CN112810315A

CN112810315A - Novel beat scanning digital printing machine of paper

Info

Publication number: CN112810315A
Application number: CN202110183070.5A
Authority: CN
Inventors: 李立涛
Original assignee: Guangdong Lichai Digital Technology Co Ltd
Current assignee: Guangdong Lichai Digital Technology Co Ltd
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2021-05-18

Abstract

The invention relates to the technical field of digital printing, and discloses a novel paper-printing scanning digital printing machine which comprises a rack; the spray head assembly comprises a spray head for printing; the printing platform mechanism is positioned below the spray head assembly; the ink path system with circulation supplies ink to the spray head, and the spray head is an Epson non-industrial spray head. The ink supply assembly of the invention provides ink for the whole ink path system with circulation of the spray head; the ink circulation component is used for controlling the relation between the circulation of the spray head and the 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. Through ink circulation subassembly and positive negative pressure control assembly, can make whole area endless ink route system keep stable negative pressure to make whole digital printing machine supply ink stable, and simple structure, effectual improvement production efficiency.

Description

Novel beat scanning digital printing machine of paper

Technical Field

The invention relates to the technical field of digital printing, in particular to a novel paper-beating scanning 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 application principle of the digital printing machine in the market at present is an ink path system according to the siphon principle, the principle is complex in structure and poor in stability, the ink path is unstable along with the change of the concentration, viscosity and temperature of ink, and the phenomena of color change, ink breakage, ink wire breakage, ink shortage and the like can occur in the printing of a nozzle; the production efficiency of the equipment is seriously influenced, and great loss is caused to a user factory.

Disclosure of Invention

Based on the above, the invention aims to provide a novel paper-printing scanning digital printing machine, which has a simple and stable ink path system with circulation and can effectively improve the production efficiency.

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

the invention provides a novel paper beating scanning digital printing machine, which comprises:

a frame;

the spray head assembly comprises a spray head, the spray head assembly is arranged on the rack, and the spray head assembly is used for printing;

the printing platform mechanism is arranged on the rack and is positioned below the spray head assembly;

the ink path system with circulation is arranged on the rack, is connected with the spray head and supplies ink to the spray head, and the spray head is an Epson non-industrial spray head;

the ink path system with circulation includes:

an inking assembly that provides ink to the recirculating ink path system;

the ink circulation assembly is connected with the ink adding assembly and is used for controlling the relation between the circulation of the spray head and the 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.

Wherein the ink circulation assembly comprises:

the two-stage ink box comprises an ink inlet cavity and an ink outlet cavity, wherein liquid level sensors are arranged in the ink inlet cavity and the ink outlet cavity, the ink inlet cavity is connected with an ink inlet of the nozzle, and the ink outlet cavity is connected with an ink outlet of the nozzle;

the butterfly filter is arranged between the ink inlet cavity and the ink inlet of the spray head;

the circulating ink pump is connected with the ink outlet cavity;

the degassing lung is respectively connected with the circulating ink pump and the ink inlet cavity, and is also connected with a circulating negative pressure component;

the circulating negative pressure part comprises:

a first buffer tank connected to the degassing lung, the first buffer tank being made of a stainless steel material, and a capacity of the first buffer tank being 1L;

the first vacuum meter is connected with the first buffer tank;

a first direct-current solenoid valve connected to the first buffer tank;

a vacuum pump connected with the first direct-current solenoid valve.

Wherein the inking assembly comprises:

the ink adding barrel is internally provided with a liquid level sensor;

a first filter connected with the ink adding barrel;

an ink supply pump connected to the first filter;

and one end of the one-way valve is connected with the ink supply pump, and the other end of the one-way valve is connected with the ink inlet cavity.

Wherein, positive negative pressure control assembly includes malleation control assembly and negative pressure control assembly, malleation control assembly with it is connected to advance the china ink chamber, negative pressure control assembly with it is connected to go out the china ink chamber.

The positive pressure control assembly includes:

a second filter in communication with the outside air;

the ink pressing pump is connected with the second filter;

the pressure regulating valve is connected with the ink pressing pump;

the three-way valve assembly is connected with the pressure regulating valve and is also respectively connected with the ink inlet cavity and the ink outlet cavity;

the positive pressure gauge is connected with the pressure regulating valve;

the negative pressure control assembly comprises:

a third filter connected to the outside air;

a negative pressure generator connected to the third filter;

the second buffer tank is connected with the negative pressure generator, the second buffer tank is also connected with a pressure sensor, the second buffer tank is made of stainless steel, and the capacity of the second buffer tank is 1L;

the negative pressure flow dividing pipe is connected with the second buffer tank;

the second straight-through electromagnetic valve is connected with the negative pressure flow dividing pipe; the second straight-through electromagnetic valve is also connected with the ink outlet cavity;

a second vacuum gauge connected to the second buffer tank.

Wherein the rack comprises a first rack and a second rack;

the shower nozzle subassembly still includes the slide rail, the slide rail along the first direction set up in the first frame, sliding connection shower nozzle support on the slide rail, still install linear electric motor on the slide rail, linear electric motor's output is connected the shower nozzle support, the shower nozzle set up in on the shower nozzle support.

The printing platform mechanism comprises a vacuum adsorption platform, a driving roller and a driven roller, the driving roller and the driven roller are respectively located on two sides of the vacuum adsorption platform, a driving roller motor is further installed on the first rack, and the output end of the driving roller motor is connected with one end of the driving roller.

The second rack is provided with an unwinding mechanism and a winding mechanism;

the unwinding mechanism comprises an unwinding roller and an unwinding motor, and the output end of the unwinding motor is connected with the unwinding roller;

the winding mechanism comprises a winding roller and a winding motor, and the output end of the winding motor is connected with the winding roller;

the winding mechanism is located on the rear side below the unwinding mechanism.

And an arc-shaped notch is formed in one side, close to the driving roller, of the vacuum adsorption platform.

Wherein, the spray head is an Epson S3220 spray head or an Epson I3220 spray head.

The secondary ink box and/or the ink adding barrel are/is provided with a heating device, and the heating device can monitor the temperature of the ink and can heat the ink.

The invention provides a novel paper-printing scanning digital printing machine, wherein a spray head assembly is used for printing and is provided with a circulating ink path system, the circulating ink path system is connected with a spray head and is used for supplying ink to the spray head, and the spray head is an Epson non-industrial spray head; the ink supply assembly of the invention provides ink for the whole ink path system with circulation of the spray head; the ink circulation component is used for controlling the relation between the circulation of the spray head and the 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. Through ink circulation subassembly and positive negative pressure control assembly, can make whole area endless ink route system keep stable negative pressure to make whole digital printing machine supply ink stable, and simple structure, effectual improvement production efficiency.

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 a novel paper-beating scanning digital printing machine according to an embodiment of the invention;

FIG. 2 is a schematic view of another visual structure of the novel paper-printing scanning digital printing machine according to the embodiment of the present invention;

FIG. 3 is a top view of a novel paper-printing scanning digital printing machine according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a cross-section of FIG. 3 taken along A-A1 of a mating print medium;

FIG. 5 is a schematic structural view of an ink path system with circulation according to an embodiment of the present invention;

FIG. 6 is a schematic view showing a belt heating device of an ink path system with circulation according to an embodiment of the present invention.

In the figure:

x, a first direction;

1. a first frame; 2. a slide rail; 3. a spray head holder; 31. a spray head; 4. a linear motor; 5. a print platform mechanism; 51. a vacuum adsorption platform; 52. a drive roll; 53. a driven roller; 54. a drive roll motor; 6. a second frame; 61. an unwinding mechanism; 611. an unwinding motor; 612. unwinding rollers; 62. a winding mechanism; 621. a winding motor; 622. a wind-up roll; 7. a nozzle base; 81. a first brush roller; 82. a second brush roller; 83. a third brush roller; 84. a first corner roll; 85. a wrap angle roller; 86. a second corner roll; 87. a third corner roll; 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.

As shown in fig. 1 to 5, an embodiment of the present invention provides a novel scanning digital printing machine for printing paper, including:

a frame;

the spray head assembly comprises a spray head 31, the spray head assembly is arranged on the rack, and the spray head assembly is used for printing;

the printing platform mechanism 5 is arranged on the rack and is positioned below the spray head assembly;

the circulating ink path system is arranged on the rack, is connected with the spray head 31 and supplies ink to the spray head 31, and the spray head 31 is an Epson non-industrial spray head; preferably, the spray head 31 is an epressen S3220 spray head or the spray head 31 is an epressen I3220 spray head.

The ink path system with circulation includes:

an inking assembly that provides ink to the recirculating ink path system;

the ink circulation component is connected with the ink adding component and is used for controlling the relation between the circulation of the spray head 31 and the pressure difference;

The spray head assembly is used for printing, the ink path system with circulation is connected with the spray head 31 and supplies ink to the spray head 31, and the spray head 31 is an Epson non-industrial spray head; the ink adding component provides ink for the ink path system with circulation; an ink circulation assembly for controlling the circulation of the head 31 in relation to the 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. Through ink circulation subassembly and positive negative pressure control assembly, can make whole area endless ink route system keep stable negative pressure to make whole digital printing machine supply ink stable, and simple structure, effectual improvement production efficiency.

As shown in fig. 5, as a preferable mode of the embodiment of the present invention, 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 31, and the ink outlet cavity 908 is connected with an ink outlet of the nozzle 31; specifically, the ink adding assembly is connected with the ink inlet cavity 905 to supply ink to the whole ink circulation assembly, and the ink is transmitted to the ink inlet of the nozzle 31 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 31, and the butterfly filter 906 can filter out impurities with a size of more than 5 μm in the ink, so that the nozzle 31 is prevented from being blocked due to overlarge impurity particles when the nozzle 31 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 between the circulation of the nozzle and the pressure difference is controlled by adjusting the flow 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, the stability of the whole ink circulation assembly is affected, and the printing effect of the nozzle 31 is also affected, 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.

As a preferable mode of the embodiment of the present invention, the ink supply unit includes: 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.

As a preferred mode of the embodiment of the present invention, the positive and negative pressure control assembly includes 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 31 and the ink outlet cavity 908, and the whole ink path system with circulation has simple structure and high stability, and can effectively improve the printing quality; further, when the nozzle 31 needs to be cleaned, the first straight-through electromagnetic valve 912 and the second straight-through electromagnetic valve 920 can be closed, ink supply is stopped, cleaning of the nozzle 31 is assisted by positive pressure of the positive pressure control assembly, after cleaning is completed, the assembly of the three-way valves can be communicated to the ink outlet chamber 908 from the ink inlet chamber 905, switching of positive pressure and negative pressure is completed, and cleaning of the nozzle 31 is stopped; the three-way valve can be switched between positive pressure and negative pressure as required.

As shown in fig. 1 to 4, as a preferable mode of the embodiment of the present invention, the rack includes a first rack 1 and a second rack 6;

the sprayer assembly further comprises a sliding rail 2, the sliding rail 2 is arranged on the first rack 1 along a first direction X, a sprayer support 3 is connected onto the sliding rail 2 in a sliding mode, a linear motor 4 is further mounted on the sliding rail 2, the output end of the linear motor 4 is connected with the sprayer support 3, and the sprayer 31 is arranged on the sprayer support 3; preferably, the nozzles 31 are detachably arranged on the nozzle holder 3, and two adjacent nozzles 31 are arranged in a staggered manner, so that the feathering phenomenon at the edge of the medium can be avoided during printing.

In the embodiment of the invention, a medium to be printed is transmitted to the printing platform mechanism 5 for printing, the linear motor 4 drives the spray head support 3 to slide on the slide rail 2 above the printing platform mechanism 5, and the spray head 31 on the spray head support 3 prints the medium on the printing platform mechanism 5. Preferably, the first frame 1 is further provided with a nozzle seat 7 corresponding to the nozzle 31. Specifically, the nozzle base 7 is installed on the first rack 1, a corresponding driving component (not shown) is arranged at the bottom of the nozzle base 7, the driving component may be an air cylinder or a motor, and the like, an output end of the driving component is connected with the nozzle base 7, when spray painting is not needed, the nozzle support 3 slides right above the nozzle base 7, the driving motor is started to enable the nozzle base 7 to move upwards, and the nozzle base 7 is attached to the nozzle 31 to protect the nozzle 31.

As a preferable mode of the embodiment of the present invention, the printing platform mechanism 5 includes a vacuum adsorption platform 51, a driving roller 52 and a driven roller 53, the driving roller 52 and the driven roller 53 are respectively located at two sides of the vacuum adsorption platform 51, the first frame 1 is further provided with a driving roller motor 54, and an output end of the driving roller motor 54 is connected to one end of the driving roller 52. Preferably, the vacuum adsorption platform 51 is provided with a plurality of vacuum adsorption holes. Specifically, the medium that waits to print carries print platform mechanism 5, and drive roll motor 54 drive roll 52 rotates and provides power to the continuous medium that will wait to print carries vacuum adsorption platform 51, and the medium that the printing was treated to vacuum adsorption platform 51's top shower nozzle 31 this moment carries out the air brushing, and the vacuum adsorption hole will wait to print adsorbs on vacuum adsorption platform 51, can prevent the print media fold, thereby influence the printing quality, it needs to explain, it is prior art to form the principle of vacuum adsorption, and here is no longer surplus. Preferably, an arc-shaped notch is formed in one side of the vacuum adsorption platform 51 close to the driving roller 52, and specifically, the driving roller 52 is embedded into the arc-shaped notch, so that the distance of the gap between the driving roller 52 and the vacuum adsorption platform 51 can be shortened, and a medium is prevented from being involved into the gap to cause wrinkles, thereby affecting the printing quality.

As a preferable mode of the embodiment of the present invention, in order to be applied to a printing medium of a roll material, the second frame 6 is provided with an unwinding mechanism 61 and a winding mechanism 62; the unwinding mechanism 61 comprises an unwinding roller 612 and an unwinding motor 611, and an output end of the unwinding motor 611 is connected with the unwinding roller 612;

the winding mechanism 62 comprises a winding roller 622 and a winding motor 621, and the output end of the winding motor 621 is connected with the winding roller 622; the winding mechanism 62 is located at the rear side below the unwinding mechanism 61.

Specifically, the roll media to be printed are arranged on the unwinding roller 612, and the unwinding motor 611 rotates to drive the unwinding roller 612 to rotate, so that the media to be printed are transmitted to the printing platform mechanism 5; the winding motor 621 rotates to drive the winding roller 622 to rotate, so that the printed medium is wound; winding mechanism 62 is located the rear side of unwinding mechanism 61's below can be effectual saves space for whole digital printing machine is littleer, and the degree of integrating is higher.

In the embodiment of the present invention, as shown in fig. 4, the second frame 6 is further installed with a first corner roller 84 and a third corner roller 83, the first frame 1 is further installed with a first brush roller 81, a corner wrapping roller 85, a second brush roller 82, a second corner roller 86 and a third corner roller 87, the first corner roller 84, the third corner roller 87, the first brush roller 81 and the corner wrapping roller 85 are disposed between the unwinding mechanism 61 and the printing platform mechanism 5, the unwinding mechanism 61 sequentially attaches the fed medium to the first corner roller 84, the third corner roller 87, the first brush roller 81 and the corner wrapping roller 85 and then transfers the medium to the printing platform mechanism 5, the first brush roller 81 can effectively prevent the medium from lifting, the corner wrapping roller 85 is installed with a magnetic powder brake, which is mainly used to increase the resistance of the fed medium so as to ensure that the medium does not slip when entering the driving roller 52, and the driving roller 52 powers the medium to transfer the medium to the driven roller 53, the driven roller 53 transfers the medium to the second brush roller 82, the second brush roller 82 is provided at the bottom of the front side of the first frame 1, and the second brush roller 82 is slidable, so that the medium can be maintained in a tensioned state, preferably, the third corner roller 87 is also slidable, so that a medium can be kept in a tensioned state, the sliding structure of the second brush roller 82 and the third corner roller 87 is realized in the prior art, surplus is avoided, the second corner roller 86 is arranged at the bottom of the first frame 1, the medium passes through the second brush roller 82 and then is attached to the second corner roller 86 from the bottom of the first frame 1 to reach the third brush roller 83, the third brush roller 83 can also effectively prevent the medium from wrinkling, and the medium is rolled in the rolling mechanism 62 after passing through the third brush. In the embodiment of the present invention, a non-tape type medium conveyance system is adopted, and printing is performed by conveying the medium itself.

As shown in fig. 6, as a preferable mode of the embodiment of the present invention, the secondary ink cartridge and/or the ink adding barrel 901 is provided with a heating device 928, and the heating device 928 can monitor the temperature of the ink and 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 smoothness nature of ink and the stability of colour.

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. The utility model provides a novel scanning digital printing machine of beating paper which characterized in that includes:

a frame;

the spray head assembly comprises a spray head (31), the spray head assembly is arranged on the rack, and the spray head assembly is used for printing;

the printing platform mechanism (5) is arranged on the rack and is positioned below the spray head assembly;

the ink path system with circulation is arranged on the rack, is connected with the spray head (31) and supplies ink to the spray head (31), and the spray head (31) is an Epson non-industrial spray head;

the ink path system with circulation includes:

an inking assembly that provides ink to the recirculating ink path system;

the ink circulation assembly is connected with the ink adding assembly and is used for controlling the relation between the circulation of the spray head (31) and the pressure difference;

2. The novel paperless digital printer according to claim 1, wherein said ink circulation assembly comprises:

the two-stage 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 ink inlet cavity (905) is connected with an ink inlet of the nozzle (31), and the ink outlet cavity (908) is connected with an ink outlet of the nozzle (31);

a butterfly filter (906) provided between the ink inlet chamber (905) and an ink inlet of the head (31);

a circulating ink pump (909) connected to the ink outlet chamber (908);

a degassing lung (910) which is respectively connected with the circulating ink pump (909) and the ink inlet cavity (905), wherein a circulating negative pressure component is also connected with the degassing lung (910);

the circulating negative pressure part comprises:

a first buffer tank (911) connected to the degassing lung (910), wherein the first buffer tank (911) is made of a stainless steel material, and the capacity of the first buffer tank (911) is 1L;

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-current solenoid valve (912).

3. The novel paperless digital decorating machine as claimed in claim 2, wherein the inking assembly comprises:

the ink adding barrel (901) is internally provided with a liquid level sensor (927);

a first filter (902) connected to the ink supply barrel (901);

an ink supply pump (903) connected to the first filter (902);

and one end of the one-way valve (904) is connected with the ink supply pump (903), and the other end of the one-way valve (904) is connected with the ink inlet cavity (905).

4. The novel paper beating scanning digital printing machine according to claim 3, wherein the positive and negative pressure control assembly comprises a positive pressure control assembly and a negative pressure control assembly, the positive pressure control assembly is connected with the ink inlet cavity (905), and the negative pressure control assembly is connected with the ink outlet cavity (908).

The positive pressure control assembly includes:

a second filter (922), the second filter (922) being in communication with outside air;

an ink pressure pump (923) connected to the second filter (922);

a pressure regulating valve (924) connected to the ink pump (923);

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;

a positive pressure gauge (925) connected to the pressure regulating valve (924);

the negative pressure control assembly comprises:

a third filter (915) connected to the outside air;

a negative pressure generator (916) connected to the third filter (915);

a second buffer tank (918) connected to the negative pressure generator (916), the second buffer tank (918) being further connected to a pressure sensor (917), the second buffer tank (918) being made of a stainless steel material, and a capacity of the second buffer tank (918) being 1L;

a negative pressure shunt pipe (919) connected with the second buffer tank (918);

a second straight-through solenoid valve (920) connected with the negative pressure shunt pipe (919); the second straight-through electromagnetic valve (920) is also connected with the ink outlet cavity (908);

a second vacuum gauge (921) coupled to the second buffer tank (918).

5. A new type of paper-beating scanning digital printing machine according to any one of claims 1 to 4, characterized in that said frame comprises a first frame (1) and a second frame (6);

the shower nozzle subassembly still includes slide rail (2), slide rail (2) along first direction (X) set up in on first frame (1), sliding connection has shower nozzle support (3) on slide rail (2), still install linear electric motor (4) on slide rail (2), the output of linear electric motor (4) is connected shower nozzle support (3), shower nozzle (31) set up in on shower nozzle support (3).

6. The novel paper-beating scanning digital printing machine according to claim 5, characterized in that the printing platform mechanism (5) comprises a vacuum adsorption platform (51), a driving roller (52) and a driven roller (53), the driving roller (52) and the driven roller (53) are respectively located on two sides of the vacuum adsorption platform (51), a driving roller motor (54) is further installed on the first frame (1), and an output end of the driving roller motor (54) is connected with one end of the driving roller (52).

7. The novel paper-beating scanning digital printing machine according to claim 6, characterized in that an unwinding mechanism (61) and a winding mechanism (62) are arranged on the second frame (6);

the unwinding mechanism (61) comprises an unwinding roller (612) and an unwinding motor (611), and the output end of the unwinding motor (611) is connected with the unwinding roller (612);

the winding mechanism (62) comprises a winding roller (622) and a winding motor (621), and the output end of the winding motor (621) is connected with the winding roller (622);

the winding mechanism (62) is located on the rear side below the unwinding mechanism (61).

8. The novel paper beating scanning digital printing machine is characterized in that an arc-shaped notch is formed in one side, close to the driving roller (52), of the vacuum adsorption platform (51).

9. The novel paper beating scanning digital printing machine according to claim 5, characterized in that the spray head (31) is an Epson S3220 spray head or an Epson I3220 spray head.

10. A novel paper beating scanning digital printing machine according to claim 3, characterized in that the secondary cartridge and/or the inking barrel (1) is provided with a heating device (928), and the heating device (928) can monitor the temperature of the ink and heat the ink.