Automatic ink adding device and printing equipment with same

Abstract

The utility model provides an automatic ink adding device and printing equipment with the same, the device comprises an ink box and a ball valve, ink is accommodated in the ink box, and the ball valve floats on the liquid level of the ink; the ball valve is connected with a connecting piece, one end, far away from the ball valve, of the connecting piece is connected with a valve, and the valve is periodically opened or closed along with lifting of the liquid level; an automatic stirring assembly is arranged in the printing ink box and used for stirring printing ink in the printing ink box. When the amount of ink in the ink box is small, the height of the ball valve floating on the ink liquid level is low, the connecting piece is separated from the valve, external ink flows into the ink box from the valve, and the ink is supplemented into the ink box. When the amount of ink in the ink box is large, the height of the ball valve floating on the liquid level of the ink is large, the valve is blocked by the connecting piece, and external ink cannot flow into the ink box from the valve. When the valve is closed, the automatic stirring assembly stirs the printing ink in the printing ink box, so that the uniformity of the printing ink is improved.

Description

Technical Field

[0001] This utility model relates to the field of ink adding device technology, and in particular to an automatic ink adding device and a printing equipment having the same. Background Technology

[0002] The ink cartridge is a key component of printing equipment, responsible for storing and supplying ink to the printing press. During use, the operator must first pour the ink into the cartridge from the edge of the ink outlet and manually stir it to ensure that the ink is evenly and appropriately applied to the printing medium by the rollers.

[0003] During printing equipment operation, manual addition, stirring, and replacement of ink are required. This process may result in ink splattering onto the power cord, causing spots and affecting quality. Furthermore, a learning curve is required to master this operation, posing a significant safety hazard. When using ink cartridges, manual adjustment of ink uniformity and printing pressure is also necessary to ensure print quality. Existing ink cartridges rely on manual stirring, which is difficult to control in terms of uniformity and ink dosage. In addition, manual operation presents inherent quality risks and safety hazards.

[0004] Therefore, there is a need for an automatic ink-adding device that can automatically stir and control the amount of ink added, thereby eliminating the quality hazards and safety risks associated with manual ink addition. Utility Model Content

[0005] To overcome the problems existing in related technologies, the purpose of this utility model is to provide an automatic ink adding device and a printing equipment having the same, wherein the automatic ink adding device can automatically stir and automatically control the amount of ink added, thereby eliminating potential quality problems and safety risks.

[0006] An automatic ink dispensing device includes an ink tank and a ball valve. The ink tank contains ink, and the ball valve floats on the surface of the ink. The ball valve is connected to a connector, and a valve is connected to the end of the connector away from the ball valve. As the ink level rises and falls, the ball valve periodically opens or closes the valve through the connector. An automatic stirring assembly is provided inside the ink tank to stir the ink in the ink tank.

[0007] When the ink level in the ink tank is low, the ink level is low, and the ball valve floating on the ink surface is also low, with the connector separated from the valve, meaning the valve is open. External ink flows into the ink tank through the valve, replenishing the ink supply. When the ink level in the tank is high, the ink level is high, and the ball valve floating on the ink surface is also high. The connector blocks the valve, meaning the valve is closed, preventing external ink from flowing into the tank. When the valve is closed, the automatic stirring component agitates the ink in the tank, making the ink more uniform. This device automatically stirs the ink and periodically opens and closes the valve according to the ink level in the tank, automatically controlling the amount of ink added and eliminating the quality and safety risks associated with manual ink addition.

[0008] In a preferred embodiment of this invention, a pipe is connected to the side wall of the ink tank, and the pipe is connected to the ink tank to guide ink into the ink tank.

[0009] Pipes are used to connect the external ink storage structure and the ink tank. Pipes form an ink supply channel, allowing ink from outside the ink tank to flow into the ink tank through the pipes.

[0010] In a preferred embodiment of this invention, the end of the pipe furthest from the ink tank is connected to an ink container, which contains ink, and the ink flows from the ink container into the pipe.

[0011] The pipe and the ink tank can be connected by a threaded interface. The ink outlet of the ink tank and one end of the pipe are respectively machined with matching external and internal threads, and the connection is achieved by tightening the threads.

[0012] In a preferred embodiment of this invention, the end of the pipe near the ink tank is connected to the valve, which is used to open or close the pipe to control the periodic flow of ink into the ink tank.

[0013] When the valve is open, the ink tank and the ink container are connected, and the ink in the ink container flows into the ink tank through the pipe to replenish the ink in the ink tank; when the valve is closed, the ink tank and the ink container are not connected, and the ink in the ink container cannot flow into the ink tank through the pipe.

[0014] In a preferred embodiment of this invention, a stirring hole is provided on the top of the ink tank, the stirring hole is connected to the interior of the ink tank, and the automatic stirring component is inserted into the stirring hole and enters the interior of the ink tank.

[0015] The stirring hole is used to install an automatic stirring assembly. One end of the automatic stirring assembly extends below the ink level in the ink tank, and this end is used to achieve uniform stirring of the ink.

[0016] In a preferred embodiment of this invention, the automatic stirring assembly includes a stirring rod and a motor. The stirring rod is inserted below the surface of the ink through the stirring hole. The first end of the stirring rod is submerged below the surface of the ink, and the second end of the stirring rod is connected to the output shaft of the motor.

[0017] The shape of the stirring hole is the same as the cross-sectional shape of the stirring rod, preferably circular. The circular stirring hole facilitates the installation and operation of the stirring rod, which is inserted into the ink tank through the stirring hole. After insertion, the first end of the stirring rod is submerged below the ink surface, directly contacting the ink and thus effectively stirring it. This design ensures that the stirring rod can perform thorough mixing operations across the entire lower layer of the ink, avoiding uneven ink composition due to inadequate stirring.

[0018] In a preferred embodiment of this invention, the connecting member includes a connecting rod and a sealing part. The first end of the connecting rod is connected to the ball valve, and the second end of the connecting rod is connected to the sealing part. The sealing part is adapted to the valve and is used to periodically seal the valve.

[0019] The connecting rod connects the sealing part and the ball valve. The sealing part is adapted to the valve and is used to periodically open or close the valve. When the ball valve descends with the ink level, the sealing part gradually disengages from the valve, and the valve opening gradually increases until the valve is fully open, at which point the ink in the ink tank flows into the ink box. When the ball valve rises with the ink level, the sealing part gradually inserts into the valve, and the valve opening gradually decreases until the valve is fully closed, at which point the ink in the ink tank cannot flow into the ink box.

[0020] In a preferred embodiment of this invention, the sealing part is a sealing sheet, and both the sealing sheet and the valve are circular or regular polygonal.

[0021] If both the sealing plate and the valve are circular, the resistance encountered by the sealing plate when it is inserted into the valve can be reduced, thereby reducing valve wear and increasing valve service life. If both the sealing plate and the valve are regular polygonal, the force on the sealing plate when it is inserted into the valve can be even, improving the sealing effect.

[0022] In a preferred embodiment of this invention, the side wall of the ink tank is provided with a mounting hole for mounting the ink tank.

[0023] The ink cartridge is mounted on the printing press by inserting screws into the mounting holes on the side wall of the ink cartridge and the screw holes on the printing press. The ink cartridge is used to supply ink to the printing press.

[0024] This utility model also provides a printing device, including the above-mentioned automatic ink adding device.

[0025] The beneficial effects of this utility model are as follows:

[0026] This invention provides an automatic ink-adding device, including an ink tank and a ball valve. The ink tank contains ink, and the ball valve floats on the surface of the ink. The ball valve is connected to a connector, and the end of the connector away from the ball valve is connected to a valve. As the ink level rises and falls, the ball valve periodically opens or closes the valve via the connector. An automatic stirring component is installed inside the ink tank to stir the ink. When the ink level is low, the ink level is low, and the ball valve floating on the surface is also low. The connector is separated from the valve, meaning the valve is open, and external ink flows into the ink tank from the valve, replenishing the ink. When the ink level is high, the ink level is high, and the ball valve floating on the surface is also high. The connector blocks the valve, meaning the valve is closed, preventing external ink from flowing into the ink tank. When the valve is closed, the automatic stirring component stirs the ink in the tank, making the ink more uniform. The above-mentioned device can automatically stir the ink and periodically open and close the valve according to the amount of ink in the ink tank to automatically control the amount of ink added, thereby eliminating the quality hazards and safety risks caused by manual ink addition. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the automatic ink dispensing device of this utility model;

[0028] Figure 2 This is a front view of the automatic ink dispensing device of this utility model;

[0029] Figure 3 This is a top view of the automatic ink dispensing device of this utility model.

[0030] Reference numerals: 1. Ink tank; 2. Ball valve; 3. Connector; 4. Valve; 5. Pipe; 6. Ink container; 7. Stirring hole; 8. Stirring rod; 9. Motor; 10. Sealing plate; 11. Mounting hole. Detailed Implementation

[0031] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0032] Example 1

[0033] like Figures 1-3 As shown, this embodiment provides an automatic ink adding device, including an ink tank 1 and a ball valve 2. The ink tank 1 contains ink, and the ball valve 2 floats on the surface of the ink. The ball valve 2 is connected to a connector 3, and a valve 4 is connected to the end of the connector 3 away from the ball valve 2. As the liquid level rises and falls, the ball valve periodically opens or closes the valve 4 through the connector. An automatic stirring assembly is provided inside the ink tank 1 to stir the ink in the ink tank 1.

[0034] The ink tank 1 contains ink with a certain ink level, and a ball valve 2 floats on the ink surface. The ball valve 2 is subject to gravity and buoyancy provided by the ink. When external ink flows into the ink tank 1 through the valve 4, the ink level rises; when external ink flows into the ink tank 1 without passing through the valve 4, the ink level remains unchanged.

[0035] When the ink level in ink tank 1 is low, the amount of ink is small, and ball valve 2 is positioned low within ink tank 1. Connector 3, which is connected to ball valve 2, is disconnected from valve 4, meaning valve 4 is open. At this time, external ink flows into ink tank 1 through valve 4, replenishing the ink supply. When the ink level in ink tank 1 is high, the amount of ink is large, and ball valve 2 is positioned high within ink tank 1. Connector 3, which is connected to ball valve 2, blocks valve 4, meaning valve 4 is closed. At this time, external ink cannot flow into ink tank 1 through valve 4, and the ink level in ink tank 1 remains unchanged.

[0036] The automatic stirring component extends into the ink tank 1. When the valve 4 is closed, the automatic stirring component is activated to stir the ink in the ink tank 1, thereby improving the uniformity of the ink in the ink tank 1, preventing the ink from accumulating in certain areas of the ink tank 1, and avoiding the formation of spherical ink droplets due to the surface tension of the liquid ink, which would result in a poor printing effect.

[0037] Connector 3 extends from the end connected to ball valve 2 towards valve 4. Connector 3 can be a rod-shaped structure or other structures, which are not limited here. The first end of connector 3 is connected to ball valve 2, and the second end of connector 3 is adapted to valve 4. When the ink level in ink tank 1 rises, ball valve 2 rises with the ink level until the second end of connector 3 is inserted into valve 4, blocking valve 4.

[0038] The automatic ink-adding device of this invention automatically opens valve 4 when the ink level in ink tank 1 is low, allowing external ink to flow into ink tank 1. Conversely, it automatically closes valve 4 when the ink level in ink tank 1 is high, preventing external ink from flowing into ink tank 1.

[0039] This embodiment provides an automatic ink-adding device, including an ink tank 1 and a ball valve 2. The ink tank 1 contains ink, and the ball valve 2 floats on the surface of the ink. The ball valve 2 is connected to a connector 3, and the end of the connector 3 away from the ball valve 2 is connected to a valve 4. As the ink level rises and falls, the ball valve periodically opens or closes the valve 4 via the connector. An automatic stirring assembly is installed inside the ink tank 1 to stir the ink within it. When the amount of ink in the ink tank 1 is low, the ink level is low, and the ball valve 2 floating on the ink surface is also low. The connector 3 is separated from the valve 4, meaning the valve 4 is open, and external ink flows into the ink tank 1 through the valve 4, replenishing the ink. When the amount of ink in the ink tank 1 is high, the ink level is high, and the ball valve 2 floating on the ink surface is also high. The connector 3 blocks the valve 4, meaning the valve 4 is closed, and external ink cannot flow into the ink tank 1 through the valve 4. When valve 4 is closed, the automatic stirring component stirs the ink in ink tank 1, making the ink in ink tank 1 more uniform. Using this device, the ink can be automatically stirred, and valve 4 is periodically opened and closed according to the amount of ink in ink tank 1, thereby automatically controlling the amount of ink added and eliminating the quality hazards and safety risks associated with manual ink addition.

[0040] Example 2

[0041] like Figures 1-3 As shown, this embodiment provides an automatic ink adding device, including an ink tank 1 and a ball valve 2. The ink tank 1 contains ink, and the ball valve 2 floats on the surface of the ink. The ball valve 2 is connected to a connector 3, and a valve 4 is connected to the end of the connector 3 away from the ball valve 2. As the liquid level rises and falls, the ball valve periodically opens or closes the valve 4 through the connector. An automatic stirring assembly is provided inside the ink tank 1 to stir the ink in the ink tank 1.

[0042] The side wall of the ink tank 1 is connected to a pipe 5, which is connected to the ink tank 1 and is used to guide ink into the ink tank 1.

[0043] The end of the pipe 5 away from the ink tank 1 is connected to an ink container 6, which contains ink. The ink flows from the ink container 6 into the pipe 5.

[0044] The end of the pipe 5 near the ink tank 1 is connected to the valve 4. The valve 4 is used to open or close the pipe 5 to control the pipe 5 to periodically draw ink into the ink tank 1.

[0045] The pipe 5 and ink tank 6 can be connected via a threaded interface. The ink outlet of ink tank 6 and one end of pipe 5 are respectively machined with matching external and internal threads, and the connection is achieved by tightening the threads. Alternatively, pipe 5 and ink tank 6 can be connected via flanges. Flanges are installed at the connection ends of pipe 5 and ink tank 6, and the two flanges are tightly connected together with bolts, with a sealing gasket placed between the flanges. Furthermore, the connection between pipe 5 and ink container 1 can be either a threaded connection or a flange connection to achieve stable ink delivery.

[0046] The pipe 5 connecting the ink tank 1 and the ink container 6 has a certain curvature. The height of the ink tank 1 is greater than the height of the ink container 6. The first end of the pipe 5 is connected to the ink tank 1, and the second end of the pipe 5 is connected to the ink container 6. The height of the first end of the pipe 5 is greater than the height of the second end of the pipe 5. The second end of the pipe 5 is always connected to the ink container 6. When the ink pump is working, the ink in the ink container 6 can be drawn into the pipe 5 by the ink pump. When the ink pump is not working, the ink in the pipe 5 can also flow back into the ink container 6 under the action of gravity.

[0047] A valve 4 is connected to the first end of pipe 5. Valve 4 controls the opening and closing of pipe 5. When valve 4 controls pipe 5 to be open, i.e., when the first end of pipe 5 is connected to ink tank 1, an ink pump draws ink from ink container 6 into pipe 5, and then from pipe 5 into ink tank 1. Using the ink pump, ink can be continuously drawn into ink tank 1 through pipe 5, ensuring a sufficient supply of ink in ink tank 1. This not only guarantees stable ink delivery but also makes the entire printing process smoother and more efficient. When valve 4 controls pipe 5 to be closed, i.e., when the first end of pipe 5 is no longer connected to ink tank 1, ink stops flowing from pipe 5 into ink tank 1, effectively preventing ink from continuing to be injected into ink tank 1 and preventing ink overflow that could cause waste or unnecessary pollution.

[0048] In this embodiment, a pipe 5 is connected to the side wall of the ink tank 1, and the pipe 5 communicates with the ink tank 1, guiding ink into the ink tank 1. An ink container 6 is connected to the end of the pipe 5 furthest from the ink tank 1, and the ink container 6 contains ink, which flows into the pipe 5. A valve 4 is connected to the end of the pipe 5 closest to the ink tank 1, and the valve 4 is used to open or close the pipe 5 to control the periodic flow of ink into the ink tank 1. Before use, the operator fills the ink container 6 with sufficient ink, accurately proportioning the specific gravity of each liquid component according to the printing process requirements to ensure that the ink performance meets printing standards. After proportioning, the valve 4 on the pipe 5 is opened, and the ink pump is started simultaneously. The ink pump draws ink from the ink container 6 through the pipe 5 and delivers it to the ink tank 1. The entire process is highly automated, easy to operate, effectively improves work efficiency, and ensures the stability of ink supply.

[0049] Example 3

[0050] like Figures 1-3 As shown, this embodiment provides an automatic ink adding device, including an ink tank 1 and a ball valve 2. The ink tank 1 contains ink, and the ball valve 2 floats on the surface of the ink. The ball valve 2 is connected to a connector 3, and a valve 4 is connected to the end of the connector 3 away from the ball valve 2. As the liquid level rises and falls, the ball valve periodically opens or closes the valve 4 through the connector. An automatic stirring assembly is provided inside the ink tank 1 to stir the ink in the ink tank 1.

[0051] The top of the ink tank 1 is provided with a stirring hole 7, which is connected to the inside of the ink tank 1. The automatic stirring component is inserted into the stirring hole 7 and enters the inside of the ink tank 1.

[0052] The automatic stirring assembly includes a stirring rod 8 and a motor 9. The stirring rod 8 is inserted below the surface of the ink through the stirring hole 7. The first end of the stirring rod 8 is submerged below the surface of the ink, and the second end of the stirring rod 8 is connected to the output shaft of the motor 9.

[0053] A stirring hole 7 is specially designed on the top of the ink tank 1. The shape of the stirring hole 7 is the same as the cross-sectional shape of the stirring rod 8, and both are preferably circular. The circular stirring hole 7 provides convenience for the installation and operation of the stirring rod 8. The stirring rod 8 is inserted into the ink tank 1 through the stirring hole 7.

[0054] After the stirring rod 8 is inserted into the stirring hole 7, its first end is submerged below the surface of the ink, directly contacting the ink and thus effectively stirring it. This design ensures that the stirring rod 8 can perform thorough mixing operations across the entire lower layer of the ink, avoiding uneven ink composition due to inadequate stirring.

[0055] Motor 9 is the power source for the entire mixing device, and its performance directly determines the mixing effect. Motor 9 transmits power to the stirring rod 8 through its output shaft, driving the stirring rod 8 to rotate in the ink. The rotational speed of motor 9 can be adjusted according to the viscosity of the ink, mixing requirements, and process requirements, thereby achieving precise control of the mixing speed.

[0056] The ink tank 1 in this embodiment has a stirring hole 7 on its top, which communicates with the interior of the ink tank 1. The automatic stirring assembly is inserted into the ink tank 1 through the stirring hole 7. The automatic stirring assembly includes a stirring rod 8 and a motor 9. The stirring rod 8 is inserted below the surface of the ink through the stirring hole 7. The first end of the stirring rod 8 is submerged below the surface of the ink, and the second end of the stirring rod 8 is connected to the output shaft of the motor 9. The stirring hole 7 on the top of the ink tank 1 is used to install the automatic stirring assembly to achieve uniform stirring of the ink. The automatic stirring assembly includes a stirring rod 8 and a motor 9. The stirring rod 8 is inserted below the surface of the ink through the stirring hole 7 to ensure direct stirring of the ink. The first end of the stirring rod 8 is submerged below the surface of the ink for direct contact and stirring of the ink, while the second end of the stirring rod 8 is connected to the output shaft of the motor 9. The rotation of the motor 9 drives the stirring rod 8 to rotate, thereby achieving continuous stirring of the ink. The coordinated operation of motor 9 and stirring rod 8 ensures that the ink is always uniformly mixed in ink tank 1, avoiding the impact on printing quality due to the precipitation or separation of ink components. At the same time, it greatly improves the convenience of operation and stirring efficiency, reduces manual intervention, and enhances the automation level of the entire device.

[0057] Example 4

[0058] like Figures 1-3 As shown, this embodiment provides an automatic ink adding device, including an ink tank 1 and a ball valve 2. The ink tank 1 contains ink, and the ball valve 2 floats on the surface of the ink. The ball valve 2 is connected to a connector 3, and a valve 4 is connected to the end of the connector 3 away from the ball valve 2. As the liquid level rises and falls, the ball valve periodically opens or closes the valve 4 through the connector. An automatic stirring assembly is provided inside the ink tank 1 to stir the ink in the ink tank 1.

[0059] The connector 3 includes a connecting rod and a sealing part. The first end of the connecting rod is connected to the ball valve 2, and the second end of the connecting rod is connected to the sealing part. The sealing part is adapted to the valve 4 and is used to periodically seal the valve 4.

[0060] The sealing part is a sealing sheet 10, and both the sealing sheet 10 and the valve 4 are circular.

[0061] The ink tank 1 has a mounting hole 11 on its side wall, which is used to mount the ink tank 1.

[0062] The connecting rod is angled, with its first end fixedly, detachably, or integrally formed with the ball valve 2, and its second end fixedly or detachably connected to the sealing plate 10. The sealing plate 10 has the same shape as the valve 4; it can be circular or a regular polygon, without limitation. If both the sealing plate 10 and the valve 4 are circular, it reduces the resistance encountered when the sealing plate 10 is inserted into the valve 4, thereby reducing wear on the valve 4 and extending its service life. If both the sealing plate 10 and the valve 4 are regular polygons, it ensures uniform force distribution when the sealing plate 10 is inserted into the valve 4, improving the sealing effect.

[0063] Screws are inserted into the mounting holes 11 on the side wall of ink tank 1 and the screw holes on the printing press, thereby mounting ink tank 1 on the printing press. Ink tank 1 is used to supply ink to the printing press.

[0064] Preferably, an oil pump is installed inside the ink tank 1, and valve 4 of the ink tank 1 is connected to the ink container 6. As the number of printing cycles increases, the ink consumption in the ink tank 1 increases, and the ink level in the ink tank 1 gradually decreases. This causes ball valve 2 to gradually descend, opening valve 4. With valve 4 open, the oil pump inside the ink tank 1 is activated, drawing external ink into the ink tank 1 to replenish the ink level.

[0065] By combining the ball valve 2, connecting rod, and sealing plate 10 inside the ink tank 1, ink can be automatically added to the ink tank 1 when the amount of ink in the ink tank 1 is low, without the need for manual operation. This reduces the cost of adding ink while improving the efficiency of adding ink.

[0066] The connector 3 in this embodiment includes a connecting rod and a sealing part. The first end of the connecting rod is connected to the ball valve 2, and the second end of the connecting rod is connected to the sealing part. The sealing part is adapted to the valve 4 and is used to periodically seal the valve 4. The sealing part is a sealing plate 10, and both the sealing plate 10 and the valve 4 are circular or regular polygonal. If both the sealing plate 10 and the valve 4 are circular, it can reduce the resistance encountered by the sealing plate 10 when inserted into the valve 4, thereby reducing the wear of the valve 4 and increasing its service life. If both the sealing plate 10 and the valve 4 are regular polygonal, it can ensure that the sealing plate 10 is subjected to uniform force when inserted into the valve 4, improving the sealing effect.

[0067] Example 5

[0068] This embodiment provides a printing apparatus, including the automatic ink-adding device described in any one of embodiments 1-4. This embodiment also provides a method for automatically adding ink, based on the automatic ink-adding device of any one of embodiments 1-4, the method being applied to the printing apparatus of this embodiment, the method comprising:

[0069] S1: The ink level in the ink tank gradually decreases, the ball valve gradually descends, and the ball valve drives the valve to gradually open.

[0070] S2: The ink in the ink bucket flows into the ink tank through the pipe.

[0071] S3: The ink level in the ink tank gradually rises, the ball valve gradually rises, and the ball valve drives the valve to gradually close.

[0072] S4: When the valve is fully closed, the ink remains inside the pipe.

[0073] The automatic ink-adding device of the printing equipment starts execution from step S1, then executes steps S2 and S3 sequentially, and finally executes step S4. After completing step S4, the automatic ink-adding device returns to step S1 and executes steps S1-S4 again. During this process, no manual operation is required, enabling automatic ink addition, reducing costs, and improving processing efficiency.

[0074] In addition, since the automatic ink adding device in this embodiment relies on the buoyancy provided by the ink to the ball valve 2 and the connection relationship between the ball valve 2 and the connecting rod to automatically open or close the valve 4, it is not necessary to install an ink height sensor in the ink tank 1, thus ensuring the space utilization rate of the ink tank 1.

[0075] The automatic ink-adding method in this embodiment automatically adds ink to ink tank 1 based on the remaining ink level. During the printing process, the ink in ink tank 1 gradually decreases, the ink level gradually drops, and ball valve 2 gradually descends, causing the connecting rod to rotate in a first direction (clockwise in this embodiment). As the connecting rod rotates clockwise, valve 4 gradually opens, allowing ink to flow from ink container 6 into ink tank 1. During ink replenishment, the ink in ink tank 1 gradually increases, the ink level gradually rises, and ball valve 2 gradually rises, causing the connecting rod to rotate in a second direction (counterclockwise in this embodiment). As the connecting rod rotates counterclockwise, valve 4 gradually closes until it is completely closed, at which point ink in ink container 6 cannot flow into ink tank 1 through pipe 5.

[0076] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this application. Any specific values ​​in all examples shown and discussed herein should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0077] It should be understood that spatial relative terms are intended to encompass different orientations of a device in use or operation, in addition to the orientation described in the figures. For example, if a device in the figures is inverted, a device described as "above" or "on top of" other devices or structures will subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0078] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0079] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic ink adding device characterized by comprising: The ink tank is provided with ink, and the ball valve floats on the liquid surface of the ink. The ball valve is connected with a connecting piece, and the connecting piece is connected with a valve at one end away from the ball valve. The ball valve periodically opens or closes the valve through the connecting piece with the rise and fall of the liquid surface. The ink tank is provided with an automatic stirring assembly for stirring the ink in the ink tank.

2. The automatic ink adding device according to claim 1, characterized in that, A pipeline is connected with the side wall of the ink tank, and the pipeline communicates with the ink tank. The pipeline is used to drain ink into the ink tank.

3. The automatic ink adding device according to claim 2, characterized in that, An ink barrel is connected with the pipeline at one end away from the ink tank. The ink barrel is provided with ink, and the ink flows from the ink barrel into the pipeline.

4. The automatic ink adding device according to claim 2, characterized in that, The pipeline is connected with the valve at one end close to the ink tank. The valve is used to open or close the pipeline to control the pipeline to periodically drain ink into the ink tank.

5. The automatic ink adding device according to claim 1, wherein A stirring hole is formed in the top of the ink tank, and the stirring hole communicates with the inside of the ink tank. The automatic stirring assembly is inserted into the inside of the ink tank through the stirring hole.

6. The automatic ink adding device according to claim 5, characterized in that The automatic stirring assembly includes a stirring rod and a motor. The stirring rod is inserted below the liquid surface of the ink through the stirring hole. The first end of the stirring rod is immersed below the liquid surface of the ink, and the second end of the stirring rod is connected with the output shaft of the motor.

7. The automatic ink adding device of claim 1, wherein The connecting piece includes a connecting rod and a sealing part. The first end of the connecting rod is connected with the ball valve, and the second end of the connecting rod is connected with the sealing part. The sealing part is adapted to the valve, and the sealing part is used to periodically seal the valve.

8. The automatic ink adding device according to claim 7, characterized in that, The sealing part is a sealing sheet, and the sealing sheet and the valve are circular or regular polygonal.

9. The automatic ink adding device of claim 1, wherein, An installation hole is formed in the side wall of the ink tank, and the installation hole is used to install the ink tank.

10. A printing apparatus characterized by comprising: The automatic ink adding device includes the automatic ink adding device according to any one of claims 1-9.

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