A dual-thread inkjet printing system

Abstract

A double-thread inkjet printing system comprises a plate feeding machine, a first inkjet printer, a plate turning machine, a second inkjet printer, a plate collecting machine, a cooling fan and a fan filter, the fan filter is arranged on the top plate of at least one of the plate feeding machine, the first inkjet printer, the plate turning machine, the second inkjet printer and the plate collecting machine, and is used for introducing external gas into the inside of the plate feeding machine, the first inkjet printer, the plate turning machine, the second inkjet printer and the plate collecting machine, and the cooling fan is used at least for discharging the gas in the plate feeding machine, the first inkjet printer, the plate turning machine, the second inkjet printer and the plate collecting machine to the outside.

Description

Technical Field

[0001] This application relates to the field of printing equipment technology, and in particular to a dual-thread inkjet printing system. Background Technology

[0002] In existing technologies, when inkjet printers perform double-sided inkjet printing, the printhead needs to be maintained at a relatively high ambient temperature to prevent ink from evaporating before it is ejected from the printhead. However, some inks have stringent temperature requirements and need to be kept below room temperature. Therefore, to enable the printhead of the inkjet printer to operate in a higher working environment while reducing the printhead's own temperature and meeting the stringent temperature requirements of the ink, this application provides a dual-thread inkjet printing system. Utility Model Content

[0003] This application provides a dual-thread inkjet printing system, which aims to at least solve one of the technical problems existing in the prior art.

[0004] This application provides a dual-thread inkjet printing system, including a plate feeder, a first inkjet printer, a plate flipper, a second inkjet printer, and a plate take-up machine. The plate flipper is disposed between the first inkjet printer and the second inkjet printer. The plate feeder is disposed on the other side of the first inkjet printer, and the plate take-up machine is disposed on the other side of the second inkjet printer. This allows the first inkjet printer to print products fed from the plate feeder. The plate flipper is used to flip the products printed by the first inkjet printer and transport them to the second inkjet printer, so that the second inkjet printer can print the other side of the products and transport them to the plate take-up machine.

[0005] The dual-thread inkjet printing system further includes a cooling fan and a fan filter. The fan filter is installed on the top plate of at least one of the plate feeder, the first inkjet printer, the flipper, the second inkjet printer, and the plate take-up machine, and is used to introduce external gas into the inside of the plate feeder, the first inkjet printer, the flipper, the second inkjet printer, and the plate take-up machine. The cooling fan is used to exhaust the gas inside the plate feeder, the first inkjet printer, the flipper, the second inkjet printer, and the plate take-up machine to the outside.

[0006] In a dual-thread inkjet printing system according to an embodiment of this application, the plate feeder, the first inkjet printer, the plate flipper, the second inkjet printer, and the plate take-up machine all have a frame structure. The top of the frame structure has multiple air inlets spaced apart along its length. The side of the frame structure has air outlets at the positions of the first inkjet printer and the second inkjet printer. The fan filter is installed on each air inlet. The cooling fan is located closer to the air outlet than to the air inlet, so that the gas inside the frame structure can exchange with the gas outside the frame structure.

[0007] In a dual-thread inkjet printing system according to an embodiment of this application, the length of the air inlet is in the range of 1160mm to 1180mm, the width of the air inlet is in the range of 1690mm to 1710mm; and / or, the air outlet includes a plurality of spaced-apart heat dissipation holes, each of which has a diameter in the range of 200mm to 220mm.

[0008] In a dual-thread inkjet printing system according to one embodiment of this application, the cooling fan is located at the air outlet.

[0009] In a dual-thread inkjet printing system according to an embodiment of this application, the plate feeder has a plate feeding area, a plate feeding robot, and a first feeding area. The plate feeding robot is disposed between the plate feeding area and the first feeding area. The first feeding area is disposed adjacent to the first inkjet printer. The gas flow path formed between the fan filter, the cooling fan, and the air outlet passes through the plate feeding robot and the first feeding area.

[0010] In a dual-thread inkjet printing system according to an embodiment of this application, the first printer has a first printing area and a first unloading area. The first printing area is disposed between the plate feeder and the first unloading area. The first unloading area is disposed adjacent to the flipping machine. The gas flow path formed between the fan filter, the cooling fan and the air outlet passes through the first printing area and the first unloading area.

[0011] In a dual-thread inkjet printing system according to an embodiment of this application, the flipper has a flipping robot, which is used to flip the product and transport it to the second inkjet printer. The gas flow path formed between the fan filter, the cooling fan and the air outlet passes through the flipping robot.

[0012] In a dual-thread inkjet printing system according to an embodiment of this application, the second printer has a second feeding area and a second printing area. The second printing area is located between the second feeding area and the take-up machine. The second feeding area is adjacent to the flipping machine. The gas flow path formed between the fan filter, the cooling fan, and the air outlet passes through the second feeding area and the second printing area.

[0013] In a dual-thread inkjet printing system according to an embodiment of this application, the plate take-up machine includes a plate take-up robot and a second unloading area. The plate take-up robot is disposed between the second inkjet printer and the second unloading area. The gas flow path formed between the fan filter, the cooling fan, and the air outlet passes through the plate take-up robot and the second unloading area.

[0014] In a dual-thread inkjet printing system according to an embodiment of this application, the dual-thread inkjet printing system includes a controller and a temperature sensor. The temperature sensor is disposed within the frame structure. The controller is communicatively connected to the temperature sensor, a cooling fan, and a fan filter, respectively, so that the controller can control the operation of the cooling fan and the fan filter according to the temperature detected by the temperature sensor, so as to realize the exchange of gas inside the frame structure with gas outside the frame structure.

[0015] The technical solution provided in this application embodiment can include the following beneficial effects: This application designs a dual-thread inkjet printing system, including a plate feeder, a first inkjet printer, a plate flipper, a second inkjet printer, and a plate take-up machine. The plate flipper is located between the first inkjet printer and the second inkjet printer, the plate feeder is located on the other side of the first inkjet printer, and the plate take-up machine is located on the other side of the second inkjet printer. This allows the first inkjet printer to print products conveyed from the plate feeder. The plate flipper is used to flip the products printed by the first inkjet printer and convey them to the second inkjet printer, so that the second inkjet printer can print the other side of the product and convey it to the plate take-up machine. This realizes automated inkjet printing production on different sides of the product, eliminating the need for manual plate flipping, saving labor costs, and improving production efficiency.

[0016] The dual-thread inkjet printing system also includes a cooling fan and a fan filter. The fan filter is installed on the top plate of at least one of the plate feeder, the first printer, the flipper, the second printer, and the take-up machine. It is used to introduce external air into the inside of the plate feeder, the first printer, the flipper, the second printer, and the take-up machine. The cooling fan is used to exhaust the air inside the plate feeder, the first printer, the flipper, the second printer, and the take-up machine to the outside, so as to realize the exchange of air inside and outside the system. This allows the printhead to work in a higher working environment, while also reducing the temperature of the printhead itself during printing, so as to maintain the temperature inside the system within a preset temperature range and improve the stability and reliability of the system operation.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a dual-thread inkjet printing system provided in an embodiment of this application;

[0020] Figure 2 yes Figure 1 A schematic diagram of the dual-thread inkjet printing system from another angle;

[0021] Figure 3 yes Figure 1 A schematic diagram of the structure of the first inkjet printer in the series;

[0022] Figure 4 yes Figure 3 An exploded view of the first inkjet printer in the image;

[0023] Figure 5 yes Figure 4 A schematic diagram of the frame structure in the diagram.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10. Plate feeding machine; 10a. Plate feeding area; 10b. Plate feeding robot; 10c. First feeding area; 11. First frame; 111. First air inlet; 112. First heat dissipation area;

[0026] 20. First inkjet printer; 20a. First printing area; 20b. First unloading area; 21. Second frame; 211. Second air inlet; 212. Second heat dissipation area;

[0027] 30. Flip-board machine; 30a. Flip-board robot; 31. Third frame; 311. Third air inlet;

[0028] 40. Second inkjet printer; 40a. Second feeding area; 40b. Second printing area; 41. Fourth frame; 411. Fourth air inlet; 412. Third heat dissipation area;

[0029] 50. Receiving machine; 50a. Receiving robot; 50b. Second unloading area; 51. Fifth frame; 511. Fifth air inlet; 512. Fourth heat dissipation area;

[0030] 60. Fan filter;

[0031] 70. Cooling fan;

[0032] 80. Frame structure; 81. Top plate; 82. First side plate; 83. Second side plate; 84. Air inlet; 85. Air outlet; 86. Mounting cavity;

[0033] 100. Products. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] It should also be understood that the terminology used in this application specification is solely for describing specific realities within the scope of this application. It is important to understand that terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and for 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 application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0037] like Figures 1 to 5As shown, this application provides a dual-thread inkjet printing system, including a plate feeder 10, a first inkjet printer 20, a plate flipper 30, a second inkjet printer 40, and a plate take-up machine 50. The plate flipper 30 is disposed between the first inkjet printer 20 and the second inkjet printer 40. The plate feeder 10 is disposed on the other side of the first inkjet printer 20, and the plate take-up machine 50 is disposed on the other side of the second inkjet printer. This allows the first inkjet printer 20 to print the product 100 conveyed from the plate feeder 10. The plate flipper 30 is used to flip the product 100 after it has been printed by the first inkjet printer 20 and convey it to the second inkjet printer 40, so that the second inkjet printer 40 can print the other side of the product 100 and convey it to the plate take-up machine 50. This realizes automated inkjet printing production of the product 100 on different sides, eliminating the need for manual plate flipping, saving labor costs, and improving production efficiency.

[0038] In an optional embodiment, the dual-thread inkjet printing system further includes a cooling fan 70 and a fan filter 60. The fan filter 60 is disposed on the top plate 81 of at least one of the plate feeder 10, the first inkjet printer 20, the flipper 30, the second inkjet printer 40, and the plate take-up machine 50, for introducing external gas into the inside of the plate feeder 10, the first inkjet printer 20, the flipper 30, the second inkjet printer 40, and the plate take-up machine 50. The cooling fan 70 is at least used to cool the gas inside the plate feeder 10, the first inkjet printer 20, the flipper 30, the second inkjet printer 40, and the plate take-up machine 50. By expelling gases from the outside, the system facilitates the exchange of gases between the inside and outside, enabling the printhead to operate in a higher temperature environment while simultaneously reducing the printhead's own temperature during printing. This maintains the system's temperature within a preset range, enhancing its stability and reliability. The system boasts advantages such as efficient heat dissipation, uniform temperature, clean air environment, energy saving and environmental protection, reduced external interference, ease of maintenance, high-precision printing support, and low noise. It not only improves the temperature stability of dual-thread inkjet printing systems but also extends their lifespan and enhances print quality.

[0039] For example, the plate-feeding machine 10, the first inkjet printer 20, the plate-flipping machine 30, the second inkjet printer 40, and the plate-collecting machine 50 all have a frame structure 80. The frame structure 80 has a top plate 81, a first side plate 82, and a second side plate 83. The first side plate 82 and the second side plate 83 are disposed on both sides of the top plate 81 and together with the top plate 81 form a mounting cavity 86. Each working component of the plate-feeding machine 10, the first inkjet printer 20, the plate-flipping machine 30, the second inkjet printer 40, and the plate-collecting machine 50 is housed in the mounting cavity 86 so that the cooling fan 70 can be used to dissipate the air in the mounting cavity 86. The exhaust gas is discharged outside the frame structure 80, and the fan filter 60 introduces the cool air outside the frame structure 80 into the mounting cavity 86 to achieve gas exchange between the mounting cavity 86 and the outside of the mounting cavity 86. This solves the problem of heat not being dissipated in time within the mounting cavity 86, allowing the various working components within the mounting cavity 86 to operate in a higher working environment. It also reduces the temperature of the printheads of the first inkjet printer 20 and the second inkjet printer 40, meeting the stringent temperature requirements of the ink. Furthermore, it prevents ink from evaporating inside the printhead, which could easily cause printhead clogging.

[0040] By adopting the above technical solution, the dual-thread inkjet printing system, through the installation of a fan filter 60 at the top of the frame structure 80 and cooling fans 70 on the first side plate 82 and / or the second side plate 83 of the frame structure 80, allows the fan filter 60 to introduce cool air from outside the frame structure 80 into the frame structure 80, while the cooling fans 70 expel the gas from inside the frame structure 80 to the outside, ensuring that the gas temperature inside the frame structure 80 remains dynamically balanced. The fan filter 60 not only operates with low noise and provides a stable airflow, avoiding temperature fluctuations caused by airflow turbulence and improving system temperature stability, but also filters dust and particulate matter from the air, preventing contaminants from entering the printing system, thereby reducing printhead clogging and ink contamination, and extending the lifespan of the printhead and ink. The cooling fans 70 primarily provide power for gas exhaust, enabling faster exchange of gas between the inside and outside of the frame structure 80, and better expelling high-temperature gas.

[0041] In an optional embodiment, when the gas temperature inside the rack structure 80 is not much different from the gas temperature outside the rack structure 80, the fan filter 60 and the cooling fan 70 can be turned off, so that the gas inside the rack structure 80 can be discharged autonomously and the gas outside the rack structure 80 can be entered autonomously. Of course, at least one of the fan filter 60 and the cooling fan 70 can be turned on to avoid excessive heat dissipation or energy waste. This application does not limit this.

[0042] In one optional embodiment, the top of the frame structure 80 is provided with multiple air inlets 84 spaced apart along its length, and the sides of the frame structure 80 are provided with air outlets 85 at the positions of the first inkjet printer 20 and the second inkjet printer 40. Each air inlet 84 is equipped with a fan filter 60, and a cooling fan 70 is positioned closer to the air outlet 85 than the air inlet 84, allowing for air exchange between the inside and outside of the frame structure 80. Because the air passes through the fan filter 60 from the air inlets 84 on the top plate 81 to create a positive pressure environment, external dust and contaminants are prevented from entering the frame structure 80 from other directions. Simultaneously, as the fan filter 60 evenly delivers clean air into the frame structure 80 from above, the cooling fan 70 rapidly exhausts hot air from the sides or bottom of the frame structure 80, forming a stable airflow circulation. This effectively reduces the temperature of the printhead and ink channels, ensuring the printhead operates within its optimal temperature range.

[0043] In an optional embodiment, the fan filter 60 is detachably installed at the air inlet 84, and the cooling fan 70 is detachably installed at the air outlet 85, so as to facilitate the disassembly, cleaning and replacement of the fan filter 60 and the cooling fan 70, reduce maintenance costs and extend the service life of the equipment.

[0044] In an optional embodiment, the rack structure 80 includes a first rack 11, a second rack 21, a third rack 31, a fourth rack 41, and a fifth rack 51. The air inlet 84 includes a first air inlet 111, a second air inlet 211, a third air inlet 311, a fourth air inlet 411, and a fifth air inlet 511. The first air inlet 111 is located on the top plate 81 of the first rack 11, the second air inlet 211 is located on the top plate 81 of the second rack 21, the third air inlet 311 is located on the top plate 81 of the third rack 31, and the fourth air inlet 411 is located on the top plate 81 of the third rack 31. The fifth air inlet 511 is located on the top plate 81 of the fourth frame 41. The fan filter 60 is installed in the first air inlet 111, the second air inlet 211, the third air inlet 311, the fourth air inlet 411 and the fifth air inlet 511. The first frame 11 is located outside the plate feeding machine 10, the second frame 21 is located outside the first inkjet printer 20, the third frame 31 is located outside the flipping machine 30, the fourth frame 41 is located outside the second inkjet printer 40, and the fifth frame 51 is located outside the plate receiving machine 50.

[0045] In one optional embodiment, the air outlet 85 includes a first air outlet 85, a second air outlet 85, a third air outlet 85, and a fourth air outlet 85. A first heat dissipation area 112 is provided on the first side plate 82 and the second side plate 83 of the first frame 11. A second heat dissipation area 212 is provided on the first side plate 82 and the second side plate 83 of the second frame 21. A third heat dissipation area 412 is provided on the first side plate 82 and the second side plate 83 of the fifth frame 51. The first air outlet 85 is located below the first heat dissipation area 112, the second air outlet 85 is located below the second heat dissipation area 212, the third air outlet 85 is located below the third heat dissipation area 412, and the fourth air outlet 85 is located below the fourth heat dissipation area 512. A cooling fan 70 is installed in the first heat dissipation area 112, the second heat dissipation area 212, the third heat dissipation area 412, and the fourth heat dissipation area 512.

[0046] In an optional embodiment, the length of the air inlet 84 is in the range of 1160mm to 1180mm, and the width of the air inlet 84 is in the range of 1690mm to 1710mm, so as to ensure the air intake volume of the air inlet 84.

[0047] In an optional embodiment, the air outlet 85 includes a plurality of spaced-apart heat dissipation holes, each with a diameter in the range of 200mm to 220mm, to ensure that a positive pressure environment can be formed within the frame structure 80, preventing external dust and contaminants from entering the printing system from other directions, reducing the interference of the external environment on the temperature stability of the printing system, and improving the reliability of the printing system.

[0048] In one alternative implementation, the outlet temperature of the fan filter 60 is in the range of 15°C to 25°C.

[0049] In an optional embodiment, the first heat dissipation zone 112, the second heat dissipation zone 212, the third heat dissipation zone 412 and the fourth heat dissipation zone 512 are disposed on the side of the first side plate 82 and the second side plate 83 near the top plate 81, and the heat dissipation holes are disposed on the side of the first side plate 82 and the second side plate 83 away from the top plate 81, so that the cooling fan 70 can quickly exhaust the hot air in the frame structure 80 from the side and bottom of the frame structure 80 to form a stable airflow circulation, thereby effectively reducing the temperature of the print head and ink channel.

[0050] In an optional embodiment, the cooling fan 70 is located at the air outlet 85 to exhaust the gas inside the frame structure 80 from the air outlet 85 to the outside of the frame structure 80, so that the high-temperature gas inside the frame structure 80 can be quickly guided to the outside of the frame structure 80, effectively reducing the impact of the high-temperature gas exhausted by the cooling fan 70 on the printheads and ink channels of the first inkjet printer 20 and the second inkjet printer 40.

[0051] In an optional embodiment, the plate feeding machine 10 has a plate feeding area 10a, a plate feeding robot 10b, and a first feeding area 10c. The plate feeding robot 10b is disposed between the plate feeding area 10a and the first feeding area 10c. The first feeding area 10c is disposed adjacent to the first inkjet printer 20. The gas flow path formed between the fan filter 60, the cooling fan 70, and the air outlet 85 passes through the plate feeding robot 10b and the first feeding area 10c to reduce the gas temperature in the plate feeding robot 10b and the first feeding area 10c, so that the gas in the frame structure 80 can be maintained within a preset temperature range.

[0052] In one optional embodiment, the board-throwing robot 10b includes a board-throwing machine 10 manipulator and a board-throwing conveyor roller. The conveying direction of the board-throwing conveyor roller extends along the length of the frame structure 80 into the board-throwing loading area 10a and the first loading area 10c. The board-throwing machine 10 manipulator is located on one side of the board-throwing conveyor roller and includes a board-throwing slide rail, a board-throwing lifting module, a board-throwing steering arm, and a board-throwing suction claw assembly. The board-throwing lifting module is slidably mounted on the board-throwing slide rail and can reciprocate along the conveying direction of the board-throwing conveyor roller. The board-throwing suction claw assembly is connected to the board-throwing lifting module through the board-throwing steering arm. The board-throwing lifting module drives the board-throwing suction claw assembly to move the product 100 in the horizontal direction and can move up and down in the vertical direction to grip and release the product 100.

[0053] In an optional embodiment, the first inkjet printer 20 has a first printing area 20a and a first unloading area 20b. The first printing area 20a is disposed between the plate feeder 10 and the first unloading area 20b. The first unloading area 20b is disposed adjacent to the flipper 30. The gas flow path formed between the fan filter 60, the cooling fan 70 and the air outlet 85 passes through the first printing area 20a and the first unloading area 20b, effectively reducing the temperature of the print head and ink channel of the first inkjet printer 20.

[0054] In an optional embodiment, the flipping machine 30 has a flipping robot 30a, which flips the product 100 and conveys it to the second inkjet printer 40. The gas flow path formed between the fan filter 60, the cooling fan 70, and the air outlet 85 passes through the flipping robot 30a.

[0055] In an optional embodiment, the flipping robot 30a includes a flipping conveyor track and a flipping mechanism. The flipping conveyor track is connected to a first printing conveyor track on the first inkjet printer 20. The flipping conveyor track consists of upper and lower layers of rollers, allowing the product 100 to be transported between the two layers of rollers and clamped and fixed by the roller assembly pressing against the two layers. The flipping mechanism flips the entire flipping conveyor track, allowing the product 100 to be flipped from one side to the other.

[0056] In one optional embodiment, the flipping mechanism is symmetrically arranged on both sides of the flipping conveyor track. It includes a rotating shaft seat and a drive module. The rotating shaft seat is fixed on the outer frame of the flipping conveyor track. The motor of the drive module drives the rotating shaft seat through a pulley mechanism and drives the entire flipping conveyor track to flip.

[0057] In an optional embodiment, the second inkjet printer 40 has a second feeding area 40a and a second printing area 40b. The second printing area 40b is disposed between the second feeding area 40a and the plate take-up machine 50. The second feeding area 40a is disposed adjacent to the plate flipping machine 30. The gas flow path formed between the fan filter 60, the cooling fan 70 and the air outlet 85 passes through the second feeding area 40a and the second printing area 40b, effectively reducing the temperature of the print head and ink channel of the second inkjet printer 40.

[0058] In an optional embodiment, the plate receiving machine 50 includes a plate receiving robot 50a and a second unloading area 50b. The plate receiving robot 50a is disposed between the second inkjet printer 40 and the second unloading area 50b. The gas flow path formed between the fan filter 60, the cooling fan 70, and the air outlet 85 passes through the plate receiving robot 50a and the second unloading area 50b, so that the gas in the frame structure 80 can be maintained within a preset temperature range.

[0059] In an optional embodiment, the board receiving robot 50a includes a board receiving conveyor roller and a board receiving machine 50 robotic arm. The board receiving conveyor roller is disposed between the second inkjet printer 40 and the second unloading area 50b. The board receiving machine 50 robotic arm includes a board receiving slide rail, a board receiving lifting module, a board receiving steering arm, and a board receiving suction claw assembly. The board receiving slide rail is horizontally disposed. The board receiving lifting module is slidably disposed on the board receiving slide rail and can reciprocate along the board receiving conveyor roller. The board receiving suction claw assembly is connected to the board receiving lifting module through the board receiving steering arm. The board receiving lifting module is used to drive the board receiving suction claw assembly to move the product 100 in the horizontal direction and can be lifted and lowered in the vertical direction to grip and release the product 100.

[0060] In one optional implementation, the dual-thread inkjet printing system includes a controller and a temperature sensor. The temperature sensor is located inside the frame structure 80. The controller is communicatively connected to the temperature sensor, the cooling fan 70, and the fan filter 60, respectively, so that the controller can control the operation of the cooling fan 70 and the fan filter 60 according to the temperature detected by the temperature sensor, so as to realize the exchange of gas inside the frame structure 80 with the gas outside the frame structure 80.

[0061] For example, the controller outputs different pulse width modulation signals based on the temperature detected by the temperature sensor, and converts the pulse width modulation signals into drive signals for controlling the operation of the cooling fan 70 and the fan filter 60, so that the temperature inside the rack structure 80 can be maintained within a preset temperature range.

[0062] Specifically, after the temperature sensor transmits the collected gas temperature to the controller, the controller controls the fan filter 60 to introduce clean air from above the rack structure 80 and controls the cooling fan 70 to exhaust the gas inside the rack structure 80. When the gas temperature collected by the temperature sensor is higher than a temperature threshold, the controller outputs a drive signal to the cooling fan 70 and fan filter 60 with an increased duty cycle. This allows the rotation speed of the cooling fan 70 and fan filter 60 to be adjusted according to the temperature inside the rack structure 80, which helps ensure gas exchange between the rack structure 80 and the outside of the chassis while also reducing energy consumption.

[0063] Specifically, when the temperature T0 inside the rack structure 80 is lower than the first temperature threshold T1, the duty cycle of the drive signal is 0, and at least one or both of the cooling fan 70 and the fan filter 60 do not work; when the temperature T0 inside the rack structure 80 is higher than the second temperature threshold T2, the duty cycle of the drive signal is 1, and the cooling fan 70 and the fan filter 60 work at full power; when the temperature T0 in the incubation area is between the first temperature threshold T1 and the second temperature threshold T2, the duty cycle of the drive signal is (T0-T1) / (T2-T1), so that the cooling fan 70 and the fan filter 60 can work according to different duty cycles, so that the temperature inside the rack structure 80 can be maintained within the preset temperature range.

[0064] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0065] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0066] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0067] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A dual-thread inkjet printing system, characterized in that, The system includes a plate feeding machine, a first inkjet printer, a plate flipping machine, a second inkjet printer, and a plate collecting machine. The plate flipping machine is located between the first inkjet printer and the second inkjet printer. The plate feeding machine is located on the other side of the first inkjet printer, and the plate collecting machine is located on the other side of the second inkjet printer. This allows the first inkjet printer to print products fed from the plate feeding machine. The plate flipping machine is used to flip the products printed by the first inkjet printer and transport them to the second inkjet printer so that the second inkjet printer can print the other side of the products and transport them to the plate collecting machine. The dual-thread inkjet printing system further includes a cooling fan and a fan filter. The fan filter is installed on the top plate of at least one of the plate feeder, the first inkjet printer, the flipper, the second inkjet printer, and the plate take-up machine, and is used to introduce external gas into the inside of the plate feeder, the first inkjet printer, the flipper, the second inkjet printer, and the plate take-up machine. The cooling fan is used to exhaust the gas inside the plate feeder, the first inkjet printer, the flipper, the second inkjet printer, and the plate take-up machine to the outside.

2. The dual-thread inkjet printing system according to claim 1, characterized in that, The plate feeding machine, the first inkjet printer, the plate flipping machine, the second inkjet printer, and the plate collecting machine all have a frame structure. The top of the frame structure has multiple air inlets spaced apart along its length. The side of the frame structure has air outlets at the positions of the first inkjet printer and the second inkjet printer. The air inlets are all equipped with the fan filter. The cooling fan is located closer to the air outlet than to the air inlet, so that the gas inside the frame structure can exchange with the gas outside the frame structure.

3. The dual-thread inkjet printing system according to claim 2, characterized in that, The length of the air inlet is in the range of 1160mm to 1180mm, and the width of the air inlet is in the range of 1690mm to 1710mm; and / or, the air outlet includes a plurality of spaced-apart heat dissipation holes, each of which has a diameter in the range of 200mm to 220mm.

4. The dual-thread inkjet printing system according to claim 2, characterized in that, The cooling fan is located at the air outlet.

5. The dual-thread inkjet printing system according to claim 2, characterized in that, The plate feeding machine has a plate feeding area, a plate feeding robot, and a first feeding area. The plate feeding robot is located between the plate feeding area and the first feeding area. The first feeding area is adjacent to the first inkjet printer. The gas flow path formed between the fan filter, the cooling fan, and the air outlet passes through the plate feeding robot and the first feeding area.

6. The dual-thread inkjet printing system according to claim 2, characterized in that, The first inkjet printer has a first printing area and a first unloading area. The first printing area is located between the plate feeding machine and the first unloading area. The first unloading area is adjacent to the flipping machine. The gas flow path formed between the fan filter, the cooling fan and the air outlet passes through the first printing area and the first unloading area.

7. The dual-thread inkjet printing system according to claim 2, characterized in that, The flipping machine has a flipping robot, which is used to flip the product and transport it to the second inkjet printer. The gas flow path formed between the fan filter, the cooling fan and the air outlet passes through the flipping robot.

8. The dual-thread inkjet printing system according to claim 2, characterized in that, The second inkjet printer has a second feeding area and a second printing area. The second printing area is located between the second feeding area and the plate take-up machine. The second feeding area is adjacent to the flipping machine. The gas flow path formed between the fan filter, the cooling fan and the air outlet passes through the second feeding area and the second printing area.

9. The dual-thread inkjet printing system according to claim 2, characterized in that, The plate collecting machine includes a plate collecting robot and a second unloading area. The plate collecting robot is located between the second inkjet printer and the second unloading area. The gas flow path formed between the fan filter, the cooling fan, and the air outlet passes through the plate collecting robot and the second unloading area.

10. The dual-thread inkjet printing system according to claim 2, characterized in that, The dual-thread inkjet printing system includes a controller and a temperature sensor. The temperature sensor is located inside the frame structure. The controller is communicatively connected to the temperature sensor, the cooling fan, and the fan filter, enabling the controller to control the operation of the cooling fan and the fan filter based on the temperature detected by the temperature sensor, thereby facilitating the exchange of gas between the inside and outside of the frame structure.

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