Shunting device and ink-jet printer
By setting up an ink supply shunt and a return shunt in the inkjet printer, and using exhaust components to connect the ink supply cavity and the return cavity, the problems of complex nozzle structure and exhaust interference are solved, and a more stable printing effect is achieved.
Patent Information
- Application Number
- CN202520939924.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-14
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2035-05-14
AI Technical Summary
The nozzle structure is complex and the exhaust process is easy to interfere with the nozzle ink jet, affecting the printing quality.
The ink supply diverter and the ink return diverter are adopted, and the ink supply cavity and the ink return cavity are connected through the exhaust assembly, simplifying the nozzle structure, avoiding gas retention, and separating the exhaust gas and inkjet process.
Improve printing stability, avoid printing defects such as bubbles and frame breakage, and ensure the stability and effect of the printing process.
Smart Images
Figure CN223072170U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of inkjet printers, and particularly relates to a flow splitting device and an inkjet printer. Background Art
[0002] An inkjet printer is a device that ejects ink onto a printing medium (e.g., paper) through one or more nozzles to achieve printing. An inkjet printer generally includes a flow splitter connected to the nozzles, and the ink is evenly distributed to each nozzle through the flow splitting of the flow splitter. During the printing process, the ink entering the flow splitter contains gas. To ensure the printing stability and reduce printing defects such as broken frames and light colors, the gas needs to be discharged from the flow splitter.
[0003] In related technologies, generally, exhaust holes are provided on each nozzle, and the gas is discharged through the exhaust holes on the nozzles. This makes the structure of the nozzles very complex, and it is easy to interfere with the inkjet of the nozzles during the exhaust process, affecting the printing quality. Summary of the Utility Model
[0004] The embodiments of this application provide a flow splitting device and an inkjet printer, which can solve the technical problems that the structure of the nozzles in related technologies is very complex, and it is easy to interfere with the inkjet of the nozzles during the exhaust process, affecting the printing quality.
[0005] The first aspect of the embodiments of this application provides a flow splitting device, which is applied to an inkjet printer. The inkjet printer includes an ink supply pipeline, an ink return pipeline, and nozzles. The flow splitting device includes:
[0006] An ink supply flow splitter, which has an ink supply chamber. The ink supply flow splitter is connected to the ink supply pipeline, and the nozzles are arranged at the bottom of the ink supply chamber;
[0007] An ink return flow splitter, which has an ink return chamber. The ink return flow splitter is connected to the ink return pipeline;
[0008] An exhaust assembly, one end of which is connected to the ink supply flow splitter, and the other end of which is connected to the ink return flow splitter. The exhaust assembly communicates the ink supply chamber and the ink return chamber.
[0009] The second aspect of this application provides an inkjet printer, which includes an ink supply pipeline, an ink return pipeline, and nozzles. The inkjet printer further includes the flow splitting device in any one of the above.
[0010] Implementing the flow splitting device and inkjet printer provided by the embodiments of the present application has the following beneficial effects: By providing an ink supply splitter and an ink return splitter, and using an exhaust assembly to connect the ink supply chamber and the ink return chamber, the gas in the ink supply chamber can be transmitted to the ink return chamber through the exhaust assembly, which can simplify the structure of the nozzle, avoid printing defects such as bubbles, frame breaks, or light colors caused by gas remaining in the inkjet system, improve the printing stability of the inkjet printer. At the same time, by separating the exhaust process from the inkjet process of the nozzle using the exhaust assembly, the influence of the exhaust process on the nozzle can be effectively reduced, further ensuring the stability of the printing process and the printing effect. Description of the Drawings
[0011] 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 embodiments or related technical descriptions. Obviously, the following-described drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0012] Figure 1 is a schematic structural diagram of a flow splitting device provided by an embodiment of the present application;
[0013] Figure 2 is a schematic cross-sectional view of a flow splitting device provided by an embodiment of the present application;
[0014] Figure 3 is a schematic cross-sectional view of a self-locking member provided by an embodiment of the present application;
[0015] Figure 4 is a schematic structural diagram of the self-locking portion in the connected position provided by an embodiment of the present application;
[0016] Figure 5 is a schematic structural diagram of the self-locking portion in the connected position provided by an embodiment of the present application;
[0017] Figure 6 is a schematic structural diagram of the self-locking portion in the blocked position provided by an embodiment of the present application. Detailed Embodiments
[0018] The following details the embodiments of the present application. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, but should not be construed as a limitation of the present application.
[0019] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. These terms are only used for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.
[0020] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specifically defined.
[0021] In the present application, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0022] Please refer to Figures 1 to 6 , an embodiment of the present application provides a flow splitting device 100, which is applied to an inkjet printer. The inkjet printer includes an ink supply pipeline 200, an ink return pipeline 300, and a nozzle 400. The flow splitting device 100 includes an ink supply splitter 10, an ink return splitter 20, and an exhaust assembly 30.
[0023] The ink supply splitter 10 is a housing structure having an ink supply chamber 11, and the ink supply chamber 11 can store the ink that needs to be transmitted to the nozzle 400 during the printing process. The ink supply splitter 10 is connected to the ink supply pipeline 200 of the inkjet printer, and the nozzle 400 is connected to the ink supply chamber 11. Optionally, the nozzle 400 is connected to the bottom of the ink supply chamber 11 or is connected to the bottom of the ink supply chamber 11 through a pipeline. During printing, the ink can be transmitted along the ink supply pipeline 200 of the inkjet printer into the ink supply chamber 11 of the ink supply splitter 10, and then flow from the ink supply chamber 11 into the nozzle 400 for inkjet printing.
[0024] The ink-return diverter 20 is a housing structure with an ink-return cavity 21, and the ink-return cavity 21 can store the ink recovered from the ink supply cavity 11. The ink-return diverter 20 is connected to the ink-return pipeline 300 of the inkjet printer. After printing is completed, the excess ink can flow from the ink-return diverter 20 through the ink-return pipeline 300 back into the ink cartridge of the inkjet printer.
[0025] The exhaust component 30 is a hollow structure. One end of it is connected to the ink supply diverter 10, and the other end is connected to the ink-return diverter 20, thereby connecting the ink supply cavity 11 and the ink-return cavity 21.
[0026] In the initial stage of printing, the ink supply cavity 11 is filled with gas instead of ink. When printing is required, the ink in the ink cartridge of the inkjet printer flows along the ink supply pipeline 200 into the ink supply cavity 11 of the ink supply diverter 10. The ink entering the ink supply cavity 11 displaces the corresponding volume of gas out of the ink supply cavity 11. The exhausted gas flows from the ink supply cavity 11 into the exhaust component 30 and enters the ink-return cavity 21 of the ink-return diverter 20 through the exhaust component 30. Finally, it flows from the ink-return cavity 21 into the ink-return pipeline 300 of the inkjet printer and is discharged by other structures of the inkjet printer. The ink flowing into the ink supply cavity 11 is evenly distributed to each nozzle 400 by the ink supply diverter 10. The nozzle 400 sprays the ink onto the printing medium to complete the printing task. When printing is completed or the ink volume in the ink supply cavity 11 is greater than a preset threshold, the ink can flow from the ink supply cavity 11 through the exhaust component 30 into the ink-return cavity 21 of the ink-return diverter 20, then flow from the ink-return cavity 21 into the ink-return pipeline 300, and flow back to the ink cartridge of the inkjet printer along the ink-return pipeline 300.
[0027] In the embodiment of the present application, by setting the ink supply diverter 10 and the ink-return diverter 20, and using the exhaust component 30 to connect the ink supply cavity 11 and the ink-return cavity 21, the gas in the ink supply cavity 11 can be transmitted to the ink-return cavity 21 through the exhaust component 30. This can simplify the structure of the nozzle 400, avoid printing defects such as bubbles, broken frames, or light colors caused by gas remaining in the inkjet system, improve the printing stability of the inkjet printer. At the same time, by using the exhaust component 30 to separate the exhaust process from the inkjet process of the nozzle 400, the influence of the exhaust process on the nozzle 400 can be effectively reduced, further ensuring the stability of the printing process and the printing effect.
[0028] As Figures 1 to 3As shown, in some embodiments, the exhaust assembly 30 includes a self-locking member 31 and an exhaust pipe 34 connected to the self-locking member 31. The exhaust pipe 34 is a hollow tubular structure. One end of the self-locking member 31 is connected to the ink supply splitter 10, the other end of the self-locking member 31 is connected to the exhaust pipe 34, one end of the exhaust pipe 34 is connected to the self-locking member 31, and the other end of the exhaust pipe 34 is connected to the ink return splitter 20. The self-locking member 31 can connect or disconnect the passage between the ink supply chamber 11 and the exhaust pipe 34. Specifically, the self-locking member 31 has a connected state and a blocked state. When the self-locking member 31 is in the connected state, the passage between the ink supply chamber 11 and the exhaust pipe 34 is connected. At this time, the ink supply chamber 11 is connected to the ink return chamber 21 through the self-locking member 31 and the exhaust pipe 34 in sequence. The ink and / or gas in the ink supply chamber 11 can flow through the self-locking member 31 and the exhaust pipe 34 into the ink return chamber 21, and then flow into the ink return pipeline 300 of the inkjet printer. When the self-locking member 31 is in the blocked state, the passage between the ink supply chamber 11 and the exhaust pipe 34 is disconnected. At this time, the passage between the ink supply chamber 11 and the ink return chamber 21 is disconnected, and the ink and / or gas in the ink supply chamber 11 cannot flow through the self-locking member 31 and the exhaust pipe 34 into the ink return chamber 21.
[0029] By adopting the above technical solution, the exhaust pipe 34 can quickly and effectively discharge the excess gas, avoid the gas staying in the ink supply chamber 11, ensure that the flow of ink in the system is not interfered by bubbles, and help to improve the printing accuracy and quality; the self-locking member 31 can automatically close the passage between the ink supply chamber 11 and the ink return chamber 21 after the exhaust is completed, which can prevent the ink from directly flowing from the ink supply chamber 11 into the ink return chamber 21, effectively prevent the cross-contamination or unnecessary flow of ink, and ensure the stability of the ink supply system.
[0030] As Figure 3 shown, in some embodiments, the self-locking member 31 includes a main body portion 32 having a receiving cavity 321 and a self-locking portion 33 received in the receiving cavity 321. The main body portion 32 is connected to the exhaust pipe 34, and the self-locking portion 33 can move along the cavity wall of the receiving cavity 321.
[0031] The main body portion 32 is the main part of the self-locking member 31. The main body portion 32 is connected to the ink supply splitter 10, and one end of the main body portion 32 is in communication with the ink supply chamber 11, and the other end of the main body portion 32 is in communication with the exhaust pipe 34. The ink supply chamber 11 is connected to the ink return chamber 21 through the main body portion 32 and the exhaust pipe 34 in sequence.
[0032] The self-locking part 33 can cooperate with the main body part 32 to realize the connection or disconnection of the passage between the ink supply chamber 11 and the exhaust pipe 34. Preferably, the self-locking part 33 can be implemented as a floating ball. Specifically, the main body part 32 is provided with a receiving cavity 321, the self-locking part 33 is accommodated in the receiving cavity 321, and the self-locking part 33 can move between a communication position and a blocking position along the cavity wall of the receiving cavity 321 according to the liquid level height of the ink in the ink supply chamber 11. The communication position is a position that is not at the opening of the receiving cavity 321. When the liquid level of the ink is low, the self-locking member 31 moves to the communication position, and the passage between the ink supply chamber 11 and the exhaust pipe 34 is communicated. The ink and / or gas in the ink supply chamber 11 can flow from the ink supply chamber 11 through the main body part 32 and the exhaust pipe 34 into the ink return chamber 21 in sequence, as Figure 4 and Figure 5 shown. The blocking position is the position where the self-locking member 31 is located at the opening of the receiving cavity 321. When the liquid level of the ink is high, the self-locking member 31 moves to the blocking position, and the passage between the ink supply chamber 11 and the exhaust pipe 34 is blocked by the self-locking part 33. The ink and / or gas in the ink supply chamber 11 cannot flow from the ink supply chamber 11 through the main body part 32 and the exhaust pipe 34 into the ink return chamber 21 in sequence, as Figure 6 shown.
[0033] By adopting the above technical solution, as the exhaust process progresses, the self-locking part 33 can automatically rise or move in the receiving cavity 321 along with the liquid level height of the ink. And when the exhaust is completed, the self-locking part 33 moves to the position of tightly closing the opening of the receiving cavity 321, which can effectively close the channel with the exhaust pipe 34 and prevent ink backflow; in addition, the free movement and self-locking function of the self-locking member 31 in the receiving cavity 321 do not depend on complex electronic control or external operations, which can reduce the failure rate of the flow dividing device 100 and the printer.
[0034] As Figure 3 shown, in some embodiments, the receiving cavity 321 includes a first receiving sub-cavity 3211 and a second receiving sub-cavity 3212 connected to the first receiving sub-cavity 3211, and the self-locking part 33 is accommodated in the first receiving sub-cavity 3211. The first receiving sub-cavity 3211 is communicated with the ink supply chamber 11, the second receiving sub-cavity 3212 is communicated with the exhaust pipe 34, and the inner diameter of the first receiving sub-cavity 3211 is larger than the inner diameter of the second receiving sub-cavity 3212.
[0035] By adopting the above technical solution, the inner diameter of the first receiving sub-cavity 3211 is larger than the inner diameter of the second receiving sub-cavity 3212, which can limit the movement of the self-locking part 33, so that the self-locking part 33 only moves in the first receiving sub-cavity 3211 and will not move into the second receiving sub-cavity 3212, which helps to improve the stability of the flow dividing device 100.
[0036] In some embodiments, the outer diameter of the self-locking portion 33 is less than or equal to the inner diameter of the first receiving sub-cavity 3211 and greater than the inner diameter of the second receiving sub-cavity 3212. That is, the outer diameter of the self-locking portion 33 is between the inner diameter of the first receiving sub-cavity 3211 and the inner diameter of the second receiving sub-cavity 3212. When the self-locking portion 33 moves along the inner wall of the first receiving sub-cavity 3211, the upper limit position of the upward movement is the position where the first receiving sub-cavity 3211 is connected to the second receiving sub-cavity 3212 (the position of the mouth of the above-mentioned receiving cavity 321).
[0037] For example, as Figures 4 to 6 shown, the self-locking member 31 is a floating ball, and the outer diameter of the floating ball is less than the inner diameter of the first receiving sub-cavity 3211 and greater than the inner diameter of the second receiving sub-cavity 3212. In this way, the floating ball can only move within the first receiving sub-cavity 3211 and will not move into the second receiving sub-cavity 3212. Before inkjet printing, the ink supply chamber 11 is filled with gas, and the floating ball is in a lower communication position. The passage between the ink supply chamber 11 and the exhaust pipe 34 is in communication. As ink enters the ink supply chamber 11 along the ink supply pipeline 200 and the liquid level of the ink in the ink supply chamber 11 continuously rises, the gas in the ink supply chamber 11 is squeezed out by the ink and discharged from the ink supply chamber 11. The discharged gas flows through the first receiving sub-cavity 3211 and the second receiving sub-cavity 3212 of the self-locking member 31 and enters the exhaust pipe 34, and then enters the ink return chamber 21 through the exhaust pipe 34, and finally flows into the ink return pipeline 300 of the inkjet printer from the ink return chamber 21. When the amount of ink in the ink supply chamber 11 reaches a preset threshold value, the gas in the ink supply chamber 11 is basically discharged. At this time, the floating ball also moves to the position where the first receiving sub-cavity 3211 is connected to the second receiving sub-cavity 3212 following the rise of the liquid level, that is, the floating ball gradually moves to the blocking position. The floating ball in the blocking position disconnects the passage between the first receiving sub-cavity 3211 and the second receiving sub-cavity 3212, and the ink in the ink supply chamber 11 will not flow from the ink supply chamber 11 into the ink return chamber 21.
[0038] By adopting the above technical solution, the moving position of the self-locking portion 33 in the receiving cavity 321 can be further restricted, so that when the ink in the ink supply chamber 11 reaches a predetermined threshold value, the self-locking portion 33 is located at the connection position between the first receiving sub-cavity 3211 and the second receiving sub-cavity 3212, blocking the passage between the first receiving sub-cavity 3211 and the second receiving sub-cavity 3212.
[0039] As Figure 1 and Figure 2 shown, in some embodiments, in the first direction, the exhaust assembly 30 is located at the end of the ink supply splitter 10 and the ink return splitter 20. In the second direction perpendicular to the first direction, the exhaust assembly 30 does not coincide with the nozzle 400.
[0040] The first direction is the horizontal direction, and the second direction is the vertical direction. In the horizontal direction, the exhaust assembly 30 is disposed near the end of the flow splitting device 100. That is, in the horizontal direction, one end of the exhaust assembly 30 is disposed at the end of the ink supply splitter 10, and the other end of the exhaust assembly 30 is disposed at the end of the ink return splitter 20. Specifically, in the horizontal direction, the exhaust assembly 30 is closer to the end of the flow splitting device 100 than the nozzle 400. It should be noted that the exhaust assembly 30 can be disposed at either end of the two ends of the splitter in the first direction.
[0041] By adopting the above technical solution, the exhaust assembly 30 does not coincide with the nozzle 400, and the airflow during the exhaust process will not directly act on the nozzle 400 area, which can reduce the vibration or disorder caused by the exhaust process to the ink flow, ensure that the exhaust process does not directly interfere with the ink supply at the nozzle 400, avoid the influence of bubbles or airflow, and ensure the stability and accuracy of the inkjet process.
[0042] In some embodiments, the exhaust assembly 30 includes a first exhaust sub-component and a second exhaust sub-component. In the first direction, the first exhaust sub-component and the second exhaust sub-component are respectively disposed at both ends of the ink supply splitter 10 and the ink return splitter 20.
[0043] The structures of the first exhaust sub-component and the second exhaust sub-component are the same, except that they are disposed at different positions of the flow splitting device 100. Specifically, in the horizontal direction, the first exhaust sub-component is disposed at one end of the ink supply splitter 10 and the ink return splitter 20. That is, in the horizontal direction, one end of the first exhaust sub-component is connected to one end of the ink supply splitter 10, and the other end of the first exhaust sub-component is connected to one end of the ink return splitter 20. In the horizontal direction, the second exhaust sub-component is disposed at the other end of the ink supply splitter 10 and the ink return splitter 20. That is, in the horizontal direction, one end of the second exhaust sub-component is connected to the other end of the ink supply splitter 10, and the other end of the second exhaust sub-component is connected to the other end of the ink return splitter 20.
[0044] By adopting the above technical solution, by setting two exhaust sub-components, and respectively locating them at the two ends of the ink supply diverter 10 and the ink return diverter 20, the diverter device 100 can achieve more uniform and efficient exhaust, and each exhaust sub-component can effectively handle the airflow in a specific area, thereby avoiding local accumulation of airflow and improving the exhaust efficiency of the entire system; at the same time, by setting the first exhaust sub-component and the second exhaust sub-component, it can be ensured that when the diverter device 100 is installed at an angle, both ends of the diverter device 100 can still be fully exhausted, thereby avoiding printing defects caused by incomplete exhaust; in addition, the setting of the two exhaust sub-components can ensure that the airflow can be smoothly discharged from both ends of the ink supply diverter 10 and the ink return diverter 20, thereby avoiding uneven distribution of airflow in the system, and also avoiding the situation where only one exhaust sub-component fails and the exhaust cannot be exhausted, thereby helping to improve the stability of the separation device.
[0045] In some embodiments, the inkjet printer further includes a positive pressure device and a negative pressure device, the ink supply diverter 10 is connected to the positive pressure device, and the ink return diverter 20 is connected to the negative pressure device.
[0046] In this way, the ink supply chamber 11 maintains a positive pressure state, and the ink return chamber 21 maintains a negative pressure state. For example, the self-locking member 31 is a float. Before inkjet printing, the ink supply chamber 11 is filled with gas, the float is in a lower connection position, and the passage between the ink supply chamber 11 and the exhaust pipe 34 is connected. During printing, the ink supply chamber 11 is connected to the positive pressure device and is in a positive pressure state, and the ink return chamber 21 is connected to the negative pressure device and is in a negative pressure state. Ink flows into the ink supply chamber 11, and the gas in the ink supply chamber 11 is sucked into the ink return chamber 21 and transmitted to the ink return pipeline 300 of the inkjet printer. As the liquid level of the ink in the ink supply chamber 11 continues to rise, the gas in the ink supply chamber 11 is continuously sucked away, and the float gradually moves from the connection position to the blocking position as the liquid level rises. When the ink fills the entire ink supply chamber 11, the liquid level of the ink in the ink supply chamber 11 reaches the highest point, and the float presses against the connection position between the first accommodating sub-chamber 3211 and the second accommodating sub-chamber 3212 to close the passage between the ink supply chamber 11 and the ink return chamber 21. At this time, a vacuum is gradually formed in the ink return chamber 21. After printing is completed, or when the ink return instruction needs to be executed during printing, the liquid level of the ink in the ink supply diverter 10 gradually decreases and begins to take in air. The float loses the buoyancy of the ink, but the negative pressure of the ink return diverter 20 will suck the float, so that the float remains in the blocked position. When the inkjet printer is shut down and reset, the air pressure of the ink return diverter 20 is roughly the same as that of the ink supply diverter 10, and the ink return diverter 20 is no longer in a vacuum state, and the float moves from the blocked position to the connected position.
[0047] By adopting the above technical solution, the positive pressure device and the negative pressure device are connected to the ink supply and ink return diverter 20, so that the supply and recovery of ink can be more accurately controlled during the printing process, avoiding the phenomenon of too much or too little ink at the nozzle, and improving the printing quality.
[0048] like Figure 1 and Figure 2 As shown, in some embodiments, the diverter device 100 further includes an ink supply pressure sensor 40 and an ink return pressure sensor 50 , the ink supply pressure sensor 40 is connected to the ink supply diverter 10 , and the ink return pressure sensor 50 is connected to the ink return pressure sensor 50 .
[0049] By adopting the above-mentioned technical solution, the ink supply pressure sensor 40 and the ink return pressure sensor 50 can monitor the pressure changes in the ink supply and ink return systems in real time. By sensing the pressure fluctuations, they can make timely adjustments when the ink flow is not smooth or there is an abnormality, thereby ensuring the stability of ink supply and ink return during the printing process.
[0050] The present application also provides an inkjet printer, comprising an ink supply pipeline 200, an ink return pipeline 300 and a nozzle 400. The inkjet printer also includes the diversion device 100 in any of the above items.
[0051] In the inkjet printer provided in the embodiment of the present application, the diverter device 100 is provided with an ink supply diverter 10 and an ink return diverter 20, and an exhaust component 30 is used to connect the ink supply chamber 11 and the ink return chamber 21, so that the gas in the ink supply chamber 11 can be transmitted to the ink return chamber 21 through the exhaust component 30, which can simplify the structure of the nozzle 400, and can avoid printing defects such as bubbles, broken frames or light colors caused by gas retention in the inkjet system, thereby improving the printing stability of the inkjet printer. At the same time, by using the exhaust component 30 to separate the exhaust process from the inkjet process of the nozzle 400, the influence of the exhaust process on the nozzle 400 can be effectively reduced, further ensuring the stability of the printing process and the printing effect.
[0052] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A shunt device is applied to an inkjet printer. The inkjet printer includes an ink supply pipeline, an ink return pipeline, and a nozzle. It is characterized in that The shunt device includes: An ink supply shunt, the ink supply shunt having an ink supply chamber, the ink supply shunt being connected to the ink supply pipeline, and the nozzle being provided at the bottom of the ink supply chamber; An ink return shunt, the ink return shunt having an ink return chamber, the ink return shunt being connected to the ink return pipeline; An exhaust assembly, one end of the exhaust assembly being connected to the ink supply shunt, the other end of the exhaust assembly being connected to the ink return shunt, and the exhaust assembly communicating the ink supply chamber and the ink return chamber.
2. The flow splitting device according to claim 1, wherein, The exhaust assembly includes a self-locking member and an exhaust pipe connected to the self-locking member; One end of the self-locking member is connected to the ink supply shunt, the other end of the self-locking member is connected to the exhaust pipe, and the self-locking member can connect or disconnect the passage between the ink supply chamber and the exhaust pipe; One end of the exhaust pipe is connected to the self-locking member, and the other end of the exhaust pipe is connected to the ink return shunt.
3. The flow splitting device according to claim 2, characterized in that, The self-locking member includes a main body portion having a receiving cavity and a self-locking portion received in the receiving cavity. The main body portion is connected to the exhaust pipe, and the self-locking portion can move along the cavity wall of the receiving cavity.
4. The flow splitting device according to claim 3, wherein, The receiving cavity includes a first receiving sub-cavity and a second receiving sub-cavity connected to the first receiving sub-cavity, and the self-locking portion is received in the first receiving sub-cavity; The first receiving sub-cavity communicates with the ink supply chamber, the second receiving sub-cavity communicates with the exhaust pipe, and the inner diameter of the first receiving sub-cavity is larger than the inner diameter of the second receiving sub-cavity.
5. The flow splitting device according to claim 4, wherein, The outer diameter of the self-locking portion is less than or equal to the inner diameter of the first receiving sub-cavity and larger than the inner diameter of the second receiving sub-cavity.
6. The flow dividing device according to claim 1, wherein In a first direction, the exhaust assembly is located at the ends of the ink supply shunt and the ink return shunt. In a second direction perpendicular to the first direction, the exhaust assembly does not coincide with the nozzle.
7. The flow splitting device according to claim 6, characterized in that, The exhaust assembly includes a first exhaust sub-member and a second exhaust sub-member. In the first direction, the first exhaust sub-member and the second exhaust sub-member are respectively provided at both ends of the ink supply shunt and the ink return shunt.
8. The flow dividing device according to claim 1, wherein The inkjet printer further includes a positive pressure device and a negative pressure device. The ink supply shunt is connected to the positive pressure device, and the ink return shunt is connected to the negative pressure device.
9. The flow dividing device according to any one of claims 1-8, characterized in that, The shunt device further includes an ink supply pressure sensor and an ink return pressure sensor. The ink supply pressure sensor is connected to the ink supply shunt, and the ink return pressure sensor is connected to the ink return shunt.
10. An inkjet printer, comprising an ink supply pipeline, an ink return pipeline and a nozzle, characterized in that, The inkjet printer further includes the shunt device according to any one of claims 1-9.