are parallel to each other and face each other from top to bottom, and the side plate (43) is arranged between the support plate (41) and the bottom plate (42), so that a closed cavity (18) is formed inside the vacuum platform (4); the bottom plate (42) is connected to the linear module (3), and the air holes (7) are arranged on the support plate (41), and each of the air holes (7) is communicated with the cavity (18); The regulating assembly (14) comprises a sealing cloth (141), a top plate (142) and a driving member (143), wherein the sealing cloth (141) is arranged in the cavity (18) and is flexible; one side of the sealing cloth (141) is connected to the support plate (41), and the other side is connected to the bottom plate (42); the top plate (142) is movably connected to the vacuum platform (4), the top plate (142) passes through the side plate (43), and is used to fit the sealing cloth (141) on the support plate (41), and the sealing cloth (141) is used to block part of the air holes (7) on the support plate (41); the driving member (143) is connected to the top plate (142) and is used to control the movement of the top plate (142); wherein the side plate (43) is made of a transparent material.

Images