Inking device of electrofluid nozzle and ink-jet printing system

Abstract

The utility model relates to an inking device of an electrofluid nozzle and an ink-jet printing system, and the inking device comprises a mounting seat which is used for the installation of an ink storage part and enables the top of a needle body of the ink storage part to be open; the inking mechanism comprises an inking seat, an injector and an extrusion driving assembly; the ink outlet end of the injector is arranged downwards, a sleeve of the injector is installed on the ink feeding base, and the extrusion driving assembly is suitable for pushing a piston rod of the injector so as to extrude out functional liquid in the sleeve. Wherein the needle body is located under the injector, so that the injector injects the functional liquid into the needle body. The functional liquid is accurately supplied into the needle body through the extrusion driving assembly and the injector, the precision and consistency of ink feeding of the needle body are improved, the ink feeding efficiency is improved, and therefore the electrofluid sprayer is suitable for large-scale application and popularization.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electro-fluidic jet head, in particular to an ink feeding device of an electro-fluidic jet head and an inkjet printing system. BACKGROUND

[0002] As an additive manufacturing technology, inkjet printing technology has the advantages of non-contact, large area, no need for mask, rapid manufacturing, low cost of finished products, and direct pattern manufacturing on planar / curved substrates, etc. It is a main manufacturing technology for printed electronics to replace the long process of photolithography / vacuum (development, etching, exposure and cleaning, etc.), and is widely used in display, sensing, chip, energy, aerospace and other fields.

[0003] Electro-fluidic jet printing technology uses electric field force to pull out the liquid droplets in the nozzle, so that the diameter of the printed dots is much smaller than the diameter of the nozzle, reducing the diameter of the ejected liquid droplets to meet the printing needs of higher pixel density, greatly improving the printing resolution.

[0004] Generally, the electro-fluidic jet head includes a power supply part and an ink storage part, and the power supply part and the ink storage part are assembled into the electro-fluidic jet head. The ink storage part includes a mounting part and a needle body, and the needle body is inserted into the mounting part. Before the electro-fluidic jet head is used, functional liquid needs to be injected into the needle body to prepare for the use of the electro-fluidic jet head. Then the ink storage part and the ink supply part are assembled.

[0005] In the related art, during the preparation stage before the electro-fluidic jet head is used, the ink storage part and the power supply part need to be prepared separately. During the preparation stage of the ink storage part, manual injection of functional liquid into the needle body is required for subsequent printing needs.

[0006] However, when manually injecting functional liquid into the needle body, manual operation is required to ink the needle body in the ink storage part and adjust the position of the needle body. Manual operation results in inconsistent amount of ink for the needle body each time, affecting the inking accuracy. In addition, manual inking also limits the mass promotion and application of the electro-fluidic jet head. Invention content

[0007] The present application provides an ink feeding device of an electro-fluidic jet head and an inkjet printing system to solve the technical problem that the accuracy of manual inking of the needle body in the related art is difficult to guarantee, the inking efficiency is low, and the mass promotion and application of the electro-fluidic jet head are limited.

[0008] In a first aspect, an ink feeding device of an electro-fluidic jet head is provided, comprising:

[0009] A mounting seat for mounting the ink storage part, and the needle body of the ink storage part is arranged with an open top;

[0010] An ink feeding mechanism, comprising an ink feeding seat, a syringe and a squeezing driving assembly; an ink outlet end of the syringe is arranged downward, a sleeve of the syringe is installed on the ink feeding seat, and the squeezing driving assembly is adapted to push a piston rod of the syringe to squeeze functional liquid in the sleeve out.

[0011] The needle body is located directly below the ink outlet end of the syringe so that the syringe injects the functional liquid into the needle body.

[0012] In some embodiments, the ink feeding device of the electro-fluidic jet head further comprises a moving mechanism, which comprises:

[0013] A transposition mechanism is drivingly connected with the mounting seat to drive the mounting seat to sequentially pass through a feeding and discharging station and an ink feeding station, and the ink feeding mechanism is located in the ink feeding station.

[0014] A deviation rectifying mechanism is drivingly connected with at least one of the ink feeding mechanism and the mounting seat to drive at least one of the ink feeding mechanism and the mounting seat to move in a deviation rectifying direction, and a driving direction of the deviation rectifying mechanism is arranged at an angle with a driving direction of the transposition mechanism in a horizontal plane.

[0015] The needle body of the ink storage part is located directly below the ink outlet end of the syringe when the needle body moves to the ink feeding station with the mounting seat.

[0016] In some embodiments, the ink feeding seat comprises:

[0017] A seat body;

[0018] A fixed seat fixed to the seat body;

[0019] A pressing plate which is arranged to slide up and down in the seat body and is located above the fixed seat, and a clamping space is formed between the pressing plate and the fixed seat; the sleeve comprises a limiting plate which is located between the pressing plate and the fixed seat and is pressed tightly on the fixed seat by the pressing plate.

[0020] In some embodiments, the ink feeding seat further comprises a stopper which is fixed to an edge of a top surface of the seat body, and a thickness of the stopper is smaller than a thickness of the limiting plate.

[0021] In some embodiments, the squeezing driving assembly comprises:

[0022] A pressing block is arranged on the seat body in a lifting and sliding manner, and the pressing block is located above the fixing seat; a placing groove is formed in the side surface of the pressing block, and a mounting groove is formed in the bottom surface of the pressing block; the top of the piston rod is provided with a pressing piece, the pressing piece extends into the placing groove, and the piston rod extends below the pressing block through the mounting groove;

[0023] A linear module is drivingly connected with the pressing block to drive the lifting movement of the pressing block.

[0024] In some embodiments, the extrusion driving assembly further comprises a locking bolt, the locking bolt extends from the top surface of the pressing block into the placing groove, and the locking bolt is threadedly connected with the pressing block, and the locking bolt is adapted to abut against the pressing piece.

[0025] In some embodiments, the extrusion driving assembly further comprises a locking plate, the locking plate is located in the placing groove, and the locking plate is adapted to press the pressing piece, and the locking bolt presses the pressing piece by abutting against the locking plate.

[0026] In some embodiments, the ink feeding mechanism further comprises:

[0027] An ink feeding frame, the ink feeding seat is arranged on the ink feeding frame in a lifting and sliding manner;

[0028] A lifting driving member, the lifting driving member is installed on the ink feeding frame, and the lifting driving member is drivingly connected with the ink feeding seat to drive the lifting movement of the ink feeding seat;

[0029] The ink feeding seat is lowered to drive the needle of the syringe to be inserted into the needle body.

[0030] In some embodiments, the mounting seat is provided with a mounting structure for fixing the ink storage part; the mounting structure comprises a mounting hole, and the mounting part is inserted into the mounting hole to form a plug-in fit with the mounting seat.

[0031] The technical scheme provided by the present application has the following beneficial effects:

[0032] The ink feeding device of the electro-fluid ejection head provided by the embodiments of the present application is used to supply functional liquid to the ink storage part of the electro-fluid ejection head. The ink storage part is mounted to the mounting seat, so that the needle body of the ink storage part is directly below the syringe. The extrusion driving assembly is used to drive the piston rod of the syringe to move relative to the sleeve, so as to extrude the functional liquid in the sleeve into the needle body.

[0033] By controlling the distance of the piston rod pressed down by the extrusion driving assembly, the amount of the extruded functional liquid can be accurately controlled, the ink feeding accuracy is improved, the amount of the functional liquid injected into the needle body each time is ensured to be consistent, and the consistency of the large batch ink feeding is ensured.

[0034] After the ink storage part is installed on the mounting seat, the functional liquid is automatically injected into the needle body by the ink feeding mechanism, so that the automatic ink feeding of the ink storage part is realized, the ink feeding efficiency is improved, and therefore the demand for large batch use of the electro-fluidic nozzle can be met.

[0035] In a second aspect, an inkjet printing system is provided, characterized in that the inkjet printing system comprises the ink feeding device of the electro-fluidic nozzle as described above.

[0036] In another embodiment of the present application, an inkjet printing system is provided, which comprises the ink feeding device of the electro-fluidic nozzle as described above, and therefore the inkjet printing system has the same beneficial effects as the ink feeding device of the electro-fluidic nozzle, which will not be described herein again. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0038] Figure 1 A schematic diagram of the ink feeding device of the electro-fluidic nozzle provided by the embodiment of the present application;

[0039] Figure 2 A schematic diagram of the movement mechanism and the mounting seat provided by the embodiment of the present application;

[0040] Figure 3 A schematic diagram of the ink feeding mechanism provided by the embodiment of the present application;

[0041] Figure 4 A front view of the ink feeding mechanism provided by the embodiment of the present application;

[0042] Figure 5 A schematic diagram of the syringe and the ink storage part provided by the embodiment of the present application.

[0043] In the drawings: 1, mounting seat; 1a, mounting structure; 2, ink feeding mechanism; 21, ink feeding seat; 211, seat body; 212, fixed seat; 213, pressing plate; 214, stop block; 215, guide rod; 22, syringe; 221, sleeve; 221a, limiting plate; 222, piston rod; 222a, pressing piece; 223, needle; 23, extrusion driving assembly; 231, pressing block; 231a, placing groove; 231b, mounting groove; 232, linear module; 233, locking plate; 234, locking bolt; 24, ink feeding frame; 25, lifting driving member; 3, movement mechanism; 31, transposition mechanism; 32, deviation rectifying mechanism; A, ink storage part; A1, mounting part; A2, needle body. DETAILED DESCRIPTION

[0044] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0045] The ink supply device for the electro-fluidic jet head and the inkjet printing system provided by the embodiments of the present application supply the functional liquid into the needle body accurately by using the extrusion driving assembly and the syringe, improve the accuracy and consistency of ink supply to the needle body, and improve the ink supply efficiency, so that the electro-fluidic jet head is suitable for mass promotion and application. The embodiments of the present application solve the technical problem that the accuracy of manual ink supply to the needle body is difficult to guarantee and the ink supply efficiency is low in the related art, and the mass promotion and application of the electro-fluidic jet head are limited.

[0046] Referring to Figure 1 and Figure 2 The ink supply device for the electro-fluidic jet head comprises a mounting seat 1 and an ink supply mechanism 2. The mounting seat 1 is used for mounting an ink storage part A, and the ink supply mechanism 2 injects ink into a needle body A2 of the ink storage part A on the mounting seat 1, so that automatic ink supply operation of the ink storage part A is realized, the ink supply accuracy and the ink supply efficiency are improved, and the mass promotion and application of the electro-fluidic jet head are supported.

[0047] Referring to Figure 1 and Figure 2 After the ink storage part A is mounted to the mounting seat 1, the needle body A2 of the ink storage part A is located directly below an ink outlet end of the ink supply mechanism 2, so that the functional liquid can be injected into the needle body A2.

[0048] Referring to Figure 1 and Figure 2 The mounting seat 1 is provided with a mounting structure 1a, and the mounting structure 1a is used for mounting the ink storage part A. The ink storage part A comprises a mounting part A1 and the needle body A2. The mounting part A1 is mounted to the mounting seat 1 through the mounting structure 1a, and the top of the needle body A2 is arranged in an open manner, so as to support the ink supply mechanism 2 to inject the functional liquid into the needle body A2 subsequently. In addition, the position of the mounting structure 1a can be calibrated with the ink outlet end of the ink supply mechanism 2 in advance through the mounting structure 1a. By arranging the mounting structure 1a directly below the ink outlet end of the ink supply mechanism 2, after the ink storage part A is mounted to the mounting seat 1 subsequently, the needle body A2 is located directly below the ink outlet end of the ink supply mechanism 2, and the needle body A2 is positioned quickly.

[0049] Referring to Figure 1 and Figure 2Specifically, the mounting structure 1a comprises a mounting hole, which is formed on the mounting base 1 and penetrates through the top surface of the mounting base 1. When the ink storage part A is mounted, the mounting part A1 is inserted into the mounting hole to be engaged with the mounting base 1.

[0050] In this way, the mounting and dismounting of the ink storage part A is facilitated in the form of insertion, and the design of the mechanism for automatically feeding and discharging the ink storage part A from the mounting base 1 is facilitated. In addition, the needle body A2 can be arranged in an open position to support the ink feeding mechanism 2 to feed ink to the needle body A2.

[0051] In some embodiments, the mounting structure 1a can further comprise a threaded hole, and the mounting part A1 is threadedly connected with the mounting base 1 by using the mounting structure 1a. In some embodiments, the mounting structure 1a can further comprise a clamping structure or a clamping structure to fix the mounting part A1 in the form of clamping.

[0052] Referring to Figure 1 and Figure 2 The ink feeding device of the electro-fluidic jet head further comprises a movement mechanism 3, which comprises a transposition mechanism 31 to drive the mounting base 1 to flow between the feeding and discharging station and the ink feeding station. The ink storage part A is mounted to or removed from the mounting base 1 at the feeding and discharging station. The ink feeding mechanism 2 is arranged at the ink feeding station, and the ink storage part A is inked at the ink feeding station.

[0053] In this way, the feeding and discharging of the ink storage part A and the ink feeding operation are separated, so that the feeding and discharging of the ink storage part A is more flexible, and the ink feeding mechanism 2 is less likely to interfere with the feeding and discharging of the ink storage part A. In addition, the arrangement of the stations facilitates the subsequent arrangement of the mechanism for automatically feeding and discharging the ink storage part A, thereby further improving the ink feeding efficiency.

[0054] Referring to Figure 1 and Figure 2 The driving direction of the transposition mechanism 31 is arranged along a straight line to facilitate quick and accurate switching of the mounting base 1 and the ink storage part A on the mounting base 1 to the designated station.

[0055] In this embodiment, the transposition mechanism 31 comprises a linear motor, a screw mechanism or a belt mechanism. The transposition mechanism 31 is drivingly connected with the mounting base 1 to drive the mounting base 1 and the ink storage part A to the feeding and discharging station and the ink feeding station. When the mounting base 1 is at the ink feeding station, the needle body A2 is directly below the ink outlet end of the ink feeding mechanism 2.

[0056] Referring to Figure 1 and Figure 2Further, the moving mechanism 3 further comprises a deviation rectifying mechanism 32, which is drivingly connected with at least one of the inking mechanism 2 and the mounting base 1 to drive at least one of the inking mechanism 2 and the mounting base 1 to move in a deviation rectifying direction, and the driving direction of the deviation rectifying mechanism 32 is arranged at an angle with the driving direction of the transposition mechanism 31 in a horizontal plane. In the embodiment, the deviation rectifying mechanism 32 comprises a linear motor or a screw mechanism.

[0057] With reference to Figure 1 and Figure 2 , the relative movement of the mounting base 1 and the inking mechanism 2 in the deviation rectifying direction by the deviation rectifying mechanism 32 can adjust the position of the mounting base 1 and the needle body A2, and ensure that the needle body A2 is right below the ink outlet end of the inking mechanism 2. The combination of the transposition mechanism 31 and the deviation rectifying mechanism 32 can ensure that the ink outlet end of the inking mechanism 2 and the needle body A2 are accurately aligned.

[0058] In the embodiment, the deviation rectifying mechanism 32 is drivingly connected with the mounting base 1 to drive the mounting base 1 to move in the deviation rectifying direction. Specifically, the deviation rectifying mechanism 32 is installed at the driving end of the transposition mechanism 31, and the mounting base 1 is installed at the driving end of the deviation rectifying mechanism 32, so that the movement of the mounting base 1 in the transposition direction and the deviation rectifying direction can be realized. Preferably, the driving direction of the deviation rectifying mechanism 32 is arranged perpendicularly with the driving direction of the transposition mechanism 31 in the horizontal plane.

[0059] In some embodiments, the inking mechanism 2 further comprises a visual positioning member, which positions the needle body A2 by imaging, and correspondingly controls the transposition mechanism 31 and the deviation rectifying mechanism 32 to operate to send the needle body A2 to be right below the ink outlet end of the quantitative ink outlet assembly. The visual positioning member comprises a camera.

[0060] With reference to Figure 1 , Figure 3 and Figure 4 , the inking mechanism 2 comprises an inking seat 21, a syringe 22 and a squeezing driving assembly 23. The ink outlet end of the syringe 22 is arranged downwardly, and it can be understood that the ink outlet end of the syringe 22 is the ink outlet end of the inking mechanism 2. The syringe 22 comprises a sleeve 221, a piston rod 222 and a needle 223, the sleeve 221 is filled with functional liquid, and the functional liquid in the sleeve 221 is squeezed out through the needle 223 by the movement of the piston rod 222 relative to the sleeve 221.

[0061] With reference to Figure 3 and Figure 4 , the sleeve 221 of the syringe 22 is installed on the inking seat 21, and the squeezing driving assembly 23 is adapted to push the piston rod 222 of the syringe 22 to squeeze the functional liquid in the sleeve 221 out.

[0062] In this way, the ink supply seat 21 is arranged to drive the plunger rod 222 of the syringe 22 to move the plunger rod 222 relative to the sleeve 221 of the syringe 22 to extrude the functional liquid in the sleeve 221 to realize the ink supply to the needle body A2. The amount of the functional liquid injected into the needle body A2 each time can be controlled by controlling the moving distance of the plunger rod 222.

[0063] With reference to Figure 3 and Figure 4 , in particular, the ink supply seat 21 comprises a seat body 211, a fixing seat 212 and a pressing plate 213. The fixing seat 212 is fixed to the seat body 211 by bolts. The pressing plate 213 is arranged to slide up and down on the seat body 211, and the pressing plate 213 is located above the fixing seat 212, and a clamping space is formed between the pressing plate 213 and the fixing seat 212.

[0064] With reference to Figure 3 and Figure 4 , in this embodiment, the sleeve 221 comprises a limiting plate 221a which is integrally formed on the top edge of the sleeve 221 to protrude from the circumferential outer side of the sleeve 221. The limiting plate 221a is located between the pressing plate 213 and the fixing seat 212, and the limiting plate 221a is pressed against the fixing seat 212 by the pressing plate 213.

[0065] In this way, the limiting plate 221a is supported by the fixing seat 212, and the limiting plate 221a is pressed against the fixing seat 212 by the pressing plate 213, so that the limiting plate 221a is fixed, and the sleeve 221 can be conveniently and quickly fixed. In this embodiment, the pressing plate 213 presses the sleeve 221 by its own weight.

[0066] With reference to Figure 3 and Figure 4 , further, the ink supply seat 21 further comprises a stopper 214 which is fixed on the top surface of the fixing seat 212, and the stopper 214 is fixed at the edge of the top surface of the fixing seat 212. The stopper 214 is used to support the pressing plate 213 to avoid the pressing plate 213 being directly pressed against the fixing seat 212, so that a gap is left between the pressing plate 213 and the fixing seat 212 to facilitate the separation of the pressing plate 213 and the fixing seat 212. In this embodiment, the height of the stopper 214 is less than the thickness of the limiting plate 221a.

[0067] In some embodiments, the ink supply seat 21 further comprises a pressing driving member which is installed on the seat body 211, and the pressing driving member is drivingly connected with the pressing plate 213 to drive the pressing plate 213 to move up and down. The sleeve 221 is fixed by driving the pressing plate 213 to press the limiting plate 221a of the sleeve 221, and the sleeve 221 is released from the pressing state by driving the pressing plate 213 to move up.

[0068] With reference to Figure 3 and Figure 4In this way, the syringe 22 is installed in the form of the pressing plate 213 and the fixed seat 212, the syringe 22 is quickly mounted and dismounted, and the mounting and dismounting efficiency of the syringe 22 is improved.

[0069] With reference to Figure 3 And Figure 4 The extrusion driving assembly 23 comprises a pressing block 231 and a linear module 232. The linear module 232 drives the pressing block 231 to press down the piston rod 222, so that the piston rod 222 extrudes the functional liquid in the sleeve 221. The linear module 232 comprises a screw mechanism or a linear motor.

[0070] In this way, the distance of the pressing block 231 is set to be lowered each time, so that the functional liquid injected into the needle body A2 is quantitatively controlled.

[0071] With reference to Figure 3 And Figure 4 Specifically, the pressing block 231 is slidably arranged on the seat body 211 and located above the fixed seat 212. In this embodiment, the ink feeding seat 21 further comprises a plurality of guide rods 215, which are all mounted on the seat body 211 and vertically arranged. The pressing block 231 is sleeved on the guide rods 215, so that the guide rods 215 guide the pressing block 231 and improve the lifting precision of the pressing block 231. In addition, the pressing plate 213 is also sleeved on the guide rods 215, so that the guide rods 215 limit and guide the pressing plate 213.

[0072] With reference to Figure 3 And Figure 4 The side surface of the pressing block 231 is provided with a placing groove 231a, and the bottom surface of the pressing block 231 is provided with a mounting groove 231b. The mounting groove 231b and the placing groove 231a are communicated, and the end of the mounting groove 231b is in an open shape.

[0073] In this embodiment, the top of the piston rod 222 is integrally formed with a pressing piece 222a, the pressing piece 222a extends into the placing groove 231a, and the piston rod 222 extends below the pressing block 231 through the mounting groove 231b.

[0074] In this way, the pressing piece 222a of the piston rod 222 extends into the placing groove 231a of the pressing block 231, and the limiting plate 221a of the sleeve 221 is located between the pressing plate 213 and the fixed seat 212. Therefore, after the syringe 22 is mounted on the ink feeding seat 21, the mounting of the syringe 22 is more stable, the sleeve 221 and the piston rod 222 are not easily shaken, and when the piston rod 222 is pushed, the piston rod 222 only moves relative to the sleeve 221 to extrude the functional liquid, so that the precision of the ink feeding is improved.

[0075] With reference to Figure 3 And Figure 4Further, the extrusion driving assembly 23 further comprises a locking bolt 234, which is inserted into the placing groove 231a from the top of the pressing block 231 and is threadedly connected with the pressing block 231. The pressing piece 222a of the piston rod 222 is abutted against by the locking bolt 234, so as to fix the piston rod 222 on the pressing block 231, further improve the movement consistency of the pressing block 231 and the piston rod 222, and ensure that the piston rod 222 pushes a specified amount of functional liquid into the needle body A2 as the pressing block 231 descends.

[0076] With reference to Figure 3 and Figure 4 Preferably, the extrusion driving assembly 23 further comprises a locking plate 233, which is arranged in the placing groove 231a and is used to press the pressing piece 222a on the top of the piston rod 222. The locking plate 233 is abutted against by the locking bolt 234 to abut against the pressing piece 222a. In this way, the deformation of the pressing piece 222a due to the concentrated force at a single point can be avoided, and the piston rod 222 can be prevented from being damaged.

[0077] With reference to Figure 1 and Figure 3 In the embodiment, the ink feeding mechanism 2 further comprises an ink feeding frame 24 and a lifting driving member 25. The ink feeding seat 21 is arranged on the ink feeding frame 24 in a track lifting and sliding manner. The lifting driving member 25 is installed on the ink feeding frame 24 and is drivingly connected with the ink feeding seat 21 to drive the ink feeding seat 21 to move up and down. In the embodiment, the lifting driving member 25 comprises a linear motor, an air cylinder or a screw mechanism.

[0078] With reference to Figure 5 When the needle body A2 is located directly below the ink outlet of the injector 22, the ink feeding seat 21 is lowered to drive the needle 223 of the injector 22 to be inserted into the needle body A2.

[0079] In this way, the needle 223 of the injector 22 is inserted into the needle body A2 by lowering the needle body A2 of the injector 22, and the needle body A2 is inked. The waste of functional liquid can be avoided, the amount of the functional liquid actually injected into the needle body A2 can be improved, and the ink feeding precision and reliability are improved.

[0080] The embodiment of the present application provides an ink feeding device of an electro-fluidic jet head, which is used to supply functional liquid to an ink storage part A of the electro-fluidic jet head. In the loading and unloading station, the ink storage part A is installed on the mounting seat 1, the mounting seat 1 and the ink storage part A are moved to the ink feeding station by the transposition mechanism 31, at this time, the needle body A2 of the ink storage part A is located directly below the injector 22, and the piston rod 222 of the injector 22 is moved relative to the sleeve 221 by the extrusion driving assembly 23 to extrude the functional liquid in the sleeve 221 into the needle body A2.

[0081] By controlling the distance of the extrusion driving assembly 23 driving the piston rod 222 to press down, the amount of the functional liquid extruded can be accurately controlled, the inking precision is improved, the amount of the functional liquid injected into the needle body A2 each time is ensured to be consistent, and the consistency of large batch inking is ensured.

[0082] After the ink storage portion A is mounted on the mounting seat 1, the ink storage portion A is automatically moved to the inking station and automatically injected with the functional liquid into the needle body A2 by the inking mechanism 2, so that automatic inking of the ink storage portion A is realized, the inking efficiency is improved, and therefore the demand for large batch use of the electrofluidic nozzle can be met.

[0083] The application further provides an inkjet printing system, characterized in that the inking device of the electrofluidic nozzle is included.

[0084] The inkjet printing system provided by another embodiment of the application includes the inking device of the electrofluidic nozzle, and therefore the beneficial effects of the inkjet printing system are consistent with those of the inking device of the electrofluidic nozzle, which will not be described herein again.

[0085] In the description of the application, it should be noted that the terms "upper", "lower", and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. Unless otherwise specified and limited, the terms "mounting", "connection", and "connection" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0086] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or device including the element.

[0087] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described above.

Claims

1. An inking device for an electro-fluidic jet head, characterized by, It includes: The mounting seat is used for installing the ink storage part, and the needle body top of the ink storage part is arranged in an open manner; The ink applying mechanism includes an ink applying seat, a syringe and a extrusion driving assembly; the ink outlet end of the syringe is arranged downward, the sleeve of the syringe is installed on the ink applying seat, and the extrusion driving assembly is suitable for pushing the piston rod of the syringe to extrude the functional liquid in the sleeve; Wherein, the needle body is located directly below the ink outlet end of the syringe, so that the syringe injects the functional liquid into the needle body.

2. An inking apparatus for an electro-fluidic jet head according to claim 1, wherein It also includes a movement mechanism, which includes: The transposition mechanism is drivingly connected with the mounting seat to drive the mounting seat to sequentially pass through the feeding and discharging station and the ink applying station, and the ink applying mechanism is located at the ink applying station; The deviation rectifying mechanism is drivingly connected with at least one of the ink applying mechanism and the mounting seat to drive at least one of the ink applying mechanism and the mounting seat to move in a deviation rectifying direction, and the driving direction of the deviation rectifying mechanism is arranged at an angle with the driving direction of the transposition mechanism in a horizontal plane; Wherein, when the needle body of the ink storage part moves to the ink applying station with the mounting seat, the needle body is located directly below the ink outlet end of the syringe.

3. An inking device for an electro-fluidic jet head according to claim 1, wherein The ink applying seat includes: The seat body; The fixed seat is fixed to the seat body; The pressing plate is arranged in a lifting and sliding manner on the seat body, and the pressing plate is located above the fixed seat, and a clamping space is formed between the pressing plate and the fixed seat; the sleeve includes a limiting plate, which is located between the pressing plate and the fixed seat, and the limiting plate is pressed tightly on the fixed seat by the pressing plate.

4. An inking device for an electro-fluidic jet head according to claim 3, wherein The ink applying seat also includes a stop block, which is fixed on the top edge of the seat body, and the thickness of the stop block is less than the thickness of the limiting plate.

5. An inking device for an electro-fluidic jet head as claimed in claim 3, wherein, The extrusion driving assembly includes: The pressing block is arranged in a lifting and sliding manner on the seat body, and the pressing block is located above the fixed seat; a placing groove is formed on the side surface of the pressing block, and an installation groove is formed on the bottom surface of the pressing block; the top of the piston rod is provided with a pressing piece, the pressing piece extends into the placing groove, and the piston rod extends below the pressing block through the installation groove; The linear module is drivingly connected with the pressing block to drive the pressing block to move up and down.

6. An inking apparatus for an electro-fluidic jet head according to claim 5, wherein The extrusion driving assembly also includes a locking bolt, which is arranged from the top surface of the pressing block into the placing groove, and the locking bolt is threadedly connected with the pressing block, and the locking bolt is suitable for abutting against the pressing piece.

7. An inking apparatus for an electro-fluidic jet head according to claim 6, wherein The extrusion driving assembly also includes a locking plate, which is located in the placing groove, and the locking plate is suitable for pressing the pressing piece, and the locking bolt presses the pressing piece by abutting against the locking plate.

8. The inking apparatus for an electro-fluidic jet head of claim 1, wherein, The ink applying mechanism also includes: The ink applying frame, the ink applying seat is arranged in a lifting and sliding manner on the ink applying frame; The lifting driving member is installed on the ink applying frame, and the lifting driving member is drivingly connected with the ink applying seat to drive the ink applying seat to move up and down; Wherein, the ink applying seat is lowered to drive the needle of the syringe to be inserted into the needle body.

9. The inking apparatus for an electro-fluidic jet head of claim 1, wherein, The mounting seat is provided with a mounting structure for fixing the ink storage part; the mounting structure comprises a mounting hole, and the mounting part is inserted into the mounting hole to form a plug-in fit with the mounting seat.

10. An inkjet printing system, characterized by, An inking device comprising an electro-fluidic jet as claimed in any of claims 1 to 9.

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