Ink pressing process equipment matched with digital printing

Abstract

The invention discloses ink pressing process equipment matched with digital printing, and relates to the technical field of digital printing ink pressing process improvement. The printing machine comprises a rack, a printing trolley, an ink pressing mechanism, a cloth pressing roller, a guide belt, a cleaning mechanism, a sizing mechanism, a gear transmission mechanism and an adjusting mechanism. The printing trolley is arranged on the left side above the rack, the ink pressing mechanism is installed on the rack on the left side of the printing trolley, the cloth pressing roller is installed on the rack on the right side of the printing trolley, the guide belt is installed on the upper surface of the rack, and the ink pressing mechanism and the cloth pressing roller are located above the guide belt. The cleaning mechanism is arranged above the ink pressing mechanism, the sizing mechanism is arranged on the inner side of the ink pressing mechanism, the adjusting mechanism is arranged on the left side of the rack, and the adjusting mechanism is in gear transmission connection with the ink pressing mechanism and the sizing mechanism through a gear transmission mechanism. High-quality digital printing can be achieved, the pressure during digital printing can be reasonably controlled, printing dots are accurate, printed patterns are clear, printing ink is fully transferred, and the printing ink can permeate fabric after printing is completed.

Description

Technical Field

[0001] The invention relates to the technical field of digital printing ink pressing process improvement, in particular to an ink pressing process device for supporting digital printing. Background Art

[0002] The ink pressing process refers to the process of transferring ink from the printing plate or anilox roller to the substrate by applying a certain pressure during the printing process. In the ink pressing process, the size and uniformity of the printing pressure have an important impact on the printing quality. If the printing pressure is too high, it will cause excessive ink transfer, resulting in problems such as dot enlargement and blurred image; if the printing pressure is too low, it will lead to insufficient ink transfer. After digital printing, the ink can only adhere to the surface of the fabric but cannot penetrate into the fabric, causing problems such as dot loss and unclear image. Therefore, in the ink pressing process, it is necessary to reasonably adjust the printing pressure according to factors such as printing materials, printing equipment, and printing process to ensure printing quality. Summary of the invention

[0003] The purpose of the present invention is to provide a matching ink pressing process equipment for digital printing in view of the defects and shortcomings of the prior art, which can achieve high-quality digital printing, reasonably control the pressure during digital printing, make the printing dots accurate and the printing patterns clear, fully transfer the ink, and allow the ink to penetrate the fabric after printing, so that the printing effect reaches the best level, and the overall structure has high working stability and can be used for digital printing work continuously for a long time.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: it comprises a frame 1, a printing carriage 2, an ink pressing mechanism 3, a cloth pressing roller 4, a guide belt 5, a cleaning mechanism 6, a sizing mechanism 7, a gear transmission mechanism 8, and an adjusting mechanism 9; the printing carriage 2 is provided on the upper left side of the frame 1, the ink pressing mechanism 3 is installed on the frame 1 on the left side of the printing carriage 2, the cloth pressing roller 4 is installed on the frame 1 on the right side of the printing carriage 2, the guide belt 5 is installed on the upper surface of the frame 1, and the ink pressing mechanism 3 and the cloth pressing roller 4 are located above the guide belt 5; a cleaning mechanism 6 is provided above the ink pressing mechanism 3, a sizing mechanism 7 is provided inside the ink pressing mechanism 3, and the adjusting mechanism 9 is provided on the left side of the frame 1, and the adjusting mechanism 9 is connected to the ink pressing mechanism 3 and the sizing mechanism 7 through the gear transmission mechanism 8.

[0005] Furthermore, the ink pressing mechanism 3 is composed of an ink pressing mechanism slurry inlet 301, an adjustable scraper 302, an ink pressing roller 303, a support roller 304, an ink pressing roller driving motor 305, a cloth pressing cylinder 306, and an ink pressing roller gear 307. The ink pressing mechanism slurry inlet 301 is located at the top, the adjustable scraper 302 is arranged below the ink pressing mechanism slurry inlet 301, one end of the adjustable scraper 302 is in contact with the ink pressing roller 303 located on the upper surface of the guide belt 5, a support roller 304 is provided on the lower surface of the guide belt 5 corresponding to the position of the ink pressing roller 303, the support roller 304 is transmission-connected to the ink pressing roller gear 307 on the side of the frame 1, and an ink pressing roller driving motor 305 is installed on the inner side of the support roller 304, and a cloth pressing cylinder 306 is installed on the outer side of the frame 1 corresponding to the position of the support roller 304, and the cloth pressing cylinder 306 is connected to the adjusting mechanism 9, so that the adjusting mechanism 9 moves up and down to adjust the lifting and lowering position of the ink pressing mechanism 3.

[0006] Furthermore, the cleaning mechanism 6 is composed of a cleaning mechanism driving motor 601, a cleaning mechanism water inlet 602, a cleaning mechanism water outlet 603, a brush roller 604, an internal cleaning scraper 605, an entry side scraper 606, an exit side scraper 607, and a cleaning mechanism housing 608; the cleaning mechanism housing 608 is located above the ink pressing roller 303, the cleaning mechanism driving motor 601 is located at one end of the cleaning mechanism housing 608, and a cleaning mechanism water inlet 602 is provided in the middle of the cleaning mechanism housing 608. A cleaning mechanism water outlet 603 is provided on each side of the cleaning mechanism water inlet 602, an entry side scraper 606 is provided at the upper part of the cleaning mechanism shell 608 in contact with the ink pressing roller 303, a brush roller 604 is provided inside the cleaning mechanism shell 608, the brush roller 604 is located on the left side of the ink pressing roller 303, an exit side scraper 607 is provided at the contact position between the brush roller 604 and the ink pressing roller 303, and an internal cleaning scraper 605 that is in direct contact with the ink pressing roller 303 is provided in the middle position inside the cleaning mechanism shell 608.

[0007] Furthermore, the sizing mechanism 7 is composed of an optional scraper 701, a sizing anilox roller 701, a sizing rubber roller 702, a liquid receiving tray 703, anilox roller gear 704, and a rubber roller gear 705; the sizing anilox roller 701 and the sizing rubber roller 702 are located between the slurry inlet 301 of the ink pressing mechanism and the ink pressing roller 303, the liquid receiving tray 703 is located below the slurry inlet 301 of the ink pressing mechanism, the anilox roller gear 704 and the rubber roller gear 705 are located on the side of the frame 1 and are respectively connected to the anilox roller gear 704 and the rubber roller gear 705 through gear transmission.

[0008] Furthermore, the gear transmission mechanism 8 is composed of an ink-pressing roller gear 307, an anilox roller gear 704, and a rubber roller gear 705, and the ink-pressing roller gear 307, the anilox roller gear 704, and the rubber roller gear 705 are used for the gear transmission connection between the ink-pressing roller 303, the sizing anilox roller 701, the sizing rubber roller 702 and the ink-pressing roller drive motor 305, so that the overall equipment realizes the rotation of the motor to drive the rotation of each roller.

[0009] Working principle of the present invention: Compared with traditional digital printing equipment, the equipment of the present invention is additionally provided with a cleaning mechanism 6 and a sizing mechanism 7 on the basis of an ink pressing roller and a cloth pressing roller. The ink can be deeply penetrated into the cloth through the double-roller structure and the detachable and optional scraper on the sizing mechanism 7, and the ink can be evenly penetrated into the cloth through the brush roller and multiple scrapers in the cleaning structure 6.

[0010] After adopting the above technical scheme, the beneficial effects of the present invention are as follows: it adopts a double-roller structure, can achieve high-quality digital printing, can reasonably control the pressure during digital printing, so that the printing dots are accurate and the printing patterns are clear, the ink is fully transferred, and the ink can penetrate the fabric after printing is completed, the printing effect reaches the best level, and the overall structure has high working stability, can be continuously used for digital printing work for a long time, has high inventiveness, provides substantial technological progress in the field of digital printing technology, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0013] Figure 2 is a cross-sectional view of the present invention;

[0014] Figure 3 It is a schematic diagram of the connection structure of the ink-pressing roller driving motor 305 and the cloth-pressing cylinder 306 in the present invention;

[0015] Figure 4 It is a schematic diagram of the connection structure of the ink pressure roller gear 307 in the present invention;

[0016] Figure 5 It is a schematic diagram of the structure of the cleaning mechanism 6 in the present invention;

[0017] Figure 6It is a schematic diagram of the internal structure of the cleaning mechanism 6 in the present invention;

[0018] Figure 7 It is a structural schematic diagram of the sizing mechanism 7 in the present invention;

[0019] Figure 8 It is a schematic diagram of the connection structure of the anilox roller gear 704 and the rubber roller gear 705 in the present invention.

[0020] Explanation of the reference numerals: frame 1, printing carriage 2, ink pressing mechanism 3, cloth pressing roller 4, guide belt 5, cleaning mechanism 6, sizing mechanism 7, gear transmission mechanism 8, adjustment mechanism 9, slurry inlet 301 of ink pressing mechanism, adjustable scraper 302, ink pressing roller 303, support roller 304, ink pressing roller drive motor 305, cloth pressing cylinder 306, ink pressing roller gear 307, cleaning mechanism drive motor 601, cleaning mechanism water inlet 602, cleaning mechanism water outlet 603, brush roller 604, internal cleaning scraper 605, entry side scraper 606, exit side scraper 607, cleaning mechanism housing 608, sizing anilox roller 701, sizing rubber roller 702, liquid receiving tray 703, anilox roller gear 704, rubber roller gear 705. DETAILED DESCRIPTION

[0021] See also Figure 1-8 As shown, the technical solution adopted in this specific embodiment is: it includes a frame 1, a printing carriage 2, an ink pressing mechanism 3, a cloth pressing roller 4, a guide belt 5, a cleaning mechanism 6, a sizing mechanism 7, a gear transmission mechanism 8, an adjustment mechanism 9, an ink pressing mechanism slurry inlet 301, an adjustable scraper 302, an ink pressing roller 303, a support roller 304, an ink pressing roller drive motor 305, a cloth pressing cylinder 306, an ink pressing roller gear 307, a cleaning mechanism drive motor 601, a cleaning mechanism water inlet 602, a cleaning mechanism water outlet 603, a brush roller 604, an internal cleaning scraper 605, an entry side scraper 606, an exit side scraper 607, a cleaning mechanism housing 608, and an optional Scraper 701, sizing anilox roller 701, sizing rubber roller 702, liquid receiving tray 703, anilox roller gear 704, rubber roller gear 705; a printing carriage 2 is provided on the left side above the frame 1, an ink pressing mechanism 3 is installed on the frame 1 on the left side of the printing carriage 2, a cloth pressing roller 4 is installed on the frame 1 on the right side of the printing carriage 2, a guide belt 5 is installed on the upper surface of the frame 1, and the ink pressing mechanism 3 and the cloth pressing roller 4 are located above the guide belt 5; a cleaning mechanism 6 is provided above the ink pressing mechanism 3, a sizing mechanism 7 is provided inside the ink pressing mechanism 3, and an adjustment mechanism 9 is provided on the left side of the frame 1. The adjustment mechanism 9 is connected to the ink pressing mechanism 3 and the sizing mechanism 7 through a gear transmission mechanism 8.

[0022] Furthermore, the ink pressing mechanism 3 is composed of an ink pressing mechanism slurry inlet 301, an adjustable scraper 302, an ink pressing roller 303, a support roller 304, an ink pressing roller driving motor 305, a cloth pressing cylinder 306, and an ink pressing roller gear 307. The ink pressing mechanism slurry inlet 301 is located at the top, the adjustable scraper 302 is arranged below the ink pressing mechanism slurry inlet 301, one end of the adjustable scraper 302 is in contact with the ink pressing roller 303 located on the upper surface of the guide belt 5, a support roller 304 is provided on the lower surface of the guide belt 5 corresponding to the position of the ink pressing roller 303, the support roller 304 is transmission-connected to the ink pressing roller gear 307 on the side of the frame 1, and an ink pressing roller driving motor 305 is installed on the inner side of the support roller 304, and a cloth pressing cylinder 306 is installed on the outer side of the frame 1 corresponding to the position of the support roller 304, and the cloth pressing cylinder 306 is connected to the adjusting mechanism 9, so that the adjusting mechanism 9 moves up and down to adjust the lifting and lowering position of the ink pressing mechanism 3.

[0023] Furthermore, the cleaning mechanism 6 is composed of a cleaning mechanism driving motor 601, a cleaning mechanism water inlet 602, a cleaning mechanism water outlet 603, a brush roller 604, an internal cleaning scraper 605, an entry side scraper 606, an exit side scraper 607, and a cleaning mechanism housing 608; the cleaning mechanism housing 608 is located above the ink pressing roller 303, the cleaning mechanism driving motor 601 is located at one end of the cleaning mechanism housing 608, and a cleaning mechanism water inlet 602 is provided in the middle of the cleaning mechanism housing 608. A cleaning mechanism water outlet 603 is provided on each side of the cleaning mechanism water inlet 602, an entry side scraper 606 is provided at the upper part of the cleaning mechanism shell 608 in contact with the ink pressing roller 303, a brush roller 604 is provided inside the cleaning mechanism shell 608, the brush roller 604 is located on the left side of the ink pressing roller 303, an exit side scraper 607 is provided at the contact position between the brush roller 604 and the ink pressing roller 303, and an internal cleaning scraper 605 that is in direct contact with the ink pressing roller 303 is provided in the middle position inside the cleaning mechanism shell 608.

[0024] Furthermore, the sizing mechanism 7 is composed of a sizing anilox roller 701, a sizing rubber roller 702, a liquid receiving tray 703, an anilox roller gear 704, and a rubber roller gear 705; the sizing anilox roller 701 and the sizing rubber roller 702 are located between the slurry inlet 301 of the ink pressing mechanism and the ink pressing roller 303, the liquid receiving tray 703 is located below the slurry inlet 301 of the ink pressing mechanism, the anilox roller gear 704 and the rubber roller gear 705 are located on the side of the frame 1 and are respectively connected to the anilox roller gear 704 and the rubber roller gear 705 through gear transmission.

[0025] Furthermore, the gear transmission mechanism 8 is composed of an ink pressure roller gear 307 , an anilox roller gear 704 , and a rubber roller gear 705 .

[0026] When the device of the present invention is working, the cloth is laid on the upper surface of the guide belt 5 and flattened by the cloth pressing roller 4. The required ink is added at the pulp inlet 301 of the ink pressing mechanism. The device is powered on, and the ink pressing roller driving motor 305 drives the ink pressing roller 303 to rotate above the supporting roller 304. The sizing anilox roller 701 and the sizing rubber roller 702 rotate along with the anilox roller gear 704 and the rubber roller gear 705. The guide belt 5 drives the cloth to move toward the ink pressing roller 304. The ink passes through the pulp inlet 301 of the ink pressing mechanism and is evenly scraped and coated on the surface of the sizing anilox roller 701 by the adapted adjustable scraper 302. The ink on the sizing anilox roller 701 is transferred to the ink pressing roller by the sizing rubber roller 702. On 303, the cleaning mechanism driving motor 601 drives each component to work, the outlet side scraper 607 above the ink pressing roller 303 evenly coats the ink on the surface of the ink pressing roller 303 again, the cleaning liquid enters the position of the internal cleaning scraper 605 through the water inlet 602 of the cleaning mechanism, the internal cleaning scraper 605 scrapes the excess ink, and then the ink on the ink pressing roller 303 after scraping is evenly scraped by the inlet side scraper 606 and coated on the cloth on the guide belt 5, the adjusting mechanism 9 adjusts each roller to move up and down to select the working position according to the thickness of the cloth, and installs a liquid receiving tray 703 below the slurry inlet 301 of the ink pressing mechanism to prevent the ink from falling directly on the cloth when adding.

[0027] The following are the parameters of the structure of the present invention:

[0028] 1. Rack 1

[0029] Size parameters

[0030] Length: The width of fabric is generally between 1.6m and 2.8m. There is almost no fabric that is longer than 2.8m. The width of the digital printing machine frame for printing 1.8m fabric is a little over 2m. The 10m wide printers seen on the market are for the advertising industry, while UV printers are for another industry. There are also 3.4m wide printers on the market that can print two 1.6m fabrics.

[0031] The one-pass printer has a rack length of 10 meters, and the scanner has a rack width of 2 meters. The rack height is about 1 meter.

[0032] Material: Usually made of metal, such as a steel frame, with a wall thickness of 16-25 mm to ensure sufficient strength to support other components and withstand the various forces during the printing process.

[0033] Weight: Rack weight varies depending on size and material. A small equipment rack may weigh 400-500 kg, while a large industrial equipment rack may weigh 1-5 tons.

[0034] Installation accuracy

[0035] Flatness: The flatness error of the upper surface of the frame (for installing the guide belt 5 and other components) is controlled within the range of ±0.1-±0.5 mm to ensure the flatness of the guide belt, which in turn affects the printing quality.

[0036] 2. Printing Car 2

[0037] Motion Parameters

[0038] Speed: The speed of the print carriage on the frame is fixed, which depends on factors such as print resolution, nozzle type and printing material. For example, it is related to the number of passes printed. For one-pass printing, the amount of guide belt feeding each time is an effective printing distance, and the effective printing distance is related to different nozzles. For two-pass printing, the guide belt advances 0.5 effective printing distance each time, and so on. The more passes, the better the printing effect.

[0039] Acceleration: In order to achieve fast start and stop and precise printing, the acceleration of the printing carriage is generally between 0.5-5 m / s2. The acceleration will affect the printing efficiency and the jetting stability of the ink in the nozzle.

[0040] Positioning accuracy: The positioning accuracy on the frame rail can reach ±0.01-±0.1 mm, ensuring that the print head can print accurately at the specified position.

[0041] Nozzle parameters (assuming the print carriage includes a nozzle)

[0042] Number of printheads: Depending on the printing requirements and the purpose of the equipment, the number of printheads can range from 1 to 100. For example, a simple single-color printing device may have only 1 to 5 printheads, while a device used for multi-color high-precision printing such as large-format advertising and fabric printing may have dozens or even hundreds of printheads.

[0043] Printhead resolution: The resolution of the printhead can range from 300-2400dpi (dots per inch). Higher resolutions are used for high-quality image printing, while lower resolutions are suitable for fast printing tasks that do not require high precision.

[0044] 3. Ink pressing mechanism 3

[0045] Pressure parameters

[0046] Ink pressing pressure: The pressure applied to the ink cartridge or ink tube during ink pressing is generally between 0.1-1MPa. This pressure can ensure that the ink can be stably supplied to the nozzle and can be adjusted according to factors such as the viscosity of the ink and the aperture of the nozzle.

[0047] Component size

[0048] Ink roller size (if any): The diameter of the ink roller can be between 5-20 cm, and the length is determined according to the printing width, generally matching the width of the guide belt, which is around 0.5-2 meters.

[0049] 4. Pressing roller 4

[0050] Pressure parameters

[0051] Pressing pressure: The pressure applied by the pressing roller to the printed material such as fabric is in the range of 10-100N / cm 2 To ensure that the printing material fits tightly against the guide belt and prevent displacement or wrinkles during printing, the pressure can be adjusted according to the thickness and hardness of the material.

[0052] Size parameters

[0053] Diameter: The diameter of the pressing roller is usually between 10-30 cm to ensure that the material can be effectively flattened. The length matches the printing width and is about 0.5-2 meters.

[0054] 5. Conductor Belt

[0055] Physical parameters

[0056] Material: The guide belt can be made of polyester fiber, rubber, etc., with a thickness of 1-5 mm. Polyester fiber guide belt has good wear resistance and tensile resistance, while rubber guide belt has good elasticity and friction, suitable for different printing materials and processes.

[0057] Width: The width of the guide belt is determined according to the printing format. Common widths are 0.5-2 meters to accommodate printing tasks of different sizes.

[0058] Running speed: Match the speed of the printing carriage, between 0.1-2 m / s, and the speed fluctuation during operation is controlled within ±0.01 m / s to ensure the printing accuracy.

[0059] 6. Cleaning mechanism 6

[0060] Cleaning fluid parameters (if applicable)

[0061] Cleaning fluid flow rate: When the cleaning mechanism is cleaning the nozzle or other parts, the cleaning fluid flow rate can be between 10-100 ml / min to ensure that residual ink and impurities can be effectively removed.

[0062] Cleaning fluid pressure: The spray pressure of the cleaning fluid is generally between 0.05-0.3MPa. Sufficient pressure can allow the cleaning fluid to fully flush the inside and surface of the nozzle.

[0063] Cleaning cycle

[0064] Depending on the frequency of printing tasks and the characteristics of the ink, the cleaning cycle can be set to clean once every 1-10 hours of printing, or automatically after each printing task is completed.

[0065] 7. Sizing mechanism 7

[0066] Slurry parameters

[0067] Sizing amount: The amount of sizing applied each time can be adjusted according to the type and size of the printing material, generally between 1-10 ml / cm2 to ensure that the printing material can be properly pre-treated and improve ink adhesion.

[0068] Slurry viscosity: The viscosity of the slurry ranges from 10-1000mPa·s. Different viscosities are suitable for different printing materials and ink systems. For example, a lower viscosity slurry may be required for fiber materials, while a higher viscosity slurry may be required for some special coating materials.

[0069] 8. Gear transmission mechanism 8

[0070] Gear Ratio

[0071] Depending on the speed requirements of different components, the transmission ratio of the gear transmission mechanism can vary from 1:1 to 10:1. For example, in order to enable the ink pressing mechanism and the sizing mechanism to match the movement of the printing carriage at a suitable speed, the transmission ratio may be designed according to the specific movement parameters and component dimensions.

[0072] Accuracy level

[0073] The accuracy level of gears is generally between 6 and 9 to ensure the smoothness and accuracy of transmission and reduce vibration and noise during transmission.

[0074] IX. Regulation mechanism 9

[0075] Adjustment range

[0076] Position adjustment: The adjustment mechanism can adjust the ink pressing mechanism and the slurry mechanism in the horizontal and vertical directions. The horizontal adjustment range is between ±0.1-±10 cm, and the vertical adjustment range is between ±0.1-±5 cm to meet the requirements of ink cartridges, slurry containers and printing materials of different specifications.

[0077] Angle adjustment: Some parts may require angle adjustment, and the adjustment angle range is between ±1°-±10° to ensure the best fit between parts.

[0078] The above description is only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. An ink pressing process equipment for digital printing, characterized in that: The invention comprises a frame (1), a printing carriage (2), an ink pressing mechanism (3), a cloth pressing roller (4), a guide belt (5), a cleaning mechanism (6), a sizing mechanism (7), a gear transmission mechanism (8) and an adjusting mechanism (9); the printing carriage (2) is arranged on the upper left side of the frame (1); the ink pressing mechanism (3) is installed on the frame (1) on the left side of the printing carriage (2); the cloth pressing roller (4) is installed on the frame (1) on the right side of the printing carriage (2); the guide belt (5) is installed on the upper surface of the frame (1); and the ink pressing mechanism (3) and the cloth pressing roller (4) are located above the guide belt (5); the cleaning mechanism (6) is arranged above the ink pressing mechanism (3); the sizing mechanism (7) is arranged inside the ink pressing mechanism (3); the adjusting mechanism (9) is arranged on the left side of the frame (1); and the adjusting mechanism (9) is connected to the ink pressing mechanism (3) and the sizing mechanism (7) through the gear transmission mechanism (8).

2. The ink pressing process equipment for digital printing according to claim 1, characterized in that: The ink pressing mechanism (3) is composed of an ink pressing mechanism pulp inlet (301), an adjustable scraper (302), an ink pressing roller (303), a support roller (304), an ink pressing roller driving motor (305), a cloth pressing cylinder (306), and an ink pressing roller gear (307). The ink pressing mechanism pulp inlet (301) is located at the top, and the adjustable scraper (302) is arranged below the ink pressing mechanism pulp inlet (301). One end of the adjustable scraper (302) contacts the ink pressing roller (303) located on the upper surface of the guide belt (5), corresponding to A support roller (304) is provided on the lower surface of the guide belt (5) at the position of the ink pressing roller (303), the support roller (304) is transmission-connected to an ink pressing roller gear (307) on the side of the frame (1), and an ink pressing roller driving motor (305) is installed on the inner side of the support roller (304), and a cloth pressing cylinder (306) is installed on the outer side of the frame (1) corresponding to the position of the support roller (304), and the cloth pressing cylinder (306) is connected to the adjustment mechanism (9), so that the adjustment mechanism (9) moves up and down to adjust the lifting and lowering position of the ink pressing mechanism (3).

3. The ink pressing process equipment for digital printing according to claim 1 is characterized in that: The cleaning mechanism (6) is composed of a cleaning mechanism driving motor (601), a cleaning mechanism water inlet (602), a cleaning mechanism water outlet (603), a brush roller (604), an internal cleaning scraper (605), an inlet side scraper (606), an outlet side scraper (607), and a cleaning mechanism housing (608); the cleaning mechanism housing (608) is located above the ink pressing roller (303), the cleaning mechanism driving motor (601) is located at one end of the cleaning mechanism housing (608), a cleaning mechanism water inlet (602) is provided in the middle of the cleaning mechanism housing (608), and the cleaning mechanism A cleaning mechanism water outlet (603) is provided on each side of the water inlet (602); an entry side scraper (606) is provided at the upper part of the cleaning mechanism housing (608) in contact with the ink pressing roller (303); a brush roller (604) is provided inside the cleaning mechanism housing (608); the brush roller (604) is located on the left side of the ink pressing roller (303); an exit side scraper (607) is provided at the contact position between the brush roller (604) and the ink pressing roller (303); and an internal cleaning scraper (605) is provided at the middle position inside the cleaning mechanism housing (608) in direct contact with the ink pressing roller (303).

4. The ink pressing process equipment for digital printing according to claim 1 is characterized in that: The sizing mechanism (7) is composed of an optional scraper (701), a sizing anilox roller (701), a sizing rubber roller (702), a liquid receiving tray (703), anilox roller gear (704), and a rubber roller gear (705); the sizing anilox roller (701) and the sizing rubber roller (702) are located between the sizing inlet (301) of the ink pressing mechanism and the ink pressing roller (303); the liquid receiving tray (703) is located below the sizing inlet (301) of the ink pressing mechanism; the anilox roller gear (704) and the rubber roller gear (705) are located on the side of the frame (1) and are respectively connected to the anilox roller gear (704) and the rubber roller gear (705) by gear transmission.

5. The ink pressing process equipment for digital printing according to claim 1 is characterized in that: The gear transmission mechanism (8) is composed of an ink-pressing roller gear (307), an anilox roller gear (704), and a rubber roller gear (705), and the ink-pressing roller gear (307), the anilox roller gear (704), and the rubber roller gear (705) are used for the gear transmission connection between the ink-pressing roller (303), the sizing anilox roller (701), the sizing rubber roller (702) and the ink-pressing roller driving motor (305), so that the overall device can realize the rotation of the motor to drive the rotation of each roller.

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