High-ink-amount ink jet structure of printing machine and ink jet printing machine

By designing a high-ink-volume inkjet structure for a printing machine, the technical problem of inkjet printing machine printing effect depending on unstable inkjet pressure was solved. By using a printhead group with multiple printheads arranged in parallel to print multiple times on the same position of the substrate, the quality and uniformity of the printing area were achieved, the downtime caused by the failure of a single printhead was reduced, and the reliability of the equipment and the printing effect were improved.

CN223618452UActive Publication Date: 2025-12-02HANGZHOU HONGHUA DIGITAL TECH
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Patent Information

Application Number
CN202423293925.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-12-02
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

The printing effect of existing inkjet printers is highly dependent on inkjet pressure, which leads to unstable printing quality and makes it difficult to guarantee.

Method used

Design a high ink volume inkjet structure for a printing machine, including a printhead group composed of multiple printheads. Each printhead group is connected to the same ink cartridge. Multiple printhead groups arranged in parallel print multiple times on the same position of the substrate. Synchronous ink supply is achieved by using solenoid valves and diverter pipes. The staggered printhead groups improve the uniformity of printing. A cleaning mechanism is provided to ensure printhead cleanliness.

Benefits of technology

It improves the quality and uniformity of the printing area, reduces downtime caused by single printhead failure, enhances equipment reliability and ink utilization, and improves printing resolution and speed.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a printing machine high-ink-amount ink jet structure and an ink jet printing machine. The printing machine high-ink-amount ink jet structure comprises an ink jet assembly and an ink supply mechanism. The ink jet assembly comprises a plurality of nozzles, the nozzles are arranged in a first direction to form a plurality of nozzle groups, the plurality of nozzle groups are arranged in parallel and at intervals in the direction perpendicular to the first direction, and the nozzles in the plurality of nozzle groups are opposite in position; the ink supply mechanism comprises ink boxes used for storing ink, and the ink boxes are connected with the multiple nozzles in the nozzle set in a one-to-one mode. During jet printing, multiple times of jet printing can be carried out on the same position of the base material through the multiple spray head sets which are arranged side by side, so that the jet printing times of the same jet printing area are increased, the jet printing effect of the jet printing area is enhanced, and the jet printing quality of the jet printing area is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the technical field of inkjet printing equipment structure, and more specifically, to a high ink volume inkjet structure for a printing machine and an inkjet printing machine. Background Technology

[0002] An inkjet printer is a device that uses inkjet printing technology to print on textiles or other materials. It is widely used in clothing, home furnishings, advertising materials and other fields, and has the advantages of high efficiency, flexibility and environmental friendliness.

[0003] Inkjet printers spray ink into a substrate as tiny droplets through printheads. A printhead typically consists of multiple nozzles, each capable of precisely controlling the amount and location of ink sprayed. The substrate (such as fabric or paper) moves within the machine via a conveyor belt or roller system, ensuring the ink is evenly distributed in the desired areas. After inkjet printing, the substrate usually requires drying and curing to ensure the ink adheres firmly. This can be achieved through methods such as hot air drying, infrared heating, or ultraviolet curing.

[0004] In existing technologies, inkjet printers mostly store ink in ink cartridges. During inkjet printing, the ink stored in the cartridge is injected into the printhead by applying pressure inside the cartridge, so that the ink can be printed onto the substrate. However, the printing effect of inkjet printers is highly dependent on inkjet pressure, the printing effect is unstable, and the printing quality is difficult to guarantee. Utility Model Content

[0005] The purpose of this invention is to provide a high ink volume inkjet structure and inkjet printer for printing machines, so as to alleviate the technical problems in the prior art where the printing effect of inkjet printers is extremely dependent on inkjet pressure, the printing effect is unstable, and the printing quality is difficult to guarantee.

[0006] This utility model provides a high ink volume inkjet structure for a printing machine, including: an inkjet assembly and an ink supply mechanism; the inkjet assembly includes multiple printheads, the multiple printheads are arranged in a first direction to form a printhead group, there are multiple printhead groups, the multiple printhead groups are arranged parallel and spaced apart perpendicular to the first direction, and the positions of each printhead in the multiple printhead groups are relative; the ink supply mechanism includes an ink cartridge for storing ink, the ink cartridge is connected to each of the multiple printheads in the printhead group.

[0007] Furthermore, the high ink volume inkjet structure of the printing machine also includes a conveying assembly; the conveying assembly includes multiple solenoid valves, which are respectively located at the connection between the ink cartridge and the multiple printheads.

[0008] Furthermore, the delivery assembly also includes a diverter tube; one end of the diverter tube is connected to the ink cartridge via the solenoid valve, and the other end of the diverter tube has a multi-tube structure and is respectively connected to a plurality of printheads arranged in parallel.

[0009] Furthermore, every two adjacent printhead groups form an inkjet zone; each printhead in an inkjet zone is connected to a corresponding ink cartridge; there are multiple ink cartridges, and each ink cartridge is arranged in a one-to-one correspondence with a multiple inkjet zone, with the multiple inkjet zones spaced apart along a direction perpendicular to the first direction.

[0010] Furthermore, the plurality of inkjet zones are staggered and alternately arranged along a direction perpendicular to the first direction.

[0011] Furthermore, the high ink volume inkjet printing assembly of the printing machine also includes a displacement mechanism; the displacement mechanism includes a first driving component, the driving direction of the first driving component is horizontal and perpendicular to the first direction, and the moving end of the first driving component is connected to the inkjet assembly in a transmission connection.

[0012] Furthermore, the high ink volume inkjet structure of the printing machine also includes a cleaning mechanism disposed on one side of the inkjet assembly along the first direction; the cleaning mechanism includes a plurality of cleaning units, which are arranged along the first direction and correspond one-to-one with the plurality of printheads; the displacement mechanism also includes a second driving component, the driving direction of the second driving component is the same as the first direction, and the second driving component is connected to the inkjet assembly in a transmission manner.

[0013] Furthermore, the plurality of cleaning units arranged along the first direction form a cleaning group; there are multiple cleaning groups, and the multiple cleaning groups are staggered along the perpendicular first direction.

[0014] Furthermore, the cleaning group consists of two units, namely a first unit group and a second unit group; each cleaning unit in the second unit group is positioned opposite to the gap between two adjacent cleaning units in the first unit group; the length of each cleaning unit is greater than the length of the gap between two adjacent cleaning units.

[0015] The purpose of this utility model is also to provide an inkjet printer, including a high ink volume inkjet structure for the printer.

[0016] Beneficial effects:

[0017] The high ink volume inkjet structure of the printing machine provided in this embodiment includes an inkjet assembly and an ink supply mechanism; the inkjet assembly includes multiple printheads, which are arranged in a first direction to form a printhead group. There are multiple printhead groups, which are arranged parallel and spaced apart perpendicular to the first direction, and the positions of each printhead in the multiple printhead groups are relative; the ink supply mechanism includes an ink cartridge for storing ink, and the ink cartridge is connected to each of the multiple printheads in the printhead group.

[0018] Specifically, in this invention, multiple printheads are spaced apart along the same direction to form a printhead group. The multiple printhead groups are arranged side by side and connected to the same ink cartridge, so that the ink cartridge can simultaneously supply ink to multiple printhead groups. This ensures that the multiple printhead groups arranged side by side and connected to the same ink cartridge use the same ink. Under this structure, during printing, the same position on the substrate can be printed multiple times by the multiple printhead groups arranged side by side, thereby increasing the number of times the same printing area is printed, enhancing the printing effect of the printing area, and thus ensuring the printing quality of the printing area. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the inkjet structure of a printing machine provided in an embodiment of the present utility model;

[0021] Figure 2 A schematic diagram showing the distribution of multiple printheads in the inkjet structure of a printing machine provided in an embodiment of this utility model;

[0022] Figure 3 This is a schematic diagram showing the distribution of multiple cleaning units in the inkjet structure of a printing machine provided in an embodiment of the present invention.

[0023] icon:

[0024] 100 – Inkjet assembly; 110 – Printhead; 200 – Ink supply mechanism; 300 – Transport assembly; 310 – Solenoid valve; 320 – Diverter tube; 400 – Cleaning mechanism; 410 – Cleaning unit. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0032] See Figures 1 to 3 The high ink volume inkjet structure of the printing machine provided in this embodiment includes an inkjet assembly 100 and an ink supply mechanism 200.

[0033] The inkjet assembly 100 includes multiple printheads 110, which are arranged along a first direction to form a printhead group 110. There are multiple printhead groups 110, which are parallel and spaced apart along a direction perpendicular to the first direction, with each printhead 110 within a group positioned relative to the others. The ink supply mechanism 200 includes ink cartridges for storing ink, and each ink cartridge is connected to one of the printheads 110 within a printhead group 110.

[0034] Specifically, in this embodiment, multiple printheads 110 are arranged at intervals along the same direction to form a printhead 110 group. After the multiple printhead 110 groups are arranged side by side, they are connected to the same ink cartridge so that the ink cartridge can simultaneously supply ink to multiple printhead 110 groups, and the ink used by the multiple printhead 110 groups arranged side by side and connected to the same ink cartridge is the same ink.

[0035] In this structure, during printing, multiple sets of 110 printheads arranged in parallel can print multiple times on the same position of the substrate, thereby increasing the number of prints on the same printing area, enhancing the printing effect of the printing area, and thus ensuring the printing quality of the printing area.

[0036] Furthermore, during the printing process, even if one printhead 110 malfunctions, the other printheads 110 can still continue to work. The printheads 110 in the parallel printhead group that are opposite the position of the malfunctioning printhead 110 can still print on the printing area, reducing the downtime of the entire machine caused by the failure of a single printhead 110.

[0037] In this embodiment, the high ink volume inkjet structure of the printing machine also includes a conveying assembly 300. The conveying assembly 300 includes multiple solenoid valves 310, which are respectively located at the connection between the ink cartridge and multiple printheads 110.

[0038] Solenoid valve 310 is located at the connection between the ink cartridge and the printhead 110, thereby controlling the ink filling process. Solenoid valve 310 is a valve that uses electromagnetic principles to control fluid flow, featuring fast response, high reliability, and high precision. A controller can be connected to solenoid valve 310 to achieve synchronous control, ensuring optimal printing results.

[0039] In this embodiment, the delivery assembly 300 further includes a diverter pipe 320. One end of the diverter pipe 320 is connected to the ink cartridge via a solenoid valve 310, and the other end of the diverter pipe 320 has a multi-tube structure and is connected to multiple printheads 110 arranged in parallel.

[0040] Specifically, in this embodiment, one end of the diverter pipe 320 is connected to the ink cartridge of the ink storage assembly, and the control valve is set at the connection between the diverter pipe 320 and the ink cartridge. The multi-tube structure at the other end of the diverter pipe 320 is connected to multiple printheads 110 arranged in parallel, thereby realizing the simultaneous ink supply to multiple printheads 110 through a single diverter pipe 320, and enabling the synchronous ink injection action of the printheads 110 arranged in parallel.

[0041] In this embodiment, every two adjacent printheads 110 form an inkjet zone. Each printhead 110 in an inkjet zone is connected to a corresponding ink cartridge. There are multiple ink cartridges, and each ink cartridge is correspondingly arranged with multiple inkjet zones, which are spaced apart along a direction perpendicular to the first direction.

[0042] Furthermore, in this embodiment, the number of nozzles in the multi-tube structure of the diversion tube 320 is the same as the number of printhead 110 groups in an inkjet zone, and the number of liquid supply tubes connected to each ink cartridge is the same as the number of printheads 110 in a printhead 110 group.

[0043] In this structure, multiple shunt tubes 320 are spaced apart along the length of the ink cartridge and connected to the ink cartridge, so that the ink cartridge can be connected to the corresponding printheads 110 in the inkjet area.

[0044] In this embodiment, multiple inkjet zones are staggered and alternately arranged along a direction perpendicular to the first direction.

[0045] Specifically, in the structure where multiple inkjet zones are staggered and alternately arranged, the printheads 110 in any two adjacent inkjet zones are also staggered. This structure can reduce the striping effect caused by uneven jetting from a single printhead 110, making the printed pattern more uniform and delicate. Furthermore, multiple printheads 110 can cover more inkjet dots, improving printing resolution and making the pattern clearer and more detailed.

[0046] In addition, the staggered arrangement of multiple printheads 110 can improve printing speed, enhance equipment reliability, and improve ink utilization.

[0047] In this embodiment, the high ink volume inkjet printer further includes a displacement mechanism. The displacement mechanism includes a first driving component, the driving direction of which is horizontal and perpendicular to the first direction, and the moving end of the first driving component is connected to the inkjet assembly 100 for transmission.

[0048] Specifically, the first driving component can drive the inkjet component 100 to move along the arrangement direction of multiple inkjet zones, so that multiple inkjet groups in the same inkjet zone arranged in parallel can perform multiple inkjet operations on the same area, thereby improving the printing effect of the printing area and ensuring the printing quality of the printing area.

[0049] In this embodiment, the high ink volume inkjet structure of the printing machine further includes a cleaning mechanism 400 disposed on one side of the inkjet assembly 100 along the first direction. The cleaning mechanism 400 includes a plurality of cleaning units 410, which are arranged along the first direction and correspond one-to-one with a plurality of printheads 110. The displacement mechanism further includes a second driving component, the driving direction of which is the same as the first direction, and the second driving component is connected to the inkjet assembly 100 in a transmission manner.

[0050] Specifically, in this embodiment, the cleaning unit 410 of the cleaning mechanism 400 is positioned opposite to each printhead 110 of the inkjet assembly 100, and the second driving component can drive the inkjet assembly 100 to move along the first direction, while the cleaning mechanism 400 is disposed on one side of the inkjet assembly 100 along the first direction.

[0051] In this structure, the second drive component can drive the inkjet assembly 100 to move toward the cleaning mechanism 400, so that the printhead 110 of the inkjet assembly 100 comes into contact with the cleaning unit 410 of the cleaning mechanism 400 one by one, thereby realizing the cleaning of each printhead 110 in the inkjet assembly 100.

[0052] In this embodiment, a plurality of cleaning units 410 arranged along the first direction form a cleaning group. There are multiple cleaning groups, and the multiple cleaning groups are staggered along the perpendicular first direction.

[0053] Specifically, in this application, multiple inkjet zones are staggered and alternately arranged. In order to enable the cleaning component to achieve comprehensive cleaning of all printheads 110 in all inkjet zones, the multiple cleaning groups in this embodiment are staggered along the arrangement direction of the multiple inkjet zones, that is, staggered perpendicular to the first direction, so as to achieve cleaning of all printheads 110 in each inkjet zone.

[0054] In this embodiment, there are two cleaning groups, namely a first unit group and a second unit group. Each cleaning unit 410 in the second unit group is positioned opposite the gap between two adjacent cleaning units 410 in the first unit group. The length of each cleaning unit 410 is greater than the length of the gap between two adjacent cleaning units 410.

[0055] Specifically, in this embodiment, there is a gap between two adjacent cleaning units 410 in the first unit group. After cleaning the inkjet assembly 100, cleaning fluid is easily retained at the gap between the inkjet assembly 100 and the two cleaning units 410, resulting in cleaning fluid residue on the inkjet assembly 100 and affecting the printing effect of the next printing. The cleaning units 410 in the second unit group are positioned opposite to the two adjacent cleaning units 410 in the first unit group. The length of each cleaning unit 410 is greater than the length of the gap between two adjacent cleaning units 410. With this structure, the cleaning units 410 in the second unit group can clean the gap between the inkjet assembly 100 and the two cleaning units 410 again, thereby removing the cleaning fluid remaining on the inkjet assembly 100 after cleaning in the first unit group.

[0056] The inkjet printer provided in this embodiment includes the high ink volume inkjet structure of the printer described above.

[0057] Specifically, the high-volume inkjet structure of the printing machine includes an inkjet assembly 100 and an ink supply mechanism 200. The inkjet assembly 100 includes multiple printheads 110, arranged along a first direction to form a printhead group 110. Multiple printhead groups 110 are arranged parallel and spaced apart along a direction perpendicular to the first direction, with each printhead 110 within a group positioned relative to the others. The ink supply mechanism 200 includes an ink cartridge for storing ink, with each cartridge corresponding to one of the printheads 110 within a printhead group 110. Specifically, in this embodiment, multiple printheads 110 are spaced apart along the same direction to form printhead groups 110. These printhead groups 110 are arranged side-by-side and connected to the same ink cartridge, enabling the ink cartridge to simultaneously supply ink to multiple printhead groups 110, ensuring that the ink used by the multiple printhead groups 110 arranged side-by-side and connected to the same ink cartridge is the same ink. In this structure, during printing, multiple printheads 110 arranged in parallel can print multiple times on the same position of the substrate, thereby increasing the number of prints on the same printing area, enhancing the printing effect of that area, and thus ensuring the printing quality of the printing area. Furthermore, even if one printhead 110 malfunctions during printing, the other printheads 110 can continue to operate. The printheads 110 in the parallel-arranged printhead group opposite the malfunctioning printhead 110 can still print on the printing area, reducing downtime caused by the failure of a single printhead 110.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high ink volume inkjet structure for a printing machine, characterized in that, include: Inkjet assembly (100) and ink supply mechanism (200); The inkjet assembly (100) includes a plurality of printheads (110), which are arranged in a first direction to form a printhead (110) group. There are multiple printhead (110) groups, which are arranged parallel and spaced apart in a direction perpendicular to the first direction, and the positions of each printhead (110) in the multiple printhead (110) groups are relative to each other. The ink supply mechanism (200) includes an ink cartridge for storing ink, the ink cartridge being connected one by one to a plurality of the printheads (110) in the printhead (110) group.

2. The high ink volume inkjet structure for a printing machine according to claim 1, characterized in that, The high ink volume inkjet structure of the printing machine also includes a conveying assembly (300); The delivery assembly (300) includes a plurality of solenoid valves (310), which are respectively located at the connection between the ink cartridge and the plurality of printheads (110).

3. The high ink volume inkjet structure for a printing machine according to claim 2, characterized in that, The conveying assembly (300) also includes a diverter pipe (320); One end of the diverter tube (320) is connected to the ink cartridge via the solenoid valve (310), and the other end of the diverter tube (320) has a multi-tube structure and is connected to a plurality of printheads (110) arranged in parallel.

4. The high ink volume inkjet structure for a printing machine according to claim 1, characterized in that, Each pair of adjacent printheads (110) forms an inkjet zone; Each printhead (110) in the inkjet area is correspondingly connected to one of the ink cartridges; There are multiple ink cartridges, and each ink cartridge is arranged in a one-to-one correspondence with a multiple inkjet zones. The multiple inkjet zones are spaced apart along a direction perpendicular to the first direction.

5. The high ink volume inkjet structure for a printing machine according to claim 4, characterized in that, The multiple inkjet zones are staggered and alternately arranged along a direction perpendicular to the first direction.

6. The high ink volume inkjet structure for a printing machine according to claim 5, characterized in that, The high ink volume inkjet printing machine also includes a displacement mechanism; The displacement mechanism includes a first driving component, the driving direction of the first driving component is horizontal and perpendicular to the first direction, and the moving end of the first driving component is connected to the inkjet component (100) for transmission.

7. The high ink volume inkjet structure for a printing machine according to claim 6, characterized in that, The high ink volume inkjet structure of the printing machine also includes a cleaning mechanism (400) disposed on one side of the inkjet assembly (100) along the first direction; The cleaning mechanism (400) includes a plurality of cleaning units (410), which are arranged along the first direction and correspond one-to-one with the plurality of nozzles (110); The displacement mechanism further includes a second driving component, the driving direction of which is the same as that of the first direction, and the second driving component is connected to the inkjet assembly (100) in a transmission connection.

8. The high ink volume inkjet structure for a printing machine according to claim 7, characterized in that, The plurality of cleaning units (410) arranged along the first direction form a cleaning group; There are multiple cleaning groups, and the multiple cleaning groups are staggered along the perpendicular first direction.

9. The high ink volume inkjet structure for a printing machine according to claim 8, characterized in that, The cleaning group consists of two units, namely the first unit group and the second unit group. Each of the cleaning units (410) in the second unit group is positioned opposite to the gap between two adjacent cleaning units (410) in the first unit group; The length of the cleaning unit (410) is greater than the length of the gap between two adjacent cleaning units (410).

10. An inkjet printing machine, characterized in that, The high ink volume inkjet structure of the printing machine as described in any one of claims 1-9 is included.