Ink supply device, ink supply system and printer

Abstract

The utility model belongs to the technical field of printers, and discloses an ink supply device, an ink supply system and a printer, the ink supply device comprises a housing, an ink chamber, a negative pressure chamber and a blocking member, the housing is internally provided with a first accommodating cavity and a second accommodating cavity, and the first accommodating cavity and the second accommodating cavity are arranged along a first direction; the ink chamber is arranged in the first containing cavity and used for storing ink. The negative pressure chamber is arranged in the second accommodating cavity, the ink chamber is communicated with the negative pressure chamber, the negative pressure chamber is selectively communicated with the outside, and the negative pressure chamber comprises an extrusion part; the blocking piece is connected with the negative pressure chamber, and when the extrusion part deforms due to pressure, the negative pressure chamber communicates with the outside through the blocking piece, so that the blocking piece can prevent ink from leaking, and when an ink path needs to be maintained, the extrusion part is manually extruded, and the negative pressure environment in the negative pressure chamber is damaged; the ink can be conveyed to the outside through the ink chamber and the negative pressure chamber under the action of gravity, the difficulty of ink path maintenance is reduced, and the ink supply and printing stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, and in particular to an ink supply device, an ink supply system and a printer. Background Art

[0002] A printer is an important office and home device that is used to convert digital information into physical text or images. It is widely used in various printing tasks such as documents, reports, images, photos, etc. There are many types of printers, mainly including inkjet printers, laser printers, thermal printers, etc.

[0003] Existing industrial inkjet printers usually use a negative pressure generator to supply ink. The inkjet printer includes a primary ink bag, a secondary ink bag and a tertiary ink bag. The primary ink bag and the secondary ink bag are connected by a pipe, and the secondary ink bag and the tertiary ink bag are connected by a pipe. An electric pump is connected to the pipe between the primary ink bag and the secondary ink bag. The secondary ink bag is provided with a positive and negative pressure generator for replenishing ink to the tertiary ink bag to maintain a stable pressure between the tertiary ink bag and the nozzle.

[0004] However, in this ink supply method, the positive and negative pressure generators need to rely on electricity to operate, and the primary ink bags, secondary ink bags, and tertiary ink bags need to be heated to facilitate the flow of ink, which causes inconvenience in maintenance. Since the primary ink bags, secondary ink bags, and tertiary ink bags are connected in series, when the electrical components in the positive and negative pressure generators fail, it will cause the entire ink path to collapse, bringing great difficulties to the maintenance of the inkjet printer. Utility Model Content

[0005] The purpose of the utility model is to provide an ink supply device, an ink supply system and a printer, so as to solve the problem that the ink path of the inkjet printer is inconvenient to maintain.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] On the one hand, an ink supply device includes: a shell, a first accommodating chamber and a second accommodating chamber are opened inside the shell, and the first accommodating chamber and the second accommodating chamber are arranged along a first direction; an ink chamber, the ink chamber is arranged in the first accommodating chamber, and is used to store ink; a negative pressure chamber, the negative pressure chamber is arranged in the second accommodating chamber, the ink chamber is connected to the negative pressure chamber, the negative pressure chamber can be selectively connected to the outside world, and the negative pressure chamber includes an extrusion part; a blocking member, the blocking member is connected to the negative pressure chamber, and when the extrusion part is deformed by pressure, the negative pressure chamber is connected to the outside world through the blocking member.

[0008] Preferably, the ink supply device includes a liquid inlet pipe, which is arranged on the side of the ink chamber away from the negative pressure chamber and is connected to the ink chamber, for inputting ink into the ink chamber; and / or, the ink supply device includes a liquid outlet pipe, which is arranged on the side of the negative pressure chamber away from the ink chamber and is connected to the negative pressure chamber, for outputting ink to the outside.

[0009] Preferably, when the ink supply device includes a liquid outlet pipe, the blocking member is provided on the liquid outlet pipe so that the liquid outlet pipe can selectively communicate with the outside.

[0010] Preferably, the ink supply device includes a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are respectively connected to the two ends of the shell, the liquid inlet pipe is connected to the ink chamber, and the liquid outlet pipe is connected to the negative pressure chamber, the ink chamber is connected to a first connecting pipe and a second connecting pipe, one end of the first connecting pipe is connected to the liquid inlet pipe, and the other end is connected to the ink chamber, for transporting the ink in the liquid inlet pipe into the ink chamber, one end of the second connecting pipe is connected to the ink chamber, and the other end is connected to the negative pressure chamber, for transporting the ink in the ink chamber into the negative pressure chamber.

[0011] Preferably, the second connecting tube includes an inclined portion, which is arranged at an angle to the first direction, and the two ends of the inclined portion are respectively connected to the ink chamber and the negative pressure chamber; or, the second connecting tube includes a horizontal portion and an inclined portion, the horizontal portion and the inclined portion are connected, the end of the horizontal portion facing away from the inclined portion is connected to the ink chamber, and the end of the inclined portion facing away from the horizontal portion is connected to the negative pressure chamber.

[0012] Preferably, one end of the first connecting tube facing away from the liquid inlet tube is connected to the bottom of the ink chamber; and / or one end of the second connecting tube connected to the negative pressure chamber extends toward the center of the negative pressure chamber.

[0013] Preferably, the blocking member is a sealing ring made of elastic material, the sealing ring is provided with an exhaust hole, and when the extrusion part is deformed by pressure, the negative pressure chamber is connected to the outside through the exhaust hole; and / or, the extrusion part is made of elastic material.

[0014] On the other hand, an ink supply system includes a primary ink bag, a secondary ink bag, a tertiary ink bag, a nozzle and the ink supply device as described above, wherein the primary ink bag is connected to the secondary ink bag, and a plurality of tertiary ink bags are provided, each of the tertiary ink bags is connected to all the secondary ink bags, and a plurality of the tertiary ink bags are arranged in parallel, and the ink supply device is respectively connected to the tertiary ink bags and the nozzle, for transporting the ink in the tertiary ink bag to the nozzle.

[0015] Preferably, the primary ink bag and the secondary ink bag are arranged in one-to-one correspondence, and each of the secondary ink bags is provided with a plurality of second pins on the side facing the tertiary ink bag, and each of the second pins is provided with a one-to-one correspondence with each of the tertiary ink bags, and each of the tertiary ink bags is provided with a third pin on the side facing the secondary ink bag, and the number of the third pins on each of the tertiary ink bags is equal to the number of the secondary ink bags, and each of the secondary ink bags is connected to each of the tertiary ink bags through the second pins and the third pins.

[0016] On the other hand, a printer includes a body and the ink supply system as described above, wherein the ink supply system is disposed inside the body.

[0017] Beneficial effects of the utility model:

[0018] An ink supply device includes a shell, an ink chamber, a negative pressure chamber and a blocking member, wherein a first accommodating chamber and a second accommodating chamber are provided inside the shell, and the first accommodating chamber and the second accommodating chamber are arranged along a first direction; the ink chamber is arranged in the first accommodating chamber for storing ink; the negative pressure chamber is arranged in the second accommodating chamber, the ink chamber is communicated with the negative pressure chamber, and the negative pressure chamber can be selectively communicated with the outside world, and the negative pressure chamber includes an extrusion part; the blocking member is connected to the negative pressure chamber, and when the extrusion part is deformed by pressure, the negative pressure chamber is communicated with the outside world through the blocking member.

[0019] In this way, when a negative pressure environment is maintained in the negative pressure chamber, the ink will not leak to the outside through the ink supply device under the action of the blocking member. When the ink circuit needs to be maintained, the extrusion part is squeezed and the negative pressure environment in the negative pressure chamber is destroyed, which enables the ink to flow under the action of its own gravity and achieve stable ink supply, eliminating the uncontrollability of electrical components for ink circuit maintenance, reducing the difficulty of ink circuit maintenance, and increasing the stability of ink supply and printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of an ink supply device in one embodiment of the present utility model;

[0021] Figure 2 This is a partial structural diagram of an ink supply system in one embodiment of the present utility model;

[0022] Figure 3 It is a side view of an ink supply system in one embodiment of the present utility model.

[0023] In the picture:

[0024] 1. Shell; 11. First accommodating chamber; 12. Second accommodating chamber; 2. Ink chamber; 21. First connecting tube; 22. Second connecting tube; 221. Horizontal portion; 222. Inclined portion; 3. Negative pressure chamber; 31. Extrusion portion; 4. Blocking member; 5. Liquid inlet pipe; 6. Liquid outlet pipe; 7. Primary ink bag; 8. Secondary ink bag; 81. Second pin; 9. Tertiary ink bag; 91. Third pin; X, first direction. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0026] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0027] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0028] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0029] See Figure 1The utility model provides an ink supply device, including a shell 1, an ink chamber 2, a negative pressure chamber 3 and a blocking member 4. A first accommodating chamber 11 and a second accommodating chamber 12 are opened inside the shell 1, and the first accommodating chamber 11 and the second accommodating chamber 12 are arranged along a first direction X; the ink chamber 2 is arranged in the first accommodating chamber 11 for storing ink; the negative pressure chamber 3 is arranged in the second accommodating chamber 12, the ink chamber 2 is communicated with the negative pressure chamber 3, and the negative pressure chamber 3 can be selectively communicated with the outside world, and the negative pressure chamber 3 includes an extrusion part 31; the blocking member 4 is connected to the negative pressure chamber 3, and when the extrusion part 31 is deformed by pressure, the negative pressure chamber 3 is communicated with the outside world through the blocking member 4.

[0030] In this embodiment, the shell 1 is a vertically arranged hollow rectangular structure, the ink chamber 2 is vertically arranged, the negative pressure chamber 3 is a cylindrical structure, the length direction of the ink chamber 2 is parallel to the length direction of the shell 1; the first direction X is a vertical downward direction.

[0031] It should be noted that when the ink supply device is in the initial state, the negative pressure chamber 3 is a negative pressure environment, and the ink chamber 2 is connected to the ink supply end. Under the action of the negative pressure environment and the blocking member 4, the ink will not flow naturally to the outside through the ink supply device; by squeezing the extrusion portion 31, the blocking member 4 is connected to the outside, thereby destroying the negative pressure environment in the negative pressure chamber 3, so that the ink fills the ink chamber 2 under the action of its own gravity and is discharged to the outside along the ink chamber 2 and the negative pressure chamber 3, thereby completing the maintenance of the ink path.

[0032] In this way, compared with the positive and negative pressure generator, by manually squeezing the extrusion part 31, the negative pressure environment in the negative pressure chamber 3 is destroyed, so that the ink can automatically flow under the action of its own gravity and realize ink supply, eliminating the uncontrollability of electrical components for ink circuit maintenance, and can reduce the noise generated by electrical components when working, reduce the difficulty of ink circuit maintenance, and increase the stability of ink supply and printing.

[0033] It can be understood that only one cavity can be opened inside the shell 1, so that the ink chamber 2 and the negative pressure chamber 3 are both located inside the cavity, and the specific setting positions of the ink chamber 2 and the negative pressure chamber 3 can be adjusted according to actual needs; the shell 1 can be an integrally molded structure, or it can include an upper shell 1 and a lower shell 1 that are interlocked, so as to facilitate maintenance and replacement of the ink chamber 2 and the negative pressure chamber 3.

[0034] See Figure 1 In some embodiments, the ink supply device includes an inlet pipe 5 and an outlet pipe 6. The inlet pipe 5 is disposed on the side of the ink chamber 2 facing away from the negative pressure chamber 3 and communicates with the ink chamber 2 for supplying ink to the ink chamber 2. The outlet pipe 6 is disposed on the side of the negative pressure chamber 3 facing away from the ink chamber 2 and communicates with the negative pressure chamber 3 for discharging ink to the outside. Furthermore, a blocking member 4 is disposed on the outlet pipe 6 to selectively connect the outlet pipe 6 to the outside.

[0035] In this embodiment, the liquid inlet pipe 5 and the liquid outlet pipe 6 are both arranged vertically, and the liquid inlet pipe 5 and the liquid outlet pipe 6 are respectively arranged at the two ends of the shell 1, the input end of the liquid outlet pipe 6 is inserted into the negative pressure chamber 3 and connected with the negative pressure chamber 3, and the blocking member 4 is arranged at the output end of the liquid outlet pipe 6.

[0036] In this way, by squeezing the squeezing part 31, the ink can automatically flow to the outside through the liquid inlet pipe 5, the ink chamber 2, the negative pressure chamber 3, and the liquid outlet pipe 6, which can facilitate the staff to judge whether the ink circuit is normal by observing the ink flow in the liquid outlet pipe 6, and thus enable the ink circuit to supply ink normally, improve the stability of the ink circuit, and reduce the difficulty of ink circuit maintenance; when the squeezing part 31 is not squeezed, under the action of the blocking member 4 and the negative pressure environment, the ink will not flow to the outside through the ink chamber 2 and the negative pressure chamber 3, thereby avoiding ink leakage.

[0037] It can be understood that the liquid inlet pipe 5 and the liquid outlet pipe 6 can also be set at an angle to the first direction X, and are not limited to a vertical setting. In this embodiment, the liquid inlet pipe 5 and the liquid outlet pipe 6 are both set vertically to shorten the movement path of the ink, facilitate stable ink supply, and reduce maintenance difficulty.

[0038] See Figure 1 In some embodiments, the liquid inlet pipe 5 and the liquid outlet pipe 6 are respectively connected to the two ends of the housing 1. The liquid inlet pipe 5 is in communication with the ink chamber 2, and the liquid outlet pipe 6 is in communication with the negative pressure chamber 3. The ink chamber 2 is connected to a first connecting pipe 21 and a second connecting pipe 22. The first connecting pipe 21 is in communication with the liquid inlet pipe 5 at one end and with the ink chamber 2 at the other end, and is used to transport ink in the liquid inlet pipe 5 into the ink chamber 2. The second connecting pipe 22 is in communication with the ink chamber 2 at one end and with the negative pressure chamber 3 at the other end, and is used to transport ink in the ink chamber 2 into the negative pressure chamber 3. In this embodiment, the first connecting pipe 21 is arranged at an angle, that is, the first connecting pipe 21 is arranged at an angle with respect to the first direction X.

[0039] It should be noted that when the extrusion part 31 is squeezed, the ink enters the ink chamber 2 through the first connecting tube 21. The ink chamber 2 can store a certain amount of ink. At the same time, the ink in the ink chamber 2 can flow into the negative pressure chamber 3 through the second connecting tube 22 and flow to the outside through the liquid outlet pipe 6, completing the maintenance of the ink path. When continuous ink supply is required subsequently, since the liquid inlet pipe 5 continuously transports ink to the inside of the ink chamber 2, the liquid pressure of the ink can overcome the resistance of the blocking member 4, so that the negative pressure chamber 3 is connected with the liquid outlet pipe 6 through the blocking member 4, and the ink is continuously output from the liquid outlet pipe 6 to the outside, realizing normal ink supply.

[0040] In this way, the first connecting tube 21 is arranged at an angle, so that the ink can automatically flow into the ink chamber 2 under the action of its own gravity. By arranging the first connecting tube 21 and the second connecting tube 22, the liquid inlet tube 5, the ink chamber 2, the negative pressure chamber 3 and the liquid outlet pipe 6 can be connected, so that after the negative pressure environment inside the negative pressure chamber 3 is destroyed, the ink can stably flow to the outside through the liquid outlet pipe 6; when the negative pressure environment is maintained inside the negative pressure chamber 3, the ink will not be transported to the outside through the liquid outlet pipe 6 under the action of the blocking member 4, thereby avoiding ink leakage.

[0041] See Figure 1 In some embodiments, the second connecting tube 22 includes a horizontal portion 221 and an inclined portion 222. The horizontal portion 221 and the inclined portion 222 are connected. The end of the horizontal portion 221 facing away from the inclined portion 222 is connected to the ink chamber 2, and the end of the inclined portion 222 facing away from the horizontal portion 221 is connected to the negative pressure chamber 3. The horizontal portion 221 is disposed above the inclined portion 222, and the inclined portion 222 extends toward the center of the negative pressure chamber 3. The first connecting tube 21, the horizontal portion 221, and the inclined portion 222 are all located on the same side of the ink chamber 2.

[0042] In this way, when the negative pressure environment in the negative pressure chamber 3 is destroyed, the ink can flow into the negative pressure chamber 3 through the horizontal part 221 and the inclined part 222. The inclined part 222 can guide the flow of ink, so that the ink enters the negative pressure chamber 3 and is stored at the bottom of the negative pressure chamber 3, making it easier for the ink to flow to the outside through the negative pressure chamber 3 and the liquid outlet pipe 6.

[0043] See Figure 1 In some embodiments, the end of the first connecting tube 21 facing away from the liquid inlet tube 5 (i.e., the end of the horizontal portion 221 facing away from the inclined portion 222) is connected to the bottom of the ink chamber 2, and the end of the second connecting tube 22 connected to the negative pressure chamber 3 extends toward the center of the negative pressure chamber 3.

[0044] In this way, when the ink flow is small, the ink flows to the ink chamber 2 through the first connecting tube 21 and can then flow directly to the inside of the negative pressure chamber 3 through the second connecting tube 22. When the ink flow is large, the ink chamber 2 can store the ink while ensuring that part of the ink is output through the second connecting tube 22, which facilitates stable ink supply and reduces the difficulty of maintaining the ink circuit for staff.

[0045] See Figure 1 In some embodiments, the blocking member 4 is a sealing ring made of elastic material, and the sealing ring is provided with an exhaust hole (not shown in the figure). When the extrusion portion 31 is deformed by pressure, the negative pressure chamber 3 is connected to the outside through the exhaust hole. The extrusion portion 31 is made of elastic material.

[0046] It should be noted that when there is a negative pressure environment inside the negative pressure chamber 3, the external atmospheric pressure will compress the exhaust hole, forcing the exhaust hole to close, so that the negative pressure chamber 3 remains closed, and the negative pressure environment inside the negative pressure chamber 3 is not easily affected by the outside world, thereby avoiding ink leakage; when maintaining the ink path, the extrusion part 31 of the negative pressure chamber 3 is squeezed to destroy the negative pressure environment inside the negative pressure chamber 3, and the internal space of the negative pressure chamber 3 is gradually reduced, and the internal pressure gradually tends to the external air pressure. The exhaust hole opens due to the gradual reduction of the pressure difference inside the negative pressure chamber 3, thereby realizing the connection between the negative pressure chamber 3 and the outside world, and allowing the ink to flow smoothly through the liquid outlet pipe 6 to the outside world.

[0047] In this way, by manually squeezing the squeezing part 31, the uncertainty of the electrical components when maintaining the ink circuit can be reduced, the difficulty of maintaining the ink circuit can be reduced, and the state of the ink circuit can be judged by observing the ink flow in the liquid outlet tube 6, thereby improving maintenance efficiency.

[0048] It is understandable that a valve can also be provided at the exhaust hole to facilitate the control of the connection between the negative pressure chamber 3 and the outside world, and to ensure that the negative pressure chamber 3 has good sealing performance when it is not connected to the outside world. The specific structure of the blocking member 4 can be flexibly adjusted according to actual needs, so that the negative pressure chamber 3 can be selectively connected to the outside world, and will not be elaborated here; the extrusion part 31 can also be set to an elastic material that is easy to deform (such as rubber, soft plastic, etc.), so that the staff can control the connection relationship between the negative pressure chamber 3 and the outside world.

[0049] See Figure 2 and Figure 3 The utility model also provides an ink supply system, including a primary ink bag 7, a secondary ink bag 8, a tertiary ink bag 9, a nozzle (not shown in the figure) and an ink supply device. The primary ink bag 7 is connected to the secondary ink bag 8, and a plurality of tertiary ink bags 9 are provided. Each tertiary ink bag 9 is connected to all the secondary ink bags 8, and a plurality of tertiary ink bags 9 are arranged in parallel. The ink supply device is respectively connected to the tertiary ink bag 9 and the nozzle, and is used to transport the ink in the tertiary ink bag 9 to the nozzle.

[0050] In this embodiment, four primary ink bags 7 and four secondary ink bags 8 are provided, and the primary ink bags 7 and the secondary ink bags 8 are connected by a hose. Each tertiary ink bag 9 is connected to all secondary ink bags 8 by a hose. The output end of the tertiary ink bag 9 is connected to the liquid inlet pipe 5, and the input end of the nozzle is connected to the liquid outlet pipe 6.

[0051] It should be noted that the four primary ink bags 7 can store cyan ink, magenta ink, yellow ink and black ink respectively.

[0052] In this way, the three-level ink bags 9 are arranged in parallel, so that when one of the three-level ink bags 9 has an abnormality, it will not affect the entire ink path. By squeezing the extrusion part 31, the ink in the corresponding three-level ink bag 9 can be transported to the nozzle, realizing precise maintenance of the ink path, reducing the number of maintenance and maintenance difficulty, and increasing the stability of printing ink supply.

[0053] It is understandable that the number of the primary ink bags 7 can be flexibly adjusted according to actual needs and is not limited to four. It can also be five, six, eight, etc., which will not be listed in detail here.

[0054] See Figure 2 and Figure 3 In some embodiments, the primary ink bag 7 and the secondary ink bag 8 are arranged in one-to-one correspondence, and a plurality of second pins 81 are provided on the side of each secondary ink bag 8 facing the tertiary ink bag 9. Each second pin 81 is arranged in one-to-one correspondence with each tertiary ink bag 9, and a third pin 91 is provided on the side of each tertiary ink bag 9 facing the secondary ink bag 8. The number of third pins 91 on each tertiary ink bag 9 is equal to the number of secondary ink bags 8, and each secondary ink bag 8 is connected to each tertiary ink bag 9 through the second pin 81 and the third pin 91.

[0055] In this embodiment, each tertiary ink bag 9 is provided with four third pins 91, and the four third pins 91 are respectively connected to the corresponding second pins 81 on the four secondary ink bags 8 through hoses, so that the ink in the four secondary ink bags 8 can all enter the tertiary ink bag 9, and the number of second pins 81 on each secondary ink bag 8 is equal to the number of tertiary ink bags 9.

[0056] In this way, the ink in the primary ink bag 7 can flow into different tertiary ink bags 9 through the secondary ink bag 8, making it easier for the tertiary ink bag 9 to stably transport the ink to the nozzle, so that the nozzle can be stably supplied with ink, thereby improving the stability of printing.

[0057] The utility model also provides a printer, comprising a body (not shown in the figure) and an ink supply system, wherein the ink supply system is arranged inside the body.

[0058] Example 2

[0059] The difference between this embodiment and the first embodiment lies in the specific structure of the second connecting pipe 22 .

[0060] Specifically, the second connecting tube 22 includes an inclined portion 222 that is angled relative to the first direction X. The two ends of the inclined portion 222 are connected to the ink chamber 2 and the negative pressure chamber 3, respectively. In other words, ink output from the ink chamber 2 can flow directly into the negative pressure chamber 3 through the inclined portion 222 under the action of its own gravity.

[0061] In this way, when the negative pressure environment in the negative pressure chamber 3 is destroyed, the ink can quickly flow into the negative pressure chamber 3 and be output to the outside through the liquid outlet pipe 6, so as to achieve stable output of the ink.

[0062] It is understandable that the angle of the inclined portion 222, the connection position of the inclined portion 222 and the ink chamber 2, and the connection position of the inclined portion 222 and the negative pressure chamber 3 can all be adjusted according to actual needs and will not be elaborated here.

[0063] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An ink supply device, characterized in that: include: A shell (1), wherein a first accommodating chamber (11) and a second accommodating chamber (12) are provided inside the shell (1), and the first accommodating chamber (11) and the second accommodating chamber (12) are arranged along a first direction (X); an ink chamber (2), the ink chamber (2) being arranged in the first accommodating cavity (11) and being used for storing ink; A negative pressure chamber (3), the negative pressure chamber (3) is arranged in the second accommodating cavity (12), the ink chamber (2) is connected to the negative pressure chamber (3), the negative pressure chamber (3) is selectively connected to the outside world, and the negative pressure chamber (3) includes an extrusion portion (31); A blocking member (4) is connected to the negative pressure chamber (3); when the extrusion portion (31) is deformed by pressure, the negative pressure chamber (3) communicates with the outside through the blocking member (4).

2. The ink supply device according to claim 1, wherein: The ink supply device includes a liquid inlet pipe (5), which is arranged on a side of the ink chamber (2) away from the negative pressure chamber (3) and is connected to the ink chamber (2) for inputting ink into the ink chamber (2); and / or, the ink supply device includes a liquid outlet pipe (6), which is arranged on a side of the negative pressure chamber (3) away from the ink chamber (2) and is connected to the negative pressure chamber (3) for outputting ink to the outside.

3. The ink supply device according to claim 2, characterized in that: When the ink supply device includes a liquid outlet pipe (6), the blocking member (4) is arranged on the liquid outlet pipe (6) so that the liquid outlet pipe (6) can be selectively communicated with the outside world.

4. The ink supply device according to claim 1, wherein: The ink supply device includes a liquid inlet pipe (5) and a liquid outlet pipe (6), the liquid inlet pipe (5) and the liquid outlet pipe (6) are respectively connected to two ends of the shell (1), the liquid inlet pipe (5) is connected to the ink chamber (2), and the liquid outlet pipe (6) is connected to the negative pressure chamber (3), and the ink chamber (2) is connected to a first connecting pipe (21) and a second connecting pipe (22), one end of the first connecting pipe (21) is connected to the liquid inlet pipe (5), and the other end is connected to the ink chamber (2), and is used to transport the ink in the liquid inlet pipe (5) into the ink chamber (2), and the second connecting pipe (22) has one end connected to the ink chamber (2), and the other end is connected to the negative pressure chamber (3), and is used to transport the ink in the ink chamber (2) into the negative pressure chamber (3).

5. The ink supply device according to claim 4, characterized in that: The second connecting tube (22) comprises an inclined portion (222), the inclined portion (222) is arranged at an angle with the first direction (X), and two ends of the inclined portion (222) are respectively connected to the ink chamber (2) and the negative pressure chamber (3); Alternatively, the second connecting tube (22) includes a horizontal portion (221) and an inclined portion (222), the horizontal portion (221) and the inclined portion (222) are connected, the end of the horizontal portion (221) away from the inclined portion (222) is connected to the ink chamber (2), and the end of the inclined portion (222) away from the horizontal portion (221) is connected to the negative pressure chamber (3).

6. The ink supply device according to claim 4, characterized in that: The end of the first connecting tube (21) facing away from the liquid inlet tube (5) is connected to the bottom of the ink chamber (2); and / or the end of the second connecting tube (22) connected to the negative pressure chamber (3) extends toward the center of the negative pressure chamber (3).

7. The ink supply device according to any one of claims 1 to 6, characterized in that: The blocking member (4) is a sealing ring made of elastic material, and the sealing ring is provided with an exhaust hole. When the extrusion portion (31) is deformed by pressure, the negative pressure chamber (3) is connected to the outside through the exhaust hole; and / or, the extrusion portion (31) is made of elastic material.

8. An ink supply system, characterized in that: The invention comprises a primary ink bag (7), a secondary ink bag (8), a tertiary ink bag (9), a nozzle and an ink supply device according to any one of claims 1 to 7, wherein the primary ink bag (7) is connected to the secondary ink bag (8), a plurality of tertiary ink bags (9) are provided, each of the tertiary ink bags (9) is connected to all the secondary ink bags (8), and a plurality of the tertiary ink bags (9) are arranged in parallel, and the ink supply device is respectively connected to the tertiary ink bags (9) and the nozzle, and is used for transporting the ink in the tertiary ink bag (9) to the nozzle.

9. The ink supply system according to claim 8, characterized in that: The primary ink bag (7) and the secondary ink bag (8) are arranged in a one-to-one correspondence; a plurality of second plug pins (81) are arranged on the side of each secondary ink bag (8) facing the tertiary ink bag (9); each second plug pin (81) is arranged in a one-to-one correspondence with each tertiary ink bag (9); a third plug pin (91) is arranged on the side of each tertiary ink bag (9) facing the secondary ink bag (8); the number of the third plug pins (91) on each tertiary ink bag (9) is equal to the number of the secondary ink bag (8); each secondary ink bag (8) is connected to each tertiary ink bag (9) through the second plug pins (81) and the third plug pin (91).

10. A printer, characterized in that: The invention comprises a body and an ink supply system according to any one of claims 8 to 9, wherein the ink supply system is arranged inside the body.

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