Multi-nozzle flexible ink wiping device and DNA chip printing synthesis system

Abstract

The utility model discloses a multi-nozzle flexible ink wiping device and a DNA chip printing synthesis system. The multi-nozzle flexible ink wiping device comprises a first bearing platform and a second bearing platform, the first driving assembly is mounted on the first bearing platform; the sliding block assembly is mounted at the power output end of the first driving assembly; the sliding block assembly has the freedom degree of moving along the longitudinal axis of the first bearing platform. A dirty non-woven fabric tightening assembly, a new non-woven fabric supply assembly and an ink wiping assembly are arranged on the sliding block assembly, a guide shaft is arranged between the dirty non-woven fabric tightening assembly and the ink wiping assembly, and a tensioning shaft is arranged between the ink wiping assembly and the new non-woven fabric supply assembly. The center connecting line of the guide shaft and the tensioning shaft is parallel to the center connecting line of the dirty non-woven fabric tightening assembly and the new non-woven fabric supply assembly, and the center connecting line of the guide shaft and the tensioning shaft is lower than the ink wiping assembly. The ink wiping assembly outwards tightly supports the non-woven fabric to form a flexible ink wiping area matched with the multiple sprayers. The multi-nozzle cleaning device can effectively clean multiple nozzles, and cross contamination does not exist.

Description

Technical Field

[0001] This disclosure relates to the interdisciplinary field of inkjet printing and DNA synthesis, and in particular to a multi-nozzle flexible ink erasing device and a DNA chip printing and synthesis system. Background Technology

[0002] In the field of DNA synthesis, precise control of ink jetting is crucial to ensuring the accuracy and efficiency of the synthesis process. In inkjet printing, ink residue on the printhead surface due to ink pressure or other reasons causing printhead contamination necessitates wiping to clean the printhead surface.

[0003] Traditional printhead cleaning involves using a narrow rubber strip to gently scrape across the printhead surface to remove excess ink or dirt. This method results in one strip cleaning multiple printheads, leading to cross-contamination, which is absolutely unacceptable for DNA printing and synthesis. Furthermore, the ink used in DNA synthesis, compared to traditional inks, is more likely to corrode the rubber strip or crystallize and adhere to it, further exacerbating cross-contamination and making it difficult to completely remove ink. Utility Model Content

[0004] In view of this, the present disclosure provides a multi-nozzle flexible ink wiping device and a DNA chip printing and synthesis system, which at least partially solves the problems of incomplete ink wiping of the nozzles and cross-contamination in the prior art.

[0005] In a first aspect, embodiments of this disclosure provide a multi-nozzle flexible ink erasing device, comprising:

[0006] First carrier platform;

[0007] The first drive component is installed on the first carrier platform;

[0008] A slider assembly is installed at the power output end of the first drive assembly; the slider assembly has a degree of freedom to move along the longitudinal axis of the first bearing platform;

[0009] The slider assembly is equipped with a soiled nonwoven fabric tightening assembly, a new nonwoven fabric supply assembly, and an ink wiping assembly. A guide shaft is provided between the soiled nonwoven fabric tightening assembly and the ink wiping assembly to stretch the nonwoven fabric outward. A tensioning shaft is provided between the ink wiping assembly and the new nonwoven fabric supply assembly to press the nonwoven fabric inward. The center line connecting the guide shaft and the tensioning shaft is parallel to the center line connecting the soiled nonwoven fabric tightening assembly and the new nonwoven fabric supply assembly, and the center line connecting the guide shaft and the tensioning shaft is set lower than the ink wiping assembly.

[0010] The ink wiping assembly stretches the nonwoven fabric outward to form a flexible ink wiping area that matches the multiple printheads.

[0011] Optionally, the first drive assembly includes a drive motor and a lead screw mounted on the power output end of the drive motor; the drive motor is fixedly mounted on the first support platform via a motor mounting bracket.

[0012] The slider assembly is configured to match the lead screw;

[0013] The first bearing platform is provided with two guide rails, and the longitudinal axis of the two guide rails is arranged parallel to the longitudinal axis of the lead screw.

[0014] The bottom of the slider assembly has grooves that respectively engage and match with the two guide rails.

[0015] Optionally, the slider assembly includes a second bearing platform, a transition plate fixed to the top of the second bearing platform, and a vertical bearing plate fixed to the side of the transition plate, wherein the vertical bearing plate and the transition plate form an L-shaped structure;

[0016] The soiled nonwoven fabric tightening assembly includes a winding motor fixed to the vertical support plate, a drive shaft installed at the power output end of the winding motor, and a soiled nonwoven fabric roll fixedly sleeved on the drive shaft.

[0017] The new nonwoven fabric supply assembly includes a damping device fixed to the vertical support plate, a driven shaft matched with the damping device, and a new nonwoven fabric roll fixedly sleeved on the driven shaft; the direction of resistance of the damping device to the driven shaft is opposite to the driving direction of the winding motor to the drive shaft.

[0018] Optionally, the ink wiping assembly includes a cantilever plate fixed to the vertical support plate and a soft rubber pad fixed to the top of the cantilever plate, wherein the cantilever plate is vertically fixed to the vertical support plate;

[0019] The longitudinal length of the soft rubber pad is greater than the sum of the widths of multiple independently configured single nozzles.

[0020] Optionally, the soft rubber pad includes a first long rubber pad and a second long rubber pad arranged in parallel, the first long rubber pad and the second long rubber pad having the same structure; the first long rubber pad is disposed away from the tensioning shaft;

[0021] The first long rubber pad includes a bottom of the rubber pad and a semi-circular rubber pad disposed on the bottom of the rubber pad, wherein the length of the bottom of the rubber pad is less than the length of the overhang plate;

[0022] The distance between the two semicircular rubber pads in the first long rubber pad and the second long rubber pad is no greater than 2mm.

[0023] Optionally, the dirty nonwoven fabric between the first long rubber pad and the guide shaft forms a first oblique line, the new nonwoven fabric between the second long rubber pad and the tensioning shaft forms a second oblique line, and the new nonwoven fabric between the first long rubber pad and the second long rubber pad forms a horizontal line.

[0024] The angle between the first oblique line and the horizontal line is smaller than the angle between the second oblique line and the horizontal line;

[0025] The angle between the second oblique line and the horizontal line is α0, where 30°≤α0≤60°.

[0026] Optionally, the top of the tensioning shaft is positioned below the first long rubber pad.

[0027] Optionally, one end of both the guide shaft and the tensioning shaft is fixedly installed to the vertical bearing plate;

[0028] The angle between the center line connecting the guide shaft and the drive shaft and the center line connecting the driven shaft and the drive shaft is α1, where 30°≤α1≤60°;

[0029] The angle between the line connecting the centers of the tensioning shaft and the driven shaft and the line connecting the centers of the driven shaft and the driving shaft is α2, where 30°≤α2≤60°;

[0030] The distance H between the center line connecting the guide shaft and the tensioning shaft and the center line connecting the dirty nonwoven fabric tightening component and the new nonwoven fabric supply component is 40mm≤H≤60mm.

[0031] Optionally, the side of the first support platform is provided with a first sensor and a second sensor that match the slider assembly, and the distance between the first sensor and the second sensor is set to correspond to the moving distance of the slider assembly.

[0032] Secondly, this application discloses a DNA chip printing and synthesis system, including a central control center, a DNA synthesis device, and the aforementioned multi-nozzle flexible ink-wiping device; the DNA synthesis device and the multi-nozzle flexible ink-wiping device are both signal-connected to the central control center.

[0033] The multi-nozzle flexible ink wiping device disclosed in this application uses non-woven fabric as the wiping material, and each printhead has an independent wiping area, ensuring that each printhead only contacts its own wiping material, thereby effectively avoiding cross-contamination. The flexibility of the non-woven fabric also makes the wiping process gentler, reducing damage to the printhead. Through the cooperation of the dirty non-woven fabric tightening component and the new non-woven fabric supply component, it is ensured that clean non-woven fabric is always used for wiping, avoiding the problem of decreased cleanliness caused by wiping material contamination. In addition, the design of the guide shaft and tension shaft keeps the non-woven fabric in a taut state during the wiping process, which can more effectively remove ink residue and dirt from the printhead surface, improving wiping efficiency and cleanliness. The ink wiping assembly can stretch the non-woven fabric outward to form a flexible wiping area that matches multiple printheads. This design can adapt to the shape and position of different printheads, so that each printhead can be wiped accurately, avoiding the problem of uneven wiping caused by different printhead shapes or positions. The design of the flexible wiping area also reduces mechanical damage to the printhead surface and extends the service life of the printhead.

[0034] 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

[0035] 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.

[0036] Figure 1 This is a perspective view of a multi-nozzle flexible ink-wiping device provided in an embodiment of the present disclosure.

[0037] Figure 2 for Figure 1 An explosion diagram.

[0038] Figure 3 for Figure 2 A magnified view of part A in the image.

[0039] Explanation of reference numerals in the attached figures:

[0040] 100. First load-bearing platform; 110. Guide rail;

[0041] 200, First drive assembly; 210, Drive motor; 220, Lead screw; 230, Motor mounting bracket;

[0042] 300. Slider assembly; 310. Second bearing platform; 320. Transition plate; 330. Vertical bearing plate;

[0043] 400. Dirty nonwoven fabric tightening assembly; 410. Winding motor; 420. Drive shaft; 430. Dirty nonwoven fabric roll;

[0044] 500. New nonwoven fabric supply components; 510. Damping device; 520. Driven shaft; 530. New nonwoven fabric roll;

[0045] 600. Ink erasing assembly; 610. Overhang plate; 621. First long rubber pad; 622. Second long rubber pad;

[0046] 700, guide shaft;

[0047] 800, tensioning shaft;

[0048] 910, First sensor; 920, Second sensor. Detailed Implementation

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] Reference Figure 1 and Figure 2 This application discloses a multi-nozzle flexible ink wiping device, comprising: a first support platform 100, a first drive assembly 200 mounted on the first support platform 100, and a slider assembly 300 mounted on the power output end of the first drive assembly 200. The slider assembly 300 is provided with a soiled nonwoven fabric tightening assembly 400, a new nonwoven fabric supply assembly 500, and an ink wiping assembly 600. An outwardly tightening nonwoven fabric is provided between the soiled nonwoven fabric tightening assembly 400 and the ink wiping assembly 600. A tensioning shaft 800 is provided between the guide shaft 700 of the nonwoven fabric, the ink wiping assembly 600 and the new nonwoven fabric supply assembly 500 to press the nonwoven fabric inward. The center line connecting the guide shaft 700 and the tensioning shaft 800 is parallel to the center line connecting the dirty nonwoven fabric tightening assembly 400 and the new nonwoven fabric supply assembly 500, and the center line connecting the guide shaft 700 and the tensioning shaft 800 is set lower than the ink wiping assembly 600. The ink wiping assembly 600 stretches the nonwoven fabric outward to form a flexible ink wiping area that matches the multiple printheads.

[0057] Driven by the first drive assembly 200, the slider assembly 300 can be controlled to reciprocate linearly relative to the first support platform 100, that is, the ink wiping assembly 600 can be controlled to move linearly to a position close to the multi-printhead, and then the ink wiping assembly 600 can be controlled to continue to move forward and wipe the multi-printhead through the flexible ink wiping area.

[0058] In this embodiment, in the initial state, the non-woven fabric on the flexible ink-wiping area formed by the ink-wiping assembly 600 and matched with the multi-printhead is clean. The slider assembly 300 is moved closer to the multi-printhead by the power drive of the first drive assembly 200. Then, the flexible ink-wiping area will contact the bottom of the multi-printhead. During the continued forward movement, the ink wiping and cleaning of the multi-printhead is completed. Then, it continues to move forward and the flexible ink-wiping area will move to a position that is offset from the multi-printhead. Then, it will stop by the power drive of the first drive assembly 200. At this time, because the flexible ink-wiping area is in a position that is offset from the multi-printhead, the power drive of the multi-printhead can be controlled to move the multi-printhead away. After the multi-printhead is moved away, the slider assembly 300 is moved back to the original position by the power drive of the first drive assembly 200.

[0059] After completing a multi-printer cleaning and wiping process, the dirty nonwoven fabric tightening component 400 can be controlled to move the dirty nonwoven fabric in the flexible cleaning area without interfering with the multi-printer. This allows the new nonwoven fabric supply component 500 to provide new nonwoven fabric, ensuring that the nonwoven fabric in the flexible cleaning area is new and ready for the next process.

[0060] Specifically, the first drive assembly 200 includes a drive motor 210 and a lead screw 220 mounted on the power output end of the drive motor 210; the drive motor 210 is fixedly mounted on the first support platform 100 via a motor mounting bracket 230.

[0061] The first bearing platform 100 is provided with two guide rails 110, the longitudinal axis of the two guide rails 110 is parallel to the longitudinal axis of the lead screw 220; the bottom of the slider assembly 300 has grooves that respectively engage and match with the two guide rails 110.

[0062] The slider assembly 300 is matched with the lead screw 220, that is, under the drive of the drive motor 210, the lead screw 220 is controlled to rotate. Through the matching setting with the lead screw 220, the slider assembly 300 is controlled to move linearly. That is, the slider assembly 300 has the degree of freedom to move along the longitudinal axis of the first bearing platform 100.

[0063] Specifically, the slider assembly 300 is fixedly connected to the nut sleeved on the lead screw 220. When the lead screw 220 rotates in its original position, it will drive the nut to move along the lead screw 220, thereby driving the slider assembly 300 to move.

[0064] The slider assembly 300 includes a second support platform 310, a transition plate 320 fixed to the top of the second support platform 310, and a vertical support plate 330 fixed to the side of the transition plate 320. The vertical support plate 330 and the transition plate 320 form an L-shaped structure.

[0065] The soiled nonwoven fabric tightening assembly 400 includes a winding motor 410 fixed to a vertical support plate 330, a drive shaft 420 installed at the power output end of the winding motor 410, and a soiled nonwoven fabric roll 430 fixedly sleeved on the drive shaft 420. In this embodiment, the new design uses a nonwoven fabric roll as the medium for cleaning the nozzle. Each time the nozzle is cleaned, the drive shaft 420 rotates at an angle under the control of the winding motor 410 to retract the soiled fabric roll. The next time the nozzle is wiped, a brand new nonwoven fabric is used.

[0066] The new nonwoven fabric supply assembly 500 includes a damping device 510 fixed to a vertical support plate 330, a driven shaft 520 matched with the damping device 510, and a new nonwoven fabric roll 530 fixedly sleeved on the driven shaft 520. The direction of resistance of the damping device 510 to the driven shaft 520 is opposite to the driving direction of the winding motor 410 to the drive shaft 420, ensuring that after the winding motor 410 stops, the driven shaft 520 stops precisely under the action of the damping device 510, ensuring that the nonwoven fabric between the new nonwoven fabric roll 530 and the dirty nonwoven fabric roll 430 is always in a taut state.

[0067] The ink wiping assembly 600 includes a cantilever plate 610 fixed to a vertical support plate 330 and a soft rubber pad fixed to the top of the cantilever plate 610. The cantilever plate 610 is vertically fixed to the vertical support plate 330. The longitudinal length of the soft rubber pad is greater than the sum of the widths of multiple independently set single printheads, ensuring simultaneous ink wiping of multiple printheads. This is simple, efficient, and effectively prevents cross-contamination.

[0068] In this embodiment, the top of the flexible ink wiping area is set higher than the bottom of the multi-printhead, preferably 3mm to 5mm higher, because the flexible ink wiping area is flexible, this setting can ensure sufficient contact and cleaning of the bottom of the multi-printhead.

[0069] In this embodiment, the overhanging arrangement of the dirty nonwoven fabric tightening component 400, the new nonwoven fabric supply component 500, and the ink wiping component 600 allows for quick disassembly and assembly from the end when the new nonwoven fabric is used up.

[0070] Simultaneously refer to Figure 3 The soft rubber pad includes a first long rubber pad 621 and a second long rubber pad 622 arranged in parallel. The first long rubber pad 621 and the second long rubber pad 622 have the same structure. The first long rubber pad 621 is arranged away from the tensioning shaft 800, that is, the first long rubber pad 621 is arranged close to the guide shaft 700.

[0071] The following is a detailed description using the first long rubber pad 621 as an example. The first long rubber pad 621 includes a bottom of the rubber pad and a semi-circular rubber pad disposed on the bottom of the rubber pad. The length of the bottom of the rubber pad is less than the length of the cantilever plate 610, which can effectively ensure the stable bearing of the first long rubber pad 621 by the cantilever plate 610, and at the same time ensure that the semi-circular rubber pad has sufficient wiping force when it comes into contact with the non-woven fabric (i.e., wiping ink).

[0072] The distance between the two semicircular rubber pads in the first long rubber pad 621 and the second long rubber pad 622 is no more than 2mm, that is, the first long rubber pad 621 and the second long rubber pad 622 can be set with a gap or in contact.

[0073] Among them, the dirty nonwoven fabric located between the first long rubber pad 621 and the guide shaft 700 forms a first oblique line, the new nonwoven fabric located between the second long rubber pad 622 and the tension shaft 800 forms a second oblique line, and the new nonwoven fabric located between the first long rubber pad 621 and the second long rubber pad 622 forms a horizontal line.

[0074] The angle between the first diagonal line and the horizontal line is smaller than the angle between the second diagonal line and the horizontal line. The angle between the second diagonal line and the horizontal line is α0, where 30°≤α0≤60°. This ensures that when the flexible ink-wiping area is staggered from the multi-printer, the multi-printer will not come into contact with the non-woven fabric at the second diagonal line, because the non-woven fabric at the second diagonal line is new, effectively preventing contamination of the new non-woven fabric.

[0075] In this embodiment, the top of the tensioning shaft 800 is positioned below the first long rubber pad 621, which can both tension the new section of nonwoven fabric and protect it, effectively avoiding contact with multiple nozzles.

[0076] One end of the guide shaft 700 and the tensioning shaft 800 are fixedly installed on the vertical bearing plate 330; the angle between the center line connecting the guide shaft 700 and the drive shaft 420 and the center line connecting the driven shaft 520 and the drive shaft 420 is α1, 30°≤α1≤60°.

[0077] The angle between the line connecting the centers of tensioning shaft 800 and driven shaft 520 and the line connecting the centers of driven shaft 520 and driving shaft 420 is α2, where 30°≤α2≤60°.

[0078] The distance H between the center line connecting the guide shaft 700 and the tensioning shaft 800 and the center line connecting the dirty nonwoven fabric tightening component 400 and the new nonwoven fabric supply component 500 is 40mm≤H≤60mm.

[0079] Furthermore, the side of the first support platform 100 is provided with a first sensor 910 and a second sensor 920 that are matched with the slider assembly 300. The distance between the first sensor 910 and the second sensor 920 is set to correspond to the moving distance of the slider assembly 300. The first sensor 910 is the sensor at the origin position, and the second sensor 920 is the farthest position moved after ink wiping.

[0080] The multi-nozzle flexible ink wiping device disclosed in this application uses non-woven fabric as the wiping material, and each nozzle has an independent wiping area, ensuring that each nozzle only contacts its own wiping material, thereby effectively avoiding cross-contamination problems; the flexible properties of the non-woven fabric also make the wiping process gentler and reduce damage to the nozzles.

[0081] Traditional ink strips are prone to losing their cleaning effectiveness due to corrosion or crystallization from DNA synthetic inks, resulting in incomplete wiping and affecting printhead cleanliness. The multi-printhead flexible ink wiping device disclosed in this application, through the cooperation of a soiled nonwoven fabric tightening component and a new nonwoven fabric supply component, ensures that clean nonwoven fabric is always used for wiping, avoiding the problem of decreased cleanliness caused by contamination of the wiping material. Furthermore, the design of the guide shaft and tension shaft keeps the nonwoven fabric taut throughout the wiping process, enabling more effective removal of ink residue and dirt from the printhead surface, improving wiping efficiency and cleanliness.

[0082] Traditional ink-wiping methods use a narrow strip to clean multiple printheads, making it impossible to perform personalized cleaning for each printhead. Furthermore, the hardness of the strip can damage the printhead surface. The ink-wiping component of the multi-printhead flexible ink-wiping device disclosed in this application can stretch the non-woven fabric outward to form a flexible wiping area that matches multiple printheads. This design can adapt to the shape and position of different printheads, ensuring that each printhead is wiped precisely. This avoids uneven wiping caused by differences in printhead shape or position. The flexible wiping area design also reduces mechanical damage to the printhead surface and extends the printhead's service life.

[0083] Traditional ink wiping methods typically require manual operation, which is inefficient and prone to errors. The multi-nozzle flexible ink wiping device disclosed in this application automates the wiping process by combining a first drive component and a slider component. The slider component can move along the longitudinal axis of the first support platform, driving the ink wiping component to wipe multiple nozzles sequentially. The entire process is efficient and precise, reducing human error and improving production efficiency.

[0084] Traditional ink strips are prone to failure during wiping due to ink corrosion or crystallization, requiring frequent replacement and increasing maintenance costs and time. The multi-nozzle flexible ink wiping device disclosed in this application, through the design of a soiled non-woven fabric tightening component and a new non-woven fabric supply component, allows for convenient replacement of the non-woven fabric. During wiping, the soiled non-woven fabric is tightened, and new non-woven fabric is supplied, ensuring that the wiping material remains clean at all times. This design not only improves wiping efficiency but also reduces maintenance costs and time.

[0085] Traditional rubber strip wiping methods are poorly adaptable to different types of printheads and inks, especially when handling special inks (such as DNA synthesis inks), which can easily lead to incomplete wiping or material damage. The multi-printhead flexible ink wiping device disclosed in this application, through the precise control of flexible non-woven fabric and guide shafts and tension shafts, can adapt to different types of printheads and inks, and is particularly suitable for high-precision and high-requirement fields such as DNA synthesis. The softness and replaceability of the non-woven fabric make the device perform well when handling different inks, and can effectively cope with the challenges posed by corrosive and crystalline inks.

[0086] This multi-nozzle flexible ink-wiping device offers significant advantages in the field of DNA synthesis. By avoiding cross-contamination, improving wiping efficiency and cleanliness, enabling flexible wiping areas, automating operation, facilitating the replacement of non-woven fabrics, and providing strong adaptability, it solves many problems associated with traditional ink-wiping methods in DNA synthesis. This not only improves the accuracy and efficiency of DNA synthesis but also reduces maintenance costs and enhances the reliability and lifespan of the equipment.

[0087] In another embodiment, the top of the soft rubber pad has a first transition zone, a horizontal zone, and a second transition zone arranged in parallel. The horizontal zone is located between the first and second transition zones. The first transition zone is inclined between the horizontal zone and the guide shaft, and the second transition zone is inclined between the horizontal zone and the tensioning shaft. The widths of both the first and second transition zones are smaller than the width of the horizontal zone. This soft rubber pad arrangement ensures sufficient contact with multiple printheads while maintaining smoothness during contact, resulting in a more uniform and cleaner ink wiping process.

[0088] Secondly, this application discloses a DNA chip printing and synthesis system, including a central control center, a DNA synthesis device, and a multi-nozzle flexible ink erasing device; the DNA synthesis device and the multi-nozzle flexible ink erasing device are both signal-connected to the central control center.

[0089] 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.

[0090] 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.

[0091] 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. A multi-jet flexible wiper device, characterized in that, The utility model relates to a first bearing platform, a first drive assembly installed on the first bearing platform, a slider assembly installed on the power output end of the first drive assembly, the slider assembly has the freedom of movement along the longitudinal axis of the first bearing platform, the dirty non -woven fabric tightening assembly, the new non -woven fabric supply assembly, the ink wiping assembly are provided on the slider assembly, the dirty non -woven fabric tightening assembly and the ink wiping assembly are provided with the guide shaft that outwardly tightens non -woven fabric between, the ink wiping assembly and the new non -woven fabric supply assembly are provided with the tensioning shaft that inwardly tightens non -woven fabric between, the center line of the guide shaft, the tensioning shaft is parallel with the center line of the dirty non -woven fabric tightening assembly, the new non -woven fabric supply assembly, and the center line of the guide shaft, the tensioning shaft is lower than the ink wiping assembly and is provided with, the ink wiping assembly outwardly tightens non -woven fabric and forms the flexible ink wiping area that matches with multiple nozzles. The first drive assembly includes a drive motor and a lead screw installed on the power output end of the drive motor; the drive motor is fixedly installed on the first bearing platform through a motor mounting frame; The slider assembly is matched with the lead screw; Two guide rails are provided on the first bearing platform, and the longitudinal axes of the two guide rails are arranged in parallel with the longitudinal axis of the lead screw; The bottom of the slider assembly has grooves matched with the two guide rails respectively. The slider assembly includes a second bearing platform, a transition plate fixedly arranged on the top of the second bearing platform, and a vertical bearing plate fixedly arranged on the side of the transition plate, and the vertical bearing plate and the transition plate form an L-shaped structure; The dirty non-woven fabric tightening assembly includes a winding motor fixedly arranged on the vertical bearing plate, a driving shaft installed on the power output end of the winding motor, and a dirty non-woven fabric reel fixedly sleeved on the driving shaft; 2. The multi-jet flexible wiper apparatus of claim 1, wherein, The new non-woven fabric supply assembly includes a damping device fixedly arranged on the vertical bearing plate, a driven shaft matched with the damping device, and a new non-woven fabric reel fixedly sleeved on the driven shaft; the resistance direction of the damping device to the driven shaft is opposite to the driving direction of the winding motor to the driving shaft. The ink wiping assembly includes a cantilever plate fixedly arranged on the vertical bearing plate and a soft rubber pad fixedly arranged on the top of the cantilever plate; the cantilever plate is vertically fixedly arranged on the vertical bearing plate; The longitudinal length of the soft rubber pad is greater than the width and length of a plurality of independently arranged single nozzles. The soft rubber pad includes a first long rubber pad and a second long rubber pad arranged in parallel, and the first long rubber pad and the second long rubber pad are arranged in the same structure; the first long rubber pad is arranged away from the tensioning shaft.

3. The multi-jet flexible wiper apparatus of claim 2, wherein, The first long rubber pad includes a rubber pad bottom and a semicircular rubber pad arranged on the rubber pad bottom, and the length of the rubber pad bottom is less than the length of the cantilever plate; The distance between the two semicircular rubber pads in the first long rubber pad and the second long rubber pad is not greater than 2 mm. The dirty non-woven fabric between the first long rubber pad and the guide shaft forms a first oblique line, the new non-woven fabric between the second long rubber pad and the tensioning shaft forms a second oblique line, and the new non-woven fabric between the first long rubber pad and the second long rubber pad forms a horizontal line.

4. The multi-jet flexible wiper apparatus of claim 3, wherein, ​ ​ 5. The multi-jet flexible wiper apparatus of claim 4, wherein, ​ ​ ​ 6. The multi-jet flexible wiper apparatus of claim 5, wherein, ​ The included angle between the first inclined line and the horizontal line is smaller than the included angle between the second inclined line and the horizontal line. The included angle between the second inclined line and the horizontal line is α0, 30°≤α0≤60°.

7. The multi-jet flexible wiper apparatus of claim 5, wherein, The top of the tensioning shaft is lower than the first long rubber pad.

8. The multi-jet flexible wiper apparatus of claim 3, wherein, One end of the guide shaft and the tensioning shaft is fixedly installed with the vertical bearing plate. The included angle between the center line of the guide shaft and the driving shaft and the center line of the driven shaft and the driving shaft is α1, 30°≤α1≤60°. The included angle between the center line of the tensioning shaft and the driven shaft and the center line of the driven shaft and the driving shaft is α2, 30°≤α2≤60°. The distance between the center line of the guide shaft and the tensioning shaft and the center line of the dirty non-woven fabric tightening assembly and the new non-woven fabric supply assembly is H, 40mm≤H≤60mm.

9. The multi-jet flexible wiper apparatus of claim 1, wherein, The side of the first bearing platform is provided with a first sensor and a second sensor matched with the sliding block assembly, and the distance between the first sensor and the second sensor corresponds to the moving distance of the sliding block assembly.

10. A DNA chip printing synthesis system, characterized by, The total control center, the DNA synthesis device and the multi-jet flexible ink wiping device of any one of claims 1-9 are connected in signal with the total control center. The total control center, the DNA synthesis device and the multi-jet flexible ink wiping device of any one of claims 1-9 are connected in signal with the total control center.

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