A high-resolution nozzle module and a printing device adapted to print on large-sized substrates

Abstract

The present application relates to a high-resolution nozzle module and a printing device adapted to print on large-size substrates, including: a base, wherein a plurality of mounting grooves are formed in the bottom plate of the base; a plurality of nozzle modules, the mounting plates of the plurality of nozzle modules are all mounted at the mounting grooves on the top surface of the bottom plate, and the plurality of nozzle modules are arranged side by side perpendicular to the length direction of the nozzle holes arranged in the nozzle module; a plurality of fixing components, the plurality of fixing components are respectively located at the corners of the bottom surface of the mounting plate, the fixing component includes a threaded sleeve and a fixing bolt, the threaded sleeve vertically penetrates through the bottom plate and is threadedly connected to the bottom plate, the top end of the threaded sleeve abuts against the mounting plate, the fixing bolt penetrates through the threaded sleeve, the fixing bolt is threadedly connected to the mounting plate, and the head of the fixing bolt abuts against the bottom end of the threaded sleeve. The present application improves the height consistency of the printing surfaces after splicing of the plurality of nozzle modules, ensures that the printing heights are the same when the plurality of nozzle modules work, and improves the precision and quality of the printing process.

Description

Technical Field

[0001] The present application relates to the technical field of display screen manufacturing equipment, and in particular to a high-resolution nozzle module and printing equipment suitable for printing on large-size substrates. Background Art

[0002] Inkjet printing technology has broad application prospects in multiple manufacturing fields such as information, energy, medical care, and national defense. With the rapid development of technology, it has also been increasingly used in emerging fields such as OLED, RFID, thin-film solar cells, wearable flexible devices, PCBs, smart skins and other flexible devices.

[0003] The core component of the inkjet printing equipment is the nozzle module. Driven by the drive shaft, the nozzle module realizes full-size printing of the printed substrate and high-density printing through multiple reciprocating motions of the drive shaft.

[0004] Generally, multiple nozzle modules 2 are spliced together in the longitudinal direction of the nozzle holes of the nozzle module. Figure 1 , in order to increase the printing length; it is also possible to form an interpolation fit between multiple nozzle holes of different nozzle modules 2, which can be referred to Figure 2 , to improve the print resolution. You can also increase the print length and improve the print resolution at the same time, refer to Figure 3 The number of reciprocating motions of the nozzle module 2 can be reduced, and even the nozzle module 2 can complete full-size printing by moving once in the printing direction, thereby improving the printing processing efficiency and increasing the single printing density.

[0005] After multiple nozzle modules are spliced together, it is necessary not only to determine the horizontal position of the nozzle modules and the arrangement direction of the nozzle holes, but also to ensure the horizontality and height consistency of the ejection surfaces of the multiple nozzle modules to ensure printing accuracy.

[0006] In the related art, when multiple nozzle modules are spliced and fixed on a mounting plate, the high consistency of the multiple nozzle modules is ensured by ensuring the flatness of the mounting plate itself and then fixing the nozzle modules to the mounting plate with higher flatness using bolts.

[0007] However, when installing the nozzle module, there are installation accuracy errors, making it difficult to ensure the height consistency of each fixed position of the nozzle module. Therefore, it is difficult to ensure the horizontality of the nozzle module after it is installed on the mounting plate, and it is also difficult to ensure the height consistency of multiple nozzle modules. In addition, after multiple nozzle modules are integrated on a mounting plate, the weight of the nozzle module will cause slight deformation of the mounting plate. The deformation of the mounting plate will also cause height differences at different positions of the mounting plate, making it difficult to ensure the installation height consistency of multiple nozzle modules. Therefore, when the multiple nozzle modules are spliced together for printing, the printing heights of different nozzle modules are inconsistent, affecting the printing accuracy and having an adverse effect on the printing quality. Summary of the Invention

[0008] An embodiment of the present application provides a high - resolution nozzle module and a printing device adapted to print on large - size substrates, so as to solve the technical problems in the related art that it is difficult to ensure the height consistency of multiple nozzle modules, it is difficult to ensure the printing height of multiple nozzle modules, which affects the printing accuracy and has an adverse impact on the printing quality.

[0009] In a first aspect, a high - resolution nozzle module adapted to print on large - size substrates is provided, which includes:

[0010] A base, wherein a plurality of mounting grooves are formed in the bottom plate of the base, and the mounting grooves penetrate through the bottom plate;

[0011] A plurality of nozzle modules, the mounting plates of the plurality of nozzle modules are all mounted at the mounting grooves on the top surface of the bottom plate, and the bottom of the nozzle module is placed inside the mounting groove or penetrates to the lower part of the mounting groove. The plurality of nozzle modules are arranged side by side in a direction perpendicular to the length direction of the nozzle holes arranged in the nozzle module;

[0012] A plurality of fixing components, the plurality of fixing components are respectively located at the corners of the bottom surface of the mounting plate. The fixing component includes a threaded sleeve and a fixing bolt. The threaded sleeve vertically penetrates through the bottom plate and is threadedly connected to the bottom plate. The top end of the threaded sleeve abuts against the mounting plate. The fixing bolt penetrates through the threaded sleeve, and the fixing bolt is threadedly connected to the mounting plate, and the head of the fixing bolt abuts against the bottom end of the threaded sleeve.

[0013] In some embodiments, the fixing component further includes a locking nut. The locking nut is arranged near the bottom of the threaded sleeve. The locking nut is sleeved on the threaded sleeve and is threadedly connected to the threaded sleeve. The top end surface of the locking nut abuts against the bottom plate.

[0014] In some embodiments, ear plates are provided at the corners of the mounting plate. The threaded sleeve abuts against the bottom surface of the ear plate, and the fixing bolt is threadedly connected to the ear plate.

[0015] In some embodiments, a plurality of receiving holes are formed in the bottom surface of the bottom plate. The threaded sleeve and the fixing bolt both penetrate through the bottom of the receiving hole. The locking nut abuts against the bottom of the receiving hole, and the bottoms of the threaded sleeve and the fixing bolt are both located inside the receiving hole.

[0016] In some embodiments, the fixing component further includes a protective sleeve. The protective sleeve corresponds to the receiving hole. The protective sleeve is fixed to the bottom surface of the bottom plate, and the protective sleeve is communicated with the receiving hole.

[0017] In some embodiments, the high-resolution nozzle module adapted for printing on large-size substrates further includes a plurality of sets of deflection correction components, which act on a plurality of the nozzle modules respectively. The deflection correction components are installed on the base plate to adjust the length direction of the nozzle hole arrangement of the nozzle module.

[0018] In some embodiments, the correction component includes:

[0019] A rotating shaft, the rotating shaft is arranged perpendicular to the base plate, the nozzle module is rotatably connected to the base plate via the rotating shaft, the two opposite side surfaces of the nozzle module are respectively a first adjustment surface and a second adjustment surface, and the first adjustment surface and the second adjustment surface are spaced apart in the length direction of the nozzle hole arrangement of the nozzle module, the rotating shaft is arranged close to the first adjustment surface, and the rotating shaft is arranged close to the first adjustment surface in the middle of the arrangement direction of the plurality of nozzle modules;

[0020] a deflection-correcting ejection member, the deflection-correcting ejection member being mounted on the base, the top end of the deflection-correcting ejection member moving in the length direction of the nozzle holes of the nozzle module, the top end of the deflection-correcting ejection member being adapted to push the second adjustment surface, the deflection-correcting ejection member and the rotating shaft being staggered in the arrangement direction of the plurality of nozzle modules;

[0021] A gap is left between the circumferential outer side surface of the screw portion of the fixing bolt and the circumferential inner side surface of the threaded sleeve, so as to leave space for the fixing bolt to move along with the nozzle module.

[0022] In some embodiments, the deflection-correcting ejection member includes a micrometer head.

[0023] In some embodiments, the deviation-correcting assembly further includes a protective shell, the protective shell is connected to the nozzle module, and the pushing end of the deviation-correcting pushing member is suitable for pushing the protective shell.

[0024] The beneficial effects of the technical solution provided by this application include:

[0025] The embodiment of the present application provides a high-resolution nozzle module adapted to large-size substrate printing. The nozzle module is formed by splicing multiple nozzle modules, and the nozzles of the multiple nozzle modules form an interpolation fit, and the arrangement length of the nozzles is lengthened to meet the high-resolution printing requirements of large-size substrates. The nozzle module is installed on the base through multiple fixing components, and the fixing components are used to adjust the levelness of the nozzle surface of the nozzle module, and ensure that the heights of the nozzle surfaces of the multiple nozzle modules are the same. Specifically, a threaded sleeve is used to push up the mounting plate of the nozzle module from below and support the mounting plate, and then a fixing bolt is used to pull down the mounting plate to ensure that the mounting plate is in contact with the threaded sleeve tightly, so as to adjust the height of the corners of the mounting plate. The heights of multiple corners of the mounting plate are adjusted respectively by multiple fixing components, and the nozzle surface of the nozzle module can be adjusted to be horizontal. Then, the heights of multiple nozzle modules are adjusted adaptively respectively to ensure that the heights of the nozzle surfaces of the multiple nozzle modules are the same. Since the heights of multiple positions of each nozzle module are adjusted separately, and the height of each nozzle module can also be adjusted separately, the installation height of the nozzle module is not easily affected by the installation accuracy during installation, and the deformation of the base will not affect the height consistency of the nozzle surfaces of the multiple nozzle modules, improving the height consistency of the nozzle surfaces after splicing of the multiple nozzle modules, ensuring that the printing heights are the same when the multiple nozzle modules work, and improving the accuracy and quality of the printing process.

[0026] In a second aspect, a printing device is provided, including the high-resolution nozzle module adapted to large-size substrate printing as described above.

[0027] Another embodiment of the present application provides a printing device. Since the printing device includes the high-resolution nozzle module adapted to large-size substrate printing as described above, the beneficial effects of the printing device are the same as those of the high-resolution nozzle module adapted to large-size substrate printing as described above, and will not be elaborated here. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those of ordinary skill in the art can obtain other drawings according to these drawings without creative efforts.

[0029] Figure 1 Schematic diagram of splicing for increasing the printing length of multiple nozzle modules;

[0030] Figure 2 Schematic diagram of interpolation splicing of the nozzles of multiple nozzle modules;

[0031] Figure 3 Schematic diagram of splicing for both increasing the printing length and interpolating the nozzles of multiple nozzle modules;

[0032] Figure 4 Schematic diagram of a high - resolution nozzle module adapted for large - size substrate printing provided by an embodiment of the present application;

[0033] Figure 5 Schematic diagram of another perspective of a high - resolution nozzle module adapted for large - size substrate printing provided by an embodiment of the present application;

[0034] Figure 6 Schematic diagram of the connection of a fixing component to a bottom plate and a mounting plate provided by an embodiment of the present application;

[0035] Figure 7 Schematic cross - sectional view of a fixing component provided by an embodiment of the present application;

[0036] Figure 8 Partial exploded view of a threaded sleeve, a fixing bolt and a locking nut provided by an embodiment of the present application;

[0037] Figure 9 Partial top view of a high - resolution nozzle module adapted for large - size substrate printing provided by an embodiment of the present application;

[0038] Figure 10 Schematic diagram of a deviation - correcting push - top member, a nozzle module and a bottom plate provided by an embodiment of the present application.

[0039] In the figure: 1. Base; 11. Bottom plate; 11a. Installation groove; 11b. Accommodating hole; 2. Nozzle module; 21. Mounting plate; 22. Ear plate; 2a. First adjustment surface; 2b. Second adjustment surface; 3. Fixing component; 31. Threaded sleeve; 32. Fixing bolt; 33. Locking nut; 34. Protective sleeve; 4. Deviation - correcting component; 41. Rotating shaft; 42. Deviation - correcting push - top member; 43. Protective shell. Detailed implementation manners

[0040] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0041] The embodiment of the present application provides a high-resolution nozzle module and a printing device adapted to print on a large-size substrate. The high-resolution nozzle module adapted to print on a large-size substrate uses a plurality of fixing components to separately adjust the heights of multiple parts of the nozzle module to ensure the levelness of the printing surface of the nozzle module, and by independently adjusting the heights of multiple nozzle modules, the printing surface heights of multiple nozzle modules are ensured to be consistent. The height consistency of the printing surface after splicing of multiple nozzle modules is improved, the printing heights are ensured to be the same when multiple nozzle modules work, and the printing accuracy and printing quality of the printing process are improved. The present application solves the technical problems in the related art that it is difficult to ensure the height consistency of multiple nozzle modules, it is difficult to ensure the printing heights of multiple nozzle modules, which affects the printing accuracy and has an adverse impact on the printing quality.

[0042] Referring to Figure 4 and Figure 5 , a high-resolution nozzle module adapted to print on a large-size substrate includes a base 1, a plurality of nozzle modules 2, and a plurality of fixing components 3. Each nozzle module 2 is installed on the base 1 through a plurality of fixing components 3, and the plurality of nozzle modules 2 are arranged side by side along the length direction perpendicular to the arrangement of the spray holes on the nozzle module 2. The plurality of fixing components 3 are used to fix the nozzle module 2 and adjust the height of the nozzle module 2 so that the printing surface of the nozzle module 2 is horizontal, and the printing surface heights of the plurality of nozzle modules 2 are the same, thereby ensuring the printing accuracy.

[0043] Referring to Figures 1-3 , wherein, the plurality of spray holes of the plurality of nozzle modules 2 form an interpolation fit, and / or, the plurality of spray holes of the plurality of nozzle modules 2 are evenly spaced in the same direction to increase the length of the spray hole arrangement and increase the unit printing length. Thus, high-resolution printing of a large-size substrate can be achieved, and the printing efficiency is high.

[0044] Referring to Figure 4 and Figure 5 , specifically, a plurality of through mounting grooves 11a are formed on the bottom plate 11 of the base 1, and the plurality of nozzle modules 2 are respectively installed at the plurality of mounting grooves 11a, and the bottom of the nozzle module 2 is placed in the mounting groove 11a or penetrates below the mounting groove 11a. In this embodiment, the bottom of the nozzle module 2 penetrates below the mounting groove 11a, that is, the printing surface of the nozzle module 2 is located below the bottom plate 11.

[0045] With this setting, the printing surface of the nozzle module 2 is lower than the bottom plate 11. During printing, the bottom plate 11 does not interfere with the descent of the nozzle module 2, and it is convenient to clean and maintain the printing surface of the nozzle module 2.

[0046] Referring to Figure 5 and Figure 6, the nozzle module 2 includes a mounting plate 21. The mounting plate 21 of the nozzle module 2 is connected to the bottom plate 11 through a plurality of fixing components 3. The plurality of fixing components 3 are respectively located at the corners of the bottom surface of the mounting plate 21. In this embodiment, the mounting plate 21 is in the shape of a square plate, and each nozzle module 2 corresponds to four fixing components 3. The four fixing components 3 respectively fix the four corners of the mounting plate 21 on the bottom plate 11 and adjust the height of the corners of the mounting plate 21 relative to the bottom plate 11.

[0047] With such a setting, the height of multiple corners of the mounting plate 21 of the nozzle module 2 is adjusted respectively through the plurality of fixing components 3, so as to conveniently adjust the spraying surface of the nozzle module 2 to be horizontal, and the installation position of the nozzle module 2 is not affected by the levelness of the bottom plate 11.

[0048] Refer to Figures 6-8 , specifically, the fixing component 3 includes a threaded sleeve 31 and a fixing bolt 32. The threaded sleeve 31 vertically penetrates the bottom plate 11 and is threadedly connected to the bottom plate 11. The top end of the threaded sleeve 31 abuts against the mounting plate 21 to support the mounting plate 21. The fixing bolt 32 penetrates the threaded sleeve 31, and the fixing bolt 32 is threadedly connected to the mounting plate 21. The head of the fixing bolt 32 abuts against the bottom end surface of the threaded sleeve 31.

[0049] With such a setting, the mounting plate 21 is supported by a plurality of threaded sleeves 31. The height of different corners of the mounting plate 21 can be adjusted by adjusting the height of the top end surface of the threaded sleeve 31, so that the spraying surface of the nozzle module 2 can be adjusted to a horizontal state. Since the mounting plate 21 is supported by the threaded sleeves 31, the deformation of the bottom plate 11 due to the load will not affect the installation of the nozzle module 2. In addition, by tightening the fixing bolt 32, the head of the fixing bolt 32 abuts against the bottom end surface of the threaded sleeve 31. In this way, the mounting plate 21 can be closely attached to the threaded sleeve 31. By turning the fixing bolt 32, the installation accuracy of the contact between the mounting plate 21 and the plurality of threaded sleeves 31 can be further ensured, and it is ensured that the height of the spraying surface of the nozzle module 2 is horizontal by adjusting the height of each part of the mounting plate 21.

[0050] In addition, the height of each nozzle module 2 is adjusted through a plurality of threaded sleeves 31 and a plurality of fixing bolts 32, which is convenient to adjust the spraying surfaces of the plurality of nozzle modules 2 to the same height without being affected by the deformation of the bottom plate 11.

[0051] Refer to Figures 6-8 , further, the fixing component 3 further includes a locking nut 33. The locking nut 33 is arranged near the bottom of the threaded sleeve 31. The locking nut 33 is sleeved on the threaded sleeve 31 and is threadedly connected to the threaded sleeve 31. The top end surface of the locking nut 33 abuts against the bottom plate 11.

[0052] With this setting, after adjusting the threaded sleeve 31 and the fixing bolt 32, by tightening the locking nut 33, the locking nut 33 is pressed against the bottom plate 11. At this time, the threaded sleeve 31 is fixed to the bottom plate 11, and the threaded sleeve 31 is not easily rotated by an external force, maintaining the position of the threaded sleeve 31 relative to the bottom plate 11. During the printing process, when the nozzle module moves, the threaded sleeve 31 will not become loose, ensuring the flatness of the spraying surface of the nozzle module 2 and the height consistency of the spraying surfaces of multiple nozzle modules 2.

[0053] It should be noted that after multiple nozzle modules 2 are installed, due to the installation accuracy differences and the flatness accuracy of the bottom plate 11 of the base 1, the height differences of the spraying surfaces of multiple nozzle modules 2 and the inclination angles of the spraying surfaces of a single nozzle module 2 are relatively small, usually at the micron level. By combining the adjustment of the threaded sleeve 31 and the fixing bolt 32, the flatness of the spraying surface of the nozzle module 2 and the height differences of the spraying surfaces of multiple nozzle modules 2 can be corrected.

[0054] Refer to Figure 6 and Figure 7 Furthermore, ear plates 22 are provided at the corners of the mounting plate 21. The threaded sleeve 31 abuts against the bottom surface of the ear plate 22, and the fixing bolt 32 is threadedly connected to the ear plate 22.

[0055] With this setting, both the threaded sleeve 31 and the fixing bolt 32 apply forces to the ear plate 22. Therefore, the main body part of the mounting plate 21 is not easily deformed by force, maintaining the normal state of the nozzle module 2. The nozzle module 2 is not easily deformed, ensuring that the relative positions and height consistency of the nozzles in the nozzle module 2 remain unchanged.

[0056] Refer to Figure 6 and Figure 7 Optionally, a plurality of receiving holes 11b are formed in the bottom surface of the bottom plate 11. The threaded sleeve 31 and the fixing bolt 32 both pass through the bottom of the receiving hole 11b. The locking nut 33 abuts against the bottom of the receiving hole 11b. The bottoms of the threaded sleeve 31 and the fixing bolt 32 are both located inside the receiving hole 11b.

[0057] With this setting, the provision of the receiving holes 11b enables the threaded sleeve 31 and the fixing bolt 32 to be hidden. The bottoms of the threaded sleeve 31 and the fixing bolt 32 are higher than the bottom surface of the bottom plate 11. The bottom plate 11 protects the threaded sleeve 31 and the fixing bolt 32 from being collided and loosened, ensuring that the height position of the nozzle module 2 remains unchanged.

[0058] Refer to Figure 6 and Figure 7, optionally, the fixing component 3 further includes a protective sleeve 34, which is provided corresponding to a plurality of receiving holes 11b. The protective sleeve 34 is fixed to the bottom surface of the bottom plate 11 by screws, and the center line of the protective sleeve 34 is perpendicular to the bottom surface of the bottom plate 11. The protective sleeve 34 communicates with the receiving holes 11b. An external tool can pass through the protective sleeve 34 to operate the fixing bolt 32.

[0059] With such a setting, on the one hand, the protective sleeve 34 shields the receiving holes 11b, reducing the entry of external debris into the receiving holes 11b and preventing the contamination of the threaded sleeve 31, the fixing bolt 32, and the locking nut 33. On the other hand, the protective sleeve 34 allows an external tool to pass through to operate the fixing bolt 32. By individually adjusting the fixing bolt 32, the degree of tightness between the mounting plate 21 and the threaded sleeve 31 can be changed without removing the protective sleeve 34, so as to finely adjust the height of the mounting plate 21.

[0060] Referring to Figure 4 , Figure 6 and Figure 9 , wherein, the high-resolution nozzle module adapted for printing on large-sized substrates further includes a plurality of sets of alignment components 4, and the plurality of sets of alignment components 4 respectively act on a plurality of nozzle modules 2. The alignment components 4 are installed on the bottom plate 11 to adjust the length direction of the nozzle arrangement of the nozzle module 2.

[0061] Referring to Figure 9 and Figure 10 , the alignment component 4 includes a rotating shaft 41 and an alignment push member 42. The nozzle module 2 is rotatably connected to the bottom plate 11 through the rotating shaft 41, and the nozzle module .....

[0062] [[ID=2)) When the nozzle module 2 is installed on the base 1, due to installation precision errors, the length directions of the nozzle arrangements of the plurality of nozzle modules 2 are not exactly the same and there will be some deviations. The alignment component 4 finely adjusts the length direction of the nozzle arrangement of the nozzle module 2 to ensure that the length directions of the nozzle arrangements of the plurality of nozzle modules 2 are consistent.

[0063] Referring to Figure 9 and Figure 10 , specifically, the rotating shaft 41 is perpendicular to the bottom plate 11, and the nozzle module 2 is rotatably connected to the bottom plate 11 through the rotating shaft 41. The opposite two side surfaces of the nozzle module 2 are respectively a first adjustment surface 2a and a second adjustment surface 2b, and the first adjustment surface 2a and the second adjustment surface 2b are spaced apart in the length direction of the nozzle arrangement of the nozzle module 2. The rotating shaft 41 is disposed close to the first adjustment surface 2a, and the rotating shaft 41 is disposed in the middle of the plurality of nozzle modules 2 in the arrangement direction and close to the first adjustment surface 2a.

[0064] The deviation rectifying and pushing member 42 is installed on the base 1. The pushing end of the deviation rectifying and pushing member 42 moves along the length direction of the nozzle arrangement of the nozzle module 2, and the pushing end of the deviation rectifying and pushing member 42 is adapted to push the second adjusting surface 2b.

[0065] Referring to Figure 9 and Figure 10 , further, the deviation rectifying and pushing member 42 and the rotating shaft 41 are arranged staggeredly in the arrangement direction of the plurality of nozzle modules 2. When the deviation rectifying and pushing member 42 pushes the nozzle module 2, the thrust applied by the pushing end of the deviation rectifying and pushing member 42 to the nozzle module 2 does not pass through the center line of the rotating shaft 41, so as to ensure that the nozzle module 2 can be pushed to rotate around the rotating shaft 41.

[0066] Referring to Figure 9 and Figure 10 , in this embodiment, the ear plate 22 on the mounting plate 21 of the nozzle module 2 is located on the side surface of the mounting plate 21, and the deviation rectifying and pushing member 42 pushes the ear plate 22 to drive the nozzle module 2 to rotate around the rotating shaft 41.

[0067] Referring to Figure 7 and Figure 8 , in addition, to ensure the threaded connection between the fixing bolt 32 and the mounting plate 21, a gap is left between the outer circumferential surface of the screw part of the fixing bolt 32 and the inner circumferential surface of the threaded sleeve 31. When the fixing bolt 32 is connected to the mounting plate 21, the fixing bolt 32 can rotate along with the mounting plate 21, and the screw part of the fixing bolt 32 moves in the threaded sleeve 31.

[0068] With such a setting, before adjusting the length direction of the nozzle arrangement of the nozzle module 2, first connect the fixing bolt 32 to the mounting plate 21, and the threaded sleeve 31 is against the bottom of the mounting plate 21. At this time, both the fixing bolt 32 and the threaded sleeve 31 are in a pre-tightened state, that is, the mounting plate 21 can move relative to the threaded sleeve 31. And the pre-tightened state of the threaded sleeve 31 and the fixing bolt 32 increases the friction force between the mounting plate 21 and the threaded sleeve 31, making the damping of the movement of the mounting plate 21 greater. As the deviation rectifying and pushing member 42 pushes the nozzle module 2 to rotate, the influence of inertia on the nozzle module 2 is smaller, and the rotational movement of the nozzle module 2 is more precise and controllable, facilitating the accurate adjustment of the nozzle arrangement direction of the nozzle module 2 and ensuring the consistency of the nozzle arrangement directions of the plurality of nozzle modules 2.

[0069] When the adjustment of the nozzle arrangement direction of the nozzle module 2 is completed, subsequently, through the cooperation of the fixing bolt 32 and the threaded sleeve 31, the levelness and height of the spraying surface of each nozzle module 2 are precisely adjusted.

[0070] Referring to Figure 9 and Figure 10, Further, a plurality of deviation rectifying and pushing members 42 are provided, and the plurality of deviation rectifying and pushing members 42 are arranged at intervals in the arrangement direction of the plurality of nozzle modules 2. In this embodiment, two deviation rectifying and pushing members 42 are provided, and the two deviation rectifying and pushing members 42 respectively act on two ear plates 22 on one side of the mounting plate 21.

[0071] With such an arrangement, a plurality of deviation rectifying and pushing members 42 are used to apply forces to different positions of the nozzle module 2 respectively, so as to enable the nozzle module 2 to rotate in different directions, and the adjustment of the length direction of the nozzle arrangement of the nozzle module 2 is more free and the adjustment efficiency is higher.

[0072] In this embodiment, the deviation rectifying and pushing member 42 includes a differential head, and the differential head has high adjustment accuracy, reducing the difficulty of finely adjusting the position of the nozzle module 2.

[0073] It should be noted that when the nozzle module 2 is installed on the base 1, after the nozzle module 2 is placed at the specified position, due to the installation precision error, the length directions of the nozzle arrangements of the plurality of nozzle modules 2 are inconsistent, and the deviation value of the direction is small, less than 1 degree. Therefore, by using the deviation rectifying and pushing member 42 to drive the nozzle module 2 to rotate a small angle, the error of the nozzle arrangement direction can be corrected.

[0074] Referring to Figure 9 and Figure 10 , Further, the deviation rectifying assembly 4 further includes a protective case 43, the protective case 43 is connected to the nozzle module 2, and the pushing end of the deviation rectifying and pushing member 42 is adapted to push against the protective case 43. In this embodiment, the protective case 43 is fixed to the ear plate 22 by screws for the deviation rectifying and pushing member 42 to apply force.

[0075] With such an arrangement, the protective case 43 is used to bear the force instead of the nozzle module 2, avoiding damage to the nozzle module 2 during the assembly process. If the protective case 43 is deformed or even broken due to multiple pushes, it is also convenient to continue to protect the force-bearing part of the nozzle module 2 by replacing the protective case 43.

[0076] The embodiment of the present application provides a high-resolution nozzle module adapted to the spraying of large-sized substrates. The nozzle module is spliced by a plurality of nozzle modules 2, and the spray holes of the plurality of nozzle modules 2 form an interpolation fit, and the arrangement length of the spray holes is lengthened to meet the high-resolution printing requirements of large-sized substrates. The nozzle module 2 is installed on the base 1 through a plurality of fixing components 3, and the fixing components 3 are used to adjust the levelness of the spraying surface of the nozzle module 2, and ensure that the heights of the spraying surfaces of the plurality of nozzle modules 2 are the same. Specifically, the threaded sleeve 31 is used to push up the mounting plate 21 of the nozzle module 2 from the bottom and support the mounting plate 21, and then the fixing bolt 32 is used to pull down the mounting plate 21 to ensure that the mounting plate 21 abuts against the threaded sleeve 31, so as to adjust the height of the corners of the mounting plate 21. By using a plurality of fixing components 3 to adjust the heights of the plurality of corners of the mounting plate 21 respectively, the spraying surface of the nozzle module 2 can be adjusted to be horizontal. Then, the heights of the plurality of nozzle modules 2 are adjusted adaptively respectively to ensure that the heights of the spraying surfaces of the plurality of nozzle modules 2 are the same. Since the heights of multiple positions of each nozzle module 2 are adjusted separately, and the height of each nozzle module 2 can also be adjusted separately, the installation height of the nozzle module 2 is not easily affected by the installation accuracy during installation, and the deformation of the base 1 will not affect the height consistency of the spraying surfaces of the plurality of nozzle modules 2, improving the height consistency of the spraying surfaces after splicing of the plurality of nozzle modules 2, ensuring that the printing heights are the same when the plurality of nozzle modules 2 work, and improving the accuracy and quality of the spraying process.

[0077] Another embodiment of the present application provides a spraying device, including the high-resolution nozzle module adapted to the spraying of large-sized substrates as described above.

[0078] Another embodiment of the present application provides a spraying device. Since the spraying device includes the high-resolution nozzle module adapted to the spraying of large-sized substrates as described above, the beneficial effects of the spraying device are the same as those of the high-resolution nozzle module adapted to the spraying of large-sized substrates as described above, and will not be elaborated herein.

[0079] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application. Unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0080] It should be noted that in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0081] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A high-resolution nozzle module adapted for printing on large-sized substrates, characterized in that, It includes: A base, wherein a bottom plate of the base is provided with a plurality of mounting slots, and the mounting slots are arranged through the bottom plate; A plurality of nozzle modules, wherein the mounting plates of the plurality of nozzle modules are all mounted in the mounting grooves on the top surface of the base plate, and the bottoms of the nozzle modules are placed in the mounting grooves or extend below the mounting grooves, and the plurality of nozzle modules are arranged side by side in a longitudinal direction perpendicular to the arrangement of the nozzle holes in the nozzle modules; Multiple fixing components, multiple fixing components are respectively located at the corners of the bottom surface of the mounting plate, the fixing components include a threaded sleeve, a fixing bolt and a locking nut, the threaded sleeve is vertically penetrated by the base plate and threadedly connected to the base plate, the top end of the threaded sleeve is tightly pressed against the mounting plate, the fixing bolt is penetrated by the threaded sleeve, the fixing bolt is threadedly connected to the mounting plate, and the head of the fixing bolt is tightly pressed against the bottom end of the threaded sleeve, the locking nut is arranged near the bottom of the threaded sleeve, the locking nut is sleeved on the threaded sleeve and threadedly connected to the threaded sleeve, and the top end surface of the locking nut is tightly pressed against the base plate.

2. The high-resolution nozzle module adapted for inkjet printing on large-sized substrates according to claim 1, wherein Ear plates are provided at the corners of the mounting plate, the threaded sleeves are in contact with the bottom surfaces of the ear plates, and the fixing bolts are threadedly connected to the ear plates.

3. The high-resolution nozzle module adapted for printing on large-sized substrates according to claim 1, wherein A plurality of receiving holes are provided on the bottom surface of the base plate, the threaded sleeve and the fixing bolt are both passed through the bottom of the receiving hole, the locking nut is pressed against the bottom of the receiving hole, and the bottom of the threaded sleeve and the fixing bolt are both located inside the receiving hole.

4. The high-resolution nozzle module adapted for printing on large-sized substrates according to claim 3, characterized in that, The fixing assembly further includes a protective cover, which is arranged corresponding to the accommodating hole, fixed to the bottom surface of the bottom plate, and communicated with the accommodating hole.

5. The high-resolution nozzle module adapted for inkjet printing on large-sized substrates according to claim 1, wherein, It also includes multiple groups of correcting components, which act on multiple nozzle modules respectively. The correcting components are installed on the bottom plate to adjust the length direction of the nozzle holes of the nozzle modules.

6. The high-resolution nozzle module adapted to inkjet printing on large-size substrates according to claim 5, wherein, The correction component includes: A rotating shaft, the rotating shaft is arranged perpendicular to the base plate, the nozzle module is rotatably connected to the base plate via the rotating shaft, the two opposite side surfaces of the nozzle module are respectively a first adjustment surface and a second adjustment surface, and the first adjustment surface and the second adjustment surface are spaced apart in the length direction of the nozzle hole arrangement of the nozzle module, the rotating shaft is arranged close to the first adjustment surface, and the rotating shaft is arranged close to the first adjustment surface in the middle of the arrangement direction of the plurality of nozzle modules; a deflection-correcting ejection member, the deflection-correcting ejection member being mounted on the base, the top end of the deflection-correcting ejection member moving in the length direction of the nozzle holes of the nozzle module, the top end of the deflection-correcting ejection member being adapted to push the second adjustment surface, the deflection-correcting ejection member and the rotating shaft being staggered in the arrangement direction of the plurality of nozzle modules; A gap is left between the circumferential outer side surface of the screw portion of the fixing bolt and the circumferential inner side surface of the threaded sleeve, so as to leave space for the fixing bolt to move along with the nozzle module.

7. The high-resolution nozzle module adapted for inkjet printing on large-sized substrates according to claim 6, wherein, The deflection-correcting ejection member includes a differential head.

8. The high-resolution nozzle module adapted for inkjet printing on large-sized substrates according to claim 6, wherein, The deviation correction component further includes a protective case, the protective case is connected to the nozzle module, and the pushing end of the deviation correction pushing member is adapted to push the protective case.

9. An inkjet printing device, characterized in that, It includes a high-resolution nozzle module for printing on large-sized substrates as described in any one of claims 1 to 8.

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