Liquid injection device

Abstract

The liquid injection device includes a liquid injection assembly (10), a first transmission mechanism (20), and a mounting mechanism (30). The liquid injection assembly (10) includes a liquid injection body (11) and a liquid injection head (12) mounted on the body (11). The first transmission mechanism (20) is used to drive the liquid injection assembly (10). The mounting mechanism (30) is used to mount a replaceable wiping member (31). The mounting mechanism (30) cooperates with the first transmission mechanism (20) to allow the liquid injection head (12) to contact different positions on the replaceable wiping member (31) and to wipe the liquid injection head (12). This reduces the probability of the liquid injection head being contaminated by repeated application of the liquid to be injected, effectively improving the cleaning effect, reducing the probability of cross-contamination, and ensuring the quality of batteries during the production process.

Description

[Technical Field]

[0001] FIELD OF THE INVENTION This application relates to the field of fluid injection, and more particularly to fluid injection devices. [Background technology]

[0002] Batteries are widely welcomed in the market as a power source for new energy vehicles. Therefore, battery quality is an important guarantee for the long-term development of new energy vehicles. During the battery production process, electrolyte must be injected into the battery using a liquid injection device. After each injection, the liquid remaining in the injection head of the liquid injection device must be cleaned to prevent adverse effects on subsequent battery processing.

[0003] Currently, cleaning the injection head of an injection device involves wiping the injection head with a cleaning nozzle, and such cleaning nozzles are generally used repeatedly. As a result, after the previous cleaning is completed, electrolyte remains in the cleaning nozzle and re-adheres to the surface of the injection head during the next cleaning, contaminating the injection head, reducing the cleaning effect and, in serious cases, causing cross-contamination, making it impossible to ensure the quality of batteries during the production process. Similar problems also exist with injection devices used in other industries. Summary of the Invention

[0004] In view of this, the main technical problem that the present application aims to solve is to provide a liquid injection device that can solve the problem of low cleaning effect of the liquid injection head of the liquid injection device.

[0005] To solve the above technical problems, the present application provides a liquid injection device including a liquid injection assembly, a first transmission mechanism, and a mounting mechanism. The liquid injection assembly includes a liquid injection body and a liquid injection head provided on the liquid injection body. The first transmission mechanism is used to drive the liquid injection assembly, and the mounting mechanism is used to mount a replaceable wiping member. The mounting mechanism cooperates with the first transmission mechanism so that the liquid injection head can contact different positions on the replaceable wiping member and further wipe the liquid injection head.

[0006] In the technical solutions of the embodiments of the present application, a replaceable wiping member is mounted by a mounting mechanism, and the mounting mechanism cooperates with a first transmission mechanism to allow the injection head to contact different positions on the replaceable wiping member and wipe the injection head, thereby reducing the probability of the injection head being contaminated by repeated contact with the injected liquid, effectively improving the cleaning effect, and reducing the probability of cross-contamination.

[0007] In some embodiments, the mounting mechanism and the first transmission mechanism are configured so that the contact position between the injection head and the replaceable wiping member is different each time the injection head is wiped. This design can avoid repeated cleaning of the injection head with the replaceable wiping member at the same position, further improving the cleaning effect and reducing the probability of cross-contamination.

[0008] In some embodiments, the replaceable wiping member is a flexible sheet, the mounting mechanism includes a support stage for supporting the replaceable wiping member, and the liquid injection head contacts an area of ​​the replaceable wiping member supported by the support stage. In such a design, the support stage provides a supporting force to the replaceable wiping member, ensuring stable contact between the liquid injection head and the replaceable wiping member, and the flexibility of the replaceable wiping member itself enhances the cleaning effect of the liquid injection head.

[0009] In some embodiments, the mounting mechanism further includes a wiping member adjustment mechanism that moves the replaceable wiping member relative to the support stage and brings the liquid injection head into contact with a different position of the area of ​​the replaceable wiping member supported by the support stage. With such a design, the contact position between the liquid injection head and the replaceable wiping member is changed by moving the replaceable wiping member, and the first transmission mechanism only needs to ensure contact between the liquid injection head and the replaceable wiping member, thereby simplifying the complexity of transmission of the liquid injection assembly by the first transmission mechanism.

[0010] In some embodiments, the replaceable wiping member that is not wiping the liquid injection head is provided in a roll shape, and the wiping member adjustment mechanism includes an unwinding mechanism for unwinding the replaceable wiping member that is not wiping the liquid injection head onto the support stage, and a rewinding mechanism for rewinding the replaceable wiping member that has wiped the liquid injection head. Such a design makes it easy to manage the replacement of the replaceable wiping member, reduces the number of times the replaceable wiping member needs to be replaced, and reduces the amount of work for the operator.

[0011] In some embodiments, the first transmission mechanism is configured to drive the injection assembly to bring the injection head into contact with different positions of the area supported by the support stage of the replaceable wiping member. With such a design, the contact position between the injection head and the replaceable wiping member can be changed by the first transmission mechanism, thereby reducing the hardware cost of the device.

[0012] In some embodiments, the mounting mechanism further includes a stage adjustment mechanism that transmits the support stage and the replaceable wiping member supported by the support stage to bring the dispensing head into contact with a different position of the area of ​​the replaceable wiping member supported by the support stage. With such a design, the contact position between the dispensing head and the replaceable wiping member is changed by moving the support stage, and the first transmission mechanism only needs to ensure contact between the dispensing head and the replaceable wiping member, thereby simplifying the flow of transmission of the dispensing assembly by the first transmission mechanism.

[0013] In some embodiments, the liquid injection device further includes a second transmission mechanism for transmitting rotation of one of the liquid injection head and the replaceable wiping member relative to the other after the liquid injection head contacts the replaceable wiping member. In such a design, friction generated during the relative rotation between the liquid injection head and the replaceable wiping member enhances the cleaning effect of the liquid injection head.

[0014] In some embodiments, the injection head is rotatably supported on the injection body, and the second transmission mechanism drives the injection head to rotate relative to the injection body and, after contacting the replaceable wiping member, to rotate relative to the replaceable wiping member. Such a design more effectively realizes relative rotation between the injection head and the replaceable wiping member.

[0015] In some embodiments, the second transmission mechanism is fixed to the infusion body, and the first transmission mechanism drives the second transmission mechanism and the infusion assembly to move synchronously. This design can effectively simplify the transmission connection between the second transmission mechanism and the infusion head.

[0016] In some embodiments, the rotation axis of the liquid injection head is perpendicular to the support surface of the support stage. Such a design can further improve the cleaning effect of the liquid injection head due to the relative rotation between the liquid injection head and the replaceable wiping member.

[0017] In some embodiments, the injection body includes a cup-shaped portion and an intermediate portion connected to each other, the cup-shaped portion having an injection cavity formed therein, the intermediate portion having a receiving cavity formed on a bottom wall of the cup-shaped portion opposite the injection cavity, the injection assembly further including an intermediate post rotatably supported within the receiving cavity, the injection head being provided on an outer end surface of the intermediate post opposite the injection cavity and coaxial with the intermediate post, the intermediate post having a liquid guide passage, the bottom wall of the cup-shaped portion having a liquid guide hole aligned with the liquid guide passage, the injection head communicating with the receiving cavity via the liquid guide passage and the liquid guide hole. This design effectively ensures stable connection and rotation between the injection body and the injection head.

[0018] In some embodiments, one end of the intermediate post opposite the injection cavity is exposed from the receiving cavity, and the second transmission mechanism is connected to the exposed portion of the intermediate post and drives the intermediate post and the injection head to rotate relative to the injection body. This design simplifies the drive connection between the second transmission mechanism and the injection head and ensures stable rotation of the injection head.

[0019] In some embodiments, the second transmission mechanism includes a motor and a conveyor belt, the motor body of the motor is fixed to the injection body, the conveyor belt is wound around the outer surface of the output shaft of the motor and the outer surface of the exposed part of the intermediate post, and the rotation axis of the output shaft of the motor is parallel to the rotation axes of the injection head and the intermediate post. This design simplifies the drive connection method between the second transmission mechanism and the injection head and ensures rotational stability of the injection head.

[0020] In some embodiments, the liquid injection device further includes a bearing and a sealing member located in the receiving cavity, the bearing being used to rotatably support the relay post, and the sealing member being used to seal between the relay post and the liquid injection body. With this design, the bearing and the sealing member provided in the receiving cavity ensure the reliability and sealing of the connection between the relay post and the liquid injection body.

[0021] In some embodiments, a recessed portion that matches the shape of the injection head is provided on the support surface of the support stage, and the first transmission mechanism further presses the injection head and the replaceable wiping member that the injection head has come into contact with into the recessed portion after the injection head comes into contact with the replaceable wiping member. With this design, by providing a recessed portion that matches the shape of the injection head on the support surface of the support stage, the replaceable wiping member can surround the circumferential surface of the injection head, further enhancing the cleaning effect.

[0022] The above description is merely a brief description of the technical solution of the present application. In order to make the technical solution of the present application more clearly understood and implemented according to the contents of the specification, and to make the above and other objectives, features and advantages of the present application more comprehensible, specific embodiments of the present application are given below. [Brief explanation of the drawings]

[0023] In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings used in the embodiments of the present application are briefly described below. The drawings described below only illustrate some embodiments of the present application, and it is clear that those skilled in the art can conceive of other drawings based on these drawings without creative work.

[0024] [Figure 1] 1 is a front view of an infusion device disclosed in accordance with one embodiment of the present application; [Figure 2] 2 is a schematic perspective view of the liquid injection device shown in FIG. 1 with a first transmission mechanism removed. FIG. [Figure 3] 2 is a left side view of the liquid injection device shown in FIG. 1 with a first transmission mechanism removed. FIG. [Figure 4] 2 is a top view of the liquid injection device shown in FIG. 1 with a first transmission mechanism removed. FIG. [Figure 5] 1 is a front view of an injection assembly and a second transmission mechanism in an injection device disclosed in one embodiment of the present application. [Figure 6]1 is a cross-sectional view of a liquid injection assembly and a second transmission mechanism in a liquid injection device disclosed in an embodiment of the present application. [Figure 7] 1 is a cross-sectional view showing a liquid injection head in a liquid injection device disclosed in an embodiment of the present application recessed into a support stage. [Figure 8] FIG. 10 is a front view of a liquid injection device using a stage adjustment mechanism according to some embodiments of the present application.

[0025] In the drawings, the figures are not drawn to scale. DETAILED DESCRIPTION OF THE INVENTION

[0026] Hereinafter, the embodiments of the present application will be described in more detail with reference to the drawings and examples. The detailed description of the following examples and the drawings are intended to exemplarily explain the principles of the present application, but are not intended to limit the scope of the present application, i.e., the present application is not limited to the examples described.

[0027] In the description of this application, it should be understood that unless otherwise specified, "plurality" means two or more, and the orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "inner," and "outer" are merely for the purpose of facilitating and simplifying the description of this application and do not express or imply that the described devices or elements necessarily have a particular orientation or are constructed or operated in a particular orientation, and should not be understood as limiting this application. Furthermore, the terms "first," "second," "third," etc. are merely for explanatory purposes and should not be understood as expressing or implying relative importance. "Perpendicular" does not mean perpendicular in the strict sense, but has a margin of error. "Parallel" does not mean parallel in the strict sense, but has a margin of error.

[0028] Any directional terms appearing in the following description are directions shown in the drawings and do not limit the specific structure of the present application. In the description of the present application, as will be further explained, unless otherwise clearly defined or limited, the terms "attach," "couple," and "connect" should be understood in a broad sense. For example, they may be fixedly connected, detachably connected, or integrally connected. They may be directly connected or indirectly connected via an intermediate medium. Those skilled in the art can understand the specific meanings of the above terms in the present application according to the specific circumstances.

[0029] Currently, in view of the future prospects of market development and application trends, batteries have advantages such as high energy density, high power density, high recyclability, and long storage time, and are therefore widely used in various fields. For example, batteries have been applied to various energy storage power supply systems such as hydroelectric, thermal, wind, and solar power plants, and provide power for high-power devices, such as electric vehicles such as electric bicycles, electric motorcycles, and electric vehicles, and are also used in various fields such as military equipment and aerospace. As the application fields of batteries continue to expand, the market demand for batteries is also increasing.

[0030] The inventors of the present application discovered that in the battery production process, after an injection device injects electrolyte into a battery cell, the injection head of the injection device is cleaned by a cleaning nozzle. However, because the cleaning nozzle is used repeatedly, electrolyte inevitably gets on the injection head after the cleaning nozzle cleans it, and the next time cleaning is performed, the electrolyte gets on the injection head being cleaned. This reduces the cleaning effect and ultimately causes cross-contamination, affecting battery yield.

[0031] To solve the above problems caused by repeated cleaning, the inventors have discovered through research that it is possible to design a replaceable wiping member. Specifically, the replaceable wiping member is installed between the injection head and the mounting mechanism, and the mounting mechanism and transmission structure cooperate to allow the injection head to contact different positions on the replaceable wiping member and further wipe the injection head, thereby improving the cleaning effect and avoiding cross-contamination.

[0032] As a result of further intensive research, the inventor further designed a rotary liquid injection head, in which the surface of the liquid injection head is more effectively cleaned by the self-rotation of the liquid injection head on the surface of the replaceable wiping member.

[0033] The injection device disclosed in the embodiments of the present application can be used to inject electrolyte into batteries, but is not limited to this and can be similarly applied to other industries where it is necessary to clean liquid remaining in the injection head.

[0034] For the sake of convenience, the following embodiment will be described taking as an example a liquid injection device for injecting an electrolyte into a battery in one embodiment of the present application.

[0035] According to some embodiments of the present application, with reference to FIGS. 1 to 4, FIG. 1 is a front view of a liquid injection device according to some embodiments of the present application. FIGS. 2 to 4 are a three-dimensional view, a left side view, and a top view of the liquid injection device shown in FIG. 1 after removing a first transmission mechanism 20. An embodiment of the present application provides a liquid injection device. The liquid injection device includes a liquid injection assembly 10, a first transmission mechanism 20, and a mounting mechanism 30. Referring further to FIG. 5, the liquid injection assembly 10 includes a liquid injection body 11 and a liquid injection head 12 provided on the liquid injection body 11. The first transmission mechanism 20 is used to drive the liquid injection assembly 10. The mounting mechanism 30 is used to mount a replaceable wiping member 31, and the mounting mechanism 30 cooperates with the first transmission mechanism 20 so that the liquid injection head 12 can contact different positions of the replaceable wiping member 31 and further wipe the liquid injection head 12.

[0036] In this embodiment, the injection assembly 10 includes an injection body 11 and an injection head 12. The injection body 11 is connected to the injection head 12. A liquid or fluid is stored in the injection body 11, and the injection head 12 injects the liquid or fluid into a predetermined container. Taking the injection of electrolyte into a battery as an example, the injection head 12, under the transmission of the first transmission mechanism 20, is accurately aligned with the injection port of a battery located at a liquid injection station and injects the electrolyte into the battery through the injection port. After the injection is completed, the first transmission mechanism 20 drives the injection head 12 to move away from the liquid injection station and to a cleaning station. In the above scenario, the placement mechanism 30 may be provided at the cleaning station and cooperate with the first transmission mechanism 20 to complete cleaning of the injection head 12. In other scenarios, the first transmission mechanism 20 may be used to achieve other functions.

[0037] In this embodiment, the first transmission mechanism 20 can be any of various transmission mechanisms known in the art, such as a translation mechanism or a rotation mechanism, and the specific transmission method may be mechanical, such as gear transmission, turbine worm transmission, belt transmission, or chain transmission, or may be electrical, pneumatic, or hydraulic, and is not limited thereto. In this embodiment, the first transmission mechanism 20 can be detachably connected to the injection body 11 of the injection assembly 10 by magnetic attraction, thread connection, or the like, allowing different injection assemblies 10 to be replaced according to different injection needs.

[0038] A replaceable wiping member 31 is mounted on the mounting mechanism 30; that is, the replaceable wiping member 31 is located between the liquid injection head 12 and the mounting mechanism 30. The mounting mechanism 30 cooperates with the first transmission mechanism 20 so that the liquid injection head 12 can contact different positions on the replaceable wiping member 31. Specific cooperation methods can be realized in various different embodiments. For example, the replaceable wiping member 31 mounted on the mounting mechanism 30 may not move, and the first transmission mechanism 20 may transmit the liquid injection head 12 to different positions on the replaceable wiping member 31; or the liquid injection head 12 may be fixed and not move, and the replaceable wiping member 31 mounted on the mounting mechanism 30 may move relative to the liquid injection head 12 after wiping the liquid injection head 12.

[0039] In the above technical solution, through cooperation between the loading mechanism 30 and the first transmission mechanism 20, the injection head 12 can contact different positions of the replaceable wiping member 31, reducing the probability of the injection head 12 being contaminated by repeated contact with the injected liquid, effectively improving the cleaning effect, reducing the probability of cross-contamination, and ensuring the quality of the battery during the production process.

[0040] According to some embodiments of the present application, the mounting mechanism 30 and the first transmission mechanism 20 are selectively arranged so that the contact position between the liquid injection head 12 and the replaceable wiping member 31 is different each time the liquid injection head 12 is wiped.

[0041] The contact position between the liquid injection head 12 and the replaceable wiping member 31 is different each time, and the contact position is with the replaceable wiping member 31 that is not wiping the liquid injection head 12, so repeated cleaning of the liquid injection head 12 using the same position of the replaceable wiping member 31 is avoided, further improving the cleaning effect and reducing the probability of cross-contamination.

[0042] According to some embodiments of the present application, optionally, the replaceable wiping member 31 is a flexible sheet, the mounting mechanism 30 includes a support stage 32 for supporting the replaceable wiping member 31, and the liquid injection head 12 contacts an area of ​​the replaceable wiping member 31 supported by the support stage 32. Specifically, the replaceable wiping member 31 may be, but is not limited to, a highly absorbent sheet-like material such as a nonwoven fabric, a nylon cloth, a sponge, absorbent paper, or a cotton material. The replaceable wiping member 31 has high absorbency, can store a large amount of solvent, is strong and durable, and is low in cost.

[0043] The first transmission mechanism 20 moves the liquid injection head 12 so that it comes into contact with the replaceable wiping member 31 supported by the support stage 32, and the support stage 32 provides a supporting force to the replaceable wiping member 31, ensuring stable contact between the liquid injection head 12 and the replaceable wiping member 31, and the flexibility of the replaceable wiping member 31 itself enhances the cleaning effect of the liquid injection head 12.

[0044] According to some embodiments of the present application, optionally, the mounting mechanism 30 further includes a wiping member adjustment mechanism 33 that is configured to move the replaceable wiping member 31 relative to the support stage 32 and to bring the liquid injection head 12 into contact with different positions of the area of ​​the replaceable wiping member 31 supported by the support stage 32.

[0045] In a specific embodiment, the support stage 32 is fixed and does not move, and the wiping member adjustment mechanism 33 drives and moves the replaceable wiping member 31. In this case, the first transmission mechanism 20 drives the liquid injection head 12 to contact the replaceable wiping member 31 supported by the support stage 32, and wiping is performed. After cleaning is completed, the liquid injection head 12 moves away from the support stage 32, and the wiping member adjustment mechanism 33 moves the replaceable wiping member 31 supported by the support stage 32. Furthermore, when the first transmission mechanism 20 again drives the liquid injection head 12 to contact the replaceable wiping member 31 supported by the support stage 32, the replaceable wiping member 31 that comes into contact is not wiping the liquid injection head 12.

[0046] The first transmission mechanism 20 described above needs to transmit the injection head 12 to complete multiple injection and cleaning operations, and the more operational processes there are, the greater the complexity of the control flow and the requirements for control accuracy; otherwise, the greater the accumulated errors. Therefore, in the above embodiment, the wiping member adjustment mechanism 33 moves the replaceable wiping member 31 to change the contact position between the injection head 12 and the replaceable wiping member 31, and the first transmission mechanism 20 only needs to ensure contact between the injection head 12 and the replaceable wiping member 31, thereby simplifying the complexity of the transmission of the injection assembly 10 by the first transmission mechanism 20 and reducing the difficulty of control.

[0047] 1 to 4, selectively, according to some embodiments of the present application, replaceable wiping member 31 that is not wiping liquid injection head 12 is provided in the form of a roll, and wiping member adjustment mechanism 33 includes an unwinding mechanism 331 for unwinding replaceable wiping member 31 that is not wiping liquid injection head 12 onto support stage 32, and a rewinding mechanism 332 for rewinding replaceable wiping member 31 that has wiped liquid injection head 12.

[0048] In this embodiment, the unwinding mechanism 331 and the rewinding mechanism 332 are rotatably mounted on both sides of the support stage 32. In other embodiments, the specific positions of the unwinding mechanism 331 and the rewinding mechanism 332 are not limited and can be set as needed. In a specific embodiment, the unwinding mechanism 331 is an unpowered roller with a certain rotational damping, and the rewinding mechanism 332 is a powered roller. In this case, a replaceable wiping member 31 that is not wiping the liquid injection head 12 is wound around the unwinding mechanism 331. The replaceable wiping member 31 is in a tensioned state between the unwinding mechanism 331 and the rewinding mechanism 332. The rewinding mechanism 332 is driven to rotate, so that the replaceable wiping member 31 that has wiped the liquid injection head 12 is wound around the rewinding mechanism 332. At the same time, the unwinding mechanism 331 is driven to unwind the replaceable wiping member 31 that is not wiping the liquid injection head 12 onto the support stage 32. In other specific embodiments, the unwinding mechanism 331 and the rewinding mechanism 332 may both be powered rollers, and the motions driving the rewinding mechanism 332 and the unwinding mechanism 331 may be mechanically driven, hydraulically driven, pneumatically driven, driven by a motor 41, etc., and are not limited here.

[0049] The unwinding and rewinding operations of the unwinding mechanism 331 and the rewinding mechanism 332 ensure that the liquid injection head 12 comes into contact with the replaceable wiping member 31 that is not wiping the liquid injection head 12 each time, and also facilitate the management of replacement of the replaceable wiping member 31, reducing the number of times the replaceable wiping member 31 needs to be replaced and reducing the workload of the operator.

[0050] According to some embodiments of the present application, the first transmission mechanism 20 is selectively configured to transmit the injection assembly 10 to bring the injection head 12 into contact with different positions of the area supported by the support stage 32 of the replaceable wiping member 31.

[0051] In one specific embodiment, a replaceable wiping member 31 is placed on the support stage 32. The replaceable wiping member 31 is fixed to the support stage 32, and a plurality of different marking positions are marked on the replaceable wiping member 31. Subsequently, the first transmission mechanism 20 is pulled using a direct teaching method to bring the injection head 12 into contact with the different marking positions, and a motion sensor on the first transmission mechanism 20 records the stroke of the first transmission mechanism 20. During actual operation, when the first transmission mechanism 20 drives the injection assembly 10 that has completed the injection operation to move to the support stage 32, it can select different pre-recorded strokes to bring the injection head 12 into contact with different positions of the replaceable wiping member 31. In other specific embodiments, stroke planning for the first transmission mechanism 20 can be performed using other means known in the art. Changing the contact position between the injection head 12 and the replaceable wiping member 31 using the first transmission mechanism 20 eliminates the need for additional transmission members, thereby reducing the hardware costs of the device.

[0052] According to some embodiments of the present application, the liquid injection device optionally further includes a second transmission mechanism 40. The second transmission mechanism 40 is used to transmit rotation of one of the liquid injection head 12 and the replaceable wiping member 31 relative to the other after the liquid injection head 12 comes into contact with the replaceable wiping member 31.

[0053] The transmission method of the second transmission mechanism 40 may be mechanical transmission such as gear transmission, turbine worm transmission, belt transmission, chain transmission, etc., or may be electrical transmission, pneumatic transmission, hydraulic transmission, etc., and is not limited here.

[0054] In this embodiment, when the liquid injection head 12 comes into contact with the replaceable wiping member 31, the second transmission mechanism 40 drives the liquid injection head 12 to rotate, and further enhances the cleaning effect of the liquid injection head 12 due to the friction generated during the relative rotation between the liquid injection head 12 and the replaceable wiping member 31.

[0055] 5 and 6, which are a front view and a cross-sectional view of the injection assembly and the second transmission mechanism in the injection device of some embodiments of the present application. The injection head 12 is rotatably supported by the injection body 11, and the second transmission mechanism 40 drives the injection head 12 to rotate relative to the injection body 11 and to rotate relative to the replaceable wiping member 31 after contacting the replaceable wiping member 31.

[0056] By configuring the injection body 11 and the injection head 12 as two relatively independent members, and by supporting and rotating the injection head 12 by the injection body 11, the relative rotation between the injection head 12 and the replaceable wiping member 31 can be achieved more effectively in a relatively simple manner.

[0057] According to some embodiments of the present application, optionally, the second transmission mechanism 40 is fixed to the infusion body 11, and the first transmission mechanism 20 transmits the second transmission mechanism 40 and the infusion assembly 10 to move synchronously.

[0058] In a specific embodiment, the second transmission mechanism 40 is fixedly connected to the infusion body 11, and the specific connection method may be direct connection or indirect connection. The direct connection may be a mechanical connection, welding, adhesive, etc., and the indirect connection may be connecting the second transmission mechanism 40 and the infusion body 11 with a connecting member 43 to fix them relative to each other, and is not limited thereto.

[0059] In this case, the second transmission mechanism 40 and the injection assembly 10 can be moved synchronously, and a constant driving connection can be maintained between the second transmission mechanism 40 and the injection head 12, thereby effectively simplifying the transmission connection method between the second transmission mechanism 40 and the injection head 12.

[0060] According to some embodiments of the present application, the rotation axis of the injection head 12 is optionally perpendicular to the support surface 321 of the support stage 32. In a specific embodiment, the support surface 321 of the support stage 32 is a horizontal plane, and the replaceable wiping member 31 is placed horizontally on the support surface 321.

[0061] Since the rotation axis of the injection head 12 is perpendicular to the support surface 321, the injection head 12 can come into uniform contact with the replaceable wiping member 31 during rotation, which further enhances the cleaning effect of the injection head 12 due to the relative rotation between the injection head 12 and the replaceable wiping member 31 and avoids causing unnecessary wear and tear to the injection head 12.

[0062] 6 , according to some embodiments of the present application, the infusion body 11 includes a cup-shaped portion 111 and an intermediate portion 112 connected to each other, the cup-shaped portion 111 has an infusion cavity 113 formed therein, the intermediate portion 112 has a receiving cavity 114 formed on a bottom wall of the cup-shaped portion 111 opposite the infusion cavity 113, the infusion assembly 10 further includes an intermediate post 13 rotatably supported within the receiving cavity 114, the infusion head 12 is provided on an outer end surface of the intermediate post 13 opposite the infusion cavity 113 and is coaxial with the intermediate post 13, the intermediate post 13 has a liquid guide passage 131 formed therein, and the bottom wall of the cup-shaped portion 111 has a liquid guide hole 132 aligned with the liquid guide passage 131 formed therein, and the infusion head 12 communicates with the receiving cavity 114 via the liquid guide passage 131 and the liquid guide hole 132.

[0063] By using the above method, an intermediary section 112 is further provided on the injection body 11, and rotation between the injection head 12 and the injection body 11 is realized by an intermediary column 13 extending into the accommodating cavity 114 of the intermediary section 112, thereby effectively ensuring the stability of the connection and rotation between the injection body 11 and the injection head 12.

[0064] According to some embodiments of the present application, optionally, one end of the relay pole 13 opposite the injection cavity 113 is exposed from the accommodating cavity 114, and the second transmission mechanism 40 is connected to the exposed portion of the relay pole 13 and drives the relay pole 13 and the injection head 12 to rotate relative to the injection body 11.

[0065] Because the injection head 12 generally has an irregular structure and relatively low structural strength, directly connecting the second transmission mechanism 40 to the injection head 12 would require a relatively complicated connection method and result in poor structural stability. By using the above method, the second transmission mechanism 40 is connected to the exposed portion of the intermediate post 13 and the injection head 12 is driven to rotate by the intermediate post 13, which effectively simplifies the connection method between the second transmission mechanism 40 and the injection head 12 and ensures the rotational stability of the injection head 12. Furthermore, if the injection head 12 is damaged, only the injection head 12 needs to be replaced, without the need to remove the entire injection assembly 10.

[0066] 5 and 6, according to some embodiments of the present application, the second transmission mechanism 40 includes a motor 41 and a conveyor belt 42, the motor body of the motor 41 is fixed to the infusion body 11, the conveyor belt 42 is wound around the outer circumferential surface of the output shaft of the motor 41 and the outer circumferential surface of the exposed portion of the relay pole 13, and the rotation axis of the output shaft of the motor 41 is parallel to the rotation axes of the infusion head 12 and the relay pole 13.

[0067] The above method utilizes the columnar characteristics of the relay column 13 and drives the injection head 12 and the relay column 13 using a relatively simple belt transmission method, thereby further simplifying the drive connection method between the second transmission mechanism 40 and the injection head 12 and ensuring rotational stability of the injection head 12.

[0068] Optionally, according to some embodiments of the present application, referring to FIG. 6 , the infusion device further includes a bearing 115 and a sealing member 116 located in the receiving cavity 114. The bearing 115 is used to rotatably support the relay post 13, and the sealing member 116 is used to seal between the relay post 13 and the infusion body 11.

[0069] A sealing member 116 is provided between the outside of the relay post 13 and the cup-shaped portion 111 of the injection body 11, thereby preventing the liquid in the injection cavity 113 from overflowing into the receiving cavity 114 and reducing friction with the bottom wall of the cup-shaped portion 111 caused by the rotation of the relay post 13. A bearing 115 is provided on the outside of the relay post 13 to support and rotate the relay post 13 and reduce wear and tear during rotation of the relay post 13. Furthermore, because the sealing member 116 and the bearing 115 are provided within the receiving cavity 114, they are effectively protected and can be prevented from being damaged by dust or external forces.

[0070] According to some embodiments of the present application, selectively refer to Fig. 7, which is a cross-sectional view showing that the injection head 12 in the injection device of some embodiments of the present application is recessed into the support stage 32. A recess 322 that matches the shape of the injection head 12 is provided on the support surface 321 of the support stage 32, and the first transmission mechanism 20 further presses the injection head 12 and the replaceable wiping member 31 that is in contact with the injection head 12 into the recess 322 after the injection head 12 comes into contact with the replaceable wiping member 31.

[0071] In one embodiment, the support stage 32 is made of metal, and the support surface 321 has a pre-formed recess 322 that matches the shape of the injection head 12. The first transmission mechanism 20 drives the injection head 12 to contact the replaceable wiping member 31, and then pushes the injection head 12 and the replaceable wiping member 31 that is in contact with the injection head 12 into the recess 322 of the support stage 32, and the replaceable wiping member 31 wipes the injection head 12.

[0072] By providing a recess 322 that matches the shape of the liquid injection head 12 on the support surface 321 of the support stage 32, the replaceable wiping member 31 can encase the circumferential surface of the liquid injection head 12, further enhancing the cleaning effect of the liquid injection head 12.

[0073] According to some embodiments of the present application, the change in the contact position and relative rotation between the replaceable wiping member 31 and the liquid injection head 12 may optionally be realized in other ways; for example, see Fig. 8, which is a front view of a liquid injection device according to some embodiments of the present application, in which a stage adjustment mechanism 34 is used. In this embodiment, the mounting mechanism 30 further includes a stage adjustment mechanism 34, and the stage adjustment mechanism 34 is configured to transmit the support stage 32 and the replaceable wiping member 31 supported by the support stage 32, thereby bringing the liquid injection head 12 into contact with different positions of the area of ​​the replaceable wiping member 31 supported by the support stage 32.

[0074] Furthermore, the second transmission mechanism 40 is configured to drive the stage adjustment mechanism 34 and the support stage 32 to rotate after the liquid injection head 12 comes into contact with the replaceable wiping member 31, and further to realize relative rotation between the liquid injection head 12 and the replaceable wiping member 31.

[0075] Although the present application has been described with reference to preferred embodiments, various improvements may be made without departing from the scope of the present application, and equivalents may be substituted for elements therein. In particular, as long as there is no structural contradiction, any of the technical features described in each embodiment may be arbitrarily combined. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions encompassed by the claims. [Explanation of symbols]

[0076] 10 Injection assembly 11 Injection body 12 Injection head 13 Relay Pillar 111 Cup-shaped portion 112 Relay Section 113 Injection cavity 114 Containment Cavity 115 Bearings 116 Sealing member 131 Liquid guide passage 132 Liquid guide hole 20 First transmission mechanism 30 Mounting mechanism 31 Replaceable wiping element 32 Support Stage 33 Wiping member adjustment mechanism 34 Stage adjustment mechanism 321 Support surface 322 recess 331 Unwinding mechanism 332 Rewinding mechanism 40 Second transmission mechanism 41 Motor 42 Conveyor Belt 43 Connecting member

Claims

1. a liquid injection assembly including a liquid injection body and a liquid injection head provided on the liquid injection body; a first transmission mechanism for transmitting the infusion assembly; a mounting mechanism used to mount a replaceable wiping member, the mounting mechanism cooperating with the first transmission mechanism so that the liquid injection head can contact different positions of the replaceable wiping member and further so that the liquid injection head is wiped.

2. 2. The liquid injection device according to claim 1, wherein the placement mechanism and the first transmission mechanism are provided so that a contact position between the liquid injection head and the replaceable wiping member changes each time the liquid injection head is wiped.

3. 2. The liquid injection device according to claim 1, wherein the replaceable wiping member is a flexible sheet, the placement mechanism includes a support stage for supporting the replaceable wiping member, and the liquid injection head contacts an area of ​​the replaceable wiping member supported by the support stage.

4. 4. The liquid injection device according to claim 3, wherein the mounting mechanism further includes a wiping member adjustment mechanism that moves the replaceable wiping member relative to the support stage and brings the liquid injection head into contact with different positions of an area of ​​the replaceable wiping member supported by the support stage.

5. 5. The liquid injection device according to claim 4, wherein the replaceable wiping member that is not wiping the liquid injection head is provided in a roll shape, and the wiping member adjustment mechanism includes an unwinding mechanism for unwinding the replaceable wiping member that is not wiping the liquid injection head onto the support stage, and a rewinding mechanism for rewinding the replaceable wiping member that has wiped the liquid injection head.

6. 4. The liquid injection device according to claim 3, wherein the first transmission mechanism is configured to transmit the liquid injection assembly to bring the liquid injection head into contact with different positions of an area of ​​the replaceable wiping member supported by the support stage.

7. 4. The liquid injection device according to claim 3, wherein the mounting mechanism further includes a stage adjustment mechanism, and the stage adjustment mechanism is configured to bring the liquid injection head into contact with different positions of an area of ​​the replaceable wiping member supported by the support stage by transmitting movement of the support stage and the replaceable wiping member supported by the support stage.

8. 8. The liquid injection device according to claim 1, further comprising a second transmission mechanism for transmitting rotation of one of the liquid injection head and the replaceable wiping member relative to the other after the liquid injection head comes into contact with the replaceable wiping member.

9. 9. The liquid injection device according to claim 8, wherein the liquid injection head is rotatably supported by the liquid injection body, and the second transmission mechanism drives the liquid injection head to rotate relative to the liquid injection body and to rotate relative to the replaceable wiping member after contacting the replaceable wiping member.

10. The infusion device according to claim 9 , wherein the second transmission mechanism is fixed to the infusion body, and the first transmission mechanism transmits power to move the second transmission mechanism and the infusion assembly synchronously.

11. 9. The liquid injection device according to claim 8, wherein the rotation axis of the liquid injection head is perpendicular to the support surface of the support stage.

12. 9. The liquid injection device according to claim 8, wherein the liquid injection body includes a cup-shaped portion and an intermediary portion connected to each other, the cup-shaped portion having an injection cavity formed therein, the intermediary portion having a storage cavity formed on a bottom wall of the cup-shaped portion on the opposite side to the injection cavity, the liquid injection assembly further includes an intermediary post rotatably supported within the storage cavity, the liquid injection head is provided on an outer end surface of the intermediary post on the opposite side to the injection cavity and is provided coaxially with the intermediary post, the intermediary post has a liquid guide passage, the bottom wall of the cup-shaped portion has a liquid guide hole aligned with the liquid guide passage, and the liquid injection head communicates with the storage cavity via the liquid guide passage and the liquid guide hole.

13. The injection device described in claim 12, wherein one end of the relay column opposite the injection cavity is exposed from the storage cavity, and the second transmission mechanism is connected to the exposed portion of the relay column and drives the relay column and the injection head to rotate relative to the injection body.

14. 14. The liquid injection device according to claim 13, wherein the second transmission mechanism includes a motor and a conveyor belt, a motor body of the motor is fixed to the liquid injection body, the conveyor belt is wound around an outer circumferential surface of an output shaft of the motor and an outer circumferential surface of an exposed portion of the relay pole, and the rotation axis of the output shaft of the motor is parallel to the rotation axes of the liquid injection head and the relay pole.

15. The liquid injection device according to claim 12, further comprising a bearing and a sealing member located within the accommodating cavity, the bearing being used to rotatably support the relay column, and the sealing member being used to seal between the relay column and the liquid injection body.

16. 4. The liquid injection device according to claim 3, wherein a recessed portion that matches a shape of the liquid injection head is provided on a support surface of the support stage, and the first transmission mechanism further pushes the liquid injection head and the replaceable wiping member that has come into contact with the liquid injection head into the recessed portion after the liquid injection head comes into contact with the replaceable wiping member.

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