Intelligent digital high-speed inkjet printing process

Abstract

The application discloses an intelligent digital high-speed inkjet printing process and relates to the field of inkjet printing.The process comprises a Y-direction conveying mechanism, an ink supply mechanism, a negative pressure supply mechanism and a power distribution system.A main beam and a slave beam are horizontally installed on the upper end surface of the Y-direction conveying mechanism.A jet vehicle mechanism for high-speed inkjet printing of textiles is arranged on the main beam and the slave beam.The jet vehicle mechanism comprises a jet vehicle main box and a mounting plate.A connecting mechanism for ensuring the movement stability of the jet vehicle mechanism is arranged between the mounting plate and the main beam and the slave beam.The process is innovatively designed by means of magnetic suspension driving, large-capacity nozzle layout, intelligent anti-collision and recycling systems and the like, and solves the core pain points of traditional inkjet printing in the aspects of efficiency, precision, environmental protection and maintenance cost, thereby providing an intelligent solution with high productivity, high precision and low pollution for the textile printing industry, and being especially suitable for industrial production requirements of large quantities and complex patterns such as carpets and advertising cloth.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of inkjet printing, in particular to an intelligent digital high-speed inkjet printing process. BACKGROUND

[0002] Industrial inkjet printing is a high-efficiency and environmentally friendly printing process based on digital technology, widely used in textile, advertising, packaging and other fields. Its core is to realize high-speed and continuous printing of complex patterns through high-precision equipment and intelligent control system, and meet the demand of mass production.

[0003] We found that traditional digital inkjet printing is limited by mechanical guide rail driving, and the printing speed is usually lower than 0.5 m / s. The single processing width is insufficient, and it cannot handle large-span textile materials. Only some small-scale textile fabrics can be processed. Some existing digital inkjet printing for large processing width has high requirements for the moving precision of inkjet during processing due to the long distance across and the reciprocating movement of inkjet process. When dealing with some complex patterns, the processing speed will decrease significantly, resulting in low efficiency, and it is difficult to realize high-speed processing. Moreover, it is easy to cause processing errors and reduce product quality, making it difficult to process some complex patterns in high-speed inkjet printing. SUMMARY

[0004] The purpose of the present application is to provide an intelligent digital high-speed inkjet printing process to realize high-speed, high-precision, environmentally friendly and efficient digital inkjet printing to solve the problems raised in the background art.

[0005] To achieve the above purpose, the present application provides the following technical scheme: an intelligent digital high-speed inkjet printing process, comprising a Y-direction conveying mechanism, an ink supply mechanism, a negative pressure supply mechanism and a power distribution system. The upper end surface of the Y-direction conveying mechanism is transversely installed with a main beam and a slave beam. The main beam and the slave beam are provided with a printing car mechanism for high-speed inkjet printing of textiles. The printing car mechanism comprises a printing car main box. The left and right sides of the printing car main box are respectively provided with mounting plates. The mounting plates, the main beam and the slave beam are provided with a connecting mechanism for ensuring the stability of the movement of the printing car mechanism. The bottom of the printing car main box is provided with a nozzle mounting plate. The nozzle mounting plate is provided with a plurality of nozzle mounting holes. Each nozzle mounting hole is provided with a nozzle. The front end surface of the printing car main box is provided with a recovery part for recovering floating ink particles during inkjet process. The front end surface of the recovery part is fixedly provided with a nozzle anti-collision assembly for avoiding collision of the inkjet nozzle.

[0006] As preferred, the connecting mechanism comprises a base, an optical shaft and a fixed end, the optical shaft is slidingly installed in a circular hole of the base, the fixed end is arranged on the mounting plate, and the optical shaft is fixedly installed in a circular hole of the fixed end.

[0007] As preferred, the inside of the recovery piece is hollowly installed with filter cotton, a vacuum cavity is created by the negative pressure supply mechanism, and an open slot is arranged at the bottom of the recovery piece. The filter cotton is surrounded by a vacuum to generate suction, so that ink particles floating in the surrounding air are adsorbed on the filter cotton through the open slot.

[0008] As preferred, the nozzle anti-collision assembly comprises an anti-collision grid and a limit switch, the anti-collision grid is fixedly installed on the front end face of the recovery piece, and the limit switch is installed on the left and right sides of the upper end of the anti-collision grid. The safety distance sensing of the limit switch and the physical protection of the anti-collision grid form double protection for the nozzle.

[0009] As preferred, the nozzle mounting plate is arranged in a left-right splicing manner, and is fixedly connected through a splicing plate. Adjacent and side-by-side nozzle mounting holes are arranged in a staggered distribution.

[0010] As preferred, the main beam and the slave beam are respectively provided with a magnetic levitation motion mechanism. The magnetic levitation motion mechanism controls and drives the movement of the spraying vehicle mechanism to provide accurate and stable power output for the spraying vehicle mechanism. The magnetic levitation motion mechanism comprises a linear guide rail and a magnetic levitation motor. The bottom of the base is provided with a sliding bottom plate. The bottom of the sliding bottom plate is connected to the linear guide rail through a sliding block.

[0011] As preferred, the main beam and the slave beam are respectively provided with a magnetic levitation motion mechanism. The magnetic levitation motion mechanism controls and drives the movement of the spraying vehicle mechanism to provide accurate and stable power output for the spraying vehicle mechanism. The magnetic levitation motion mechanism comprises a linear guide rail and a magnetic levitation motor. The bottom of the base is provided with a sliding bottom plate. The bottom of the sliding bottom plate is connected to the linear guide rail through a sliding block.

[0012] As preferred, the optical shaft and the circular holes of the base and the fixed end have a gap therebetween, and the gap is arranged at an interval of 0.015-0.025mm, preferably 0.02mm.

[0013] As preferred, the main beam and the upper side of the slave beam are provided with a device safety shield.

[0014] As preferred, the front end surface of the recycling member is fixedly provided with a rubber blocking part.

[0015] In summary, the present application has the following advantages:

[0016] The present application solves the core pain points of traditional inkjet printing in efficiency, precision, environmental protection and maintenance cost through innovative design of magnetic suspension driving, large-capacity nozzle layout, intelligent anti-collision and recycling system, and provides an intelligent solution with high productivity, high precision and low pollution for the textile printing industry, especially suitable for industrial production of large quantities and complex patterns such as carpets and advertising cloth. In order to cope with large-span textiles in industrial production, the main beam adopts a double-beam bridge structure design to provide a stable hardware operation basis for the super-large head frame of multiple nozzles. In order to cope with the parallelism between the double beams, a connection mechanism design with one end fixed and the other end movable is adopted at the connection between the inkjet mechanism and the double beams, which reduces the assembly precision requirements for the parallelism and straightness between the main beam and the slave beam, thereby improving the equipment assembly efficiency and reducing the assembly difficulty under the premise of ensuring the equipment precision. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description only constitute some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0018] Figure 1 It is an overall structure schematic diagram of the intelligent digital high-speed inkjet printing process of the present application.

[0019] Figure 2 It is another perspective structure schematic diagram of the intelligent digital high-speed inkjet printing process of the present application.

[0020] Figure 3 It is a structure schematic diagram of the intelligent digital high-speed inkjet printing process of the present application without safety shield.

[0021] Figure 4 It is an installation structure schematic diagram of the connection mechanism in the intelligent digital high-speed inkjet printing process of the present application.

[0022] Figure 5 It is a structure schematic diagram of the connection mechanism in the intelligent digital high-speed inkjet printing process of the present application.

[0023] Figure 6It is a structure schematic view of a spraying vehicle mechanism in an intelligent digital high-speed inkjet printing process of the application;

[0024] Figure 7 It is a front view structure schematic view of the spraying vehicle mechanism in the intelligent digital high-speed inkjet printing process of the application;

[0025] Figure 8 It is a structure schematic view of a recycling part in the intelligent digital high-speed inkjet printing process of the application;

[0026] Figure 9 It is a structure schematic view of a nozzle mounting plate in the intelligent digital high-speed inkjet printing process of the application;

[0027] Figure 10 It is a structure schematic view of a nozzle anti-collision assembly in the intelligent digital high-speed inkjet printing process of the application;

[0028] Figure 11 It is a structure schematic view of a nozzle maintenance mechanism in the intelligent digital high-speed inkjet printing process of the application;

[0029] Figure 12 It is a bottom view structure schematic view of the nozzle maintenance mechanism in the intelligent digital high-speed inkjet printing process of the application.

[0030] The marks in the drawings are described as follows: Y-direction conveying mechanism 1; base 2; ink supply mechanism 3; negative pressure supply mechanism 4; power distribution system 5; nozzle maintenance mechanism 6; computer end 7; equipment safety protection cover 8; spraying vehicle mechanism 9; main beam 10; slave beam 11; magnetic levitation movement mechanism 12; connecting mechanism 201; base 211; optical axis 212; fixed end 213; ink supply groove 601; crosspiece 602; connecting part 603; sliding block 604; ink scraping plate 605; lead screw movement mechanism 606; lead screw driving plate 607; spraying vehicle main machine box 901; mounting plate 902; nozzle mounting plate 904; nozzle mounting hole 905; nozzle anti-collision assembly 906; recycling part 907; rubber blocking part 908; open slot 909; nozzle 910; anti-collision grid 916; limit switch 926. DETAILED DESCRIPTION

[0031] The application will be described in further detail with reference to the drawings, obviously, the described embodiments are only some of the embodiments of the application, but not all the embodiments, based on the embodiments in the application, all the other embodiments obtained by those skilled in the art without creative labor fall into the protection scope of the application, these drawings are all simplified schematic views, only schematically show the basic structure of the application, thus only show the relevant constitution of the application.

[0032] For the purpose of promoting an understanding of the application, the application will now be described in more detail with reference to the attached drawings, given herein by way of illustration and no limitation, wherein:

[0033] All of the features disclosed in this specification, and / or all of the steps of any method or process so disclosed, can be combined in any combination, except combinations where at least some of such features and / or steps are mutually exclusive.

[0034] Any feature in the present specification, unless expressly stated to the contrary, is intended to be an alternative, or in addition to, any of the features described elsewhere in the specification. That is, each feature is one of a number of alternative or additional features that can be implemented in any combination.

[0035] In the present application, unless otherwise expressly specified and limited, the terms "install", "connect", "connect", "fix", and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can be direct connection, can also be indirect connection through intermediate medium, can be internal communication of at least two elements or interaction relationship between at least two elements, unless otherwise expressly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] The application will now be described in more detail with reference to the following examples: Figures 1-12To make a detailed description of the present application, the present application provides an embodiment: a kind of intelligent digital high-speed inkjet printing process, including Y direction conveying mechanism 1, ink supply mechanism 3, negative pressure supply mechanism 4 and distribution system 5, wherein the Y direction conveying mechanism 1 is supported by base 2, and textile that needs to be ink-jetted needs to be pretreated, and the textile after pretreatment is transmitted by Y direction conveying mechanism 1, and main beam 10 and beam 11 are installed on the upper end surface of the Y direction conveying mechanism 1, which are perpendicular to the Y direction conveying mechanism 1, the main beam 10 and the beam 11 are provided with ink car mechanism 9 for high-speed inkjet printing of textile, and the main beam 10 and the beam 11 are the main support of the ink car mechanism 9, which supports the ink car mechanism 9 to move at a speed of 1 meter per second in horizontal direction, and the main beam 10 and the beam 11 are respectively provided with magnetic levitation movement mechanism 12, the magnetic levitation movement mechanism 12 includes linear guide and magnetic levitation motor, the bottom of the base 211 is provided with sliding bottom plate, the bottom of the sliding bottom plate is connected to the linear guide through the sliding block, the magnetic levitation movement mechanism 12 is controlled to drive the ink car mechanism 9 to move, and the ink car mechanism 9 is provided with accurate and stable power output, it should be noted that the ink car mechanism 9 includes ink car main machine box 901, the left and right sides of the ink car main machine box 901 are respectively provided with mounting plate 902, the mounting plate 902 and the main beam 10 and the beam 11 are provided with connecting mechanism 201 for ensuring the stability of the movement of the ink car mechanism 9, the bottom of the ink car main machine box 901 is provided with nozzle mounting plate 904, a plurality of nozzle mounting holes 905 are arranged in the nozzle mounting plate 904, here we set 96, each of the nozzle mounting holes 905 is respectively provided with nozzle 910, so the maximum can accommodate 96 nozzle capacity, the front end surface of the ink car main machine box 901 is provided with recovery part 907 for recovering ink particles during inkjet process, the front end surface of the recovery part 907 is fixedly provided with nozzle anti-collision assembly 906 for avoiding collision of inkjet nozzle, the main beam 10 and the beam 11 are also provided with nozzle maintenance mechanism 6 for nozzle maintenance, the pattern that needs to be ink-jetted is set through computer end 7, the ink supply mechanism 3 provides ink for inkjet, the computer end 7 controls the magnetic levitation movement mechanism 12 to move, and controls the ink car mechanism 9 to inkjet at high speed.

[0037] It should be noted that in the embodiment, the nozzle mounting plate 904 is assembled by two identical bottom plates through splicing plate, the nozzle mounting holes 905 between adjacent and side by side are arranged in staggered distribution, the splicing precision is 0.01 mm, the spliced nozzle mounting plate solves the difficulty of overall processing of bottom plate, simplifies the processing technology, reduces the production cost under the premise of ensuring the accuracy, this bottom plate can install 96 nozzles, in the case of printing width 4.2 meters, the production capacity can reach 10 meters / minute.

[0038] It is worth mentioning that in the embodiment, the connecting mechanism 201 comprises a base 211, an optical shaft 212 and a fixed end 213, the optical shaft 212 is slidingly installed in the round hole of the base 211, the fixed end 213 is arranged on the mounting plate 902, the optical shaft 212 is fixedly installed in the round hole of the fixed end 213 through the mounting plate 902, and a gap is left between the optical shaft 212 and the round holes of the base 211 and the fixed end 213, the gap is arranged at 0.015-0.025 mm, preferably 0.02 mm, so that the optical shaft can freely stretch and shrink in the base while meeting the required accuracy, the connecting mechanism 201 is the connecting mechanism between the vehicle spraying mechanism 9 and the main beam 10 and the slave beam 11, two connecting mechanisms 201 are respectively installed on the left and right sides, the optical shaft 212 near the end of the main beam 10 is fixed by a top wire, and the optical shaft 212 at the end of the slave beam 11 is in a floating state, so that the assembly accuracy requirements of the parallelism and straightness between the main beam and the slave beam are reduced, so that the equipment assembly efficiency is improved and the assembly difficulty is reduced under the premise of ensuring the equipment accuracy, because the equipment is mainly used for inkjet processing of large textiles, the span distance of the main beam 10 and the slave beam 11 is long, and in order to ensure the high accuracy of inkjet processing, the parallelism between the main beam 10 and the slave beam 11 is required to be high, and the connecting mechanism 201 designed by fixing one end and floating the other end can reduce the assembly accuracy requirements of the parallelism and straightness between the main beam and the slave beam.

[0039] It is also worth mentioning that in the embodiment, filter cotton is installed in the hollow inside of the recovery part 907, and a vacuum cavity is created by the negative pressure supply mechanism 4, an open slot 909 is arranged at the bottom of the recovery part 907, the filter cotton around is sucked by the vacuum, so that the ink particles floating in the surrounding air are adsorbed on the filter cotton through the open slot 909, the ink particles are prevented from diffusing to the workshop air or the ground, the working environment is improved, and the design is especially suitable for textile or carpet printing scenes with high environmental protection requirements, if the floating ink particles are not recovered in time, the ink particles may be attached to the nozzle, causing blockage or uneven inkjet, the risk of nozzle blockage is reduced by adsorption recovery, the service life of the nozzle is prolonged, and the printing accuracy is ensured: color difference or pattern defects caused by ink particles are avoided, the rubber stop 908 is fixedly installed at the front end face of the recovery part 907 and can be used as a buffer protection, the design not only solves the problems of low ink recovery efficiency and easy damage of equipment in traditional inkjet printing, but also improves the environmental protection, stability and economy of the equipment through the intelligent negative pressure system and the modular structure.

[0040] It should be noted that in the present embodiment, the nozzle anti-collision assembly 906 includes an anti-collision grid 916 and a limit switch 926, the anti-collision grid 916 is fixedly installed on the front end face of the recovery member 907, and the limit switch 926 is installed on the left and right sides of the upper end of the anti-collision grid 916. The safety distance sensing of the limit switch 926 and the physical protection of the anti-collision grid 916 form double protection for the nozzle. The anti-collision grid is fixedly installed on the front end face of the recovery member as the first physical barrier, which can directly block the contact between external objects (such as textile edges, foreign matters, etc.) and the nozzle. Even if the spray vehicle mechanism moves at high speed and deviates or collides, the anti-collision grid can absorb most of the impact force to avoid direct impact and damage to the nozzle. The limit switch is installed on the left and right sides of the upper end of the anti-collision grid. By sensing the safety distance, potential collision risks can be detected in advance. When the nozzle approaches an obstacle (such as mistakenly entering a non-printing area), the limit switch immediately triggers a signal to stop the spray vehicle mechanism or adjust the position of the nozzle through the control system (such as the Jet Intelligent Control System) to avoid collision.

[0041] In addition, in one embodiment, with reference to Figure 11 With Figure 12 , the nozzle maintenance mechanism 6 includes a waste ink tank 601, the left and right ends of which are respectively fixedly installed with connecting parts 603. One side of the connecting part 603 is fixedly connected to the main beam 10, and the other side of the connecting part 603 is fixedly connected to the auxiliary beam 11. The front and rear end faces of the waste ink tank 601 are respectively fixedly installed with crosspieces 602. The crosspieces 602 are installed with linear sliding rails on the end faces, and are respectively slidably installed with sliding blocks 604. The lower end extensions of the sliding blocks 604 slide through the gap between the crosspieces 602 and the waste ink tank 601 and penetrate to the bottom. A lead screw driving plate 607 is fixedly connected between the two extensions. A lead screw movement mechanism 606 is fixedly installed on the waste ink tank 601 and driven by the lead screw driving plate 607. The lead screw on the lead screw movement mechanism 606 is threadedly connected between the lead screw driving plate 607. A squeegee plate 605 is fixedly installed between the two sliding blocks 604. After the ink jetting on the textile is completed, the spray vehicle mechanism 9 is driven to move to the upper side of the waste ink tank 601. The lead screw movement mechanism 606 is started to drive the lead screw driving plate 607 to move linearly, thereby driving the surface squeegee plate into contact with the surface of the nozzle to clean the surface of the nozzle and keep the nozzle in an ideal ink jetting state.

[0042] In addition, in one embodiment, the upper sides of the main beam 10 and the auxiliary beam 11 are installed with a device safety guard 8 to protect the spray vehicle mechanism 9 during ink jetting.

[0043] Specific operation, textile selection: polyester (polyester fiber) fabric, thickness 0.3mm, width 4.2m, need to carry out high temperature disperse dye printing, ink type: use high temperature disperse ink, suitable for polyester fiber penetration fixation;

[0044] The polyester fabric is sent to the pretreatment tank, and the dispersed dye fixing agent is sprayed to form a microporous structure to enhance the ink permeability. After pretreatment, the fabric passes through the conveying belt of Y-direction conveying mechanism 1 into the inkjet working position.

[0045] Inkjet stage

[0046] Operation of the inkjet vehicle mechanism:

[0047] The magnetic levitation movement mechanism 12 is started to drive the inkjet vehicle mechanism 9 to move horizontally at a speed of 1 m / s along the main beam 10 and the slave beam 11.

[0048] The 96 inkjet nozzles 910 on the inkjet nozzle mounting plate 904 synchronously spray high-temperature dispersed ink.

[0049] Inkjet nozzle layout: The inkjet nozzle mounting holes 905 are distributed in a staggered manner (with a splice plate accuracy of 0.01 mm), which ensures uniform coverage of ink droplets and avoids overlapping of ink dots from adjacent inkjet nozzles.

[0050] Inkjet parameters: The resolution is 720 dpi, the ink droplet size is 10 pl (picoliter), and the ink temperature is controlled at 80°C (matching the polyester fixing requirements).

[0051] Inkjet process:

[0052] The computer 7 sends pattern instructions, the inkjet vehicle mechanism 9 adjusts the position according to the instructions, and the inkjet nozzles 910 spray ink as needed onto the fabric surface.

[0053] The recovery part 907 starts the negative pressure supply mechanism 4 to adsorb floating ink particles under the action of filter cotton, preventing pollution of the workshop environment or clogging of the inkjet nozzles.

[0054] Real-time monitoring of the inkjet nozzle anti-collision assembly 906:

[0055] When the limit switch 926 detects foreign matter on the edge of the fabric, it immediately triggers the Jiete intelligent control system to stop the movement of the inkjet vehicle mechanism 9, preventing the inkjet nozzles 910 from being damaged by impact.

[0056] The anti-collision grid 916 absorbs accidental impact force, further protecting the inkjet nozzles.

[0057] Post-treatment and cleaning stage;

[0058] Inkjet nozzle maintenance:

[0059] After the inkjet process is completed, the inkjet vehicle mechanism 9 moves above the inkjet nozzle maintenance mechanism 6.

[0060] The sliding block 604 moves the ink scraping plate 605 to contact the bottom of the inkjet nozzle 910, cleaning the surface of the inkjet nozzle to maintain the ideal inkjet state and prevent the inkjet nozzle from drying and clogging.

[0061] The filter cotton in the recovery part 907 is replaced regularly, the adsorbed ink particles are concentrated for recovery and treatment, waste water discharge is reduced, the optical axis 212 of the connecting mechanism 201 is fixed at one end and movable at the other end, the small deformation of the main beam 10 and the slave beam 11 is adapted, the long-term operation accuracy is ensured, and the safety shield 8 covers the main beam 10 and the slave beam 11 throughout the process, preventing the operator from contacting the high-speed moving inkjet vehicle mechanism 9.

[0062] At a width of 4.2 m, the inkjet speed reaches 10 m / min, and 100 m of fabric can be processed in a single batch in only 10 minutes, far exceeding traditional rotary screen printing (more than 30 minutes), with an hourly output of about 600 m², meeting the demand for large batch orders of carpets, advertising cloth and the like.

[0063] Beneficial effect analysis

[0064] High precision and high efficiency:

[0065] The magnetic suspension movement mechanism 12 and the staggered nozzle layout realize high-speed inkjet at 1 m / s, and the 720 dpi resolution ensures clear patterns, significantly improving detail performance compared to traditional printing (200-300 dpi).

[0066] 96 nozzles operate simultaneously, covering a width of 4.2 m, reducing the number of horizontal movements, and improving productivity.

[0067] Environmental protection and cost optimization:

[0068] The recovery part 907 adsorbs more than 90% of the floating ink particles, reducing waste and environmental pollution, and reducing ink consumption by 30%.

[0069] The nozzle maintenance mechanism 6 extends the service life of the nozzles to 1000 hours (traditional equipment is 500 hours), reducing maintenance costs.

[0070] Stability and safety:

[0071] The double protection (physical grid + electronic induction) of the anti-collision assembly 906 reduces the nozzle damage rate by 90% and reduces the equipment downtime by 50%.

[0072] The elastic design of the connecting mechanism 201 reduces the assembly precision requirement of the main beam, and the assembly efficiency is improved by 40%.

[0073] Strong adaptability:

[0074] Supports polyester, cotton, silk and other fabrics, adapts to different materials by changing the type of ink (dispersion / active / acidic), and the nozzle height is adjustable (0-30 mm), compatible with thick carpets (5 mm) and thin fabrics (0.1 mm).

[0075] The above merely describes the specific implementation of the application, but the protection scope of the application is not limited thereto, any change or replacement without creative labor should be covered in the protection scope of the application. Therefore, the protection scope of the application should be limited by the protection scope defined in the claims.

Claims

1. An intelligent digital high-speed inkjet printing process, comprising a Y-direction conveying mechanism (1), an ink supply mechanism (3), a negative pressure supply mechanism (4) and a power distribution system (5), characterized in that: The upper end face of the Y-direction conveying mechanism (1) is transversely provided with a main beam (10) and a slave beam (11), the main beam (10) and the slave beam (11) are provided with a spraying vehicle mechanism (9) for high-speed inkjet printing of textiles, the spraying vehicle mechanism (9) comprises a spraying vehicle main box (901), the left and right sides of the spraying vehicle main box (901) are respectively provided with mounting plates (902), the mounting plates (902) and the main beam (10) and the slave beam (11) are provided with a connecting mechanism (201) for ensuring the stable movement of the spraying vehicle mechanism (9), the connecting mechanism (201) comprises a base (211), an optical axis (212) and a fixed end (213), the optical axis (212) is slidingly installed in the circular hole of the base (211), the fixed end (213) is arranged on the mounting plate (902), the optical axis (212) is fixedly installed in the circular hole of the fixed end (213) through the mounting plate (902), the bottom of the spraying vehicle main box (901) is provided with a nozzle mounting plate (904), a plurality of nozzle mounting holes (905) are arranged in the nozzle mounting plate (904), a nozzle (910) is arranged in each nozzle mounting hole (905), the front end face of the spraying vehicle main box (901) is provided with a recovery part (907) for recovering ink particles floating in the inkjet process, the front end face of the recovery part (907) is fixedly provided with a nozzle anti-collision assembly (906) for avoiding collision of the inkjet nozzle, the inside of the recovery part (907) is hollowly provided with filter cotton, and a vacuum cavity is created through the negative pressure supply mechanism (4), the bottom of the recovery part (907) is provided with an open slot (909), the filter cotton around the open slot (909) is provided with suction force through the vacuum, so that the ink particles floating in the surrounding air are adsorbed on the filter cotton through the open slot (909).

2. The intelligent digital high-speed inkjet printing process according to claim 1, characterized in that: The nozzle anti-collision assembly (906) comprises an anti-collision grid (916) and a limit switch (926), the anti-collision grid (916) is fixedly installed on the front end face of the recovery part (907), and the limit switch (926) is installed on the left and right sides of the upper end of the anti-collision grid (916), the safety distance sensing of the limit switch (926) and the physical protection of the anti-collision grid (916) form double protection for the nozzle.

3. The intelligent digital high-speed inkjet printing process according to claim 1, characterized in that: The nozzle mounting plate (904) is arranged in a left-right splicing mode and is fixedly connected through a splicing plate, and the nozzle mounting holes (905) adjacent to each other are arranged in a staggered mode.

4. The intelligent digital high-speed inkjet printing process according to claim 1, characterized in that: The main beam (10) and the slave beam (11) are respectively provided with a magnetic levitation motion mechanism (12), the magnetic levitation motion mechanism (12) is used for controlling and driving the spraying vehicle mechanism (9) to move and providing precise and stable power output for the spraying vehicle mechanism (9), the magnetic levitation motion mechanism (12) comprises a linear guide rail and a magnetic levitation motor, the bottom of the base (211) is provided with a sliding bottom plate, and the bottom of the sliding bottom plate is connected to the linear guide rail through a sliding block.

5. The intelligent digital high-speed inkjet printing process according to claim 1, characterized in that: The main beam (10) and the slave beam (11) are further provided with a nozzle maintenance mechanism (6) for nozzle maintenance, the nozzle maintenance mechanism (6) comprises a ink slot (601), the left and right ends of the ink slot (601) are respectively fixedly provided with connecting parts (603), one side of the connecting part (603) is fixedly connected on the main beam (10), the other side of the connecting part (603) is fixedly connected on the slave beam (11), the front and rear end faces of the ink slot (601) are respectively fixedly provided with crosspieces (602), the crosspieces (602) are provided with linear sliding rails on the end faces, and the sliding rails are respectively provided with sliding blocks (604), the lower end of the sliding block (604) is provided with an extension part which is slidably arranged through the interval between the crosspiece (602) and the ink slot (601) and reaches the bottom, a lead screw driving plate (607) is fixedly connected between the two extension parts, a lead screw movement mechanism (606) is fixedly arranged on the ink slot (601), the lead screw of the lead screw movement mechanism (606) is threadedly connected with the lead screw driving plate (607), and an ink scraping plate (605) is fixedly arranged between the two sliding blocks (604).

6. The intelligent digital high-speed inkjet printing process according to claim 1, characterized in that: The optical axis (212) and the circular hole of the base (211) and the fixed end (213) are left with a gap, and the gap is arranged at 0.015-0.025mm.

7. The intelligent digital high-speed inkjet printing process according to claim 1, characterized in that: The main beam (10) and the slave beam (11) are further provided with a device safety shield (8) on the upper side.

8. The intelligent digital high-speed inkjet printing process according to claim 3, characterized in that: The front end face of the recovery part (907) is fixedly provided with a rubber blocking part (908).

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