Spray head module and ink-jet printing system

Abstract

The invention relates to a nozzle module and an ink-jet printing system. The nozzle module comprises a base; a plurality of connecting contacts are arranged on the side surface of the spray head; the mounting seat is rotationally mounted on the base, a mounting structure is arranged on the mounting seat, and the spray head is in insertion fit with the mounting structure; the direction of the rotating axis of the nozzle is consistent with the spraying direction of the nozzle; the control assembly comprises a circuit board and a plurality of elastic contacts, the plurality of elastic contacts are connected with the circuit board, and the plurality of elastic contacts are electrically connected with the plurality of interfaces on the circuit board respectively; the plurality of elastic contacts respectively abut against the plurality of connecting contacts and push the spray head to abut against the mounting structure; and the adjusting assembly is in driving connection with the mounting seat to drive the mounting seat and the spray head to rotate relative to the base. Fixing and electric connection can be synchronously achieved by inserting the spray head into the mounting base, the spray head is convenient to replace, the mounting base is driven by the adjusting assembly to rotate relative to the base, and the mounting angle of the spray head is convenient to change so as to adapt to different printing density requirements.

Description

Technical Field

[0001] The present application relates to the field of inkjet printing technology, and in particular to a nozzle module and an inkjet printing system. Background Art

[0002] Inkjet printing, a contactless, pressureless, and maskless technology for display device fabrication, can precisely apply tiny droplets (in the picoliter or femtoliter range) to the desired location. The solvent evaporates, dries, and solidifies to form a thin film, making it easy to create displays with extremely high resolution.

[0003] In related technologies, an ink supply system is deployed to supply functional fluid to the printheads, and control contacts corresponding to the multiple printheads are electrically connected to corresponding contacts on a circuit board, thereby controlling the printheads' jetting through electronic control. Typically, the printheads need to be mounted on a printhead holder, their positions adjusted, and the circuit board and ink supply system connected to the printheads to prepare for inkjet printing.

[0004] Experimental desktop inkjet printers typically use disposable printheads to minimize device size, eliminating the ink supply system and thus reducing overall device size. Furthermore, during experimental printing, the print density can be varied by adjusting the printhead's mounting angle—that is, the angle between the printhead's nozzle length and the printing direction—to perform test prints at varying densities.

[0005] However, with disposable nozzles, when the functional liquid in the disposable nozzle is consumed and needs to be replaced, the nozzle needs to be unfastened and electrically connected, and a new nozzle needs to be fixed and electrically connected. This is cumbersome and inefficient. In addition, when the installation angle of the nozzle needs to be changed, multiple sets of mounting structures need to be arranged on the spray base. Changing the installation angle of the nozzle by changing the installation position of the nozzle complicates the structure of the nozzle base, and the repositioning of the nozzle also requires recalibration, which is a cumbersome operation. Summary of the Invention

[0006] The embodiments of the present application provide a nozzle module and an inkjet printing system to solve the technical problems in the related art such as the complicated operation of replacing the nozzle, the complicated operation of changing the installation angle of the nozzle, and the complicated preparation operation before printing, which affect the printing efficiency.

[0007] In a first aspect, a nozzle module is provided, comprising:

[0008] base;

[0009] A nozzle, wherein a plurality of connection contacts are provided on a side of the nozzle;

[0010] a mounting seat, the mounting seat being rotatably mounted on the base, the mounting seat being provided with a mounting structure, the nozzle and the mounting structure forming a plug-fitting fit, the mounting seat supporting the nozzle, the nozzle spraying surface being in an exposed state; the direction of the rotation axis of the nozzle being consistent with the spraying direction of the nozzle;

[0011] A control assembly, the control assembly comprising a circuit board and a plurality of elastic contacts, the plurality of elastic contacts being connected to the circuit board and being electrically connected to a plurality of interfaces on the circuit board respectively; the plurality of elastic contacts being respectively pressed against the plurality of connection contacts and pushing the nozzle against the mounting structure;

[0012] An adjustment component is drivingly connected to the mounting seat to drive the mounting seat and the nozzle to rotate relative to the base.

[0013] In some embodiments, the nozzle module further includes a limiting assembly, and the nozzle is fixed to the mounting base through the limiting assembly; the limiting assembly includes:

[0014] A limiting seat, the limiting seat being rotatably connected to the mounting seat;

[0015] A pressing member, wherein a supporting edge is provided on the side of the nozzle, the supporting edge is supported by the mounting seat, the pressing member is connected to the limiting seat, and the pressing member presses the supporting edge;

[0016] a fixing member, the fixing member being connected to the limiting seat and being detachably connected to the mounting seat, wherein when the fixing member is connected to the base, the pressing member is pressed against the supporting edge;

[0017] The limiting seat rotates to drive the pressing member to move above the supporting edge and press against the supporting edge, or the limiting seat rotates to drive the pressing member to move away from above the supporting edge.

[0018] In some embodiments, a pressing block is provided on the side of the limit seat. When the limit seat rotates so that the pressing member is pressed against the supporting edge, the pressing block presses against the side of the nozzle away from the connection contact.

[0019] In some embodiments, the nozzle module further includes a pushing assembly, the pushing assembly being used to push up the adjacent side surface of the nozzle on which the connection contact is provided; the pushing assembly includes an elastic sheet, the elastic sheet including a fixed portion and a deformable portion, the fixed portion being connected to the mounting seat, the deformable portion being connected to the fixed portion, and the deformable portion being deformed when approaching or moving away from the fixed portion;

[0020] The deformable portion includes a guide slope, which is inserted into the mounting structure along with the nozzle. The nozzle pushes the guide slope to make the deformable portion close to the fixing portion, and the deformed deformable portion pushes the nozzle against the mounting structure.

[0021] In some embodiments, the nozzle module further includes a ventilation structure, wherein the ventilation structure is used to adjust the air pressure inside the nozzle; the ventilation structure includes:

[0022] an air duct, the air duct being provided on the mounting seat;

[0023] a connecting head, the connecting head being connected to one end of the air passage, the air pressure connector of the nozzle being plugged into the connecting head for communication, and the plugging direction of the air pressure connector and the connecting head being consistent with the plugging direction of the nozzle and the mounting structure;

[0024] An external connector is connected to an end of the air passage away from the connecting head, and the external connector is suitable for connecting to an external air pressure device.

[0025] In some embodiments, the mounting seat includes a seat body and a mounting block, the mounting block is detachably connected to the seat body, and the mounting structure is provided on the mounting block.

[0026] In some embodiments, the mounting structure includes a mounting slot, the nozzle is inserted into the mounting slot, the nozzle is inserted into the mounting slot from top to bottom, and the spraying surface of the nozzle extends to below the base.

[0027] In some embodiments, the adjustment component includes:

[0028] A connecting piece connected to the mounting seat;

[0029] A push-up driving member, the push-up driving member is mounted on the base, and a driving end of the push-up driving member is suitable for pushing the connecting member to drive the mounting seat to rotate;

[0030] A limiting member applies a blocking force to the connecting member, the limiting member and the force applied to the connecting member by the pushing driving member are in opposite directions, and the limiting member and the pushing driving member clamp the connecting member to limit the rotation of the mounting seat.

[0031] In some embodiments, the adjustment assembly further includes an elastic member, both ends of which are connected to the mounting seat and the base respectively, and the elastic force of the elastic member causes the connecting member to continuously press against the driving end of the ejection driving member.

[0032] The beneficial effects of the technical solution provided by this application include:

[0033] The present invention provides a nozzle module. The nozzle is plugged into a mounting base. After plugging in, multiple elastic contacts on a circuit board are not only electrically connected to multiple connection points of the nozzle, but also press the nozzle against the mounting structure, securing the nozzle to the mounting base. Therefore, during nozzle installation, the nozzle can be positioned, fixed, and electrically connected simply by plugging. This facilitates nozzle replacement and ensures high consistency relative to the mounting base after each nozzle replacement, ensuring consistent printing.

[0034] Furthermore, once the printhead is mounted on the mounting base, its position relative to the mounting base is determined, defining the longitudinal direction of the printhead's nozzle arrangement. Furthermore, thanks to the pivoting connection between the mounting base and the base, the adjustment assembly conveniently rotates the mounting base, which in turn rotates the printhead, allowing the printhead's mounting angle to be adjusted, enabling printing at varying densities. This facilitates quick and precise adjustments to the printhead's mounting angle, making it ideal for diverse printing needs during experimental printing.

[0035] In a second aspect, an inkjet printing system is provided, comprising the nozzle module as described above.

[0036] Another embodiment of the present application provides an inkjet printing system. Since the inkjet printing system includes the above-mentioned nozzle module, the beneficial effects of the inkjet printing system are consistent with the beneficial effects of the above-mentioned nozzle module, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0038] Figure 1 A schematic diagram of a nozzle module provided in an embodiment of the present application;

[0039] Figure 2 A schematic diagram of the embodiment of the present application showing that the pressing member does not press the supporting edge;

[0040] Figure 3 A schematic diagram showing another perspective of the clamping member provided in an embodiment of the present application without clamping the supporting edge;

[0041] Figure 4 A schematic diagram of the state of the nozzle provided in an embodiment of the present application when it is inserted into the mounting base;

[0042] Figure 5 A schematic diagram of the control assembly provided in an embodiment of the present application pressed against the nozzle;

[0043] Figure 6 A schematic diagram of a pressing member provided in an embodiment of the present application pressing a support edge;

[0044] Figure 7 A partial exploded view of the nozzle and mounting base provided in an embodiment of the present application;

[0045] Figure 8 A schematic diagram of a ejection assembly ejecting a nozzle according to an embodiment of the present application;

[0046] Figure 9 A schematic diagram of a ventilation structure provided in an embodiment of the present application;

[0047] Figure 10 This is a schematic diagram showing that the nozzle orifice arrangement length direction is perpendicular to the printing direction;

[0048] Figure 11 This is a schematic diagram showing that the nozzle holes are arranged at an acute angle to the printing direction along their length.

[0049] In the figure: 1. Base; 2. Mounting seat; 2a. Mounting structure; 2b. Connecting structure; 2c. Sink; 2d. Fixing structure; 21. Base; 22. Mounting block; 3. Nozzle; 31. Connecting contact; 32. Support edge; 33. Air pressure connector; 3a. Spraying surface; 3b. Mounting surface; 3c. Connecting surface; 4. Control component; 41. Circuit board; 42. Elastic contact; 5. Adjustment component; 51. Connecting member; 52. Ejector drive member; 53. Limiting member; 54, elastic member; 6, limiting assembly; 61, limiting seat; 61a, tightening block; 62, pressing member; 621, pressing block; 622, pressing head; 623, adjusting bolt; 63, fixing member; 71, elastic sheet; 71a, fixing part; 71b, deformation part; 71b1, guide slope; 8, ventilation structure; 81, airway; 82, connecting head; 83, external joint; 9, indicating structure; 91, vernier scale; 92, main scale. DETAILED DESCRIPTION

[0050] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0051] The present invention provides a nozzle module and inkjet printing system. By providing a mounting structure and control assembly, the nozzle can be simultaneously fixed and electrically connected by plugging it into the mounting base, facilitating nozzle replacement. Furthermore, an adjustment assembly is used to rotate the mounting base relative to the base, thereby changing the nozzle's mounting angle to accommodate different printing density requirements. This application addresses the technical issues in related art such as the cumbersome nozzle replacement and angle adjustment operations, as well as the complex pre-printing preparations that affect printing efficiency.

[0052] Reference Figure 1-Figure 3 A printhead module includes a base 1, a mounting base 2, a printhead 3, a control assembly 4, and an adjustment assembly 5. The printhead 3 is mounted on the mounting base 2 and electrically connected to the control assembly 4, which independently controls each nozzle of the printhead 3. The mounting base 2 is rotatably mounted on the base 1, and the adjustment assembly 5 drives the mounting base 2 to rotate relative to the base 1, thereby changing the mounting angle of the printhead 3 and adjusting the printing density.

[0053] Reference Figure 1-Figure 3 The nozzle 3 is mounted on the mounting base 2 and rotates on the base 1 together with the mounting base 2. The spraying direction of the nozzle 3 is consistent with the axial direction of the rotation axis of the nozzle 3. After the nozzle 3 is installed, the spraying surface 3a of the nozzle 3 is exposed to ensure that the nozzle 3 can spray normally.

[0054] It should be understood that after the printhead 3 is mounted on the mounting base 2, its position relative to the mounting base 2 is determined, thereby defining the longitudinal direction of the nozzle orifice arrangement of the printhead 3. By rotating the mounting base 2 using the adjustment assembly 5, the printhead 3 is also rotated, thereby changing the longitudinal direction of the nozzle orifice arrangement of the printhead 3 and adjusting the angle between the longitudinal direction of the nozzle orifice arrangement of the printhead 3 and the printing direction. This allows for adjustment of the print density.

[0055] To facilitate understanding of the relationship between the installation angle of the nozzle 3 and the printing density. Figure 10 The length direction of the nozzle arrangement of the nozzle head 3 is perpendicular to the printing direction. At this time, when the nozzle head 3 moves relative to the substrate in the printing direction, the spacing between the orthographic projections of adjacent nozzles of the nozzle head 3 in the printing direction determines the printing density. Change the installation angle of the nozzle head 3 so that the length direction of the nozzle arrangement of the nozzle head 3 is set at an acute angle to the printing direction. Figure 11 At this time, the distance between the orthographic projections of adjacent nozzles of the nozzle 3 in the printing direction is reduced, thereby changing the printing density. Therefore, by changing the installation angle of the nozzle 3, the printing density can be adjusted to meet various printing requirements.

[0056] After the printhead module is installed in the inkjet printing system, the base 1 moves relative to the substrate support platform in the printing direction and perpendicular to the printing direction. Specifically, after the printhead 3 is attached to the base 1, the longitudinal direction of the nozzle arrangement of the printhead 3 is aligned at a fixed angle with the printing direction. By rotating the mounting bracket 2 and the printhead 3 relative to the base 1, the mounting angle of the printhead 3 can be adjusted to adjust the printing density, thereby adapting to printing operations with different print density requirements.

[0057] Among them, the adjustment component 5 is used to drive the mounting seat 2 to rotate relative to the base 1, and keep the adjusted position of the mounting seat 2 unchanged, so as to adjust the installation angle of the nozzle 3 and ensure that the position of the adjusted nozzle 3 does not change, that is, after the nozzle 3 is adjusted, the angle between the length direction of the nozzle hole arrangement of the nozzle 3 and the printing direction remains unchanged.

[0058] Reference Figure 1 and Figure 2 Specifically, the adjustment assembly 5 includes a push-up driving member 52 , a connecting member 51 and a limiting member 53 .

[0059] The connecting member 51 is fixed to the mounting base 2 , the pushing driving member 52 is installed on the base 1 , and the driving end of the pushing driving member 52 pushes the connecting member 51 , thereby driving the mounting base 2 to rotate by driving the connecting member 51 to move.

[0060] Reference Figure 1 and Figure 2 Preferably, the position where the connecting member 51 is connected to the mounting seat 2 is away from the rotation center of the mounting seat 2, and the pushing driving member 52 pushes the connecting member 51 away from one end of the mounting seat 2.

[0061] With this arrangement, when the push-up driving member 52 pushes the connecting member 51 to rotate the mounting base 2, the mounting base 2 is less likely to rotate at a large angle, thereby making it easier to rotate the mounting base 2 with high precision, thereby achieving high-precision adjustment of the installation angle of the nozzle 3.

[0062] Specifically, the ejector drive member 52 includes a differential head.

[0063] Specifically, the connecting member 51 includes a rod-shaped, block-shaped or plate-shaped member.

[0064] Reference Figure 1 and Figure 2 The limiting member 53 is used to apply a blocking force to the connecting member 51, and the directions of the forces applied by the limiting member 53 and the pushing driving member to the connecting member 51 are opposite. The limiting member 53 and the pushing driving member 52 clamp the connecting member 51 to limit the rotation of the mounting base 2.

[0065] Reference Figure 1 and Figure 2Specifically, when the installation angle of the mounting seat 2 is adjusted, the limit member 53 retreats to leave movement space for the push-up driving member 52 to drive the connecting member 51. When the position adjustment of the mounting seat 2 is completed, the limit member 53 is used to press the connecting member 51 tightly, so that the connecting member 51 is clamped by the push-up driving member 52 and the limit member 53.

[0066] This arrangement prevents the clamped connector 51 from moving relative to the base 1, thereby ensuring that the relative position of the connector 51 and the base 1 remains unchanged. This ensures that the angle between the longitudinal direction of the nozzle arrangement of the nozzle head 3 and the printing direction remains unchanged, thereby achieving stable printing at different print densities.

[0067] The limiting member 53 includes a micrometer head or a bolt.

[0068] Preferably, when the rotation angle of the mounting base 2 exceeds a preset rotation angle, the limiting member 53 is used to push the connecting member 51 in the opposite direction, and then the pushing driving member 52 is used to press against the connecting member 51 to clamp the connecting member 51, thereby achieving adjustment and maintenance of the installation angle of the nozzle 3.

[0069] Furthermore, the adjustment assembly 5 also includes an elastic member 54 , the two ends of which are respectively connected to the mounting seat 2 and the base 1 . The elastic force of the elastic member 54 causes the connecting member 51 to continuously press against the driving end of the ejection driving member 52 .

[0070] With this arrangement, the elastic force of the elastic member 54 keeps the connecting member 51 in constant contact with the driving end of the ejection driver 52. Therefore, the ejection motion of the driving end of the ejection driver 52 is directly fed back to the connecting member 51, without any motion loss. Furthermore, the elastic force of the elastic member 54 increases the damping of the ejection driver 52 pushing against the connecting member 51, facilitating a smaller displacement of the connecting member 51. This improves the precision of the movement of the connecting member 51 and the rotation of the mounting base 2, facilitating more precise adjustment of the installation angle of the nozzle 3.

[0071] In this embodiment, the elastic member 54 includes a spring.

[0072] Reference Figure 1 and Figure 2 Furthermore, the nozzle module further includes an indicator structure 9 for displaying the rotation angle of the mounting base 2 relative to the base 1, thereby visually determining the angle between the longitudinal direction of the nozzle hole arrangement of the nozzle 3 and the printing direction.

[0073] Indicator structure 9 includes a vernier scale 91 and a main scale 92. Vernier scale 91 is located on mounting base 2 and indicates the rotation angle of mounting base 2. Main scale 92 is located on base 1 and together they indicate the rotation angle of mounting base 2. The angle indicated by each division of vernier scale 91 is smaller than the angle indicated by each division of main scale 92.

[0074] In this arrangement, by coordinating the readings of the vernier scale 91 and the main scale 92 and adopting the principle of a vernier caliper, high-precision readings are achieved, thereby enabling high-precision monitoring of the installation angle of the nozzle 3 .

[0075] In this embodiment, each grid of the vernier scale 91 indicates an angle of 0.9 degrees, and each grid of the main scale 92 indicates an angle of 1 degree.

[0076] With this arrangement, the coordinated readings of the vernier scale 91 and the main scale 92 can accurately display the rotation angle of 0.1 degrees, thereby achieving high-precision monitoring of the installation angle of the nozzle 3.

[0077] In this embodiment, the ejection driving member 52 realizes the installation angle adjustment of the nozzle 3 within a first range. The first range is a small range. Specifically, the first range includes ±15 degrees.

[0078] It should be understood that after the nozzle 3 is mounted on the mounting base 2, the relative position of the nozzle 3 and the mounting base 2 remains unchanged. The nozzle 3 can be adjusted at a small angle by adjusting the assembly 5.

[0079] Generally, after the nozzle 3 is installed on the mounting base 2, the adjustment component 5 drives the mounting base 2 to rotate, and adjusts the angle between the nozzle arrangement length direction of the nozzle 3 and the printing direction within a first range, and the angle between the nozzle arrangement length direction of the nozzle 3 and the printing direction has a variation range of ±15 degrees.

[0080] By setting the rotation angle of the mounting base 2 driven by the adjustment component 5, the printing accuracy is ensured, and the size of the connecting member 51 is set within a reasonable range, which is more practical.

[0081] Reference Figure 1 and Figure 2 The mounting base 2 is provided with a plurality of fixing structures 2d, each of which is used to connect a connector 51 to the mounting base 2. The plurality of fixing structures 2d are distributed circumferentially around the rotation axis of the mounting base 2. When the connector 51 is connected to the mounting base 2 via different fixing structures 2d, the longitudinal direction of the nozzle arrangement of the nozzle head 3 on the mounting base 2 forms an angle close to 0 degrees, 30 degrees, 45 degrees, 60 degrees, and 90 degrees with the printing direction.

[0082] By changing the relative position of the connecting member 51 and the mounting base 2, the initial angle between the arrangement length direction of the nozzle holes of the nozzle head 3 and the printing direction is changed, so that the angle between the arrangement length direction of the nozzle holes of the nozzle head 3 and the printing direction can be adjusted to around 30 degrees, 45 degrees, 60 degrees and 90 degrees.

[0083] This arrangement increases the adjustment range of the installation angle of the nozzle 3 and facilitates faster and more accurate adjustment of the installation angle of the nozzle 3 to a specified angle.

[0084] In this embodiment, the fixing structure 2d includes a threaded hole, and the connecting member 51 is connected to the mounting base 2 by means of a bolt and threaded engagement in the threaded hole.

[0085] Reference Figure 1-Figure 3 The nozzle 3 includes a side support edge 32, and a plurality of connection contacts 31 are provided on the side of the nozzle 3. Each connection contact 31 corresponds to a specific nozzle hole of the nozzle 3, and is electrically connected to an external control system to achieve independent control of each nozzle hole of the nozzle 3.

[0086] Reference Figure 2-Figure 4 The mounting base 2 is provided with a mounting structure 2a, and the nozzle 3 is plugged into the mounting structure 2a. The supporting edge 32 of the nozzle 3 is supported by the mounting base 2. After the nozzle 3 is mounted on the mounting base 2, the spraying surface 3a of the nozzle 3 is exposed, that is, the spraying surface 3a of the nozzle 3 is not blocked by the mounting base 2 and the mounting structure 2a. After the nozzle 3 is inserted into the mounting base 2, the position of the nozzle 3 is determined, that is, the longitudinal direction of the arrangement of the nozzles 3 on the mounting base 2 is determined, and the centerline of the nozzle 3 is collinear with the rotation axis of the mounting base 2.

[0087] Reference Figure 3-Figure 5 , wherein the insertion direction of the nozzle 3 is not limited. Preferably, the insertion direction of the nozzle 3 is consistent with the spraying direction of the nozzle 3 and is consistent with the direction of the rotation axis of the mounting base 2.

[0088] In this embodiment, the base 1 is provided with a rotational slot extending therethrough, and the mounting base 2 is rotatably mounted within the slot. The spraying surface 3a of the nozzle 3 extends below the mounting base 2 and is positioned below the base 1. This ensures that the spraying surface 3a of the nozzle 3 is exposed, ensuring that the nozzle 3 can properly spray the functional fluid.

[0089] Reference Figure 3-Figure 5 The control component 4 is installed on the mounting base 2. After the nozzle 3 is plugged into the mounting base 2 through the mounting structure 2a, the connection contacts 31 on the side of the nozzle 3 are electrically connected to the control component 4.

[0090] Reference Figure 3-Figure 5 Specifically, the control assembly 4 includes a circuit board 41 and a plurality of elastic contacts 42. The plurality of elastic contacts 42 are all connected to the circuit board 41, and the plurality of elastic contacts 42 are respectively electrically connected to a plurality of interfaces on the circuit board 41. The circuit board 41 is fixed to the mounting base 2, and the side of the circuit board 41 with the elastic contacts 42 faces the side of the nozzle 3 with the connection contacts 31.

[0091] When the nozzle 3 is inserted into the mounting base 2, the multiple elastic contacts 42 respectively press against the multiple connection contacts 31 to achieve electrical connection of the nozzle 3. The multiple elastic contacts 42 push the nozzle 3 so that the nozzle 3 presses against the mounting structure 2a, thereby fixing the nozzle 3.

[0092] With this arrangement, the nozzle 3 is inserted into the mounting base 2 , thereby completing the fixation and electrical connection of the nozzle 3 , and facilitating the replacement of the nozzle 3 .

[0093] Reference Figure 3-Figure 5 In this embodiment, the length direction of the arrangement of the multiple connection contacts 31 of the nozzle 3 is consistent with the length direction of the arrangement of the nozzle holes of the nozzle 3. Preferably, the length direction of the nozzle 3 is also consistent with the length direction of the arrangement of the multiple connection contacts 31.

[0094] With this arrangement, after the nozzle 3 is inserted into the mounting seat 2, multiple elastic contacts 42 push the nozzle 3 so that the nozzle 3 is pressed against the mounting structure 2a, thereby positioning the installation position of the nozzle 3. Therefore, after the nozzle 3 is inserted into the mounting seat 2, the length direction of the nozzle hole arrangement of the nozzle 3 is determined, which simplifies the position calibration process of the nozzle 3 and facilitates the subsequent precise adjustment of the installation angle of the nozzle 3.

[0095] Reference Figure 3-Figure 7 Mounting base 2 further includes a connecting structure 2b, into which circuit board 41 is inserted, and spring contact 42 is located. Connecting structure 2b communicates with mounting structure 2a, and spring contact 42 is adapted to extend into mounting structure 2a and abut against nozzle 3.

[0096] With this arrangement, the elastic contact 42 presses against the nozzle 3 within the mounting structure 2a and against the inner wall of the mounting structure 2a. Therefore, the pushing force from the elastic contact 42 and the supporting force of the mounting structure 2a on the nozzle 3 are aligned in a straight line. The elastic pushing force of the elastic contact 42 is less likely to cause the nozzle 3 to tilt, thereby optimizing the positioning and securing of the nozzle 3.

[0097] In this embodiment, the mounting structure 2a includes a mounting groove that passes through the mounting seat 2. The connecting structure 2b includes a connecting groove that is provided with the mounting seat 2 and communicates with the mounting groove, and the circuit board 41 is fixed to the groove wall of the connecting groove.

[0098] Reference Figure 3-Figure 7 The elastic contact 42 includes a spring, a spring pin, and the like. In this embodiment, the elastic contact 42 comprises a spring. The spring includes a guide surface that is tilted upward. When the nozzle 3 is inserted into the mounting structure 2a, the nozzle 3 presses down on the guide surface, causing the spring to deform and then abut against the side of the nozzle 3.

[0099] With this arrangement, the elastic contact 42 can be deformed synchronously when the nozzle 3 is inserted, which facilitates the replacement of the nozzle 3.

[0100] The nozzle module further includes a limiting assembly 6 , and the nozzle 3 is fixed on the mounting base 2 via the limiting assembly 6 .

[0101] Reference Figure 3-Figure 7 The limiting assembly 6 includes a limiting seat 61, a pressing member 62, and a fixing member 63. The limiting seat 61 is rotatably connected to the mounting seat 2. The rotation axis of the limiting seat 61 is located on the side of the nozzle 3 facing away from the connection contact 31. The limiting seat 61 is adapted to rotate to the side of the nozzle 3. The pressing member 62 is connected to the limiting seat 61 and presses the supporting edge 32. As the limiting seat 61 rotates, the pressing member 62 moves above the supporting edge 32 and presses the supporting edge 32 against the mounting seat 2, thereby fixing the nozzle 3 and preventing the nozzle 3 from disengaging from the mounting seat 2.

[0102] In this embodiment, two pressing members 62 are provided, and the two pressing members 62 respectively press the supporting edges 32 at both ends of the nozzle 3 in the length direction, thereby fixing the nozzle 3 .

[0103] This arrangement, by pressing the printhead 3 against the mounting base 2, restricts movement of the printhead 3 relative to the mounting base 2, ensuring that the printhead 3 is not easily displaced during printing, thereby ensuring print quality. Furthermore, by pressing the support edge 32 tightly against the mounting base 2, the height of the printhead 3 is precisely positioned, ensuring that the spray surface 3a of the printhead 3 is more level. Furthermore, after replacing the printhead 3, the printhead 3 maintains better consistency before and after replacement.

[0104] By rotating the limit seat 61, the clamping member 62 can be removed from above the supporting edge 32, making it convenient for the nozzle 3 to be inserted into the mounting seat 2 and also convenient for removing the nozzle 3 from the mounting seat 2. The limit seat 61 does not cause position interference when replacing the nozzle 3.

[0105] Reference Figure 3-Figure 5 Specifically, the pressing member 62 includes a pressing block 621, which is fixed to the limiting seat 61. In this embodiment, the pressing block 621 is integrally formed with the limiting seat 61. As the limiting seat 61 rotates, the pressing block 621 moves above the supporting edge 32 and presses the supporting edge 32.

[0106] Reference Figure 3-Figure 5 In this embodiment, the pressing member 62 further includes a pressing head 622 and an adjusting bolt 623. The adjusting bolt 623 is threadedly provided on the pressing block 621. The pressing block 621 is fixed to one end of the adjusting bolt 623. The distance between the pressing head 622 and the pressing block 621 can be adjusted by rotating the adjusting bolt 623.

[0107] As the limit seat 61 rotates, the pressing head 622 is pressed against the support edge 32. By adjusting the position of the pressing head 622 by adjusting the bolt 623, the pressing head 622 is ensured to press the support edge 32 tightly. The pressing head 622 is suitable for pressing support edges 32 of different thicknesses, which expands the applicable range of the nozzle 3 types.

[0108] Reference Figure 3-Figure 5 The fixing member 63 is connected to the limiting seat 61 and is detachably connected to the mounting seat 2. When the fixing member 63 is connected to the base 1, the pressing member 62 is pressed against the supporting edge 32. That is, the fixing member 63 fixes the limiting seat 61 and the mounting seat 2, restricting the limiting seat 61 from rotating, thereby maintaining the pressing state of the pressing member 62 against the supporting edge 32.

[0109] Specifically, the fixing member 63 includes a fixing bolt that passes through the limiting seat 61 and is threadedly connected to the mounting seat 2 . The head of the fixing bolt is pressed against the limiting seat 61 to limit the limiting seat 61 from rotating relative to the mounting seat 2 .

[0110] This arrangement allows the retaining member 63 to constrain the limiting seat 61, while maintaining the pressing member 62's pressing state against the supporting edge 32, thereby securing the nozzle 3. This not only prevents the nozzle 3 from shifting, but also ensures the stability of the electrical connection between the control assembly 4 and the nozzle 3.

[0111] In this embodiment, the fixing bolt is passed through the pressing block 621 and then threadedly connected to the mounting seat 2. It should be noted that in this embodiment, the pressing block 621 and a portion of the limiting seat 61.

[0112] Reference Figure 4-Figure 7 Furthermore, a pressing block 61 a is provided on the side of the limit seat 61 . When the limit seat 61 rotates so that the pressing member 62 is pressed against the supporting edge 32 , the pressing block 61 a presses against the side of the nozzle 3 away from the connection contact 31 .

[0113] In this arrangement, while pressing the support edge 32, the pressing block 61a further pushes the nozzle 3 toward the control component 4 to ensure that the nozzle 3 is clamped in the mounting structure 2a and that all the connection contacts 31 of the nozzle 3 are stably electrically connected to the elastic contact 42.

[0114] Preferably, the pressing block 61a is made of elastic material, and the pressing block 61a elastically presses against the nozzle 3. Specifically, the pressing block 61a includes a rubber strip.

[0115] With this arrangement, the pressing block 61 a presses against the nozzle 3 flexibly, thereby preventing the nozzle 3 from being excessively pushed up and causing the nozzle 3 to be deflected or even damaged.

[0116] Reference Figure 7 and Figure 8, wherein the nozzle module further includes a pushing assembly, which is used to push the adjacent side of the nozzle 3 having the connection contact 31. It can be understood that the elastic contact 42 pushes the nozzle 3 on a side having the connection contact 31, and the pushing assembly pushes the nozzle 3 on an adjacent side having the connection contact 31, thereby pushing the nozzle 3 in both the length direction and the width direction of the nozzle 3. In addition, the clamping member 62 clamps the nozzle 3 in the vertical direction. This ensures that the position of the nozzle 3 relative to the mounting base 2 remains unchanged each time the nozzle 3 is installed, so that the consistency of the nozzle 3 after replacement is better. In addition, the nozzle 3 is positioned and installed on the mounting base 2, so after the nozzle 3 is installed on the mounting base 2, the length direction of the nozzle hole arrangement of the nozzle 3 is determined, which is convenient for subsequent precise changes in the installation position of the nozzle 3.

[0117] Reference Figure 7 and Figure 8 In this embodiment, the ejection assembly pushes the nozzle head 3 in the longitudinal direction of the nozzle head 3 so that the nozzle head 3 is pressed against the mounting structure 2a. By pushing the nozzle head 3 in the longitudinal direction of the nozzle head 3, the nozzle head 3 is positioned in the longitudinal direction of the nozzle head 3, and the positions of the multiple connection contacts 31 on the nozzle head 3 are also positioned, ensuring that all connection contacts 31 on the nozzle head 3 are pressed against the corresponding elastic contacts 42.

[0118] Reference Figure 7 and Figure 8 Specifically, the ejection assembly includes an elastic sheet 71, which includes a fixed portion 71a and a deformable portion 71b. The fixed portion 71a is connected to the base 1, and the deformable portion 71b is connected to the fixed portion 71a, and the deformable portion 71b deforms when it approaches or moves away from the fixed portion 71a. In this embodiment, the fixed portion 71a and the deformable portion 71b are integrally formed. The deformable portion 71b includes a guide slope 71b1, which is inserted into the mounting structure 2a as the nozzle 3 is inserted. The nozzle 3 pushes the guide slope 71b1 so that the deformable portion 71b approaches the fixed portion 71a, and the deformed deformable portion 71b pushes the nozzle 3 against the mounting structure 2a.

[0119] In this embodiment, the deformable portion 71 b of the elastic piece 71 pushes the nozzle 3 tightly against the wall of the installation groove.

[0120] Reference Figure 7-Figure 9 Furthermore, a sinking groove 2c is provided on the surface of the mounting seat 2, and the sinking groove 2c is connected to one end of the mounting groove.

[0121] Reference Figure 7-Figure 9 Specifically, the bottom surface of the nozzle head 3 is stepped and includes at least a mounting surface 3b and an ejection surface 3a. The ejection surface 3a is lower than the mounting surface 3b, and a vertical connecting surface 3c is formed between the mounting surface 3b and the ejection surface 3a. The ejection surface 3a of the nozzle head 3 extends through the mounting slot to the bottom of the mounting base 2, and the mounting surface 3b of the nozzle head 3 is located within the recessed groove 2c.

[0122] Reference Figure 7-Figure 9 Specifically, the fixing portion 71a of the elastic sheet 71 is mounted on the wall of the recessed groove 2c, and the deformable portion 71b of the elastic sheet 71 partially extends into the mounting groove. When the nozzle 3 is inserted into the mounting groove, the bottom portion of the nozzle 3 extends into the recessed groove 2c. During the insertion process, the nozzle 3 pushes against the deformable portion 71b, which deforms and abuts against the connecting surface 3c. The elastic force of the deformable portion 71b pushes against the nozzle 3, thereby securing and positioning the nozzle 3.

[0123] By setting the elastic sheet 71, when the nozzle 3 is inserted into the mounting seat 2, the deformation portion 71b of the elastic sheet 71 automatically pushes the nozzle 3 to achieve positioning and fixing of the nozzle 3, which is easy to operate.

[0124] In other embodiments, the elastic piece 71 is directly mounted on the surface of the mounting base 2 .

[0125] Reference Figure 7-Figure 9 The nozzle module further includes a ventilation structure 8, which is used to adjust the air pressure inside the nozzle 3 to control the supply of functional liquid at the nozzle hole of the nozzle 3.

[0126] Reference Figure 7-Figure 9 Specifically, the ventilation structure 8 includes an air duct 81, a connecting head 82 and an external connector 83. The air duct 81 is provided on the base 1, and the connecting head 82 is connected to one end of the air duct 81. The air pressure connector 33 of the nozzle 3 is plugged into the connecting head 82 for communication. The plug-in direction of the air pressure connector 33 and the connecting head 82 is consistent with the plug-in direction of the nozzle 3 and the mounting structure 2a. In this embodiment, the air pressure connector 33 is opened on the mounting surface 3b of the bottom surface of the nozzle 3, and the connecting head 82 is provided at the bottom of the sink 2c. As the nozzle 3 is inserted into the sink 2c, the air pressure connector 33 of the nozzle 3 forms a plug-in fit with the connecting head 82, so that the air pressure connector 33 of the nozzle 3 is connected to the air duct 81.

[0127] The external connector 83 is in communication with an end of the air passage 81 away from the communication head 82 , and the external connector 83 is adapted to be in communication with an external air pressure device.

[0128] With this arrangement, when installing the nozzle 3, after the nozzle 3 is plugged into the mounting base 2, the air pressure connector 33 of the nozzle 3 is connected to the external air pressure device through the connecting head 82, the air passage 81, and the external connector 83. Thus, as the nozzle 3 is fixed, the nozzle 3 is ventilated. This simplifies the installation of the nozzle 3 and improves the efficiency of nozzle 3 replacement.

[0129] Reference Figure 4-Figure 5 In this embodiment, the mounting seat 2 includes a seat body 21 and a mounting block 22 . The mounting block 22 is detachably connected to the seat body 21 , and the mounting structure 2a is disposed on the mounting block 22 .

[0130] Specifically, in this embodiment, the mounting block 22 is clamped to the base body 21 . In other embodiments, the mounting block 22 and the base body 21 are connected by bolts.

[0131] Reference Figure 5-Figure 9 In addition, in this embodiment, the mounting groove, the sink 2c, the limit assembly 6, the ejection assembly, and the ventilation structure 8 are all arranged on the mounting block 22 to facilitate the installation of various components. In addition, the mounting block 22 can be replaced separately, and the structure on the mounting block 22 can be replaced. This improves the adaptability of the nozzle 3.

[0132] The embodiment of the present application provides a nozzle module. Since the nozzle 3 is plugged and connected to the mounting base 2, after plugging, the multiple elastic contacts 42 on the circuit board 41 are not only electrically connected to the multiple connection contacts 31 of the nozzle 3, but also the multiple elastic contacts 42 press the nozzle 3 against the mounting structure 2a, so that the nozzle 3 is fixed to the mounting base 2. Therefore, during the installation process of the nozzle 3, the positioning, fixation and electrical connection of the nozzle 3 can be achieved only by plugging. This facilitates the replacement of the nozzle 3 and ensures that the nozzle 3 is highly consistent with the mounting base 2 after each replacement, ensuring the consistency of each printing.

[0133] Furthermore, once the nozzle head 3 is mounted on the mounting base 2, its position relative to the mounting base 2 is determined, thereby defining the longitudinal direction of the nozzle orifices of the nozzle head 3 on the mounting base 2. Furthermore, due to the rotatable connection between the mounting base 2 and the base 1, the adjustment assembly 5 conveniently rotates the mounting base 2, thereby driving the nozzle head 3 in conjunction with the rotation of the mounting base 2, thereby adjusting the mounting angle of the nozzle head 3 and achieving printing with different print densities. This facilitates quick and precise adjustment of the mounting angle of the nozzle head 3, making it more suitable for various printing requirements during experimental printing.

[0134] Another embodiment of the present application provides an inkjet printing system, including the nozzle module described above.

[0135] Another embodiment of the present application provides an inkjet printing system. Since the inkjet printing system includes the above-mentioned nozzle module, the beneficial effects of the inkjet printing system are consistent with the beneficial effects of the above-mentioned nozzle module, which will not be repeated here.

[0136] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0137] It should be noted that, in this application, relational terms such as "first" and "second" are used only 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 "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0138] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A nozzle module, characterized in that: It includes: base; A nozzle, wherein a plurality of connection contacts are provided on a side of the nozzle; a mounting seat, the mounting seat being rotatably mounted on the base, the mounting seat being provided with a mounting structure, the nozzle and the mounting structure forming a plug-fitting fit, the mounting seat supporting the nozzle, the nozzle spraying surface being in an exposed state; the direction of the rotation axis of the nozzle being consistent with the spraying direction of the nozzle; A control assembly, the control assembly comprising a circuit board and a plurality of elastic contacts, the plurality of elastic contacts being connected to the circuit board and being electrically connected to a plurality of interfaces on the circuit board respectively; the plurality of elastic contacts being respectively pressed against the plurality of connection contacts and pushing the nozzle against the mounting structure; An adjustment component is drivingly connected to the mounting seat to drive the mounting seat and the nozzle to rotate relative to the base.

2. The nozzle module according to claim 1, characterized in that: It also includes a limiting assembly, through which the nozzle is fixed to the mounting base; the limiting assembly includes: A limiting seat, the limiting seat being rotatably connected to the mounting seat; A pressing member, wherein a supporting edge is provided on the side of the nozzle, the supporting edge is supported by the mounting seat, the pressing member is connected to the limiting seat, and the pressing member presses the supporting edge; a fixing member, the fixing member being connected to the limiting seat and being detachably connected to the mounting seat, wherein when the fixing member is connected to the base, the pressing member is pressed against the supporting edge; The limiting seat rotates to drive the pressing member to move above the supporting edge and press against the supporting edge, or the limiting seat rotates to drive the pressing member to move away from above the supporting edge.

3. The nozzle module according to claim 2, characterized in that: A pressing block is provided on the side of the limit seat. When the limit seat rotates so that the pressing member is pressed against the supporting edge, the pressing block presses against the side of the nozzle away from the connection contact point.

4. The nozzle module according to claim 1, characterized in that: The ejection assembly is further included, the ejection assembly being used to eject the adjacent side surface of the nozzle having the connection contact; the ejection assembly includes an elastic sheet, the elastic sheet including a fixed portion and a deformable portion, the fixed portion being connected to the mounting seat, the deformable portion being connected to the fixed portion, and the deformable portion being deformed when approaching or moving away from the fixed portion; The deformable portion includes a guide slope, which is inserted into the mounting structure along with the nozzle. The nozzle pushes the guide slope to make the deformable portion close to the fixing portion, and the deformed deformable portion pushes the nozzle against the mounting structure.

5. The nozzle module according to claim 1, characterized in that: Also included is a ventilation structure, the ventilation structure is used to adjust the air pressure inside the nozzle; The ventilation structure comprises: an air duct, the air duct being provided on the mounting seat; a connecting head, the connecting head being connected to one end of the air passage, the air pressure connector of the nozzle being plugged into the connecting head for communication, and the plugging direction of the air pressure connector and the connecting head being consistent with the plugging direction of the nozzle and the mounting structure; An external connector is connected to an end of the air passage away from the connecting head, and the external connector is suitable for connecting to an external air pressure device.

6. The nozzle module according to any one of claims 1 to 5, characterized in that: The mounting seat includes a seat body and a mounting block. The mounting block is detachably connected to the seat body, and the mounting structure is arranged on the mounting block.

7. The nozzle module according to claim 6, characterized in that: The mounting structure includes a mounting groove, the nozzle is inserted into the mounting groove, the nozzle is inserted into the mounting groove from top to bottom, and the spraying surface of the nozzle extends to the bottom of the base.

8. The nozzle module according to claim 1, characterized in that: The adjustment component includes: A connecting piece connected to the mounting seat; A push-up driving member, the push-up driving member is mounted on the base, and a driving end of the push-up driving member is suitable for pushing the connecting member to drive the mounting seat to rotate; A limiting member applies a blocking force to the connecting member, the limiting member and the force applied to the connecting member by the pushing driving member are in opposite directions, and the limiting member and the pushing driving member clamp the connecting member to limit the rotation of the mounting seat.

9. The nozzle module according to claim 8, characterized in that: The adjustment assembly further comprises an elastic member, both ends of which are connected to the mounting seat and the base respectively, and the elastic force of the elastic member causes the connecting member to continuously press against the driving end of the ejection driving member.

10. An inkjet printing system, characterized in that: Comprising the nozzle module according to any one of claims 1 to 9.

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