Spray head assembly suitable for wide-breadth ink-jet printer

Abstract

The utility model provides a nozzle assembly suitable for a wide-breadth ink-jet printer, the nozzle assembly comprises a housing, at least two nozzle units arranged at the bottom of the housing, and a fixed frame arranged in the housing, and the fixed frame comprises at least two installation grooves used for installing the nozzle units. According to the spray head assembly suitable for the wide-breadth ink-jet printer, the fixed frame and the plurality of mounting grooves are arranged, so that the problems that a standard spray head is difficult to stably mount and a plurality of spray heads are difficult to splice are solved, and meanwhile, an ink supply and temperature control system suitable for wide-breadth printing is provided through the ink path connecting nozzle and the heat circulation system; the ink supply and temperature control system has the advantages of stable installation, multi-nozzle splicing and suitability for wide-breadth printing.

Description

Technical Field

[0001] The utility model relates to the technical field of printing, and more particularly to a nozzle assembly suitable for a wide-format inkjet printer. Background Art

[0002] The description in this section merely provides background information related to the disclosure of the present utility model and does not constitute prior art.

[0003] Wide-format printers are now widely used in a variety of large-scale printing applications. However, existing wide-format printer printhead assemblies present several issues. Traditional office inkjet printer printheads, such as those purchased from Brother's official website in Japan, are designed primarily for small printers and are difficult to directly apply to wide-format printers. These standard printheads lack the necessary mounting holes, preventing them from being securely installed on wide-format printers. Furthermore, their size design is not suitable for splicing multiple printheads together, a significant drawback for wide-format printers that need to cover a larger print area.

[0004] These issues create numerous difficulties when adapting standard office printheads for wide-format printers. First, the lack of a suitable mounting mechanism prevents the printhead from being stably fixed to the printer, potentially affecting print accuracy and quality. Second, the coverage area of ​​a single printhead is limited, and the lack of a multi-printer joint design makes it difficult to achieve the large area coverage required for wide-format printing. This not only limits the printer's application range but can also lead to low printing efficiency.

[0005] Furthermore, standard printheads often lack the ink supply and temperature control systems suitable for wide-format printers. Wide-format printing typically requires a larger ink supply and more precise temperature control to ensure stable and consistent printing over extended periods. These deficiencies in standard printheads can lead to unstable print quality and even damage the printhead.

[0006] It should be noted that the above technical background is merely for the purpose of providing a clear and complete description of the technical solutions of the present invention and to facilitate understanding by those skilled in the art. It should not be assumed that the above technical solutions are well known to those skilled in the art simply because they are described in the background technology section of the present invention. Summary of the Invention

[0007] The technical problem to be solved by the utility model is to provide a nozzle assembly suitable for a wide-format inkjet printer.

[0008] In order to solve the above technical problems, the utility model provides a nozzle assembly suitable for a wide-format inkjet printer, wherein the nozzle assembly includes a shell, at least two nozzle units arranged at the bottom of the shell, and a fixing frame arranged in the shell, wherein the fixing frame includes at least two mounting grooves for mounting the nozzle units.

[0009] Preferably, the nozzle assembly includes two nozzle units, the fixing frame includes two mounting slots for mounting the nozzle units, namely a second mounting slot and a third mounting slot, and the nozzle unit is fixed to the fixing frame by a plurality of second fixing screws.

[0010] Preferably, an ink path nozzle is further provided in the shell, and a first mounting groove is provided on the upper surface of the fixed frame, and the first mounting groove is located between the second mounting groove and the third mounting groove, and a plurality of through holes are provided at the bottom of the first mounting groove, and the ink path nozzle is installed in the first mounting groove, and the lower end surface of the ink path nozzle is connected with the ink inlet and the ink outlet of the nozzle unit, and the upper end of the ink path nozzle is respectively provided with an ink return nozzle and an ink inlet nozzle, and the ink return nozzle is connected with an ink return tube, and the ink inlet nozzle is connected with an ink inlet tube, and the upper ends of the ink return tube and the ink inlet tube extend from the upper end of the shell, and the ink of the nozzle assembly enters the nozzle unit from the ink inlet tube and is returned from the ink return tube.

[0011] Preferably, the fixing frame is made of graphite material.

[0012] Preferably, the second mounting slot and the third mounting slot are vertically penetrated, and the first thermal cycle box and the second thermal cycle box are installed in the second mounting slot and the third mounting slot respectively, and the first thermal cycle box and the second thermal cycle box are respectively attached to the upper surfaces of the two nozzle units.

[0013] Preferably, the first thermal circulation box is provided with a first thermal circulation nozzle and a second thermal circulation nozzle, the second thermal circulation box is provided with a third thermal circulation nozzle and a fourth thermal circulation nozzle, the nozzle assembly also includes a first thermal circulation water pipe, a second thermal circulation water pipe and a third thermal circulation water pipe, the lower end of the first thermal circulation water pipe is connected to the first thermal circulation nozzle, the lower end of the second thermal circulation water pipe is connected to the third thermal circulation nozzle, and the two ends of the third thermal circulation water pipe are respectively connected to the second thermal circulation nozzle and the fourth thermal circulation nozzle, the cooling water enters the first thermal circulation box from the first thermal circulation water pipe, enters the second thermal circulation box through the third thermal circulation water pipe, and flows out from the second thermal circulation water pipe, and the upper ends of the first thermal circulation water pipe and the second thermal circulation water pipe extend from the upper end of the shell.

[0014] Preferably, the housing comprises a first housing and a second housing spliced ​​together, and the first housing and the second housing are fixedly connected by a plurality of first fixing screws.

[0015] Preferably, the upper end of the shell has a first opening and a second opening, and the first opening and the second opening are respectively installed with seals, namely the first seal and the second seal. The first seal has two through holes, for the first hot circulation water pipe and the ink return pipe to extend out respectively, and the second seal has two through holes, for the second hot circulation water pipe and the ink inlet pipe to extend out respectively.

[0016] Preferably, a third opening is further provided at the upper end of the shell, and a data connector is installed on the third opening. The data connector is sealed on the third opening by a third sealing ring. The part of the data connector located outside the shell is provided with an external data connector, and the part of the data connector located inside the shell is provided with an internal data connector. The internal data connector is connected to the signal of the nozzle unit.

[0017] Preferably, the nozzle unit is sealed and installed with the first mounting groove and the second mounting groove respectively through a second sealing ring, and the first thermal cycle box and the second thermal cycle box are sealed and installed with the first mounting groove and the second mounting groove respectively through a first sealing ring.

[0018] By means of the above technical solution, the beneficial effects of the present invention are as follows:

[0019] The utility model discloses a nozzle assembly suitable for wide-format inkjet printers, which solves the problems of difficult stable installation of standard nozzles and splicing of multiple nozzles by providing a fixing frame and multiple mounting slots. At the same time, through the ink path nozzle and the heat circulation system, an ink supply and temperature control system suitable for wide-format printing is provided. The utility model has the advantages of stable installation, splicing of multiple nozzles, and ink supply and temperature control system suitable for wide-format printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the exploded structure of the printer nozzle assembly of the present invention.

[0021] Figure 2 It is a structural schematic diagram of the printer nozzle assembly of the present utility model.

[0022] Figure 3 It is a schematic diagram of the internal structure of the printer nozzle assembly of the present utility model.

[0023] Figure 4 It is a structural schematic diagram of the fixing frame of the utility model.

[0024] 1. Shell; 11. First shell; 12. Second shell; 13. First fixing screw; 2. Nozzle unit; 3. Fixing frame; 4. Second fixing screw; 51. Ink return pipe; 52. Ink inlet pipe; 53. Ink path nozzle; 531. Ink return nozzle; 532. Ink inlet nozzle; 61. First thermal cycle box; 62. Second thermal cycle box; 611. First thermal cycle nozzle; 612. Second thermal cycle nozzle; 621. Third thermal cycle nozzle; 622. Fourth thermal cycle nozzle; 63. First sealing ring; 64. Second sealing ring; 81. First thermal cycle water pipe; 82. Second thermal cycle water pipe; 83. Third thermal cycle water pipe; 9. Data connector; 91. External data connector; 92. Internal data connector; 7. Sealing element; 93. Third sealing ring; 31. First mounting groove; 32. Second mounting groove; 33. Third mounting groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] It should be noted that, in the description of this utility model, the terms "first," "second," etc., are used solely for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0027] like Figure 1-4 As shown, the present invention provides a nozzle assembly suitable for wide-format inkjet printers, comprising a housing 1, at least two nozzle units 2 disposed at the bottom of the housing 1, and a fixing frame 3 disposed within the housing 1. The fixing frame 3 includes at least two mounting slots for mounting the nozzle units 2. This design ensures the stability and accuracy of the nozzle units 2 in wide-format printers, thereby improving printing quality and device reliability.

[0028] In practice, wide-format printers require multiple printhead units 2 to work together to achieve large-format printing. Traditional printhead designs are not suitable for this requirement. Therefore, designing a mounting frame 3 that can accommodate multiple printhead units 2 and ensure their stability is crucial. By providing multiple mounting slots, the printhead units 2 can be effectively secured within the mounting frame 3, thus solving the installation and securing issues of the printhead assembly in wide-format printers.

[0029] The housing 1 provides an integral structural framework. The printhead unit 2 is the core component that actually performs inkjet printing, while the mounting frame 3 securely mounts the printhead unit 2 within the housing 1 via mounting slots. To ensure the stability of the printhead assembly, the mounting frame 3 is made of high-strength material, and its design takes into account the distance and angle between the printhead units 2 to ensure consistent and accurate printing results.

[0030] For example, the fixing frame 3 can be made of graphite, a material with excellent stability and durability, capable of effectively withstanding vibrations and shocks during operation of the printhead unit 2. Furthermore, an ink nozzle 53 can be provided within the housing 1, communicating with the ink inlet and outlet of the printhead unit 2 through the ink nozzle 53, thereby achieving a circulating supply of ink.

[0031] Compared to existing technologies, the printhead assembly of the present invention offers significant advantages. First, the design of the fixing frame 3 solves the installation and fixation issues of the printhead unit 2 in a wide-format printer, improving the stability of the device and printing quality. Second, the use of a high-strength material for the fixing frame 3 enhances the durability and reliability of the printhead assembly. Furthermore, the provision of an ink nozzle 53 enables a circulating supply of ink, further improving the efficiency and stability of the printhead assembly.

[0032] In summary, the present invention provides a nozzle assembly suitable for wide-format inkjet printers. Through the design of the shell 1, the nozzle unit 2 and the fixing frame 3, the installation and fixation problems of the nozzle assembly in the wide-format printer are solved, thereby improving the printing effect and the reliability of the equipment.

[0033] The present application also proposes that the nozzle assembly includes two nozzle units 2, and the fixing frame 3 includes two mounting slots for mounting the nozzle units 2, namely a second mounting slot 32 and a third mounting slot 33, and the nozzle unit 2 is fixed to the fixing frame 3 by multiple second fixing screws 4.

[0034] The nozzle assembly includes two nozzle units 2 and a fixing frame 3. The fixing frame 3 is provided with a second mounting slot 32 and a third mounting slot 33. The nozzle units 2 are fixed to the fixing frame 3 via a plurality of second fixing screws 4. By providing two mounting slots on the fixing frame 3, the two nozzle units 2 can be installed in the two slots respectively and fixed with a plurality of fixing screws, thus solving the problem of fixing and installing the nozzle units 2.

[0035] The second mounting slot 32 and the third mounting slot 33 are each used to accommodate two nozzle units 2. Multiple second fixing screws 4 are used to securely secure the nozzle units 2 within the mounting slots, preventing them from shifting or loosening during operation. The second fixing screws 4 can be standard threaded fasteners made of high-strength steel or other durable materials to ensure reliable and durable fixation. The size and shape of the mounting slots can be designed based on the specific specifications of the nozzle units 2 to ensure a tight fit and stable fixation.

[0036] By providing two mounting slots on the fixing frame 3 and securing the printhead unit 2 within the slots using multiple fixing screws, the problems of securing and installing the printhead unit 2 are effectively resolved. Compared to the prior art, the technical solution of this application provides a more stable and reliable fixing method, ensuring the normal operation of the printhead unit 2 in a wide-format printer. As a result, this application not only improves the convenience of installation but also enhances the stability and reliability of the printhead unit 2.

[0037] An ink path nozzle 53 is provided in the shell 1, and a first mounting groove 31 is provided on the upper surface of the fixed frame 3. The first mounting groove 31 is located between the second mounting groove 32 and the third mounting groove 33. A plurality of through holes are provided at the bottom of the first mounting groove 31. The ink path nozzle 53 is installed in the first mounting groove 31. The lower end surface of the ink path nozzle 53 is connected with the ink inlet and the ink outlet of the nozzle unit 2. The upper end of the ink path nozzle 53 is respectively provided with an ink return nozzle 531 and an ink inlet nozzle 532. The ink return nozzle 531 is connected to the ink return tube 51, and the ink inlet nozzle 532 is connected to the ink inlet tube 52. The upper ends of the ink return tube 51 and the ink inlet tube 52 extend from the upper end of the shell 1. The ink of the nozzle assembly enters the nozzle unit 2 from the ink inlet tube 52 and returns from the ink return tube 51.

[0038] The present application solves the problem of connecting the ink circuit nozzle 53 with the nozzle unit 2 in the nozzle assembly by providing an ink circuit nozzle 53 within the housing 1 and connecting it to the ink inlet and ink outlet of the nozzle unit 2. The ink circuit nozzle 53 is installed in the first mounting groove 31 provided on the upper surface of the fixed frame 3. The first mounting groove 31 is located between the second mounting groove 32 and the third mounting groove 33. The multiple through holes provided at the bottom facilitate the installation and fixation of the ink circuit nozzle 53. The upper end of the ink circuit nozzle 53 is provided with an ink return nozzle 531 and an ink inlet nozzle 532, which are respectively connected to the ink return pipe 51 and the ink inlet pipe 52 to realize the ink inlet and outlet and ink return functions. The ink return pipe 51 and the ink inlet pipe 52 extend from the upper end of the housing 1 to facilitate the connection and maintenance of the ink pipeline. Ink is supplied through the ink inlet pipe 52. After the nozzle unit 2 completes the inkjet work, the excess ink flows back through the ink return pipe 51, ensuring the stability and reliability of inkjet printing.

[0039] To achieve the above functions, the ink nozzle 53 can be made of a variety of materials and structures. For example, the ink nozzle 53 can be made of a corrosion-resistant and wear-resistant material, such as stainless steel or ceramic. The internal structure of the ink nozzle 53 can be designed into different shapes, for example, it can be designed to have a structure with multiple channels to improve the flow efficiency of the ink. In addition, the ink nozzle 53 can be surface treated, for example, it can be plated to improve its corrosion resistance and wear resistance. The first mounting groove 31 can be designed into different shapes and sizes to accommodate ink nozzles 53 of different specifications. The number and size of the through holes can be adjusted according to the size of the ink nozzle 53 and the ink flow rate. The materials and sizes of the ink return tube 51 and the ink inlet tube 52 can also be selected according to actual needs. For example, soft and pressure-resistant silicone tubes can be used as the ink return tube 51 and the ink inlet tube 52 to ensure smooth flow of ink.

[0040] By adding an ink nozzle 53 and its associated piping system to the printhead assembly, this application effectively solves the connectivity issue between the ink nozzle 53 and the printhead unit 2, ensuring that ink can smoothly enter and return to the printhead unit 2. This improves the efficiency and stability of the printhead assembly and avoids inkjet failures caused by poor ink connection. Compared to the existing technologies that may have complex ink connections and low reliability, the solution provided by this application simplifies the ink connection structure, improves the reliability of the ink connection, and facilitates maintenance.

[0041] The present application also proposes that the fixing frame 3 is made of graphite material.

[0042] The fixing frame 3 is made of graphite, a key feature in resolving the material selection issue for the printhead assembly. Graphite's excellent high-temperature resistance, electrical conductivity, and mechanical strength make it a suitable material for the printhead assembly's fixing frame 3. The use of graphite ensures the printhead assembly maintains stability in high-temperature operating environments, and its electrical conductivity helps prevent static electricity buildup, thereby improving the reliability and service life of the printhead assembly.

[0043] The graphite material can be selected in several ways: Graphite can be produced through a high-temperature sintering process to ensure its stability in high-temperature environments. Furthermore, the graphite material can undergo surface treatment to improve its wear resistance and corrosion resistance, thereby extending the service life of the fixed frame 3. Specifically, the graphite material can also be enhanced by adding conductive fillers to improve its conductivity, thereby better preventing static electricity accumulation.

[0044] Therefore, the use of graphite in the fixing frame 3 significantly improves the stability and reliability of the printhead assembly in wide-format printers. Compared with existing technologies, this technical solution, by selecting graphite with excellent performance, solves the stability problem of the printhead assembly in high-temperature environments. The conductivity of graphite effectively prevents static electricity accumulation, thereby extending the service life of the printhead assembly.

[0045] The present application also proposes that the second mounting groove 32 and the third mounting groove 33 are structures that penetrate from top to bottom, and the second mounting groove 32 and the third mounting groove 33 are respectively installed with the first thermal cycle box 61 and the second thermal cycle box 62, and the first thermal cycle box 61 and the second thermal cycle box 62 are respectively attached to the upper surfaces of the two nozzle units 2.

[0046] These technical features, working together, play an important role in solving thermal cycle management issues. The vertical penetration structure of the second mounting slot 32 and the third mounting slot 33 allows the thermal cycle box to fit tightly against the upper surface of the printhead unit 2, thereby improving heat conduction efficiency. The installation of the first thermal cycle box 61 and the second thermal cycle box 62 ensures that each printhead unit 2 can obtain effective temperature control and stability. Through this design, the printhead assembly can achieve more stable operating performance in wide-format printers, avoiding print quality issues and printhead damage caused by uneven temperature.

[0047] Furthermore, the second mounting groove 32 and the third mounting groove 33 are structures that penetrate from top to bottom, so that the thermal cycle box can be directly attached to the upper surface of the nozzle unit 2 to form a tight heat conduction path. The first thermal cycle box 61 and the second thermal cycle box 62 are respectively attached to the upper surfaces of the two nozzle units 2, and the nozzle units 2 are uniformly heated or cooled by the flow of the thermal cycle medium. Specifically, the thermal cycle box can be made of a material with excellent thermal conductivity, such as aluminum alloy or copper, and a flow channel is provided inside to achieve thermal circulation by pumping coolant or heating liquid. As a preferred embodiment, the flow channel design of the thermal cycle box should be as evenly distributed as possible to ensure that heat can be evenly transferred to every part of the nozzle unit 2.

[0048] Through the above design, the nozzle assembly of this application has significant advantages in thermal cycle management. Compared with the existing technology, this application achieves more efficient heat conduction and temperature control through the installation slot structure that runs through the top and bottom and the design of a tightly fitting thermal cycle box. As a result, the nozzle unit 2 can maintain a stable operating temperature in a wide-format printer, avoiding print quality issues and nozzle damage caused by uneven temperature, and improving the overall performance and service life of the printer.

[0049] Furthermore, the present application also proposes that the first heat circulation box 61 is provided with a first heat circulation nozzle 611 and a second heat circulation nozzle 612, and the second heat circulation box 62 is provided with a third heat circulation nozzle 621 and a fourth heat circulation nozzle 622. The nozzle assembly also includes a first heat circulation water pipe 81, a second heat circulation water pipe 82 and a third heat circulation water pipe 83. The lower end of the first heat circulation water pipe 81 is connected to the first heat circulation nozzle 611, the lower end of the second heat circulation water pipe 82 is connected to the third heat circulation nozzle 621, and the two ends of the third heat circulation water pipe 83 are respectively connected to the second heat circulation nozzle 612 and the fourth heat circulation nozzle 622. The cooling water enters the first heat circulation box 61 from the first heat circulation water pipe 81, enters the second heat circulation box 62 through the third heat circulation water pipe 83, and flows out from the second heat circulation water pipe 82. The upper ends of the first heat circulation water pipe 81 and the second heat circulation water pipe 82 extend from the upper end of the shell 1.

[0050] The first and second thermal circulation housings 61 and 62 are each equipped with multiple thermal circulation nozzles, connected by first, second, and third thermal circulation water pipes 83. Cooling water flows sequentially through these pipes and the thermal circulation housings, thereby cooling the printheads. The upper ends of the first and second thermal circulation water pipes 81 and 82 extend from the upper end of the housing 1, allowing cooling water to flow smoothly into and out of the system. The interaction of these technical features solves the cooling problem of inkjet printer printheads when used in wide-format printers, ensuring that the printheads maintain a suitable temperature during operation and preventing overheating that may affect printing quality.

[0051] On this basis, the first and second thermal circulation boxes 61, 62 can be made of materials with good thermal conductivity, such as aluminum alloy or copper, to improve cooling efficiency. The first, second, and third thermal circulation water pipes 81, 82, 83 can be made of high-temperature and corrosion-resistant materials, such as silicone or Teflon tubing, to ensure long-term stable operation of the system. The cooling water can be circulated through an external cooling device to maintain a low temperature, thereby improving the cooling effect.

[0052] The present invention effectively cools the inkjet printer nozzle by providing a first thermal circulation box 61 and a second thermal circulation box 62, which are connected by first, second, and third thermal circulation water pipes 83. Compared with the prior art, the present invention's cooling system has a simpler structure and better cooling effect, effectively preventing nozzle overheating and improving the printing quality and reliability of the inkjet printer.

[0053] Furthermore, the present application also proposes that the housing 1 includes a first housing 11 and a second housing 12 that are spliced ​​together, and the first housing 11 and the second housing 12 are fixedly connected by a plurality of first fixing screws 13 .

[0054] The technical features of this application are that the housing is composed of a first housing 11 and a second housing 12, which are spliced ​​together and secured by a plurality of first fixing screws 13. These technical features play an important role in solving the stability and splicing issues of the housing structure. Specifically, the splicing design of the first housing 11 and the second housing 12 allows the nozzle assembly to adapt to the needs of a wide format, while the fixing method of the plurality of first fixing screws 13 ensures the stability and firmness of the overall structure.

[0055] Through the above solution, the present application solves the shell splicing and stability problems of the nozzle assembly in the application of wide-format printers, ensuring the reliability and performance of the nozzle assembly in the wide-format printer.

[0056] Furthermore, the first housing 11 and the second housing 12 can be joined in a variety of ways, such as by using pre-set grooves and protrusions, or by using a snap-fit ​​mechanism. The first fixing screws 13 can be made of a high-strength alloy to enhance the connection's firmness and durability. The number and placement of the screws can be adjusted based on actual needs to achieve optimal securing.

[0057] The present application utilizes a spliced ​​design of the first housing 11 and the second housing 12, secured by a plurality of first fixing screws 13, to ensure the structural stability and robustness of the printhead assembly in wide-format printer applications. Compared to existing technologies, the present application's design effectively resolves the splicing and stability issues of the printhead assembly housings, improving the reliability and performance of the printhead assembly in wide-format printers.

[0058] Furthermore, the present application also proposes that the upper end of the shell has a first opening and a second opening, and the first opening and the second opening are respectively installed with seals 7, which are the first seal and the second seal respectively. The first seal 7 has two through holes, for the first heat circulation water pipe 81 and the ink return pipe 51 to extend out respectively, and the second seal has two through holes, for the second heat circulation water pipe 82 and the ink inlet pipe 52 to extend out respectively.

[0059] An opening is provided at the upper end of the shell, and a seal 7 is installed on the opening. A through hole is provided on the seal so that the heat circulation water pipe and the ink tube can extend out of the shell through the seal, thereby solving the sealing problem of the heat circulation water pipe and the ink tube.

[0060] The upper end of the housing has a first opening and a second opening, each of which is fitted with a seal. The first seal has two through-holes for the first heat circulation water pipe 81 and the ink return pipe 51 to extend, respectively. The second seal has two through-holes for the second heat circulation water pipe 82 and the ink inlet pipe 52 to extend, respectively. The seal can be made of a material with good elasticity and sealing properties, such as rubber or silicone. The size and position of the through-holes are designed to suit the size and position of the heat circulation water pipe and the ink pipe to ensure a good seal. The seal can be secured to the opening by bonding, snapping, or other means to ensure a tight connection between the seal and the housing.

[0061] This application effectively solves the sealing problem of the heat circulation water pipe and ink tube by providing a seal at the upper end of the housing and opening a through hole in the seal, allowing the seal to extend out of the housing. Compared with the existing technology, the sealing structure of this application is simple and easy to implement, effectively preventing water and ink leakage, and improving the reliability and service life of the printhead assembly.

[0062] Furthermore, the present application also proposes that a third opening is provided at the upper end of the shell, and a data connector 9 is installed on the third opening. The data connector 9 is sealed and installed on the third opening through a third sealing ring 93. The part of the data connector 9 located outside the shell is provided with an external data connector 91, and the part of the data connector 9 located inside the shell is provided with an internal data connector 92. The internal data connector 92 is connected to the signal of the nozzle unit 2.

[0063] This technical solution solves the data connection problem by opening a third opening at the upper end of the shell and installing a data connector 9. The data connector 9 is sealed and installed with a third sealing ring 93 to ensure sealing and prevent the external environment from affecting the internal circuit. The data connector 9 is divided into an external data connector 91 and an internal data connector 92. The external data connector 91 is connected to the external circuit, and the internal data connector 92 is connected to the nozzle unit 2 to realize data transmission. This solution is combined with the sealing design of the first and second openings to achieve the sealing of all openings in the shell of the nozzle assembly, ensuring the stability of the internal environment of the nozzle assembly, thereby improving the reliability and stability of the printer. By rationally arranging the openings on the shell and sealing them with sealing rings, the sealing and data connection problems of the upper opening of the shell of the nozzle assembly of a wide-format inkjet printer are effectively solved, ensuring the reliability of data transmission and the sealing of the nozzle assembly.

[0064] The external data connector 91 of the data connector 9 is used to connect to an external circuit, and the internal data connector 92 is used to connect to the nozzle unit 2. The third sealing ring 93 can be made of a high-temperature and corrosion-resistant silicone material to ensure a good seal during long-term use. The data connector 9 can be installed using a threaded connection or a snap-on connection to ensure its firmness and reliability. As a preferred embodiment, the shape of the data connector 9 can be designed as a standardized interface to facilitate connection with different types of external circuits.

[0065] By providing a third opening at the upper end of the shell and installing a data connector 9, the data connection problem of the wide-format inkjet printer nozzle assembly is further solved. Thus, combined with the use of the third sealing ring 93, the sealing of the data connector 9 is ensured, preventing the external environment from affecting the internal circuit, and improving the reliability of data transmission. At the same time, the external data connector 91 and the internal data connector 92 of the data connector 9 realize the signal connection between the external circuit and the nozzle unit 2, ensuring the normal operation of the nozzle assembly. Compared with the existing technology, this solution not only effectively solves the sealing problem of the upper end opening of the nozzle assembly shell, but also improves the reliability of data transmission, thereby improving the overall performance and stability of the wide-format inkjet printer.

[0066] The nozzle unit 2 of the present application is sealed and installed with the first mounting groove 31 and the second mounting groove 32 respectively through the second sealing ring 64, and the first thermal cycle box body 61 and the second thermal cycle box body 62 are sealed and installed with the first mounting groove 31 and the second mounting groove 32 respectively through the first sealing ring 63.

[0067] This application addresses potential leakage issues that may arise during operation of the printhead unit 2 and the thermal cycle housing by employing a second sealing ring 64 and a first sealing ring 63 between the printhead unit 2 and the mounting slot, respectively, and between the thermal cycle housing and the mounting slot. This sealed installation ensures that the printhead unit 2 does not leak ink during operation and that cooling water does not leak during the thermal cycle. These sealing measures effectively improve the stability and reliability of the printhead assembly, preventing degradation of print quality or equipment damage due to leakage.

[0068] The material of the second sealing ring 64 and the first sealing ring 63 can be selected according to actual needs, such as rubber, silicone and other materials with good sealing properties. The shape and size of the sealing ring also need to be designed according to the structure of the nozzle unit 2 and the thermal cycle box to ensure that it can effectively seal the installation groove. As a preferred embodiment, an O-ring can be used as a sealing ring, which has the advantages of good sealing effect and easy installation. In addition, other types of sealing rings, such as lip sealing rings, gaskets, etc., can also be used to meet different sealing requirements. The installation of the sealing ring can be carried out in a variety of ways such as snap-on, press-in or adhesive.

[0069] This application adopts a double sealing ring structure to form a double seal between the nozzle unit 2 and the thermal cycle box and the installation groove, effectively preventing the occurrence of leakage and improving the reliability and stability of the nozzle assembly. Compared with the existing technology, the present application scheme has stronger sealing performance and can better adapt to various working environments, thereby improving the overall performance and reliability of the inkjet printer. The present application scheme solves the problem of sealing and installing the nozzle unit 2 and the thermal cycle box, improves the reliability and service life of the nozzle assembly, and thus improves the printing quality and efficiency of the inkjet printer.

[0070] The above-described embodiments are merely preferred embodiments for the purpose of fully illustrating the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are within the scope of protection of the present invention. The scope of protection of the present invention shall be subject to the claims.

Claims

1. A nozzle assembly suitable for a wide-format inkjet printer, characterized in that: The nozzle assembly includes a shell, at least two nozzle units arranged at the bottom of the shell, and a fixing frame arranged in the shell. The fixing frame includes at least two mounting grooves for mounting the nozzle units.

2. The nozzle assembly according to claim 1, wherein: The nozzle assembly includes two nozzle units, and the fixing frame includes two mounting slots for mounting the nozzle units, namely a second mounting slot and a third mounting slot. The nozzle unit is fixed to the fixing frame by a plurality of second fixing screws.

3. The nozzle assembly according to claim 2, wherein: An ink path nozzle is also provided in the shell, and a first mounting groove is provided on the upper surface of the fixed frame, and the first mounting groove is located between the second mounting groove and the third mounting groove. A plurality of through holes are provided at the bottom of the first mounting groove, and the ink path nozzle is installed in the first mounting groove. The lower end surface of the ink path nozzle is connected with the ink inlet and the ink outlet of the nozzle unit, and the upper end of the ink path nozzle is respectively provided with an ink return nozzle and an ink inlet nozzle, and the ink return nozzle is connected with an ink return tube, and the ink inlet nozzle is connected with an ink inlet tube, and the upper ends of the ink return tube and the ink inlet tube extend from the upper end of the shell, and the ink of the nozzle assembly enters the nozzle unit from the ink inlet tube and is returned from the ink return tube.

4. The nozzle assembly according to claim 1, wherein: The fixing frame is made of graphite material.

5. The nozzle assembly according to claim 3, wherein: The second mounting slot and the third mounting slot are vertically penetrated, and the first thermal cycle box and the second thermal cycle box are installed in the second mounting slot and the third mounting slot respectively. The first thermal cycle box and the second thermal cycle box are respectively attached to the upper surfaces of the two nozzle units.

6. The nozzle assembly according to claim 5, characterized in that: The first thermal circulation box is provided with a first thermal circulation nozzle and a second thermal circulation nozzle, and the second thermal circulation box is provided with a third thermal circulation nozzle and a fourth thermal circulation nozzle. The nozzle assembly also includes a first thermal circulation water pipe, a second thermal circulation water pipe and a third thermal circulation water pipe. The lower end of the first thermal circulation water pipe is connected to the first thermal circulation nozzle, the lower end of the second thermal circulation water pipe is connected to the third thermal circulation nozzle, and the two ends of the third thermal circulation water pipe are respectively connected to the second thermal circulation nozzle and the fourth thermal circulation nozzle. Cooling water enters the first thermal circulation box from the first thermal circulation water pipe, enters the second thermal circulation box through the third thermal circulation water pipe, and flows out from the second thermal circulation water pipe. The upper ends of the first thermal circulation water pipe and the second thermal circulation water pipe extend from the upper end of the shell.

7. The nozzle assembly according to claim 1, wherein: The housing comprises a first housing and a second housing which are spliced ​​together. The first housing and the second housing are fixedly connected by a plurality of first fixing screws.

8. The nozzle assembly according to claim 6, wherein: The upper end of the shell has a first opening and a second opening, and the first opening and the second opening are respectively installed with sealing members, namely the first seal and the second seal. The first seal has two through holes, for the first hot circulation water pipe and the ink return pipe to extend out respectively, and the second seal has two through holes, for the second hot circulation water pipe and the ink inlet pipe to extend out respectively.

9. The nozzle assembly according to claim 8, wherein: A third opening is also provided at the upper end of the shell, and a data connector is installed on the third opening. The data connector is sealed on the third opening by a third sealing ring. The part of the data connector located outside the shell is provided with an external data connector, and the part of the data connector located inside the shell is provided with an internal data connector. The internal data connector is connected to the signal of the nozzle unit.

10. The nozzle assembly according to claim 9, wherein: The nozzle unit is sealed and installed with the first mounting groove and the second mounting groove respectively through the second sealing ring, and the first thermal cycle box and the second thermal cycle box are sealed and installed with the first mounting groove and the second mounting groove respectively through the first sealing ring.

Images