Ink stack and printing equipment

Abstract

The utility model discloses an ink stack and printing equipment, the ink stack comprises an ink pad assembly, a maintenance base air pump and a vent pipe, and the ink pad assembly is provided with an adsorption tank used for adsorbing a nozzle; the ink pad assembly is installed on the maintenance base. The air pump communicates with the adsorption tank through an exhaust pipe; the vent pipe is connected to the exhaust pipe and used for communicating the exhaust pipe with the atmosphere. The ink pad assembly can be used for adsorbing the nozzle, and the vent pipe can be used for releasing pressure of the adsorption tank, so that the acting force borne by the nozzle can be conveniently controlled, and the possibility that the nozzle is damaged due to too large adsorption pressure or pressure change is reduced.

Description

Technical Field

[0001] This application relates to the technical field of printing devices, and particularly to an ink stack and a printing device. Background Art

[0002] The ink stack of a printing device can moisturize and protect the printer nozzles. A negative pressure device is usually connected to the ink stack, and the negative pressure device can be used to form a negative pressure environment at a preset position of the ink stack; when the nozzles reach the preset position of the ink stack, suction is performed through the negative pressure device, and the negative pressure device can suck away the ink or other dirt on the nozzles, reducing the possibility of clogging caused by ink condensation on the surface of the nozzles. When the negative pressure device is operating, if the negative pressure suction force on the nozzles is unstable or the adsorption force is too large, the nozzles are likely to be damaged. Summary of the Utility Model

[0003] This application provides an ink stack and a printing device, aiming to improve the problem that the ink stack is likely to cause damage to the nozzles.

[0004] To achieve the above technical effects, a technical solution adopted in this application is: providing an ink stack for a printing device, the printing device having nozzles, the ink stack including:

[0005] A maintenance base;

[0006] An ink pad assembly installed on the maintenance base, the ink pad assembly having an adsorption groove for adsorbing the nozzles;

[0007] An air pump, the air pump being connected to the adsorption groove through an extraction pipe; and

[0008] A ventilation pipe connected to the extraction pipe, the ventilation pipe being used to connect the extraction pipe to the atmosphere.

[0009] In the example of this application, the ink pad assembly can be used to adsorb the nozzles, and the ventilation pipe can be used to relieve the pressure in the adsorption groove, thereby facilitating the control of the force exerted on the nozzles and reducing the possibility of damage to the nozzles due to excessive adsorption pressure or pressure change.

[0010] Wherein, the ink stack further includes:

[0011] A main control board electrically connected to the air pump, the main control board being used to obtain the working signal of the air pump;

[0012] An airtight member used to control the opening or closing of the ventilation pipe, the airtight member being electrically connected to the main control board, and the main control board is further used to control the operation of the airtight member according to the working signal of the air pump.

[0013] Wherein, the airtight member includes:

[0014] A plug having an open position for opening the ventilation pipe and a closed position for closing the ventilation pipe; and

[0015] The first driving component is connected to the plug. The main control board is electrically connected to the first driving component. The main control board is used to control the movement of the first driving component to drive the plug to move between an open position and a closed position.

[0016] Among them, the ink stack also includes:

[0017] a wiper blade assembly having a first position and a second position, the wiper blade assembly being movably connected to the ink pad assembly between the first position and the second position; and

[0018] The second connecting member is connected to the scraper assembly; the output end of the first driving assembly is also drivingly connected to the second connecting member, and the first driving assembly is also used to drive the second connecting member to drive the scraper assembly to move between the first position and the second position.

[0019] The first driving assembly is used to drive the scraper assembly to move from the second position to the first position; the ink stack also includes:

[0020] The first restoring member has one end connected to the ink pad assembly and the other end connected to the second connecting member or the scraper assembly. The first restoring member is used to generate a force for the scraper assembly to move from the first position to the second position.

[0021] The ink pad assembly is at least partially disposed on one side of the maintenance base along a first direction, and the adsorption groove is located on a side of the ink pad assembly away from the maintenance base along the first direction, and the first direction is a vertical direction;

[0022] One of the ink pad assembly and the maintenance base is provided with a guide groove, and the other is provided with a guide rod, and the guide rod can be slidably inserted in the guide groove between the adsorption position and the release position; the guide groove has a front end and a rear end that are relatively arranged, and the angle between the connecting line of the front end and the rear end and the first direction is not less than 0° and not more than 90°.

[0023] The ink pad assembly includes:

[0024] an ink pad holder movably connected to the maintenance base between an absorption position and a release position; and

[0025] The ink absorption module is connected to the side of the ink pad seat away from the maintenance base; the ink absorption module is formed with an adsorption groove.

[0026] The ink absorption module is detachably connected to the ink pad seat.

[0027] The ink pad assembly further comprises:

[0028] The guiding member includes a first part and a second part; the first part is connected to the outer wall of the ink pad base and extends away from the ink pad base in the second direction; one end of the second part is connected to the end of the first part away from the ink pad base, and the other end protrudes towards the side of the ink pad base close to the adsorption groove in the first direction; the second part is used to abut against the side wall of the inkjet head in the second direction to drive the ink pad assembly to move from the release position to the adsorption position; the second direction is set at an angle to the first direction.

[0029] Wherein, the ink stack further includes:

[0030] A second reset member, one end of which is connected to the maintenance base and the other end is connected to the ink absorption module, and the second reset member is used to generate a force for moving the ink absorption module from the adsorption position to the release position.

[0031] Wherein, the ink absorption module includes:

[0032] A mounting seat, which is connected to the ink pad base;

[0033] An ink pad main body, which is connected to the mounting seat;

[0034] An adsorption structure, which is arranged in the mounting seat; and

[0035] An ink pad sealing ring, which is connected to the ink pad main body and surrounds the periphery of the adsorption structure; the ink pad sealing ring and the adsorption structure enclose to form an adsorption groove.

[0036] The present application also provides an example of a printing device, including:

[0037] A host computer;

[0038] An inkjet head, which is connected to the host computer; and

[0039] An ink stack as in any of the above examples, and the maintenance base of the ink stack is connected to the host computer. Description of the Drawings

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0041] Figure 1 It is a schematic structural diagram of an example of the printing device of the present application;

[0042] Figure 2 It is a top view of an example of the ink stack of the present application;

[0043] Figure 3 It is a schematic structural diagram of another example of the ink stack of the present application;

[0044] Figure 4 It is a schematic diagram of a module of an ink stack control system of the present application;

[0045] Figure 5 It is a schematic structural diagram of an ink pad assembly of the present application;

[0046] Figure 6 It is a schematic diagram of a control method of a plug of the present application;

[0047] Figure 7 It is a schematic structural diagram of a maintenance base of the present application;

[0048] Figure 8 It is a schematic structural diagram of a wiper blade assembly of the present application;

[0049] Figure 9 It is a left view of an example of the wiper blade assembly of the present application.

[0050] Wherein: 10, host computer; 20, nozzle;

[0051] 30, ink stack; 31, maintenance base; 311, guide groove; 3111, front end; 3112, rear end;

[0052] 32, ink pad assembly; 321, adsorption groove; 322, ink pad seat; 3221, guide member; 3222, first part; 3223, second part; 3224, guide wheel; 3225, avoidance groove; 3226, first rotating shaft; 3227, foam holder; 3228, foam; 323, ink absorption module; 3231, mounting seat; 3232, ink pad main body; 3233, ink pad sealing ring; 3234, adsorption structure; 3235, ink absorption foam; 3236, ink pad filter screen; 324, guide rod; 33, buckle; 34, card slot;

[0053] 33, air permeable pipe;

[0054] 34, airtight member; 341, plug; 342, first driving component; 343, driving module; 344, first connecting member; 3441, first end; 3442, second end;

[0055] 35, wiper blade assembly; 351, wiper blade bracket; 352, wiper blade main body; 353, second connecting member; 354, first reset member;

[0056] 36, second driving component; 361, third connecting member;

[0057] 37, second reset member;

[0058] 38, air pump; 381, suction pipe;

[0059] 39. Main control board; 391. Air pressure detection module;

[0060] a. First direction; b. Second direction. Specific implementation manner

[0061] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0062] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only 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 thus cannot be understood as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined. It should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" in the description of the present application should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; 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 communication inside 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 situations.

[0063] In this application, the term "exemplary" is used to mean "serving as an example, illustration, or instance". Any embodiment described as "exemplary" in this application is not necessarily to be construed as more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. In the following description, details are set forth for purposes of explanation. It should be understood that those of ordinary skill in the art can recognize that this application can be implemented without these specific details. In other instances, well-known structures and processes are not elaborated in detail to avoid obscuring the description of this application with unnecessary details. Therefore, this application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed in this application.

[0064] The ink stack is one of the important components of a printing device. The printing device has a print head. When the ink stack contacts the printer print head, it can completely cover the print head. The ink stack can be connected to an air pump so that the ink stack sucks down the ink in the print head to prevent the ink in the print head from condensing on its surface and causing blockage of the print head.

[0065] After the ink stack and the print head are aligned with each other, during the operation of the air pump, the air pump generates negative pressure at the mating part of the ink stack and the print head. When the negative pressure changes, the print head is likely to be damaged due to unstable pressure or excessive pressure.

[0066] Please refer to Figure 1 , this application example provides an ink stack 30 for a printing device. The ink stack 30 can cooperate with the print head 20 of the printing device. By means of a vent pipe 33 provided on the ink stack 30, the adsorption groove 321 on the ink pad assembly 32 for adsorbing the print head 20 is depressurized, so as to control the adsorption pressure of the ink stack 30 on the print head 20 and reduce the damage to the print head 20 caused by unstable or excessive pressure.

[0067] Please refer to in combination Figure 2 , Figure 3 and Figure 4 , in some examples, the ink stack 30 includes a maintenance base 31, an ink pad assembly 32, an air pump 38, and a vent pipe 33.

[0068] The maintenance base 31 can serve as the support structure of the ink stack 30, and can also be used to connect to other functional components of the printing device for fixing the ink stack 30. In the example of this application, the maintenance base 31 can be partially hollow to accommodate other functional components of the ink stack 30. The maintenance base 31 in the example of this application can be fixedly connected to other functional components of the printing device, or can be detachably connected to other functional components of the printing device. Optionally, the maintenance base 31 can be arranged upward facing the printing device and can be arranged below the print head 20. The maintenance base 31 can generally be in a cuboid structure, or can be an irregular special-shaped structure to make full use of the internal space of the printing device.

[0069] Please refer to Figure 5 and Figure 7 , the ink pad assembly 32 is installed on the maintenance base 31, and the ink pad assembly 32 has an adsorption groove 321 for adsorbing the print head 20.

[0070] The ink pad assembly 32 can be detachably connected to the maintenance base 31. In some examples, the ink pad assembly 32 can be movably connected to the maintenance base 31, and the ink pad assembly 32 can move in a direction closer to or away from the maintenance base 31 so that the ink pad assembly 32 can be closer to or away from the print head 20. In some examples, the ink pad assembly 32 can be movably connected to the printing device together with the maintenance base 31 to change the distance between the ink pad assembly 32 and the print head 20 as needed.

[0071] The ink pad assembly 32 has an adsorption groove 321 for adsorbing the liquid in the print head 20. The adsorption groove 321 is used to accommodate the print head 20 when needed so that the print head 20 can be limited to the position corresponding to the ink stack 30 on the printing device. The adsorption groove 321 is used to cooperate with the print head 20. When the print head 20 is closely attached to the adsorption groove 321, the inner wall surface of the adsorption groove 321 can be used to adsorb and seal the print head 20 to prevent ink condensation from clogging the print head 20. In this example, the shape of the adsorption groove 321 can correspond to the shape of the print head 20. The adsorption groove 321 can generally be in a concave shape, and the print head 20 can at least partially extend into the adsorption groove 321 so that the inner wall surface of the adsorption groove 321 can be hermetically attached to the print head 20.

[0072] The air pump 38 is used to connect to the adsorption tank 321. The intake port of the air pump 38 communicates with the adsorption tank 321, and the outlet port of the air pump 38 communicates with the outside of the adsorption tank 321. The air pump 38 is used to suck the gas in the adsorption tank 321 so that a local negative pressure state can be generated in the adsorption tank 321. In this example, the intake port of the air pump 38 can communicate with the adsorption tank 321 through the suction pipe 381. The suction pipe 381 can be connected to any position of the adsorption tank 321. When the nozzle 20 is located in the adsorption tank 321, the air pump 38 can be turned on to form a negative pressure between the nozzle 20 and the inner wall surface of the adsorption tank 321. The air pump 38 in this example can be installed on the maintenance base 31 or the ink pad assembly 32. Optionally, the air pump 38 can also be installed in other parts of the printing device. The outlet port of the air pump 38 can communicate with any position outside the adsorption tank 321. Optionally, the outlet port of the air pump 38 can communicate with the outside of the ink stack 30. Optionally, in some examples, through holes communicating with the adsorption tank 321 can be provided on the ink pad assembly 32, and the through holes can communicate with the air pump 38 through the suction pipe 381. Optionally, the number of the suction pipes 381 can be one or more. When multiple suction pipes 381 are provided, the multiple suction pipes 381 can be used to communicate with multiple parts of the adsorption tank 321 to disperse the force acting on the nozzle 20 and reduce the damage to the nozzle 20 caused by uneven local force.

[0073] The vent pipe 33 is connected to the suction pipe 381, and the vent pipe 33 is used to communicate the suction pipe 381 with the atmosphere.

[0074] The vent pipe 33 is a hollow pipe structure. The vent pipe 33 is used to communicate the suction pipe 381 with the outside of the ink pad assembly 32 for relieving the pressure of the adsorption tank 321. When the nozzle 20 is adsorbed in the adsorption tank 321, the vent pipe 33 can be used to adjust the magnitude of the negative pressure between the nozzle 20 and the inner wall surface of the adsorption tank 321. The vent pipe 33 in this example can be used to adjust the adsorption pressure between the adsorption tank 321 and the nozzle 20. When the air pump 38 is operating, when the adsorption pressure of the inner wall surface of the adsorption tank 321 on the nozzle 20 is too large, the vent pipe 33 can be used to reduce the pressure between the adsorption tank 321 and the nozzle 20 to reduce the risk of damage to the nozzle 20 caused by excessive adsorption force. When the air pressure of the air pump 38 on the printing device is unstable, the vent pipe 33 in this example can also be used to stabilize the air pressure between the inner wall surface of the adsorption tank 321 and the nozzle 20 to reduce the damage to the nozzle 20 caused by unstable air pressure. The vent pipe 33 can communicate with any part outside the ink pad assembly 32, and the vent pipe 33 can also communicate with any position outside the ink stack 30 so that the vent pipe can communicate with the atmosphere. The communication of the vent pipe with the atmosphere means that air flow can flow between the suction pipe and the external atmosphere through the vent pipe.

[0075] When the air pump 38 is running and factors such as the power of the air pump 38 are constant, the intake air volume of the air pump 38 is constant. In this example, the intake air of the air pump 38 can be dispersed through the air permeable pipe 33, so as to change the negative pressure between the inner wall surface of the adsorption tank 321 and the nozzle 20. In some examples, the intake air volume of the air permeable pipe 33 per unit time can be changed by at least one of the following ways: adjusting the pipe diameter of the air permeable pipe 33, the number of the air permeable pipes 33, the opening degree of the air permeable pipe 33, etc. In some examples, the ink stack 30 may further include a air pressure detection module 391 and a main control board 39. The air pressure detection module 391 can be used to detect the air pressure between the inner wall surface of the adsorption tank 321 and the nozzle 20, and the main control board 39 can be used to receive the air pressure signal and control the opening degree of the air permeable pipe 33 according to the air pressure signal.

[0076] Optionally, in this example, one end of the air permeable pipe 33 can be connected to any position of the air extraction pipe 381. In some examples, the number of the air permeable pipes 33 can be multiple, and the multiple air permeable pipes 33 can be connected to different parts of the adsorption tank 321. Optionally, when the ink pad assembly 32 is provided with multiple air extraction pipes 381, the number of the air permeable pipes 33 can correspond to the number of the air extraction pipes 381, or one air permeable pipe 33 can be connected to multiple air extraction pipes 381.

[0077] In the example of the present application, by providing the air permeable pipe 33 to relieve the pressure of the adsorption tank 321, it is convenient to control the air pressure between the inner wall surface of the adsorption tank 321 and the nozzle 20, so as to reduce the damage of the nozzle 20 caused by excessive air pressure or unstable air pressure, which helps to extend the service life of the nozzle 20.

[0078] Please refer to Figure 3 、 Figure 4 and Figure 6 , the ink stack 30 further includes an airtight member 34. The airtight member 34 is connected to the air permeable pipe 33, and the airtight member 34 is used to open or close the air permeable pipe 33.

[0079] The airtight member 34 is used to control the opening or closing of the air permeable pipe 33, including the time for controlling the opening or closing of the air permeable pipe 33 and the opening degree of the air permeable pipe 33. The airtight member 34 has an open state and a closed state. Among them, when the airtight member 34 is in the open state, the air permeable pipe 33 is fully opened. When the airtight member 34 is in the closed state, the air permeable pipe 33 is fully closed. When the airtight member 34 is between the open state and the closed state, the air permeable pipe 33 is partially opened. The airtight member 34 in this example can be provided inside the air permeable pipe 33, and the airtight member 34 can be a air valve or a plug provided inside the air permeable pipe 33; the airtight member 34 can also be provided outside the air permeable pipe 33. The airtight member 34 in this example can be driven by a mechanical structure, and the airtight member 34 can also be an electric drive structure such as an electromagnetic valve.

[0080] In some examples, the ink stack 30 further includes a main control board 39, which is electrically connected to the air pump 38. The main control board 39 can be used to obtain the working signal of the air pump 38. The main control board 39 is also electrically connected to the airtight member 34, and the main control board 39 is further used to control the operation of the airtight member 34 according to the working signal of the air pump 38.

[0081] In this example, the main control board 39 described can be a circuit board installed on the maintenance base 31 or the ink pad assembly 32, and the main control board 39 can also be installed at other positions on the printing device. The electrical connection between the main control board 39 and the air pump 38 means that the main control board 39 can transmit electrical signals with the air pump 38. In this example, the main control board 39 can also be used to send electrical signals to the air pump 38 to control the start, stop or power of the air pump 38. The main control board 39 can also be used to obtain the working signal of the air pump 38, and the working signal can include electrical signals such as the start time, stop time and operating power of the air pump 38. The electrical connection between the main control board 39 and the airtight member 34 means that the main control board 39 can send electrical signals to the airtight member 34 to control its operation. In this example, the main control board 39 can also be used to send start and stop time signals to the airtight member 34, and the main control board 39 can also be used to send electrical signals to the airtight member 34 to control the opening degree of the air permeable pipe 33.

[0082] In this example, the main control board 39 obtains the working signal of the air pump 38, and the main control board 39 can control the operation of the airtight member 34 according to the working state of the air pump 38. When the air pump 38 is running, the main control board 39 can control the airtight member 34 to open so that the air permeable pipe 33 can be used for pressure relief.

[0083] In some examples, the airtight member 34 includes a plug 341 and a first driving component 342. The plug 341 has an open position for opening the air permeable pipe 33 and a closed position for closing the air permeable pipe 33. The first driving component 342 is connected to the plug 341, and the main control board 39 is electrically connected to the first driving component 342. The main control board 39 is used to control the movement of the first driving component 342 to drive the plug 341 to move between the open position and the closed position.

[0084] The plug 341 can be movably connected to the vent pipe 33 between an open position and a closed position. The plug 341 is movably arranged relative to the vent pipe 33 so that the plug 341 can move between the open position and the closed position. When the plug 341 is in the open position, there is a gap between the plug 341 and the vent pipe 33, and air flow can flow through the vent pipe 33; when the air pump 38 is operating, the intake air of the air pump 38 can be dispersed through the vent pipe 33, so that the negative pressure between the inner wall surface of the adsorption tank 321 and the nozzle 20 changes, so as to adjust the magnitude of the negative pressure adsorption force on the nozzle 20; in this example, the size of the gap between the plug 341 and the vent pipe 33 can be adjusted by adjusting the relative position of the plug 341, and then the air flow rate of the vent pipe 33 is adjusted. As the air flow rate of the vent pipe 33 changes, the negative pressure adsorption force received by the nozzle 20 also changes, which can facilitate the balance of the force on the nozzle 20. Optionally, the ink stack 30 may further include the air pressure detection module 391 described in any of the above examples. The air pressure detection module 391 can be used to detect the air pressure between the inner wall surface of the adsorption tank 321 and the nozzle 20. The main control board 39 can be used to receive the air pressure signal and control the position of the plug 341 according to the air pressure signal, and then adjust the size of the gap between the plug 341 and the vent pipe 33 to adjust the air flow rate of the vent pipe. When the plug 341 is in the closed position, the plug 341 closes the vent pipe 33 to close the vent pipe 33.

[0085] The plug 341 in this example can be movably connected to the vent pipe 33. Optionally, the plug 341 can be movably connected to the ink pad assembly 32. The plug 341 can be rotatably or slidably connected to the ink pad assembly 32 so that the plug 341 can move between the open position and the closed position. Optionally, the plug 341 can also be directly slidably or rotatably connected to the maintenance base 31.

[0086] The first driving component 342 is used to drive the plug 341 to move between the open position and the closed position. The first driving component 342 can be used to drive the plug 341 to move along a preset track. The first driving component 342 in this example can be a motor, an electromagnetic driving component or other components that can be used to drive the plug 341 to move along a preset track.

[0087] The first driving component 342 is electrically connected to the main control board 39 so that the main control board 39 can send a control signal to the first driving component 324 to control the start, stop and running duration of the first driving component 342.

[0088] Please refer to Figure 6, in some examples, the first driving component 342 includes a first connecting member 344 and a driving module 343; the first connecting member 344 is connected to the plug 341; the driving module 343 is connected to the ink pad assembly 32; the driving module 343 has an output end, and the output end of the driving module 343 is drivingly connected to the first connecting member 344, and the driving module 343 is configured to drive the first connecting member 344 to drive the plug 341 to move between an open position and a closed position.

[0089] The first connecting member 344 can be used to connect the plug 341, and the first connecting member 344 is movably arranged relative to the air permeable tube 33 to drive the plug 341 to move synchronously.

[0090] The driving module 343 is connected to the ink pad assembly 32, which means that the driving module 343 can be fixedly connected or detachably connected to the ink pad assembly 32. The driving module 343 is drivingly connected to the first connecting member 344, which means that the driving module 343 can drive the first connecting member 344 to move along a preset trajectory. The first connecting member 344 in this example can be used as an intermediate connecting member between the driving module 343 and the plug 341. The first connecting member 344 can be rod-shaped, sheet-shaped or other irregular special-shaped structures. The first connecting member 344 can be installed in the area between the driving module 343 and the plug 341. On the one hand, it can make the plug 341 better adapt to the position of the air permeable tube 33. On the other hand, the position of the driving module 343 can be determined according to needs to make full use of the space inside the ink stack 30 and improve the rationality of the spatial layout of the internal components of the ink stack 30.

[0091] The driving module 343 can be used to drive the first connecting member 344 to translate, rotate or a combination of translation and rotation relative to the ink pad assembly 32. The first connecting member 344 in this example is connected to the plug 341. When the driving module 343 drives the first connecting member 344 to move along a preset trajectory, the plug 341 can move synchronously, so that the plug 341 can move between an open position and a closed position. The driving module 343 can be a driving motor or other driving devices. In some examples, the driving module 343 can be an electromagnetic driving device.

[0092] In some examples, the first connecting member 344 is rotatably connected to the ink pad assembly 32, and the driving module 343 is configured to drive the first connecting member 344 to rotate relative to the ink pad assembly 32.

[0093] The first connecting member 344 can rotate relative to the ink pad assembly 32. When the first connecting member 344 rotates, the plug 341 can move synchronously so that the plug 341 moves between the open position and the closed position. The driving module 343 can drive the first connecting member 344 to rotate relative to the ink pad assembly 32 through gear engagement or other engagement methods. In this example, by rotatably arranging the first connecting member 344 relative to the ink pad assembly 32, the installation of the first connecting member 344 and the ink pad assembly 32 can be facilitated. On the one hand, the ink pad assembly 32 can be used to support the first connecting member 344 so that the first connecting member 344 has a relatively stable movement track. On the other hand, the structural stability of the first connecting member 344 can be improved.

[0094] Please refer to Figure 6 , in some examples, the first connecting member 344 has a first end 3441 and a second end 3442 which are oppositely arranged. The driving module 343 is drivingly connected to the first end 3441, and the plug 341 is connected to the second end 3442; a first rotating shaft 3226 is arranged on the ink pad assembly 32, and the first connecting member 344 is rotatably connected to the first rotating shaft 3226, and the first rotating shaft 3226 is connected between the first end 3441 and the second end 3442.

[0095] The first end 3441 and the second end 3442 can be two ends in the length direction of the first connecting member 344. The first end 3441 of the first connecting member 344 is rotatably connected to the driving module 343 so that the driving module 343 can drive the first connecting member 344 to rotate relatively. The plug 341 is connected to the second end 3442. When the first connecting member 344 rotates relatively, the plug 341 can switch between the open position and the closed position. In this example, by connecting the plug 341 to the second end 3442, the stroke of the plug 341 can be easily extended, so as to control the opening degree of the air permeable pipe 33 by controlling the position of the plug 341 relative to the air permeable pipe 33.

[0096] The first rotating shaft 3226 can be a cylindrical structure arranged on the ink pad assembly 32, and the first connecting member 344 is rotatably connected to the first rotating shaft 3226 so that the first connecting member 344 can rotate relative to the ink pad assembly 32. In the example of the present application, the first rotating shaft 3226 is arranged between the first end 3441 and the second end 3442. The first rotating shaft 3226 can be arranged at the geometric center of the area between the first end 3441 and the second end 3442, or the first rotating shaft 3226 can be arranged close to the first end 3441 or the second end 3442. In this example, by using the first rotating shaft 3226 to cooperate with the first connecting member 344, the first connecting member 344 can be limited to improve the stability of the first connecting member 344.

[0097] Please refer to Figure 8 and Figure 9, in some examples, the ink stack 30 further includes a wiper assembly 35 and a second connecting member 353. The wiper assembly 35 has a first position and a second position, and the wiper assembly 35 is movably connected to the ink pad assembly 32 between the first position and the second position; the second connecting member 353 is connected to the wiper assembly 35; the first driving assembly 342 is also drivingly connected to the second connecting member 353, and the first driving assembly 342 is further configured to drive the second connecting member 353 to drive the wiper assembly 35 to move between the first position and the second position.

[0098] The wiper can be used to scrape off the excess ink on the nozzle 20. The wiper assembly 35 can be disposed beside the adsorption groove 321, and during the movement of the nozzle 20, the wiper assembly 35 can be used to clean the nozzle 20.

[0099] The wiper assembly 35 is movably connected to the ink pad assembly 32 between the first position and the second position, so that the wiper assembly 35 can change its angle and / or position.

[0100] In some examples, the wiper assembly 35 includes a wiper bracket 351 and a wiper body 352. The wiper bracket 351 is movably connected to the ink pad assembly 32; the wiper body 352 is connected to the wiper bracket 351. The wiper bracket 351 can be connected to the ink pad assembly 32. The wiper bracket 351 can serve as the main structure of the wiper assembly 35. A clamping groove for installing the wiper body 352 can be provided on the wiper bracket 351, and the wiper body 352 can be clamped on the wiper bracket 351. In this example, the wiper body 352 can be set as a quick-release structure to facilitate replacing the wiper body 352 as needed.

[0101] Optionally, the first driving assembly 342 includes the first connecting member 344 and the driving module 343 described in any of the above examples. The second connecting member 353 can serve as an intermediate connecting member between the wiper assembly 35 and the driving module 343. The second connecting member 353 can be a rod-shaped, disc-shaped or other irregular special-shaped structure. The driving module 343 is drivingly connected to the second connecting member 353 so that the driving module 343 can drive the second connecting member 353 to move along a preset trajectory. The second connecting member 353 in this example can be slidable, rotatable or a combination of sliding and rotating relative to the ink pad assembly 32. The driving module 343 in this example can synchronously drive the first connecting member 344 and the second connecting member 353. Figure 6Taking the state shown in as an example, when the driving module 343 drives the first connecting member 344 to move so that the plug 341 is in the open position, the driving module 343 can synchronously drive the second connecting member 353 to make the scraper assembly 35 in the first position. At this time, the scraper body 352 of the scraper assembly 35 can be used to scrape off the ink on the nozzle 20; when the driving module 343 drives the first connecting member 344 to move so that the plug 341 moves to the closed position, the driving module 343 can synchronously drive the scraper assembly 35 to move to the second position, and the scraper body 352 of the scraper assembly 35 can be staggered with the moving path of the nozzle 20, and the scraper assembly 35 will not contact the nozzle 20.

[0102] In this example, the drive module 343 is used to drive the movement of the scraper assembly 35 and the plug 341 , and a single drive device can be used to drive the state adjustment of the two components, which helps to simplify the structure of the ink stack 30 and improve the space utilization of the ink stack 30 .

[0103] In some examples, the ink stack 30 also includes a scraper assembly 35, a second connecting member 353 and a driving module 343. The scraper assembly 35 has a first position and a second position. The scraper assembly 35 is movably connected to the ink pad assembly 32 between the first position and the second position; the second connecting member 353 is connected to the scraper assembly 35; the driving module 343 is connected to the ink pad assembly 32, and the driving module 343 is drivingly connected to the second connecting member 353 for driving the second connecting member 353 to drive the scraper assembly 35 to move between the first position and the second position.

[0104] The driving module 343 in this example drives the movement of the scraper assembly 35 through the second connecting member 353, thereby adjusting the state of the scraper assembly 35. The structure and connection method of the driving module 343 and the second connecting member 353 can refer to the description in the above example and will not be repeated.

[0105] In some examples, the scraper assembly 35 is rotatably connected to the ink pad assembly 32. One of the ink pad assembly 32 and the scraper assembly 35 may be provided with a rotating shaft, and the scraper assembly 35 may be rotatably connected to the ink pad assembly 32 via the rotating shaft. In this example, the scraper assembly 35 may be rotatably switched between a first position and a second position, so that the scraper assembly 35 may be adjusted in position. The rotating shaft may be connected to one end of the scraper assembly 35, or the rotating shaft may be provided in the middle of the scraper assembly 35.

[0106] Please refer again Figure 3 In some examples, the ink stack 30 also includes a first restoring member 354, one end of the first restoring member 354 is connected to the ink pad assembly 32, and the other end is connected to the second connecting member 353 or the scraper assembly 35, and the first restoring member 354 is used to generate a force for the scraper assembly 35 to move from the first position to the second position.

[0107] The driving module 343 can be used to drive the wiper assembly 35 to move from the second position to the first position to adjust the state of the wiper assembly 35. The first reset member 354 can be used to reset the wiper assembly 35 so that the wiper assembly 35 can move to the second position. In this example, when the wiper assembly 35 is in the first position, the plug 341 is in an open state, and when the wiper assembly 35 is in the second position, the plug 341 is in a closed state. The first reset member 354 can be a spring or other structure that can deform under force and return to its original state when the force disappears.

[0108] In this example, one end of the first reset member 354 is connected to the ink pad assembly 32, and the other end can be connected to the wiper assembly 35 so that the first reset member 354 directly acts on the wiper assembly 35 to move the wiper assembly 35 to the second position. In this example, the other end of the first reset member 354 can also be connected to the second connecting member 353 so that the first reset member 354 acts on the second connecting member 353 and drives the wiper assembly 35 to move to the second position through the second connecting member 353.

[0109] In some examples, the ink pad assembly 32 has an adsorption position for adsorbing the nozzle 20 and a release position for releasing the nozzle 20, and the ink pad assembly 32 is movably connected to the maintenance base 31 between the adsorption position and the release position.

[0110] The ink pad assembly 32 being movably connected to the maintenance base 31 means that the ink pad assembly 32 can move relative to the maintenance base 31 so that the ink pad assembly 32 can move between the adsorption position and the release position. When the ink pad assembly 32 is in the adsorption position, the adsorption groove 321 corresponds to the position of the nozzle 20, and the nozzle 20 can be adsorbed through the adsorption groove 321; when the ink pad assembly 32 is in the release position, the adsorption groove 321 is spaced from the nozzle 20 so that the nozzle 20 detaches from the adsorption groove 321.

[0111] In this example, the ink pad assembly 32 can be slidably arranged relative to the maintenance base 31, and the ink pad assembly 32 can move relative to the maintenance base 31 along a straight line, a curve, or a trajectory combining a straight line and a curve. In this example, by enabling the ink pad assembly 32 to move relative to the maintenance base 31, the ink pad assembly 32 can be adapted to the nozzle 20 to achieve an adsorption effect on the nozzle 20. When it is not necessary to adsorb the nozzle 20, the nozzle 20 can be promptly detached from the adsorption groove 321. In this example, the ink pad assembly 32 can be driven to move relative to the maintenance base 31 by a driving device, and the driving device can be a motor or other driving structure.

[0112] Please refer to again Figure 1 and Figure 7In some examples, one of the ink pad assembly 32 and the maintenance base 31 is provided with a guide groove 311, and the other is provided with a guide rod 324, and the guide rod 324 is slidably inserted into the guide groove 311 between the adsorption position and the release position.

[0113] The guide rod 324 can be at least partially inserted into the guide groove 311, and the guide rod 324 can move along the track formed by the guide groove 311. In this example, when the guide rod 324 moves in the guide groove 311, the ink pad assembly 32 can move between the adsorption position and the release position relative to the maintenance base 31.

[0114] The guide groove 311 can be used to define the moving track of the guide rod 324, and the extending direction of the guide groove 311 is consistent with the moving track of the ink pad assembly 32 from the adsorption position to the release position. The guide rod 324 in this example can be set on the ink pad assembly 32, and the guide groove 311 can be set on the maintenance base 31, or the guide rod 324 can be set on the maintenance base 31, and the guide groove 311 is set on the ink pad assembly 32. For the convenience of description, the following is an example in which the guide rod 324 is connected to the ink pad assembly 32 and the guide groove 311 is a groove opened on the maintenance base 31.

[0115] When the ink pad assembly 32 moves relative to the maintenance base 31, the guide groove 311 can limit the moving trajectory of the guide rod 324, so that the ink pad assembly 32 can only move along the trajectory formed by the guide groove 311, so as to improve the stability of the ink pad assembly 32 during movement, reduce unnecessary jitter generated when the ink pad assembly 32 moves between the adsorption position and the release position, and reduce the possibility of misalignment between the ink pad assembly 32 and the nozzle 20.

[0116] Please continue reading Figure 1 In some examples, the ink pad assembly 32 is at least partially disposed on one side of the maintenance base 31 along the first direction a, and the adsorption groove 321 is located on the side of the ink pad assembly 32 away from the maintenance base 31 along the first direction a; the guide groove 311 has a front end 3111 and a rear end 3112 that are relatively disposed, and an angle α between a line c between the front end 3111 and the rear end 3112 and the first direction a is not less than 0° and not more than 90°.

[0117] The first direction a may be from bottom to top, and the ink pad assembly 32 may be at least partially disposed above the maintenance base 31. The adsorption groove 321 is disposed away from the maintenance base 31 so that the adsorption groove 321 can be used to adapt to the nozzle 20.

[0118] The front end 3111 and the rear end 3112 of the guiding groove 311 can be two ends of the guiding groove 311 in the length direction. In this example, a connection line c is obtained by connecting the front end 3111 and the rear end 3112 of the guiding groove 311. The included angle α between the connection line c and the first direction a is not less than 0°, and the guiding rod 324 does not move linearly along the first direction a; the included angle α between the connection line c and the first direction a does not exceed 90°, and the guiding rod 324 does not move in a direction perpendicular to the first direction a. In this example, taking the ink pad assembly 32 being arranged above the maintenance base 31 as an example, the direction from the front end 3111 to the rear end 3112 of the adsorption groove 321 is an inclined upward direction, and the guiding rod 324 can move away from the maintenance base 31 along the inclined upward direction in the adsorption groove 321. The guiding groove 311 in this example can be partially inclined upward, partially horizontal or vertical, and the overall extension direction of the guiding groove 311 is in an inclined state, so that the ink pad assembly 32 can move inclined upward relative to the maintenance base 31 as a whole.

[0119] Please refer to again Figure 5 , in some examples, the ink pad assembly 32 includes an ink pad seat 322 and an ink absorption module 323. The ink pad seat 322 is movably connected to the maintenance base 31 between an adsorption position and a release position; the ink absorption module 323 is connected to a side of the ink pad seat 322 facing away from the maintenance base 31; the ink absorption module 323 is formed with an adsorption groove 321.

[0120] The ink pad seat 322 can serve as the bottom support structure of the ink pad assembly 32. The ink pad seat 322 can move relative to the maintenance base 31. When the ink pad seat 322 moves relative to the maintenance base 31, the ink pad assembly 32 moves between an adsorption position and a release position. The ink pad seat 322 in this example can be a cuboid plate-like structure, the ink pad seat 322 can also be a box-like structure with at least part being hollow, and the ink pad seat 322 can also be an irregular special-shaped structure.

[0121] The ink absorption module 323 can be used to absorb ink. In this example, the ink absorption module 323 is connected to the ink pad seat 322. The ink pad seat 322 can support the ink absorption module 323 so that the ink absorption module 323 can move synchronously with the ink pad seat 322. The ink absorption module 323 can be fixedly connected to the ink pad seat 322. An adsorption groove 321 described in any of the above examples is formed on the ink absorption module 323. The adsorption groove 321 can be a groove on the side of the ink absorption module 323 facing away from the ink pad seat 322. In some examples, the ink stack 30 includes an air extraction pipe 381 described in any of the above examples. A through hole for communicating with the adsorption groove 321 can be formed on the ink pad seat 322, and the air extraction pipe 381 can communicate with the corresponding through hole to generate negative pressure in the adsorption groove 321. Optionally, at least a part of the ink absorption module 323 can be located inside the ink pad seat 322 to facilitate reducing the volume of the ink pad assembly 32. In some examples, a concave sink is formed on the ink pad seat 322, and the ink absorption module 323 is embedded in the sink. The ink absorption module 323 can be fixedly connected to the ink pad seat 322 by bolts, snap connections or other means. The ink pad seat 322 in this example can form an integral body with the ink absorption module 323 and move synchronously between the release position and the adsorption position. In some examples, the ink absorption module 323 can be a quick-release structure on the ink pad seat 322. Optionally, one of the ink pad seat 322 and the ink absorption module 323 is provided with a buckle 33, and the other is provided with a slot 34. The buckle 33 is snapped into the slot 34 to facilitate quickly disassembling the ink absorption module 323 from the ink pad seat 322.

[0122] In some examples, the ink pad assembly 32 further includes a guide member 3221. The guide member 3221 includes a first part 3222 and a second part 3223. The first part 3222 is connected to the outer wall of the ink pad seat 322 and extends in a direction away from the ink pad seat 322 along the second direction b. One end of the second part 3223 is connected to the end of the first part 3222 away from the ink pad seat 322, and the other end protrudes toward the side of the ink pad seat 322 close to the adsorption groove 321 along the first direction a. The second part 3223 is used to abut against the side wall of the nozzle 20 along the second direction b to drive the ink pad assembly 32 to move from the release position to the adsorption position. The second direction b is set at an angle to the first direction a.

[0123] The guide member 3221 can be used to be connected to the ink pad seat 322. The guide member 3221 in this example can be separately provided and connected to the ink pad seat 322. Optionally, the guide member 3221 can also be integrally provided with the ink pad seat 322.

[0124] The guiding member 3221 includes a first part 3222 and a second part 3223, and the first part 3222 and the second part 3223 are connected to form an integral body. The first part 3222 is connected to the outer wall of the ink pad seat 322, and the first part 3222 protrudes and extends along the second direction b on the outside of the ink pad seat 322. The second direction b is set at an angle to the first direction a, which means that the second direction b is not parallel to the first direction a. In this example, the second direction b can be perpendicular to the first direction a. The second part 3223 is connected to the first part 3222, and the second part 3223 protrudes outward from the ink pad seat 322, so that at least a part of the second part 3223 protrudes from the outside of the ink pad seat 322 along the first direction a. Moreover, one end of the second part 3223 away from the first part 3222 protrudes toward the side close to the adsorption groove 321.

[0125] Since the adsorption groove 321 can be used to cooperate with the nozzle 20, the second part 3223 protrudes toward the adsorption groove 321. When the nozzle 20 of the printing device moves along the second direction b toward the adsorption groove 321, the side wall of the nozzle 20 along the second direction b can abut against the second part 3223, so that the second part 3223 can move synchronously. The second part 3223 can drive the ink pad seat 322 to move synchronously, thereby moving the entire ink pad assembly 32 from the release position to the adsorption position. When the ink pad assembly 32 moves to the adsorption position, the adsorption groove 321 of the ink pad assembly 32 can be aligned with the nozzle 20, so that the ink pad assembly 32 can be used to adsorb the nozzle 20. In this example, since the maintenance base 31 and the ink pad assembly 32 are limited by the guide rod 324 and the guide groove 311, the ink pad assembly 32 can only move along the trajectory formed by the guide groove 311. When the ink absorption module 323 moves to the rear end 3112 of the guide groove 311, the adsorption groove 321 can be adapted to the position of the nozzle 20.

[0126] In this example, during the movement of the nozzle 20, the second part 3223 can be driven to move synchronously by the nozzle 20, so that the ink pad assembly 32 moves from the release position to the adsorption position. During the movement of the ink pad assembly 32, an additional driving device can be avoided, and the nozzle 20 is used to drive the ink pad assembly 32 to move synchronously. On the one hand, the driving complexity of the ink stack 30 can be reduced, and the structural design can be simplified. On the other hand, the driving mechanism can be reduced, and the driving cost can be lowered. Moreover, since the nozzle 20 can drive the ink pad assembly 32 to move synchronously during the movement of the nozzle 20, the nozzle 20 and the ink pad assembly 32 can be operated synchronously, improving the operation accuracy of the ink stack 30. In this example, by setting the first part 3222 and the second part 3223, the second part 3223 can be used to cooperate with the side wall of the nozzle 20 in the second direction b. The first part 3222 protrudes outside the ink pad seat 322 and can form an extended part outside the ink pad seat 322, so that the second part 3223 can be better staggered from the adsorption groove 321. During the movement of the nozzle 20, the nozzle 20 can contact the second part 3223. At the same time, the second part 3223 will not interfere with the nozzle 20 and the adsorption groove 321. When the nozzle 20 is in the state of being adsorbed to the adsorption groove 321, due to the blockage of the side wall of the nozzle 20 in the second direction b, the second part 3223 cannot move relatively, thereby preventing the ink pad assembly 32 from resetting in the direction of the release position. When the nozzle 20 detaches from the adsorption groove 321, the acting force of the nozzle 20 on the second part 3223 disappears, and the ink pad assembly 32 can move from the adsorption position to the release position direction.

[0127] In some examples, a guide wheel 3224 is provided at one end of the guide member 3221 away from the ink pad seat 322. The guide wheel 3224 in this example is used to rotatably abut against the side wall of the nozzle 20 in the second direction b. The rotatable abutment means that the guide wheel 3224 can rotate relative to the side wall of the nozzle 20 in the second direction b to reduce the frictional resistance between the side wall of the nozzle 20 in the second direction b and the second part 3223. The guide wheel 3224 can be a rotatable structure such as a roller or a bearing.

[0128] In some examples, a foam holder 3227 is provided on the side of the second part 3223 facing the adsorption groove 321, and a foam 3228 can be provided on the foam holder 3227. When the nozzle 20 pushes the second part 3223 to move, the foam 3228 can be used to adsorb the ink on the nozzle 20.

[0129] In some examples, the ink stack 30 further includes a second reset member 37. One end of the second reset member 37 is connected to the maintenance base 31, and the other end is connected to the ink absorption module 323. The second reset member 37 is used to generate a force for moving the ink absorption module 323 from the adsorption position to the release position. The second reset member 37 can be an elastic reset material, such as a spring. The second reset member 37 is used to generate a force on the ink absorption module 323 to drive the ink absorption module 323 to move towards the release position. In this example, when the nozzle 20 is disengaged from the adsorption groove 321, the force of the nozzle 20 on the second part 3223 disappears. Under the action of the second reset member 37, the ink absorption module 323 moves towards the release position, thereby restoring the ink pad assembly 32 to its original state. The second reset member 37 in this example can be directly connected to the ink absorption module 323 and the maintenance base 31. Since the ink absorption module 323 can form an integral body with the ink pad seat 322, the second reset member 37 can also be connected to the ink pad seat 322. Optionally, the second reset member 37 can be connected to any position on the ink absorption module 323. Optionally, the ink absorption module 323 can be arranged around the outer periphery of the air extraction pipe 381. The second reset member 37 can be used to generate a force on the ink absorption module 323 in the first direction a.

[0130] In some examples, an avoidance groove 3225 is formed in the ink pad seat 322, and the second reset member 37 is disposed through the avoidance groove 3225. The avoidance groove 3225 can be a through hole penetrating the ink pad seat 322. The second reset member 37 passes through the avoidance groove 3225 and is connected to the maintenance base 31. The avoidance groove 3225 in this example can be arranged corresponding to the geometric center of the ink pad seat 322 to balance the force on the ink absorption module 323 and reduce the possibility of the ink absorption module 323 tilting.

[0131] In some examples, the ink absorption module 323 includes a mounting seat 3231, an ink pad main body 3232, an adsorption structure 3234, and an ink pad sealing ring 3233. The mounting seat 3231 is connected to the ink pad seat 322; the ink pad main body 3232 is connected to the mounting seat 3231; the adsorption structure 3234 is disposed in the mounting seat 3231; the ink pad sealing ring 3233 is connected to the ink pad main body 3232 and is arranged around the outer periphery of the adsorption structure 3234; the ink pad sealing ring 3233 and the adsorption structure 3234 enclose to form an adsorption groove 321.

[0132] The mounting base 3231 serves as the main support structure of the ink absorption module 323, and the ink pad base 322 can be used to connect to the ink pad base 322. In this example, the mounting base 3231 can be bolted, clamped or connected in other ways to the ink pad base 322. The mounting base 3231 can have a rectangular plate-like structure or other irregular special-shaped structures. In some examples, the ink stack 30 is provided with the second reset member 37 described in any of the above examples, and the second reset member 37 can be connected to the mounting base 3231. In some examples, through holes are provided on the mounting base 3231, and the air extraction pipe 381 can be connected to the through holes on the mounting base 3231. In some examples, one of the mounting base 3231 and the ink pad base 322 is provided with the buckle 33 described in the above example, and the other is provided with a slot 34, and the buckle 33 is clamped in the slot 34.

[0133] The ink pad main body 3232 can be connected to the mounting base 3231, and the ink pad main body 3232 can be used to support the adsorption structure 3234 so that the adsorption structure 3234 is maintained at a preset position on the ink pad base 322.

[0134] The adsorption structure 3234 can be used to adsorb ink. Optionally, the adsorption module can include an ink absorption foam 3235 and an ink pad filter screen 3236. The ink pad filter screen 3236 can be arranged on the side of the ink absorption foam 3235 facing away from the mounting base 3231, and the ink absorption foam 3235 and the ink pad filter screen 3236 can be respectively connected to the ink pad main body 3232.

[0135] The ink pad sealing ring 3233 can generally have an annular structure, and the ink pad sealing ring 3233 can correspond to the shape of the nozzle 20. The ink pad sealing ring 3233 is connected to the ink pad main body 3232, which means that the ink pad sealing ring 3233 can be clamped to the ink pad main body 3232, or the ink pad sealing ring 3233 can be bolted or connected in other ways to be fixedly connected to the ink pad main body 3232. The ink pad sealing ring 3233 surrounds the periphery of the adsorption structure 3234 so that the ink pad sealing ring 3233 can form an annular sealing structure around the adsorption structure 3234. The ink pad sealing ring 3233 and the adsorption structure 3234 enclose an adsorption groove 321. When the nozzle 20 moves to the adsorption groove 321, the ink pad sealing ring 3233 can surround the periphery of the nozzle 20 to seal the gap between the nozzle 20 and the adsorption structure 3234.

[0136] In some examples, the ink stack 30 further includes a third connecting member 361 and a second driving component 36. The third connecting member 361 has a connecting position and a disengaging position; the second driving component 36 is drivingly connected to the third connecting member 361 and is used to drive the third connecting member 361 to move between the connecting position and the disengaging position.

[0137] The second driving component 36 can be used to drive the third connecting member 361 to move along a preset trajectory, so that the third connecting member 361 can move between a connecting position and a disengaging position. The movement trajectory of the third connecting member 361 can be a straight line, a curve, or a combination of a straight line and a curve. The second driving component 36 in this example can be a motor, an electromagnetic driving device, or other devices that can drive the third connecting member 361 to move along a preset trajectory.

[0138] The second driving component 36 is connected to the ink pad assembly 32, and the third connecting member 361 is used to connect to the nozzle 20 at the connecting position or disengage from the nozzle 20 at the disengaging position; when the second driving component 36 drives the third connecting member 361 to move, the third connecting member 361 can be connected to the nozzle 20 so that the third connecting member 361 limits the nozzle 20 and prevents the ink pad assembly 32 from moving relative to the nozzle 20; when the second driving component 36 drives the third connecting member 361 to move towards the disengaging position, the third connecting member 361 can be moved away from the nozzle 20 so that the nozzle 20 no longer exerts traction on the ink pad assembly 32 or the maintenance base 31. Optionally, in this example, the second driving component 36 can also be connected to the maintenance base 31.

[0139] In some examples, different from the previous example, the second driving component 36 is used to connect to the nozzle 20, and the third connecting member 361 is used to connect to the ink pad assembly 32 at the connecting position or disengage from the ink pad assembly 32 at the disengaging position. The second driving component 36 and the third connecting member 361 in this example can be used to limit the nozzle 20 and the ink pad assembly 32, and the driving principle is the same as that of the previous example and will not be repeated. Optionally, in this example, the third connecting member 361 can also be used to connect to the maintenance base 31.

[0140] In this example, by setting the second driving component 36 and the third connecting member 361, the third connecting member 361 can be connected to the nozzle 20 and the ink pad assembly 32 or the maintenance base 31 when needed to secondarily define the positions of the ink pad assembly 32 and the nozzle 20, thereby improving the stability of the cooperation between the nozzle 20 and the adsorption groove 321.

[0141] This application also presents an example of a printing device, including a host 10, a nozzle 20, and an ink stack 30 as described in any of the above examples. The nozzle 20 is connected to the host 10; the maintenance base 31 of the ink stack 30 is connected to the host 10.

[0142] The host 10 in this example can serve as the main structure of the printing device. The print head 20 can be movably connected to the host 10 so that the print head 20 can perform printing operations along a preset trajectory. The adsorption groove 321 of the ink stack 30 is arranged facing the side of the print head 20 so that the print head 20 can be aligned with the adsorption groove 321 when needed. It can be understood that the printing device in the example of this application may further include other functional components, and reference can be made to the related art.

[0143] The above are only the implementation manners of this application, and do not limit the patent scope of this application accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of this application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of this application.

Claims

1. An ink stack for a printing device, the printing device having a print head, characterized in that, The ink stack comprises: Maintenance base; An ink pad assembly is mounted on the maintenance base, and the ink pad assembly has an adsorption groove for adsorbing the nozzle; an air pump, the air pump being connected to the adsorption tank through an air extraction pipe; and A ventilation tube is connected to the air extraction tube, and the ventilation tube is used to connect the air extraction tube with the atmosphere.

2. The ink stack according to claim 1, wherein The ink stack also includes: A main control board, electrically connected to the air pump, and used to obtain a working signal of the air pump; An airtight member, the airtight member is used to control the opening or closing of the air vent, the airtight member is electrically connected to the main control board, and the main control board is also used to control the operation of the airtight member according to the working signal of the air pump.

3. The ink stack according to claim 2, wherein The airtight member comprises: a plug having an open position for opening the vent tube and a closed position for closing the vent tube; and The first driving component is connected to the plug. The main control board is electrically connected to the first driving component. The main control board is used to control the movement of the first driving component to drive the plug to move between the open position and the closed position.

4. The ink stack according to claim 3, wherein, The ink stack also includes: a wiper blade assembly having a first position and a second position, the wiper blade assembly being movably coupled to the ink pad assembly between the first position and the second position; and The second connecting member is connected to the scraper assembly; the output end of the first driving assembly is also drivingly connected to the second connecting member, and the first driving assembly is also used to drive the second connecting member to drive the scraper assembly to move between the first position and the second position.

5. The ink stack according to claim 4, wherein The first driving assembly is used to drive the scraper assembly to move from the second position to the first position; the ink stack also includes: A first restoring member has one end connected to the ink pad assembly and the other end connected to the second connecting member or the scraper assembly. The first restoring member is used to generate a force for the scraper assembly to move from the first position to the second position.

6. The ink stack according to any one of claims 1 to 5, characterized in that The ink pad assembly is at least partially disposed on one side of the maintenance base along a first direction, and the adsorption groove is located on a side of the ink pad assembly away from the maintenance base along the first direction, and the first direction is a vertical direction; One of the ink pad assembly and the maintenance base is provided with a guide groove, and the other is provided with a guide rod, and the guide rod is slidably inserted in the guide groove between an adsorption position and a release position; the guide groove has a front end and a rear end that are relatively arranged, and the angle between the line connecting the front end and the rear end and the first direction is not less than 0° and not more than 90°.

7. The ink stack according to claim 6, characterized in that, The ink pad assembly comprises: an ink pad holder movably connected to the maintenance base between the adsorption position and the release position; and The ink absorption module is connected to a side of the ink pad seat away from the maintenance base; the ink absorption module is formed with the adsorption groove.

8. The ink stack according to claim 7, wherein The ink absorption module is detachably connected to the ink pad seat.

9. The ink stack according to claim 7, wherein, The ink pad assembly further comprises: The guiding member includes a first part and a second part; the first part is connected to the outer wall of the ink pad seat and extends away from the ink pad seat in the second direction; one end of the second part is connected to the end of the first part away from the ink pad seat, and the other end protrudes towards the side of the ink pad seat close to the adsorption groove in the first direction; the second part is used to abut against the side wall of the nozzle in the second direction to drive the ink pad assembly to move from the release position to the adsorption position; the second direction is set at an angle to the first direction.

10. The ink stack according to claim 7, wherein The ink stack further includes: A second resetting member, with one end connected to the maintenance base and the other end connected to the ink absorption module. The second resetting member is used to generate a force for the ink absorption module to move from the adsorption position to the release position.

11. The ink stack according to claim 7, characterized in that, The ink absorption module includes: A mounting seat, connected to the ink pad seat; An ink pad body, connected to the mounting seat; An adsorption structure, arranged in the mounting seat; and An ink pad sealing ring, connected to the ink pad body and surrounding the periphery of the adsorption structure; the ink pad sealing ring and the adsorption structure enclose to form the adsorption groove.

12. A printing device, characterized in that, It includes: A main body; A nozzle, connected to the main body; And An ink stack according to any one of claims 1 to 11, wherein the maintenance base of the ink stack is connected to the main body.

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