A sealed, dustproof precision TFT cutting machine

Abstract

This invention discloses a closed-loop dustproof precision TFT cutting machine, relating to the field of TFT cutting technology. It includes a machine body with several support legs fixed to its bottom. A conveying assembly is located above the machine body, comprising several fixed plates, all fixed inside the machine body, with support plates between the plates. Two rotating rollers are mounted on the fixed plates, and a conveyor belt is mounted on the two rollers. A partition is fixed above the fixed plates, and a conveyor motor is fixed to the side of the fixed plates. The output shaft of the conveyor motor is connected to one of the rotating rollers via a commutator. An adjustment assembly is located above the conveyor belt, and a dust removal assembly is located above the machine body. This invention achieves fully automated processing of TFT substrates by integrating conveying, angle adjustment, three-dimensional precise positioning cutting, and a closed-loop dust removal system. Near-source suction combined with dual filtration effectively controls dust, maintains internal cleanliness, and meets high-precision cutting and environmental emission requirements.

Description

Technical Field

[0001] This invention relates to the field of TFT cutting technology, specifically to a sealed, dustproof precision TFT cutting machine. Background Technology

[0002] In the manufacturing process of TFT (Thin Film Transistor) LCD panels, glass substrates need to be precisely cut to form individual display units. These substrates are brittle, require high surface cleanliness, and the cutting paths often include non-orthogonal angles, placing stringent demands on equipment positioning accuracy, angle adjustment capabilities, and dustproof performance. Traditional cutting equipment often employs an open structure, allowing glass dust generated during cutting to easily diffuse into the working environment. This not only contaminates the substrate surface, leading to a decrease in yield, but may also affect the health of operators. While some equipment is equipped with dust removal devices, the exhaust vents are fixed in position and cannot move synchronously with the cutting head, resulting in low dust collection efficiency. Furthermore, existing adjustment mechanisms often rely on manual or pneumatic rotary platforms, which suffer from large angle control errors, slow response speeds, and insufficient repeatability. If the conveying system lacks effective limiting and area isolation, the substrate is prone to shifting during transport, affecting subsequent alignment and cutting. Simultaneously, the cutting actuator often uses unidirectional movement or cylinder pressing, making it difficult to achieve complex trajectory cutting, and air pressure fluctuations can easily cause inconsistent cutting depths. Summary of the Invention

[0003] The purpose of this invention is to provide a closed, dustproof precision TFT cutting machine to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a closed-type dustproof precision TFT cutting machine, comprising a machine body, several support legs fixed at the bottom of the machine body, a conveying assembly arranged above the machine body, the conveying assembly comprising several fixed plates, all of which are fixed inside the machine body, a support plate arranged between the fixed plates, two rotating rollers arranged on the fixed plates, a conveyor belt arranged on the two rotating rollers, a partition plate fixed above the fixed plates, a conveyor motor fixed on the side of the fixed plates, the output shaft of the conveyor motor connected to one of the rotating rollers through a commutator, an adjustment assembly arranged above the conveyor belt, and a dust removal assembly arranged above the machine body.

[0005] With the above structure, the machine body serves as the supporting structure for the entire machine, and its bottom is stably placed by several support legs; the conveying assembly is installed inside the machine body, and is composed of several fixed plates fixed to the machine body to form a frame, with support plates between the fixed plates to enhance structural rigidity; two rotating rollers are mounted parallel to each other on the fixed plates, and a conveyor belt is fitted around their outer periphery to form a continuous conveying surface; the conveyor motor is installed on the side of the fixed plate, and its output shaft drives one of the rotating rollers to rotate via a commutator, thereby driving the conveyor belt to circulate; a partition is located above the fixed plate; an adjustment assembly is located above the conveyor belt to adjust the position or orientation of the TFT substrate; and a dust removal assembly is located above the machine body to suck up the dust generated during the cutting process; By integrating the conveying components into the machine body and using fixed plates and support plates to form a rigid support structure, the operational stability of the conveying system is improved; the conveying motor indirectly drives the rotating rollers through a commutator, which can adapt to spatial layout constraints and ensure smooth transmission; the partition effectively separates functional areas and reduces dust interference to the conveying mechanism; the overall structure is compact and easy to maintain, while providing basic support for the coordinated operation of subsequent adjustment components and dust removal components.

[0006] Two guide rails are fixed on the top of the machine body. A rack is fixed on the side of one of the guide rails. A movable seat is slidably mounted on both guide rails. A movable motor is installed inside one of the movable seats. A movable gear is fixed on the output shaft of the movable motor. The movable gear meshes with the rack. A dust cover is fixed on the top of the machine body. A feed port is opened on the dust cover.

[0007] With the above structure, two guide rails are fixed parallel to each other on the top of the machine body, forming a longitudinal guide rail; a rack is fixed along the length of one of the guide rails to the side; two movable seats are slidably mounted on the two guide rails respectively, forming a synchronous moving platform; one of the movable seats contains a moving motor, the output shaft of which is equipped with a moving gear, which meshes with the rack. When the moving motor is running, it drives the entire movable seat to move longitudinally along the guide rail through the moving gear and rack transmission; a dust cover is installed on the top of the machine body, forming a closed working space, and its front end is provided with a feed port for TFT substrates to enter; The dual-rail support for the moving base improves the guiding accuracy and load-bearing capacity of longitudinal movement; the moving gear and rack transmission method has high transmission efficiency and positioning repeatability, and is suitable for long-stroke linear motion; the dust cover isolates the cutting area from the external environment, and together with the feed port, it enables automatic material feeding and unloading while maintaining internal cleanliness, reducing the impact of external dust intrusion on the processing quality of TFT substrates.

[0008] A lateral moving device is installed above the two movable seats, a lifting electric push rod is fixed above the lateral moving device, and a cutting blade wheel is installed below the lifting electric push rod.

[0009] With the above structure, the lateral moving device is installed on the top of the two moving seats to form a lateral X-axis motion platform; the lifting electric push rod is slidably mounted on the lateral moving device and can move laterally under its drive; the telescopic end of the lifting electric push rod is connected downward to the cutting blade wheel, and the vertical position of the cutting blade wheel is controlled by the extension and retraction of the push rod to realize the contact cutting or lifting action of the TFT substrate. The cutting wheel is precisely positioned in three-dimensional space through a three-stage motion structure consisting of a longitudinal moving seat, a lateral moving device, and a lifting electric push rod. The lifting electric push rod provides controllable vertical pressure to ensure consistent cutting depth. This structure avoids the pressure fluctuation problem of traditional cylinder-driven systems, thus improving cutting accuracy and repeatability.

[0010] The adjustment assembly includes a mounting frame, with several fixing brackets 1 fixed below the mounting frame. The fixing brackets 1 are all positioned above the conveyor belt. Fixing brackets 2 are fixed inside the mounting frame. A rotating cylinder is rotatably mounted above the fixing brackets 2. A ring gear is fixed on the rotating cylinder. A mounting box is fixed to the side of the mounting frame.

[0011] Using the above structure, the mounting frame serves as the mounting base for the adjustment assembly, supporting components such as the first fixing frame, the second fixing frame, and the rotating cylinder, ensuring coordinated operation of all components. The mounting frame is connected to the machine body or conveying assembly via a fixed structure, ensuring a secure installation of the adjustment assembly and preventing shaking during adjustment. Several first fixing frames below the mounting frame are evenly distributed above the conveyor belt, with a suitable gap between the bottom of the first fixing frame and the surface of the conveyor belt. This not only does not affect the operation of the conveyor belt but also provides auxiliary positioning for the TFT substrate on the conveyor belt, further preventing the substrate from shifting during conveying and adjustment. The second fixing frame inside the mounting frame supports the rotating cylinder, which is rotatably positioned above the second fixing frame and can rotate freely around its own axis. The ring gear fixed on the rotating cylinder cooperates with the subsequent transmission mechanism to provide power transmission for the rotation of the rotating cylinder. The mounting box on the side of the mounting frame is used to install the rotary motor, drive gear, and other transmission components, protecting them from dust and debris adhering to them, preventing jamming and wear, and ensuring stable operation of the transmission mechanism. The mounting frame provides a stable mounting platform for all components of the adjustment assembly, ensuring that each component is firmly installed and operates in tandem. This prevents a decrease in adjustment accuracy due to component loosening during the adjustment process, thus guaranteeing precise adjustment of the TFT substrate. Several fixing brackets are evenly distributed above the conveyor belt, providing auxiliary positioning for the TFT substrate. They cooperate with the partitions in the first section to further enhance the stability of the substrate during transport and adjustment, preventing substrate misalignment and ensuring that the substrate can be accurately aligned with the rotating cylinder and subsequent cutting wheel, improving cutting accuracy. The rotating cylinder is positioned above the fixing bracket, allowing for smooth rotation, reducing friction during rotation, minimizing component wear, and extending the service life of the adjustment assembly. The ring gear provides a stable power transmission structure for the rotation of the rotating cylinder, ensuring that the rotating cylinder can rotate smoothly and accurately.

[0012] A rotary motor is fixed at the bottom of the mounting box. The output shaft of the rotary motor extends through into the interior of the mounting box. A drive gear is fixed on the output shaft of the rotary motor. A chain is installed on the drive gear and the ring gear. A placement plate is fixed on the top of the rotating cylinder.

[0013] With the above structure, the rotary motor is fixed below the mounting box as the power source for the adjustment component. Its output shaft extends through the mounting box and is fixedly connected to the drive gear inside the mounting box, driving the drive gear to rotate synchronously. The drive gear is connected to the ring gear on the rotating cylinder through a chain, forming a chain drive structure. When the drive gear rotates, it transmits power to the ring gear through the chain, driving the ring gear and the rotating cylinder to rotate synchronously. The rotation direction is the same as the rotation direction of the drive gear, and the rotation speed can be adjusted by the speed of the rotary motor. The placement plate above the rotating cylinder is used to place the TFT substrate. When the TFT substrate is placed on the placement plate, the placement plate rotates together with the rotating cylinder, driving the TFT substrate to rotate synchronously. The angle of the TFT substrate is adjusted so that the cutting path of the substrate is precisely aligned with the cutting trajectory of the cutting wheel, ensuring cutting accuracy. The chain drive structure can achieve smooth power transmission and precise transmission ratio, ensuring that the rotation angle of the rotating cylinder is precisely controllable, thereby achieving precise adjustment of the TFT substrate angle to meet the needs of different cutting angles. The rotary motor provides stable power to the adjustment components, with controllable output speed, enabling precise adjustment of the rotation speed and angle of the rotating cylinder. This allows for accurate adjustment of the TFT substrate angle, adapting to different cutting angle requirements and improving the equipment's cutting flexibility and precision. The chain drive structure, composed of a drive gear, chain, and ring gear, offers high transmission efficiency and precise transmission ratio, ensuring smooth power transmission and preventing slippage or jamming during power transmission. This ensures smooth rotation and precise angle adjustment of the rotating cylinder, guaranteeing accurate TFT substrate angle adjustment. The placement plate rotates synchronously with the rotating cylinder, driving the TFT substrate to rotate smoothly. During adjustment, the substrate will not slip or shift, ensuring precise substrate angle adjustment and accurate alignment of the substrate cutting path with the cutting wheel. This reduces cutting defects caused by angle deviations and improves product yield. The rotary motor is installed below the mounting box, working in conjunction with the drive gear, chain, and other transmission components. The compact structure occupies little space and does not affect the operation of other equipment components. Furthermore, the chain drive structure is easy to maintain, facilitating disassembly, cleaning, and replacement, reducing equipment maintenance costs.

[0014] The dust removal assembly includes a base plate, on which an exhaust fan and an exhaust motor are fixed. The output shaft of the exhaust motor is connected to the rotating shaft of the exhaust fan via a pulley pair. A connecting pipe is connected to the side of the exhaust fan, and a fixing pipe is connected to the end of the connecting pipe.

[0015] With the above structure, the base plate is fixed to the side of the machine body or dust cover, and the exhaust fan and exhaust motor are both fixed above the base plate. The exhaust motor serves as the power source, with a drive pulley installed on the output shaft of the exhaust motor and a driven pulley installed on the rotating shaft of the exhaust fan. The pulley pair connects the two pulleys. After the exhaust motor is powered on, it drives the rotating shaft of the exhaust fan to rotate at high speed through the pulley pair. The impeller inside the exhaust fan rotates with the rotating shaft, generating negative pressure at the air inlet of the exhaust fan. One end of the connecting pipe is connected to the side air inlet of the exhaust fan, and the other end of the connecting pipe is connected to the fixed pipe. The fixed pipe is connected to the air inlet of the exhaust fan through the connecting pipe. When the exhaust fan is working, the gas enters the exhaust fan from the fixed pipe through the connecting pipe and the air inlet of the exhaust fan in sequence, forming a continuous exhaust airflow. The exhaust motor and exhaust fan are connected via a pulley pair. The belt drive slips under overload conditions, protecting the internal impeller of the exhaust fan from damage. The pulley pair allows for some offset in the installation positions of the exhaust motor and exhaust fan, reducing the requirements for the flatness of the base plate. The connecting pipe uses flexible or bendable tubing, allowing for positional adjustments between the fixed pipe and the exhaust fan, facilitating installation and maintenance. The exhaust fan, exhaust motor, and base plate form an independent module, installed as a whole on the side of the unit, without occupying internal space of the dust cover. The exhaust fan's air inlet is connected to the fixed pipe via a connecting pipe, enabling long-distance placement of the negative pressure source and the extraction point. Simultaneously, the indirect connection between the exhaust motor and exhaust fan via the pulley pair buffers vibration, reduces noise, and allows for a certain installation error. The connecting pipe and fixed pipe form an air duct, reducing airflow leakage and improving suction efficiency. The overall layout is compact, facilitating integration into the top space of the dust cover.

[0016] Two filter boxes are detachably installed on the fixed pipe. A mounting bracket is fixed to the bottom of the fixed pipe and fixed to the dust cover. An exhaust hose is connected to the end of the fixed pipe and the end of the exhaust hose is fixed to the side of the cutting wheel. A filter cartridge is connected to the exhaust port of the exhaust fan and an exhaust pipe is fixed above the filter cartridge.

[0017] Using the above structure, under the negative pressure generated by the exhaust fan, the dust generated during the cutting process is sucked into the fixed pipe through the exhaust hose, and then enters the filter box. The two detachable filter boxes perform preliminary filtration of the dust, intercepting particulate dust. The air after preliminary filtration by the filter box continues to enter the filter cartridge through the exhaust fan. The filter cartridge filters the exhaust gas in the air and absorbs the processing exhaust gas. Finally, the clean air is discharged through the exhaust pipe. The mounting bracket is used to fix the fixed pipe to the dust cover to ensure the stability of the fixed pipe. The filter box is detachable, which is convenient for regular cleaning and replacement to ensure the dust removal effect. The dual filtration design of the filter box and filter cartridge effectively removes dust generated during the cutting process, ensuring a clean working environment. The exhaust hose is connected to the side of the cutting wheel, allowing for close-range dust extraction and improving dust removal efficiency. The filter box features a detachable design for easy regular cleaning or replacement, maintaining dust removal efficiency. The exhaust hose is flexible and can bend freely with the three-dimensional movement of the cutting wheel, ensuring it remains close to the dust source and improving collection efficiency. The filter cartridge performs secondary filtration of the exhaust gas to prevent the leakage of fine dust, meeting environmental emission requirements. The overall dust removal path is "source suction, coarse filtration, fine filtration, and discharge," forming a closed-loop dust prevention system that effectively protects the cleanliness of the TFT substrate surface and the health of operators.

[0018] Compared with the prior art, the beneficial effects of the present invention are: By integrating conveying, angle adjustment, three-dimensional precise positioning and cutting, and closed-loop dust removal systems, the entire process of TFT substrate processing is automated. Rigid support structure and partition isolation ensure stable conveying, chain drive ensures precise angle adjustment, three-stage electric motion mechanism improves cutting repeatability, and near-source suction combined with dual filtration effectively controls dust, maintains internal cleanliness, and meets the requirements of high-precision cutting and environmentally friendly emissions. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front view structural diagram of the present invention; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a schematic diagram of the front three-dimensional structure of some components in this invention; Figure 5 This is a schematic diagram of the rear three-dimensional structure of some components in this invention; Figure 6 This is a schematic diagram of the upper three-dimensional structure of the conveying component in this invention; Figure 7 This is a schematic diagram of the lower three-dimensional structure of the conveying component in this invention; Figure 8 This is a schematic diagram of the upper three-dimensional structure of the adjustment component in this invention; Figure 9 This is a schematic diagram of the lower three-dimensional structure of the adjustment component in this invention; Figure 10 This is a schematic cross-sectional view of the adjustment component in this invention; Figure 11 This is a three-dimensional structural diagram of the dust removal component in this invention.

[0020] In the diagram: 1. Dust cover; 2. Machine body; 3. Exhaust fan; 4. Partition plate; 5. Conveyor belt; 6. Feed inlet; 7. Filter box; 8. Support leg; 9. Cutting wheel; 10. Exhaust hose; 11. Moving seat; 12. Lateral movement device; 13. Lifting electric push rod; 14. Rack; 15. Guide rail; 16. Placement plate; 17. Conveyor motor; 18. Fixing plate; 19. Mounting frame; 20. Fixing frame one; 21. Mounting box; 22. Exhaust pipe; 23. Rotary motor; 24. Fixing frame two; 25. Rotating cylinder; 26. Chain; 27. Ring gear; 28. Drive gear; 29. ​​Mounting frame; 30. Connecting pipe; 31. Exhaust motor; 32. Pulley pair; 33. Filter cartridge; 34. Fixing pipe. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figure 1-11 As shown, the present invention provides a technical solution: a closed dustproof precision TFT cutting machine, including a machine body 2, a plurality of support legs 8 fixed at the bottom of the machine body 2, a conveying assembly arranged above the machine body 2, the conveying assembly including a plurality of fixed plates 18, all of which are fixed inside the machine body 2, a support plate arranged between the plurality of fixed plates 18, two rotating rollers arranged on the plurality of fixed plates 18, a conveyor belt 5 arranged on the two rotating rollers, a partition plate 4 fixed above the fixed plate 18, a conveyor motor 17 fixed on the side of the fixed plate 18, the output shaft of the conveyor motor 17 being connected to one of the rotating rollers through a commutator, an adjustment assembly arranged above the conveyor belt 5, and a dust removal assembly arranged above the machine body 2.

[0023] The machine body 2 serves as the supporting structure for the entire machine, and its bottom is stably placed by several support legs 8. The conveying assembly is installed inside the machine body 2, and is composed of several fixed plates 18 fixed to the machine body 2 to form a frame. Support plates are provided between the fixed plates 18 to enhance the structural rigidity. Two rotating rollers are mounted in parallel on the fixed plates 18, and the conveyor belt 5 is fitted around their outer periphery to form a continuous conveying surface. The conveying motor 17 is installed on the side of the fixed plate 18, and its output shaft drives one of the rotating rollers to rotate via a commutator, thereby driving the conveyor belt 5 to circulate. The partition plate 4 is located above the fixed plate 18. The adjustment assembly is located above the conveyor belt 5 and is used to adjust the position or orientation of the TFT substrate. The dust removal assembly is located above the machine body 2 and is used to suck up the dust generated during the cutting process. By integrating the conveying components into the body 2 and using a fixed plate 18 and a support plate to form a rigid support structure, the operational stability of the conveying system is improved. The conveying motor 17 indirectly drives the rotating roller through a commutator, which can adapt to spatial layout constraints and ensure smooth transmission. The partition 4 effectively separates functional areas and reduces dust interference to the conveying mechanism. The overall structure is compact and easy to maintain, while providing basic support for the coordinated operation of subsequent adjustment components and dust removal components.

[0024] Two guide rails 15 are fixed on the top of the machine body 2. A rack 14 is fixed to the side of one of the guide rails 15. A movable seat 11 is slidably mounted on both guide rails 15. A movable motor is installed inside one of the movable seats 11. A movable gear is fixed on the output shaft of the movable motor. The movable gear meshes with the rack 14. A dust cover 1 is fixed on the top of the machine body 2. The dust cover 1 has a feed port 6. The two guide rails 15 are fixed parallel to each other on the top of the machine body 2 to form a longitudinal guide rail. The rack 14 is fixed along the length of the side of one of the guide rails 15. The two movable seats 11 are slidably mounted on the two guide rails 15 to form a synchronous moving platform. A movable motor is installed inside one of the movable seats 11. The output shaft of the movable seat is equipped with a movable gear. The movable gear meshes with the rack 14. When the movable motor is running, the entire movable seat 11 is driven to move longitudinally along the guide rail 15 through the movable gear and the rack 14. The dust cover 1 is installed on the top of the machine body 2 to form a closed working space. The front end of the dust cover 1 has a feed port 6 for the TFT substrate to enter. The dual guide rails 15 support the moving base 11, which improves the guiding accuracy and load-bearing capacity of longitudinal movement; the moving gear and rack 14 transmission method has high transmission efficiency and positioning repeatability, and is suitable for long-stroke linear motion; the dust cover 1 isolates the cutting area from the external environment, and together with the feed port 6, it realizes automatic material feeding and discharge while maintaining internal cleanliness, reducing the impact of external dust intrusion on the processing quality of TFT substrate.

[0025] A transverse moving device 12 is provided above the two movable seats 11, a lifting electric push rod 13 is fixed above the transverse moving device 12, and a cutting blade wheel 9 is provided below the lifting electric push rod 13. The lateral moving device 12 is installed on the top of the two moving seats 11 to form a lateral X-axis motion platform; the lifting electric push rod 13 is slidably mounted on the lateral moving device 12 and can move laterally under its drive; the telescopic end of the lifting electric push rod 13 is connected downward to the cutting blade wheel 9, and the vertical position of the cutting blade wheel 9 is controlled by the extension and retraction of the push rod to realize the contact cutting or lifting action of the TFT substrate. The cutting wheel 9 is precisely positioned in three-dimensional space through a three-stage motion structure consisting of a longitudinal moving seat 11, a transverse moving device 12, and a lifting electric push rod 13. The lifting electric push rod 13 provides controllable vertical pressure to ensure consistent cutting depth. This structure avoids the pressure fluctuation problem of traditional cylinder-driven systems, thus improving cutting accuracy and repeatability.

[0026] The adjustment assembly includes a mounting frame 19, with several fixing brackets 20 fixed below the mounting frame 19. The fixing brackets 20 are all set above the conveyor belt 5. A fixing bracket 24 is fixed inside the mounting frame 19. A rotating cylinder 25 is rotatably arranged above the fixing bracket 24. A ring gear 27 is fixed on the rotating cylinder 25. A mounting box 21 is fixed on the side of the mounting frame 19. Mounting frame 19 serves as the mounting base for the adjustment assembly, supporting components such as fixing bracket 20, fixing bracket 24, and rotating cylinder 25, ensuring coordinated operation of all components. Mounting frame 19 is connected to the machine body 2 or the conveying assembly via a fixing structure, ensuring a secure installation of the adjustment assembly and preventing shaking during adjustment. Several fixing brackets 20 below mounting frame 19 are evenly distributed above the conveyor belt 5. The bottom of each fixing bracket 20 has a suitable gap with the surface of the conveyor belt 5, which neither affects the operation of the conveyor belt 5 nor hinders the movement of the TFT substrate on the conveyor belt 5, further preventing... To prevent the base plate from shifting during transport and adjustment, the fixing frame 24 inside the mounting frame 19 supports the rotating cylinder 25. The rotating cylinder 25 is rotatably mounted above the fixing frame 24 and can rotate freely around its own axis. The ring gear 27 fixed on the rotating cylinder 25 cooperates with the subsequent transmission mechanism to provide power transmission for the rotation of the rotating cylinder 25. The mounting box 21 on the side of the mounting frame 19 is used to install the rotating motor 23, the drive gear 28 and other transmission components, which protect the transmission components, prevent dust and debris from adhering to the transmission components, avoid jamming and wear of the transmission components, and ensure stable operation of the transmission mechanism. Mounting frame 19 provides a stable mounting carrier for each component of the adjustment assembly, ensuring that each component is firmly installed and operates in coordination, avoiding the decrease in adjustment accuracy caused by component loosening during the adjustment process, and providing a guarantee for the precise adjustment of the TFT substrate. Several fixing brackets 20 are evenly distributed above the conveyor belt 5, which play an auxiliary limiting role for the TFT substrate. They cooperate with the partition 4 in the first section to further improve the stability of the substrate during the conveying and adjustment process, prevent the substrate from shifting, and ensure that the substrate can be accurately aligned with the rotating cylinder 25 and the subsequent cutting wheel 9, thereby improving the cutting accuracy. The rotating cylinder 25 is rotatably mounted above the fixing bracket 24, which allows for smooth rotation, reduces friction during the rotation process, reduces component wear, and extends the service life of the adjustment assembly. The ring gear 27 provides a stable power transmission structure for the rotation of the rotating cylinder 25, ensuring that the rotating cylinder 25 can rotate smoothly and accurately.

[0027] A rotary motor 23 is fixed below the mounting box 21. The output shaft of the rotary motor 23 extends through the interior of the mounting box 21. A drive gear 28 is fixed on the output shaft of the rotary motor 23. A chain 26 is provided on the drive gear 28 and the ring gear 27. A placement plate 16 is fixed above the rotating cylinder 25. The rotary motor 23 is fixed below the mounting box 21 and serves as the power source for the adjustment component. Its output shaft extends through the interior of the mounting box 21 and is fixedly connected to the drive gear 28 inside the mounting box 21, driving the drive gear 28 to rotate synchronously. The drive gear 28 is connected to the ring gear 27 on the rotating cylinder 25 through the chain 26, forming a chain 26 transmission structure. When the drive gear 28 rotates, the power is transmitted to the ring gear 27 through the chain 26. 7. The ring gear 27 and the rotating cylinder 25 rotate synchronously, and the rotation direction is the same as the rotation direction of the drive gear 28. The rotation speed can be adjusted by the rotation speed of the rotary motor 23. The placement plate 16 above the rotating cylinder 25 is used to place the TFT substrate. When the TFT substrate is placed above the placement plate 16, the placement plate 16 rotates together with the rotating cylinder 25, driving the TFT substrate to rotate synchronously. The angle of the TFT substrate is adjusted so that the cutting path of the substrate is precisely aligned with the cutting trajectory of the cutting wheel 9, ensuring cutting accuracy. The chain 26 transmission structure can realize the smooth transmission of power and the transmission ratio is accurate, which can ensure that the rotation angle of the rotating cylinder 25 is precisely controllable, thereby realizing the precise adjustment of the angle of the TFT substrate and meeting the needs of different cutting angles. The rotary motor 23 provides stable power to the adjustment components, with controllable output speed, enabling precise adjustment of the rotation speed and angle of the rotating cylinder 25. This allows for accurate adjustment of the TFT substrate angle, adapting to different cutting angle requirements and improving the cutting flexibility and precision of the equipment. The chain 26 transmission structure, composed of the drive gear 28, chain 26, and ring gear 27, offers high transmission efficiency and precise transmission ratio, ensuring smooth power transmission and preventing slippage or jamming during power transmission. This ensures smooth rotation and precise angle adjustment of the rotating cylinder 25, thereby guaranteeing the accuracy of the TFT substrate angle adjustment. The placement plate 16 rotates synchronously with the rotating cylinder 25, driving the TFT substrate to rotate smoothly. During the adjustment process, the substrate will not slip or shift, ensuring accurate substrate angle adjustment. This allows the substrate cutting track to be precisely aligned with the cutting trajectory of the cutting wheel 9, reducing cutting defects caused by angle deviation and improving product yield. The rotary motor 23 is installed below the mounting box 21 and works in conjunction with the drive gear 28, chain 26, and other transmission components. The structure is compact, occupies little space, and does not affect the operation of other components of the equipment. At the same time, the chain 26 transmission structure is easy to maintain, disassemble, clean, and replace, reducing equipment maintenance costs.

[0028] The dust removal assembly includes a base plate, on which an exhaust fan 3 and an exhaust motor 31 are fixed. The output shaft of the exhaust motor 31 is connected to the rotating shaft of the exhaust fan 3 via a pulley pair 32. A connecting pipe 30 is connected to the side of the exhaust fan 3, and a fixing pipe 34 is connected to the end of the connecting pipe 30. The base plate is fixed to the side of the body 2 or dust cover 1. The exhaust fan 3 and the exhaust motor 31 are both fixed above the base plate. The exhaust motor 31 serves as the power source. A drive pulley is installed on the output shaft of the exhaust motor 31, and a driven pulley is installed on the rotating shaft of the exhaust fan 3. The pulley pair 32 connects the two pulleys. After the exhaust motor 31 is powered on, it drives the rotating shaft of the exhaust fan 3 to rotate at high speed through the pulley pair 32. The impeller inside the exhaust fan 3 rotates with the rotating shaft, generating negative pressure at the air inlet of the exhaust fan 3. One end of the connecting pipe 30 is connected to the side air inlet of the exhaust fan 3, and the other end of the connecting pipe 30 is connected to the fixed pipe 34. The fixed pipe 34 is connected to the air inlet of the exhaust fan 3 through the connecting pipe 30. When the exhaust fan 3 is working, the gas enters the exhaust fan 3 through the fixed pipe 34, the connecting pipe 30, and the air inlet of the exhaust fan 3 in sequence, forming a continuous exhaust airflow. The exhaust motor 31 and the exhaust fan 3 are connected via a pulley pair 32. The belt drive slips under overload conditions, protecting the impeller inside the exhaust fan 3 from damage. The pulley pair 32 allows for a certain degree of offset between the installation positions of the exhaust motor 31 and the exhaust fan 3, reducing the requirements for the flatness of the base plate. The connecting pipe 30 uses flexible or bendable tubing, allowing for positional adjustments between the fixed pipe 34 and the exhaust fan 3, facilitating installation and maintenance. The exhaust fan 3, exhaust motor 31, and base plate form an independent module, installed as a whole on the side of the body 2, without occupying the internal space of the dust cover 1. The air inlet of the exhaust fan 3 is connected to the fixed pipe 34 via the connecting pipe 30, enabling a long-distance arrangement of the negative pressure source and the extraction point. Simultaneously, the indirect connection between the exhaust motor 31 and the exhaust fan 3 via the pulley pair 32 buffers vibration, reduces noise, and allows for a certain installation error. The connecting pipe 30 and the fixed pipe 34 form an air duct, reducing airflow leakage and improving suction efficiency. The overall layout is compact and easy to integrate into the top space of the dust cover 1.

[0029] Two filter boxes 7 are detachably installed on the fixed pipe 34. A mounting bracket 29 is fixed at the bottom of the fixed pipe 34 and is fixed on the dust cover 1. An exhaust hose 10 is connected to the end of the fixed pipe 34 and the end of the exhaust hose 10 is fixed to the side of the cutting blade wheel 9. A filter cartridge 33 is connected to the air outlet of the exhaust fan 3 and an exhaust pipe 22 is fixed above the filter cartridge 33. Under the negative pressure generated by the exhaust fan 3, the dust generated during the cutting process is sucked into the fixed pipe 34 through the exhaust hose 10, and then enters the filter box 7. The two detachable filter boxes 7 perform preliminary filtration of the dust, intercepting particulate dust. The air after preliminary filtration by the filter box 7 continues to enter the filter cartridge 33 through the exhaust fan 3. The filter cartridge 33 performs further fine filtration of the air, absorbing the processing waste gas. Finally, the clean air is discharged through the exhaust pipe 22. The mounting bracket 29 is used to fix the fixed pipe 34 to the dust cover 1 to ensure the stability of the fixed pipe 34. The filter box 7 is detachable, which is convenient for regular cleaning and replacement to ensure the dust removal effect. The dual filtration design of filter box 7 and filter cartridge 33 effectively removes dust generated during the cutting process, ensuring a clean working environment. The exhaust hose 10 is connected to the side of the cutting wheel 9, allowing for close-range dust extraction and improving dust removal efficiency. The filter box 7 features a detachable design for easy regular cleaning or replacement, maintaining dust removal efficiency. The exhaust hose 10 is flexible and can bend freely with the three-dimensional movement of the cutting wheel 9, ensuring it remains close to the dust source and improving collection efficiency. The filter cartridge 33 performs secondary filtration on the exhaust gas to prevent the leakage of fine dust, meeting environmental emission requirements. The overall dust removal path is "source suction, coarse filtration, fine filtration, and discharge," forming a closed-loop dust prevention system that effectively protects the cleanliness of the TFT substrate surface and the health of operators.

[0030] Working principle: The machine body 2 serves as the overall support structure, with several feet 8 at the bottom for stable placement. The machine body 2 integrates a conveying assembly, consisting of a fixed plate 18, a support plate, rotating rollers, and a conveyor belt 5 forming a continuous conveying path. A conveyor motor 17 drives the rotating rollers via a commutator, causing the conveyor belt 5 to rotate and feed the TFT substrate into the processing area. An adjustment assembly is located above the conveyor belt 5, its core being a rotating cylinder 25 and a top placement plate 16. The rotating cylinder 25 is connected to a chain drive mechanism consisting of a rotating motor 23, a drive gear 28, and a chain 26 via a ring gear 27, rotating after the substrate is in place to precisely align the cutting angle. A longitudinal guide rail 15 and a rack 14 are located above the machine body 2. A movable seat 11 is slidably mounted on the guide rail 15 and is driven by a built-in moving motor to move the moving gear and rack. The longitudinal movement is achieved by the meshing of strip 14; a transverse movement device 12 is installed on the top of the moving seat 11, and a lifting electric push rod 13 is slidably set on it. The lower end of the push rod is connected to the cutting wheel 9, thus forming a three-stage motion system of longitudinal, transverse and lifting, so that the cutting wheel 9 can be accurately positioned in three-dimensional space and perform contact cutting; at the same time, the whole machine is equipped with a dust cover 1, leaving only the feed port 6 for material to enter and exit; the dust removal component is driven by the exhaust motor 31 through the pulley pair 32 to generate negative pressure, and draws dust from the side of the cutting wheel 9 through the connecting pipe 30, the fixed pipe 34 and the exhaust hose 10. The airflow passes through two detachable filter boxes 7 for coarse filtration, and then through the filter cartridge 33 for fine filtration before being discharged through the exhaust pipe 22, forming a closed-loop dust removal path of "source suction - coarse filtration - fine filtration - discharge"; By integrating four functional modules—conveying, adjusting, cutting, and dust removal—into a closed machine body 2, the entire process of TFT substrate feeding, positioning, angle adjustment, and precision cutting is automated. The conveying assembly adopts a combination structure of a rigid fixed plate 18 and a support plate, with partitions 4 isolating functional areas to ensure conveying stability and reduce dust interference. The adjusting assembly uses chain drive to drive the rotating cylinder 25 to rotate the placement plate 16, with a constant transmission ratio and accurate angle control to ensure that the substrate cutting path is aligned with the cutter wheel trajectory. A three-stage motion structure (longitudinal moving seat 11, transverse moving device 12, and lifting electric push rod 13) replaces the traditional pneumatic or single-axis structure, avoiding pressure fluctuations and increasing cutting depth. Consistency and repeatability of positioning accuracy; the dust cover 1 effectively isolates the external environment and maintains internal cleanliness; the dust removal system adopts a near-source suction design, with the exhaust hose 10 moving synchronously with the cutting wheel 9, always close to the dust generation point, combined with the dual filtration mechanism of the detachable filter box 7 and filter cartridge 33, efficiently intercepting dust of different particle sizes, preventing particulate matter from contaminating the substrate surface or escaping into the working environment; the exhaust motor 31 and the exhaust fan 3 are connected by a pulley pair 32, which has the advantages of buffering vibration, reducing noise and allowing for installation deviation; the overall structure is compact, the modules work together reliably, and it is easy to maintain, meeting the process requirements of high cleanliness and high precision cutting of TFT substrates, while also complying with environmental emission standards.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A closed-type dustproof precision TFT cutting machine, comprising a machine body (2), a plurality of support legs (8) fixed at the bottom of the machine body (2), and a conveying assembly disposed above the machine body (2), characterized in that: The conveying assembly includes several fixed plates (18), which are all fixed inside the machine body (2). A support plate is provided between the fixed plates (18). Two rotating rollers are provided on the fixed plates (18). A conveyor belt (5) is provided on the two rotating rollers. A partition plate (4) is fixed above the fixed plate (18). A conveyor motor (17) is fixed on the side of the fixed plate (18). The output shaft of the conveyor motor (17) is connected to one of the rotating rollers through a commutator. An adjustment assembly is provided above the conveyor belt (5). A dust removal assembly is provided above the machine body (2).

2. The enclosed dustproof precision TFT cutting machine according to claim 1, characterized in that: Two guide rails (15) are fixed on the top of the machine body (2). A rack (14) is fixed on the side of one of the guide rails (15). A movable seat (11) is slidably arranged on both guide rails (15). A movable motor is arranged inside one of the movable seats (11). A movable gear is fixed on the output shaft of the movable motor. The movable gear meshes with the rack (14). A dust cover (1) is fixed on the top of the machine body (2). A feed port (6) is opened on the dust cover (1).

3. The enclosed dustproof precision TFT cutting machine according to claim 2, characterized in that: A lateral moving device (12) is provided above the two movable seats (11), a lifting electric push rod (13) is fixed above the lateral moving device (12), and a cutting wheel (9) is provided below the lifting electric push rod (13).

4. The enclosed dustproof precision TFT cutting machine according to claim 3, characterized in that: The adjustment assembly includes a mounting frame (19), with several fixing brackets (20) fixed below the mounting frame (19). The fixing brackets (20) are all set above the conveyor belt (5). Fixing brackets (24) are fixed inside the mounting frame (19). A rotating cylinder (25) is rotatably set above the fixing brackets (24). A ring gear (27) is fixed on the rotating cylinder (25). A mounting box (21) is fixed on the side of the mounting frame (19).

5. A closed-type dustproof precision TFT cutting machine according to claim 4, characterized in that: A rotary motor (23) is fixed below the mounting box (21). The output shaft of the rotary motor (23) extends through into the interior of the mounting box (21). A drive gear (28) is fixed on the output shaft of the rotary motor (23). A chain (26) is provided on the drive gear (28) and the ring gear (27). A placement plate (16) is fixed above the rotating cylinder (25).

6. The enclosed dustproof precision TFT cutting machine according to claim 5, characterized in that: The dust removal assembly includes a base plate, on which an exhaust fan (3) and an exhaust motor (31) are fixed. The output shaft of the exhaust motor (31) is connected to the rotating shaft of the exhaust fan (3) via a pulley pair (32). A connecting pipe (30) is connected to the side of the exhaust fan (3), and a fixing pipe (34) is connected to the end of the connecting pipe (30).

7. A closed-type dustproof precision TFT cutting machine according to claim 6, characterized in that: Two filter boxes (7) are detachably installed on the fixed tube (34). A mounting bracket (29) is fixed below the fixed tube (34). The mounting bracket (29) is fixed on the dust cover (1). An exhaust hose (10) is connected to the end of the fixed tube (34). The end of the exhaust hose (10) is fixed to the side of the cutting wheel (9). A filter cartridge (33) is connected to the air outlet of the exhaust fan (3). An exhaust pipe (22) is fixed above the filter cartridge (33).

Images