Ink supply system for biochemical printer and chip synthesis printing system

Abstract

The utility model discloses an ink supply system for a biochemical printer and a chip synthesis printing system. Wherein the ink supply system comprises a visual ink box, the interior of the visual ink box is provided with a monomer ink loading chamber and an activating agent ink loading chamber which are independently arranged, and the two chambers are respectively connected with a connector on a spray head; the single ink adding pipeline device comprises a first ink adding assembly, a first connector and a second connector, the first connector and the second connector can be clamped, one end of the first connector communicates with the single ink loading cavity, and the second connector is connected with the first ink adding assembly; the activating agent ink adding pipeline device comprises a second ink adding assembly, a third connector and a fourth connector, the third connector and the fourth connector can be clamped, one end of the third connector is communicated with the activating agent ink loading cavity, and the fourth connector is connected with the second ink adding assembly; one-way valves are mounted in the third clamping part and the first clamping part; the pressure source device is used for providing negative pressure matched with the spray head. The system is simple in structure, flexible in ink adding, low in cost, long in service life and capable of effectively improving printing quality and efficiency.

Description

Technical Field

[0001] This disclosure relates to the field of DNA chip synthesis and printing technology, and in particular to an ink supply system and a chip synthesis and printing system for a biochemical printer. Background Technology

[0002] Traditional inkjet printing cartridges are typically designed as a single cavity and made of aluminum, primarily for handling large volumes of traditional inks that have long shelf life. However, this design is clearly inadequate when dealing with the small amounts of ink required for DNA printing that have short shelf life.

[0003] First, DNA ink requires very little ink per use, while traditional secondary ink cartridges are too large, resulting in unnecessary ink waste and storage space occupation. Second, DNA ink has a short shelf life, requiring the secondary ink cartridge to be completely emptied after each use to avoid contamination and deterioration, which traditional automatic ink supply systems cannot effectively achieve.

[0004] In addition, DNA ink is corrosive and can damage traditional aluminum cartridges, affecting ink quality and print quality. Therefore, existing designs cannot meet the special requirements of DNA printing for ink management and cartridge materials. Utility Model Content

[0005] In view of this, the present disclosure provides an ink supply system and a chip synthesis printing system for a biochemical printer, which at least partially solves the problems in the prior art where existing designs cannot meet the special requirements of DNA printing for ink management and secondary ink cartridge materials.

[0006] In a first aspect, embodiments of this disclosure provide an ink supply system for a biochemical printer, comprising:

[0007] The visible ink cartridge has an independently configured individual ink loading chamber and an activator ink loading chamber inside. The individual ink loading chamber and the activator ink loading chamber are respectively connected to the corresponding interfaces on the print head through pipelines.

[0008] A single ink filling pipeline device includes a first ink filling component, a first connector, and a second connector. One end of the first connector is connected to the single ink loading chamber, and the other end has a first engaging portion. One end of the second connector has a second engaging portion that matches the first engaging portion, and the other end is connected to the first ink filling component.

[0009] An activator ink filling pipeline device includes a second ink filling component, a third connector, and a fourth connector. One end of the third connector is connected to the activator ink loading chamber, and the other end has a third engaging portion. One end of the fourth connector has a fourth engaging portion that matches the third engaging portion, and the other end is connected to the second ink filling component. A one-way valve is installed in both the third engaging portion and the first engaging portion.

[0010] A pressure source device used to provide negative pressure that matches the nozzle.

[0011] Optionally, the visible ink cartridge includes a cartridge body and a cover plate disposed on the top of the cartridge body. The cover plate has a first through hole and a second through hole that are matched with the single ink loading chamber and the activator ink loading chamber. One end of the first connector is connected to the first through hole through a pipe. One end of the third connector is connected to the second through hole through a pipe.

[0012] The single ink loading chamber and the activator ink loading chamber are located inside the box, and the longitudinal axes of the single ink loading chamber and the activator ink loading chamber are parallel to the longitudinal axis of the box.

[0013] The top of the box has a first annular groove and a second annular groove that respectively match the single ink loading chamber and the activator ink loading chamber. An annular elastic sealing ring is installed in both the first annular groove and the second annular groove.

[0014] The side of the box has a first ink outlet and a second ink outlet that are respectively connected to the single ink loading chamber and the activator ink loading chamber.

[0015] Optionally, a first through hole is provided between the monomer ink loading chamber and the activator ink loading chamber;

[0016] The side of the box body is provided with a second through hole, and the pressure source device is connected to the second through hole through a pipeline.

[0017] Optionally, the distance between the first through hole and the bottom of the cover plate is H11, and the height of the box is H21, where 0 < H11 / H21 < 0.1;

[0018] The second through hole is set at the same height as the first through hole.

[0019] Optionally, the monomer ink loading chamber is isolated from the activator ink loading chamber;

[0020] The side of the single ink loading chamber is provided with a first pressure hole;

[0021] A second pressure hole is provided on the side of the activator ink loading chamber;

[0022] The pressure source device is connected to the first pressure port and the second pressure port via a transmission pipeline assembly; the transmission pipeline assembly includes a main pipeline connected to the pressure source device and a first sub-pipeline and a second sub-pipeline arranged in parallel, one end of the first sub-pipeline is connected to the main pipeline and the other end is connected to the first pressure port; one end of the second sub-pipeline is connected to the main pipeline and the other end is connected to the second pressure port.

[0023] The distance between the first pressure hole and the bottom of the cover plate is H12, and the height of the box is H21, where 0 < H12 / H21 < 0.1;

[0024] The distance between the second pressure hole and the bottom of the cover plate is H13, and the height of the box is H21, where 0 < H13 / H21 < 0.1.

[0025] Optionally, the size of the visible ink cartridge is set to match the size of the printhead;

[0026] The distance between the bottom of the visible ink cartridge and the bottom of the printhead is h, where 200mm ≤ h ≤ 300mm.

[0027] Optionally, the visible ink cartridge is positioned directly above the printhead;

[0028] The first ink outlet is matched with the bottom of the single ink loading chamber;

[0029] The first ink outlet is connected to the first inlet of the printhead via a first pipeline, and a first filter is installed on the first pipeline.

[0030] The second ink outlet is matched with the bottom of the activator ink loading chamber;

[0031] The second ink outlet is connected to the second inlet of the printhead via a second pipeline, and a second filter is installed on the second pipeline.

[0032] The first ink outlet and the second ink outlet are matched with the first inlet and the second inlet of the printhead.

[0033] Optionally, a first manual valve is provided between the first filter and the first ink outlet;

[0034] A second manual valve is provided between the second filter and the second ink outlet.

[0035] Optionally, the ink supply system further includes an overflow ink cartridge disposed between the visible ink cartridge and the pressure source device, wherein the pressure source device is connected to the visible ink cartridge through the overflow ink cartridge;

[0036] The volume ratio of the overflow ink cartridge to the buffer gas cylinder in the pressure source device is Δ, where 0.5 ≤ Δ ≤ 1.

[0037] Secondly, this application discloses a chip synthesis printing system, including: at least two sets of the ink supply system for a biochemical printer, at least two printhead assemblies, a mounting plate, and a locking component;

[0038] At least two ink supply systems for the biochemical printer described herein are set up independently;

[0039] The mounting plate has at least two receiving slots, and at least two sets of the visual ink cartridges are arranged side by side in the at least two receiving slots;

[0040] The locking component has at least two elastic locking parts, and at least two sets of overflow ink cartridges are correspondingly installed on at least two of the elastic locking parts.

[0041] The ink supply system for a biochemical printer disclosed in this application uses a visible ink cartridge with independently configured individual ink loading chambers and activator ink loading chambers. This allows for precise control of the capacity of each chamber, avoiding ink waste caused by excessive capacity in traditional auxiliary ink cartridges. The independent configuration of each chamber allows for optimized design to meet the small-volume requirements of DNA ink, ensuring the exact amount of ink used each time, thereby reducing unnecessary ink waste and storage space occupation. One-way valves are installed in the first and third locking sections to ensure that ink flows only in one direction during ink filling, preventing contamination caused by ink backflow. A pressure source device provides negative pressure matched to the printhead, ensuring stable printhead operation. The solution disclosed in this application has a simple structure, flexible ink filling, and long service life, effectively improving print quality and efficiency.

[0042] The above description is merely an overview of the technical solution disclosed herein. In order to better understand the technical means of this disclosure and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this disclosure more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0043] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of the structure of an ink supply system for a biochemical printer provided in an embodiment of this disclosure.

[0045] Figure 2 for Figure 1 An exploded diagram of a visual ink cartridge.

[0046] Figure 3 for Figure 2 A three-dimensional schematic diagram of the middle box.

[0047] Explanation of reference numerals in the attached figures:

[0048] 10. Spray nozzle;

[0049] 100. Visual ink cartridge; 110. Cartridge body; 111. Individual ink loading chamber; 112. Activator ink loading chamber; 113. First annular groove; 114. Second annular groove; 115. First ink outlet; 116. Second ink outlet; 117. First adapter; 118. Second adapter; 120. Cover plate; 130. First through hole; 140. Second through hole;

[0050] 200. Individual ink filling pipeline device; 210. First connector; 220. Second connector; 230. First ink filling assembly;

[0051] 300. Activator ink filling pipeline device; 310. Third connector; 320. Fourth connector; 330. Second ink filling assembly;

[0052] 410. First pipeline; 420. First filter;

[0053] 510. Second pipeline; 520. Second filter;

[0054] 600. Overflow ink cartridge;

[0055] 700. Pressure source device. Detailed Implementation

[0056] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.

[0057] It should be noted that, where there is no conflict, the embodiments and features described in this disclosure can be combined with each other. The technical solutions of this disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0058] Unless otherwise stated, the exemplary implementations / embodiments shown are to be understood as providing exemplary features of various details that provide ways in which the technical concepts of this disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of various implementations / embodiments may be additionally combined, separated, interchanged and / or rearranged without departing from the technical concepts of this disclosure.

[0059] The use of crosshairs and / or shading in the accompanying drawings is generally used to clarify the boundaries between adjacent components. Thus, unless otherwise stated, the presence or absence of crosshairs or shading does not convey or indicate any preference or requirement for the specific material, material properties, dimensions, proportions, commonalities between the illustrated components, or any other characteristics, properties, etc., of the components. Furthermore, in the accompanying drawings, the dimensions and relative dimensions of components may be exaggerated for clarity and / or descriptive purposes. When exemplary embodiments can be implemented differently, a specific process sequence may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in the reverse order of their description. Furthermore, the same reference numerals denote the same components.

[0060] When a component is referred to as being "on" or "above" another component, "connected to," or "joined to" another component, the component may be directly on, directly connected to, or directly joined to the other component, or there may be intermediate components. However, when a component is referred to as being "directly on" another component, "directly connected to," or "directly joined to" another component, there are no intermediate components. Therefore, the term "connection" can refer to a physical connection, an electrical connection, etc., and may or may not have intermediate components.

[0061] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” another component or feature would subsequently be positioned “above” said other component or feature. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0062] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “the” are intended to include the plural forms as well. Furthermore, when the terms “comprising” and / or “including” and variations thereof are used in this specification, it indicates the presence of the stated features, integrals, steps, operations, parts, components, and / or groups thereof, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, parts, components, and / or groups thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximate terms rather than as terms of degree, thus explaining the inherent biases in measurements, calculated values, and / or provided values ​​that would be recognized by one of ordinary skill in the art.

[0063] Reference Figure 1 and Figure 2 This application provides an ink supply system for a biochemical printer, including: a visual ink cartridge 100, a single ink filling pipeline device 200, an activator ink filling pipeline device 300, an overflow ink cartridge 600, and a pressure source device 700; wherein, the visual ink cartridge 100 has independently configured single ink loading chamber 111 and activator ink loading chamber 112, and the single ink loading chamber 111 and the activator ink loading chamber 112 are respectively connected to corresponding interfaces on the printhead 10 through pipelines to meet the needs of the printhead 10.

[0064] The single ink filling pipeline device 200 includes a first ink filling component 230, a first connector 210 and a second connector 220. One end of the first connector 210 is connected to the single ink loading chamber 111 through a pipeline, and the other end has a first engaging portion. One end of the second connector 220 has a second engaging portion that matches the first engaging portion, and the other end is connected to the first ink filling component 230.

[0065] A one-way valve is installed in the first engagement part to seal the first connector 210 when the first connector 210 is disengaged from the second connector 220, so as to prevent the single ink loading chamber 111 from communicating with the outside world and to maintain the internal pressure of the single ink loading chamber 111 stable.

[0066] The activator ink filling pipeline device 300 includes a second ink filling assembly 330, a third connector 310 and a fourth connector 320. One end of the third connector 310 is connected to the activator ink loading chamber 112, and the other end has a third engaging portion. One end of the fourth connector 320 has a fourth engaging portion that matches the third engaging portion, and the other end is connected to the second ink filling assembly 330.

[0067] A one-way valve is installed in the third engagement part to seal the third connector 310 when the third connector 310 is disengaged from the fourth connector 320, preventing the activator ink loading chamber 112 from communicating with the outside world and maintaining the internal pressure of the activator ink loading chamber 112.

[0068] Furthermore, the first engaging part is inserted into the second engaging part, and the third engaging part is inserted into the fourth engaging part.

[0069] The engaging design of the first connector 210, the second connector 220, the third connector 310, and the fourth connector 320 makes the ink filling process more convenient and reliable. Users can fill ink through simple engaging operations, reducing operational complexity and the probability of errors.

[0070] One end of the first connector 210 is preferably connected to the monomer ink loading chamber 111 via a transparent flexible tube, and one end of the third connector 310 is preferably connected to the activator ink loading chamber 112 via a transparent flexible tube for easy observation.

[0071] In this embodiment, both the first ink filling component 230 and the second ink filling component 330 are preferably syringe components, which can perform convenient and fast ink filling operations while accurately controlling the amount of ink added.

[0072] In addition, both the first ink filling component 230 and the second ink filling component 330 can be automatic ink filling components to achieve automatic ink filling.

[0073] Furthermore, the inlets of both the monomer ink loading chamber 111 and the activator ink loading chamber 112 are preferably located at the center of the top of the chamber, ensuring that the added ink flows to the bottom of the chamber.

[0074] The single ink filling line device 200 and the activator ink filling line device 300 are designed independently to ensure that different types of inks do not mix, further reducing the risk of corrosion.

[0075] The pressure source device 700 can provide negative pressure or positive pressure that matches the nozzle 10.

[0076] During the first working process, when ink is added to the printhead 10 through the single ink filling pipeline device 200 and the activator ink filling pipeline device 300 via the visible ink cartridge 100, the pressure source device 700 is activated to provide positive pressure. The purpose is to use the provided positive pressure (i.e., instantaneous ink pressing) to force the ink out of the corresponding hole of the printhead 10 to clean the printhead 10 and ensure that the printhead 10 is in optimal condition. Furthermore, the printhead 10's condition can be determined based on the printing test results.

[0077] Once the printhead 10 is in the correct position, the pressure source device 700 provides the same negative pressure to the single ink loading chamber 111 and the activator ink loading chamber 112. At this time, the force of the negative pressure is balanced with the weight of the ink in the hole of the printhead 10, ensuring the usability of the printhead 10.

[0078] In this embodiment, the overflow ink cartridge 600 is configured as a safety feature. When the negative pressure provided by the pressure source device 700 is too high and causes the ink in the visual ink cartridge 100 to flow back, the overflow ink cartridge 600 is introduced into the overflow ink cartridge 600 to prevent the ink in the visual ink cartridge 100 from flowing back to the pressure source device 700 when the negative pressure is too high, thereby protecting the pressure source device 700.

[0079] It should be noted that the pressure source device 700, the first ink filling component 230, and the second ink filling component 330 in the figure are all schematic and do not limit the scope of protection of this application.

[0080] In addition, the pressure source device 700 can completely empty the ink cartridge after printing by providing positive pressure. This is especially important for DNA ink, which has a short shelf life and needs to be replaced frequently, and can effectively prevent ink deterioration and contamination.

[0081] Specifically, the visual ink cartridge 100 includes a cartridge body 110 and a cover plate 120 disposed on the top of the cartridge body 110. The cover plate 120 has a first through hole and a second through hole that are matched with the single ink loading chamber 111 and the activator ink loading chamber 112. One end of the first connector 210 is connected to the first through hole through a pipe. One end of the third connector 310 is connected to the second through hole through a pipe.

[0082] The single ink loading chamber 111 and the activator ink loading chamber 112 are opened inside the box body 110, and the longitudinal axis of the single ink loading chamber 111 and the activator ink loading chamber 112 are arranged parallel to the longitudinal axis of the box body 110.

[0083] The top of the box 110 has a first annular groove 113 and a second annular groove 114 that match the single ink loading chamber 111 and the activator ink loading chamber 112, respectively. Annular elastic sealing rings are installed in both the first annular groove 113 and the second annular groove 114.

[0084] Furthermore, the annular elastic sealing ring is interference-fitted with the annular groove; the height of the annular elastic sealing ring is higher than the depth of the annular groove, ensuring that the annular elastic sealing ring is compressed after the cover plate 120 is installed, thus achieving a better sealing effect.

[0085] After the cover plate 120 is assembled with the box body 110, the annular elastic sealing ring is elastically compressed to be flush with the annular groove under the pressure of the cover plate 120. The annular elastic sealing ring is used to seal the box body 110, effectively isolating the two chambers inside the box body 110 from the outside.

[0086] The side of the housing 110 has a first ink outlet 115 and a second ink outlet 116 that are respectively connected to the single ink loading chamber 111 and the activator ink loading chamber 112. The first ink outlet 115 is connected to the first inlet of the printhead 10 through a first adapter 117 and a first pipe 410. A first filter 420 is provided on the first pipe 410. The second ink outlet 116 is connected to the second inlet of the printhead 10 through a second adapter 118 and a second pipe 510. A second filter 520 is provided on the second pipe 510. The filter ensures high quality of ink added to the printhead 10.

[0087] In this embodiment, both the first filter 420 and the second filter 520 are preferably butterfly filters.

[0088] Furthermore, a first manual valve is provided between the first filter 420 and the first ink outlet 115 for controlling the opening and closing of the first pipeline 410, that is, for controlling the opening and closing of the single ink loading chamber 111 and the printhead 10; a second manual valve is provided between the second filter 520 and the second ink outlet 116 for controlling the opening and closing of the second pipeline 510, that is, for controlling the opening and closing of the activator ink loading chamber 112 and the printhead 10.

[0089] The volume ratio of the overflow ink cartridge 600 to the volume of the buffer gas cylinder in the pressure source device 700 is Δ, where 0.5≤Δ≤1.

[0090] In addition, the overflow ink cartridge 600 can act as a buffer when the pressure source device 700 switches between positive and negative pressure, thus avoiding large pressure fluctuations.

[0091] In this embodiment, the visible ink cartridge 100 can be a transparent or semi-transparent box, which makes it easy to clearly observe the remaining corresponding ink content inside the two chambers.

[0092] Furthermore, the visual ink cartridge 100 is preferably made of a brand-new corrosion-resistant PP material (i.e., a non-metallic material). This material is not only corrosion-resistant, but also ensures the quality of the ink and the printing effect, effectively solving the corrosion problem of DNA ink in traditional aluminum alloy ink cartridges.

[0093] Reference Figure 3A first through hole 130 is provided between the single ink loading chamber 111 and the activator ink loading chamber 112; a second through hole 140 is provided on the side of the box body 110, and the pressure source device 700 is connected to the second through hole 140 through a pipeline.

[0094] The second through hole 140 is preferably located on the side of the activator ink loading chamber 112.

[0095] When ink is added to the printhead 10 through the single ink filling pipeline device 200, the activator ink filling pipeline device 300, and the visual ink cartridge 100, the pressure source device 700 is activated to provide positive pressure. The pressure can be transmitted into the chamber through the second through hole 140, and the setting of the first through hole 130 ensures that the pressure acting on the two chambers is consistent.

[0096] In this embodiment, the distance between the first through hole 130 and the bottom of the cover plate 120 is H11, and the height of the box body 110 is H21, 0 < H11 / H21 < 0.1, ensuring that the first through hole 130 is close to the top, effectively preventing the ink in the single ink loading chamber 111 and the activator ink loading chamber 112 from mixing during the ink filling process.

[0097] The second through hole 140 is set at the same height as the first through hole 130.

[0098] In another embodiment, the monomer ink loading chamber 111 is isolated from the activator ink loading chamber 112; a first pressure hole is provided on the side of the monomer ink loading chamber 111, and a second pressure hole is provided on the side of the activator ink loading chamber 112; the pressure source device 700 is connected to the first pressure hole and the second pressure hole through a transmission pipeline assembly; the transmission pipeline assembly includes a main pipeline connected to the pressure source device 700 and a first sub-pipeline and a second sub-pipeline arranged in parallel, one end of the first sub-pipeline is connected to the main pipeline, and the other end is connected to the first pressure hole; one end of the second sub-pipeline is connected to the main pipeline, and the other end is connected to the second pressure hole.

[0099] When the pressure source device 700 is activated to provide positive or negative pressure, the pressure provided to the two chambers can be ensured to be consistent through the configuration of the transmission pipeline assembly.

[0100] The distance between the first pressure hole and the bottom of the cover plate 120 is H12, and the height of the box body 110 is H21, where 0 < H12 / H21 < 0.1; the distance between the second pressure hole and the bottom of the cover plate 120 is H13, and the height of the box body 110 is H21, where 0 < H13 / H21 < 0.1. This ensures that the first and second pressure holes are located close to the top to prevent the mixing of inks added to the two chambers.

[0101] In this embodiment, the size of the visible ink cartridge is matched with the size of the printhead to ensure compact installation and effectiveness.

[0102] Furthermore, the distance between the bottom of the visible ink cartridge and the bottom of the printhead is h, 200mm≤h≤300mm, to ensure the ink filling effect of the printhead without affecting the normal operation of the printhead.

[0103] In this embodiment, the visible ink cartridge is preferably positioned directly above the printhead; the first ink outlet 115 is matched with the bottom of the single ink loading chamber 111, and the second ink outlet 116 is matched with the bottom of the activator ink loading chamber 112, ensuring that the ink entering the printhead 10 from the two chambers flows effectively and continuously.

[0104] The first ink outlet 115 and the second ink outlet 116 are matched and configured with the first inlet and the second inlet of the printhead 10. Furthermore, the first ink outlet 115 and the second ink outlet 116 are preferably configured directly above the first inlet and the second inlet of the printhead 10 to ensure that the ink flows quickly to the corresponding inlet of the printhead 10 under the action of ink filling force and gravity.

[0105] The ink supply system for a biochemical printer disclosed in this application uses a visible ink cartridge with independently configured individual ink loading chambers and activator ink loading chambers. This allows for precise control of the capacity of each chamber, avoiding ink waste caused by excessive capacity in traditional auxiliary ink cartridges. The independent configuration of each chamber allows for optimized design to meet the small-volume requirements of DNA ink, ensuring the exact amount of ink used each time, thereby reducing unnecessary ink waste and storage space occupation. One-way valves are installed in the first and third locking sections to ensure that ink flows only in one direction during ink filling, preventing contamination caused by ink backflow. A pressure source device provides negative pressure matched to the printhead, ensuring stable printhead operation. The solution disclosed in this application has a simple structure, flexible ink filling, and long service life, effectively improving print quality and efficiency.

[0106] In existing technologies, the capacity of traditional auxiliary ink cartridges and automatic ink supply systems are unsuitable for the small-volume, short-term demand for DNA ink; traditional auxiliary ink cartridge materials cannot withstand the corrosiveness of DNA ink, failing to guarantee ink quality and printing results; traditional designs cannot meet the requirement of using different inks simultaneously for multiple printing tasks, leading to ink mixing and shortened shelf life. The ink supply system for biochemical printers disclosed in this application proposes an ink supply system more suitable for DNA printing needs, including smaller capacity, a completely emptying function, and the selection of corrosion-resistant materials, thereby improving print quality and efficiency. It not only solves the problems of ink waste, storage space occupation, pollution and deterioration, and ink corrosion in DNA printing applications of traditional inkjet printing technology, but also improves the ease of operation and reliability of the system. These improvements give this solution significant advantages in the field of DNA chip synthesis printing, and can better meet the special requirements of DNA printing for ink management and auxiliary ink cartridge materials.

[0107] It should be noted that the inks used in this application are monomer inks and activator inks. When other types of inks are needed, they can be flexibly replaced, and new products can be developed. That is, when adding ink to at least two types of inks, the chambers and ink adding devices in this application can be set up to correspond to the ink types. All of these are within the protection scope of this application, so they will not be described in detail here.

[0108] The second aspect of this application discloses a chip synthesis printing system, comprising: at least two sets of the aforementioned DNA chip synthesis printing ink supply systems, at least two printhead assemblies, a mounting plate, and a locking component; the at least two sets of DNA chip synthesis printing ink supply systems are independently configured.

[0109] The mounting plate has at least two receiving slots, and at least two sets of visual ink cartridges are arranged side by side in the at least two receiving slots, meaning that all visual ink cartridges can be installed on the mounting plate.

[0110] The locking component has at least two elastic locking parts, and at least two sets of overflow ink cartridges are installed on the at least two elastic locking parts respectively, thereby fixing all the overflow ink cartridges in place by the locking component.

[0111] The chip synthesis and printing system disclosed in the second aspect of this application can perform multiple printing tasks simultaneously, thereby improving printing efficiency.

[0112] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0113] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0114] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. An ink supply system for a bio-chemical printer, characterized by, The application relates to a visual ink cartridge. The visual ink cartridge comprises a single ink loading chamber and an activator ink loading chamber which are independently arranged inside the cartridge and are connected to corresponding interfaces on a printhead through pipelines; The single ink loading pipeline device comprises a first ink loading component, a first joint and a second joint, one end of the first joint is communicated with the single ink loading chamber, and the other end is provided with a first clamping part; one end of the second joint is provided with a second clamping part matched with the first clamping part, and the other end is connected with the first ink loading component; The activator ink loading pipeline device comprises a second ink loading component, a third joint and a fourth joint, one end of the third joint is communicated with the activator ink loading chamber, and the other end is provided with a third clamping part; one end of the fourth joint is provided with a fourth clamping part matched with the third clamping part, and the other end is connected with the second ink loading component; a one-way valve is arranged in the third clamping part and the first clamping part; The pressure source device is used for providing negative pressure matched with the printhead.

2. The ink supply system for a biochemical printer of claim 1, wherein, The visual ink cartridge comprises a cartridge body and a cover plate arranged on the top of the cartridge body, the cover plate is provided with a first through hole and a second through hole matched with the single ink loading chamber and the activator ink loading chamber; one end of the first joint is communicated with the first through hole through a pipeline; one end of the third joint is communicated with the second through hole through a pipeline; The single ink loading chamber and the activator ink loading chamber are arranged in the cartridge body, and the longitudinal axes of the single ink loading chamber and the activator ink loading chamber are arranged in parallel with the longitudinal axis of the cartridge body; The top of the cartridge body is provided with a first annular groove and a second annular groove matched with the single ink loading chamber and the activator ink loading chamber respectively, and annular elastic sealing rings are arranged in the first annular groove and the second annular groove; The side of the cartridge body is provided with a first ink outlet and a second ink outlet communicated with the single ink loading chamber and the activator ink loading chamber respectively.

3. The ink supply system for a biochemical printer of claim 2, wherein, A first through hole is arranged between the single ink loading chamber and the activator ink loading chamber; A second through hole is arranged on the side of the cartridge body, and the pressure source device is communicated with the second through hole through a pipeline.

4. The ink supply system for a biochemical printer of claim 3, wherein, The distance between the first through hole and the bottom of the cover plate is H11, the height of the cartridge body is H21, and 0 The second through hole is arranged in the same height with the first through hole.

5. The ink supply system for a biochemical printer of claim 2, wherein, The single ink loading chamber and the activator ink loading chamber are arranged in isolation; A first pressure applying hole is arranged on the side of the single ink loading chamber; A second pressure applying hole is arranged on the side of the activator ink loading chamber; The pressure source device is connected with the first pressure hole and the second pressure hole through a transmission pipeline assembly; the transmission pipeline assembly comprises a main pipeline connected with the pressure source device and first and second sub-pipeline arranged side by side, one end of the first sub-pipeline is connected with the main pipeline, and the other end is communicated with the first pressure hole; one end of the second sub-pipeline is connected with the main pipeline, and the other end is communicated with the second pressure hole; The distance between the first pressure hole and the bottom of the cover plate is H12, the height of the box body is H21, and 0 The distance between the second pressure hole and the bottom of the cover plate is H13, the height of the box body is H21, and 0 6. The ink supply system for a biochemical printer of claim 2, wherein, The size of the visual ink cartridge matches the size of the inkjet head; The distance between the bottom of the visual ink cartridge and the bottom of the inkjet head is h, and 200mm≤h≤300mm.

7. The ink supply system for a biochemical printer of claim 6, wherein, The visual ink cartridge is arranged directly above the inkjet head; The first ink outlet is arranged to match the bottom of the single ink loading chamber; The first ink outlet is connected with the first inlet of the inkjet head through a first pipeline, and a first filter is arranged on the first pipeline; The second ink outlet is arranged to match the bottom of the activator ink loading chamber; The second ink outlet is connected with the second inlet of the inkjet head through a second pipeline, and a second filter is arranged on the second pipeline; The first and second ink outlets are arranged to match the first and second inlets of the inkjet head.

8. The ink supply system for a biochemical printer of claim 7, wherein, A first manual valve is arranged between the first filter and the first ink outlet; A second manual valve is arranged between the second filter and the second ink outlet.

9. Ink supply system for a biochemical printer according to any one of claims 1-8, characterized in that, The ink supply system further comprises an overflow ink cartridge arranged between the visual ink cartridge and the pressure source device, and the pressure source device is connected with the visual ink cartridge through the overflow ink cartridge; The volume ratio of the overflow ink cartridge to the buffer gas cylinder in the pressure source device is Δ, and 0.5≤Δ≤1.

10. A chip synthesis printing system, comprising: Comprise: At least two sets of ink supply systems for biochemical printers, at least two inkjet head assemblies, mounting plates and clamping members according to claim 9; At least two sets of ink supply systems for biochemical printers are independently arranged; At least two accommodating grooves are arranged on the mounting plate, and at least two visual ink cartridges are arranged side by side in the at least two accommodating grooves; The clamping member has at least two elastic clamping portions, and at least two overflow ink cartridges are correspondingly arranged in the at least two elastic clamping portions.

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