Printing equipment based on nanometer materials

Abstract

The invention discloses printing equipment based on a nano material, and relates to the technical field of printing equipment, and the printing equipment specifically comprises a base, the top of the base is provided with a supporting frame, and the supporting frame is provided with an ink jet structure; the ink jetting structure comprises a nano ink storage box connected with the supporting frame, an ink jetting block connected with the supporting frame through a moving structure and a cooling assembly, an ink cavity is formed in the bottom end of the ink jetting block, and the ink cavity is connected with the liquid outlet end of the nano ink storage box through an ink conveying pipe. According to the printing equipment based on the nanometer materials, the printing ink containing the nanometer materials is vibrated through ultrasonic waves, the agglomeration phenomenon of the nanometer materials in the printing ink is avoided, the uniformity of the printing ink is guaranteed, the printing quality is improved, the printing ink is cooled through the cooling assembly, and the printing efficiency is improved. Heat generated by vibration of the printing ink is prevented from affecting effectiveness of the printing ink, and then the printing quality is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of printing equipment, in particular to a printing equipment based on nanomaterials. Background Art

[0002] With the rapid development of printing technology, its application in outdoor advertising, packaging, labeling and other fields is becoming increasingly widespread. However, these applications often place high demands on the waterproof performance of printed materials. For example, outdoor signs need to withstand rain and humid environments for a long time, and food packaging needs to prevent liquid penetration and deterioration of the contents. Traditional waterproof printing technology mainly relies on lamination (such as BOPP and PET films) or application of waterproof coatings (such as UV varnish and acrylic resin). Although these technologies can improve the waterproofness of printed materials to a certain extent, they still have the following limitations: High cost: The lamination process requires additional materials and equipment, and the film layer is easy to peel off, resulting in repeated processing and increased maintenance costs; the waterproof coating relies on chemical solvents, and the raw materials and coating process costs are relatively high.

[0003] Poor environmental friendliness: Traditional coating materials (such as plastic films) are difficult to degrade and easily cause environmental pollution after being discarded; waterproof coatings often contain volatile organic compounds (VOCs), which is not in line with the development trend of green printing.

[0004] Insufficient durability: The coating layer is prone to aging and peeling due to mechanical wear or ultraviolet radiation; the coating may fail due to long-term friction or chemical corrosion, resulting in a decrease in waterproof performance.

[0005] In recent years, nanomaterials (such as nanosilica, graphene, and hydrophobic nanocellulose) have provided new insights into waterproof printing technology due to their unique hydrophobicity and surface effects. For example, by modifying inks or substrates with nanomaterials, superhydrophobic surfaces (contact angles >150°) can be formed on microstructures, achieving a "self-cleaning" effect. However, due to their high specific surface area and van der Waals forces, nanoparticles are prone to agglomeration, making it difficult to evenly disperse in inks or coatings, which in turn affects the quality of printed films and makes printheads prone to clogging, further impacting their usability. Based on this, the present application proposes a printing device based on nanomaterials. Summary of the Invention

[0006] The present invention provides a printing device based on nanomaterials, which solves the problems mentioned in the above background art that nanoparticles in nano-ink are prone to agglomeration, affecting printability and film quality, and the nozzle is easily clogged by agglomerated nanoparticles.

[0007] The present invention provides the following technical solution: a nanomaterial-based printing device, comprising a base, a support frame provided on the top of the base, an inkjet structure provided on the support frame, the inkjet structure comprising a nano-ink storage box connected to the support frame, an inkjet block connected to the support frame via a movable structure, and a cooling component, the bottom end of the inkjet block is provided with an ink cavity, the ink cavity is connected to the liquid outlet end of the nano-ink storage box via an ink delivery tube, the ink delivery tube is evenly provided with a first transducer, and the ink delivery tube is a multi-layer sleeve structure. The structure comprises, from the inside to the outside, an inner tube, an intermediate tube in contact with the output end of the first transducer, and an outer tube, an ink flow channel is formed between the inner tube and the intermediate tube, a cooling channel is formed between the intermediate tube and the outer tube, and the end of the cooling channel is connected to the cooling component; piezoelectric nozzles are evenly arranged at the bottom of the ink cavity, and the piezoelectric nozzles include a nozzle body, a vibration disk and a piezoelectric element, and the middle parts of both the vibration disk and the piezoelectric element are provided with a through hole, a clearing rod is provided in the through hole, and the clearing rod is connected to the inkjet block through an electric telescopic rod.

[0008] Preferably, the outer wall of the inner tube and the inner wall of the intermediate tube are both provided with a sound wave reflecting layer, the inner cavity of the cooling flow channel is evenly provided with buffer mesh rings, and the intermediate tube and the outer tube are connected through the buffer mesh rings.

[0009] Preferably, the clearing rod is adapted to the nozzle of the nozzle body, and the clearing rod is gap-fitted with the through hole.

[0010] Preferably, visual sensors are provided on both sides of the inkjet block.

[0011] Preferably, the inner cavity of the nano-ink storage box is movably connected to an extrusion plate, and the extrusion plate is connected to the nano-ink storage box through a hydraulic telescopic rod. A second transducer is provided on the extrusion plate, and an ultrasonic generator is provided on one side of the nano-ink storage box, and the first transducer and the second transducer are both connected to the ultrasonic generator.

[0012] Preferably, a cooling plate is provided at the bottom of the nano ink storage box, and a heat conducting plate is provided on the top of the cooling plate.

[0013] Preferably, a groove is provided in the middle of the top of the base, and a conveying mechanism is provided in the groove, the conveying mechanism includes a conveyor belt, hollow cavities are evenly provided on the conveyor belt, a vacuum suction cup adapted to the printing material is provided in the middle of the outer wall of the hollow cavity, an exhaust groove is provided on one side of the groove, the exhaust groove is adapted to the exhaust end of the hollow cavity, an air inlet groove is provided on the other side of the groove, a vacuum pump is provided on the groove, and the air inlet end of the vacuum pump is connected to the inner cavity of the exhaust groove.

[0014] Preferably, a sealing strip is provided on the outer wall of the conveyor belt, the inner cavity of the air extraction groove is connected with the inner cavity of the groove, the air inlet groove is a through groove, and when the hollow cavity is aligned with the air inlet groove, the hollow cavity is connected with the external environment of the base through the air inlet groove.

[0015] Preferably, a fixing frame is provided on the top of the base, and a heating component is provided on the fixing frame, and the heating component includes a circulating fan, an exhaust plate, a return plate and an air heater. A heating chamber is provided in the middle of the fixing frame, and an exhaust plate is provided in the middle of the top of the heating chamber. The air outlet end of the circulating fan is connected to the air inlet end of the exhaust plate through the air heater, and a second temperature sensor is provided at the air outlet end of the circulating fan, and return plates are provided on both sides of the bottom end of the heating chamber, and the air outlet end of the return plate is connected to the air inlet end of the circulating fan.

[0016] Preferably, the liquid inlet end of the cooling plate is connected to the liquid outlet end of the cooling component through a first cooling tube, the liquid outlet end of the cooling plate is connected to the return end of the cooling component through a second cooling tube, and the return end of the cooling component is provided with a first temperature sensor; the liquid inlet end of the cooling channel is connected to the liquid outlet end of the cooling component through a third cooling tube, and the liquid outlet end of the cooling channel is connected to the return end of the cooling component through a fourth cooling tube.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. This nanomaterial-based printing equipment uses ultrasonic waves to vibrate the printing ink containing nanomaterials to prevent the nanomaterials in the printing ink from agglomerating, ensure the uniformity of the printing ink, improve the printing quality, reduce the probability of nozzle clogging, and use a cooling component to cool the printing ink to prevent the heat generated by the vibration of the printing ink from affecting the effectiveness of the printing ink, thereby ensuring printing quality.

[0018] 2. The nanomaterial-based printing equipment adopts inkjet printing, and during the printing process, uses visual sensors to monitor the printing quality in real time, so that clogged nozzles can be detected in time, and the clogged nozzles can be cleaned using a clearing rod, so that the nozzles can be put into use quickly, thereby improving the printing quality and work efficiency of the printing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of the structure of the present invention; Figure 2 This is a schematic diagram of the inkjet structure of the present invention; Figure 3 This is a schematic diagram of the explosion of the structural base of the present invention; Figure 4 This is a schematic cross-sectional view of the ink delivery pipe structure of the present invention; Figure 5This is a cross-sectional schematic diagram of the nano-ink storage box structure of the present invention; Figure 6 This is a bottom view of the structural fixing frame of the present invention; Figure 7 Schematic cross-sectional view of the structural fixing frame of the present invention; Figure 8 This is a schematic cross-sectional view of the inkjet block structure of the present invention.

[0020] In the figure: 1. Base; 2. Conveyor belt; 3. Vacuum suction cup; 4. Servo motor; 5. Vacuum pump; 6. Air inlet slot; 7. Air exhaust slot; 8. Hollow cavity; 9. Fixing frame; 10. Circulation fan; 11. Exhaust plate; 12. Return plate; 13. Second air duct; 14. First air duct; 15. Air heater; 16. Second temperature sensor; 17. Support frame; 18. Inkjet block; 19. Nano ink storage box; 20. Stopper; 21. Hydraulic telescopic rod; 22. Water storage tank; 23. Water circulation refrigeration device; 24. First cooling pipe; 25. Fourth cooling pipe; 26. Ultrasonic generator generator; 27. first temperature sensor; 28. second cooling tube; 29. ink delivery tube; 30. first transducer; 31. third cooling tube; 32. visual sensor; 33. extrusion plate; 34. second transducer; 35. cooling plate; 36. heat conducting plate; 37. outer tube; 38. buffer mesh ring; 39. inner tube; 40. middle tube; 41. nozzle body; 42. vibration plate; 43. piezoelectric element; 44. clearing rod; 45. electric telescopic rod; 46. sound wave reflecting layer; 47. groove; 48. synchronous roller; 49. connecting block; 50. lifting structure; 51. translation structure. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] The present invention provides an embodiment: please refer to Figures 1-8A nanomaterial-based printing device includes a base 1, a groove 47 is provided in the middle of the top of the base 1, a conveying mechanism is provided in the groove 47, and the conveying mechanism includes a conveyor belt 2, a synchronous roller 48 and a servo motor 4. Synchronous rollers 48 are movably connected on both sides of the inner cavity of the groove 47. The two synchronous rollers 48 are rotatably connected through the conveyor belt 2. The servo motor 4 is connected to the base 1, and the end of the output shaft of the servo motor 4 is connected to the end of a synchronous roller 48 through a reducer. When the servo motor 4 rotates, it can drive the synchronous roller 48 connected to it to rotate, and the synchronous roller 48 drives the conveyor belt 2 to rotate. When the printing device is in use, the substrate can be placed on the conveyor belt 2, and the conveyor belt 2 is used to transport the substrate.

[0023] Hollow cavities 8 are evenly arranged on the conveyor belt 2, and a vacuum suction cup 3 adapted to the printing substrate is arranged in the middle of the outer wall of the hollow cavity 8. The vacuum suction cup 3 can play a positioning function, so that the placement position of the printing substrate on the conveyor belt 2 can be kept consistent, thereby improving the conveying accuracy of the printing substrate. An exhaust groove 7 is provided on one side of the groove 47, and the exhaust groove 7 is adapted to the exhaust end of the hollow cavity 8. The inner cavity of the exhaust groove 7 is connected with the inner cavity of the groove 47. During the rotation of the conveyor belt 2, the exhaust end of the hollow cavity 8 can be aligned with the inner cavity of the exhaust groove 7. A vacuum pump 5 is provided on the groove 47, and the air inlet end of the vacuum pump 5 is connected with the inner cavity of the exhaust groove 7. Through the setting of the vacuum pump 5, when the exhaust end of the hollow cavity 8 is connected with the inner cavity of the exhaust groove 7, the vacuum pump 5 can extract the air in the hollow cavity, so that the printing material in contact with the vacuum suction cup 3 can be connected to the vacuum suction cup 3 under negative pressure, thereby fixing the position of the printing material, thereby ensuring the stability of the position of the printing material during transportation, improving the printing quality of the printing material and improving the process stability of the printing equipment.

[0024] The outer wall of the conveyor belt 2 is provided with a sealing strip, which is used to improve the sealing between the conveyor belt 2 and the base 1, so as to facilitate the discharge of gas in the hollow cavity and the maintenance of vacuum. The sealing strip can be made of rubber.

[0025] An air inlet groove 6 is provided on the other side of the groove 47. The air inlet groove 6 is a through groove. When the hollow cavity 8 is aligned with the air inlet groove 6, the hollow cavity 8 is connected with the external environment of the base 1 through the air inlet groove 6. At this time, the air in the external environment of the base 1 can enter the hollow cavity 8 through the air inlet groove 6, thereby releasing the negative pressure connection between the printing substrate and the vacuum suction cup 3, making it convenient to remove the printing substrate after printing.

[0026] A fixing frame 9 is provided on the top of the base 1, a heating chamber is provided in the middle of the bottom of the fixing frame 9, the vacuum suction cup 3 is located below the heating chamber, a heating component is provided on the fixing frame 9, and the heating component includes a circulating fan 10, an exhaust plate 11, a return plate 12 and an air heater 15. An exhaust plate 11 is provided in the middle of the top of the heating chamber, the air outlet end of the circulating fan 10 is connected to the air inlet end of the air heater 15, the air outlet end of the air heater 15 is connected to the exhaust plate 11 through the first air duct 14, and the air outlet end of the circulating fan 10 is connected to the air inlet end of the air heater 15 through the air heater 15. 15 is connected to the air inlet end of the exhaust plate 11, and a second temperature sensor 16 is provided at the air outlet end of the circulating fan 10. The second temperature sensor 16 is used to detect the temperature of the air discharged by the circulating fan 10. The controller of the printing device can control the operating frequency of the air heater 15 based on the temperature detected by the second temperature sensor 16, thereby ensuring that the temperature of the air discharged by the exhaust plate 11 meets actual needs. When the substrate passes through the heating chamber, hot air heating can be achieved, thereby improving the adhesion of the nano-ink, ensuring the flatness of the ink layer, and improving the printing quality. In one embodiment of the present application, the air heater 15 uses the heat emitted by the heating wire when it is energized to heat the air.

[0027] Return plates 12 are provided on both sides of the bottom end of the heating chamber. The air outlet end of the return plate 12 is connected to the air inlet end of the circulating fan 10 through a second air duct 13. The hot air at the bottom end of the heating chamber can be recycled through the return plate 12, reducing the energy consumption of the air heater 15 and saving resources. Preferably, the return plate 12 is located below the top of the substrate, so that the hot air can fully heat the substrate.

[0028] A support frame 17 is provided on the top of the base 1. After the printing material is heated, it moves to the bottom of the support frame 17. An inkjet structure is provided on the support frame 17. The inkjet structure includes a nano-ink storage box 19 connected to the support frame 17. The nano-ink to be sprayed is stored in the nano-ink storage box 19. The inner cavity of the nano-ink storage box 19 is movably connected with an extrusion plate 33. The extrusion plate 33 is connected to the nano-ink storage box 19 through a hydraulic telescopic rod 21. Under the action of the extension and retraction of the hydraulic telescopic rod 21, the position of the extrusion plate 33 in the nano-ink storage box 19 can be changed. The extrusion plate 33 can squeeze the nano-ink, so that the nano-ink in the nano-ink storage box 19 can be discharged through the liquid outlet end of the nano-ink storage box 19, and a liquid inlet is provided on one side of the top of the nano-ink storage box 19. The liquid inlet is sealed by a plug 20, and the staff can replenish the nano-ink through the liquid inlet.

[0029] In addition, a second transducer 34 is provided on the extrusion plate 33, an ultrasonic generator 26 is provided on one side of the nano-ink storage box 19, and the first transducer 30 is connected to the ultrasonic generator 26. The coordinated use of the ultrasonic generator 26 and the first transducer 30 can make the nano-ink vibrate, avoid the agglomeration of nanomaterials in the nano-ink, and improve the fluidity of the nano-ink, thereby facilitating the use of the nano-ink.

[0030] A cooling plate 35 is provided at the bottom of the nano-ink storage box 19, and a heat conducting plate 36 is provided on the top of the cooling plate 35 to improve the uniformity of the nano-ink temperature, reduce the influence of the heat generated by ultrasonic vibration on the nano-ink, and facilitate the cooling plate 35 to dissipate heat of the nano-ink. The box wall of the nano-ink storage box 19 is made of a heat-conducting material, such as stainless steel. This arrangement facilitates the heat dissipation of the nano-ink storage box 19.

[0031] A cooling assembly is provided on the support frame 17. The liquid inlet of the cooling plate 35 is connected to the liquid outlet of the cooling assembly via a first cooling pipe 24. The liquid outlet of the cooling plate 35 is connected to the return end of the cooling assembly via a second cooling pipe 28. The return end of the cooling assembly is provided with a first temperature sensor 27. The cooling assembly is conventional and may comprise a water storage tank 22 and a water circulation refrigeration device 23. The water circulation refrigeration device 23 cools the cooling water in the cooling assembly. The cooled cooling water enters the water storage tank 22 for storage. Excess cooling water in the water storage tank 22 is discharged through the water outlet of the cooling assembly. The heated cooling water enters the water circulation refrigeration device 23 through the return end of the cooling assembly. In one embodiment of the present application, the water circulation refrigeration device 23 is of the prior art and can be used as long as it can achieve water circulation cooling.

[0032] The support frame 17 is connected to the inkjet block 18 through a movable structure. Under the action of the movable structure, the inkjet block 18 can move in the length direction of the support frame 17 and in the vertical direction. The movable structure is a prior art. In one embodiment of the present application, the movable structure includes a translation structure 51 and a lifting structure 50. The end of the output shaft of the translation structure 51 is connected to a connecting block 49. A lifting structure 50 is provided on the side of the connecting block 49 close to the fixed frame 9. The bottom of the lifting structure 50 is connected to the inkjet block 18. Both the translation structure 51 and the lifting structure 50 can be hydraulic telescopic rods in the prior art.

[0033] The bottom end of the inkjet block 18 is provided with an ink chamber, which is connected to the liquid outlet of the nano-ink storage cartridge 19 via an ink delivery tube 29. The ink delivery tube 29 is a multi-layered sleeve structure, comprising, from the inside to the outside, an inner tube 39, an intermediate tube 40, and an outer tube 37. An ink flow channel is formed between the inner and intermediate tubes 39, 40. The ink flow channel is connected to the liquid outlet of the nano-ink storage cartridge 19. The nano-ink in the nano-ink storage cartridge 19 flows through the ink flow channel under the action of the extrusion plate 33, and ultimately enters the ink chamber. The ink delivery tube 29 can be made of metal, such as stainless steel.

[0034] The first transducers 30 are evenly arranged on the ink delivery tube 29, the intermediate tube 40 is in contact with the output end of the first transducer 30, and the first transducer 30 is connected to the ultrasonic generator 26. The coordinated use of the ultrasonic generator 26 and the first transducer 30 can cause the nano-ink to vibrate during the transportation process in the ink delivery tube 29, thereby avoiding the agglomeration of nanomaterials in the nano-ink and reducing the probability of clogging of the piezoelectric nozzle. The outer wall of the inner tube 39 and the inner wall of the intermediate tube 40 are both provided with a sound wave reflecting layer 46. The sound wave reflecting layer 46 can be a fluorine coating. Through the setting of the sound wave reflecting layer 46, the efficiency of sound energy transmission can be improved, the deagglomeration effect of nanomaterials can be enhanced, and the flow resistance of nano ink can be reduced, and the probability of nano particle deposition and blockage can be reduced. The inner cavity of the cooling flow channel is evenly provided with a buffer mesh ring 38. The intermediate tube 40 and the outer tube 37 are connected through the buffer mesh ring 38. The material of the buffer mesh ring 38 can be set according to needs and is not limited here. Through the setting of the buffer mesh ring 38, the periodic stress generated by the ultrasonic high-frequency vibration of the ink delivery tube 29 can be absorbed, metal fatigue cracks can be prevented, and the regular reflection interface on the pipeline surface can be destroyed, local overheating can be prevented, and the failure of the nano ink can be avoided.

[0035] A cooling channel is formed between the middle tube 40 and the outer tube 37, and the end of the cooling channel is connected to the cooling component. The liquid inlet end of the cooling channel is connected to the liquid outlet end of the cooling component through the third cooling tube 31, and the liquid outlet end of the cooling channel is connected to the reflux end of the cooling component through the fourth cooling tube 25. When the present application is in use, the cooling component can allow the cooling liquid to flow in the cooling channel. The cooling liquid cools the nano ink during the flow process to prevent the nano ink from failing due to overheating.

[0036] Visual sensors 32 are provided on both sides of the inkjet block 18, and piezoelectric nozzles are evenly provided at the bottom of the ink cavity. The piezoelectric nozzle includes a nozzle body 41, a vibration disk 42 and a piezoelectric element 43. The vibration disk 42 and the piezoelectric element 43 can be bonded with a conductive glue (such as silver epoxy resin). The vibration disk 42 is connected to the nozzle body 41. When the piezoelectric element 43 is deformed, it can push the vibration disk 42 to bend, thereby changing the internal volume of the nozzle body 41. The pressure wave formed by the volume compression is transmitted to the nozzle, overcoming the surface tension of the nano-ink to form ink droplets and spraying them onto the substrate, thereby realizing inkjet printing of the substrate. After the spraying, the volume of the nozzle body 41 is restored, and the ink in the ink cavity enters the inner cavity of the nozzle body 41 through the liquid inlet channel of the piezoelectric nozzle, thereby realizing ink replenishment.

[0037] Both the vibration disk 42 and the piezoelectric element 43 are provided with a through hole in the middle, and a clearing rod 44 is provided in the through hole. The clearing rod 44 is connected to the inkjet block 18 via an electric telescopic rod 45. The clearing rod 44 is adapted to the nozzle of the nozzle body 41, and the clearing rod 44 is in gap with the through hole. Through the setting of the visual sensor 32, the controller of the device can judge the inkjet printing quality of the substrate based on the data detected by the visual sensor 32. When the ink is not sprayed on the part to be printed on the substrate, the controller in the device can determine that the nozzle is clogged. When the nozzle is clogged, the controller controls the electric telescopic rod 45 in the corresponding area to drive the clearing rod 44 to move downward. The clearing rod 44 squeezes out the blockage in the nozzle hole, realizes the cleaning of the nozzle, and facilitates the continued operation of the device. The material of the vibration disk 42 can be a high-strength material, such as titanium alloy. The clearing rod 44 is a heat-conductive material, and its material can be a graphene-copper composite material, which facilitates the heat dissipation of the piezoelectric element 43 and prevents the piezoelectric element from overheating.

[0038] The electrical appliances involved in this application are all existing technologies. Technicians in this field can select appropriate models of electrical components according to their needs. No restrictions or detailed descriptions are made here. Technicians in this field understand their connection methods. Through these people, all electrical components in this application are connected to their corresponding power supplies through wires, and according to actual conditions, appropriate controllers are selected to meet control requirements. Please refer to the description below for specific connections and control sequences. The electrical connections between the electrical components are completed in a sequential working order. The detailed connection methods are well known in this field. The following mainly introduces the working principles and processes, and no further explanation of electrical control is given.

[0039] In summary: when the printing device based on nanomaterials is used, the printing material is placed on the vacuum suction cup 3 adapted thereto, and the conveyor belt 2 is used to drive the printing material to move. When the hollow cavity 8 below the printing material is aligned with the inner cavity of the air extraction groove 7, the vacuum pump 5 works, and the vacuum pump 5 extracts the air in the hollow cavity 8, so that the printing material and the vacuum suction cup 3 are connected under negative pressure, thereby fixing the position of the printing material. Under the action of the conveyor belt 2, the printing material passes under the fixing frame 9 in turn. After the printing material passes under the fixing frame 9, the hot air is used to heat the printing material as needed. The heated printing material moves to the bottom of the inkjet block 18, and the nozzle of the piezoelectric nozzle can spray nano ink and... During the storage and transportation of nano ink, the transducer causes the nano ink to vibrate to prevent the nano ink from agglomerating and reduce the probability of clogging of the piezoelectric nozzle. When the device controller determines that the nozzle is clogged based on the data captured by the visual sensor 32, the electric telescopic rod 45 adapted to the clogged nozzle drives the clearing rod 44 to move. The clearing rod 44 can squeeze the blockage at the nozzle, squeeze out the blockage, and clear the nozzle, making it easier for the device to continue to be used. When the hollow cavity 8 under the printed substrate is aligned with the air inlet groove 6, the outside air enters the hollow cavity 8 through the air inlet groove 6, releasing the negative pressure connection of the substrate, making it easier to remove the substrate.

[0040] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each structure adopt conventional technical means such as mature bolt connections in the existing technology. Machinery, parts and equipment all adopt conventional models in the existing technology, which will not be described in detail here, and the manufacturing materials of each structural component of this application can be selected according to needs, without limitation. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A nanomaterial-based printing device comprising a base (1), characterized in that: A support frame (17) is provided on the top of the base (1), and an inkjet structure is provided on the support frame (17). The inkjet structure includes a nano ink storage box (19) connected to the support frame (17), an inkjet block (18) connected to the support frame (17) through a movable structure, and a cooling component. The bottom end of the inkjet block (18) is provided with an ink cavity, and the ink cavity is connected to the liquid outlet end of the nano ink storage box (19) through an ink delivery tube (29). The ink delivery tube (29) is evenly provided with a first transducer (30). The ink delivery tube (29) is a multi-layer sleeve structure, which includes, from the inside to the outside, an inner tube (39), an inner tube (39) connected to the first transducer (30), and an ink delivery tube (29). ) output end is contacted with an intermediate tube (40) and an outer tube (37), an ink flow channel is formed between the inner tube (39) and the intermediate tube (40), a cooling channel is formed between the intermediate tube (40) and the outer tube (37), and the end of the cooling channel is connected to the cooling component; piezoelectric nozzles are evenly arranged at the bottom of the ink cavity, and the piezoelectric nozzles include a nozzle body (41), a vibration disk (42) and a piezoelectric element (43), and the middle parts of the vibration disk (42) and the piezoelectric element (43) are both provided with a through hole, and a clearing rod (44) is provided in the through hole, and the clearing rod (44) is connected to the inkjet block (18) through an electric telescopic rod (45).

2. The nanomaterial-based printing device according to claim 1, characterized in that: The outer wall of the inner tube (39) and the inner wall of the intermediate tube (40) are both provided with a sound wave reflection layer (46), the inner cavity of the cooling flow channel is evenly provided with a buffer mesh ring (38), and the intermediate tube (40) and the outer tube (37) are connected via the buffer mesh ring (38).

3. The nanomaterial-based printing device according to claim 1, characterized in that: The clearing rod (44) is adapted to the nozzle of the nozzle body (41), and the clearing rod (44) is gap-matched with the through hole.

4. The nanomaterial-based printing device according to claim 1, characterized in that: Vision sensors (32) are provided on both sides of the inkjet block (18).

5. The nanomaterial-based printing device according to claim 1, characterized in that: The inner cavity of the nano-ink storage box (19) is movably connected to an extrusion plate (33), the extrusion plate (33) is connected to the nano-ink storage box (19) via a hydraulic telescopic rod (21), a second transducer (34) is provided on the extrusion plate (33), an ultrasonic generator (26) is provided on one side of the nano-ink storage box (19), and the first transducer (30) and the second transducer (34) are both connected to the ultrasonic generator (26).

6. The nanomaterial-based printing device according to claim 5, characterized in that: A cooling plate (35) is provided at the bottom of the nano-ink storage box (19), and a heat conducting plate (36) is provided at the top of the cooling plate (35).

7. The nanomaterial-based printing device according to claim 1, characterized in that: A groove (47) is provided in the middle of the top of the base (1), and a conveying mechanism is provided in the groove (47), the conveying mechanism including a conveyor belt (2), hollow cavities (8) are evenly provided on the conveyor belt (2), a vacuum suction cup (3) adapted to the printing material is provided in the middle of the outer wall of the hollow cavity (8), an air extraction groove (7) is provided on one side of the groove (47), the air extraction groove (7) is adapted to the exhaust end of the hollow cavity (8), an air inlet groove (6) is provided on the other side of the groove (47), a vacuum pump (5) is provided on the groove (47), and the air inlet end of the vacuum pump (5) is communicated with the inner cavity of the air extraction groove (7).

8. The nanomaterial-based printing device according to claim 7, characterized in that: The outer wall of the conveyor belt (2) is provided with a sealing strip, the inner cavity of the air extraction groove (7) is communicated with the inner cavity of the groove (47), the air inlet groove (6) is a through groove, and when the hollow cavity (8) is aligned with the air inlet groove (6), the hollow cavity (8) is communicated with the external environment of the base (1) through the air inlet groove (6).

9. The nanomaterial-based printing device according to claim 1, characterized in that: A fixing frame (9) is provided on the top of the base (1), and a heating component is provided on the fixing frame (9), and the heating component includes a circulation fan (10), an exhaust plate (11), a return plate (12) and an air heater (15). A heating chamber is provided in the middle of the fixing frame (9), and an exhaust plate (11) is provided in the middle of the top of the heating chamber. The air outlet end of the circulation fan (10) is connected to the air inlet end of the exhaust plate (11) through the air heater (15), and a second temperature sensor (16) is provided at the air outlet end of the circulation fan (10). Return plates (12) are provided on both sides of the bottom end of the heating chamber, and the air outlet end of the return plate (12) is connected to the air inlet end of the circulation fan (10).

10. The nanomaterial-based printing device according to claim 6, characterized in that: The liquid inlet end of the cooling plate (35) is connected to the liquid outlet end of the cooling component through a first cooling pipe (24), the liquid outlet end of the cooling plate (35) is connected to the return end of the cooling component through a second cooling pipe (28), and the return end of the cooling component is provided with a first temperature sensor (27); the liquid inlet end of the cooling channel is connected to the liquid outlet end of the cooling component through a third cooling pipe (31), and the liquid outlet end of the cooling channel is connected to the return end of the cooling component through a fourth cooling pipe (25).

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