Nmp cleaning machine for all generations of line size resin plate and its using method

Abstract

The application discloses a kind of NMP cleaning machine and its use method for each generation line size resin plate, and the cleaning machine includes NMP cleaning chamber, DIW cleaning chamber and feeding car, unloading car, when cleaning resin plate, it is carried and fixed by being loaded with the plate carrying clamp of each size generation line being set, so that the cleaning machine can be used for each generation line size resin plate cleaning, and guarantee cleaning effect in the cleaning process, no position deviation occurs, by transmission mechanism and first transmission device, second transmission device as power mechanism for conveying plate carrying clamp to NMP cleaning chamber and DIW cleaning chamber, resin plate is sequentially immersed in NMP cleaning chamber, DIW cleaning chamber, and is washed by being moved up and sprayed, air cutting drying, enhance surface cleaning effect, can guarantee that the plate surface of each size generation line plate material after cleaning maintains in high cleanliness, no water drop water stain state, the whole cleaning process equipment structure is compact, cleaning efficiency is high, cleaning effect is good, one multi-purpose, greatly save resin plate cleaning cost.

Description

Technical Field

[0001] This invention relates to the field of resin plate cleaning technology. More specifically, this invention relates to an NMP cleaning machine and its method of use, applicable to resin plates of various generations and line sizes. Background Technology

[0002] With the advancement of technology, the LCD panel industry is developing rapidly, and flexible printing technology is widely used. This technology utilizes flexible resin plates for printing. When these plates are used on the printing press, it's crucial to ensure both the cleanliness of the plate and the adhesion between the plate surface and the alignment solution. This typically requires aging and soaking the plates in NMP (N-methylpyrrolidone), a key component of the alignment solution. This involves pouring a large amount of NMP solvent into a square tank until the plate is completely covered. After multiple aging soaks, a large amount of foreign matter floats in the NMP solvent and cannot be filtered out. Continuing to use this solvent on the production line for the next plate's aging soak will affect the cleanliness and aging effect of that next plate. Normally, the aging soak is directly discharged as waste. However, NMP, as a major component of the alignment solution, has a high procurement cost. Direct discharge would result in low material utilization and property damage. Furthermore, NMP is a hazardous chemical, and manual handling involving contact with chemicals poses significant safety hazards. Meanwhile, conventional NMP cleaning machines are mostly designed for single-generation production lines. The resin plates are secured to the equipment with clamps at both ends, and the high-frequency ultrasonic vibration cleaning process ensures the cleaning effect and prevents positional shift of the plates. However, as a resin plate manufacturer supplying multi-generational production lines globally, it's impossible for us to equip each generation with a separate cleaning machine. Therefore, we need to design a universal NMP cleaning machine that can meet the pre-shipment cleaning needs of production lines of all sizes, applicable to the cleaning steps on the production line. Summary of the Invention

[0003] One object of the present invention is to solve at least the above-mentioned problems and to provide at least the advantages that will be described later.

[0004] Another objective of this invention is to provide an NMP cleaning machine and its usage method applicable to resin plates of various generations and line sizes, in order to solve the technical problem that existing NMP cleaning machines cannot be used for rapid online cleaning of resin plates of different generations and line sizes.

[0005] To achieve these objectives and other advantages according to the invention, in one aspect, the invention provides an NMP cleaning machine applicable to resin plates of various generation line sizes, comprising a loading trolley, an NMP cleaning chamber, a DIW cleaning chamber, and a unloading trolley sequentially connected along the production line direction. The NMP cleaning chamber and the DIW cleaning chamber are connected and have a loading port on the side of the NMP cleaning chamber facing the loading trolley, and a unloading port on the side of the DIW cleaning chamber facing the unloading trolley. The tops of the loading trolley and the unloading trolley are at the same height and are respectively provided with a transmission mechanism along the production line direction. The vertical positions of the transmission mechanisms correspond to the loading port and the unloading port. A plate transport clamp is provided on the transmission mechanism. The plate transport clamp has a groove for accommodating resin plates of various generation line sizes. A row of pressure rods is provided at the top of the groove for pressing down and fixing the resin plate in the groove. An NMP immersion chamber is provided at the bottom of the NMP cleaning chamber. The immersion tank has a first transmission device installed in the middle along the production line direction. An NMP spray device is installed in the NMP cleaning chamber for spray rinsing the resin plates. A first lifting device is also installed in the NMP cleaning chamber to move the first transmission device up and down, lowering or removing the plate clamp on the first transmission device into the NMP immersion tank. The DIW cleaning chamber has a DIW immersion tank at the bottom and a second transmission device installed in the middle along the production line direction. A DIW spray device is installed in the DIW cleaning chamber for spray rinsing the resin plates. A second lifting device is also installed in the DIW cleaning chamber to move the second transmission device up and down, lowering or removing the plate clamp on the second transmission device into the DIW immersion tank. Air cutting devices are installed in both the NMP and DIW cleaning chambers for drying the rinsed resin plates.

[0006] Preferably, lifting doors are provided at the feeding port, the unloading port, and the connection between the NMP cleaning chamber and the DIW cleaning chamber, and an exhaust gas outlet is provided at the top of the DIW cleaning chamber.

[0007] Preferably, the exhaust outlet is located at the top of the DIW cleaning chamber near the middle of one side, and the front and rear sides of the top of the DIW cleaning chamber are inclined upward toward the exhaust outlet.

[0008] Preferably, the plate clamp has symmetrically arranged slots on both sides of the groove perpendicular to the transmission direction. Each slot includes a pair of inner and outer vertical plates arranged in sequence parallel to the transmission direction and away from the center of the resin plate. The top of the inner and outer vertical plates is connected to a top plate, and their bottoms are fixedly connected to the plate clamp. One side of the inner vertical plate extends downwards towards the center and has a through-hole. The bottom of the through-hole extends upwards to form a locking hole. The width of the through-hole is greater than the outer diameter of the pressure rod, and the height of the locking hole is greater than the sum of the height of the largest resin plate and the outer diameter of the pressure rod.

[0009] Preferably, annular rings are axially spaced and connected on the outer periphery of the pressure rod to abut against the top surface of the resin plate.

[0010] Preferably, transparent viewing windows are provided on the left and right sides of the NMP cleaning chamber and the DIW cleaning chamber in the transmission direction.

[0011] Preferably, the loading trolley is detachably connected to the side of the NMP cleaning chamber away from the DIW cleaning chamber, and the unloading trolley is detachably connected to the side of the DIW cleaning chamber away from the NMP cleaning chamber.

[0012] Preferably, the first lifting device and the second lifting device each include a set of drive motors and multiple transmission wheels. The drive motors are fixed on the inner wall of the corresponding NMP cleaning chamber or DIW cleaning chamber. The multiple transmission wheels are connected to the inner wall of the corresponding NMP cleaning chamber or DIW cleaning chamber through bearings and are located above the drive motors. The output end of the drive motor is coaxially connected to a drive gear. The drive gear, multiple transmission wheels, and the ends of the first transmission device or the second transmission device are all wound around a meshing chain. The drive motor drives the drive gear to rotate, and under the action of the transmission wheels, the first transmission device or the second transmission device moves vertically.

[0013] Preferably, an ultrasonic device and a driving device are respectively provided in the NMP cleaning chamber and the DIW cleaning chamber. The driving device drives the ultrasonic device to rise or fall, so that the ultrasonic device enters or leaves the corresponding NMP immersion tank or DIW immersion tank.

[0014] On the other hand, the present invention also provides a method of using an NMP cleaning machine applicable to resin plates of various generations and line sizes, comprising the following steps: S1. When NMP cleaning is required for the generation line plates of various sizes, first place the resin plate flat into the groove and fix the resin plate surface by the pressure bar. S2. Open the lifting door of the loading port, place the plate carrier on the transmission mechanism of the loading trolley, and transport the plate carrier to the NMP cleaning chamber through the transmission mechanism. The plate carrier is transferred to the first transmission device. Close the lifting doors on both sides of the NMP cleaning chamber, and move the first transmission device down through the first lifting device to make the plate carrier sink into the NMP immersion tank for full-coverage immersion of the resin plate. S3. The first transmission device is moved up to the height before the downward movement by the first lifting device, and the resin plate is sprayed and rinsed by the NMP spray device. Then, the surface of the resin plate is blown and dried by the air knife by the air cutting device in the room. S4. Open the lifting door between the NMP cleaning chamber and the DIW cleaning chamber, start the first transmission device to transfer the plate clamp to the second transmission device inside the DIW cleaning chamber, and close the lifting doors on both sides of the DIW cleaning chamber. S5. The second transmission device is lowered by the second lifting device, so that the plate clamp sinks into the DIW soaking tank to fully cover the resin plate for soaking. The second transmission device is raised to the height before being lowered by the second lifting device. The resin plate is sprayed and rinsed by the DIW spray device. Then, the surface of the resin plate is blown and dried by the air knife by the air cutting device in the room. S6. Open the lifting door of the discharge port, and transmit the plate clamp to the transmission mechanism of the discharge car through the second transmission device to complete the entire cleaning process.

[0015] This invention provides at least the following beneficial effects: The NMP cleaning machine and its method of use, applicable to resin plates of various generation line sizes, comprises an NMP cleaning chamber, a DIW cleaning chamber, a loading trolley, and an unloading trolley. During resin plate cleaning, a plate carrier clamp capable of accommodating various generation line sizes is used for support and fixation. This allows the cleaning machine to be used for cleaning resin plates of various generation line sizes while ensuring cleaning effectiveness and preventing positional shifts during the cleaning process. The plate carrier clamp is sequentially transported to the NMP cleaning chamber and the DIW cleaning chamber by a transmission mechanism and a first and second transmission device. Within the NMP cleaning chamber, a first lifting mechanism... The device is submerged in an NMP immersion tank for aging immersion treatment, then rinsed by an NMP spray device, and dried by an air-cutting device. In the DIW cleaning chamber, it is submerged in a DIW immersion tank via a first lifting device for aging immersion treatment, then rinsed by a DIW spray device to enhance surface cleaning, and finally dried by an air-cutting device. This ensures that the surface of printing plates of all sizes and generations remains highly clean and free of water droplets after cleaning. The entire cleaning process features a compact equipment structure, high cleaning efficiency, and excellent cleaning effect. It is multi-functional and significantly reduces the cost of resin plate cleaning.

[0016] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0017] Figure 1This is a perspective view of the NMP cleaning machine of the present invention, applicable to resin plates of various generation line sizes. Figure 2 This is a front view of the internal structure of the NMP cleaning machine for resin plates of various generation sizes, as described in this invention. Figure 3 This is a schematic diagram of the structure of a card slot component according to an embodiment of the present invention; Instruction manual drawing reference numerals: 1. Loading trolley, 2. NMP cleaning chamber, 3. DIW cleaning chamber, 4. Unloading trolley, 5. Transmission mechanism, 6. Loading port, 7. Plate clamp, 8. Groove, 9. Pressure bar, 10. Resin plate, 11. NMP immersion tank, 12. First transmission device, 13. NMP spray device, 14. First lifting device, 15. DIW immersion tank, 16. Second transmission device, 17. DIW spray device, 18. Second lifting device, 19. Air cutter device, 20. Exhaust gas outlet, 21. Slot, 22. Inner vertical plate, 23. Outer vertical plate, 24. Top plate, 25. Mounting channel, 26. Clip hole, 27. Annular ring, 28. Transparent window, 29. Ultrasonic device. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0019] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are all conventional methods, and the reagents and materials described are all commercially available unless otherwise specified. In the description of this invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] like Figure 1-3As shown, this invention provides an NMP cleaning machine applicable to resin plates of various generation line sizes, comprising a loading trolley 1, an NMP cleaning chamber 2, a DIW cleaning chamber 3, and a unloading trolley 4 sequentially connected along the production line direction. The NMP cleaning chamber 2 and the DIW cleaning chamber 3 are connected and configured with a loading port 6 on the side of the NMP cleaning chamber 2 facing the loading trolley 1, and a unloading port on the side of the DIW cleaning chamber 3 facing the unloading trolley 4. The tops of the loading trolley 1 and the unloading trolley 4 are at the same height and are respectively provided with a transmission mechanism 5 along the production line direction. The vertical position of the transmission mechanism 5 corresponds to the loading port 6 and the unloading port. A plate clamp 7 is provided on the transmission mechanism 5. The plate clamp 7 has a groove 8 for accommodating resin plates 10 of various generation line sizes. A row of pressure rods 9 is provided on the top of the groove 8. The pressure rods 9 are used to press down and fix the resin plates 10 in the groove 8. An NMP immersion tank 11 is provided at the bottom of the NMP cleaning chamber 2, and a first NMP immersion tank 11 is provided in the middle along the production line direction. The transmission device 12 and the NMP cleaning chamber 2 are equipped with an NMP spray device 13 for spray rinsing the resin plate 10. The NMP cleaning chamber 2 is also equipped with a first lifting device 14 for operating the first transmission device 12 to move up and down, so as to lower the plate clamp 7 on the first transmission device 12 into the NMP immersion tank 11 or remove it. The bottom of the DIW cleaning chamber 3 is equipped with a DIW immersion tank 15, and the middle is equipped with a second transmission device 16 along the production line direction. The DIW cleaning chamber 3 is equipped with a DIW spray device 17 for spray rinsing the resin plate 10. The DIW cleaning chamber 3 is also equipped with a second lifting device 18 for operating the second transmission device 16 to move up and down, so as to lower the plate clamp 7 on the second transmission device 16 into the DIW immersion tank 15 or remove it. The NMP cleaning chamber 2 and the DIW cleaning chamber 3 are respectively equipped with air cutting devices 19 for drying the rinsed resin plate 10.

[0021] The plate carrier 7 can carry and fix resin plates of various sizes. When NMP cleaning is required, the plates are first placed flat in the groove 8. The groove 8 is designed with the largest size of the plate to be cleaned. The resin plate 10 is fixed by the built-in pressure bar 9 to prevent floating and displacement. The entire NMP cleaning machine's transmission system includes the transmission mechanism 5 on the loading cart 1, the first transmission device 12 of the NMP cleaning chamber 2, the second transmission device 16 of the DIW cleaning chamber 3, and the transmission mechanism 5 on the unloading cart 4. The plate carrier 7 carrying the resin plate 10 is transported in sequence. After the resin plate 10 enters the NMP cleaning chamber 2, the resin plate 10 is transported by the transmission mechanism 5 to the first transmission device. On 12, a space is left between the first transmission device 12 and the transmission mechanism 5 of the loading trolley 1 to close the loading port 6. After the resin plate 10 is completely inside the NMP cleaning chamber 2, the conveying movement stops, and the opening and closing doors (including the loading port 6) on both sides of the NMP cleaning chamber 2 before and after the transport path are closed. The first lifting device 14 directly drives the first transmission device 12 to move up and down. When the first transmission device 12 moves, it drives the plate carrier 7 to move synchronously. First, the first lifting device 14 moves the first transmission device 12 down, so that the plate carrier 7 sinks together and is immersed below the liquid surface of the NMP immersion tank 11 to achieve full coverage immersion. After immersion is completed, the first transmission device 12 and the plate carrier 7 are lifted by the first lifting device 14 to the lower part. Before immersion, the initial height position is equivalent to returning to the initial height position upon entering the NMP cleaning chamber 2. The NMP spray device 13 is activated to spray and rinse the resin plate 10. After cleaning, the plate is blown and dried by the air knife device 19 to ensure that the surface of the plates of all sizes and generations remains in a state of high cleanliness and free of water droplets and stains. After NMP cleaning is completed, the NMP cleaning chamber 2 is opened, and the first transmission device 12 is activated to transfer the plate transport clamp 7 to the second transmission device 16. Similarly, the opening and closing doors (including the unloading port) on both sides of the DIW cleaning chamber 3 before and after the transport path are closed, and the second lifting device 18 is activated to drive the first transmission device 12 and the plate transport clamp 7 to move down and immerse them in the DIW immersion tank. The resin plate 10 is immersed in pure water below the liquid surface of the body 15. Then, the second lifting device 18 lifts the second transmission device 16 and the plate clamp 7 to the position before sinking, and returns to the initial height position. The DIW spray device 17 is then activated to spray pure water onto the surface of the resin plate 10. The liquid sprayed onto the surface of the resin plate 10 is also blown and dried by the air cutter device 19. Finally, it is conveyed out from the discharge port to complete the cleaning of the resin plate 10. This not only solves the problem of low solvent utilization in existing NMP immersion devices, but also solves the problem that one cleaning device cannot be used for cleaning resin plates 10 of various generation line sizes. It also improves the cleaning efficiency and cleaning effect of the resin plate 10 compared with conventional immersion and cleaning equipment processes.

[0022] In another technical solution, such as Figure 1-2As shown, lifting doors are respectively installed at the loading port 6, the unloading port, and the connection between the NMP cleaning chamber 2 and the DIW cleaning chamber 3. An exhaust vent 20 is provided at the top of the DIW cleaning chamber 3. The electrically controlled lifting doors facilitate the control and closure of the corresponding NMP cleaning chamber 2 or DIW cleaning chamber 3. After NMP cleaning is completed, the lifting door on the front side of the transport direction will open, allowing the conveyor plate clamp 7 and exhaust gas to enter the DIW cleaning chamber 3, where some of the gas dissolves in pure water. The final chemical solvent exhaust gas is centrally discharged through the exhaust vent 20 of the DIW cleaning chamber 3, ensuring environmental safety within the area.

[0023] In another technical solution, such as Figure 1-2 As shown, the exhaust port 20 is located at the top of the DIW cleaning chamber 3 near the middle of one side. The front and rear sides of the top of the DIW cleaning chamber 3 are inclined upwards toward the exhaust port 20 to guide the internal airflow and discharge it in a concentrated manner.

[0024] In another technical solution, such as Figure 1-3 As shown, the plate clamp 7 has symmetrically arranged slots 21 on both sides of the groove 8 perpendicular to the transmission direction. Each slot includes a pair of inner vertical plates 22 and outer vertical plates 23 arranged in sequence along the transmission direction away from the center of the resin plate 10. The tops of the inner vertical plates 22 and outer vertical plates 23 are connected to a top plate 24, and their bottoms are fixedly connected to the plate clamp 7. One side of the inner vertical plate 22 extends downwards towards the center and has a through-hole 25. The bottom of the through-hole 25 extends upwards to form a locking hole 26. The width of the through-hole 25 is greater than the outer diameter of the pressure rod 9, and the height of the locking hole 26 is greater than the sum of the height of the largest resin plate 10 and the outer diameter of the pressure rod 9.

[0025] The outer vertical plate 23 and the top plate 24 serve as fixed connection structures with the inner vertical plate 22. On the pair of opposing inner vertical plates 22, mounting channels 25 and locking holes 26 are symmetrically opened. The pressure rod 9 slides down into the locking hole 26 from the entrance of the mounting channel 25. The vertical position of the pressure rod 9 in the locking hole 26 is adjusted according to the size and thickness of the resin plate 10. It is limited by the top of the locking hole 26. As needed, a downward limiting structure for the pressure rod 9, such as a locking block, can be set in the locking hole 26. In another technical solution, such as Figure 3 As shown, annular rings 27 are axially spaced and connected on the outer periphery of the pressure rod 9 to abut against the top surface of the resin plate 10 to avoid scratching the surface of the resin plate 10. In another technical solution, such as Figure 1 As shown, transparent viewing windows 28 are respectively provided on the left and right sides of the NMP cleaning chamber 2 and the DIW cleaning chamber 3 in the transmission direction, so that technicians can observe the inside of the cleaning chamber.

[0026] In another technical solution, such as Figure 1-2 As shown, the loading cart 1 is detachably connected to the side of the NMP cleaning chamber 2 away from the DIW cleaning chamber 3, and the unloading cart 4 is detachably connected to the side of the DIW cleaning chamber 3 away from the NMP cleaning chamber 2. The loading port 6 and the unloading port are interchangeable, and the detachable connection allows for free combination of the loading cart 1 and the unloading cart 4. The loading cart 1 and the unloading cart 4 can be configured with the same structure, reducing the overall space occupied by the cleaning machine.

[0027] In another technical solution, such as Figure 2 As shown, the first lifting device 14 and the second lifting device 18 each include a set of drive motors and multiple transmission wheels. The drive motors are fixed on the inner wall of the corresponding NMP cleaning chamber 2 or DIW cleaning chamber 3. The multiple transmission wheels are connected to the inner wall of the corresponding NMP cleaning chamber 2 or DIW cleaning chamber 3 through bearings and are located above the drive motors. The output end of the drive motor is coaxially connected to a drive gear. The drive gear, multiple transmission wheels and the end of the first transmission device 12 or the second transmission device 16 in the same set are all wound with a meshing chain. The drive motor drives the drive gear to rotate, and under the action of the transmission wheels, the first transmission device 12 or the second transmission device 16 is moved vertically.

[0028] In the NMP cleaning chamber 2 and DIW cleaning chamber 3, in addition to the drive motor, a reversing mechanism, coupling, lifting shaft, etc., are also installed for the power steering and power balancing of the plate clamp 7 in the corresponding NMP or DIW cleaning chamber 3. The forward rotation of the drive motor lifts the plate clamp 7, and the reverse rotation moves the plate clamp 7 downward. Under the control of the meshing chain and the drive motor, rotating the same number of times keeps the moving position of the plate clamp 7 equal. The entire drive system, including the first transmission device 12, the second transmission device 16, the first lifting device 14, and the second lifting device 18, mainly plays a transmission role. The existing technology of various related structural products is already very mature, and will not be described in detail here. In another technical solution, such as Figure 2 As shown, an ultrasonic device 29 and a driving device are respectively installed in the NMP cleaning chamber 2 and the DIW cleaning chamber 3. The driving device drives the ultrasonic device 29 to rise or fall, so that the ultrasonic device 29 enters or leaves the corresponding NMP soaking tank 11 or DIW soaking tank 15.

[0029] Both the NMP immersion tank 11 and the DIW immersion tank 15 are equipped with ultrasonic vibrating plate devices. The ultrasonic device 29 can be selectively moved by the drive device to turn on the ultrasonic function or adjust the ultrasonic power to improve the cleaning effect.

[0030] This invention also provides a method of using an NMP cleaning machine applicable to resin plates 10 of various generations and line sizes, combined with Figure 1-3 It includes the following steps: S1. When NMP cleaning is required for generation line plates of various sizes, the resin plate 10 is first placed flat into the groove 8, and the surface of the resin plate 10 is fixed by the pressure rod 9 to press and fix the resin plate 10 to be cleaned.

[0031] S2. Open the lifting door of the loading port 6, place the plate carrier 7 on the transmission mechanism 5 of the loading cart 1, and transport the plate carrier 7 to the NMP cleaning chamber 2 through the transmission mechanism 5. The plate carrier 7 is then transferred to the first transmission device 12. Close the lifting doors on both sides of the NMP cleaning chamber 2, and lower the first transmission device 12 through the first lifting device 14, causing the plate carrier 7 to sink into the NMP immersion tank 11 for full-coverage immersion of the resin plate 10. The transmission mechanism 5 can generally be selected as a roller drive. If an ultrasonic device 29 is provided, it will sink until the NMP solvent surface covers the ultrasonic vibrating plate. The corresponding ultrasonic immersion cleaning time is set according to the size of the plate.

[0032] S3. The first transmission device 12 is moved up to the height before being moved down by the first lifting device 14, which is generally the middle layer position of the chamber. The resin plate 10 is sprayed and rinsed by the NMP spray device 13 to enhance the surface cleaning effect. Then, the surface of the resin plate 10 is blown and dried by the air knife of the air knife device 19 in the chamber.

[0033] S4. Open the lifting door between the NMP cleaning chamber 2 and the DIW cleaning chamber 3, start the first transmission device 12 to transmit the plate clamp 7 to the second transmission device 16 in the DIW cleaning chamber 3, and close the lifting doors on both sides of the DIW cleaning chamber 3.

[0034] S5. Similar to steps S2-S3, the second lifting device 18 lowers the second transmission device 16, causing the plate clamp 7 to sink into the DIW immersion tank 15 for full-coverage immersion of the resin plate 10. The second lifting device 18 then raises the second transmission device 16 to its previous height, and the DIW spray device 17 sprays and rinses the resin plate 10. Finally, the air-cutting device 19 in the room blows and dries the surface of the resin plate 10. A large amount of solvent droplets remain on the surface of the resin plate 10 after being cleaned with NMP and DIW liquids. The air-cutting device 19, equipped with a heated pump, blows for 30 minutes at an outlet air temperature of approximately 50°C, ensuring the surface of the cleaned resin plate 10 is clean and dry.

[0035] S6. Open the lifting door of the discharge port, and transmit the plate clamp 7 to the transmission mechanism 5 of the discharge car 4 through the second transmission device 16 to complete the entire cleaning process.

[0036] The present invention relates to an NMP cleaning machine and its method of use applicable to resin plates 10 of various generation line sizes. The main body of the cleaning machine includes an NMP cleaning chamber 2, a DIW cleaning chamber 3, a loading cart 1, and an unloading cart 4. During the cleaning of the resin plate 10, a plate carrier 7 capable of accommodating various generation line sizes is used for support and fixation. This allows the cleaning machine to be used for cleaning resin plates 10 of various generation line sizes while ensuring cleaning effectiveness and preventing positional shifts during the cleaning process. The plate carrier 7 is sequentially transported to the NMP cleaning chamber 2 and the DIW cleaning chamber 3 by a transmission mechanism 5, a first transmission device 12, and a second transmission device 16. Within the NMP cleaning chamber 2, the plate carrier 7 is lowered by a first lifting device 14. The NMP immersion tank 11 is used for aging immersion treatment, followed by spray rinsing with NMP spray device 13 and drying with air cutting device 19. Then, the plate is lowered into the DIW immersion tank 15 in the DIW cleaning chamber 3 by the first lifting device 14 for aging immersion treatment, followed by spray rinsing with DIW spray device 17 to enhance the surface cleaning effect, and drying with air cutting device 19. This process ensures that the surface of the plate of each generation of printing plates of various sizes remains in a state of high cleanliness and free of water droplets and stains after cleaning. The entire cleaning process has a compact equipment structure, high cleaning efficiency, good cleaning effect, and multiple uses, which greatly saves the cleaning cost of resin plate 10.

[0037] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. An NMP cleaning machine applicable to resin plates of various generation line sizes, characterized in that, The system includes a loading trolley, an NMP cleaning chamber, a DIW cleaning chamber, and a unloading trolley, sequentially connected along the production line direction. The NMP cleaning chamber and the DIW cleaning chamber are connected, with a loading port on the side of the NMP cleaning chamber facing the loading trolley and a unloading port on the side of the DIW cleaning chamber facing the unloading trolley. The tops of the loading and unloading trolleys are at the same height and are equipped with transmission mechanisms along the production line direction. The vertical positions of the transmission mechanisms correspond to the loading and unloading ports. The transmission mechanisms are equipped with plate clamps, which have grooves for accommodating resin plates of various generation line sizes. A row of pressure rods is located at the top of the grooves, used to press and fix the resin plates within the grooves. The bottom of the NMP cleaning chamber contains an NMP immersion tank, and the middle section along the production line direction contains a first transmission device. The washing chamber is equipped with an NMP spray system for spray rinsing the resin plates. The NMP washing chamber also includes a first lifting device for moving the first transmission device up and down to lower the plate clamp on the first transmission device into the NMP immersion tank or remove it. The DIW washing chamber has a DIW immersion tank at the bottom and a second transmission device in the middle along the production line direction. The DIW washing chamber is also equipped with a DIW spray system for spray rinsing the resin plates. The DIW washing chamber also includes a second lifting device for moving the second transmission device up and down to lower the plate clamp on the second transmission device into the DIW immersion tank or remove it. Both the NMP and DIW washing chambers are equipped with air-cutting devices for drying the rinsed resin plates.

2. The NMP cleaning machine for resin plates of all generation line sizes as described in claim 1, characterized in that, Lifting doors are respectively installed at the feeding port, the unloading port, and the connection between the NMP cleaning chamber and the DIW cleaning chamber. An exhaust gas outlet is provided at the top of the DIW cleaning chamber.

3. The NMP cleaning machine for resin plates of all generation line sizes as described in claim 2, characterized in that, The exhaust outlet is located at the top of the DIW cleaning chamber, near the middle of one side, and the front and rear sides of the top of the DIW cleaning chamber are inclined upward toward the exhaust outlet.

4. The NMP cleaning machine for resin plates of all generation line sizes as described in claim 1, characterized in that, The plate clamp has symmetrically arranged slots on both sides of the groove perpendicular to the transmission direction. Each slot includes an inner vertical plate and an outer vertical plate arranged in sequence away from the center of the resin plate, parallel to the transmission direction. The top of the inner vertical plate and the outer vertical plate are connected to a top plate, and their bottoms are fixedly connected to the plate clamp. One side of the inner vertical plate extends downwards towards the center and has a through-hole. The bottom of the through-hole extends upwards to form a locking hole. The width of the through-hole is greater than the outer diameter of the pressure rod, and the height of the locking hole is greater than the sum of the height of the largest resin plate and the outer diameter of the pressure rod.

5. The NMP cleaning machine for resin plates of all generation line sizes as described in claim 4, characterized in that, The outer periphery of the pressure rod is fitted with annular rings at axial intervals to abut against the top surface of the resin plate.

6. The NMP cleaning machine for resin plates of all generation line sizes as described in claim 1, characterized in that, Transparent viewing windows are provided on the left and right sides of the NMP cleaning chamber and the DIW cleaning chamber in the transmission direction, respectively.

7. The NMP cleaning machine for resin plates of all generation line sizes as described in claim 1, characterized in that, The loading trolley is detachably connected to the side of the NMP cleaning chamber away from the DIW cleaning chamber, and the unloading trolley is detachably connected to the side of the DIW cleaning chamber away from the NMP cleaning chamber.

8. The NMP cleaning machine for resin plates of all generation line sizes as described in claim 1, characterized in that, The first lifting device and the second lifting device each include a set of drive motors and multiple transmission wheels. The drive motors are fixed on the inner wall of the corresponding NMP cleaning chamber or DIW cleaning chamber. The multiple transmission wheels are connected to the inner wall of the corresponding NMP cleaning chamber or DIW cleaning chamber through bearings and are located above the drive motors. The output end of the drive motor is coaxially connected to a drive gear. The drive gear, multiple transmission wheels, and the ends of the first transmission device or the second transmission device are all wound around a meshing chain. The drive motor drives the drive gear to rotate, and under the action of the transmission wheels, the first transmission device or the second transmission device moves vertically.

9. The NMP cleaning machine as described in claim 1, applicable to resin plates of various generation line sizes, characterized in that, An ultrasonic device and a driving device are respectively installed in the NMP cleaning chamber and the DIW cleaning chamber. The driving device drives the ultrasonic device to rise or fall, so that the ultrasonic device enters or leaves the corresponding NMP immersion tank or DIW immersion tank.

10. The method of using the NMP cleaning machine for resin plates of all generations and line sizes as described in claim 2, characterized in that, Includes the following steps: S1. When NMP cleaning is required for the generation line plates of various sizes, first place the resin plate flat into the groove and fix the resin plate surface by the pressure bar. S2. Open the lifting door of the loading port, place the plate carrier on the transmission mechanism of the loading trolley, and transport the plate carrier to the NMP cleaning chamber through the transmission mechanism. The plate carrier is transferred to the first transmission device. Close the lifting doors on both sides of the NMP cleaning chamber, and move the first transmission device down through the first lifting device to make the plate carrier sink into the NMP immersion tank for full-coverage immersion of the resin plate. S3. The first transmission device is moved up to the height before the downward movement by the first lifting device, and the resin plate is sprayed and rinsed by the NMP spray device. Then, the surface of the resin plate is blown and dried by the air knife by the air cutting device in the room. S4. Open the lifting door between the NMP cleaning chamber and the DIW cleaning chamber, start the first transmission device to transfer the plate clamp to the second transmission device inside the DIW cleaning chamber, and close the lifting doors on both sides of the DIW cleaning chamber. S5. The second transmission device is lowered by the second lifting device, so that the plate clamp sinks into the DIW soaking tank to fully cover the resin plate for soaking. The second transmission device is raised to the height before being lowered by the second lifting device. The resin plate is sprayed and rinsed by the DIW spray device. Then, the surface of the resin plate is blown and dried by the air knife by the air cutting device in the room. S6. Open the lifting door of the discharge port, and transmit the plate clamp to the transmission mechanism of the discharge car through the second transmission device to complete the entire cleaning process.

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