CN112895721A

CN112895721A - Superspeed digital printing machine

Info

Publication number: CN112895721A
Application number: CN202110358273.3A
Authority: CN
Inventors: 李立涛
Original assignee: Guangdong Lichai Digital Technology Co Ltd
Current assignee: Guangdong Lichai Digital Technology Co Ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-06-04

Abstract

The invention relates to the technical field of digital printing machines, and discloses an ultra-high-speed digital printing machine, which comprises a rack; an unwinding mechanism; the first constant tension roller mechanism is used for conveying the medium and keeping the medium in a constant tension state; the printing device is used for printing the medium; the printing platform mechanism is used for conveying the medium and completing printing on the medium by matching with the printing device; the drying mechanism is used for drying the ink on the medium after printing is finished; and the winding mechanism is used for accommodating media. Compared with the prior art, the printing device adopts a structure without a guide belt, and the medium is used for transmission, so that the printing precision can be effectively improved, and the printing efficiency is effectively improved by using the high-speed transmission of the medium. In addition, unwinding mechanism, winding mechanism, stamp device and the integrative design of stoving mechanism can guarantee the unanimous tension of medium when the stamp and the precision of medium when the transmission, also can make the volume of calico printing machine littleer, practices thrift the space, improves the holistic precision of calico printing machine.

Description

Superspeed digital printing machine

Technical Field

The invention relates to the technical field of digital printing machines, in particular to an ultrahigh-speed digital printing machine.

Background

Digital printing is printing by digital technology, which is a high and new technology product gradually formed along with the continuous development of computer technology and integrating mechanical and computer electronic information technology, and the production process of digital printing is simply through various digital means, such as: scanning, digital photo, image or various digital patterns processed by computer are input into computer, then processed by computer color separation printing system, and various special dyes (active, disperse and acid main paint) are directly sprayed and printed on various fabrics or other media by special RIP software through spraying and printing system, and then processed to obtain various required high-precision printed products on various textile fabrics.

The existing digital printing machine mainly has two forms, one is a scanning type digital printing machine, as shown in patent number CN202010044147.6, a scanning type textile digital printing machine is disclosed, a spray head is installed on a spray head bracket, the scanning type digital printing is carried out by moving the spray head bracket back and forth on a beam, and the production efficiency of the scanning type digital printing machine is lower because the back and forth movement of the spray head requires time; another is a digital printing machine of the guide belt type, as shown in patent No. CN02107229.9, which discloses a digital jet printing machine of the guide belt type, the nozzle is fixed, but the print medium is transported by the guide belt, the digital printing machine of the guide belt type effectively improves the printing efficiency compared with the digital printing machine of the scanning type, but when the digital printing machine of the guide belt type performs printing, because the print medium is transported by the guide belt, the guide belt cannot transport the print medium completely synchronously with the print medium, and there is a certain deviation, for example, when the guide belt is started, the guide belt will be started first and then drive the print medium to transport, the guide belt will travel a distance of 2mm to 10mm more than the print medium, when the guide belt is stopped, but the print medium will continue to transport a distance of 2mm to 10mm, different print medium materials, and different guide belt transport speeds, the distance deviation is different, when the distance deviation exists, the printing precision of the digital printing machine is influenced, and particularly when the conduction band runs at an ultra-high speed, the printing precision becomes a technical difficulty.

Disclosure of Invention

Based on the above, the invention aims to provide an ultrahigh-speed digital printing machine, which can effectively improve the printing precision and improve the printing efficiency.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides an ultra-high speed digital printing machine, comprising:

a frame;

the unwinding mechanism is arranged on the rack and used for outputting a medium;

the first constant tension roller mechanism is arranged on the rack and used for conveying the medium and keeping the medium in a constant tension state;

the printing device is arranged on the rack and used for printing the medium;

the printing platform mechanism is arranged on the rack, is positioned below the printing device and is used for conveying media and matching with the printing device to finish printing on the media, and comprises a vacuum adsorption platform, a driving roller and a driven roller, wherein the driving roller and the driven roller are respectively arranged on two sides of the vacuum adsorption platform along a first direction;

the drying mechanism is arranged on the rack and used for drying ink on the medium after printing is finished;

and the winding mechanism is arranged on the rack and used for accommodating media.

The first constant tension roller mechanism is arranged between the unreeling mechanism and the printing platform mechanism;

the first constant tension roller mechanism comprises at least two first electronic frames which are arranged side by side, a brake roller is arranged on each first electronic frame in a sliding mode along the length direction of each first electronic frame, and a first corner roller is arranged above the middle of each two adjacent first electronic frames.

The printing platform mechanism comprises a first constant tension roller mechanism and a printing platform mechanism, wherein the first constant tension roller mechanism is arranged between the first constant tension roller mechanism and the printing platform mechanism.

The corner wrapping roller is arranged between the first brush roller and the driving roller, and the center of the corner wrapping roller, the center of the driving roller and the center of the driven roller are connected to form an acute angle.

The printing device comprises a rack, a printing device and a nozzle vacuum moisturizing device, wherein the nozzle vacuum moisturizing device is arranged on the rack and can slide to the lower part of the printing device along a first direction.

And the nozzle cleaning device can slide along the second direction.

The printing device comprises a printing device, and is characterized by further comprising an ink path system, wherein the ink path system is connected with the printing device.

Wherein, stoving mechanism sets up in print platform mechanism's below.

And a second electronic frame is arranged between the printing platform mechanism and the drying mechanism, and a second brush roller is arranged on the second electronic frame in a sliding manner.

And a second constant tension roller mechanism is arranged between the winding mechanism and the drying mechanism.

The invention has the beneficial effects that:

the invention provides an ultrahigh-speed digital printing machine, which is mainly used for rolling media and has the working principle that an unwinding mechanism conveys the rolled media to a printing platform, a first constant tension roller mechanism enables the media to keep a constant tension state, a vacuum adsorption platform on the printing platform adsorbs the media on the surface of the printing platform, a driving roller is used for providing power for high-speed transmission, a printing device prints the media above the printing platform, after printing is completed, a drying mechanism dries ink on the printed media, and finally a winding mechanism stores the media. Compared with the prior art, the printing device adopts a structure without a guide belt, and the medium is used for transmission, so that the printing precision can be effectively improved, and the printing efficiency is effectively improved by using the high-speed transmission of the medium. In addition, unwinding mechanism, winding mechanism, stamp device and the integrative design of stoving mechanism can guarantee the unanimous tension of medium when the stamp and the precision of medium when the transmission, also can make the volume of calico printing machine littleer, practices thrift the space, improves the holistic precision of calico printing machine.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an ultra-high speed digital printing machine according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a printing platform mechanism according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a nozzle vacuum moisturizing device and a nozzle cleaning device according to a first embodiment of the present invention;

FIG. 4 is a schematic structural diagram of another visual aspect of a nozzle vacuum moisturizing device and a nozzle cleaning device according to an embodiment of the present invention;

FIG. 5 is an enlarged schematic view of FIG. 3 at A;

FIG. 6 is an enlarged schematic view of the structure at B in FIG. 4;

FIG. 7 is a schematic structural diagram of an ink path system according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of an ultra-high speed digital printing machine according to a second embodiment of the present invention.

In the figure:

C. a medium; x, a first direction; y, a second direction; z, a third direction;

1. a frame; 11. unwinding rollers; 110. a fourth corner roll; 111. a fourth brush roller; 113. a second constant tension roller mechanism; 12. a wind-up roll; 13. a second corner roll; 14. a first brush roller; 15. a wrap angle roller; 16. a second electronic stand; 17. a second brush roller; 18. a third corner roll; 19. a third brush roller;

2. a first constant tension roller mechanism; 21. a first electronic shelf; 211. a chute; 22. a brake roller; 23. a first corner roll;

3. a printing device; 31. a spray head holder; 32. a spray head; 33. a first drive mechanism;

4. a print platform mechanism; 41. a vacuum adsorption platform; 42. a drive roll; 43. a driven roller; 44. a first arc-shaped notch; 45. a second arc-shaped notch;

5. a drying mechanism;

6. a spray head vacuum moisturizing device; 61. a mounting frame; 611. a water tank; 612. a water outlet; 62. a chassis; 63. a vacuum moisturizing component; 631. a base; 632. a vacuum moisture-preserving chamber; 633. a base; 634. a first seal strip; 635. a second seal strip; 636. a third seal strip; 637. a fourth seal strip; 64. a second drive mechanism; 65. a first slide rail; 66. a first slide member; 67. a connecting frame; 68. a second slide rail;

7. a nozzle cleaning device; 71. cleaning the plate; 711. a cleaning tank; 712. a first connecting plate; 713. a second connecting plate; 714. a third connecting plate; 715. a fourth connecting plate; 716. a carrier plate; 717. a second slide member; 72. a third drive mechanism; 721. a motor; 722. a driving wheel; 723. a driven wheel; 724. tensioning the belt; 73. a water spray hole; 74. a scraper; 75. cleaning a seat; 751. an inclined surface; 761. a water inlet pipe; 762. a water outlet pipe; 77. a clamping block; 78. a bearing groove; 79. a drain hole;

8. an ink extraction device;

9. an ink path system; 901. an ink adding barrel; 902. a first filter; 903. an ink supply pump; 904. a one-way valve; 905. an ink inlet chamber; 906. a butterfly filter; 908. an ink outlet chamber; 909. a circulating ink pump; 910. degassing the lung; 911. a first buffer tank; 912. a first direct-current solenoid valve; 913. a vacuum pump; 914. a first vacuum gauge; 915. a third filter; 916. a negative pressure generator; 917. a pressure sensor; 918. a second buffer tank; 919. a negative pressure shunt tube; 920. a second straight-through solenoid valve; 921. a second vacuum gauge; 922. a second filter; 923. an ink pressing pump; 924. a pressure regulating valve; 925. a positive pressure gauge; 926. a three-way valve assembly; 927. a liquid level sensor; 928. a heating device.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Example one

As shown in fig. 1 and 2, an ultra high speed digital printing machine according to an embodiment of the present invention is mainly used for printing roll media, where the media C may be paper, cloth, or other printable materials such as plastic, and the media C is not limited to the above materials, and the ultra high speed digital printing machine according to an embodiment of the present invention includes: a frame 1; preferably, the rack 1 is a marble rack, the texture of the marble is uniform, the linear expansion coefficient is extremely small, the internal stress completely disappears, the rack has the characteristics of no deformation, good rigidity, high hardness, strong wear resistance and the like, when the rack 1 is applied, the rack 1 has good stress, and the marble rack can solve the problem of rack precision of a steel part structure of the existing digital printing machine in the technical aspect; the unwinding mechanism is arranged on the rack 1 and used for outputting a medium C; the first constant tension roller mechanism 2 is arranged on the rack 1 and used for conveying the medium C and keeping the medium C in a constant tension state; the printing device 3 is arranged on the rack 1 and is used for printing the medium C; the printing platform mechanism 4 is arranged on the frame 1, is located below the printing device 3, and is used for conveying the medium C and matching with the printing device 3 to complete printing on the medium C, the printing platform mechanism 4 comprises a vacuum adsorption platform 41, a driving roller 42 and a driven roller 43, and the driving roller 42 and the driven roller 43 are respectively arranged on two sides of the vacuum adsorption platform 41 along a first direction X; the drying mechanism 5 is arranged on the rack 1 and used for drying ink on the medium C after printing is finished; and the winding mechanism is arranged on the rack 1 and used for accommodating a medium C. Preferably, the printing device 3 includes a nozzle holder 31, a nozzle 32 and a first driving mechanism 33, the nozzle 32 is installed on the nozzle holder 31, an output end of the first driving mechanism 33 is connected to the nozzle holder 31, the first driving mechanism 33 can control the nozzle holder 31 to move up and down along a third direction Z, the first direction X and the third direction Z are perpendicular to each other, and in this embodiment, the first driving mechanism 33 is an air cylinder.

The embodiment of the invention provides an ultrahigh-speed digital printing machine which is mainly used for rolled media and has the working principle that an unreeling mechanism conveys the rolled media C to a printing platform mechanism 4, a first constant tension roller mechanism 2 enables the media C to be in a constant tension state, a vacuum adsorption platform 41 on the printing platform mechanism 4 adsorbs the media C on the surface of the medium C, a driving roller 42 is used for providing power for high-speed transmission, a printing device 3 above the printing platform prints the media C, after printing is completed, a drying mechanism 5 dries ink on the printed media C, and finally a reeling mechanism stores the media C. Compared with the prior art, the printing method and the printing device have the advantages that the structure without the guide belt is adopted, the medium C is used for transmission, the printing precision can be effectively improved, and the high-speed transmission of the medium C is used for effectively improving the printing efficiency. In addition, unwinding mechanism, winding mechanism, stamp device 3 and 5 integrated designs of drying mechanism can guarantee the unanimous tension of medium when the stamp and the precision of medium when the transmission, also can make the volume of stamp machine littleer, practices thrift the space, improves the holistic precision of stamp machine.

As shown in fig. 1, as a preferable mode of the embodiment of the present invention, the first constant tension roller mechanism 2 is disposed between the unwinding mechanism and the printing platform mechanism 4;

the first constant tension roller mechanism 2 comprises at least two first electronic frames 21 arranged side by side, a brake roller 22 is arranged on each first electronic frame 21 in a sliding mode along the length direction of each first electronic frame 21, and a first corner roller 23 is arranged above the middle of each two adjacent first electronic frames 21.

Unwinding mechanism is including unreeling 11 and unreeling motor (not shown), and medium C twines on unreeling 11, unreeling motor's output is connected unreeling 11, the drive unreel 11 the rotation of roller to carry medium C first constant tension roller mechanism 2 unreel 11 with set up between first constant tension roller mechanism 2 and be provided with second corner roller 13, second corner roller 13 rotates and sets up in frame 1, and second corner roller 13 can make medium C when unreeling 11 and the transmission of first constant tension roller mechanism 2, keeps the tensioning state. In the embodiment of the present invention, after the medium C comes out from the unwinding roller 11, the medium C is conveyed to the brake roller 22 of the first electronic shelf 21, the medium C is conveyed to the first corner roller 23 from the brake roller 22 of the first electronic shelf 21, the medium C is conveyed to the brake roller 22 of the second first electronic shelf 21 from the first corner roller 23 above the first corner roller 23 and then conveyed to the brake roller 22 of the second first electronic shelf 21 from the first corner roller 23, the medium C is conveyed to the lower side of the brake roller 22 of the second first electronic shelf 21 and then conveyed to the printing platform mechanism 4 for printing, at least two groups of the first electronic shelf 21 and the brake roller 22 may be provided, specifically, when the medium C is too tensioned, the unwinding speed is increased by the unwinding mechanism in order to maintain a constant tension, when the medium C is too loose, the unwinding speed is decreased by the adjustment of at least two brake rollers 22, the medium C can be kept in an accurate constant tension state during ultrahigh-speed digital printing, and the printing precision is effectively improved. Further, an upper displacement sensor (not shown) and a lower displacement sensor (not shown) are disposed on the first electronic rack 21, the upper displacement sensor is located at an upper portion of the first electronic rack 21 in the length direction, and the lower displacement sensor is located at a lower portion of the first electronic rack 21 in the length direction. Specifically, the brake roller 22 is disposed between the upper displacement sensor and the lower displacement sensor, when the medium C is too tensioned, the medium C lifts the brake roller 22 upwards along the length direction of the first electronic rack 21, when the upward sliding position of the brake roller 22 reaches the upper displacement sensor, the upper displacement sensor senses that the medium C is too tensioned, and sends a signal to the unwinding mechanism, the unwinding mechanism accelerates the winding speed, so that the medium C becomes loose, then the brake roller 22 slides downwards under the action of gravity, when the medium C is too loose, the brake roller 22 slides downwards under the action of gravity to the lower displacement sensor, the lower displacement sensor senses that the medium C is too loose, and sends a signal to the unwinding mechanism, the unwinding mechanism slows the unwinding speed, so that the medium C is tensioned, and the whole process ensures that the brake roller 22 is between the upper displacement sensor and the lower displacement sensor, thereby keeping a constant tension and effectively improving the printing precision. Further, the first electronic frame 21 is provided with a sliding slot 211, the brake roller 22 is slidably disposed on the sliding slot 211, the brake roller 22 is rotatably and slidably disposed on the sliding slot 211, and the upper displacement sensor and the lower displacement sensor are respectively disposed on the upper portion and the lower portion of the sliding slot 211, it should be noted that the brake roller 22 is slidably disposed on the first electronic frame 21, and other sliding structures, such as a sliding rail, may also be adopted. In the embodiment of the invention, the first constant tension roller mechanism 2 is matched with the unreeling mechanism, and the first constant tension roller mechanism 2 plays a role in buffering, so that the medium C is kept in a constant tension state.

As shown in fig. 1, as a preferable mode of the embodiment of the present invention, the present invention provides an ultra high speed digital printing machine further comprising a first brush roller 14, wherein the first brush roller 14 is disposed between the first constant tension roller mechanism 2 and the printing platform mechanism 4.

The first brush roller 14 is rotatably disposed on the frame 1, and the first brush roller 14 can effectively prevent the medium C from wrinkling and the two sides from being loose differently, in this embodiment, three first electronic shelves 21 are disposed, and the three first electronic shelves 21 are arranged side by side. Specifically, the braking rollers 22 are slidably disposed on all three first electronic shelves 21, and the first corner roller 23 is disposed above the middle of two adjacent first electronic shelves 21, wherein the second corner roller 13, the braking roller 22 and the first corner roller 23 of the first electronic shelf 21 form a first "V" shape, the first corner roller 23, the braking roller 22 and the second first corner roller 23 of the second first electronic shelf 21 form a second "V" shape, the second first corner roller 23, the braking roller 22 and the first brush roller 14 of the third first electronic shelf 21 form a third "V" shape, the medium C forms three "V" shapes, and the bottom of the "V" shape is adjustable, so that the medium C maintains an optimal constant tension state, and the printing precision is effectively improved.

As shown in fig. 1, as a preferable mode of the embodiment of the present invention, the present invention provides an ultra high speed digital printing machine further comprising an angle wrapping roller 15, wherein the angle wrapping roller 15 is disposed between the first brush roller 14 and the drive roller 42, and a center of the angle wrapping roller 15, a center of the drive roller 42 and a center of the driven roller 43 are connected to form an acute angle.

The wrap angle roller 15 is rotatably arranged on the machine frame 1, the wrap angle roller 15 is attached to the lower portion of the driving roller 42, the center of the wrap angle roller 15, the center of the driving roller 42 and the center of the driven roller 43 are connected to form an acute angle, and preferably, a magnetic powder brake (not shown) is arranged on the wrap angle roller 15, so that the resistance of conveying a medium C can be increased, the medium C is prevented from slipping when entering the driving roller 42, a constant tension state is kept, and the printing precision is influenced.

As shown in fig. 2, as a preferable mode of the embodiment of the present invention, a first arc notch 44 is provided at a side of the vacuum adsorption platform 41 adjacent to the driving roller 42 along the first direction X, the driving roller 42 is disposed in the first arc notch 44, a second arc notch 45 is provided at a side of the vacuum adsorption platform 41 adjacent to the driven roller 43 along the first direction X, the driven roller 43 is disposed in the second arc notch 45, the driving roller 42 is rotatably disposed on the frame 1 by a driving roller motor (not shown), the driven roller 43 is rotatably disposed on the frame 1, the driving roller 42 is disposed in the first arc notch 44, and the driven roller 43 is disposed in the second arc notch 45, so that a gap between the driving roller 42 and the vacuum adsorption platform 41 and a gap between the vacuum system platform 41 and the driven roller 43 can be reduced, therefore, the media C is prevented from being wrinkled and wound into the gap, so that the media C is kept flat on the vacuum adsorption platform 41, a plurality of vacuum adsorption holes (not shown) are formed in the vacuum adsorption platform 41, the principle of realizing vacuum adsorption is the prior art, and no surplus exists here.

As shown in fig. 3, 4 and 5, as a preferred mode of the embodiment of the present invention, the present invention provides an ultra-high speed digital printing machine further comprising a nozzle vacuum moisturizing device 6, wherein the nozzle vacuum moisturizing device 6 is disposed on the frame 1 and can slide to a position below the printing device 3 along a first direction X.

When the nozzle 32 is not operated, the vacuum moisturizing device can move in the first direction X to be directly below the nozzle 32, and then the nozzle 32 is driven by the first driving mechanism 33 to move downwards to be embedded on the nozzle vacuum moisturizing device 6. The spray head vacuum moisturizing device 6 in the embodiment of the invention comprises: the base frame 62 extends along a second direction Y, the second direction is perpendicular to the first direction and a third direction, n vacuum moisturizing assemblies 63 corresponding to the n spray heads 32 are arranged on the upper surface of the base frame 62, and n is a natural number; specifically, the vacuum moisturizing components 63 are arranged according to the number of the spray heads 32, and if the spray heads 32 on the ultrahigh-number digital printing machine are one hundred, one hundred of the vacuum moisturizing components 63 are correspondingly arranged. Vacuum moisturizing subassembly 63 includes that base 631 and top are provided with open-ended vacuum moisturizing chamber 632, base 631 is fixed in chassis 62, preferably, base 631 passes through screw detachable to be fixed on chassis 62, can install how many vacuum moisturizing subassemblies 63 according to the selection of the quantity freedom of shower nozzle 32 like this, vacuum moisturizing chamber 632 set up in the top of base 631, vacuum moisturizing chamber 632 shape and size with the shape and the size phase-match of shower nozzle 32. Specifically, when the spray head 32 stops working, the spray head 32 is inserted into the vacuum moisturizing chamber 632, and the shape and size of the vacuum moisturizing chamber 632 are matched with the shape and size of the spray head 32. Compared with the conventional large-size spray head vacuum moisturizing device 6, one spray head 32 corresponds to one vacuum moisturizing device, so that the spray head 32 can be kept in vacuum sufficiently, maintenance and protection of the spray head 32 are facilitated, and the spray heads 32 are not affected. Further, the vacuum moisturizing assembly 63 further includes a base 633, the base 633 is disposed above the base 631, an upper surface of the base 633 is provided with a first sealing strip 634, a second sealing strip 635, a third sealing strip 636 and a fourth sealing strip 637, the first sealing strip 634, the second sealing strip 635, the third sealing strip 636, the fourth sealing strip 637 and the base 633 are enclosed to form the vacuum moisturizing cavity 632. Specifically, the first sealing strip 634, the second sealing strip 635, the third sealing strip 636 and the fourth sealing strip 637 are connected end to form a sealing ring, and when the nozzle 32 is inserted into the vacuum moisturizing chamber 632, the first sealing strip 634, the second sealing strip 635, the third sealing strip 636 and the fourth sealing strip 637 seal the edges of the nozzle 32 to maintain the vacuum moisturizing chamber 632 in a vacuum-sealed state. Preferably, the vacuum moisturizing assembly 63 further comprises a vacuum pumping device (not shown) which is communicated with the vacuum moisturizing chamber 632 so as to ensure the vacuum of the vacuum moisturizing chamber 632. The vacuum moisture-preserving chamber 632 can also be communicated with a pipeline for collecting ink, because the spraying head 32 can be scattered occasionally when not in operation in order to avoid the blockage of the spraying head 32, and the scattered ink can be recycled and reused through the pipeline, thereby avoiding the waste of ink. Further, the nozzle vacuum moisturizing device 6 further includes a mounting frame 61 and a second driving mechanism 64, the base frame 62 is disposed on the mounting frame 61, the same mounting frame 61 extends along a second direction Y, the second driving mechanism 64 can drive the mounting frame 61 to slide along a first direction X, and the first direction X, the second direction Y are perpendicular to the third direction Z. Specifically, in practical operation, for an ultra-high speed digital printing machine, the nozzle 32 moves up and down, and the printing platform mechanism 4 is located right below the nozzle 32, so that the vacuum moisturizing component 63 needs to be disposed right below the nozzle 32, in this embodiment, the second driving mechanism 64 can drive the mounting frame 61 to slide along the first direction X, so as to drive the vacuum moisturizing component 63 to slide right below the nozzle 32, and then the nozzle 32 moves down to be embedded into the vacuum moisturizing component 63, and when the nozzle 32 needs to operate, the mounting frame 61 moves out under the driving of the second driving mechanism 64. Further, shower nozzle vacuum moisturizing device 6 still includes first slide rail 65, first slide rail 65 is installed in frame 1, and mounting bracket 61 all is provided with first slide rail 65 along the both sides of second direction Y, mounting bracket 61 is provided with first slider 66 along the bottom of second direction Y both sides, preferably, first slider 66 is pulley or slider, first slider 66 slide set up in on first slide rail 65, the output of second actuating mechanism 64 is connected mounting bracket 61, second actuating mechanism 64 can be provided with two sets ofly, also can be provided with a set ofly, in this embodiment second actuating mechanism 64 is provided with two sets ofly, sets up respectively mounting bracket 61 is along the both sides of second direction Y. Specifically, the output end of the second driving mechanism 64 controls the mounting frame 61 to slide on the first slide rail 65 in the first direction X through the first slide member 66. Further, the second driving mechanism 64 is a linear motor 721, the mounting frame 61 is provided with a connecting frame 67, and an output end of the linear motor 721 is connected to the connecting frame 67.

As shown in fig. 3, 4 and 6, the nozzle vacuum moisturizing device 6 is slidably provided with a nozzle cleaning device 7, and the nozzle cleaning device 7 is slidable in the second direction Y.

After the spray head 32 is operated, the spray head 32 needs to be cleaned, otherwise the spray head 32 is blocked, in the embodiment of the invention, the vacuum moisturizing device is combined with the spray head cleaning device 7, the mounting frame 61 slides to the position below the spray head 32 along the first direction X, and then the spray head cleaning device 7 slides along the second direction Y to clean the spray head 32. Specifically, the nozzle cleaning device 7 includes cleaning plates 71 slidably disposed on two sides of the mounting frame 61 along the first direction X; a third driving mechanism 72, the output end of which is connected to the cleaning plate 71, so that the cleaning plate 71 can automatically slide on the mounting frame 61 along the second direction Y; wherein the cleaning plate 71 is provided with a water spray hole 73 and a scraper 74, and the water spray hole 73 and the scraper 74 are arranged side by side along a second direction Y. When the water spraying holes 73 and the scrapers 74 are arranged side by side along the second direction Y, the left and right positions of the water spraying holes 73 and the scrapers 74 are not limited, because in actual operation, if the mounting frame 61 slides from the right to the left along the second direction Y, the scrapers 74 are on the right of the water spraying holes 73, and if the mounting frame 61 slides from the left to the right along the second direction Y, the scrapers 74 are on the left of the water spraying holes 73, preferably, the scrapers 74 are flexible scrapers 74, so that the damage of the hard scrapers 74 to the spray head 32 can be avoided. Specifically, when the nozzle cleaning device 7 is in operation, when the nozzle 32 is above the mounting frame 61, the cleaning plate 71 slides on the mounting frame 61 along the second direction Y, in the sliding process, the water spray holes 73 spray water upwards, the nozzle 32 is cleaned, and due to the fact that the water spray holes 73 and the scrapers 74 are arranged side by side along the second direction Y, the scrapers 74 scrape the nozzle 32 immediately after water spraying, the cleaning efficiency of the nozzle 32 is effectively improved, and when the number of the nozzles 32 is too large, along with the sliding of the cleaning plate 71, the cleaning of the nozzle 32 can be completed quickly. Further, the cleaning plate 71 includes a cleaning groove 711 having an opening at the top, and the water spraying hole 73 and the scraper 74 are disposed in the cleaning groove 711. Specifically, the cleaning plate 71 includes a first connecting plate 712, a second connecting plate 713, a third connecting plate 714, a fourth connecting plate 715, and a bearing plate 716, the first connecting plate 712, the second connecting plate 713, the third connecting plate 714, the fourth connecting plate 715, and the bearing plate 716 enclose a cleaning tank 711 having an opening at the top, and the water spraying hole 73 and the scraper 74 are disposed on the upper surface of the middle portion of the bearing plate 716. Further, a cleaning seat 75 is disposed in the cleaning tank 711, the water spraying holes 73 are disposed on the upper surface of the cleaning seat 75, and a water pipe is disposed on a side surface of the cleaning seat 75 and communicated with the water spraying holes 73. Specifically, the cleaning seats 75 are fixedly disposed on the upper surface of the supporting plate 716, and are fixed to the supporting plate 716 through screws, the number of the cleaning seats 75 is not limited, and the cleaning seats can be disposed according to the number of the nozzles 32, in this embodiment, two cleaning seats 75 are disposed side by side along the first direction X, the water pipe includes a water inlet pipe 761 and a water outlet pipe 762, in this embodiment, the water inlet pipe 761 is disposed on a side surface of one of the cleaning seats 75, the water outlet pipe 762 is disposed on a side surface of the other cleaning seat 75, water can flow from the water inlet pipe 761 to the water outlet pipe 762, it should be mentioned that, when there is only one cleaning seat 75, the water inlet pipe 761 and the water outlet pipe 762 are both disposed on one cleaning seat 75, when there are a plurality of cleaning seats 75, the water inlet pipe 761 is disposed on the first cleaning seat 75, the water outlet pipe 762 is disposed on the other cleaning seat 75, then, the rest of the cleaning seats 75 are communicated with each other, so that redundancy of a plurality of water inlet pipes 761 and a plurality of water outlet pipes 762 can be avoided, specifically, when water flows into the water conveying pipes, water is sprayed out from the water spraying holes 73 under the action of water pressure to clean the spray heads 32, and it should be noted that a corresponding pressure device (not shown) can be arranged inside the cleaning seats 75 to control the water pressure. Preferably, the scraper 74 is mounted on the cleaning seat 75, specifically, the scraper 74 and the water spraying hole 73 are arranged side by side along the second direction Y, the scraper 74 is mounted on both sides of the cleaning seat 75 along the second direction Y, the scraper 74 may be mounted by screws or in other manners, in this embodiment, the cleaning seat 75 further includes a clamping block 77, the clamping block 77 clamps the scraper 74, and then the clamping block 77 is fixed on the cleaning seat 75 by screws, so as to complete the mounting of the scraper 74. Preferably, the first connecting plate 712 is provided with a bearing groove 78, and the bearing groove 78 is mainly used for positioning the connection between the water pipe and the external water pipe. Further, in order to discharge the sewage after the cleaning of the nozzle 32, a drain hole 79 is provided at the bottom of the cleaning tank 711, a water tank 611 is provided on the mounting bracket 61, and the water tank 611 is communicated with the drain hole 79. Specifically, the bearing plate 716 is provided with a drainage hole 79, the top of the mounting frame 61 is provided with an open water tank 611, the water tank 611 is communicated with the drainage hole 79 through a pipeline, the sewage after the cleaning nozzle 32 is cleaned can be drained to the water tank 611, and the water tank 611 is provided with a water outlet 612, so that the cleaned sewage is drained. Further, the cleaning seat 75 includes an inclined surface 751, and the inclined surface 751 is connected to an upper surface of the cleaning seat 75. The inclined surface 751 is disposed at a side adjacent to the water discharge hole 79, and when the head 32 is cleaned, water falls again, and the inclined surface 751 helps water flow along the inclined surface 751 to the water discharge hole 79, thereby rapidly discharging the cleaned sewage. Further, two sides of the mounting frame 61 along the first direction X are provided with second sliding rails 68, and two sides of the cleaning plate 71 along the first direction X are provided with second sliding members 717, preferably, the second sliding members 717 are sliding blocks or pulleys, and in this embodiment, the sliding blocks are sliding blocks. Further, the third driving mechanism 72 includes a motor 721, a driving pulley 722, a driven pulley 723, and a tension belt 724; the output end of the motor 721 is connected to the driving wheel 722, the driven wheel 723 is rotatably disposed on the side surface of the mounting frame 61 along the first direction X, the tension belt 724 is disposed between the driving wheel 722 and the driven wheel 723, the tension belt 724 is parallel to the second slide rail 68, and the tension belt 724 is connected to the cleaning plate 71. The tension belt 724 is connected with the second sliding component 717, when the motor 721 rotates, the motor 721 drives the driving wheel 722 to rotate, so as to drive the tension belt 724 to move linearly between the driving wheel 722 and the driven wheel 723, so as to drive the sliding of the second sliding component 717, and thus drive the sliding of the whole cleaning plate 71. In the embodiment of the invention, in practical operation, the mounting frame 61 slides downwards to the lower part of the spray head 32, the spray head 32 moves downwards to a proper cleaning position, the cleaning seat 75 slides along the second direction Y, during the sliding process, the water spray holes 73 spray water to clean the spray head 32, the scraper 74 simultaneously scrapes over the spray head 32, after the cleaning, the cleaning plate 71 resets, and then the spray head 32 continues to move downwards to be embedded into the spray head vacuum moisturizing device 6 for maintenance and protection.

As shown in fig. 7, as a preferred mode of the embodiment of the present invention, the present invention provides an ultra high speed digital printing machine further comprising an ink path system 9, wherein the ink path system 9 is connected to the printing device 3.

The ink path system 9 is arranged on the rack 1, the ink path system 9 is connected with a spray head 32 of the printing device 3 and supplies ink to the spray head 32, and the spray head 32 is an Epson non-industrial spray head 32; preferably, the spray head 32 is an epressen S3220 spray head or the spray head is an epressen I3220 spray head. The ink path system 9 includes: an inking assembly that provides ink to the ink path system 9; an ink circulation component connected with the ink adding component and used for controlling the circulation of the nozzle 32 and the relation of pressure difference; and the positive and negative pressure control assembly is connected with the ink circulation assembly and is used for controlling the positive and negative pressure of the ink circulation assembly. In the embodiment of the present invention, the ink path system 9 is connected to a nozzle 32 to supply ink to the nozzle 32, and the nozzle 32 is an epresen non-industrial nozzle 32; the ink adding component of the invention provides ink for the ink path system 9; an ink circulation assembly for controlling the circulation of the head 32 in relation to the pressure differential; and the positive and negative pressure control assembly is connected with the ink circulation assembly and is used for controlling the positive and negative pressure of the ink circulation assembly. Through the ink circulation assembly and the positive and negative pressure control assembly, the whole ink path system 9 can keep stable negative pressure, so that the whole ultrahigh-speed digital printing machine is stable in ink supply, simple in structure and effectively improved in production efficiency. The ink circulation assembly includes: the secondary ink box comprises an ink inlet cavity 905 and an ink outlet cavity 908, wherein liquid level sensors 927 are arranged in the ink inlet cavity 905 and the ink outlet cavity 908, the liquid level sensors 927 are used for sensing the liquid levels of ink in the ink inlet cavity 905 and the ink outlet cavity 908 and ensuring that the liquid level height is kept in the ink printing process, the ink inlet cavity 905 is connected with an ink inlet of the nozzle 32, and the ink outlet cavity 908 is connected with an ink outlet of the nozzle 32; specifically, the ink adding component is connected with the ink inlet cavity 905 to supply ink to the whole ink circulation component, and the ink is transmitted to the ink inlet of the nozzle 32 after entering the ink inlet cavity 905, preferably, a butterfly filter 906 is arranged between the ink inlet cavity 905 and the ink inlet of the nozzle 32, and the butterfly filter 906 can filter out impurities with a size of more than 5 μm in the ink, so that the nozzle 32 is prevented from being blocked due to overlarge impurity particles when the nozzle 32 is used for printing, and the printing quality is improved; a circulating ink pump 909 connected to the ink outlet chamber 908; the pressure difference relation and the circulation of the nozzle 32 is controlled by adjusting the flow rate of the circulation ink pump 909; and a degassing lung 910 connected to the circulating ink pump 909 and the ink inlet chamber 905, respectively, wherein a circulating negative pressure member is further connected to the degassing lung 910. Specifically, since the ink has a large impulse force and is accompanied by bubbles after passing through the ink supply pump 903, which affects the stability of the whole ink circulation assembly and also affects the printing effect of the nozzle 32, the degassing lung 910 can remove the bubbles, and the ink is transported into the ink inlet cavity 905 after being removed; preferably, the circulating negative pressure part includes: a first buffer tank 911 connected to the degassing lung 910; a first vacuum gauge 914 connected to the first buffer tank 911; a first direct-current solenoid valve 912 connected to the first buffer tank 911; and a vacuum pump 913 connected to the first direct solenoid valve 912. Specifically, the circulating negative pressure component is used for ensuring a circulating stable negative pressure of the ink circulating assembly, the requirement of the negative pressure is-70 Kpa to-80 Kpa, preferably, the first buffer tank 911 is made of stainless steel, the capacity of the first buffer tank 911 is 1L, the first buffer tank 911 is made of stainless steel, the material can be prevented from changing and rusting, and therefore the stability of the negative pressure is influenced, and the capacity of 1L is a model which is optimal in negative pressure fluctuation during printing, and plays a role in buffering during the negative pressure to ensure the stability of the negative pressure. Further, the inking assembly comprises: the ink adding barrel 901 is provided with an ink adding port for adding ink to the ink adding barrel 901, liquid level sensing is arranged in the ink adding barrel 901, and a liquid level sensor 927 can sense the liquid level of the ink in the ink adding barrel 901 to ensure that the ink keeps a certain liquid level; a first filter 902 connected to the ink, the first filter 902 filtering impurities of 10 μm or more in the ink; an ink supply pump 903, which is connected to the first filter 902, wherein the ink supply pump 903 pumps out the ink in the ink tank 901 and supplies the ink to the ink inlet cavity 905; one end of the check valve 904 is connected to the ink supply pump 903, the other end of the check valve 904 is connected to the ink inlet cavity 905, and the check valve 904 ensures that ink is delivered in one direction and does not flow back. Further, the positive and negative pressure control assembly comprises a positive pressure control assembly and a negative pressure control assembly; the positive pressure control component is connected with the ink inlet cavity 905; the negative pressure control component is connected with the ink outlet chamber 908, and keeps the pressure difference between the ink inlet chamber 905 and the ink outlet chamber 908 at-20 Kpa to-40 Kpa. Wherein the positive pressure control assembly comprises: a second filter 922, the second filter 922 being communicated with the outside air for filtering out impurities in the air; an ink pressure pump 923 connected to the second filter 922 for providing a positive pressure; the pressure regulating valve 924 is connected with the ink pressure pump 923 and is used for regulating the positive pressure; a three-way valve assembly 926 connected to the pressure regulating valve 924, the three-way valve assembly 926 further connecting the ink inlet chamber 905 and the ink outlet chamber 908, respectively; three-way valve assembly 926 is free to switch to either ink inlet chamber 905 or ink outlet chamber 908; and the positive pressure meter 925 is connected with the pressure regulating valve 924 and is used for detecting the positive pressure adjusted by the pressure regulating valve 924 and ensuring that the positive pressure is 0 to 80 Kpa. Further, the negative pressure control assembly includes: a third filter 915 connected to the outside air for filtering out impurities in control; a negative pressure generator 916 connected to the third filter 915 for providing a negative pressure; a second buffer tank 918 connected with the negative pressure generator 916, wherein the second buffer tank 918 is further connected with a pressure sensor 917; preferably, the second buffer tank 918 is made of stainless steel, the capacity of the second buffer tank 918 is 1L, the second buffer tank 918 is made of stainless steel, which can prevent the change of the material from rusting, so as to affect the stability of the negative pressure, and the capacity of 1L is an optional type with the best negative pressure fluctuation during printing, which plays a role of buffering during the negative pressure to ensure the stability of the negative pressure, and the pressure sensor 917 is used for reflecting the value of the pressure; a negative pressure shunt tube 919, which is connected with the second buffer tank 918, wherein the negative pressure shunt tube 919 can connect the negative pressure to the ink outlet chambers 908 by dividing the negative pressure into four parts, so that each ink outlet chamber 908 is prevented from being connected with the second buffer tank 918, the connection structure is simplified, the space is saved, and the redundancy is avoided; a second straight-through electromagnetic valve 920 connected with the negative pressure shunt tube 919; the second straight-through electromagnetic valve 920 is also connected with the ink outlet chamber 908; a second vacuum gauge 921 connected to the second buffer tank 918. In the embodiment of the invention, the ink adding component supplies ink to the secondary ink box, the positive pressure component provides positive pressure for the ink inlet cavity 905 of the secondary ink box, the negative pressure control component provides negative pressure for the ink outlet cavity 908 of the secondary ink box, the circulating ink pump 909 and the circulating negative pressure component provide circulating negative pressure for the ink inlet cavity 905, the spray head 32 and the ink outlet cavity 908, and the whole ink path system 9 has a simple structure and high stability, and can effectively improve the printing quality; further, when the head 32 needs to be cleaned, the first straight-through electromagnetic valve 912 and the second straight-through electromagnetic valve 920 may be closed, and ink supply may be stopped at the same time, and cleaning of the head 32 may be assisted by positive pressure of the positive pressure control assembly, and after cleaning is completed, the assembly of the three-way valve may be communicated from the ink inlet chamber 905 to the ink outlet chamber 908, so that switching of positive and negative pressures is completed, and cleaning of the head 32 is stopped; the three-way valve can be switched between positive pressure and negative pressure as required. Further, the secondary ink cartridge and/or the ink cartridge 901 is provided with a heating device 928, and the heating device 928 can monitor the temperature of the ink and can heat the ink. Specifically heating device 928 has the control by temperature change function, and its temperature that can the ink is monitored, and when the temperature of ink was crossed lowly, the ink can change viscosity, can influence printing quality like this, and heating device can heat the ink this moment, can improve the stability of ink like this, makes the viscosity of ink can not take place big change to guarantee the stability of the smoothness nature and the colour of ink

As shown in fig. 1, as a preferable mode of the embodiment of the present invention, the drying mechanism 5 is disposed below the printing platform mechanism 4. Therefore, the space of the ultra-high-speed digital printing machine can be saved, the structure of the ultra-high-speed digital printing machine is smaller and more exquisite, and the integration level is higher. A second electronic frame 16 is arranged between the printing platform mechanism 4 and the drying mechanism 5, and a second brush roller 17 is slidably arranged on the second electronic frame 16. The principle of implementing the second brush roller 17 slidably disposed on the second electronic frame 16 is the same as that of the first electronic frame 21, and there is no surplus here, and by disposing the second brush roller 17, it is possible to effectively prevent the medium C from wrinkling between the drying mechanism 5 and the printing platform mechanism 4, and at the same time, to play a role of maintaining constant tension and turning, and a third corner roller 18 for assisting the corner is disposed between the drying mechanism 5 and the second brush roller 17, and the third corner roller 18 is rotatably disposed on the frame 1, and the drying mechanism 5 is of the prior art, and there is no surplus here. Further, a third brush roller 19 is further arranged between the drying mechanism 5 and the winding mechanism, the third brush roller 19 is rotatably arranged on the frame 1, the third brush roller 19 also effectively prevents the medium C from wrinkling, so that the medium C is smoothly wound on the winding mechanism, the winding mechanism comprises a winding roller 12 and a winding motor (not shown), and an output end of the winding motor is connected with the winding roller 12 to control rotation of the winding roller 12.

As shown in fig. 1, as a preferred mode of the embodiment of the present invention, the head holder 31 is further provided with an ink extracting device 8 for extracting ink drifted during printing to avoid waste of ink, and the principle of the ink extracting device 8 is the prior art, and no redundancy is provided here.

Example two

As shown in fig. 8, on the basis of the first embodiment, the first embodiment of the present invention provides an ultra-high speed digital printing machine, and a second constant tension roller mechanism 113 is disposed between the winding mechanism and the drying mechanism 5. The second constant tension roller mechanism 113 can further maintain the medium C in a constant tension state, the principle of the second constant tension roller mechanism 113 is the same as that of the first constant tension roller mechanism 2, and it is not redundant here, a fourth corner roller 110 for a corner and a fourth brush roller 111 for preventing wrinkles are further provided between the second constant tension roller mechanism 113 and the drying mechanism 5, and the fourth corner roller 110 and the fourth brush roller 111 are rotatably provided on the frame 1.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An ultra-high speed digital printing machine, comprising:

a frame (1);

the unwinding mechanism is arranged on the rack (1) and used for outputting a medium;

the first constant tension roller mechanism (2) is arranged on the rack (1) and used for conveying the medium and keeping the medium in a constant tension state;

the printing device (3) is arranged on the rack (1) and is used for printing a medium;

the printing platform mechanism (4) is arranged on the rack (1), is positioned below the printing device (3) and is used for conveying media and matching the printing device (3) to complete printing on the media, the printing platform mechanism (4) comprises a vacuum adsorption platform (41), a driving roller (42) and a driven roller (43), and the driving roller (42) and the driven roller (43) are respectively arranged on two sides of the vacuum adsorption platform (41) along a first direction;

the drying mechanism (5) is arranged on the rack (1) and is used for drying ink on the medium after printing is finished;

and the winding mechanism is arranged on the rack (1) and used for accommodating media.

2. The ultra high speed digital printing machine according to claim 1, wherein the first constant tension roller mechanism (2) is disposed between the unwinding mechanism and the printing platform mechanism (4);

the first constant tension roller mechanism (2) comprises at least two first electronic frames (21) which are arranged side by side, a brake roller (22) is arranged on each first electronic frame (21) in a sliding mode along the length direction of each first electronic frame (21), and a first corner roller (23) is arranged above the middle of each two adjacent first electronic frames (21).

3. The ultra high speed digital printing machine according to claim 2, further comprising a first brush roller (14), said first brush roller (14) being disposed between said first constant tension roller mechanism (2) and said printing platform mechanism (4).

4. The ultra high speed digital printing machine according to claim 3, further comprising an angle wrapping roller (15), wherein the angle wrapping roller (15) is arranged between the first brush roller (14) and the driving roller (42), and the center of the angle wrapping roller (15), the center of the driving roller (42) and the center of the driven roller (43) are connected to form an acute angle.

5. An ultra high speed digital printing machine according to claim 1, further comprising a nozzle vacuum moisturizing device (6), wherein the nozzle vacuum moisturizing device (6) is arranged on the frame (1) and can slide to the lower part of the printing device (3) along the first direction.

6. An ultra high speed digital printing machine according to claim 5, wherein said nozzle vacuum moisturizing device (6) is slidably provided with a nozzle cleaning device (7), said nozzle cleaning device (7) being slidable in a second direction.

7. An ultra high speed digital printing machine according to claim 1, further comprising an ink path system (9), said ink path system (9) being connected to said printing apparatus (3).

8. An ultra high speed digital printing machine according to any one of claims 1 to 7, wherein said drying mechanism (5) is disposed below said printing platform mechanism (4).

9. An ultra high speed digital printing machine according to claim 8, wherein a second electronic frame (16) is arranged between said printing platform mechanism (4) and said drying mechanism (5), and a second brush roller (17) is slidably arranged on said second electronic frame (16).

10. An ultra high speed digital printing machine according to claim 8, wherein a second constant tension roller mechanism (113) is provided between the winding mechanism and the drying mechanism (5).