Quick-release nozzle module and ink-jet printing system

Abstract

The invention relates to a quick-release spray head module and an ink-jet printing system, and the quick-release spray head module comprises a spray head which is provided with a plurality of connecting contacts on the side surface; the base is provided with a mounting structure, and the spray head and the mounting structure are in insertion fit; the abutting seat is movably arranged on the base; the control assembly comprises a circuit board and a plurality of connecting contacts, and the connecting contacts are all connected to the circuit board; the circuit board is connected to the abutting seat, the circuit board is suitable for moving along with the abutting seat, and the plurality of connecting contacts abut against the plurality of connecting contacts of the spray head respectively so as to be electrically connected with the plurality of connecting contacts respectively and push the spray head to abut against the mounting structure; and the limiting structure is used for maintaining the connecting contact to abut against the connecting contact. After the spray head is inserted into the base, the spray head is connected with the base, the electric control connection between the spray head and the circuit board is synchronously completed, and when the spray head is detached from the base, the electric control connection between the spray head and the circuit board is removed, so that the spray head is simple in replacement operation and high in replacement efficiency.

Description

Technical Field

[0001] The present application relates to the field of inkjet printing technology, and in particular to a quick-detachable 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] For experimental desktop inkjet printers, disposable nozzles are generally used to reduce the size of the equipment, thereby eliminating the ink supply system and reducing the overall equipment size.

[0005] However, the functional liquid capacity of disposable printheads is limited, and they need to be replaced frequently. To replace a disposable printhead, the printhead must first be unfastened from the printhead holder and disconnected from the circuit board. Then, a new printhead must be fixed to the printhead holder, the position of the printhead holder must be adjusted, and the circuit board must be electrically connected to the printhead. This makes printhead replacement cumbersome and inefficient. Summary of the Invention

[0006] The embodiments of the present application provide a quick-detachable nozzle module and an inkjet printing system to solve the technical problems of complicated nozzle replacement operation and low replacement efficiency in related technologies.

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

[0008] A nozzle, wherein a plurality of connection contacts are provided on a side of the nozzle;

[0009] A base, wherein a mounting structure is provided on the base, the nozzle and the mounting structure are plug-fitted together, and the base supports the nozzle;

[0010] an abutment seat, the abutment seat being movably disposed on the base and moving toward or away from the nozzle;

[0011] A control assembly, the control assembly comprising a circuit board and a plurality of connection contacts, the plurality of connection contacts being connected to the circuit board and being electrically connected to a plurality of interfaces of the circuit board respectively; the circuit board being connected to the abutment seat, the circuit board being adapted to move with the abutment seat, and the plurality of connection contacts being respectively pressed against a plurality of connection contacts of the nozzle to be electrically connected to the plurality of connection contacts respectively, and pushing the nozzle against the mounting structure;

[0012] A limiting structure is used to limit the movement of the abutment seat relative to the base to maintain the connecting contact tightly against the connecting contact.

[0013] In some embodiments, a connecting groove is provided through the inner wall of the mounting structure, all the connecting contacts of the nozzle are located within the mounting structure, and all the connecting contacts of the nozzle are exposed by the connecting groove, and the connecting contacts pass through the connecting groove and are pressed against the connecting contacts.

[0014] In some embodiments, the mounting structure includes a mounting slot, and the nozzle is inserted into the mounting slot from top to bottom.

[0015] In some embodiments, one end of the abutting seat is rotatably connected to the base, and the other end of the abutting seat is a free end, and the free end of the abutting seat is fixed to the base via the limiting structure.

[0016] In some embodiments, the limiting structure includes:

[0017] a mating block connected to the free end of the abutment seat;

[0018] The hook is elastically connected to the base, and the hook is suitable for being hooked on the matching block to limit the matching block from being away from the base.

[0019] In some embodiments, the quick-release nozzle module further includes an adjustment structure for changing the pressing force between the connection contact and the connection contact point; the adjustment structure includes:

[0020] an adjustment seat, wherein the control assembly is mounted on the adjustment seat;

[0021] an adjusting elastic member, the adjusting elastic member being provided between the adjusting seat and the abutting seat, and deforming when the connecting contact abuts against the connecting contact;

[0022] An adjusting bolt, wherein the connecting bolt passes through the adjusting seat and the abutting seat in sequence;

[0023] An adjusting nut is threadedly connected to the adjusting bolt, and the adjusting nut is tightly pressed against a side of the abutting seat away from the adjusting seat.

[0024] In some embodiments, the quick-detachable nozzle module further includes a pressing assembly, which is used to press the nozzle onto the base; the pressing assembly includes:

[0025] a guide rod connected to the base;

[0026] A pressing block, the pressing block is sleeved on the guide rod, a supporting edge is provided on the side of the nozzle, and the pressing block is suitable for pressing against the supporting edge;

[0027] A pressing elastic member, both ends of which are respectively connected to the guide rod and the pressing block, and the elastic force of the pressing elastic member causes the pressing block to be pressed against the supporting edge.

[0028] In some embodiments, the quick-detachable 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 base, the deformable portion being connected to the fixed portion, and the deformable portion being deformed when approaching or moving away from the fixed portion;

[0029] 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.

[0030] In some embodiments, the quick-detachable 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:

[0031] an air duct, the air duct being provided on the base;

[0032] 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;

[0033] 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.

[0034] In some embodiments, the base includes a mounting seat and a mounting block, the mounting block is detachably connected to the mounting seat, and the mounting structure is provided on the mounting block.

[0035] The beneficial effects of the technical solution provided by this application include:

[0036] The present invention provides a quick-release nozzle module. Due to the nozzle's mounting structure, the specific arrangement of the abutment seat, and the control assembly, once the nozzle is inserted into the mounting structure and mounted on the base, the nozzle's connection contacts are electrically connected to the circuit board's interface, completing both nozzle installation and electrical control connection. Furthermore, during nozzle replacement, once the nozzle contacts are connected to the base, the nozzle is simultaneously disconnected from the control assembly, simplifying nozzle installation and removal procedures and improving nozzle replacement efficiency.

[0037] Specifically, the nozzle is inserted into the mounting structure on the base to achieve initial installation of the nozzle. Then, by driving the abutment seat toward the nozzle, and driving the circuit board toward the nozzle, multiple connection contacts on the circuit board gradually approach the nozzle, and the multiple connection contacts gradually abut against multiple connection contacts of the nozzle, thereby achieving electrical connection of the nozzle. In addition, in the process of the connection contacts abutting the nozzle, the nozzle is pressed against the mounting structure, thereby restricting the movement of the nozzle relative to the base, thereby achieving the fixation of the nozzle. Therefore, in the process of fixing the nozzle to the base, the electrical connection of the nozzle is simultaneously achieved, which facilitates the installation of the nozzle and improves the efficiency of nozzle replacement.

[0038] In a second aspect, an inkjet printing system is provided, comprising the quick-detachable nozzle module as described above.

[0039] Another embodiment of the present application provides an inkjet printing system. Since the inkjet printing system includes the above-mentioned quick-detachable nozzle module, the beneficial effects of the inkjet printing system are consistent with the beneficial effects of the above-mentioned quick-detachable nozzle module, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] 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.

[0041] Figure 1 A schematic diagram of a quick-release nozzle module provided in an embodiment of the present application;

[0042] Figure 2 A schematic diagram of the abutment seat provided in an embodiment of the present application being away from the nozzle;

[0043] Figure 3 A partial schematic diagram of a quick-detachable nozzle module provided in an embodiment of the present application;

[0044] Figure 4A schematic diagram of the base and nozzle provided in an embodiment of the present application;

[0045] Figure 5 A partial exploded view of the quick-detachable nozzle module provided in an embodiment of the present application;

[0046] Figure 6 A schematic diagram of the elastic sheet provided in an embodiment of the present application acting on a nozzle;

[0047] Figure 7 A schematic diagram of the ventilation structure provided in an embodiment of the present application.

[0048] Figure: 1, nozzle; 11, connection contact; 12, support edge; 13, air pressure connector; 1a, injection surface; 1b, mounting surface; 1c, connection surface; 2, base; 2a, mounting structure; 2a1, connecting groove; 2b, sink groove; 21, mounting seat; 22, mounting block; 3, abutment seat; 31, support rod; 4, control component; 41, circuit board; 42, connection contact; 5, limit structure; 51, mating block; 5 2. Hook; 52a. Matching inclined surface; 6. Adjustment structure; 61. Adjustment seat; 62. Adjustment elastic member; 63. Adjustment bolt; 64. Adjustment nut; 7. Clamping assembly; 71. Guide rod; 72. Clamping block; 73. Clamping elastic member; 81. Elastic sheet; 81a. Fixing part; 81b. Deformation part; 81b1. Guide inclined surface; 9. Ventilation structure; 91. Airway; 92. Connecting head; 93. External connector. DETAILED DESCRIPTION

[0049] 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.

[0050] The present application provides a quick-detachable nozzle module and inkjet printing system. When replacing the nozzle of the quick-detachable nozzle module, the nozzle is plugged into the base, whereupon the nozzle is connected to the base and the electronic connection between the nozzle and the circuit board is simultaneously completed. When the nozzle is removed from the base, the electronic connection between the nozzle and the circuit board is also released. This makes nozzle replacement simple and efficient. This application addresses the technical issues of cumbersome nozzle replacement and low replacement efficiency in related technologies.

[0051] Reference Figure 1-Figure 3A quick-release nozzle module includes a nozzle 1, a base 2, an abutment seat 3, a control assembly 4, and a limiting structure 5. The nozzle 1 is inserted into the base 2. The abutment seat 3, carrying the control assembly 4, presses against the nozzle 1, electrically connecting the nozzle 1 and the control assembly 4 and pushing to secure the nozzle 1. The limiting structure 5 is used to limit the movement of the abutment seat 3 relative to the base 2, thereby maintaining the nozzle 1 in a fixed and electrically connected state.

[0052] With this arrangement, after the nozzle 1 is installed on the base 2 , the electrical control connection of the nozzle 1 is realized synchronously with the fixing of the nozzle 1 , which facilitates the replacement of the nozzle 1 and improves the replacement efficiency of the nozzle 1 .

[0053] The nozzle 1 includes a side support edge 12, and a plurality of connection contacts 11 are provided on the side of the nozzle 1. Each connection contact 11 corresponds to a specific nozzle hole of the nozzle 1, and is electrically connected to an external control system to achieve independent control of each nozzle hole of the nozzle 1.

[0054] Reference Figure 4 and Figure 5 The base 2 is provided with a mounting structure 2a, and the nozzle 1 is plugged into the mounting structure 2a. The support edge 12 of the nozzle 1 is supported by the base 2. After the nozzle 1 is mounted on the base 2, the spraying surface 1a of the nozzle 1 is exposed, that is, the spraying surface 1a of the nozzle 1 is not blocked by the base 2 and the mounting structure 2a.

[0055] There is no restriction on the insertion direction of the nozzle 1 . Preferably, the insertion direction of the nozzle 1 is consistent with the spraying direction of the nozzle 1 .

[0056] Reference Figure 1 and Figure 2 The abutment seat 3 is movably disposed on the base 2 and moves toward or away from the nozzle 1. The abutment seat 3 moves toward the nozzle 1 to press the nozzle 1 against the mounting structure 2a and secure the nozzle 1. The abutment seat 3 moves away from the nozzle 1 to release the abutment seat 3 from the nozzle 1, thereby releasing the nozzle 1 from its position. The abutment seat 3 can be driven manually or electrically, and can move in a linear or rotational manner.

[0057] Reference Figure 1 and Figure 2 , wherein the control component 4 is installed on the abutment seat 3, and the control component 4 is pressed against the nozzle 1 as the abutment seat 3 moves, and the control component 4 is pressed against the connection contact 11 of the nozzle 1 to realize the electrical connection between the control component 4 and the nozzle 1.

[0058] With this arrangement, when the abutment seat 3 drives the control assembly 4 to approach and press against the nozzle 1, the nozzle 1 is not only fixed, but also electrically connected to the control assembly 4, so that fixation and power supply are completed at the same time, which facilitates the disassembly of the nozzle 1.

[0059] Reference Figure 1 and Figure 2 Specifically, the control component 4 includes a circuit board 41 and a plurality of connection contacts 42. The plurality of connection contacts 42 are all connected to the circuit board 41, preferably fixed by welding. The plurality of connection contacts 42 are respectively electrically connected to the plurality of interfaces of the circuit board 41. As the abutment seat 3 of the control component 4 approaches the nozzle 1, the plurality of connection contacts 42 contact and push the nozzle 1. The plurality of connection contacts 42 respectively abut against the plurality of connection contacts 11 of the nozzle 1, thereby achieving electrical connection between the connection contacts 42 and the connection contacts 11 of the nozzle 1, thereby achieving electrical control connection of the nozzle 1.

[0060] With this arrangement, the connecting contact 42 pushes against the spray head 1, thereby securing the spray head 1. Furthermore, by pushing against the spray head 1, the spray head 1 abuts against the mounting structure 2a in the pushing direction of the connecting contact 42, thereby positioning the spray head 1. This ensures greater consistency in the position of the spray head 1 relative to the base 2 after replacement. Furthermore, the connecting contact 42 is electrically connected to the connecting contact 11 of the spray head 1, achieving simultaneous securing and electrical connection of the spray head 1. This simplifies the replacement process for the spray head 1 and improves its efficiency.

[0061] Preferably, the connecting contact 42 includes a spring pin, and the connecting contact 42 elastically abuts against the connecting contact 11, avoiding a hard collision with the nozzle 1, and utilizing the elastic force of the connecting contact 42 to ensure that the connecting contact 42 continuously and stably abuts against the connecting contact 11, avoiding poor contact between the connecting contact 42 and the connecting contact 11.

[0062] In this embodiment, a plurality of connection contacts 11 are arranged on the side of the showerhead 1 along the length direction of the showerhead 1 .

[0063] With this arrangement, when the multiple connection contacts 42 press against the nozzle 1 , the nozzle 1 is subjected to force at multiple points along its length, thereby ensuring that the nozzle 1 is pressed against tightly.

[0064] Reference Figure 2 and Figure 4 In this embodiment, the inner wall of the mounting structure 2a is provided with a through-hole connecting groove 2a1. All the connection contacts 11 of the nozzle 1 are located within the mounting structure 2a and exposed by the connecting groove 2a1. The connection contacts 42 pass through the connecting groove 2a1 and abut against the connection contacts 11.

[0065] This arrangement, through the arrangement of the connecting groove 2a1, allows the connecting contact 42 to extend into the interior of the mounting structure 2a, pressing against the showerhead 1. This protects the electrical connection between the showerhead 1 and the connecting contact 42, preventing external environmental influences and ensuring a stable connection. Furthermore, the connecting contact 42 pushes the showerhead 1 against the inner wall of the mounting structure 2a. The thrust of the connecting contact 42 and the reactive support force of the mounting structure 2a on the showerhead 1 are aligned, preventing the showerhead 1 from tilting due to the pushing of the connecting contact 42, thus ensuring a stable and secure showerhead 1.

[0066] Reference Figure 4 and Figure 5 In this embodiment, the mounting structure 2a comprises a mounting slot, which is defined in the base 2 and extends from top to bottom. The nozzle 1 is inserted into the mounting slot from top to bottom, with the spray surface 1a of the nozzle 1 extending below the base 2, and the supporting edge 12 of the nozzle 1 supported by the top surface of the base 2. Accordingly, the abutment seat 3 drives the control assembly 4 to move horizontally, moving closer to or further away from the side of the nozzle 1 provided with the connection contact 11.

[0067] In this way, the insertion direction of the nozzle 1 is vertically arranged, which is not easy to interfere with other structural components of the nozzle 1 printing system, and facilitates the installation and removal of the nozzle 1.

[0068] In other embodiments, the mounting structure 2a may further include a mounting sleeve, which is fixed to the base 2, the nozzle 1 is inserted into the mounting sleeve, and the supporting edge 12 of the nozzle 1 is placed on the top surface of the mounting sleeve.

[0069] Reference Figure 1 and Figure 2 The abutment seat 3 is rotatably connected to the base 2 . As the abutment seat 3 rotates, the abutment seat 3 drives the control component 4 to move closer to or away from the side of the nozzle 1 where the connection contact 11 is provided.

[0070] Reference Figure 1 and Figure 2 Specifically, one end of the abutment seat 3 is rotatably connected to the base 2 , and the other end of the abutment seat 3 is a free end, and the free end of the abutment seat 3 is fixed to the base 2 through a limiting structure 5 .

[0071] With this arrangement, since the abutment seat 3 is rotatably connected to the base 2, the abutment seat 3 can be moved as far away from the base 2 as possible, and the side of the abutment seat 3 used to install the control component 4 can be moved away from the nozzle 1 as the abutment seat 3 rotates, making it convenient to install and maintain the control component 4.

[0072] Reference Figure 1-Figure 3Furthermore, a support rod 31 is provided at the free end of the abutment seat 3. The support rod 31 is fixed to the abutment seat 3 and extends below the base 2. The free end of the abutment seat 3 is in contact with the base 2 via the support rod 31. Preferably, the support rod 31 includes a spring pin and is passed through the abutment seat 3.

[0073] In this arrangement, the support rod 31 is used to support the free end of the abutment seat 3, which reduces the contact area between the free end of the abutment seat 3 and the base 2. Therefore, the abutment seat 3 is not easy to shake in the height direction, and the height of the connecting contact 42 of the control component 4 on the abutment seat 3 is not easy to change, thereby ensuring that the connecting contact 42 is stably and accurately pressed against the connecting contact 11 of the nozzle 1.

[0074] Reference Figure 1 and Figure 2 , wherein the limiting component is used to limit the free end of the abutment seat 3 to maintain the connecting contact 42 of the control component 4 against the nozzle 1.

[0075] Reference Figure 1 and Figure 2 Specifically, the limiting structure 5 includes a mating block 51 and a hook 52. The mating block 51 is connected to the free end of the abutment seat 3. In this embodiment, the mating block 51 is integrally formed with the free end of the abutment seat 3. The hook 52 is elastically connected to the base 2 and is suitable for hooking onto the mating block 51 to prevent the mating block 51 from moving away from the base 2.

[0076] Preferably, the hook 52 includes a mating inclined surface 52a. As the abutment seat 3 rotates, the mating block 51 at the free end of the abutment seat 3 pushes the mating inclined surface 52a to push the hook 52 until the hook 52 is hooked on the mating block 51, thereby completing the position limitation of the mating block 51 and the abutment seat 3.

[0077] With this arrangement, when the abutment seat 3 drives the control assembly 4 toward and against the nozzle 1, the mating block 51 pushes the hook 52 until the hook 52 hooks onto the mating block 51, thereby facilitating the fixing of the abutment seat 3. When the nozzle 1 needs to be replaced, the hook 52 is moved away from the abutment seat 3 to release the hook from the mating block 51, and the abutment seat 3 can be rotated to move the control assembly 4 away from the nozzle 1.

[0078] In this embodiment, the hook 52 is connected to the base 2 via a spring or an elastic block.

[0079] Reference Figure 1 and Figure 2 , wherein the quick-detachable nozzle module further includes an adjustment structure 6 , which is used to change the pressing force between the connecting contact 42 and the connecting contact 11 .

[0080] With this arrangement, by changing the pressing force between the connecting contact 42 and the connecting contact 11, it is possible to ensure that the nozzle 1 is pressed and fixed, and to ensure that the connecting contact 42 is stably pressed against the connecting contact 11, and the pressing force is not easy to be too large to damage the connecting contact 11 and the nozzle 1.

[0081] Reference Figure 1 and Figure 2 , refer to Figure 1 and Figure 2 Specifically, the adjustment structure 6 includes an adjustment seat 61, an adjustment elastic member 62, an adjustment bolt 63, and an adjustment nut 64. The control assembly 4 is mounted on the adjustment seat 61 by bolts. The adjustment elastic member 62 is provided between the adjustment seat 61 and the abutting seat 3, and the adjustment elastic member 62 is in a compressed deformation state to maintain the distance between the adjustment seat 61 and the abutting seat 3. When the connecting contact 42 is pressed against the connecting contact 11, the adjustment elastic member 62 is deformed. The connecting bolt passes through the adjustment seat 61 and the abutting seat 3 in sequence. The adjustment nut 64 is threadedly connected to the adjustment bolt 63, and the adjustment nut 64 is pressed against the side of the abutting seat 3 facing away from the adjustment seat 61.

[0082] With this arrangement, by rotating the adjustment nut 64, the length of the adjustment bolt 63 between the abutment seat 3 and the adjustment seat 61 is changed. Due to the elastic force of the adjustment elastic member 62, the spacing between the abutment seat 3 and the adjustment seat 61 is maintained, thereby changing the distance the adjustment seat moves relative to the abutment seat 3. Furthermore, because the abutment seat 3 remains fixed relative to the base 2 and the spray head 1, the spacing between the adjustment seat 61 and the abutment seat 3 remains constant after the control assembly 4 abuts the spray head 1. It is understood that the greater the initial distance between the abutment seat 3 and the adjustment seat 61, the greater the deformation of the adjustment elastic member 62 after the abutment seat 3 drives the control assembly 4 to abut the spray head 1, and the greater the abutting force applied by the control assembly 4 to the spray head 1. The smaller the initial distance between the abutment seat 3 and the adjustment seat 61, the smaller the deformation of the adjustment elastic member 62 after the abutment seat 3 drives the control assembly 4 to abut the spray head 1, and the smaller the abutting force applied by the control assembly 4 to the spray head 1.

[0083] This arrangement makes it easy to adjust the pressing force applied by the control component 4 to the nozzle 1 .

[0084] Preferably, the adjusting elastic member 62 includes a spring, and the spring is sleeved on the adjusting bolt 63 .

[0085] In this embodiment, the adjustment structures 6 include multiple groups, and the arrangement direction of the multiple groups of adjustment structures 6 is consistent with the arrangement direction of the multiple connecting contacts 42 .

[0086] Reference Figure 4 and Figure 6Optionally, the quick-detachable nozzle module further includes a pressing assembly 7, which is used to press the nozzle 1 against the base 2. When the nozzle 1 is inserted into the base 2, the pressing assembly 7 presses down the supporting edge 12 of the nozzle 1 to press the nozzle 1 in the vertical direction.

[0087] This arrangement ensures that the support edge 12 of the nozzle head 1 is tightly fitted to the top surface of the base 2 by pressing the nozzle head 1 in the vertical direction, and ensures that the spraying surface 1a of the nozzle head 1 is in the same plane each time the nozzle head 1 is installed, thereby ensuring the consistency of the spraying surface 1a after the nozzle head 1 is replaced.

[0088] Reference Figure 4 and Figure 6 Specifically, the pressing assembly 7 includes a guide rod 71 , a pressing block 72 and a pressing elastic member 73 .

[0089] Guide rod 71 is connected to base 2. In this embodiment, guide rod 71 is vertically fixed to base 2. A pressing block 72 is sleeved on guide rod 71 and adapted to press against support edge 12. The ends of a pressing elastic member 73 are connected to guide rod 71 and pressing block 72, respectively. The elastic force of pressing elastic member 73 causes pressing block 72 to press against support edge 12.

[0090] With this arrangement, the elastic force of the compression spring member 73 drives the compression block 72 to press against the support edge 12 of the nozzle 1, thereby ensuring that the support edge 12 of the nozzle 1 is in close contact with the base 2. As a result, the consistency of the spray surface 1a of the nozzle 1 is improved each time the nozzle 1 is installed. In addition, the compression block 72 is mounted on the guide rod 71 and can rotate relative to the guide rod 71. By rotating the compression block 72, space is left for inserting and removing the nozzle, preventing the compression block 72 from interfering with the installation and removal of the nozzle 1.

[0091] The pressing elastic member 73 includes a spring, which is sleeved on the guide rod 71 .

[0092] Furthermore, the clamping assembly 7 includes two groups, and the two groups of clamping assemblies 7 act on both ends of the length direction of the nozzle 1 respectively, thereby ensuring that the supporting edge 12 of the nozzle 1 is tightly attached to the base 2, ensuring the consistency of the installation of the nozzle 1.

[0093] Reference Figure 5 and Figure 6 The quick-detachable nozzle module further includes a push-up assembly, which is used to push up the adjacent side surface of the nozzle 1 having the connection contact 11. It is understood that the abutment seat 3 drives the control assembly 4 to push up the side surface of the nozzle 1 having the connection contact 11, and the push-up assembly pushes up the adjacent side surface of the nozzle 1 having the connection contact 11, thereby pushing up the nozzle 1 in both the length and width directions. This ensures that the position of the nozzle 1 relative to the base 2 remains unchanged each time the nozzle 1 is installed, thereby improving the consistency of the nozzle 1 after replacement.

[0094] Reference Figure 5 and Figure 6 Specifically, the ejection assembly includes an elastic sheet 81, which includes a fixed portion 81a and a deformable portion 81b. The fixed portion 81a is connected to the base 2, and the deformable portion 81b is connected to the fixed portion 81a, and the deformable portion 81b deforms when it approaches or moves away from the fixed portion 81a. In this embodiment, the fixed portion 81a and the deformable portion 81b are integrally formed. The deformable portion 81b includes a guide slope 81b1, which is inserted into the mounting structure 2a as the nozzle 1 is inserted. The nozzle 1 pushes the guide slope 81b1 so that the deformable portion 81b approaches the fixed portion 81a, and the deformed deformable portion 81b pushes the nozzle 1 against the mounting structure 2a.

[0095] Reference Figure 5 and Figure 6 In this embodiment, the deformed portion 81b of the elastic sheet 81 pushes the nozzle 1 tightly against the wall of the installation groove.

[0096] Reference Figure 5 and Figure 6 Furthermore, a sinking groove 2b is provided on the surface of the base 2, and the sinking groove 2b is connected to one end of the installation groove.

[0097] Reference Figure 5-Figure 7 Specifically, the bottom surface of the nozzle head 1 is stepped and includes at least a mounting surface 1b and an ejection surface 1a. The ejection surface 1a is lower than the mounting surface 1b, and a vertical connecting surface 1c is formed between the mounting surface 1b and the ejection surface 1a. The ejection surface 1a of the nozzle head 1 extends through the mounting slot to the bottom of the base 2, while the mounting surface 1b of the nozzle head 1 is located within the recessed groove 2b.

[0098] Reference Figure 5-Figure 7 Specifically, the fixing portion 81a of the elastic sheet 81 is mounted on the wall of the recessed groove 2b, and the deformable portion 81b of the elastic sheet 81 partially extends into the mounting groove. When the nozzle 1 is inserted into the mounting groove, the bottom portion of the nozzle 1 extends into the recessed groove 2b. During the insertion process, the nozzle 1 pushes against the deformable portion 81b, which then deforms and abuts against the connecting surface 1c. The elastic force of the deformable portion 81b pushes against the nozzle 1, thereby securing and positioning the nozzle 1.

[0099] By setting the elastic sheet 81, when the nozzle 1 is inserted into the base 2, the deformation portion 81b of the elastic sheet 81 automatically pushes the nozzle 1 to achieve positioning and fixation of the nozzle 1, which is easy to operate.

[0100] In other embodiments, the elastic sheet 81 is directly mounted on the surface of the base 2 .

[0101] The abutment seat 3 drives the control component 4 to press against the nozzle 1, the push-up component to press against the nozzle 1, and the pressing component 7 to press against the nozzle 1, so as to realize the positioning and fixation of the nozzle 1 in three directions, thereby ensuring better consistency of the nozzle 1 after each installation.

[0102] Reference Figure 5-Figure 7 The quick-detachable nozzle module further includes a ventilation structure 9 , which is used to adjust the air pressure inside the nozzle 1 to control the supply of functional liquid at the nozzle hole of the nozzle 1 .

[0103] Reference Figure 5-Figure 7 Specifically, the ventilation structure 9 includes an air duct 91, a connecting head 92 and an external connector 93. The air duct 91 is provided on the base 2, the connecting head 92 is connected to one end of the air duct 91, and the air pressure connector 13 of the nozzle 1 is plugged into the connecting head 92 for communication. The plug-in direction of the air pressure connector 13 and the connecting head 92 is consistent with the plug-in direction of the nozzle 1 and the mounting structure 2a. In this embodiment, the air pressure connector 13 is opened on the mounting surface 1b of the bottom surface of the nozzle 1, and the connecting head 92 is provided at the bottom of the sink 2b. As the nozzle 1 is inserted into the sink 2b, the air pressure connector 13 of the nozzle 1 forms a plug-in fit with the connecting head 92, so that the air pressure connector 13 of the nozzle 1 is connected to the air duct 91.

[0104] The external connector 93 is in communication with an end of the air passage 91 away from the communication head 92 , and the external connector 93 is adapted to be in communication with an external air pressure device.

[0105] With this arrangement, when installing the nozzle 1, after the nozzle 1 is plugged into the base 2, the air pressure connector 13 of the nozzle 1 is connected to the external air pressure device through the connecting head 92, the air channel 91, and the external connector 93. Thus, as the nozzle 1 is fixed, the ventilation operation of the nozzle 1 is realized. This simplifies the installation operation of the nozzle 1 and improves the efficiency of nozzle 1 replacement.

[0106] In this embodiment, the base 2 includes a mounting seat 21 and a mounting block 22 . The mounting block 22 is detachably connected to the mounting seat 21 , and the mounting structure 2 a is disposed on the mounting block 22 .

[0107] Reference Figure 4 Specifically, in this embodiment, the mounting block 22 is snap-connected to the mounting seat 21 . In other embodiments, the mounting block 22 is bolted to the mounting seat 21 .

[0108] In addition, in this embodiment, the mounting groove, the sink groove 2b, the pressing assembly 7, the ejection assembly, and the ventilation structure 9 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 1.

[0109] The embodiment of the present application provides a quick-release nozzle module. Due to the specific arrangement of the nozzle 1, the abutment seat 3, and the control assembly 4, once the nozzle 1 is inserted into the mounting structure 2a and mounted on the base 2, the connection contacts 11 of the nozzle 1 are electrically connected to the interface of the circuit board 41, thereby completing the installation and electrical control connection of the nozzle 1 at the same time. Furthermore, during the replacement process of the nozzle 1, after the nozzle 1 contacts the base 2, the electrical connection between the nozzle 1 and the control assembly 4 is also released, simplifying the installation and removal steps of the nozzle 1 and improving the efficiency of replacing the nozzle 1.

[0110] Specifically, the nozzle 1 is inserted into the mounting structure 2a on the base 2 to achieve the initial installation of the nozzle 1. Then, by driving the abutment seat 3 toward the nozzle 1 and driving the circuit board 41 toward the nozzle 1, the multiple connection contacts 42 on the circuit board 41 gradually approach the nozzle 1, and the multiple connection contacts 42 gradually abut against the multiple connection contacts 11 of the nozzle 1, thereby achieving the electrical control connection of the nozzle 1. In addition, in the process of the connection contacts 42 abutting against the nozzle 1, the nozzle 1 is pressed against the mounting structure 2a, thereby restricting the movement of the nozzle 1 relative to the base 2, thereby achieving the fixation of the nozzle 1. Therefore, in the process of fixing the nozzle 1 to the base 2, the electrical control connection of the nozzle 1 is simultaneously achieved, which facilitates the installation of the nozzle 1 and improves the efficiency of replacing the nozzle 1.

[0111] Another embodiment of the present application provides an inkjet printing system, including the quick-detachable nozzle module as described above.

[0112] Another embodiment of the present application provides an inkjet printing system. Since the inkjet printing system includes the above-mentioned quick-detachable nozzle module, the beneficial effects of the inkjet printing system are consistent with the beneficial effects of the above-mentioned quick-detachable nozzle module, which will not be repeated here.

[0113] 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.

[0114] 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.

[0115] 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 quick-release nozzle module, characterized in that: It includes: A nozzle, wherein a plurality of connection contacts are provided on a side of the nozzle; A base, wherein a mounting structure is provided on the base, the nozzle and the mounting structure are plug-fitted together, and the base supports the nozzle; an abutment seat, the abutment seat being movably disposed on the base and moving toward or away from the nozzle; A control assembly, the control assembly comprising a circuit board and a plurality of connection contacts, the plurality of connection contacts being connected to the circuit board and being electrically connected to a plurality of interfaces of the circuit board respectively; the circuit board being connected to the abutment seat, the circuit board being adapted to move with the abutment seat, and the plurality of connection contacts being respectively pressed against a plurality of connection contacts of the nozzle to be electrically connected to the plurality of connection contacts respectively, and pushing the nozzle against the mounting structure; A limiting structure is used to limit the movement of the abutment seat relative to the base to maintain the connecting contact tightly against the connecting contact.

2. The quick-release nozzle module according to claim 1, characterized in that: A connecting groove is provided on the inner wall of the mounting structure, all the connecting contacts of the nozzle are located in the mounting structure, and all the connecting contacts of the nozzle are exposed by the connecting groove. The connecting contacts pass through the connecting groove and are pressed against the connecting contacts.

3. The quick-detachable nozzle module according to claim 1 or 2, characterized in that: The mounting structure includes a mounting groove, and the nozzle is inserted into the mounting groove from top to bottom.

4. The quick-release nozzle module according to claim 1, characterized in that: One end of the abutting seat is rotatably connected to the base, and the other end of the abutting seat is a free end, and the free end of the abutting seat is fixed to the base through the limiting structure.

5. The quick-detachable nozzle module according to claim 4, characterized in that: The limiting structure includes: a mating block connected to the free end of the abutment seat; The hook is elastically connected to the base, and the hook is suitable for being hooked on the matching block to limit the matching block from being away from the base.

6. The quick-release nozzle module according to claim 1, characterized in that: The invention also includes an adjustment structure, wherein the adjustment structure is used to change the pressing force between the connecting contact and the connecting contact point; the adjustment structure includes: an adjustment seat, wherein the control assembly is mounted on the adjustment seat; an adjusting elastic member, the adjusting elastic member being provided between the adjusting seat and the abutting seat, and deforming when the connecting contact abuts against the connecting contact; An adjusting bolt, wherein the connecting bolt passes through the adjusting seat and the abutting seat in sequence; An adjusting nut is threadedly connected to the adjusting bolt, and the adjusting nut is tightly pressed against a side of the abutting seat away from the adjusting seat.

7. The quick-release nozzle module according to claim 1, characterized in that: It also includes a pressing assembly, which is used to press the nozzle onto the base; the pressing assembly includes: a guide rod connected to the base; A pressing block, the pressing block is sleeved on the guide rod, a supporting edge is provided on the side of the nozzle, and the pressing block is suitable for pressing against the supporting edge; A pressing elastic member, both ends of which are respectively connected to the guide rod and the pressing block, and the elastic force of the pressing elastic member causes the pressing block to be pressed against the supporting edge.

8. The quick-release 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 base, 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.

9. The quick-release 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 base; 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.

10. The quick-release nozzle module according to claim 1, characterized in that: The base includes a mounting seat and a mounting block. The mounting block is detachably connected to the mounting seat, and the mounting structure is arranged on the mounting block.

11. An inkjet printing system, characterized in that: It comprises the quick-detachable nozzle module according to any one of claims 1 to 10.

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