Color digital printing device used for being integrated with flexographic printing equipment

Abstract

The utility model relates to a color digital printing device used for being integrated with flexographic printing equipment, which comprises a color digital printing device body, the color digital printing device body comprises a color printing module, a color bottom supporting frame and a color feeding module, the bottom of the color bottom supporting frame is connected with a supporting track on a flexographic printing device, and the color feeding module is connected with the color printing module. The relative position of the colored bottom supporting frame and the supporting track can be adjusted; the colored feeding module is arranged at the front part of the colored bottom supporting frame; the color printing module is arranged above the color bottom supporting frame, a plurality of printing nozzles are installed on the color printing module and located above the color feeding module, the bottom faces of the printing nozzles are parallel to the upper surface of a printing medium on the color feeding module below the printing nozzles, and the distance between the printing nozzles and the printing medium can be adjusted. The color digital printing device and the flexographic printing equipment are integrated, the production cost is reduced, the production efficiency is improved, and the upgrading and reconstruction cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, and specifically to a color digital printing device for integration with flexographic printing equipment. Background Technology

[0002] Flexographic printing, initially known as aniline printing, originated in the United States in the early 1920s. Its development was hindered by the toxicity of aniline dye inks used. Subsequently, ink manufacturers began using more widely accepted and acceptable pigments, and in 1952, at the 14th Packaging Symposium in the United States, it was renamed flexographic printing. From the mid-1970s onwards, advancements in materials science, particularly the advent of polymer resin plates and metal-ceramic anilox rollers, spurred a qualitative leap in the development of flexographic printing. It became the fastest-growing printing method worldwide, especially in the United States, where it achieved significant development. Both printing press manufacturing technology and flexographic application technology represent the highest level of flexographic printing. Almost all product packaging seen in the US domestic market is flexographic printed. Statistics show that flexographic printing holds a 70% market share in flexible packaging printing, 85% in label printing, 98% in corrugated paper printing, and 25% in carton printing in the United States.

[0003] Flexographic printing boasts advantages such as high print quality, high production efficiency, high printing speed, low investment, and high returns. Thanks to high-quality resin plates and ceramic anilox rollers, printing precision reaches 175 lines per inch, with a full ink layer thickness, resulting in rich product detail and vibrant colors. It is particularly suitable for packaging printing, achieving a striking color effect that offset printing often cannot match. It combines the clarity of letterpress printing, the softness of offset printing, and the thick ink layer and high gloss of gravure printing. Flexographic printing equipment typically uses roll-to-roll materials, allowing for continuous operation from double-sided multi-color printing to varnishing, lamination, hot stamping, die-cutting, waste removal, rewinding, or slitting. In contrast, offset printing often requires more personnel and multiple machines in three or four steps. Therefore, flexographic printing significantly shortens the printing cycle and reduces costs, giving it a competitive edge in a highly competitive market. Flexographic printing speeds can reach 150–200 m / min, generally 1.5–2 times that of offset and gravure printing presses, enabling high-speed multi-color printing. Modern flexographic printing presses have advantages such as short ink transfer paths, fewer ink transfer parts, and lighter weight, resulting in a simpler structure and significantly reduced material usage. Therefore, the investment in flexographic printing machines is much lower than that of single-color offset printing presses. Consequently, flexographic printing holds a substantial market share in China.

[0004] However, due to market demand, printed designs in industries such as flexible packaging and labels often have variable data. If flexographic printing is still used, multiple plate-making and changing processes are required, making it less cost-effective. Therefore, digital printing is now widely used for variable data portions. Digital printing is the digitization of printing technology, unlike the plate-making process of flexographic printing. Its characteristics include single-sheet printing, no need for plate-making, variable printing, and on-demand printing. Currently, the combination of flexographic and digital printing in the market often involves first using flexographic printing to complete the printing of non-variable data, and then using a digital printer to print the variable data portions of the entire batch of printing media. This method has the following disadvantages:

[0005] ① Original flexographic printing manufacturers need to purchase digital printers to print variable data parts, but digital printers are expensive, thus increasing production costs.

[0006] ② Digital printing is usually performed on the printing media after flexographic printing. This method often produces color misregistration problems, which places high demands on the correction and color registration accuracy of the digital printer, thereby further increasing equipment and production costs. Even if the accuracy of the digital printer is improved, the problem of color misregistration cannot be avoided.

[0007] ③ Currently, some manufacturers in the market are trying to achieve one-stop printing by embedding a whole digital printer in the flexographic printing production line. However, this method can only add a whole digital printer before or after the overall flexographic printing production line module. It is not only bulky and takes up a lot of space, but also cannot be flexibly adjusted in position. It is highly specialized, and for special printing needs, it is impossible to insert the digital printer between two printing modules of flexographic printing, resulting in the inability to meet specific printing needs. Utility Model Content

[0008] The present invention aims to provide a color digital printing device for integration with flexographic printing equipment, so as to overcome the shortcomings of the prior art. The technical problem to be solved by the present invention is achieved through the following technical solution.

[0009] A color digital printing device for integration with flexographic printing equipment includes a color digital printing device body. The color digital printing device body includes a color printing module, a color bottom support frame, and a color feed module. The color printing module and the color feed module are mounted on the color bottom support frame. The bottom of the color bottom support frame is connected to a support rail on the flexographic printing equipment, and the relative position of the color bottom support frame and the support rail is adjustable. The color feed module is located at the front of the color bottom support frame and is used to receive and convey printing media from the flexographic feed module of the flexographic printing equipment. The color printing module is located above the color bottom support frame and has a plurality of printheads mounted on it. The printheads are located above the color feed module, and the bottom surface of the printheads is parallel to the upper surface of the printing media on the color feed module below them. The distance between the printheads and the printing media is adjustable.

[0010] Preferably, the color printing module includes a color main frame, a color lifting frame, a color raising frame, a color secondary ink cartridge assembly, a color printhead base plate assembly, and a color moisturizing assembly. The color raising frame is fitted outside the color lifting frame, and the relative height between the color raising frame and the color lifting frame is adjustable. The color printhead base plate assembly is installed side-by-side at intervals at the bottom of the color lifting frame, and the printhead is installed inside the color printhead base plate assembly. The color secondary ink cartridge assembly is installed at the upper end of the color lifting frame. The color main frame is fitted outside the color raising frame, and the relative height between the color raising frame and the color main frame is adjustable. The color main frame is fixedly installed above the color bottom support frame. The color moisturizing assembly is installed at the bottom of the color main frame, and the color moisturizing assembly can move back and forth relative to the color main frame.

[0011] Preferably, the colored main frame includes colored main side plates spaced apart on the left and right and a colored main mounting plate arranged horizontally between the two colored main side plates. The bottom end of the colored main side plates is fixedly connected to the upper end of the colored bottom support frame. The colored lifting frame is connected to the colored main mounting plate. A colored lifting drive device is provided between the colored lifting frame and the colored main mounting plate. The colored lifting drive device is used to drive the colored lifting frame to move up and down, thereby adjusting the relative position of the colored lifting frame and the colored main frame.

[0012] Preferably, the colored hoisting frame includes colored hoisting side plates nested inside the colored hoisting frame on both sides and a colored hoisting bottom frame disposed at the bottom of the colored hoisting side plates. The number of colored nozzle bottom plate assemblies is multiple and they are spaced apart on the left and right sides within the colored hoisting bottom frame. The colored lifting frame includes a colored lifting back plate and colored lifting side plates disposed on both sides of the colored lifting back plate and fixedly connected to it perpendicularly. The colored lifting back plate is connected to the colored main frame. Colored hoisting holes are provided at the front and rear ends of the bottom of the colored lifting side plates. Colored hoisting screws are installed on the left and right sides of the colored hoisting bottom frame. The colored hoisting screws pass through the bottom of the colored hoisting bottom frame, and their upper ends pass through the bottom of the colored lifting side plates and are inserted into the colored hoisting holes. The upper ends are locked and fixed by colored hoisting nuts. A colored hoisting spring is sleeved on the outside of the part of the colored hoisting screw located between the colored lifting side plate and the colored hoisting bottom frame.

[0013] Preferably, the color printhead base plate assembly includes a color base plate, a color base plate adjustment device disposed between the color base plate and the color hoisting base frame, a plurality of printheads installed in the color base plate, a color printhead adjustment device disposed between the printheads and the color base plate, and a color base plate UV lamp disposed at the right end of the color base plate, wherein the irradiation range of the long side of the color base plate UV lamp covers the long side printing range of the printheads.

[0014] Preferably, the colored base plate has an outwardly protruding colored base plate boss at its front end and an inwardly recessed colored base plate adjustment groove at its rear end. The colored base plate adjustment device includes a colored base plate adjustment block disposed around the colored base plate boss and a colored base plate positioning pin disposed in the colored base plate adjustment groove. The colored base plate adjustment block is installed on the colored lifting base frame. Colored base plate adjustment nails are respectively installed on the left and right sides of the colored base plate adjustment block. The ends of the colored base plate adjustment nails abut against the left and right side surfaces of the colored base plate boss. A colored base plate adjustment nail and a colored base plate fixing screw are installed at the front end of the colored base plate adjustment block. The end of the colored base plate adjustment nail at the front end of the colored base plate adjustment block abuts against the front end surface of the colored base plate boss, and the end of the colored base plate fixing screw is installed inside the front end surface of the colored base plate boss.

[0015] Preferably, the color printhead adjustment device includes a color printhead L-shaped adjustment block disposed at one end of the printhead, a color V-shaped adjustment block disposed at the other end of the printhead, a color printhead adjustment screw mounted on the color base plate and abutting against the left side of the inner corner of the color printhead L-shaped adjustment block, two color elastic pins mounted on the color base plate and abutting against the front right sides of the short side of the color printhead L-shaped adjustment block respectively, and a color printhead adjustment screw mounted on the color base plate and disposed in the V-groove of the color V-shaped adjustment block. The contact surface between the color printhead adjustment screw and the color printhead L-shaped adjustment block and the color V-shaped adjustment block is a conical surface.

[0016] Preferably, the color feeding module includes a color paper feeding platform assembly and a left color paper feeding servo control assembly and a right color paper feeding servo control assembly, which are detachable and disposed on the left and right sides of the color paper feeding platform assembly. The left color paper feeding servo control assembly includes a detachable left color paper feeding frame disposed on the left side of the color paper feeding platform assembly. A left color paper feeding drive roller is installed on the left color paper feeding frame, and a left color paper feeding servo motor is installed at the end of the left color paper feeding drive roller. The right color paper feeding servo control assembly includes a detachable right color paper feeding frame disposed on the right side of the color paper feeding platform assembly. A right color paper feeding drive roller is installed on the right color paper feeding frame, and a right color paper feeding servo motor is installed at the end of the right color paper feeding module. A color paper feeding UV lamp is installed at the right end of the color feeding module.

[0017] Preferably, the color moisturizing component includes a color moisturizing mounting frame, on which several color printhead moisturizing plates are arranged at intervals on the left and right sides. The color printhead moisturizing plates are matched with the color base plate. The bottom of the color printhead moisturizing plates is provided with ink leakage holes. A color scraper cartridge is installed on the front side of the color moisturizing mounting frame at a position corresponding to the color printhead moisturizing plates. The color scraper cartridge is provided with a color scraper ink receiving groove. Several color scrapers are provided on the front side of the color scraper ink receiving groove. The color scrapers are matched with the printheads on the color base plate. The bottom of the color scraper ink receiving groove is provided with ink outlet holes. The color moisturizing mounting frame is installed at the bottom of the color main frame and can move back and forth relative to the color main frame.

[0018] Preferably, a color moisturizing moving drive device is provided between the color moisturizing mounting frame and the color main frame. The color moisturizing moving drive device includes a color moisturizing drive motor installed at one end of the bottom of the color main frame. A color moisturizing drive pulley is fixedly installed at the output end of the color moisturizing drive motor. The color moisturizing drive pulley is connected to a color moisturizing first driven pulley via a color moisturizing drive belt. The color moisturizing first driven pulley is connected to a color moisturizing second driven pulley via a color moisturizing transmission belt. The color moisturizing second driven pulley is rotatably installed at the other end of the bottom of the color main frame. A color moisturizing guide rail is installed on the color main frame. A color moisturizing connecting slider is installed on the color moisturizing mounting frame. The color moisturizing connecting slider and the color moisturizing guide rail are mutually connected. A color moisturizing belt pressure plate is fixedly installed on the color moisturizing connecting slider. The color moisturizing belt pressure plate and the color moisturizing transmission belt are mutually pressed and connected.

[0019] The present invention provides a color digital printing device for integration with flexographic printing equipment, which has the following beneficial effects:

[0020] 1) It realizes the effective integration of color digital printing device and flexographic printing equipment, thereby realizing one-stop online printing of flexographic printing and digital printing, effectively reducing production costs and improving production efficiency. Moreover, compared with offline printing in the existing technology, the problem of inaccurate color registration is easier to solve.

[0021] 2) The color digital printing device is mounted on a track above the flexographic printing equipment, allowing the digital printing device to be adjusted to any position on the track to meet different printing needs;

[0022] 3) For manufacturers with variable data printing needs, they only need to purchase a digital printing device, that is, only a color digital printing device, instead of purchasing a whole digital printer, which saves costs and allows for flexible production transformation and upgrading. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the assembly structure of the color digital printing device body and the flexographic printing device in this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the color digital printing device body in this utility model;

[0025] Figure 3 This is a structural schematic diagram of the main body of the color digital printing device in this utility model from another angle;

[0026] Figure 4 This is a schematic diagram of the structure of the color lifting drive device in this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the colored lifting frame in this utility model;

[0028] Figure 6 This is a schematic diagram of the installation structure of the color nozzle base plate assembly within the color hoisting base frame in this utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the color nozzle base plate assembly in this utility model;

[0030] Figure 8 This is a schematic diagram of the structure of the color feeding module in this utility model;

[0031] Figure 9 This is a schematic diagram of the structure of the colored moisturizing component in this utility model;

[0032] Figure 10 This is a schematic diagram of the structure of the color moisturizing moving drive device in this utility model;

[0033] The reference numerals in the attached figures are, in order: 1. Flexographic printing device; 11. Support rail; 2. Color digital printing device body; 21. Color printing module; 211. Color main frame; 2111. Color main side plate; 2112. Color main mounting plate; 2113. Color lifting motor; 2114. Color lifting screw; 2115. Color lifting screw nut; 2116. Color lifting screw nut seat; 212. Color hoisting frame; 2121. Color hoisting side plate; 2122. Color hoisting front beam; 2123. Color hoisting rear beam; 2124. Color... Colored lifting strip, 2125; Colored base plate adjusting block, 2126; Colored base plate positioning pin, 213; Colored lifting frame, 2131; Colored lifting back plate, 2132; Colored lifting side plate, 2133; Colored lifting mounting hole, 2134; Colored lifting screw, 2135; Colored lifting spring, 214; Colored secondary ink cartridge assembly, 215; Colored printhead base plate assembly, 2151; Colored base plate, 2152; Colored base plate boss, 2153; Colored printhead L-shaped adjusting block, 2154; Colored printhead adjusting screw, 2155; Colored... 2156. Elastic pin; 2157. Colored V-shaped adjusting block; 216. Colored base plate UV lamp; 217. Colored humidification assembly; 2161. Colored humidification mounting frame; 2162. Colored printhead humidification plate; 2163. Colored doctor blade cartridge; 21631. Colored doctor blade ink collection tray; 2164. Colored doctor blade; 21651. Colored humidification drive motor; 21652. Colored humidification drive belt; 21653. Colored humidification first driven pulley; 21654. Colored humidification transmission belt; 21655. Colored humidification second driven pulley; 2165 6. Colored moisturizing connecting slider; 21657. Colored moisturizing belt pressure plate; 21658. Colored moisturizing guide rail; 22. Colored bottom support frame; 221. Colored bottom frame side plate; 222. Colored machine head bottom support plate; 23. Colored feeding module; 231. Colored paper feeding platform assembly; 232. Colored paper feeding left frame; 233. Colored paper feeding left drive roller; 234. Colored paper feeding left servo motor; 235. Colored paper feeding right frame; 236. Colored paper feeding right drive roller; 237. Colored paper feeding right servo motor; 238. Colored paper feeding UV lamp. Detailed Implementation

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] In this utility model, the terms "front," "back," "left," and "right" refer to... Figure 1 The directions shown are for reference, with the left side being left and the right side being right.

[0036] Example 1:

[0037] Reference Figure 1 As shown, a color digital printing device for integration with flexographic printing equipment is improved in that: the flexographic printing equipment includes a flexographic printing device 1, which includes a support platform, a flexographic feeding module, several flexographic modules, and a support rail 11 disposed above and behind the flexographic modules. The flexographic modules are arranged at intervals on the left and right sides of the support platform, and are used for flexographic printing of the printing media. The flexographic feeding module is disposed on the support platform and located between the flexographic modules, and is used for guiding and conveying the printing media; the color digital printing device body... 2 is mounted on the support rail 11, and the position of the color digital printing device body 2 on the support rail 11 is adjustable; the color digital printing device body 2 includes a color printing module 21 and a color feeding module 23. The color feeding module 23 is located above the flexographic module and its position corresponds to the flexographic feeding module. It is used to receive and convey the printing medium from the flexographic feeding module. The color printing module 21 is mounted above the color feeding module 23 and is used to perform variable data digital printing on the printing medium on the color feeding module 23.

[0038] In this embodiment, there are multiple flexographic printing modules, each used to complete different flexographic printing operations. The digital printing device is set on the support rail 11 above the flexographic printing device 1, and the color feed module 23 of the color digital printing device body is located above the flexographic feed module and its position matches that of the flexographic feed module, so as to receive and transmit the printing media from the flexographic feed module. The position of the color digital printing device body 2 on the support rail 11 is adjustable. When using the integrated equipment, the color digital printing device body 2 is adjusted to a suitable position on the support rail 11 according to the actual printing needs. The left and right sides of the flexographic printing device 1 are respectively equipped with a feeding roll and a receiving roll. The printing medium is installed on the feeding roll and wound around the flexographic feeding module. The flexographic feeding module is set between the flexographic modules to guide and convey the printing medium. As needed, the printing medium on the flexographic feeding module is pulled out and wound around the color feeding module 23. After being guided by the color feeding module 23, it is wound around the subsequent flexographic feeding module. Thus, on the same equipment, flexographic printing can be completed on the printing medium through the flexographic module, and variable data digital printing can be completed on the printing medium through the color digital printing device body. Furthermore, the color digital printing device body 2 can be set between any process of flexographic printing according to the printing needs, thereby realizing more diverse combinations of flexographic printing and digital printing. The flexographic printing unit 1 and the color digital printing unit 2 are integrated on the same device, and the flexographic feed module and the color feed module 23 are matched with each other, which makes it easier to register colors between flexographic printing and digital printing.

[0039] Example 2:

[0040] Based on Example 1, referring to Figure 2 and Figure 3 As shown, the digital printing device includes a color digital printing device body 2. The color digital printing device body 2 includes a color printing module 21, a color bottom support frame 22, and a color feed module 23. The color printing module 21 and the color feed module 23 are mounted on the color bottom support frame 22. The bottom of the color bottom support frame 22 is connected to the support rail 11, and the relative position of the color bottom support frame 22 and the support rail 11 is adjustable. The color feed module 23 is located at the front of the color bottom support frame 22 and is used to receive and convey the printing media from the flexographic feed module of the flexographic printing device 1. The color printing module 21 is located above the color bottom support frame 22. A plurality of printheads are mounted on the color printing module 21. The printheads are located above the color feed module 23, and the bottom surface of the printheads is parallel to the upper surface of the printing media on the color feed module 23 below them. The distance between the printheads and the printing media is adjustable.

[0041] In this embodiment, the color digital printing device body 2 integrates a color printing module 21 containing a print head for variable data digital printing, a color bottom support frame 22 connected to and supporting the support rail 11, and a color feeding module 23 corresponding to the flexographic feeding module. The support rail 11 and the flexographic feeding module on the flexographic printing device 1 replace the base and feeding / receiving module of the traditional digital printer, making the structure of the color digital printing device body 2 more compact. This not only facilitates integration into the original flexographic printing device but also enables the receiving of printing media from the flexographic feeding module and effectively realizes variable data digital printing. For manufacturers that already own flexographic printing equipment and have variable data printing needs, they only need to purchase the color digital printing device body for simple modification, without having to purchase the entire digital printer, which saves costs and allows for flexible production upgrades.

[0042] Furthermore, refer to 2 and Figure 5As shown, the color printing module 21 includes a color main frame 211, a color lifting frame 212, a color lifting frame 213, a color secondary ink cartridge assembly 214, a color printhead base plate assembly 215, and a color moisture retention assembly 216. The color lifting frame 213 is fitted onto the outside of the color lifting frame 212, and the relative height between the color lifting frame 213 and the color lifting frame 212 is adjustable. The color printhead base plate assembly 215 is installed side-by-side at intervals at the bottom of the color lifting frame 212, and the printhead is mounted on the color printhead. Inside the base plate assembly 215, the color secondary ink cartridge assembly 214 is installed on the upper end of the color lifting frame 212; the color main frame 211 is sleeved on the outside of the color lifting frame 213, the relative height between the color lifting frame 213 and the color main frame 211 is adjustable, the color main frame 211 is fixedly installed above the color bottom support frame 22, the color moisturizing component 216 is installed at the bottom of the color main frame 211, and the color moisturizing component 216 can move back and forth relative to the color main frame 211.

[0043] In this embodiment, the color printing module 21, as its name suggests, aims to print variable color data. For color digital printing, in order to match the printing speed of flexographic printing, it is necessary to arrange multiple high-precision printheads to achieve its color digital printing function. In order to integrate the color printing module 21 with the flexographic printing device 1, the color printing module 21 needs to be as small in size and as light in weight as possible. Due to the requirements of printing and printhead humidification, the distance between the printhead of the color printing module 21 and the printing medium needs to be adjustable. Since the printing speed is relatively fast, the curing of ink after printing needs to be timely, and UV lamps also need to be installed properly. Therefore, in this embodiment, the color printing module 21 adopts a multi-layer nested frame pattern, with the color printhead base plate assembly 215 and the color secondary ink cartridge assembly for supplying ink to the printhead mounted on the innermost color lifting frame 212. The color lifting frame 213 is fitted onto the outside of the color lifting frame 212. The relative height between the color lifting frame 213 and the color lifting frame 212 is micro-adjustable, thereby allowing for micro-adjustment of the height of the color lifting frame 212, and consequently micro-adjustment of the distance between the printhead and the printing medium. The height between the color lifting frame 213 and the color main frame 211 is also adjustable, allowing for coarse adjustment of the height of the color lifting frame 212 to provide space for the color moisturizing assembly 216 to move back and forth.

[0044] In use, when the distance between the print head and the printing medium in the color printing module 21 needs to be finely adjusted, it can be adjusted by adjusting the relative height of the color lifting frame 212 and the color lifting frame 213. When the print head needs maintenance after printing, the height between the color lifting frame 213 and the color main frame 211 can be adjusted so that the color moisturizing component 216 moves forward to below the color print head base plate assembly 215 and completes the ink scraping treatment at the bottom of the print head during the backward movement. Then it moves forward again to below the color print head base plate assembly 215 and makes the color print head moisturizing plate 2162 and the print head on the color base plate 2151 interlock to moisturize and maintain the print head.

[0045] Furthermore, refer to Figure 4 As shown, the colored main frame 211 includes colored main side plates 2111 spaced apart on the left and right, and a colored main mounting plate 2112 horizontally arranged between the two colored main side plates 2111. The bottom end of the colored main side plates 2111 is fixedly connected to the upper end of the colored bottom support frame 22. The colored lifting frame 213 is connected to the colored main mounting plate 2112. A colored lifting drive device is provided between the colored lifting frame 213 and the colored main mounting plate 2112. The colored lifting drive device is used to drive the colored lifting frame 213 to move up and down, thereby adjusting the relative position of the colored lifting frame 213 and the colored main frame 211.

[0046] Furthermore, refer to Figure 4 As shown, the color lifting drive device includes a color lifting motor 2113 fixedly installed on the color main mounting plate 2112. The output end of the color lifting motor 2113 faces upward and is fixedly connected to the bottom end of the color lifting screw 2114. A color lifting nut 2115 is sleeved on the color lifting screw 2114, and the color lifting nut 2115 is fixedly installed on the color lifting frame 213.

[0047] In this embodiment, when adjusting the height of the colored lifting frame 213 using the colored lifting drive device, the colored lifting motor 2113 is activated. The rotation of the colored lifting motor 2113 drives the colored lifting screw 2114 to rotate, thereby causing the colored lifting nut 2115 to move upward or downward along the colored lifting screw 2114, and thus causing the colored lifting frame 213 to move upward or downward. Since the height is adjusted using a motor and screw nut, coarse adjustment of the height of the colored lifting frame 213 can be achieved.

[0048] Furthermore, a colored lifting cable nut 2116 is fixedly installed on the rear surface of the colored lifting frame 213, and the colored lifting cable nut 2115 is fixedly installed inside the colored lifting cable nut 2116.

[0049] Furthermore, refer to Figure 5 and Figure 6 As shown, the colored hoisting frame 212 includes colored hoisting side plates 2121 nested inside the colored hoisting frame 212 on both sides and a colored hoisting bottom frame disposed at the bottom of the colored hoisting side plates 2121. The number of colored nozzle bottom plate assemblies 215 is multiple and they are disposed at left and right intervals inside the colored hoisting bottom frame.

[0050] Furthermore, refer to Figure 5 As shown, the colored lifting frame 213 includes a colored lifting back plate 2131 and colored lifting side plates 2132 disposed on both sides of the colored lifting back plate 2131 and fixedly connected to it perpendicularly. The colored lifting back plate 2131 is connected to the colored main frame 211. Colored lifting hoisting holes 2133 are provided at the front and rear ends of the bottom of the colored lifting side plates 2132. Colored hoisting screws 2134 are respectively installed on the left and right sides of the colored hoisting base frame. The colored hoisting screws 2134 pass through the bottom of the colored hoisting base frame, and the upper end passes through the bottom of the colored lifting side plates 2132 and is inserted into the colored lifting hoisting holes 2133. The upper end is locked and fixed by colored hoisting nuts. A colored hoisting spring 2135 is sleeved on the outside of the part of the colored hoisting screws 2134 located between the colored lifting side plates 2132 and the colored hoisting base frame.

[0051] In this embodiment, when adjusting the relative height between the color lifting frame 213 and the color hoisting frame 212, the length of the color hoisting screws 2134 extending into the color lifting hoisting holes 2133 can be adjusted by turning the color hoisting screws 2134. This allows for fine adjustment of the distance between the color hoisting base frame and the color lifting side plate 2132, thereby achieving fine adjustment of the distance between the print head and the printing medium. Since color hoisting screws 2134 are provided at both the front and rear ends of the left and right color lifting side plates 2132, the tilt angle of the color hoisting base frame can be adjusted using the four color hoisting screws 2134. This ensures that the print head on the color print head base plate assembly 215 within the color hoisting base frame is parallel to the upper surface of the printing medium below it.

[0052] Furthermore, the colored hoisting base frame includes a colored hoisting front beam 2122 and a colored hoisting rear beam 2123 arranged parallel to each other. Colored hoisting strips 2124 are installed at the left and right ends between the colored hoisting front beam 2122 and the colored hoisting rear beam 2123. Colored hoisting screws 2134 are respectively connected to the colored hoisting strips 2124 and the colored lifting side plates 2132.

[0053] Example 3:

[0054] Based on Example 2, referring to Figure 6 and Figure 7 As shown, the color printhead base plate assembly 215 includes a color base plate 2151, a color base plate adjustment device disposed between the color base plate 2151 and the color mounting base frame, a plurality of printing printheads installed in the color base plate 2151, a color printhead adjustment device disposed between the printing printheads and the color base plate 2151, and a color base plate UV lamp 2157 disposed at the right end of the color base plate 2151, wherein the irradiation range of the long side of the color base plate UV lamp 2157 covers the long side printing range of the printing printheads.

[0055] In this embodiment, multiple color printhead base plate assemblies 215 are arranged at intervals within the color mounting frame. Each color printhead base plate assembly 215 is equipped with several interconnected printheads. Each printhead on the color printhead base plate assembly 215 prints one color of ink. After printing, the ink is irradiated by a color base plate UV lamp on its side to allow for initial curing, preventing excessive droplet diffusion and thus quickly controlling the droplet diameter for higher quality printing. The final curing of the ink droplets depends on the color paper feeding UV lamp in the color feeding module.

[0056] Furthermore, the front end of the colored base plate 2151 is provided with an outwardly protruding colored base plate boss 2152, and the rear end is provided with an inwardly recessed colored base plate adjustment groove. The colored base plate adjustment device includes a colored base plate adjustment block 2125 disposed around the colored base plate boss 2152 and a colored base plate positioning pin 2126 disposed in the colored base plate adjustment groove. The colored base plate adjustment block 2125 is installed on the colored hoisting base frame, and the left and right sides of the colored base plate adjustment block 2125 are... Colored base plate adjusting nails are installed on the sides respectively. The ends of the colored base plate adjusting nails abut against the left and right side surfaces of the colored base plate boss 2152 respectively. Colored base plate adjusting nails and colored base plate fixing screws are installed at the front end of the colored base plate adjusting block 2125. The ends of the colored base plate adjusting nails at the front end of the colored base plate adjusting block 2125 abut against the front end surface of the colored base plate boss 2152. The ends of the colored base plate fixing screws are installed inside the front end surface of the colored base plate boss 2152.

[0057] In this embodiment, the front-to-back position and deflection angle of the color base plate 2151 are adjusted by the color base plate adjustment device. When adjusting the front-to-back position of the color base plate 2151, the length of the color base plate adjustment pin extending out of the color base plate adjustment block 2125 can be adjusted by screwing the color base plate adjustment pin at the front end of the color base plate adjustment block 2125, thereby moving the color base plate 2151 forward or backward. The rear end opening of the color base plate adjustment groove and the cooperation between the color base plate positioning pin 2126 and the color base plate adjustment groove play a limiting and guiding role in the front-to-back movement of the color base plate 2151. After the adjustment is completed, the position of the color base plate adjustment block 2125 and the color base plate boss 2152 can be fixed by screwing the color base plate fixing screw, thereby fixing the position of the color base plate 2151. When adjusting the deflection angle of the colored base plate 2151, the length of the colored base plate adjusting pins extending from the colored base plate adjusting block 2125 on both sides of the colored base plate adjusting block 2125 can be adjusted to push the colored base plate boss 2152 to move left or right, thereby causing the colored base plate 2151 to rotate around the colored base plate positioning pin 2126, thus adjusting the deflection angle of the colored base plate 2151. After adjustment, the colored base plate fixing screws can be tightened to fix the positions of the colored base plate adjusting block 2125 and the colored base plate boss 2152, thereby fixing the position of the colored base plate 2151. The hole on the colored base plate adjusting block 2125 for accommodating the colored base plate fixing screw is an oblong hole, thus providing space for the colored base plate fixing screw to move.

[0058] Furthermore, the color printhead adjustment device includes a color printhead L-shaped adjustment block 2153 disposed at one end of the printhead, a color V-shaped adjustment block 2156 disposed at the other end of the printhead, a color printhead adjustment screw 2154 mounted on the color base plate 2151 and abutting against the left side of the inner corner of the color printhead L-shaped adjustment block 2153, two color elastic pins 2155 mounted on the color base plate 2151 and abutting against the front right sides of the short side of the color printhead L-shaped adjustment block 2153 respectively, and a color printhead adjustment screw 2154 mounted on the color base plate 2151 and disposed in the V-groove of the color V-shaped adjustment block 2156. The contact surface between the color printhead adjustment screw 2154 and the color printhead L-shaped adjustment block 2156 and the color V-shaped adjustment block 2156 is a conical surface.

[0059] In this embodiment, the front-to-back position and deflection angle of the print head are adjusted by a color print head adjustment device. When adjusting the front-to-back position of the print head, the color print head adjustment screw 2154 on the rear side of the print head can be turned to move it downward or upward, thereby causing the print head to move forward or backward. When adjusting the deflection angle of the printhead, the color printhead adjusting screw 2154 is turned down or up. Since the contact surface between the color printhead adjusting screw 2154 and the color printhead L-shaped adjusting block 2156 is a conical surface, when the color printhead adjusting screw 2154 moves down, it exerts a squeezing force on the color printhead L-shaped adjusting block 2156, causing the color printhead L-shaped adjusting block to move to the right. This causes the printhead to rotate counterclockwise around the color printhead adjusting screw 2154, while the color elastic pin 2155 is always pressed against the front end and right side of the color printhead L-shaped adjusting block. When the color printhead adjusting screw 2154 moves up, under the pressing action of the color elastic pin 2155, the color printhead L-shaped adjusting block moves to the left, causing the printhead to rotate clockwise around the color printhead adjusting screw 2154.

[0060] Example 4:

[0061] Based on Example 2 or 3, refer to Figure 8 As shown, the color feeding module 23 includes a color paper feeding platform assembly 231 and a left color paper feeding servo control assembly and a right color paper feeding servo control assembly, which are detachable and disposed on the left and right sides of the color paper feeding platform assembly. The left color paper feeding servo control assembly includes a detachable left color paper feeding frame 232 disposed on the left side of the color paper feeding platform assembly 231. A left color paper feeding drive roller 233 is installed on the left color paper feeding frame 232, and a left color paper feeding servo motor 234 is installed at the end of the left color paper feeding drive roller 233. The right color paper feeding servo control assembly includes a detachable right color paper feeding frame 235 disposed on the right side of the color paper feeding platform assembly 231. A right color paper feeding drive roller 236 is installed on the right color paper feeding frame 235, and a right color paper feeding servo motor 237 is installed at the end of the right color paper feeding module 23. A color paper feeding UV lamp 238 is installed at the right end of the color feeding module 23.

[0062] In this embodiment, detachable drive rollers equipped with servo motors are respectively provided on the left and right sides of the color paper feeding platform assembly 231. When the tension and feeding speed of the printing medium of the flexographic printing device 1 are relatively stable, and no additional servo motor is needed to control the transmission speed of the printing medium when the color digital printing device body 2 is docked with the flexographic printing device 1, the drive rollers on the left and right sides of the color paper feeding platform assembly 231 can be removed, which saves costs and reduces weight. When an additional servo motor is needed to control the transmission speed of the printing medium when the flexographic printing device 1 is docked with the color digital printing device body 2, a frame, drive rollers and servo motor can be installed on the left and right sides of the color paper feeding platform 231, so that the operation of the color digital printing device body 2 and the flexographic printing device 1 is more stable when integrated and docked, thereby ensuring the printing quality.

[0063] Furthermore, the color bottom support frame 22 includes a color printhead bottom support plate 222 connected to the support rail 11 and color bottom frame side plates 221 vertically arranged on the color printhead bottom support plate 222 and forming a square frame. The color feed module 23 is fixedly connected to the color bottom frame side plates 221 located on the front side of the color printhead bottom support plate 222, and the color main side plate 2111 is fixedly connected to the color bottom frame side plates 221 located on the left and right sides of the color printhead bottom support plate 222. The color paper feed UV lamp 238 is used for the final curing of ink on the printing medium at the end of the color feed module 23 after variable data digital printing is completed.

[0064] Example 5:

[0065] Based on Example 3 or 4, refer to Figure 9 As shown, the color moisturizing component 216 includes a color moisturizing mounting frame 2161. Several color printhead moisturizing plates 2162 are arranged at intervals on the color moisturizing mounting frame 2161. The color printhead moisturizing plates 2162 are matched with the color base plate 2151. An ink leakage hole is provided at the bottom of each color printhead moisturizing plate 2162. A color scraper cartridge 2163 is installed on the front side of the color moisturizing mounting frame 2161 at a position corresponding to the color printhead moisturizing plates 2162. A color scraper ink receiving groove 21631 is provided on the color scraper ink receiving groove 21631. Several color scraper blades 2164 are provided on the front side of the color scraper ink receiving groove 21631. The color scraper blades 2164 are matched with the printheads on the color base plate 2151. An ink outlet hole is provided at the bottom of the color scraper ink receiving groove 21631. The color moisturizing mounting frame 2161 is installed at the bottom of the color main frame 211 and can move back and forth relative to the color main frame 211.

[0066] In this embodiment, the color printhead base plate assembly 215 is placed at the front end of the color printing module 21. During printing, the color moisturizing assembly 216 is placed at the rear bottom of the color printing module 21. When the printhead needs to be cleaned or moisturized after printing, the color printhead base plate assembly 215 is driven upward by the color lifting drive device to provide space for the color moisturizing assembly 216 to move. The color moisturizing mounting frame 2161 moves forward to below the color hanging base frame, so that the color printhead moisturizing plate 2162 and the part of the color base plate 2151 where the printhead is installed are interlocked. If necessary, the height of the color hanging base frame can be adjusted again by the color lifting drive device. The residual ink in the printhead is discharged by introducing cleaning fluid or positive pressure gas into the ink path. The ink is discharged into the color printhead moisturizing plate 2162 and discharged into the waste ink bucket from the ink leakage hole. For residual ink droplets at the bottom of the printhead, the color moisturizing mounting frame 2161 can be moved below the color mounting base frame, and the color scraper 2164 can be brought into contact with the bottom surface of the printhead on the color base plate 2151. Then, the color moisturizing mounting frame 2161 moves backward so that the color scraper 2164 can scrape off the residual ink droplets on the bottom surface of the printhead on the printhead base plate. The scraped-off ink droplets fall into the color scraper ink collection tray 21631 and are discharged from the ink outlet. When the printing job stops, to prevent the printhead nozzles from drying out and clogging, the color printhead moisturizing plate 2162 can be interlocked with the color base plate 2151 to moisturize the printhead. At this time, a moisturizing cotton soaked in cleaning solution can be placed in the color printhead moisturizing plate 2162.

[0067] Example 6:

[0068] Based on Example 5, referring to Figure 10As shown, a color moisturizing moving drive device is provided between the color moisturizing mounting frame 2161 and the color main frame 211. The color moisturizing moving drive device includes a color moisturizing drive motor 21651 installed at one end of the bottom of the color main frame 211. A color moisturizing drive pulley is fixedly installed at the output end of the color moisturizing drive motor 21651. The color moisturizing drive pulley is connected to the color moisturizing first driven pulley 21653 through a color moisturizing drive belt 21652. The color moisturizing first driven pulley 21653 is connected to the color moisturizing second driven pulley 21654 through a color moisturizing transmission belt 21654. Connected at 655, the second driven pulley 21655 for color moisturizing is rotatably mounted on the other end of the bottom of the main color frame 2161. A color moisturizing guide rail 21658 is mounted on the main color frame 211, and a color moisturizing connecting slider 21656 is mounted on the color moisturizing mounting frame 2161. The color moisturizing connecting slider 21656 and the color moisturizing guide rail 21658 are connected to each other. A color moisturizing belt pressure plate 21657 is fixedly mounted on the color moisturizing connecting slider 21656, and the color moisturizing belt pressure plate 21657 and the color moisturizing transmission belt 21654 are pressed together and connected.

[0069] In this embodiment, when the colored moisturizing component 216 moves back and forth, the colored moisturizing drive motor 21651 rotates, driving the colored moisturizing active pulley to rotate. Then, the colored moisturizing active belt 21652 drives the colored moisturizing first driven pulley 21653 to rotate, and then drives the colored moisturizing second driven pulley 21655 to rotate through the colored moisturizing transmission belt 21654. This ensures that the colored moisturizing transmission belt 21654 is always kept taut and rotates clockwise or counterclockwise under the drive of the colored moisturizing drive motor 21651. The colored moisturizing transmission belt 21654 is connected to the colored moisturizing mounting frame 2161 through the colored moisturizing belt pressure plate 21657 and the colored moisturizing connecting slider 21656, so that the colored moisturizing mounting frame 2161 can move back and forth when the colored moisturizing transmission belt 21654 rotates. The cooperation between the colored moisturizing guide rail 21658 and the colored moisturizing connecting slider 21656 serves two purposes: firstly, it makes the connection between the colored moisturizing component 216 and the colored moisturizing moving drive device more stable; secondly, it makes the colored moisturizing component 216 move more smoothly and steadily when it moves back and forth under the drive of the colored moisturizing transmission belt 21654.

[0070] It should be noted that the above detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0071] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments described in this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0072] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0073] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0074] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, such as rotated 90 degrees or in other orientations, and the spatial relative descriptions used herein will be interpreted accordingly.

[0075] In the detailed description above, reference has been made to the accompanying drawings, which form part of this document. In the drawings, similar symbols typically identify similar parts unless the context otherwise indicates otherwise. The illustrated embodiments described in the detailed specification, drawings, and claims are not intended to be limiting. Other embodiments may be used and other changes may be made without departing from the spirit or scope of the subject matter presented herein.

[0076] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A color digital printing device for integration with a flexographic printing apparatus, characterized by: The application relates to a color digital printing device, which comprises a color digital printing device body (2), wherein the color digital printing device body (2) comprises a color printing module (21), a color bottom support frame (22) and a color material feeding module (23), the color printing module (21) and the color material feeding module (23) are installed on the color bottom support frame (22), the bottom of the color bottom support frame (22) is connected with a support rail (11) on a flexographic printing device (1), and the relative position of the color bottom support frame (22) and the support rail (11) is adjustable; the color material feeding module (23) is arranged at the front of the color bottom support frame (22) and is used for receiving and conveying a printing medium from a flexographic material feeding module of the flexographic printing device (1); the color printing module (21) is arranged above the color bottom support frame (22), a plurality of printing nozzles are installed on the color printing module (21), the printing nozzles are located above the color material feeding module (23), the bottom surface of the printing nozzles is parallel to the upper surface of the printing medium on the color material feeding module (23) below the printing nozzles, and the spacing between the printing nozzles and the printing medium is adjustable.

2. A color digital printing device for integration with a flexographic printing apparatus according to claim 1, characterized in that: The color printing module (21) comprises a color main frame (211), a color hoisting frame (212), a color lifting frame (213), a color secondary ink cartridge assembly (214), a color nozzle bottom plate assembly (215) and a color moisturizing assembly (216), the color lifting frame (213) is sleeved outside the color hoisting frame (212), the relative height of the color lifting frame (213) and the color hoisting frame (212) is adjustable, the color nozzle bottom plate assembly (215) is installed on the bottom of the color hoisting frame (212) in parallel and is spaced left and right, the printing nozzles are installed in the color nozzle bottom plate assembly (215), the color secondary ink cartridge assembly (214) is installed at the upper end of the color hoisting frame (212); the color main frame (211) is sleeved outside the color lifting frame (213), the relative height between the color lifting frame (213) and the color main frame (211) is adjustable, the color main frame (211) is fixedly installed above the color bottom support frame (22), the color moisturizing assembly (216) is installed at the bottom of the color main frame (211), and the color moisturizing assembly (216) can move forward and backward relative to the color main frame (211).

3. A color digital printing device for integration with a flexographic printing apparatus according to claim 2, characterized in that: The color main frame (211) comprises color main side plates (2111) arranged at intervals left and right and a color main mounting plate (2112) arranged transversely between the two color main side plates (2111), the bottom ends of the color main side plates (2111) are fixedly connected to the upper ends of the color bottom support frame (22), the color lifting frame (213) is connected to the color main mounting plate (2112), and a color lifting and lowering driving device is arranged between the color lifting frame (213) and the color main mounting plate (2112), which is used to drive the color lifting frame (213) to move up and down, thereby adjusting the relative position of the color lifting frame (213) and the color main frame (211).

4. A color digital printing device for integration with a flexographic printing apparatus according to claim 3, characterized in that: The color lifting frame (213) comprises a color lifting back plate (2131) and color lifting side plates (2132) arranged on both sides of the color lifting back plate (2131) and fixedly connected to each other perpendicularly, the color lifting back plate (2131) is connected to the color main frame (211), the bottom ends of the color lifting side plates (2132) are provided with color lifting and lifting holes (2133), color lifting screws (2134) are arranged on the left and right sides of the color lifting bottom frame, the color lifting screws (2134) pass through the color lifting bottom frame from the bottom, pass through the color lifting side plates (2132) from the bottom and are arranged in the color lifting and lifting holes (2133), and the upper ends are locked and fixed by color lifting nuts, the color lifting screws (2134) are externally sleeved with color lifting springs (2135) at the positions between the color lifting side plates (2132) and the color lifting bottom frame.

5. A color digital printing device for integration with a flexographic printing apparatus according to claim 4, characterized in that: The color nozzle bottom plate assembly (215) comprises a color bottom plate (2151), color bottom plate adjusting devices arranged between the color bottom plate (2151) and the color lifting bottom frame, a plurality of printing nozzles arranged in the color bottom plate (2151), color nozzle adjusting devices arranged between the printing nozzles and the color bottom plate (2151), and a color bottom plate UV lamp (2157) arranged at the right end of the color bottom plate (2151), the long-side illumination range of the color bottom plate UV lamp (2157) covers the long-side printing range of the printing nozzles.

6. A color digital printing device for integration with a flexographic printing apparatus according to claim 5, characterized in that: The front end of the color base plate (2151) is provided with a color base plate boss (2152) protruding outward, and the rear end is provided with a color base plate adjusting groove recessed inward. The color base plate adjusting device comprises a color base plate adjusting block (2125) arranged on the periphery of the color base plate boss (2152) and a color base plate positioning pin (2126) arranged in the color base plate adjusting groove. The color base plate adjusting block (2125) is mounted on the color hanging bottom frame. Color base plate adjusting nails are respectively mounted on the left and right sides of the color base plate adjusting block (2125). The ends of the color base plate adjusting nails respectively abut the left and right sides of the color base plate boss (2152). The front end of the color base plate adjusting block (2125) is provided with a color base plate adjusting nail and a color base plate fixing screw. The end of the color base plate adjusting nail at the front end of the color base plate adjusting block (2125) abuts the front end face of the color base plate boss (2152). The end of the color base plate fixing screw is mounted in the front end face of the color base plate boss (2152).

7. A color digital printing device for integration with a flexographic printing apparatus according to claim 5, characterized in that: The color nozzle adjusting device comprises a color nozzle L-shaped adjusting block (2153) arranged at one end of the printing nozzle, a color V-shaped adjusting block (2156) arranged at the other end of the printing nozzle, a color nozzle adjusting screw (2154) mounted on the color base plate (2151) and abutting the left side of the inner corner of the color nozzle L-shaped adjusting block (2153), two color elastic column pins (2155) mounted on the color base plate (2151) and abutting the front right two sides of the short side of the color nozzle L-shaped adjusting block (2153) respectively, and a color nozzle adjusting screw (2154) mounted on the color base plate (2151) and arranged in the V-shaped groove of the color V-shaped adjusting block (2156). The contact surface of the color nozzle adjusting screw (2154) with the color nozzle L-shaped adjusting block (2156) and the color V-shaped adjusting block (2156) is a conical surface.

8. A color digital printing device for integration with a flexographic printing apparatus according to claim 1, characterized in that: The color paper feeding module (23) comprises a color paper feeding platform assembly (231) and left and right color paper feeding servo control assemblies arranged on the left and right sides of the color paper feeding platform assembly and detachable. The left color paper feeding servo control assembly comprises a color paper feeding left frame (232) arranged on the left side of the color paper feeding platform assembly (231) and detachable. A color paper feeding left drive roller (233) is mounted on the color paper feeding left frame (232). A color paper feeding left servo motor (234) is mounted at the end of the color paper feeding left drive roller (233). The right color paper feeding servo control assembly comprises a color paper feeding right frame (235) arranged on the right side of the color paper feeding platform assembly (231) and detachable. A color paper feeding right drive roller (236) is mounted on the color paper feeding right frame (235). A color paper feeding right servo motor (237) is mounted at the end of the color paper feeding right drive roller (236). A color paper feeding UV lamp (238) is mounted at the right end of the color paper feeding module (23).

9. A color digital printing device for integration with a flexographic printing apparatus according to claim 5, characterized in that: The color moisturizing assembly (216) comprises a color moisturizing mounting frame (2161), a plurality of color nozzle moisturizing plates (2162) are arranged at intervals left and right on the color moisturizing mounting frame (2161), the color nozzle moisturizing plate (2162) is matched with the color bottom plate (2151), the bottom of the color nozzle moisturizing plate (2162) is provided with an ink leakage hole, a color ink scraping box (2163) is mounted at a position corresponding to the color nozzle moisturizing plate (2162) on the front side of the color moisturizing mounting frame (2161), the color ink scraping box (2163) is provided with a color ink scraping ink receiving groove (21631), a plurality of color scraping blades (2164) are arranged on the front side in the color ink scraping ink receiving groove (21631), the color scraping blade (2164) is matched with the printing nozzle on the color bottom plate (2151), the bottom of the color ink scraping ink receiving groove (21631) is provided with an ink outlet hole, and the color moisturizing mounting frame (2161) is mounted at the bottom of the color main frame (211) and can move back and forth relative to the color main frame (211).

10. A color digital printing device for integration with a flexographic printing apparatus according to claim 9, characterized in that: The color moisturizing mounting frame (2161) and the color main frame (211) are provided with a color moisturizing movement driving device, the color moisturizing movement driving device comprises a color moisturizing driving motor (21651) mounted at one end of the bottom of the color main frame (211), a color moisturizing driving motor (21651) is fixedly mounted on the output end of the color moisturizing driving motor (21651), the color moisturizing driving motor (21651) is connected with the color moisturizing first driven pulley (21653) through the color moisturizing main drive belt (21652), the color moisturizing first driven pulley (21653) is connected with the color moisturizing second driven pulley (21655) through the color moisturizing transmission belt (21654), the color moisturizing second driven pulley (21655) is rotatably mounted at the other end of the bottom of the color main frame (211), the color main frame (211) is provided with a color moisturizing guide rail (21658), the color moisturizing mounting frame (2161) is provided with a color moisturizing connecting sliding block (21656), the color moisturizing connecting sliding block (21656) is connected with the color moisturizing guide rail (21658), and the color moisturizing connecting sliding block (21656) is fixedly provided with a color moisturizing belt pressing plate (21657).

Images