Ink bag structure capable of inflating and pressing ink

Abstract

The ink bag structure comprises an ink bag main body and an inching valve, a soft membrane and a partition plate are arranged in the ink bag main body, the inner space of the ink bag main body is divided into an inflation cavity, a flow guide cavity and an ink storage cavity through the soft membrane and the partition plate, a flow guide hole is formed in the partition plate, the inflation cavity is connected with an inflation device, and the ink storage cavity is connected with the inflation device. The ink storage cavity is connected with the spray head assembly, the inflation device is connected with the inflation cavity through the inflation channel, the inching valve is installed on the side, facing the ink storage cavity, of the soft diaphragm, and the end, away from the soft diaphragm, of the inching valve penetrates through the flow guide hole and extends into the flow guide cavity so that the inching valve can be driven to move to open or close the flow guide hole through swinging of the soft diaphragm. Compared with the prior art, the ink cartridge has the advantages that the inflation cavity is inflated through the inflation device, so that the soft diaphragm drives the inching valve to move, the ink storage cavity is communicated with the flow guide cavity, ink is pressed into the nozzle assembly through the ink cartridge assembly, and the effect of discharging air in the nozzle assembly is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ink bag technical field especially, relate to an ink bag structure of inflatable pressure ink. BACKGROUND

[0002] The main function of ink bag is filtering and containing ink, ink bag is generally used in inkjet printer, plotter, compound machine or some marking equipment, ink bag sprays ink on paper through nozzle assembly, the ink in ink bag will be transported to nozzle assembly through pipeline according to the need of printing task, the design of ink bag helps to prevent ink from drying or deteriorating, ensure that clear, bright printing effect can be obtained when printing;

[0003] The general printing inkjet equipment in prior art needs to discharge gas in nozzle and introduce ink before use, the discharge of gas in nozzle mainly realizes by external suction, but the residual air in nozzle assembly will affect the entry of ink into nozzle assembly and cause the deterioration of printing effect due to the inaccurate control of suction force, and the frequent suction of air in nozzle assembly will cause certain damage to nozzle assembly, in use, the structure unit for suction cleaning is complex and bulky as a whole, and the cost is high and the maintenance is cumbersome. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of ink bag structures of inflatable pressure ink, to at least solve one of the technical problems in prior art.

[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model provides an ink bag structure of inflatable pressure ink, comprising:

[0006] An ink bag body is provided with a soft diaphragm and a partition plate inside, to separate the internal space of the ink bag body into an inflation cavity, a flow guide cavity and an ink storage cavity by the soft diaphragm and the partition plate, the ink storage cavity is located between the inflation cavity and the flow guide cavity, and a flow guide hole is opened on the partition plate to communicate the flow guide cavity with the ink storage cavity through the flow guide hole;

[0007] An inflation passage, an ink inlet passage and an ink outlet passage are provided on the ink bag body, the inflation passage communicates with the inflation cavity, the inflation passage is connected with an inflation device, the ink inlet passage communicates with the flow guide cavity, and the ink inlet passage is connected with a cartridge assembly, one end of the ink outlet passage communicates with the ink storage cavity, and the other end of the ink outlet passage is connected with a nozzle assembly.

[0008] A micro valve is installed on the side of the soft diaphragm facing the ink storage chamber, and an end of the micro valve away from the soft diaphragm penetrates through the flow guide hole and extends into the flow guide chamber, so that the micro valve is moved to open or close the flow guide hole by the swing of the soft diaphragm, thereby realizing the communication or isolation between the ink storage chamber and the flow guide chamber.

[0009] Further, a filter screen is arranged in the flow guide chamber.

[0010] Further, the micro valve comprises:

[0011] A connecting rod is arranged in the ink storage chamber, and one end of the connecting rod is connected with the soft diaphragm, and the other end of the connecting rod penetrates through the flow guide hole and extends into the flow guide chamber;

[0012] A reset spring is sleeved on the connecting rod, and one end of the reset spring abuts against the soft diaphragm, and the other end of the reset spring abuts against the partition plate;

[0013] A sealing plate is arranged in the flow guide chamber, and the sealing plate is arranged at the other end of the connecting rod, so that the sealing plate and the partition plate are in close contact or spaced apart, thereby realizing the closing or opening of the flow guide hole.

[0014] Further, the micro valve further comprises a sealing spring arranged in the flow guide chamber, one end of the sealing spring abuts against the sealing plate, and the other end of the sealing spring abuts against the inner wall of the flow guide chamber, so that the sealing plate is tightly attached to the partition plate by the elastic force of the sealing spring.

[0015] Further, the micro valve further comprises an abutting plate installed on the side of the soft diaphragm facing the ink storage chamber, and one end of the connecting rod is connected with the soft diaphragm through the abutting plate.

[0016] Further, an elastic sealing member is arranged between the partition plate and the sealing plate.

[0017] Further, the inflation device comprises a first air pump and a first hose, one end of the first hose is connected with the inflation channel, and the other end of the first hose is connected with the output part of the first air pump, so that the first air pump inflates the inflation chamber through the first hose and the inflation channel, and the soft diaphragm swings on the side facing the ink storage chamber to drive the connecting rod to move towards the flow guide chamber, so that the sealing plate is spaced apart from the partition plate, thereby realizing the opening of the flow guide hole.

[0018] Further, the ink cartridge assembly comprises:

[0019] a second soft tube and a third soft tube are respectively communicated with the second ink cartridge, one end of the second soft tube is communicated with the ink inlet channel;

[0020] a second air pump, an output of the second air pump is connected with one end of the third soft tube away from the second ink cartridge and is used for inflating the second ink cartridge.

[0021] Further, the ink head assembly comprises:

[0022] a fourth soft tube, one end of the fourth soft tube is communicated with the ink outlet channel;

[0023] a printer ink head, the printer ink head is connected with the other end of the fourth soft tube.

[0024] Further, the micro valve is mounted at the center of the soft diaphragm, and the flow guide hole is arranged corresponding to the center of the soft diaphragm.

[0025] From the above technical solution, it can be seen that the ink bag structure capable of inflating and pressing ink of the utility model realizes the communication state between the ink storage cavity and the flow guide cavity by inflating the inflation cavity through the inflation device, the soft diaphragm swings to the side of the ink storage cavity because the air pressure in the inflation cavity gradually increases relative to the air pressure in the ink storage cavity, the soft diaphragm drives the micro valve to move and opens the flow guide hole, the ink cartridge assembly delivers ink from the flow guide cavity into the ink storage cavity, the ink in the ink storage cavity is extruded into the ink head assembly through the ink outlet channel and pushes the air in the ink head assembly out, the inflation device is closed to make the inflation cavity communicate with the outside when the air in the ink head assembly is exhausted and the ink can be stably output from the ink head assembly, the soft diaphragm swings to the side of the inflation cavity, the soft diaphragm drives the micro valve to move and closes the flow guide hole at this time, the ink storage cavity and the flow guide cavity are in the state of being cut off, and the ink no longer enters the ink storage cavity, thereby realizing the effect of discharging the gas in the ink head assembly and introducing the ink into the ink head assembly before printing.

[0026] In addition to the above functions, the embodiment also has the effect of continuously supplying ink to the ink head assembly, specifically, when the ink head assembly continuously sprays ink, the air pressure in the ink storage cavity gradually decreases as the ink in the ink storage cavity gradually decreases, the inflation cavity communicates with the outside at this time, the air pressure in the inflation cavity is unchanged and equal to the atmospheric pressure, the soft diaphragm swings to the side of the ink storage cavity, the soft diaphragm drives the micro valve to move and opens the flow guide hole, thereby realizing the communication state between the ink storage cavity and the flow guide cavity, the ink flows into the ink storage cavity from the flow guide hole, the air pressure in the ink storage cavity gradually increases as the ink in the ink storage cavity gradually increases, the soft diaphragm swings to the side of the inflation cavity, the flow guide hole is closed under the action of the spring, the ink storage cavity and the flow guide cavity are in the state of being cut off, and the ink no longer enters the ink storage cavity.

[0027] In order to make the technical concept and other purposes, advantages, features and effects of the utility model more clearly understood, the preferred embodiments will be described in the following specific embodiments, and the detailed description will be made with the help of the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to make the technical concept and other purposes, advantages, features and effects of the utility model more clearly understood, the preferred embodiments will be described in the following specific embodiments, and the detailed description will be made with the help of the drawings.

[0029] Figure 1 is a structure diagram of an ink bag structure capable of inflating and pressing ink provided by an embodiment of the present application;

[0030] Figure 2 is a structure diagram of an ink bag structure capable of inflating and pressing ink provided by another embodiment of the present application;

[0031] Among them, the above drawings include the following reference signs:

[0032] 100, ink bag main body; 110, soft diaphragm; 120, partition plate; 121, flow guide hole; 130, inflation cavity; 140, flow guide cavity; 141, filter screen; 150, ink storage cavity; 160, inflation passage; 170, ink inlet passage; 180, ink outlet passage;

[0033] 200, inflation device; 210, first air pump; 220, first hose;

[0034] 300, ink cartridge assembly; 310, secondary ink cartridge; 320, second hose; 330, third hose; 340, second air pump;

[0035] 400, nozzle assembly; 410, fourth hose; 420, printer nozzle;

[0036] 500, micro valve; 510, abutment plate; 520, connecting rod; 530, reset spring; 540, sealing plate; 6, sealing spring. DETAILED DESCRIPTION

[0037] In order to make the technical concept and other purposes, advantages, features and effects of the utility model more clearly understood, the preferred embodiments will be described in the following specific embodiments, and the detailed description will be made with the help of the drawings.

[0038] Referring to Figures 1 to 2 The embodiment provides an ink bag structure capable of inflating and printing ink, which comprises:

[0039] The ink bag body 100 is provided with a soft diaphragm 110 and a partition plate 120, so as to divide the internal space of the ink bag body 100 into an inflation cavity 130, a flow guide cavity 140 and an ink storage cavity 150 by the soft diaphragm 110 and the partition plate 120, the ink storage cavity 150 is located between the inflation cavity 130 and the flow guide cavity 140, and the partition plate 120 is provided with a flow guide hole 121, so as to communicate the flow guide cavity 140 and the ink storage cavity 150 through the flow guide hole 121;

[0040] The ink bag body 100 is provided with an inflation passage 160, an ink inlet passage 170 and an ink outlet passage 180, the inflation passage 160 communicates with the inflation cavity 130, the inflation passage 160 is connected with an inflation device 200, the ink inlet passage 170 communicates with the flow guide cavity 140, and the ink inlet passage 170 is connected with an ink box assembly 300, one end of the ink outlet passage 180 communicates with the ink storage cavity 150, and the other end of the ink outlet passage 180 is connected with a nozzle assembly 400;

[0041] The micro valve 500 is installed on the side of the soft diaphragm 110 facing the ink storage cavity 150, one end of the micro valve 500 away from the soft diaphragm 110 penetrates through the flow guide hole 121 and extends into the flow guide cavity 140, so as to open or close the flow guide hole 121 by the swing of the soft diaphragm 110 to drive the micro valve 500 to move, thereby realizing the communication state or the isolation state between the ink storage cavity 150 and the flow guide cavity 140.

[0042] It can be seen that the inflatable ink bag structure of the present embodiment is inflated by the inflation device 200 through the inflation channel 160 into the inflation cavity 130. Since the air pressure in the inflation cavity 130 gradually increases relative to the air pressure in the ink storage cavity 150, the soft diaphragm 110 will swing to the side of the ink storage cavity 150. Thus, the soft diaphragm 110 will move the micro valve 500 and open the flow guide hole 121. This achieves the state of communication between the ink storage cavity 150 and the flow guide cavity 140. The ink cartridge assembly 300 will deliver ink from the flow guide cavity 140 into the ink storage cavity 150. Thus, the ink in the ink storage cavity 150 will be squeezed into the printhead assembly 400 through the ink outlet channel 180 and push the air in the printhead assembly 400 out. When the air in the printhead assembly 400 is exhausted and the ink can be stably output from the printhead assembly 400, the inflation device 200 is closed to make the inflation cavity 130 communicate with the outside. The soft diaphragm 110 is driven by the return spring 530 to swing to the side of the inflation cavity 130 for resetting. At this time, the soft diaphragm 110 moves the micro valve 500 to close the flow guide hole 121. Specifically, the sealing plate 540 is driven by the elastic force of the sealing spring 6 to close the flow guide hole 121. This achieves the state of isolation between the ink storage cavity 150 and the flow guide cavity 140. The ink no longer enters the ink storage cavity 150. Thus, the effect of discharging the gas in the printhead assembly 400 and introducing the ink into the printhead assembly 400 before printing is achieved.

[0043] In addition to the above functions, the present embodiment also has the effect of continuously supplying ink to the printhead assembly 400. Specifically, when the printhead assembly 400 continuously ejects ink, the air pressure in the ink storage cavity 150 will gradually decrease as the ink in the ink storage cavity 150 gradually decreases. At this time, the inflation cavity 130 communicates with the outside, and the air pressure in the inflation cavity 130 remains unchanged and is equal to atmospheric pressure. The soft diaphragm 110 will swing to the side of the ink storage cavity 150. The soft diaphragm 110 will move the micro valve 500 and open the flow guide hole 121. This achieves the state of communication between the ink storage cavity 150 and the flow guide cavity 140. The ink flows into the ink storage cavity 150 through the flow guide hole 121. As the ink in the ink storage cavity 150 gradually increases, the air pressure in the ink storage cavity 150 will gradually increase. The soft diaphragm 110 will swing to the side of the inflation cavity 130. The flow guide hole 121 is closed under the action of the sealing spring 6. The ink storage cavity 150 and the flow guide cavity 140 are in the state of isolation. The ink no longer enters the ink storage cavity 150.

[0044] It should be noted that in the present embodiment, the internal and external communication of the inflation cavity 130 is achieved by disassembling and assembling the inflation device 200, in other embodiments, a gas valve can be provided on the ink bag main body 100 or a device capable of inflation and deflation can be used to replace the inflation device 200 to achieve the internal and external communication of the inflation cavity 130, and these improvements should be considered as the protection scope of the present application; in the present embodiment, the soft diaphragm 110 is made of a gas-impermeable material to prevent gas and liquid exchange between the inflation cavity 130 and the ink storage cavity 150, the soft diaphragm 110 is made of a gas-impermeable and deformable material to prevent gas exchange between the inflation cavity 130 and the ink storage cavity 150, the gas-impermeable feature of the soft diaphragm 110 prevents gas exchange between the inflation cavity 130 and the ink storage cavity 150, thereby avoiding the failure of the ink bag due to gas exchange between the inflation cavity 130 and the ink storage cavity 150, in addition, the soft diaphragm 110 also has a deformable ability, which makes the soft diaphragm 110 more sensitive to the pressure fluctuations between the inflation cavity 130 and the ink storage cavity 150, the sealing plate 540 can be integrated with the connecting rod 520, the material of the soft diaphragm 110 can be rubber, plastic or other composite materials, and the material of the soft diaphragm 110 should not be limited to this embodiment and will not be described in detail.

[0045] Further, the filter screen 141 is arranged in the flow guide cavity 140, which can prevent larger particles (such as precipitates, bubbles or other impurities in the ink) from entering the flow guide cavity 140, thereby protecting the nozzle assembly 400 and other precision components from being blocked or damaged, and ensuring that the ejected ink is more uniform by filtering impurities, thereby improving the printing quality, extending the service life of the ink, reducing the need for frequent replacement or cleaning of the nozzle, and thereby reducing maintenance costs.

[0046] In the present embodiment, the micro valve 500 includes a connecting rod 520, a return spring 530 and a sealing plate 540, the connecting rod 520 is located in the ink storage cavity 150, one end of the connecting rod 520 is connected with the soft diaphragm 110, the other end of the connecting rod 520 extends into the flow guide cavity 140 through the flow guide hole 121, the return spring 530 is sleeved on the connecting rod 520, one end of the return spring 530 abuts against the soft diaphragm 110, the other end of the return spring 530 abuts against the partition plate 120, and the sealing plate 540 is located in the flow guide cavity 140 and is arranged at the other end of the connecting rod 520 to achieve the closing or opening of the flow guide hole 121 by the mutual abutment or spacing of the sealing plate 540 and the partition plate 120.

[0047] Further, as shown in FIG. 6, the filter screen 141 is arranged in the flow guide cavity 140, which can prevent larger particles (such as precipitates, bubbles or other impurities in the ink) from entering the flow guide cavity 140, thereby protecting the nozzle assembly 400 and other precision components from being blocked or damaged, and ensuring that the ejected ink is more uniform by filtering impurities, thereby improving the printing quality, extending the service life of the ink, reducing the need for frequent replacement or cleaning of the nozzle, and thereby reducing maintenance costs. Figure 1As shown, the micro valve 500 further comprises a sealing spring 6 arranged in the flow guide cavity 140, one end of the sealing spring 6 abuts against the sealing plate 540, and the other end of the sealing spring 6 abuts against the inner wall of the flow guide cavity 140, so as to make the sealing plate 540 tightly adhere to the partition plate 120 by the elastic force of the sealing spring 6. Alternatively, the two ends of the sealing spring 6 can be fixedly connected with the sealing plate 540 and the inner wall of the flow guide cavity 140 respectively, so as to avoid the instability or easy shaking of the sealing spring 6 placed in the flow guide cavity 140. Of course, the sealing spring 6 can be arranged in other ways. Figure 1 and Figure 2 The structural principle diagram of the embodiment is only a schematic diagram, and the specific assembly details between the various parts can adopt the existing conventional manner, which will not be described here.

[0048] In other embodiments, as shown in Figure 1 the difference between the embodiment shown in Figure 2 and the embodiment shown in the embodiment mainly lies in that the embodiment increases the sealing spring 6 in the flow guide cavity 140, one end of the sealing spring 6 abuts against the sealing plate 540, and the other end of the sealing spring 6 abuts against the inner wall of the flow guide cavity 140, so as to make the sealing plate 540 tightly adhere to the partition plate 120 by the elastic force of the sealing spring 6. Among them, the sealing spring 6 is usually in a compressed state, when the micro valve 500 needs to be kept in a state of closing the flow guide hole 121, the sealing spring 6 can make the sealing plate 540 tightly adhere to the partition plate 120, so that the sealing closing effect of the micro valve 500 on the flow guide hole 121 is better, and the ink is less likely to leak from the flow guide cavity 140 into the ink storage cavity 150.

[0049] When the soft diaphragm 110 swings to the side of the ink storage cavity 150, the connecting rod 520 also moves to the side of the flow guide cavity 140, at this time the reset spring 530 is in a compressed state, the sealing plate 540 and the partition plate 120 are spaced apart from each other, and the flow guide hole 121 is in an open state. Similarly, when the soft diaphragm 110 swings to the side of the inflation cavity 130, the sealing plate 540 and the partition plate 120 adhere to each other, and the flow guide hole 121 is in a closed state.

[0050] Further, the micro valve 500 further comprises an abutting plate 510, the abutting plate 510 is installed on the side of the soft diaphragm 110 facing the ink storage cavity 150, and one end of the connecting rod 520 is connected with the soft diaphragm 110 through the abutting plate 510; the abutting plate 510 can reduce the direct contact between the connecting rod 520 and the soft diaphragm 110, reduce the wear caused by friction, improve the durability of the system, and provide a stable support for the connecting rod 520, so that the connecting rod 520 is not easy to deviate during movement, thereby ensuring the reliability and accuracy of the system.

[0051] Further, an elastic seal is arranged between the partition plate 120 and the sealing plate 540, which is usually made of a material with good elasticity and wear resistance, such as silicone, fluororubber or polyurethane, etc. These materials can restore to their original shape when compressed and stretched, thereby ensuring the sealing effect. The elastic seal between the partition plate 120 and the sealing plate 540 ensures that no ink leaks between the ink storage chamber 150 and the flow guide chamber 140 when the flow guide hole 121 is in the closed state, thereby maintaining the sealing between the ink storage chamber 150 and the flow guide chamber 140.

[0052] Further, the inflation device 200 includes a first air pump 210 and a first hose 220, one end of the first hose 220 being connected to the inflation channel 160, and the other end of the first hose 220 being connected to the output of the first air pump 210. The first air pump 210 inflates the inflation chamber 130 through the first hose 220 and the inflation channel 160, causing the soft diaphragm 110 to swing towards the side of the ink storage chamber 150 and drive the connecting rod 520 to move towards the flow guide chamber 140, so as to achieve the spacing between the sealing plate 540 and the partition plate 120 and thus open the flow guide hole 121.

[0053] Further, the ink cartridge assembly 300 includes a secondary ink cartridge 310 and a second air pump 340, the secondary ink cartridge 310 being respectively connected with a second hose 320 and a third hose 330, the other end of the second hose 320 being connected with the ink inlet channel 170, and the output of the second air pump 340 being connected with the end of the third hose 330 away from the secondary ink cartridge 310 and being used for inflating the secondary ink cartridge 310.

[0054] When the flow guide hole 121 is open, the flow guide chamber 140 is connected with the ink storage chamber 150, and the ink flows out of the secondary ink cartridge and sequentially flows through the second hose 320, the ink inlet channel 170 and the flow guide chamber 140, and finally flows into the ink storage chamber 150 through the flow guide hole 121. The second air pump 340 inflates the secondary ink cartridge 310 through the third hose 330, so that the ink can be squeezed into the printhead, and the air in the printhead assembly 400 is further emptied.

[0055] Further, the printhead assembly 400 includes a fourth hose 410 and a printer printhead 420, one end of the fourth hose 410 being connected with the ink outlet channel 180, and the printer printhead 420 being connected with the other end of the fourth hose 410.

[0056] The ink outlet channel 180 and the printer nozzle 420 are connected by the fourth hose 410, so that the ink can flow from the ink storage cavity 150 to the printer nozzle 420 through the fourth hose 410, and the printer nozzle 420 is continuously supplied with ink, wherein the printer nozzle 420 has basic functions such as ink suction, atomization and ink ejection, and the printer nozzle 420 is a prior art which will not be described in detail here, and the nozzle assembly 400 is installed at the bottom of the ink storage cavity 150, so that the ink in the ink storage cavity 150 will not be accumulated for a long time, thereby affecting the ink ejection effect.

[0057] Further, the micro valve 500 is installed at the center of the soft diaphragm 110, and the flow guide hole 121 is arranged corresponding to the center of the soft diaphragm 110, since the soft diaphragm 110 is installed on the inner wall of the ink cartridge main body 100 around the periphery, when the air pressure of the inflation cavity 130 and the ink storage cavity 150 changes, the swing amplitude of the center of the soft diaphragm 110 is the largest relative to the swing amplitude of the periphery of the soft diaphragm 110, by installing the micro valve 500 at the center of the soft diaphragm 110, it can be ensured that the micro valve 500 can respond quickly when the air pressure of the inflation cavity 130 and the flow guide cavity 140 changes, and this design makes the micro valve 500 more sensitive in response to air pressure fluctuations, thereby achieving faster opening and closing.

[0058] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects:

[0059] The inflation device 200 inflates the inflation cavity 130 through the inflation channel 160, since the air pressure in the inflation cavity 130 gradually increases relative to the air pressure in the ink storage cavity 150, the soft diaphragm 110 will swing to the side of the ink storage cavity 150, so that the soft diaphragm 110 will drive the micro valve 500 to move and open the flow guide hole 121, so that the ink storage cavity 150 and the flow guide cavity 140 are in a communication state, and the ink cartridge assembly 300 will deliver the ink into the ink storage cavity 150 from the flow guide cavity 140, so that the ink in the ink storage cavity 150 will be squeezed into the nozzle assembly 400 through the ink outlet channel 180 and push the air in the nozzle assembly 400 out, when the air in the nozzle assembly 400 is exhausted, i.e. the ink can be stably output from the nozzle assembly 400, the inflation device 200 is closed to make the inflation cavity 130 communicate with the outside, the soft diaphragm 110 will swing to the side of the inflation cavity 130, at this time the soft diaphragm 110 drives the micro valve 500 to move to close the flow guide hole 121, so that the ink storage cavity 150 and the flow guide cavity 140 are in a state of being cut off, and the ink no longer enters the ink storage cavity 150, so that the effect of discharging the gas in the nozzle assembly 400 and introducing the ink into the nozzle assembly 400 before printing is realized;

[0060] In addition to the above functions, the embodiment has the effect of continuously supplying ink to the nozzle assembly 400. Specifically, when the nozzle assembly 400 continuously ejects ink, as the ink in the ink storage cavity 150 gradually decreases, the air pressure in the ink storage cavity 150 also gradually decreases. At this time, the air charging cavity 130 is in communication with the outside, the air pressure in the air charging cavity 130 is unchanged and equal to atmospheric pressure, the soft diaphragm 110 swings to one side of the ink storage cavity 150, the soft diaphragm 110 drives the micro valve 500 to move and open the flow guide hole 121, so that the ink storage cavity 150 and the flow guide cavity 140 are in communication state, the ink flows into the ink storage cavity 150 from the flow guide hole 121, as the ink in the ink storage cavity 150 gradually increases, the air pressure in the ink storage cavity 150 gradually increases, the soft diaphragm 110 swings to one side of the air charging cavity 130, and the flow guide hole 121 is closed under the action of the spring, the ink storage cavity 150 and the flow guide cavity 140 are in a state of isolation, and the ink no longer enters the ink storage cavity 150.

[0061] The above is the preferred embodiment of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which are also considered within the scope of the present application.

[0062] Unless specifically stated otherwise, the relative arrangements of parts and steps, numerical expressions, and numerical values set forth in the examples herein are not limiting of the scope of the application. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and not of limitation. The detailed description herein discloses only the best application of the present application and the application of such improvements as come within the scope of the application. In this regard, no individual element or act is intended to be indispensable, nor is any combination of elements or acts intended to be exclusive. In the description and drawings, like or similar elements are identified with the same reference numerals throughout the several figures and the written description. Any example described herein as having a particular value should be interpreted as having any other value, unless otherwise specifically stated. Thus, other examples of the example embodiments can have different values. It is noted that like or similar elements and features are identified across the drawings via the use of like reference characters. Therefore, wherein specific details of the application are described with respect to the embodiments, it is contemplated that modifications, and variations of the application can be effected therein and that such modifications and variations are considered to be within the scope of the application.

[0063] For purposes of the description hereinafter, spatial or directional terms, such as "above", "below", "top", "bottom", "upper", "lower", and the like, can be used with reference to the illustrated orientation of one element with respect to another element as shown in the figures. It will be understood that the spatial and directional terms are used for purposes of the description and the description is made with the understanding that the elements can be inverted or otherwise positioned in other orientations and that the descriptions made herein can be interpreted in light of such alternative positions.

[0064] In this specification, the terms "longitudinal", "lateral", "top", "bottom", "inner", "outer", "central", "axial", "radial", "circumferential" and the like are used merely to facilitate description of the application and are not intended to limit or impose specific orientations or configurations unless specifically so indicated. It is to be understood that the application can assume various alternative orientations and configurations, and that the descriptions made herein are in terms of the exemplary embodiments and that it is meant to encompass all possible configurations of the application.

Claims

1. An inflatable ink bladder structure for use in an ink jet printer, the structure comprising: The application relates to an ink sac assembly. The ink sac body (100) is provided with a soft diaphragm (110) and a partition plate (120), so that the ink sac body (100) is divided into an inflation cavity (130), a flow guide cavity (140) and an ink storage cavity (150) by the soft diaphragm (110) and the partition plate (120), the ink storage cavity (150) is located between the inflation cavity (130) and the flow guide cavity (140), and a flow guide hole (121) is formed in the partition plate (120) to communicate the flow guide cavity (140) with the ink storage cavity (150) through the flow guide hole (121). The ink sac body (100) is provided with an inflation channel (160), an ink inlet channel (170) and an ink outlet channel (180), the inflation channel (160) communicates with the inflation cavity (130), the inflation channel (160) is connected with an inflation device (200), the ink inlet channel (170) communicates with the flow guide cavity (140), and the ink inlet channel (170) is connected with an ink cartridge assembly (300), one end of the ink outlet channel (180) communicates with the ink storage cavity (150), and the other end of the ink outlet channel (180) is connected with a nozzle assembly (400). A micro valve (500) is arranged on the side of the soft diaphragm (110) facing the ink storage cavity (150), one end of the micro valve (500) away from the soft diaphragm (110) penetrates through the flow guide hole (121) and extends into the flow guide cavity (140), so that the micro valve (500) is driven to move to open or close the flow guide hole (121) through the swing of the soft diaphragm (110), and the ink storage cavity (150) and the flow guide cavity (140) are in a communication state or a cut-off state.

2. The gas inflatable ink bladder structure of claim 1, wherein, The flow guide cavity (140) is provided with a filter screen (141).

3. An inflatable ink bladder structure according to any one of claims 1 to 2, wherein, The micro valve (500) comprises: A connecting rod (520) located in the ink storage cavity (150), one end of the connecting rod (520) is connected with the soft diaphragm (110), and the other end of the connecting rod (520) penetrates through the flow guide hole (121) and extends into the flow guide cavity (140); A reset spring (530) sleeved on the connecting rod (520), one end of the reset spring (530) abuts against the soft diaphragm (110), and the other end of the reset spring (530) abuts against the partition plate (120); A sealing plate (540) located in the flow guide cavity (140), and the sealing plate (540) is arranged at the other end of the connecting rod (520), so that the flow guide hole (121) is closed or opened by the mutual abutment or spacing of the sealing plate (540) and the partition plate (120).

4. The gas inflatable ink bladder structure of claim 3, wherein, The micro valve (500) further comprises a sealing spring (6) arranged in the flow guide cavity (140), one end of the sealing spring (6) abutting against the sealing plate (540), and the other end of the sealing spring (6) abutting against the inner wall of the flow guide cavity (140), so that the sealing plate (540) is tightly attached to the partition plate (120) by the elastic force of the sealing spring (6).

5. The gas inflatable ink bladder structure of claim 3, wherein, The micro valve (500) further comprises an abutting plate (510) mounted on the side of the soft diaphragm (110) facing the ink storage cavity (150), and one end of the connecting rod (520) is connected with the soft diaphragm (110) through the abutting plate (510).

6. The gas inflatable ink bladder structure of claim 3, wherein, An elastic sealing member is arranged between the partition plate (120) and the sealing plate (540).

7. The gas inflatable ink bladder structure of claim 3, wherein, The inflation device (200) comprises a first air pump (210) and a first hose (220), one end of the first hose (220) being connected with the inflation channel (160), and the other end of the first hose (220) being connected with the output of the first air pump (210), so that the first air pump (210) inflates the inflation cavity (130) through the first hose (220) and the inflation channel (160), and the side of the soft diaphragm (110) facing the ink storage cavity (150) swings to drive the connecting rod (520) to move towards the flow guide cavity (140), so that the sealing plate (540) is spaced apart from the partition plate (120) to open the flow guide hole (121).

8. The gas inflatable ink bladder structure of any of claims 1 to 2, wherein, The ink cartridge assembly (300) comprises: A secondary ink cartridge (310) having a second hose (320) and a third hose (330) connected thereto, respectively, and the other end of the second hose (320) being connected with the ink inlet channel (170); A second air pump (340) having an output connected with the end of the third hose (330) away from the secondary ink cartridge (310) and used for inflating the secondary ink cartridge (310).

9. The gas inflatable ink bladder structure of any of claims 1 to 2, wherein, The printhead assembly (400) comprises: A fourth hose (410) having one end connected with the ink outlet channel (180); A printer printhead (420) connected with the other end of the fourth hose (410).

10. The gas inflatable ink bladder structure of any of claims 1 to 2, wherein, The micro valve (500) is arranged at the center of the soft diaphragm (110), and the flow guide hole (121) is arranged corresponding to the center of the soft diaphragm (110).

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