A nozzle module and an inkjet printing apparatus

Abstract

This application discloses a printhead module and inkjet printing equipment, relating to the field of inkjet printing technology. The printhead module includes a printhead frame and a printhead base plate. Several printhead base plates are provided, with mounting plates on the lower surfaces of both ends. The printhead base plates are spaced apart at the bottom of the printhead frame via the mounting plates. A first adjustment structure and a locking structure are provided between the mounting plate on one side of the printhead base plate and the printhead frame. Several openings are provided on the printhead base plate, with a printhead body positioned at each opening. A second adjustment structure is provided between the mounting plate and the printhead base plate, and a third adjustment structure is provided between the printhead base plate and each printhead body. The first adjustment structure is used to adjust the printing position of the printhead base plate and the printhead body. The second and third adjustment structures cooperate to adjust the printing angle of the printhead base plate and the printhead body. This application can flexibly adjust and correct the printing position, improving printing accuracy.

Description

Technical Field

[0001] This application relates to the field of inkjet printing technology, and in particular to a printhead module and inkjet printing equipment. Background Technology

[0002] Four-color inkjet printing, using four printheads, typically yellow, magenta, cyan, and black. These inks are sprayed sequentially onto a printing belt, where they mix to create the desired color. During printing, the spraying time for each printhead is determined by the belt's travel distance and the distance between adjacent printheads of different colors. This ensures the inks mix at the same location to print the target image or text. If one printhead shifts position, its ink will not mix at the designated location on the belt, affecting printing accuracy. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a printhead module and inkjet printing equipment that can flexibly adjust and correct the printing position, thereby improving printing accuracy.

[0004] In a first aspect, this application provides a nozzle module, comprising:

[0005] The nozzle holder has a hollowed-out bottom structure;

[0006] A printhead base plate is provided, comprising several printhead base plates. Mounting plates are provided on the lower surfaces of both ends of each printhead base plate. The printhead base plates are spaced apart at the bottom of the printhead frame via the mounting plates. A first adjustment structure and a locking structure are provided between the mounting plate and the printhead frame on one side of each printhead base plate. The locking structure is used to fix the position of the printhead base plate and the mounting plate. The printhead base plate has several openings, each with a printhead body positioned at its location. A second adjustment structure is provided between the mounting plate and the printhead base plate, and a third adjustment structure is provided between the printhead base plate and each printhead body. The first adjustment structure is used to adjust the printing position of the printhead base plate and the printhead body. The second and third adjustment structures cooperate to adjust the printing angle of the printhead base plate and the printhead body.

[0007] According to the first aspect of the present application, the printhead module has at least the following advantages: A plurality of printhead base plates are provided, each printhead base plate having a plurality of openings through which a printhead body passes. Specifically, four printhead base plates can be provided. The printhead body on each printhead base plate is responsible for inkjet printing of one color. Mounting plates are provided on the lower surfaces of both ends of each printhead base plate. The printhead base plate is connected to the printhead frame via the mounting plates at both ends, thereby fixing it to the bottom of the printhead frame. A first adjustment structure is connected to the mounting plate at one end of the printhead base plate through the printhead frame. This allows adjustment of the distance between the mounting plate and the printhead frame, thereby adjusting the printing position on the printhead body on the printhead base plate. Furthermore, the mounting plate and the printhead body... A second adjustment structure is provided between the printhead base plate and the printhead body, and a third adjustment structure is provided between the printhead base plate and each printhead body. By cooperating with the second and third adjustment structures, one end of the printhead base plate and the printhead body can be moved to adjust the printing angle of the printhead body. During adjustment, the locking structure is opened to release the fixing effect between the printhead base plate and the mounting plate. In this application, by cooperating with the first, second, and third adjustment structures, the printing position and angle of each printhead body can be adjusted, and the printing position can be flexibly adjusted and corrected. This allows inks of different colors printed in different sequences to be accurately mixed together at the same position on the tape to obtain the desired color. The printhead module proposed in this application improves printing accuracy.

[0008] According to some embodiments of the first aspect of this application, the first adjustment structure includes a first fine-tuning screw, which passes through the nozzle frame and is threadedly connected to the mounting plate.

[0009] According to some embodiments of the first aspect of this application, the second adjustment structure includes a first adjustment seat, a second fine-tuning screw, a first reset elastic element, and a first inclined push block. Two first adjustment seats and two first inclined push blocks are respectively provided. The two first adjustment seats are respectively disposed at both ends of the mounting plate. The end of the nozzle base plate is disposed between the two first adjustment seats. The first inclined push block is disposed within the corresponding first adjustment seat, extends from the first adjustment seat, and abuts against the mounting plate. The second fine-tuning screw is threadedly connected to one of the first adjustment seats and abuts against the inclined end of the corresponding first inclined push block. The first reset elastic element is disposed within the other first adjustment seat and abuts against the inclined end of the corresponding first inclined push block. One end of the nozzle base plate is provided with an elongated hole, and the mounting plate at the corresponding end is provided with a limiting post matching the elongated hole.

[0010] According to some embodiments of the first aspect of this application, the third adjustment structure includes a second adjustment seat, a third fine-tuning screw, a second reset elastic element, and a second inclined push block. Two second adjustment seats and two second inclined push blocks are provided. The second adjustment seats are respectively disposed on the nozzle base plate and located on both sides of the nozzle body near the elongated hole. The second inclined push block is disposed within the corresponding second adjustment seat and extends out from the second adjustment seat to abut against the nozzle body. The third fine-tuning screw is threadedly connected to one of the second adjustment seats and abuts against the inclined end of the corresponding second inclined push block. The second reset elastic element is disposed within the other second adjustment seat and abuts against the inclined end of the corresponding second inclined push block.

[0011] According to some embodiments of the first aspect of this application, a curing lamp assembly and a scraper structure are also included. The curing lamp assembly is disposed at the bottom of the printhead frame and located between two adjacent printhead base plates. The scraper structure is disposed below the printhead base plate and is used to scrape off ink from the nozzle of the printhead body.

[0012] Secondly, this application also provides an inkjet printing apparatus, including a printhead module as described in any embodiment of the first aspect; the inkjet printing apparatus further includes:

[0013] An unwinding mechanism, the unwinding mechanism including an unwinding roller and a first conveying assembly;

[0014] The coding mechanism is disposed at one end of the unwinding mechanism. The coding mechanism includes a second transmission component and a printing paperboard. The transmission path of the second transmission component passes through the printing paperboard. A first transfer module and a second transfer module are disposed above the printing paperboard. The second transfer module is connected to the moving end of the first transfer module. The printhead module is connected to the moving end of the second transfer module. The first transfer module is used to drive the printhead module to move in the horizontal direction, and the second transfer module is used to drive the printhead module to move in the vertical direction.

[0015] A winding mechanism is provided at one end of the inkjet printing mechanism away from the unwinding mechanism. The inkjet printing mechanism includes a third transmission component and a take-up roller. The unwinding roller releases the roll of material to be printed, so that the roll of material is sequentially transmitted through the first transmission component, the second transmission component, and the third transmission component, and finally recycled by the take-up roller.

[0016] The inkjet printing apparatus according to the first aspect of this application has at least the following beneficial effects: the unwinding mechanism releases the roll material from the unwinding roller, and the released roll material is transported by the first transmission component to the second transmission component of the coding mechanism. The second transmission component transports the roll material to the position where the printing plate has been printed. The first transfer module moves the printhead module above the printing plate. When printing is not required, the first transfer module removes the printhead module from the position where the printing plate has been printed, thus performing self-cleaning maintenance on the printhead body. In addition, during printing, the second transfer module adjusts the distance between the printhead assembly and the roll material to achieve better printing results while ensuring that the printhead body is not scratched. After printing with a combination of several printheads of different colors, the second transfer component transports the roll material to the third transfer component of the take-up mechanism. The third transfer component then recycles the printed roll material via a take-up roller, completing the roll material inkjet printing process. During this process, the printing position of the printheads is adjusted by the first and second transfer modules. Furthermore, before operation, the printing position and angle of each printhead can be adjusted by the cooperation of the first, second, and third adjustment structures of the printhead module. This allows for flexible adjustment and correction of the printing position, ensuring that inks of different colors printed in different sequences can be precisely mixed together at the same position on the tape, thereby improving the printing accuracy of the roll material.

[0017] According to some embodiments of the first aspect of this application, the second transmission component includes a drive roller disposed on the feed side of the printed paperboard, and an encoding synchronizer is provided at the end of the drive roller for detecting the length of the roll material passing through the drive roller; when the roll material passes through the drive roller, the printing surface of the roll material is in contact with the transmission surface of the drive roller.

[0018] According to some embodiments of the first aspect of this application, the second transmission component includes a first active roller and a second active roller, the first active roller and the second active roller being respectively disposed on the feed side and the discharge side of the printed paperboard.

[0019] According to some embodiments of the first aspect of this application, the unwinding mechanism further includes a web-correcting module, a corona module, a dust removal module, and a preheating module, and the transmission path of the first transmission component passes sequentially through the web-correcting module, the corona module, the dust removal module, and the preheating module.

[0020] According to some embodiments of the first aspect of this application, the coding mechanism further includes a water-cooled roller assembly, a curing module, and a detection module, wherein the transmission path of the second transmission component passes sequentially through the printed paperboard, between the water-cooled roller assembly and the curing module, and the detection module.

[0021] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0022] Additional aspects and advantages of this application will become apparent and readily understood in conjunction with the following description of the embodiments, in which:

[0023] Figure 1 This is a schematic diagram of the structure of a nozzle module provided in some embodiments of this application;

[0024] Figure 2 This is a structural schematic diagram of the nozzle module provided in some embodiments of this application from another perspective;

[0025] Figure 3 This is a schematic diagram of the structure of the nozzle base plate and nozzle body provided in some embodiments of this application;

[0026] Figure 4 Top view of the nozzle base plate and nozzle body provided in some embodiments of this application;

[0027] Figure 5 Cross-sectional views of the nozzle base plate and nozzle body provided for some embodiments of this application;

[0028] Figure 6 This is a schematic diagram of the structure of an inkjet printing apparatus provided in some embodiments of this application;

[0029] Figure 7 A front view of an inkjet printing apparatus provided in some embodiments of this application;

[0030] Figure 8 This is a schematic diagram of the structure of the encoding synchronizer section provided in some embodiments of this application.

[0031] The attached icons are numbered as follows:

[0032] Nozzle module 100; Nozzle holder 110; Nozzle base plate 120; Elongated hole 121; Mounting plate 130; Limiting post 131; Nozzle body 140; First fine-tuning screw 150; First adjusting seat 161; Second fine-tuning screw 162; First reset elastic element 163; First inclined push block 164; Second adjusting seat 171; Third fine-tuning screw 172; Second reset elastic element 173; Second inclined push block 174; Curing lamp assembly 181; Scraper structure 182; Unwinding mechanism 200; Feeding roller 210; Tracking module 220; Corona module 230; Dust removal module 240; Preheating module 250; Inkjet printing mechanism 300; Printing board 310; First transfer module 320; Second transfer module 330; Drive roller 341; Encoding synchronizer 342; First drive roller 351; Second drive roller 352; Water-cooled roller assembly 360; Curing module 370; Detection module 380; Rewinding mechanism 400; Rewinding roller 410; Leveling board 420. Detailed Implementation

[0033] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0034] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0035] In the description of this application, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0036] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0037] Four-color inkjet printing, using four printheads, typically yellow, magenta, cyan, and black. These inks are sprayed sequentially onto a printing belt, where they mix to create the desired color. During printing, the spraying time for each printhead is determined by the belt's travel distance and the distance between adjacent printheads of different colors. This ensures the inks mix at the same location to print the target image or text. If one printhead shifts position, its ink will not mix at the designated location on the belt, affecting printing accuracy.

[0038] Based on this, this application provides a nozzle module to solve the aforementioned technical problems. The technical solutions proposed in this application will be described in detail below.

[0039] Firstly, referring to Figures 1 to 5 This application provides a nozzle module 100, including: a nozzle holder 110 and a nozzle base plate 120. The nozzle holder 110 has a hollowed-out bottom structure. Several nozzle base plates 120 are provided, and mounting plates 130 are provided on the lower surfaces of both ends of the nozzle base plates 120. The nozzle base plates 120 are spaced apart at the bottom of the nozzle holder 110 via the mounting plates 130. A first adjustment structure and a locking structure are provided between the mounting plate 130 on one side of the nozzle base plate 120 and the nozzle holder 110. The locking structure is used to fix the nozzle base plate 120. The mounting plate 130 is positioned such that the nozzle base plate 120 has several openings, and each opening is equipped with a nozzle body 140. A second adjustment structure is provided between the mounting plate 130 and the nozzle base plate 120, and a third adjustment structure is provided between the nozzle base plate 120 and each nozzle body 140. The first adjustment structure is used to adjust the printing position of the nozzle base plate 120 and the nozzle body 140. The second and third adjustment structures are used in conjunction to adjust the printing angle of the nozzle base plate 120 and the nozzle body 140.

[0040] Several printhead base plates 120 are provided, each with several openings through which printhead bodies 140 pass. Specifically, four printhead base plates 120 can be provided. Each printhead body 140 on each printhead base plate 120 is responsible for inkjet printing of one color. Mounting plates 130 are provided on the lower surfaces of both ends of each printhead base plate 120. The printhead base plate 120 is connected to the printhead frame 110 via the mounting plates 130 at both ends, thus fixing it to the bottom of the printhead frame 110. A first adjustment structure is connected to one end of the mounting plate 130 of the printhead base plate 120 through the printhead frame 110. This allows adjustment of the distance between the mounting plate 130 and the printhead frame 110, thereby adjusting the printing position on the printhead body 140 on the printhead base plate 120. Furthermore, the mounting plate 130 and the printhead body 140... A second adjustment structure is provided between the printhead base plate 120 and the printhead body 140, and a third adjustment structure is provided between the printhead base plate 120 and each printhead body 140. By cooperating with the second and third adjustment structures, one end of the printhead base plate 120 and the printhead body 140 can be moved to adjust the printing angle of the printhead body 140. During adjustment, the locking structure is opened to release the fixing effect between the printhead base plate 120 and the mounting plate 130. In this application, by cooperating with the first, second and third adjustment structures, the printing position and angle of each printhead body 140 can be adjusted, and the printing position can be flexibly adjusted and corrected. This allows inks of different colors printed in different sequences to be accurately mixed together at the same position on the tape to obtain the desired color. The printhead module 100 proposed in this application improves the printing accuracy.

[0041] Reference Figures 2 to 4 It is understood that the first adjustment structure includes a first fine-tuning screw 150, which passes through the printhead holder 110 and is threadedly connected to the mounting plate 130. By turning the first fine-tuning screw 150, the distance between the mounting plate 130 and the printhead holder 110 can be adjusted, thereby adjusting the printing position on the printhead body 140 on the printhead base plate 120. Figure 2 The front and rear positions of the printhead body 140 can be adjusted and corrected, so that inks of different colors printed in different sequences can be accurately mixed together at the same position on the tape, thus improving printing accuracy.

[0042] Reference Figures 3 to 5It is understood that the second adjustment structure includes a first adjustment seat 161, a second fine-tuning screw 162, a first reset elastic element 163, and a first inclined push block 164. Two first adjustment seats 161 and two first inclined push blocks 164 are provided. The two first adjustment seats 161 are respectively located at both ends of the mounting plate 130, and the end of the nozzle base plate 120 is located between the two first adjustment seats 161. The first inclined push block 164 is located within the corresponding first adjustment seat 161 and extends from the first... The adjusting seat 161 extends out and abuts against the mounting plate 130. The second fine-tuning screw 162 is threadedly connected to one of the first adjusting seats 161 and abuts against the inclined end of the corresponding first inclined push block 164. The first reset elastic element 163 is disposed in the other first adjusting seat 161 and abuts against the inclined end of the corresponding first inclined push block 164. One end of the nozzle base plate 120 is provided with an elongated hole 121 and the mounting plate 130 at the corresponding end is provided with a limiting post 131 that matches the elongated hole 121. It should be noted that the mounting plates 130 at both ends of the nozzle base plate 120 can be provided with a second adjustment structure. The nozzle base plate 120 can be adjusted together by the second adjustment structures at both ends to improve the stability of the adjustment. This application does not limit this. During adjustment, when the second fine-tuning screw 162 is turned downward, since the lower end of the second fine-tuning screw 162 abuts against the inclined end of the first inclined push block 164, when the second fine-tuning screw 162 is pressed downward, it will push the first inclined push block 164 towards the inside of the nozzle base plate 120. At the same time, the first reset elastic member 163 that abuts against another first inclined push block 164 will be lifted. 164 moves outward from the printhead base plate 120, thereby adjusting the left and right position of the end of the printhead base plate 120 with the elongated hole 121; in addition, when the second fine-tuning screw 162 is turned upward, due to the action of the first reset elastic member 163, the first inclined push block 164 abutting against the first reset elastic member 163 moves inward from the printhead base plate 120, and pushes the first inclined push block 164 abutting against the second fine-tuning screw 162 to move outward from the printhead base plate 120. The elongated hole 121 and the limiting post 131 limit the movement of the printing base plate, improve the stability during adjustment, and thereby adjust the angle of the printhead base plate 120.

[0043] Reference Figure 3 and Figure 4It is understood that the third adjustment structure includes a second adjustment seat 171, a third fine-tuning screw 172, a second reset elastic element 173, and a second inclined push block 174. There are two second adjustment seats 171 and two inclined push blocks 174. The second adjustment seats 171 are respectively set on the nozzle base plate 120 and located on both sides of the nozzle body 140 near the end of the elongated hole 121. The second inclined push block 174 is set in the corresponding second adjustment seat 171 and extends out of the second adjustment seat 171 to abut against the nozzle body 140. The third fine-tuning screw 172 is threadedly connected to one of the second adjustment seats 171 and abuts against the inclined end of the corresponding second inclined push block 174. The second reset elastic element 173 is set in the other second adjustment seat 171 and abuts against the inclined end of the corresponding second inclined push block 174. Similarly, since the nozzle base plate 120 is adjusted by the second adjustment structure, the position of the opening on the nozzle base plate 120 will also change. In order to adapt to the position of the opening of the nozzle base plate 120, the third adjustment structure is used for adaptive adjustment. At the same time, the position of each nozzle body 140 can also be further adjusted by the third adjustment structure. The specific structure and adjustment method of the third adjustment structure are similar to the second adjustment structure proposed in the above embodiment, and will not be repeated here.

[0044] Reference Figure 2 It is understood that the printhead module 100 provided in this application also includes a curing lamp assembly 181 and a scraper structure 182. The curing lamp assembly 181 is disposed at the bottom of the printhead holder 110 and located between two adjacent printhead base plates 120. The scraper structure 182 is disposed below the printhead base plate 120 and is used to scrape off the ink at the nozzle of the printhead body 140. With the curing lamp assembly 181 located between each pair of adjacent printhead base plates 120, the roll of material, after being printed by one printhead body 140, will immediately undergo curing before moving to the next printing base plate to await printing by the next printhead body 140 of the next color material, reducing ink splashing and improving printing quality. In addition, after a period of inactivity or pause, the nozzles of the printhead body 140 are prone to clogging, which can cause ink jetting problems or incomplete ink jetting during the next printing. A scraper structure 182 is provided below each printhead base plate 120. This scraper structure 182 can be used to scrape off residual ink at the nozzles of the printhead body 140, thereby completing the self-cleaning process of the printhead body 140. Specifically, an ink collection box can also be provided below the scraper structure 182 to collect the scraped residual ink. The scraper structure 182 can effectively clean the residual ink, prevent the nozzles of the printhead body 140 from clogging, and improve the printing effect.

[0045] Secondly, referring to Figure 1 , Figure 6 and Figure 7This application also provides an inkjet printing apparatus, including a printhead module 100 as described in any embodiment of the first aspect. The structure and function of the printhead module 100 can be referred to the embodiments described in the first aspect, and will not be repeated here. In addition, the inkjet printing apparatus also includes an unwinding mechanism 200, a coding mechanism 300, and a rewinding mechanism 400. The unwinding mechanism 200 includes a feed roller 210 and a first transmission component. The coding mechanism 300 is disposed at one end of the unwinding mechanism 200 and includes a second transmission component and a printing platen 310. The transmission path of the second transmission component passes through the printing platen 310. A first transfer module 320 and a second transfer module 330 are disposed above the printing platen 310. The second transfer module 330 is connected to the moving end of the first transfer module 320. The printhead module 100 is connected to the moving end of the second transfer module 330. The first transfer module 320 is used to drive the printhead module 100 to move in the horizontal direction, and the second transfer module 330 is used to drive the printhead module 100 to move in the vertical direction. The winding mechanism 400 is located at the end of the coding mechanism 300 away from the unwinding mechanism 200. The coding mechanism 300 includes a third transmission component and a take-up roller 410. The unwinding roller 210 releases the roll of material to be printed, so that the roll of material is sequentially transmitted through the first transmission component, the second transmission component and the third transmission component, and finally recycled by the take-up roller 410.

[0046] The unwinding mechanism 200 releases the roll material from the unwinding roller 210. The released roll material is transported by the first transmission component to the second transmission component of the coding mechanism 300. The second transmission component transports the roll material to the position of the printing plate 310. The first transfer module 320 moves the printhead module 100 above the printing plate 310. When printing is not required, the first transfer module 320 removes the printhead module 100 from the position of the printing plate 310, and performs self-cleaning maintenance on the printhead body 140. In addition, during printing, the second transfer module 330 adjusts the distance between the printhead assembly and the roll material to achieve better printing results while ensuring that the printhead body 140 is not scratched. After several different colors... After the printhead body 140 is assembled and printed, the second transfer component transports the roll material to the third transfer component of the take-up mechanism 400. The third transfer component recycles the printed roll material through the take-up roller 410, completing the roll material inkjet printing process. During this process, the printing position of the printhead body 140 is adjusted by the first transfer module 320 and the second transfer module 330. Furthermore, before operation, the printing position and angle of each printhead body 140 can be adjusted by the cooperation of the first, second, and third adjustment structures of the printhead module 100. This allows for flexible adjustment and correction of the printing position, ensuring that inks of different colors printed in different sequences are precisely mixed together at the same position on the tape, thereby improving the printing accuracy of the roll material. It should be noted that the first, second, and third transfer components described above are all composed of multiple guide rollers, and this application does not impose any limitations on this.

[0047] Reference Figures 6 to 8 It is understood that the second transmission component includes a drive roller 341, which is located on the feed side of the printing plate 310. An encoder synchronizer 342 is provided at the end of the drive roller 341. The encoder synchronizer 342 is used to detect the length of the roll material passing through the drive roller 341. When the roll material passes through the drive roller 341, the printing surface of the roll material is in contact with the transmission surface of the drive roller 341. In four-color inkjet printing, the inkjet time of each printhead is generally determined based on the tape travel distance and the distance between adjacent different color printheads. Different colors of ink are mixed at the same position to print the target image or text. Detecting the roll material travel distance is particularly crucial. A drive roller 341 with an encoder is provided on the front side of the printing plate 310, and when the roll material passes through the drive roller 341, its printing surface is in contact with the transmission surface of the drive roller 341. This allows for direct detection of the distance the printing surface moves, avoiding the influence of roll material thickness on the encoder's detection accuracy and improving the precision of printing timing control.

[0048] Reference Figure 6It is understood that the second transmission assembly includes a first drive roller 351 and a second drive roller 352, which are respectively disposed on the feed side and the discharge side of the printed paperboard 310. That is, rollers with driving force are provided on both the feed side and the discharge side, improving the stability of roll material transportation. Figure 6 The first active roller 351 and the second active roller 352 marked in the text are only schematic markings. They can be set near the feeding side and the discharging side of the printed paperboard 310. This application does not make specific limitations on them.

[0049] Reference Figure 6 and Figure 7 It is understood that the unwinding mechanism 200 also includes a web guiding module 220, a corona treatment module 230, a dust removal module 240, and a preheating module 250. The transmission path of the first transmission component passes through the web guiding module 220, the corona treatment module 230, the dust removal module 240, and the preheating module 250 in sequence. In the unwinding mechanism 200, the web guiding mechanism guides the roll material released from the unwinding roller 210. Then, the corona treatment module 230 performs corona treatment on the roll material, ensuring uniform ink adhesion during subsequent printing. The dust removal module 240 then cleans the dust off the surface of the roll material, and the heating plate of the preheating module 250 heats the roll material. Through the combined efforts of the corona treatment module 230, the dust removal module 240, and the preheating module 250, the ink adhesion is improved, thereby enhancing the overall printing effect of the roll material.

[0050] Continue to refer to Figure 6 and Figure 7 It is understood that the coding mechanism 300 also includes a water-cooled roller assembly 360, a curing module 370, and a detection module 380. The transmission path of the second transmission component passes sequentially through the printed paperboard, between the water-cooled roller assembly 360 and the curing module 370, and then through the detection module 380. After the roll material is printed on the printed paperboard, it is cooled by the water-cooled roller assembly 360. Simultaneously, it is cured by ultraviolet light by the curing component located below the water-cooled roller assembly 360, which increases the solidification speed of the ink on the roll material. Subsequently, the optically based detection module 380 performs quality inspection on the printing effect of the roll material, which may include whether the roll material scale interval is within the error range and whether there are any missing prints.

[0051] Continue to refer to Figure 6 and Figure 7 It is understood that the winding mechanism 400 also includes a leveling board 420, which is located before the take-up roller 410. The third transmission component feeds the roll into the leveling board 420 for leveling, so that the roll can be neatly wound and stored on the wheel of the take-up roller 410.

[0052] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A nozzle module, characterized in that, include: The nozzle holder has a hollowed-out bottom structure; A printhead base plate is provided, comprising several printhead base plates. Mounting plates are provided on the lower surfaces of both ends of each printhead base plate. The printhead base plates are spaced apart at the bottom of the printhead frame via the mounting plates. A first adjustment structure and a locking structure are provided between the mounting plate and the printhead frame on one side of each printhead base plate. The locking structure is used to fix the position of the printhead base plate and the mounting plate. The printhead base plate has several openings, each opening being occupied by a printhead body. A second adjustment structure is provided between the mounting plate and the printhead base plate, and a third adjustment structure is provided between the printhead base plate and each printhead body. The first adjustment structure is used to adjust the printing position of the printhead base plate and the printhead body. The second and third adjustment structures cooperate to adjust the printing angle of the printhead base plate and the printhead body. The first adjustment structure includes a first fine-tuning screw, which passes through the nozzle frame and is threadedly connected to the mounting plate. The second adjustment structure includes a first adjustment seat, a second fine-tuning screw, a first reset elastic element, and a first inclined push block. Two first adjustment seats and two first inclined push blocks are provided. The two first adjustment seats are respectively located at both ends of the mounting plate. The end of the nozzle base plate is located between the two first adjustment seats. The first inclined push block is located within the corresponding first adjustment seat, extends out of the first adjustment seat, and abuts against the mounting plate. The second fine-tuning screw is threadedly connected to one of the first adjustment seats and abuts against the inclined end of the corresponding first inclined push block. The first reset elastic element is located within the other first adjustment seat and abuts against the inclined end of the corresponding first inclined push block. One end of the nozzle base plate is provided with an elongated hole, and the corresponding end of the mounting plate is provided with a limiting post matching the elongated hole. The third adjustment structure includes a second adjustment seat, a third fine-tuning screw, a second reset elastic element, and a second inclined push block. Two second adjustment seats and two second inclined push blocks are provided. The second adjustment seats are respectively disposed on the nozzle base plate and located on both sides of the nozzle body near the elongated hole. The second inclined push block is disposed within the corresponding second adjustment seat and extends out from the second adjustment seat to abut against the nozzle body. The third fine-tuning screw is threadedly connected to one of the second adjustment seats and abuts against the inclined end of the corresponding second inclined push block. The second reset elastic element is disposed within the other second adjustment seat and abuts against the inclined end of the corresponding second inclined push block.

2. The nozzle module according to claim 1, characterized in that, It also includes a curing lamp assembly and a scraper structure. The curing lamp assembly is disposed at the bottom of the printhead frame and between two adjacent printhead base plates. The scraper structure is disposed below the printhead base plate and is used to scrape off the ink at the nozzle of the printhead body.

3. An inkjet printing device, characterized in that, Includes the nozzle module as described in any one of claims 1 to 2; The inkjet printing equipment also includes: An unwinding mechanism, the unwinding mechanism including an unwinding roller and a first conveying assembly; The coding mechanism is disposed at one end of the unwinding mechanism. The coding mechanism includes a second transmission component and a printing paperboard. The transmission path of the second transmission component passes through the printing paperboard. A first transfer module and a second transfer module are disposed above the printing paperboard. The second transfer module is connected to the moving end of the first transfer module. The printhead module is connected to the moving end of the second transfer module. The first transfer module is used to drive the printhead module to move in the horizontal direction, and the second transfer module is used to drive the printhead module to move in the vertical direction. A winding mechanism is provided at one end of the inkjet printing mechanism away from the unwinding mechanism. The inkjet printing mechanism includes a third transmission component and a take-up roller. The unwinding roller releases the roll of material to be printed, so that the roll of material is sequentially transmitted through the first transmission component, the second transmission component, and the third transmission component, and finally recycled by the take-up roller.

4. The inkjet printing equipment according to claim 3, characterized in that, The second transmission component includes a drive roller disposed on the feed side of the printed paperboard. The end of the drive roller is provided with an encoding synchronizer, which is used to detect the length of the roll material passing through the drive roller. When the roll material passes through the drive roller, the printing surface of the roll material is in contact with the driving surface of the drive roller.

5. The inkjet printing equipment according to claim 3, characterized in that, The second transmission component includes a first active roller and a second active roller, which are respectively disposed on the feed side and the discharge side of the printed paperboard.

6. The inkjet printing equipment according to claim 3, characterized in that, The unwinding mechanism further includes a web-correcting module, a corona module, a dust removal module, and a preheating module. The transmission path of the first transmission component passes through the web-correcting module, the corona module, the dust removal module, and the preheating module in sequence.

7. The inkjet printing equipment according to claim 3, characterized in that, The coding mechanism further includes a water-cooled roller assembly, a curing module, and a detection module. The transmission path of the second transmission component passes sequentially through the printed cardboard, between the water-cooled roller assembly and the curing module, and the detection module.

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