Double-sided ink-jet printing equipment with forward paper feeding function
By setting up drying modules and humidification components in the double-sided inkjet printing equipment, the printing path is optimized, and the impact of ambient temperature and humidity on the printing effect is solved, achieving a stable double-sided printing effect and a compact equipment design.
Patent Information
- Application Number
- CN202422183344.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-05
AI Technical Summary
In the prior art, the printing effect of the double-sided inkjet printing device is easily affected by ambient temperature and humidity, and is difficult to effectively control.
A double-sided inkjet printing device with forward paper is used, and the first and second printing modules are arranged to print on both sides of the printing medium respectively. A drying module is provided in the middle and behind to dry. A humidification component is arranged at the paper inlet to control the temperature and humidity, and the printing path is optimized using the conveying mechanism and power components.
It effectively avoids the adverse impact of environmental temperature and humidity changes on the printing effect, ensures the stability and quality of double-sided printing, reduces the equipment length, and improves the reliability of the printing equipment.
Smart Images
Figure CN223131660U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of inkjet printing, in particular to a double-sided inkjet printing device with forward paper feeding. Background Art
[0002] In the inkjet printing industry, some products need to perform inkjet printing on both the front and back sides of the printing medium. For the inkjet printing of such products, two opposing printing modules are often used. One printing module is responsible for printing the front side of the product. After printing is completed, the printed product is turned over through the paper path layout and then printed on the back side. When the product is performing double-sided printing, the environmental temperature and humidity during the printing process have a greater impact on the print head, which will have a greater impact on the printing effect. However, in the prior art, the impact of environmental temperature and humidity on the printing effect cannot be effectively avoided. Summary of the Utility Model
[0003] In view of this, the utility model provides a double-sided inkjet printing device with forward paper feeding, which is used to solve the technical problem that the existing double-sided printing method is greatly affected by environmental temperature and humidity.
[0004] The technical solution adopted by the utility model is as follows:
[0005] In a first aspect, the utility model provides a double-sided inkjet printing device with forward paper feeding, including:
[0006] A first printing module, which is used to print the first side of the printing medium;
[0007] A second printing module, which is used to print the second side of the printing medium, and the second side and the first side are opposite sides of the printing medium;
[0008] A first drying module, which is located on the printing medium conveying path between the first printing module and the second printing module;
[0009] A second drying module, which is located on the printing medium conveying path after the second printing module;
[0010] A first humidifying component, which is located at the paper feeding port of the first printing module;
[0011] A second humidifying component, which is located at the paper feeding port of the second printing module;
[0012] A conveying mechanism, which is used to convey the printing medium to move along a predetermined printing medium conveying path.
[0013] Preferably, the printing medium conveying path of the conveying mechanism includes a printing medium conveying path in which the printing medium is conveyed to the second printing module around the outside of the first printing module after being printed by the first printing module.
[0014] Preferably, the conveying direction of the printing medium after being printed by the second printing module is opposite to the conveying direction after being printed by the first printing module.
[0015] Preferably, it further includes a first vision detection component, and the first vision detection component is located on the conveying path of the printing medium between the first printing module and the first drying module, and / or
[0016] It further includes a second vision detection component, and the second vision detection component is located on the conveying path of the printing medium between the second printing module and the second drying module.
[0017] Preferably, the conveying mechanism further includes a first power component, a second power component, and a third power component. The first power component is located on the conveying path of the printing medium before the first printing module, the second power component is located on the conveying path of the printing medium between the first printing module and the second printing module, and the third power component is located on the conveying path of the printing medium after the second drying module.
[0018] Preferably, the second power component includes a first traction roller, and the first traction roller is a water-cooled traction roller, and / or
[0019] The third power component includes a second traction roller, and the second traction roller is a water-cooled traction roller.
[0020] Preferably, it further includes a first tension detection piece and a second tension detection piece. The first tension detection piece is located on the conveying path of the printing medium between the first power component and the first printing module, and the second tension detection piece is located on the conveying path of the printing medium between the second power component and the second printing module.
[0021] Preferably, it further includes a skew adjustment component, and the skew adjustment component is used to adjust the movement track of the printing medium. The skew adjustment component is located on the path of the printing medium before passing through the first printing module.
[0022] Preferably, the first drying module includes a first oven and a second oven which are symmetrically arranged. The printing medium passes through the first oven along a first direction and then folds back to a second direction, and passes through the second oven along the second direction. The second direction and the first direction are two opposite directions, and / or
[0023] The second drying module includes a third oven and a fourth oven which are symmetrically arranged. The printing medium passes through the third oven along a third direction and then folds back to a fourth direction, and passes through the fourth oven along the fourth direction. The fourth direction and the third direction are two opposite directions.
[0024] Preferably, the printing medium enters the printing device from the lower part of the double-sided inkjet printing device with forward paper feeding, and / or
[0025] The printing medium is sent out from the lower part of the double-sided inkjet printing device with forward paper feeding to the next process.
[0026] Beneficial effects: The double-sided inkjet printing device with forward paper feeding of the present utility model is provided with a first drying module on the printing medium conveying path between the first printing module and the second printing module to dry the printing medium after the first side printing, which can avoid the influence of subsequent transmission and processing processes on the printing effect of the first side. The present utility model also sets a second drying module on the printing medium conveying path after the second printing module to dry the printing medium after the second side printing, which can avoid the influence of subsequent transmission and processing processes on the printing effect of the second side. In this embodiment, a first humidifying component is set at the paper inlet of the first printing module to control the temperature and humidity of the first printing module by using the first humidifying component, and a second humidifying component is set at the paper inlet of the second printing module to control the temperature and humidity of the second printing module by using the second humidifying component, thereby effectively avoiding the adverse influence of environmental temperature and humidity changes on the printing effect. Description of the Drawings
[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings, and all of these are within the protection scope of the present utility model.
[0028] Figure 1 It is a schematic structural diagram of the double-sided inkjet printing device with forward paper feeding of the present utility model;
[0029] Figure 2 It is a positional relationship diagram of the printing module and the humidifying component in the present utility model;
[0030] Figure 3 It is a schematic structural diagram of the first drying module in the present utility model;
[0031] Figure 4 It is a schematic structural diagram of the second drying module in the present utility model.
[0032] Parts and their numbers in the figure:
[0033] The first power component 1, the inclination adjustment component 2, the first drying module 3, the first oven 31, the second oven 32, the first tension detection component 4, the first vision detection component 5, the first printing module 6, the first humidifying component 7, the second power component 8, the second humidifying component 9, the second tension detection component 10, the second printing module 11, the second vision detection component 12, the second drying module 13, the third oven 131, the fourth oven 132, the third power component 14. Detailed Embodiments
[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. Moreover, the terms "include", "comprise", or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article, or device. Without further limitation, the elements defined by the statement "including..." do not exclude the existence of additional identical elements in the process, method, article, or device including the said elements. If there is no conflict, the embodiments of the present utility model and the various features in the embodiments can be combined with each other, and all are within the protection scope of the present utility model.
[0035] Embodiment 1
[0036] As Figure 1 shown, the present utility model provides a double-sided inkjet printing device with forward paper feeding. The double-sided inkjet printing device with forward paper feeding in this embodiment includes a first printing module 6, a second printing module 11, a first drying module 3, a second drying module 13, a first humidifying component 7, a second humidifying component 9, and a conveying mechanism.
[0037] Generally, the printing medium includes a first side and a second side, where the first side and the second side are two opposite sides of the printing medium, that is, one of the first side and the second side is the front side of the printing medium, and the other is the back side of the printing medium. In this embodiment, the first printing module 6 is first used to print the first side of the printing medium, and then the second printing module 11 is used to print the second side of the printing medium. That is, one printing module is used to print the front side of the printing medium, and the other printing module is used to print the back side of the printing medium, so as to achieve double-sided printing of the product.
[0038] As Figure 2As shown in the figure, the first humidifying component 7 is located at the paper inlet of the first printing module 6. The first humidifying component 7 is used to control the temperature and humidity of the first printing module 6 so that the temperature and humidity of the first printing module 6 are within the range that meets the printing requirements, thereby ensuring that the printing effect of the printing medium during the first-sided printing remains stable; the temperature and humidity of the first printing module 6 can be set according to the printing requirements.
[0039] The second humidifying component 9 is located at the paper inlet of the second printing module 11. The second humidifying component 9 is used to control the temperature and humidity of the second printing module 11 so that the temperature and humidity of the second printing module 11 are within the range that meets the printing requirements, thereby ensuring that the printing effect of the printing medium during the second-sided printing remains stable; the temperature and humidity of the second printing module 11 can also be set according to the printing requirements.
[0040] The first drying module 3 is located on the printing medium conveying path between the first printing module 6 and the second printing module 11. After the first side of the printing medium is printed by the first printing module 6, the printing medium is conveyed into the first drying module 3 for drying. After the first side is dried, the printing medium is then conveyed into the second printing module 11 for second-sided printing. In this way, the printing effect of the first side will not be affected by subsequent conveying links and printing processing links, thereby ensuring a good printing effect.
[0041] The second drying module 13 is located on the printing medium conveying path after the second printing module 11. After the second side of the printing medium is printed by the second printing module 11, the printing medium is conveyed into the second drying module 13 for drying. After the second side is dried, the printing medium is then conveyed to the next link. In this way, the printing effect of the second side will not be affected by subsequent conveying links and printing output links, thereby ensuring a good printing effect;
[0042] The conveying mechanism is used to convey the printing medium, so that the printing medium moves along a predetermined path, so that the printing medium passes through each processing link of the duplex inkjet printing device with forward paper feeding in the set process sequence, thereby completing the entire printing process;
[0043] In this embodiment, the printing medium sequentially passes through the first printing module 6, the first drying module 3, the second printing module 11, and the second drying module 13 under the conveyance of the conveying mechanism. The conveying mechanism includes a plurality of conveying rollers, and these conveying rollers are arranged along the conveying path of the printing medium.
[0044] In this embodiment, the printing medium conveying path of the conveying mechanism includes a printing medium conveying path that after being printed by the first printing module 6, the printing medium is conveyed around the outside of the first printing module 6 to the second printing module 11.
[0045] The first printing module 6 and the second printing module 11 are arranged opposite to each other, and the outer side of the first printing module 6 is the side where the first printing module 6 is far from the second printing module 11.
[0046] After the first module finishes printing in this embodiment, the paper path is reversed to feed the paper back, so that after the printing medium is printed on the first side and dried, it travels around the first printing module to the second printing module 11. Thus, without increasing the volume of the device, the cooling time is extended, and the printing medium can be reduced to the set temperature when entering the second printing module 11 for printing, effectively avoiding the influence of the heat on the nozzles in the second printing module 11, and enabling the printing device to maintain a stable and reliable printing effect.
[0047] In order to further increase the cooling time, in this embodiment, the printing medium conveying path can also be set such that after the printing medium is dried by the first drying module, it bypasses to the outer side of the first drying module, that is, the side where the first drying module is far from the second drying module for conveying.
[0048] In this embodiment, the conveying direction of the printing medium after being printed by the second printing module 11 is opposite to the conveying direction after being printed by the first printing module 6.
[0049] For example Figure 1 in, the printing medium is conveyed to the left side of the first printing module 6 after passing through the first printing module 6, while the printing medium is conveyed to the right side of the printing module after passing through the second printing module 11.
[0050] Since in this embodiment, after the first printing module 6 finishes printing, the paper is fed back in the direction away from the second printing module 11, which is the opposite direction to the paper feeding direction after the second printing module finishes printing. In this way, on the basis of increasing the cooling time, the internal layout of the forward paper feeding double-sided inkjet printing device can be made more compact, effectively reducing the length of the device and the floor area.
[0051] The forward paper feeding double-sided inkjet printing device of this embodiment further includes a first vision detection component 5, and the first vision detection component 5 is located on the printing medium conveying path between the first printing module 6 and the first drying module 3.
[0052] The first vision detection component 5 is used to inspect the printing result after the first printing module 6 finishes printing the first side of the printing medium and before the printing medium enters the first drying module 3 for drying. Under the conveyance of the conveying mechanism, after the printing medium finishes printing the first side, it is conveyed to the position where the first vision detection component 5 is located for detection, and then enters the first drying module 3 for drying after the detection. The first vision detection component 5 can be arranged on the outer side of the first printing module 6, while the first drying module 3 is arranged below the first vision detection component 5.
[0053] The double-sided inkjet printing device with forward paper feeding in this embodiment further includes a second vision detection component 12, and the second vision detection component 12 is located on the printing medium conveying path between the second printing module 11 and the second drying module 13.
[0054] The second vision detection component 12 is used to inspect the printing result after the second printing module 11 finishes printing the second side of the printing medium and before the printing medium enters the second drying module 13 for drying. Under the conveyance of the conveying mechanism, after the printing medium finishes printing the second side, it is conveyed to the position where the second vision detection component 12 is located for detection, and then enters the second drying module 13 for drying after the detection. The second vision detection component 12 can be arranged outside the second printing module 11, and the second drying module 13 is arranged below the second vision detection component 12.
[0055] In this embodiment, the conveying mechanism further includes a first power component 1, a second power component 8, and a third power component 14. The first power component 1 is located on the printing medium conveying path before the first printing module 6, the second power component 8 is located on the printing medium conveying path between the first printing module 6 and the second printing module 11, and the third power component 14 is located on the printing medium conveying path after the second drying module 13.
[0056] The first power component 1 is arranged at a position below the double-sided inkjet printing device with forward paper feeding and away from the second drying module 13. The first power component 1 can adopt a traction roller, and the first power component 1 is used to traction the printing medium to convey the printing medium in the direction of the first printing module 6.
[0057] The second power component 8 is used to control the tension of the printing medium between the first power component 1 and the second power component 8, and convey the printing medium to the downstream second printing module 11.
[0058] The third power component 14 is used to control the tension of the printing medium between the second power component 8 and the third power component 14, and convey the printing medium to the next unit.
[0059] The second power component 8 includes a first traction roller, and the first traction roller is a water-cooled traction roller. Since the second power component 8 adopts a water-cooled structure traction roller, the printing medium after the first side printing and drying can be immediately cooled during the printing medium conveying process, and the temperature of the printing medium can be quickly reduced.
[0060] In this embodiment, the third power assembly 14 includes a second traction roller, and the second traction roller is a water-cooled traction roller. Since the third power assembly 14 adopts a traction roller with a water-cooled structure, the printed medium after drying on the second side can be immediately cooled during the transportation of the printed medium, effectively preventing the dried printed medium from being stretched and deformed, which affects the tension in the subsequent process sections.
[0061] The printing device of this embodiment further includes an alignment adjustment assembly 2, and the alignment adjustment assembly 2 is used to adjust the movement trajectory of the printed medium, and the alignment adjustment assembly 2 is located on the path of the printed medium before passing through the first printing module 6.
[0062] Among them, the alignment adjustment assembly 2 is used to finely adjust the movement trajectory of the printed medium. Before the printed medium is transported to the first printing module 6, the deviation correction mechanism can be used to initially correct the transportation trajectory of the printed medium, and then pass through the alignment adjustment assembly 2. After the alignment adjustment assembly 2 finely adjusts the transportation trajectory of the printed medium more precisely, it enters the first printing module 6 for printing. This can reduce the fluctuations of the paper during the operation before entering the printing process, making the running trajectory of the paper more stable.
[0063] The double-sided inkjet printing device with forward paper feeding of this embodiment further includes a first tension detection member 4 and a second tension detection member 10.
[0064] The first tension detection member 4 is located on the transportation path of the printed medium between the first power assembly 1 and the first printing module 6. In this embodiment, the first tension detection member 4 is provided to detect the tension of the printed medium before entering the first printing module 6, and the detected tension can also be fed back to the second power assembly 8 for tension control.
[0065] In this embodiment, the second tension detection member 10 is provided to detect the tension of the printed medium before entering the second printing module 11 and feed it back to the third power assembly 14 for tension control.
[0066] As Figure 3 shown, in this embodiment, the first drying module 3 includes a symmetrically arranged first oven 31 and a second oven 32. The printed medium passes through the first oven 31 in the first direction and then folds back to the second direction, and passes through the second oven 32 in the second direction and then bypasses to the outside of the first oven 31. The second direction and the first direction are two opposite directions.
[0067] Adopting the foregoing method can make the paper path reverse once in the first drying module 3, thereby increasing the drying time of the printed medium in the first drying module 3, making the printed medium meet the drying time requirements, ensuring that the printed side before drying does not pass through the paper roller, and thus ensuring the printing effect.
[0068] AsFigure 4 As shown, in this embodiment, the second drying module 13 includes a symmetrically arranged third oven 131 and a fourth oven 132. The printing medium passes through the third oven 131 along the third direction and then folds back to the fourth direction, and passes through the fourth oven 132 along the fourth direction. The fourth direction and the third direction are two opposite directions.
[0069] By adopting the foregoing method, the paper path can be reversed once in the second drying module 13, thereby extending the drying time of the printing medium in the second drying module 13, enabling the printing medium to meet the drying time requirement, ensuring that the printed side does not pass through the paper feed roller before drying, and thus ensuring the printing quality.
[0070] In this embodiment, the printing medium enters the printing device from the lower part of the front-feed duplex inkjet printing device, and the printing medium is sent out from the lower part of the front-feed duplex inkjet printing device to the next process.
[0071] The printing medium enters from below the printing device, which can facilitate the docking of the printing device with the previous process, thereby reducing the difficulty of paper threading. The printing medium is sent out from below the printing device, which can facilitate the docking of the printing device with the next process, thereby reducing the difficulty of paper threading.
[0072] The process of duplex printing using the front-feed duplex inkjet printing device of this embodiment is as follows:
[0073] After being pulled by the first power assembly 1, the printing medium travels along a preset path, first reversely feeds paper to the left, and is conveyed to the first printing module 6 on the left side of the front-feed duplex inkjet printing device for the first-sided printing. Before the printing medium enters the first printing module 6, the first tension detection member 4 detects the tension of this section and feeds it back to the second power assembly 8 downstream of the first printing module 6, and the second power assembly 8 adjusts the tension of this section to make the tension stable.
[0074] Before the printing medium enters the first printing module 6, the running trajectory of the printing medium is finely adjusted twice by the alignment adjustment assembly 2 to reduce the fluctuation of the printing medium during the running before entering the printing.
[0075] After the first-sided printing is completed, the printing medium passes through the paper feed roller of the conveying mechanism and is inspected by the first vision detection assembly 5 after the first-sided printing is completed, and then enters the first drying module 3 in the lower left of the printing device for drying. Due to the drying time requirements of some printing media and the fact that the printed surface cannot pass through the paper feed roller before drying, the first drying module 3 of this embodiment is provided with two groups of symmetrically arranged ovens to reverse the paper path once and lengthen the drying time of the paper in the oven.
[0076] After the drying of the first side of the printing medium is completed, it travels again along a preset path, goes around the first printing module 6 to reach the position of the second power component 8, and is conveyed by the second power component 8 to the second printing module 11 on the right side of the printing device for printing the second side. Before the printing medium enters the second printing module 11, the second tension detection component 10 detects the tension of this section and feeds it back to the third power component 14 downstream of the second printing module 11, and the third power component 14 adjusts the tension of this section to make the tension stable.
[0077] Among them, the traction roller of the second power component 8 is designed with a water-cooling circuit structure, so that the printing medium is cooled by contacting the traction roller of the second power component 8 before entering the second printing module 11, and the temperature of the printing medium is quickly reduced.
[0078] Among them, the first humidifying component 7 and the second humidifying component 9 are arranged in the upper middle of the printing device, and are respectively located at the paper feeding ports of the first printing module 6 and the second printing module 11, and respectively control the ambient temperature and humidity of the two modules to ensure printing stability.
[0079] After the second-side printing is completed, the printing medium passes through the paper passing roller and is inspected by the second vision detection component 12 after the second-side printing is completed, and then enters the second drying module in the lower right of the printing device for drying.
[0080] The second drying module 13 is also provided with two groups of symmetric drying ovens, so that the paper path reverses once, and the drying time of the paper in the drying oven is lengthened. Finally, the printing medium is conveyed from the lower right of the printing device to the next unit through the third power component 14.
[0081] The above is only the specific implementation manner of the present utility model. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described systems, modules, and units can refer to the corresponding processes in the foregoing method embodiments, and will not be described herein again. It should be understood that the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present utility model.
[0082] The above is only the specific implementation manner of the present utility model. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described systems, modules, and units can refer to the corresponding processes in the foregoing method embodiments, and will not be described herein again. It should be understood that the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present utility model.
Claims
1. A duplex inkjet printing device with forward paper feeding, characterized in that, Comprising: A first printing module for printing on the first side of a printing medium; A second printing module for printing on the second side of the printing medium, the second side and the first side being opposite sides of the printing medium; A first drying module on the printing medium conveying path between the first printing module and the second printing module; A second drying module on the printing medium conveying path after the second printing module; A first humidifying component at the paper inlet of the first printing module; A second humidifying component at the paper inlet of the second printing module; A conveying mechanism for conveying the printing medium to move along a predetermined printing medium conveying path.
2. The duplex inkjet printing device with forward paper feeding according to claim 1, wherein, The printing medium conveying path of the conveying mechanism includes a printing medium conveying path that after being printed by the first printing module, is conveyed around the outside of the first printing module to the second printing module.
3. The duplex inkjet printing device with forward paper feeding according to claim 2, wherein The conveying direction of the printing medium after being printed by the second printing module is opposite to the conveying direction after being printed by the first printing module.
4. The duplex inkjet printing device with forward paper feeding according to claim 2, characterized in that, It further includes a first vision detection component, the first vision detection component being on the printing medium conveying path between the first printing module and the first drying module, and / or It further includes a second vision detection component, the second vision detection component being on the printing medium conveying path between the second printing module and the second drying module.
5. The duplex inkjet printing device with forward paper feeding according to claim 1, characterized in that, The conveying mechanism further includes a first power component, a second power component, and a third power component. The first power component is on the printing medium conveying path before the first printing module, the second power component is on the printing medium conveying path between the first printing module and the second printing module, and the third power component is on the printing medium conveying path after the second drying module.
6. The duplex inkjet printing device with forward paper feeding according to claim 5, characterized in that, The second power component includes a first traction roller, and the first traction roller is a water-cooled traction roller, and / or The third power component includes a second traction roller, and the second traction roller is a water-cooled traction roller.
7. The duplex inkjet printing device with forward paper feeding according to claim 5, characterized in that, It further includes a first tension detection piece and a second tension detection piece. The first tension detection piece is on the printing medium conveying path between the first power component and the first printing module, and the second tension detection piece is on the printing medium conveying path between the second power component and the second printing module.
8. The duplex inkjet printing device with forward paper feeding according to claim 1, wherein, It further includes an alignment adjustment component for adjusting the movement trajectory of the printing medium, and the alignment adjustment component is on the path before the printing medium passes through the first printing module.
9. The double-sided inkjet printing device with forward paper feeding according to claim 1, characterized in that, The first drying module includes a first drying oven and a second drying oven arranged symmetrically. The printing medium passes through the first drying oven along a first direction and then folds back to a second direction, and passes through the second drying oven along the second direction. The second direction and the first direction are two opposite directions, and / or The second drying module includes a third drying oven and a fourth drying oven arranged symmetrically. The printing medium passes through the third drying oven along a third direction and then folds back to a fourth direction, and passes through the fourth drying oven along the fourth direction. The fourth direction and the third direction are two opposite directions.
10. The double-sided inkjet printing device with forward paper feeding according to claim 9, characterized in that, The printing medium enters the printing device from the lower part of a front-feed duplex inkjet printing device, and / or The printing medium is sent out from the lower part of the front-feed duplex inkjet printing device to the next process.