Automatic ink adding device and printing equipment with same

Abstract

The invention provides an automatic ink adding device and printing equipment with the same, the device comprises an ink box and a ball valve, ink is contained 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. And when the valve is in the closed state, the automatic stirring assembly stirs the ink in the ink box, so that the uniformity of the ink is improved.

Description

Technical Field

[0001] The invention relates to the technical field of ink adding devices, and in particular to an automatic ink adding device and a printing device having the same. Background Art

[0002] The ink cartridge is a key component in the printing equipment, responsible for storing ink and supplying ink to the printing press. During use, the operator needs to first pour the ink into the ink cartridge from the edge of the ink port and stir it manually to ensure that the ink can be evenly and appropriately applied to the printing medium through the roller.

[0003] During the operation of printing equipment, manual addition, stirring and replacement of ink are required. During this process, ink may spill onto the power cord, resulting in spots on the power cord, affecting quality. It also requires a certain amount of learning cost to become proficient in operation, which has a great impact on safety. In the process of using ink cartridges, the uniformity of the ink and the printing pressure need to be manually adjusted to ensure the printing quality. Existing ink cartridges are stirred manually, and it is difficult to control the stirring uniformity manually, and the amount of ink added is difficult to control manually. In addition, manual operation poses quality risks and safety risks.

[0004] Therefore, there is a need for an automatic ink adding device that can automatically stir and automatically control the amount of ink added, thereby eliminating the quality hazards and safety risks caused by manual ink addition. Summary of the invention

[0005] In order to overcome the problems existing in the related art, the purpose of the present invention 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 quality hazards and safety risks.

[0006] An automatic ink adding device comprises an ink box and a ball valve, wherein the ink box contains ink and the ball valve floats on the liquid surface of the ink; the ball valve is connected to a connector, and an end of the connector away from the ball valve is connected to a valve, and as the liquid level rises and falls, the ball valve periodically opens or closes the valve through the connector; an automatic stirring component is arranged in the ink box, and the automatic stirring component is used to stir the ink in the ink box.

[0007] When the amount of ink in the ink tank is small, the height of the ink liquid level is low. At this time, the height of the ball valve floating on the ink liquid level is low, and the connecting piece is separated from the valve, that is, the valve is in an open state. The external ink flows into the ink tank from the valve to replenish the ink into the ink tank. When the amount of ink in the ink tank is large, the height of the ink liquid level is high. At this time, the height of the ball valve floating on the ink liquid level is high, and the connecting piece blocks the valve, that is, the valve is in a closed state, and the external ink cannot flow into the ink tank from the valve. When the valve is in a closed state, the automatic stirring component stirs the ink in the ink tank to make the ink in the ink tank more uniform. The above device can automatically stir the ink, and the valve is periodically opened and closed according to the amount of ink in the ink tank to achieve automatic control of the amount of ink added, thereby eliminating the quality hazards and safety risks caused by manual addition of ink.

[0008] In a preferred technical solution of the present invention, a pipe is connected to the side wall of the ink box, the pipe is communicated with the ink box, and the pipe is used to guide the ink into the ink box.

[0009] The pipeline is used to connect the external ink storage structure and the ink tank, and the pipeline is used to form an oil supply channel so that the ink outside the ink tank flows into the ink tank through the pipeline.

[0010] In a preferred technical solution of the present invention, an end of the pipeline away from the ink box is connected to an ink barrel, the ink barrel contains ink, and the ink flows from the ink barrel into the pipeline.

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

[0012] In a preferred technical solution of the present invention, one end of the pipeline close to the ink tank is connected to the valve, and the valve is used to open or close the pipeline to control the pipeline to periodically drain the ink into the ink tank.

[0013] When the valve is opened, the ink box and the ink barrel are connected, and the ink in the ink barrel flows into the ink box through the pipeline to replenish the ink in the ink box; when the valve is closed, the ink box and the ink barrel are not connected, and the ink in the ink barrel cannot flow into the ink box through the pipeline.

[0014] In a preferred technical solution of the present invention, a stirring hole is provided on the top of the ink box, the stirring hole is communicated with the interior of the ink box, and the automatic stirring component is inserted into the stirring hole and enters into the interior of the ink box.

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

[0016] In a preferred technical solution of the present invention, the automatic stirring assembly includes a stirring rod and a motor, and 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 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, and both are preferably circular. The circular stirring hole facilitates the installation and operation of the stirring rod, and the stirring rod is inserted into the ink box through the stirring hole. After the stirring rod is inserted from the stirring hole, the first end of the stirring rod is immersed below the liquid surface of the ink and directly contacts the ink, so that the ink can be effectively stirred. This design ensures that the stirring rod can perform sufficient mixing operations in the entire layer below the liquid surface of the ink, avoiding uneven ink components due to inadequate stirring. After the stirring rod is inserted from the stirring hole, the first end of the stirring rod is immersed below the liquid surface of the ink and directly contacts the ink, so that the ink can be effectively stirred. This design ensures that the stirring rod can perform sufficient mixing operations in the entire layer below the liquid surface of the ink, avoiding uneven ink components due to inadequate stirring.

[0018] In a preferred technical solution of the present invention, the connecting member includes a connecting rod and a sealing portion, 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 portion; the sealing portion is adapted to the valve, and the sealing portion is used to periodically seal the valve.

[0019] The connecting rod serves to connect 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 drops with the ink level, the sealing part gradually separates from the valve, and the valve opening gradually increases until the valve is fully opened, at which time the ink in the ink barrel flows into the ink tank; 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 time the ink in the ink barrel cannot flow into the ink tank.

[0020] In a preferred technical solution of the present invention, the sealing portion is a sealing sheet, and both the sealing sheet and the valve are circular or regular polygonal.

[0021] If the sealing piece and the valve are both circular, the resistance encountered when the sealing piece is inserted into the valve can be reduced, thereby reducing the wear of the valve and increasing the service life of the valve. If the sealing piece and the valve are both regular polygons, the sealing piece can be evenly stressed when inserted into the valve, thereby improving the sealing effect.

[0022] In a preferred technical solution of the present invention, a mounting hole is provided on the side wall of the ink box, and the mounting hole is used to mount the ink box.

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

[0024] The present invention also provides a printing device, comprising the automatic ink adding device.

[0025] The beneficial effects of the present invention are:

[0026] The invention provides an automatic ink adding device, comprising an ink box and a ball valve, wherein the ink box contains ink, and the ball valve floats on the liquid surface of the ink; the ball valve is connected to a connector, and one end of the connector away from the ball valve is connected to a valve, and as the liquid surface rises and falls, the ball valve periodically opens or closes the valve through the connector; an automatic stirring component is arranged in the ink box, and the automatic stirring component is used to stir the ink in the ink box. When the amount of ink in the ink box is small, the height of the ink liquid surface is low, and the height of the ball valve floating on the ink liquid surface is low at this time, the connector is separated from the valve, that is, the valve is in an open state, and the external ink flows into the ink box from the valve to replenish the ink in the ink box. When the amount of ink in the ink box is large, the height of the ink liquid surface is high, and the height of the ball valve floating on the ink liquid surface is high at this time, and the connector blocks the valve, that is, the valve is in a closed state, and the external ink cannot flow into the ink box from the valve. When the valve is in a closed state, the automatic stirring component stirs the ink in the ink box, so that the ink in the ink box is more uniform. The above device can automatically stir the ink, and periodically open and close the valve according to the amount of ink in the ink box to automatically control the amount of ink added, thereby eliminating the quality hazards and safety risks caused by manual addition of ink. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of the automatic ink adding device of the present invention;

[0028] Figure 2 It is a front view of the automatic ink adding device of the present invention;

[0029] Figure 3 is a top view of the automatic ink adding device of the present invention;

[0030] Figure 4 It is a flow chart of the automatic ink adding method of the present invention.

[0031] Figure numerals: 1. ink box; 2. ball valve; 3. connecting piece; 4. valve; 5. pipeline; 6. ink barrel; 7. stirring hole; 8. stirring rod; 9. motor; 10. sealing plate; 11. mounting hole. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0033] Example 1

[0034] like Figure 1-Figure 3 As shown, this embodiment provides an automatic ink adding device, including an ink box 1 and a ball valve 2, wherein the ink box 1 is filled with ink, and the ball valve 2 floats on the liquid 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, and as the liquid level rises and falls, the ball valve periodically opens or closes the valve 4 through the connector; an automatic stirring component is arranged in the ink box 1, and the automatic stirring component is used to stir the ink in the ink box 1.

[0035] The ink box 1 is filled with ink, and the ink has a certain liquid level. A ball valve 2 floats on the ink liquid level. The ball valve 2 is subject to gravity and the buoyancy provided by the ink. When the external ink flows into the ink box 1 through the valve 4, the height of the ink liquid level rises; when the external ink does not flow into the ink box 1 through the valve 4, the height of the ink liquid level remains unchanged.

[0036] When the ink level in the ink box 1 is low, the amount of ink is small, and the height of the ball valve 2 in the ink box 1 is low. The connector 3 connected to the ball valve 2 is separated from the valve 4, that is, the valve 4 is in an open state, and the external ink flows into the ink box 1 through the valve 4 to replenish the ink in the ink box 1. When the ink level in the ink box 1 is high, the amount of ink is large, and the height of the ball valve 2 in the ink box 1 is high. The connector 3 connected to the ball valve 2 blocks the valve 4, that is, the valve 4 is in a closed state, and the external ink cannot flow into the ink box 1 through the valve 4, and the height of the ink level in the ink box 1 remains unchanged.

[0037] The automatic stirring component extends into the ink box 1. When the valve 4 is in a closed state, the automatic stirring component is started to stir the ink in the ink box 1 to improve the uniformity of the ink in the ink box 1, prevent the ink from gathering in a certain area in the ink box 1, and avoid the formation of spherical ink droplets due to the surface tension of the liquid ink, which makes the printing effect worse.

[0038] The connector 3 starts from the end connected to the ball valve 2 and extends toward the direction close to the valve 4. The connector 3 may be a rod-shaped structure or other structures, which are not limited here. The first end of the connector 3 is connected to the ball valve 2, and the second end of the connector 3 is adapted to the valve 4. When the ink level in the ink box 1 rises, the ball valve 2 rises with the ink level until the second end of the connector 3 is inserted into the valve 4 to block the valve 4.

[0039] With the automatic ink adding device of the present invention, when the ink level in the ink box 1 is low, the valve 4 can be automatically opened to allow the external ink to flow into the ink box 1. When the ink level in the ink box 1 is high, the valve 4 can be automatically closed to prevent the external ink from flowing into the ink box 1.

[0040] The present embodiment provides an automatic ink adding device, comprising an ink box 1 and a ball valve 2. The ink box 1 contains ink, and the ball valve 2 floats on the liquid 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 liquid surface rises and falls, the ball valve periodically opens or closes the valve 4 through the connector. An automatic stirring component is arranged in the ink box 1, and the automatic stirring component is used to stir the ink in the ink box 1. When the amount of ink in the ink box 1 is small, the height of the ink liquid surface is low. At this time, the height of the ball valve 2 floating on the ink liquid surface is low, and the connector 3 is separated from the valve 4, that is, the valve 4 is in an open state, and the external ink flows into the ink box 1 from the valve 4 to replenish the ink in the ink box 1. When the amount of ink in the ink box 1 is large, the height of the ink liquid surface is high. At this time, the height of the ball valve 2 floating on the ink liquid surface is high, and the connector 3 blocks the valve 4, that is, the valve 4 is in a closed state, and the external ink cannot flow into the ink box 1 from the valve 4. When the valve 4 is in the closed state, the automatic stirring component stirs the ink in the ink box 1 to make the ink in the ink box 1 more uniform. The above device can automatically stir the ink, and the valve 4 is periodically opened and closed according to the amount of ink in the ink box 1 to automatically control the amount of ink added, thereby eliminating the quality hazards and safety risks caused by manual addition of ink.

[0041] Example 2

[0042] like Figure 1-Figure 3 As shown, this embodiment provides an automatic ink adding device, including an ink box 1 and a ball valve 2, wherein the ink box 1 is filled with ink, and the ball valve 2 floats on the liquid 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, and as the liquid level rises and falls, the ball valve periodically opens or closes the valve 4 through the connector; an automatic stirring component is arranged in the ink box 1, and the automatic stirring component is used to stir the ink in the ink box 1.

[0043] A pipe 5 is connected to the side wall of the ink box 1 . The pipe 5 is in communication with the ink box 1 . The pipe 5 is used to guide ink into the ink box 1 .

[0044] An end of the pipeline 5 away from the ink box 1 is connected to an ink barrel 6 , and the ink barrel 6 contains ink, and the ink flows from the ink barrel 6 into the pipeline 5 .

[0045] One end of the pipe 5 close to the ink box 1 is connected to the valve 4 , and the valve 4 is used to open or close the pipe 5 to control the pipe 5 to periodically drain the ink into the ink box 1 .

[0046] The pipe 5 and the ink barrel 6 can be connected through a threaded interface. The ink outlet of the ink barrel 6 and one end of the pipe 5 are respectively processed with matching external threads and internal threads, and the connection is achieved by screwing the threads. The pipe 5 and the ink barrel 6 can also be connected by flanges. The connecting ends of the pipe 5 and the ink barrel 6 are respectively installed with flanges, and the two flanges are tightly connected together by bolts, and a sealing gasket is placed between the flanges. Furthermore, the connection between the pipe 5 and the ink box 1 can be threaded or flanged to achieve stable delivery of ink.

[0047] The pipe 5 connected between the ink box 1 and the ink barrel 6 has a certain curvature, the height of the ink box 1 is greater than the height of the ink barrel 6, the first end of the pipe 5 is connected to the ink box 1, the second end of the pipe 5 is connected to the ink barrel 6, and 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 barrel 6. When the ink pump is working, the ink in the ink barrel 6 can be pumped 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 barrel 6 under the action of gravity.

[0048] The first end of the pipe 5 is connected to a valve 4, and the opening and closing of the pipe 5 is controlled by the valve 4. When the valve 4 controls the pipe 5 to be in an open state, that is, when the first end of the pipe 5 is connected to the ink box 1, the ink is extracted by an ink pump, and the ink flows from the ink barrel 6 into the pipe 5, and then flows from the pipe 5 into the ink box 1. By using the ink pump, the ink can be continuously extracted into the ink box 1 through the pipe 5, ensuring a sufficient supply of ink in the ink box 1. Not only does it ensure the stable delivery of the ink, but it also makes the entire printing process smoother and more efficient. When the valve 4 controls the pipe 5 to be in a closed state, that is, when the first end of the pipe 5 is no longer connected to the ink box 1, the ink stops flowing from the pipe 5 into the ink box 1, thereby effectively preventing the ink from continuing to be injected into the ink box 1, and preventing the ink from overflowing and causing waste or unnecessary pollution.

[0049] The side wall of the ink box 1 of this embodiment is connected with a pipe 5, which is in communication with the ink box 1 and is used to drain the ink into the ink box 1. The end of the pipe 5 away from the ink box 1 is connected with an ink barrel 6, and the ink barrel 6 contains ink, and the ink flows into the pipe 5 from the ink barrel 6. The end of the pipe 5 close to the ink box 1 is connected with the valve 4, and the valve 4 is used to open or close the pipe 5 to control the pipe 5 to periodically drain the ink into the ink box 1. Before use, the operator fills the ink barrel 6 with sufficient ink, and accurately proportions the specific gravity of each liquid component in the ink according to the requirements of the printing process to ensure that the performance of the ink meets the printing standard. After the proportioning is completed, the valve 4 on the pipe 5 is opened, and the ink pump is started at the same time. The ink pump draws the ink from the ink barrel 6 through the pipe 5 and transports it to the ink box 1. The whole process has a high degree of automation and is easy to operate, which can effectively improve work efficiency and ensure the stability of ink supply.

[0050] Example 3

[0051] like Figure 1-Figure 3 As shown, this embodiment provides an automatic ink adding device, including an ink box 1 and a ball valve 2, wherein the ink box 1 is filled with ink, and the ball valve 2 floats on the liquid 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, and as the liquid level rises and falls, the ball valve periodically opens or closes the valve 4 through the connector; an automatic stirring component is arranged in the ink box 1, and the automatic stirring component is used to stir the ink in the ink box 1.

[0052] A stirring hole 7 is provided on the top of the ink box 1 , and the stirring hole 7 is communicated with the interior of the ink box 1 . The automatic stirring component is inserted into the stirring hole 7 and enters into the interior of the ink box 1 .

[0053] The automatic stirring assembly includes a stirring rod 8 and a motor 9. The stirring rod 8 is inserted below the liquid surface of the ink through the stirring hole 7. The first end of the stirring rod 8 is immersed below the liquid surface of the ink, and the second end of the stirring rod 8 is connected to the output shaft of the motor 9.

[0054] A stirring hole 7 is specially designed on the top of the ink box 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 facilitates the installation and operation of the stirring rod 8, and the stirring rod 8 is inserted into the ink box 1 through the stirring hole 7.

[0055] After the stirring rod 8 is inserted from the stirring hole 7, the first end of the stirring rod 8 is immersed below the liquid surface of the ink and directly contacts the ink, so that the ink can be effectively stirred. This design ensures that the stirring rod 8 can perform a sufficient mixing operation in the entire layer below the liquid surface of the ink, avoiding uneven ink composition caused by inadequate stirring.

[0056] The motor 9 is the power source of the entire stirring device, and its performance directly determines the stirring effect. The motor 9 transmits power to the stirring rod 8 through the output shaft, driving the stirring rod 8 to rotate in the ink. The speed of the motor 9 can be adjusted according to the viscosity of the ink, the stirring demand and the process requirements, so as to achieve precise control of the stirring speed.

[0057] The top of the ink box 1 of this embodiment is provided with a stirring hole 7, which is communicated with the inside of the ink box 1, and the automatic stirring component is inserted into the stirring hole 7 and enters the inside of the ink box 1. The automatic stirring component includes a stirring rod 8 and a motor 9, and the stirring rod 8 is inserted below the liquid surface of the ink through the stirring hole 7. The first end of the stirring rod 8 is immersed below the liquid surface of the ink, and the second end of the stirring rod 8 is connected to the output shaft of the motor 9. The top of the ink box 1 is provided with a stirring hole 7, and the stirring hole 7 is used to install the automatic stirring component to achieve uniform stirring of the ink. The automatic stirring component includes a stirring rod 8 and a motor 9, and the stirring rod 8 is inserted below the liquid surface of the ink through the stirring hole 7 to ensure that the ink can be stirred directly. The first end of the stirring rod 8 is immersed below the liquid surface of the ink, which is used to directly contact and stir the ink, and the second end of the stirring rod 8 is connected to the output shaft of the motor 9, and the stirring rod 8 is driven to rotate by the rotation of the motor 9, thereby achieving continuous stirring of the ink. The coordinated work of the motor 9 and the stirring rod 8 ensures that the ink is always kept in a uniformly mixed state in the ink box 1, avoiding the precipitation or separation of the ink components that may affect the printing quality. At the same time, the convenience of operation and the stirring efficiency are greatly improved, manual intervention is reduced, and the automation level of the entire device is improved.

[0058] Example 4

[0059] like Figure 1-Figure 3 As shown, this embodiment provides an automatic ink adding device, including an ink box 1 and a ball valve 2, wherein the ink box 1 is filled with ink, and the ball valve 2 floats on the liquid 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, and as the liquid level rises and falls, the ball valve periodically opens or closes the valve 4 through the connector; an automatic stirring component is arranged in the ink box 1, and the automatic stirring component is used to stir the ink in the ink box 1.

[0060] The connecting member 3 includes a connecting rod and a sealing portion, wherein 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 portion; the sealing portion is adapted to the valve 4 , and is used to periodically seal the valve 4 .

[0061] The sealing portion is a sealing sheet 10 , and both the sealing sheet 10 and the valve 4 are circular.

[0062] A mounting hole 11 is provided on the side wall of the ink box 1 , and the mounting hole 11 is used for mounting the ink box 1 .

[0063] The connecting rod is tilted, the first end of the connecting rod is fixedly connected, detachably connected or integrally formed with the ball valve 2, and the second end of the connecting rod is fixedly connected or detachably connected with the sealing sheet 10. The shape of the sealing sheet 10 is the same as the shape of the valve 4. The sealing sheet 10 can be circular or regular polygonal, which is not limited here. If the sealing sheet 10 and the valve 4 are both circular, the resistance encountered by the sealing sheet 10 when inserted into the valve 4 can be reduced, thereby reducing the wear of the valve 4 and increasing the service life of the valve 4. If the sealing sheet 10 and the valve 4 are both regular polygons, the sealing sheet 10 can be uniformly stressed when inserted into the valve 4, thereby improving the sealing effect.

[0064] The screws are inserted into the mounting holes 11 on the side wall of the ink tank 1 and the screw holes on the printing press, so that the ink tank 1 is mounted on the printing press. The ink tank 1 is used to supply ink to the printing press.

[0065] Preferably, an oil pump is provided in the ink box 1, and the valve 4 of the ink box 1 is connected to the ink barrel 6. As the number of printings of the printing press increases, the ink consumption in the ink box 1 increases, the ink level in the ink box 1 gradually decreases, and the ball valve 2 gradually drops, so that the valve 4 opens. When the valve 4 is opened, the oil pump in the ink box 1 is started, and the oil pump draws the external ink into the ink box 1, thereby replenishing the ink in the ink box 1.

[0066] Combined with the ball valve 2, connecting rod and sealing sheet 10 in the ink box 1, ink can be automatically added to the ink box 1 when the amount of ink in the ink box 1 is small, without manual operation, thereby reducing the cost of adding ink and improving the efficiency of adding ink.

[0067] The connecting member 3 of this embodiment includes a connecting rod and a sealing portion, wherein 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 portion; the sealing portion is adapted to the valve 4, and the sealing portion is used to periodically seal the valve 4. The sealing portion is a sealing sheet 10, and both the sealing sheet 10 and the valve 4 are circular or regular polygonal. If both the sealing sheet 10 and the valve 4 are circular, the resistance encountered by the sealing sheet 10 when inserted into the valve 4 can be reduced, thereby reducing the wear of the valve 4 and increasing the service life of the valve 4. If both the sealing sheet 10 and the valve 4 are regular polygons, the sealing sheet 10 can be uniformly stressed when inserted into the valve 4, thereby improving the sealing effect.

[0068] Example 5

[0069] This embodiment provides a printing device, including the automatic ink adding device described in any one of Embodiments 1 to 4. Figure 4 As shown, this embodiment also provides a method for automatically adding ink, based on the automatic ink adding device of any one of Embodiments 1 to 4, the method is applied to the printing device in this embodiment, and the method includes:

[0070] S1: The ink level in the ink tank gradually drops, the ball valve gradually drops, and the ball valve drives the valve to gradually open.

[0071] S2: The ink in the ink barrel flows into the ink box through the pipeline.

[0072] 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.

[0073] S4: When the valve is fully closed, the ink stays in the pipe.

[0074] The automatic ink adding device of the printing device starts from step S1, sequentially performs steps S2 and S3, and finally performs step S4. After performing step S4, the automatic ink adding device returns to step S1 and performs steps S1-S4 again. In this process, manual operation is not required, and automatic ink addition can be achieved, which reduces costs and improves processing efficiency.

[0075] In addition, since the automatic ink adding device of this embodiment relies on the buoyancy provided by the ink to the ball valve 2 and the connection between the ball valve 2 and the connecting rod to automatically open or close the valve 4, there is no need to set an ink height sensor in the ink box 1, thereby ensuring the space utilization of the ink box 1.

[0076] The method for automatically adding ink in this embodiment can automatically add ink to the ink box 1 according to the amount of remaining ink in the ink box 1. During the printing process of the printing press, the ink in the ink box 1 gradually decreases, the ink liquid level gradually decreases, the ball valve 2 gradually drops, and drives the connecting rod to rotate in a first direction. In this embodiment, the first direction is taken as a clockwise direction. During the clockwise rotation of the connecting rod, the valve 4 gradually opens, and the ink flows from the ink barrel 6 into the ink box 1. During the process of replenishing ink into the ink box 1, the ink in the ink box 1 gradually increases, the ink liquid level gradually rises, the ball valve 2 gradually rises, and drives the connecting rod to rotate in a second direction. In this embodiment, the second direction is taken as a counterclockwise direction. During the counterclockwise rotation of the connecting rod, the valve 4 gradually closes until the valve 4 is completely closed, at which time the ink in the ink barrel 6 cannot flow into the ink box 1 through the pipe 5.

[0077] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a restriction. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in the subsequent accompanying drawings.

[0078] It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would then be positioned "below" or "below" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used herein should be interpreted accordingly.

[0079] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic ink adding device, characterized in that: It comprises an ink box and a ball valve, wherein the ink box contains ink and the ball valve floats on the liquid 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, and as the liquid surface rises and falls, the ball valve periodically opens or closes the valve through the connector; an automatic stirring component is arranged in the ink box, and the automatic stirring component is used to stir the ink in the ink box.

2. The automatic ink adding device according to claim 1, characterized in that: The side wall of the ink box is connected with a pipeline, the pipeline is communicated with the ink box, and the pipeline is used to guide the ink into the ink box.

3. The automatic ink adding device according to claim 2, characterized in that: An end of the pipeline away from the ink box is connected to an ink barrel, the ink barrel contains 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: One end of the pipeline close to the ink tank is connected to the valve, and 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, characterized in that: A stirring hole is provided on the top of the ink box, the stirring hole is communicated with the interior of the ink box, and the automatic stirring component is inserted into the stirring hole and enters into the interior of the ink box.

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 to the output shaft of the motor.

7. The automatic ink adding device according to claim 1, characterized in that: The connecting member includes a connecting rod and a sealing portion, wherein 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 portion; the sealing portion is adapted to the valve, and is used to periodically seal the valve.

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

9. The automatic ink adding device according to claim 1, characterized in that: The side wall of the ink box is provided with a mounting hole, and the mounting hole is used for mounting the ink box.

10. A printing device, characterized in that: The invention comprises the automatic ink adding device according to any one of claims 1 to 9.

Images