Liquid adding device and automated production equipment

Abstract

The utility model discloses a kind of liquid adding device and automation production equipment, it is related to fiber production technical field, liquid adding device includes: base, mechanical arm, liquid adding assembly and controller, can coordinate mechanical arm and clamp by controller, realize the automatic separation or connection of liquid adding head and mounting rack, realize liquid suction and liquid discharge by controlling liquid extraction pump, so as not to need experimental personnel manual operation liquid suction and liquid discharge process, not only significantly reduce the technical requirement to operator, make operation more simple and fast, also can support the efficient transfer of large quantities of liquid, greatly improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of production equipment technology, and in particular to a liquid adding device and automated production equipment. Background Technology

[0002] In related technologies, quantitative liquid transfer is mainly done manually. Existing manual quantitative liquid transfer methods typically use pipettes or burettes and require manual control of the aspiration and dispensing process using a wash bulb. However, this method requires a high level of technical skill from the experimenter, is cumbersome, and cannot handle large-volume liquid transfers. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a liquid dispensing device that not only significantly reduces the technical requirements for operators, making operation simpler and faster, but also supports the efficient transfer of large quantities of liquid, greatly improving work efficiency.

[0004] The liquid addition device provided according to the embodiments of this utility model includes:

[0005] Base;

[0006] A robotic arm is mounted on the base, and a gripper is connected to the end of the robotic arm;

[0007] The liquid filling assembly includes a mounting frame, multiple liquid filling heads, multiple infusion tubes, and a liquid extraction pump. The mounting frame is connected to the base and located on one side of the robotic arm. Each liquid filling head is detachably connected to the mounting frame, and each liquid filling head is connected to the liquid extraction pump through an infusion tube.

[0008] The controller, the robotic arm, the gripper, and the liquid extraction pump are all electrically connected to the controller;

[0009] The controller controls the robotic arm and the clamp to grip the liquid filling head, so that the liquid filling head can be separated from or connected to the mounting frame.

[0010] According to the liquid dispensing device provided in the embodiment of this utility model, a hanger is provided on one side of the mounting frame, and multiple elastic bands extending from top to bottom are provided at the upper end of the hanger. The lower end of the elastic bands is located above the liquid dispensing head, and each infusion tube is connected to one of the elastic bands.

[0011] According to the liquid dispensing device provided in the embodiment of this utility model, a positioning plate is connected above the mounting frame. The positioning plate is located below the elastic band and is provided with a plurality of positioning holes at intervals. Each of the infusion tubes passes through one of the positioning holes and is connected to one of the elastic bands.

[0012] According to the liquid dispensing device provided in the embodiment of this utility model, the clamp includes a driving member and two grippers. The driving member is connected to the robotic arm, and the two grippers are connected to the driving member at intervals. The driving member can drive the two grippers to move towards or away from each other. The outer wall of the liquid dispensing head is provided with a clamping groove that matches the shape of the grippers. When the clamp picks up the liquid dispensing head, the grippers are engaged in the clamping groove.

[0013] According to the liquid dispensing device provided in the embodiment of this utility model, the mounting frame is provided with a plurality of card seats at intervals, each card seat is provided with a plurality of card posts, the plurality of card posts are spaced apart to define a carding position, the liquid dispensing head abuts against the plurality of card posts, and at least a portion of the liquid dispensing head is located within the carding position.

[0014] According to the liquid dispensing device provided in the embodiment of this utility model, the end of the clamping column is provided with an upwardly extending limiting block, and the liquid dispensing head is provided with a limiting groove that cooperates with the limiting block, and the limiting block is inserted into the limiting groove.

[0015] The liquid dispensing device provided according to the embodiments of the present invention further includes a tray, which is located below the plurality of liquid dispensing heads.

[0016] According to the liquid dispensing device provided in this embodiment of the present invention, the liquid dispensing head is connected to a needle tube, and the end of the needle tube is connected to a flexible tube.

[0017] According to the liquid addition device provided in the embodiment of this utility model, the liquid addition component includes a plurality of liquid extraction pumps, and each liquid extraction pump is connected to at least one infusion pipe.

[0018] This utility model embodiment also provides an automated production equipment, including the liquid addition device provided in this utility model embodiment.

[0019] The liquid addition device provided according to the embodiments of this utility model has at least the following beneficial effects: the controller can coordinate the robotic arm and the clamp to realize the automatic separation or connection of the liquid addition head and the mounting frame, and the liquid extraction pump can realize liquid suction and discharge. Therefore, the experimental personnel do not need to manually operate the liquid suction and discharge process, which not only significantly reduces the technical requirements of the operators and makes the operation simpler and faster, but also supports the efficient transfer of large batches of liquids and greatly improves work efficiency.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0022] Figure 1 A schematic diagram of the liquid addition device provided in an embodiment of this utility model;

[0023] Figure 2 This provides a structural schematic diagram of the liquid addition device from another angle, illustrating an embodiment of the present invention.

[0024] Figure 3 A schematic diagram of the clamp, dispensing head, and mounting frame of the liquid dispensing device provided in the embodiments of this utility model.

[0025] The attached icons are numbered as follows:

[0026] 100. Base;

[0027] 200. Robotic arm; 210. Gripper; 211. Drive unit; 212. Gripper;

[0028] 300. Liquid filling assembly; 310. Mounting bracket; 311. Card holder; 312. Carding post; 313. Limiting block; 314. Snap-fit ​​position; 315. Position sensor; 320. Liquid filling head; 321. Needle; 322. Tube; 323. Clamping groove; 324. Limiting groove; 330. Infusion tube; 340. Liquid extraction pump; 350. Hanger; 360. Elastic band; 370. Positioning plate; 371. Positioning hole; 380. Tray. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, left, right, etc., indicating the directional or positional relationship, are based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0033] In related technologies, quantitative liquid transfer is mainly done manually. Existing manual quantitative liquid transfer methods typically use pipettes or burettes and require manual control of the aspiration and dispensing process using a syringe. However, this method requires a high level of technical skill from the experimenter and is cumbersome to operate, and it cannot achieve large-scale (ml-L) liquid transfer.

[0034] The present invention provides a liquid adding device for use in automated production equipment. The specific structure and function of the liquid adding device provided in the present invention will be described below with reference to the text and accompanying drawings.

[0035] Reference Figures 1 to 3 The liquid dispensing device provided according to the embodiment of this utility model includes: a base 100, a robotic arm 200, a liquid dispensing assembly 300, and a controller. The robotic arm 200 is disposed in the middle of the base 100 and is fixedly connected to the base 100 by bolts. The robotic arm 200 is a multi-joint movable structure, capable of flexible movement in multiple directions to realize the removal of the liquid dispensing head 320 and liquid dispensing operations at different positions. A clamp 210 is connected to the end of the robotic arm 200. The clamp 210 can be an electric clamp, capable of opening and closing according to the instructions of the controller, thereby clamping or releasing the liquid dispensing head 320. The liquid dispensing assembly 300 includes a mounting frame 310, multiple liquid dispensing heads 320, multiple infusion tubes 330, and a liquid extraction pump 340. The mounting frame 310 is generally T-shaped, with its lower end connected to the base 100 and located on one side of the robotic arm 200. Multiple dispensing heads 320 are connected at intervals to the upper end of the mounting bracket 310 via detachable connection methods such as snap-fit ​​or fastening. The dispensing heads 320 are common pipette tips, made of plastic, with pointed tips for precise liquid dispensing. A liquid extraction pump 340 is connected to the base 100 and located on one side of the mounting bracket 310. Each dispensing head 320 is connected to the liquid extraction pump 340 via a tubing 330 made of transparent silicone for easy observation of liquid flow. The liquid extraction pump 340 is an electric pump capable of precisely controlling the volume of liquid drawn and discharged according to controller instructions. The controller stores pre-programmed control programs. The robotic arm 200, gripper 210, and liquid extraction pump 340 are all electrically connected to the controller via wires. The controller can control the movement trajectory of the robotic arm 200, the opening and closing of the gripper 210, and the start / stop and liquid volume of the liquid extraction pump 340 according to the preset program.

[0036] In practical use, the liquid dispensing heads 320 are connected to the mounting brackets 310, with each dispensing head 320 corresponding to a specific liquid. The controller then sets parameters such as the type of liquid to be added, the amount to be added, and the dispensing location. After the device is started, the controller, according to a preset program, controls the robotic arm 200 to move to the position corresponding to the dispensing head 320 to be gripped. Then, the controller controls the clamp 210 to open and grip the dispensing head 320, separating it from the mounting brackets 310. Next, the controller controls the robotic arm 200 to move the dispensing head 320 above the liquid container and starts the liquid extraction pump 340 to extract the liquid according to the set amount. After extraction is complete, the controller again controls the robotic arm 200 to move the dispensing head 320 above the target container where the liquid needs to be added and starts the liquid extraction pump 340 again to discharge the liquid into the target container. After completing one liquid addition operation, the controller moves the clamp 210 to the mounting bracket 310 and releases the liquid addition head 320, allowing the liquid addition head 320 to reconnect to the mounting bracket 310. If multiple liquids need to be added, the controller will sequentially control the robotic arm 200 to grip different liquid addition heads 320 according to a preset sequence, repeating the above liquid addition process until all liquid addition operations are completed.

[0037] According to the liquid addition device provided in this embodiment, the controller can coordinate the robotic arm 200 and the clamp 210 to achieve automatic separation or connection between the liquid addition head 320 and the mounting frame 310. The liquid extraction pump 340 is controlled to achieve liquid suction and discharge, thus eliminating the need for manual operation of the suction and discharge process by experimental personnel. This significantly reduces the technical requirements for operators, making operation simpler and faster, and also supports the efficient transfer of large quantities of liquid, greatly improving work efficiency. Furthermore, relying on the liquid addition device, the liquid extraction pump 340 can be precisely controlled to achieve accurate transfer of liquids from milliliters to liters, with an error typically below ±0.1% across the entire range. It can also continuously and uninterruptedly execute the same operating procedure, avoiding fluctuations in results caused by hand tremors and visual judgment biases during manual operation, ensuring the reliability of experimental data.

[0038] Reference Figure 3 Optionally, the mounting bracket 310 is equipped with a position sensor 315, which is used to detect whether the liquid filling head 320 has been placed in the mounting bracket 310. If the liquid filling head 320 has been placed, the controller controls the robotic arm 200 and the clamp 210 to place the liquid filling head 320 to another position of the mounting bracket 310.

[0039] Reference Figure 1 and Figure 2According to the liquid addition device provided in this embodiment of the present invention, a hanger 350 is provided on the base 100. The hanger 350 is approximately inverted "L" shape, with its lower end fixed by welding or bolt connection and located on one side of the mounting frame 310, and its upper end extending above the mounting frame 310. Multiple elastic bands 360 extending downwards are provided at the upper end of the hanger 350. The elastic bands 360 are made of rubber, which has good elasticity, can freely stretch and contract within a certain range, and is not easily broken.

[0040] The number of elastic bands 360 corresponds to the number of liquid filling heads 320. For example, when there are 10 liquid filling heads 320 on the mounting bracket 310, 10 elastic bands 360 are also installed on the hanger 350. The lower end of the elastic band 360 is located above the liquid filling head 320. The specific position can be adjusted according to the actual situation to ensure that it does not affect the normal loading, unloading and operation of the liquid filling head 320.

[0041] Each infusion tube 330 is connected to an elastic band 360. The connection can be achieved by binding or by the elastic band 360 forming a loop at its end, which is then fitted around the infusion tube 330. During installation, first connect one end of the infusion tube 330 to the infusion head 320 and the other end to the liquid extraction pump 340. Then, bind the middle of the infusion tube 330 to the elastic band 360 using a binding strap or other suitable tool. In this way, the elastic band 360 provides support and fixation for the infusion tube 330, facilitating its retraction and rebound, preventing excessive shaking, tangling, or sagging during use, and ensuring smooth liquid extraction and drainage through the infusion tube 330. Meanwhile, because the elastic band 360 is elastic, when the robotic arm 200 moves the liquid dispensing head 320, the infusion tube 330 can have a certain amount of room to move with the extension and contraction of the elastic band 360, and will not be damaged due to excessive tension, thus improving the stability and reliability of the entire liquid dispensing device.

[0042] Reference Figures 1 to 3 According to the liquid dispensing device provided in this embodiment of the present invention, a positioning plate 370 is connected above the mounting bracket 310. The positioning plate 370 is arranged horizontally and positioned below the elastic band 360, maintaining a suitable distance between itself and the elastic band 360. This distance can be set according to actual conditions to ensure that it does not affect the normal expansion and contraction of the elastic band 360, while also providing good positioning for the infusion tube 330. The positioning plate 370 is provided with a plurality of positioning holes 371 at intervals. The number of positioning holes 371 is consistent with the number of infusion tubes 330, and the position of each positioning hole 371 corresponds to the position of the corresponding liquid dispensing head 320 below and the elastic band 360 above.

[0043] When installing the infusion tubes 330, first connect the infusion tubes 330 to the dispensing head 320 and the elastic band 360. Then, insert each infusion tube 330 into a positioning hole 371 on the positioning plate 370. The inner diameter of the positioning hole 371 is slightly larger than the outer diameter of the infusion tube 330. This ensures that the infusion tube 330 can pass smoothly through the positioning hole 371, and also provides some restraint after the infusion tube 330 passes through, preventing it from swaying freely in the horizontal direction. The positioning plate 370 and the positioning holes 371 further standardize the routing of the infusion tubes 330, making the internal pipeline layout of the entire dispensing device more neat and orderly. This not only facilitates observation and maintenance but also effectively avoids mutual interference and entanglement between the infusion tubes 330, improving the stability and reliability of the dispensing device and ensuring that the liquid can be transferred accurately and smoothly through the infusion tubes 330.

[0044] It should be noted that the connection method between the infusion tube 330, the infusion head 320, and the liquid extraction pump 340 is a conventional technical means that can be used by those skilled in the art, and will not be described in detail here.

[0045] Reference Figures 1 to 3 According to the liquid dispensing device provided in this embodiment of the present invention, the clamp 210 mainly consists of a driving component 211 and two grippers 212. The driving component 211 is connected to the robotic arm 200 and can be a two-way cylinder, a two-way lead screw, etc. The two grippers 212 are respectively fixed to the driving component 211 by bolts. The driving component 211 can drive the two grippers 212 to move towards or away from each other. The outer wall of the liquid dispensing head 320 is provided with a clamping groove 323 that matches the shape of the grippers 212. The shape of the clamping groove 323 is a groove that is adapted to the grippers 212. In actual use, when it is necessary to clamp the liquid dispensing head 320, the controller controls the robotic arm 200 to move the clamp 210 to the position of the liquid dispensing head 320. Then the driving component 211 works to make the two grippers 212 move towards each other and engage in the clamping groove 323 on the outer wall of the liquid dispensing head 320, thereby realizing the stable clamping of the liquid dispensing head 320 by the clamp 210. When the liquid filling operation is completed and the filling head 320 needs to be returned to the mounting bracket 310, the drive unit 211 operates again, causing the two grippers 212 to move in opposite directions, releasing the filling head 320 and allowing it to smoothly connect to the mounting bracket 310. This makes the connection between the clamp 210 and the filling head 320 more stable and reliable, effectively preventing the filling head 320 from falling off during operation and improving the working efficiency and stability of the entire liquid filling device.

[0046] Optionally, a positioning sensor may be provided on the end of the robotic arm 200 or on the gripper 210. The positioning sensor may be a camera, a laser positioner, or the like, to achieve positioning of the end of the robotic arm 200 or the gripper 210.

[0047] Reference Figure 3According to the liquid dispensing device provided in this embodiment of the present invention, the mounting frame 310 is provided with multiple card holders 311 at intervals. The number of card holders 311 can be set according to the number of liquid dispensing heads 320. For example, in this embodiment, there are 10 card holders 311. Each card holder 311 is provided with multiple card posts 312. The number of card posts 312 can be 4, 6, etc., which can be set according to requirements. The card posts 312 are integrally formed with the card holders 311 to ensure the integrity and stability of the structure. The multiple card posts 312 are spaced apart to define a locking position 314 that matches the shape of the liquid dispensing head 320. The locking position 314 is roughly cylindrical in the shape of a groove and matches the liquid dispensing head 320. The diameter of the locking position 314 is slightly larger than the outer diameter of the liquid dispensing head 320 to ensure that the liquid dispensing head 320 can be stably placed therein. When actually installing the liquid dispensing head 320, the liquid dispensing head 320 is aligned and placed into the locking position 314. After placement, the filling head 320 abuts against multiple retaining posts 312, with at least a portion of the filling head 320 located within the retaining position 314. The retaining posts 312 apply a certain supporting force to the filling head 320 from different directions, thereby firmly fixing the filling head 320 onto the mounting frame 310. This ensures that the filling head 320 will not wobble on the mounting frame 310, thus preventing subsequent gripping operations, and can be easily gripped and removed by the robotic arm 200 and clamp 210 when needed for filling operations. Simultaneously, multiple retaining seats 311 are spaced apart on the mounting frame 310, allowing for flexible arrangement of different types or specifications of filling heads 320 according to actual needs, improving the applicability and practicality of the filling device.

[0048] Reference Figure 3 According to the liquid dispensing device provided in this embodiment of the present invention, the end of the locking post 312 is provided with an upwardly extending limiting block 313. The limiting block 313 is generally square and integrally formed with the locking post 312. The liquid dispensing head 320 is provided with a locking plate at a corresponding position. The locking plate is provided with a limiting groove 324 that cooperates with the limiting block 313. The depth and width of the limiting groove 324 are adapted to the limiting block 313 to ensure that the limiting block 313 can be smoothly inserted. When the liquid dispensing head 320 is placed into the locking position 314, the limiting block 313 at the end of the locking post 312 is precisely inserted into the limiting groove 324 of the liquid dispensing head 320.

[0049] Optional, refer to Figure 3The card holder 311 has four locking posts 312, with two posts 312 spaced apart at the upper end and the other two spaced apart at the lower end. Each of the four posts 312 has an upwardly extending limiting block 313 at its end. The liquid dispensing head 320 has locking plates at both its upper and lower ends, with limiting grooves 324 that mate with the limiting blocks 313. During application, the interaction between the limiting blocks 313 and the limiting grooves 324 provides a dual fixing function. On the one hand, the limiting block 313 limits the liquid filling head 320 in the horizontal direction to prevent the liquid filling head 320 from sliding horizontally in the locking position 314, thus avoiding the impact of shaking on the accurate gripping of the subsequent robotic arm 200 and fixture 210. On the other hand, in the vertical direction, the locking of the limiting block 313 and the limiting groove 324 can also prevent the liquid filling head 320 from accidentally falling out of the locking position 314, further improving the stability of the liquid filling head 320 placement.

[0050] Reference Figure 1 and Figure 2 The liquid dispensing device provided according to the embodiment of this utility model also includes a tray 380. The tray 380 is corrosion-resistant, high-strength, and easy to clean, and can adapt to different liquid environments, maintaining good performance even after long-term use. The tray 380 is connected to the base 100 or the bottom of the mounting bracket 310 by fasteners. The tray 380 is located below multiple liquid dispensing heads 320 and is rectangular in shape. Its size is designed according to the distribution range of the liquid dispensing heads 320 on the mounting bracket 310, ensuring that it can completely cover the area below all liquid dispensing heads 320 during normal operation.

[0051] When the filling head 320 is performing a filling operation, liquid may drip, such as when replacing the filling head 320, during a brief pause in the filling process, or when there is residual liquid inside the filling head 320. In this case, the dripping liquid will fall directly into the tray 380 below, and will not drip onto other parts of the filling device or the working environment. This not only prevents the liquid from corroding the mechanical parts of the filling device, extending the service life of the equipment, but also keeps the working environment clean and reduces potential safety hazards caused by liquid leakage.

[0052] In addition, the bottom of the tray 380 can be set at a certain angle, and a drain port is set at the lowest point. The drain port is connected to an external waste liquid collection container through a pipe. When a certain amount of liquid accumulates in the tray 380, the liquid can be smoothly discharged into the waste liquid collection container by opening the valve at the drain port, which facilitates subsequent liquid treatment and recycling, further improving the environmental friendliness and ease of use of the liquid dispensing device.

[0053] Reference Figure 3According to the liquid dispensing device provided in this embodiment of the present invention, the dispensing head 320 is connected to a needle tube 321. The diameter of the needle tube 321 is designed according to the actual liquid dispensing requirements. For example, for situations where precise control of the liquid dispensing volume is required and the liquid viscosity is low, a needle tube 321 with a smaller diameter can be selected to achieve more precise flow control; while for scenarios where the liquid dispensing volume is large and the liquid viscosity is high, a needle tube 321 with a slightly larger diameter can be selected to improve the liquid dispensing efficiency. The needle tube 321 is tightly connected to the dispensing head 320 by a snap-fit ​​or threaded connection. This connection method is not only convenient for installation and disassembly, facilitating the cleaning and replacement of the needle tube 321, but also provides a firm connection, effectively preventing the needle tube 321 from falling off during the liquid dispensing process.

[0054] The end of the syringe 321 is connected to a flexible tube 322. The flexible tube 322 is made of silicone or rubber and is characterized by its softness, good elasticity, and chemical stability. It can adapt to the liquid dispensing needs at different angles and positions and will not chemically react with most liquids, ensuring the safety and reliability of the liquid dispensing process. The connection between the flexible tube 322 and the syringe 321 can be an interference fit or a sleeve connection secured with a clamp, thereby preventing the flexible tube 322 from falling off the syringe 321 during use.

[0055] In actual liquid addition operation, the dispensing head 320 is moved above the container requiring liquid addition by the robotic arm 200, with the syringe 321 and tubing 322 moving together. Once in the appropriate position, the liquid extraction pump 340 starts operating, and the liquid flows sequentially through the dispensing head 320, syringe 321, and tubing 322, ultimately flowing into the target container. Due to the flexibility of the tubing 322, it avoids scratching the container and allows for easy bending and orientation adjustment, adapting to containers of different shapes and positions. This facilitates accurate injection of liquid into the designated location within the container, greatly improving the applicability and flexibility of the dispensing device.

[0056] Reference Figure 1 and Figure 2According to the liquid addition device provided in this embodiment, the liquid addition component 300 includes multiple liquid extraction pumps 340, which are arranged side by side in the liquid addition device and installed on one side of the mounting frame 310. This reasonable layout design saves space and facilitates maintenance and repair of each liquid extraction pump 340. Each liquid extraction pump 340 is independently controlled. Through the corresponding control program, the start-up, stop, and flow rate of each liquid extraction pump 340 can be precisely controlled according to actual liquid addition needs. For example, when different types or amounts of liquid need to be added to multiple containers simultaneously, the controller can place different liquid addition heads 320 into the containers and then control each liquid extraction pump 340 to operate according to preset parameters. Each liquid extraction pump 340 accurately delivers the corresponding liquid to the target container through a connected delivery pipe 330, realizing multi-channel and diversified liquid addition operations, greatly improving liquid addition efficiency and flexibility, and meeting the liquid addition needs in complex production scenarios.

[0057] Optionally, the liquid extraction pump 340 includes a drive mechanism, a sleeve, and a piston. The sleeve has a cavity, and the piston is disposed within the cavity. The drive mechanism drives the piston to move, thereby drawing liquid into or out of the cavity. Each liquid extraction pump 340 is connected to at least one infusion tube 330. For example, the liquid dispensing device includes nine dispensing heads 320, nine infusion tubes 330, and three liquid extraction pumps 340. In this case, each liquid extraction pump 340 is connected to three infusion tubes 330, so that all infusion tubes 330 can be connected to the liquid extraction pumps 340.

[0058] Optionally, the number of liquid inlet heads 320 and the number of liquid extraction pumps 340 can be set according to actual needs. When one liquid extraction pump 340 is connected to more than one infusion tube 330, each time a different liquid is extracted, it is necessary to first control the liquid extraction pump 340 and the liquid inlet head 320 to draw cleaning fluid for cleaning, and then draw new liquid.

[0059] Optionally, the specific structure of the liquid extraction pump 340 can be set or selected according to actual needs. Each liquid extraction pump 340 is connected to at least two infusion tubes 330. Different infusion tubes 330 are connected to different liquid infusion heads 320. In actual application, different liquid infusion heads 320 can be moved to different containers by the robotic arm 200 to realize the liquid extraction and infusion process between different containers. Furthermore, by controlling the liquid extraction pump 340, liquid extraction, infusion, or suction can be carried out simultaneously between different containers.

[0060] This utility model embodiment also provides an automated production equipment, including the liquid addition device provided in this utility model embodiment, and the automated production equipment has all the beneficial effects of the liquid addition device.

[0061] Optionally, automated production equipment can be used in fields such as materials science and biomedical research and development.

[0062] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A liquid dispensing device, characterized in that, include: Base (100); A robotic arm (200) is disposed on the base (100), and a clamp (210) is connected to the end of the robotic arm (200); The liquid filling assembly (300) includes a mounting frame (310), multiple liquid filling heads (320), multiple infusion tubes (330), and a liquid extraction pump (340). The mounting frame (310) is connected to the base (100) and located on one side of the robotic arm (200). Each liquid filling head (320) is detachably connected to the mounting frame (310). The liquid extraction pump (340) is connected to the base (100). Each liquid filling head (320) is connected to the liquid extraction pump (340) through an infusion tube (330). The controller, the robotic arm (200), the gripper (210), and the liquid extraction pump (340) are all electrically connected to the controller; The controller controls the robotic arm (200) and the clamp (210) to cooperate in gripping the liquid filling head (320) so that the liquid filling head (320) can be separated from or connected to the mounting bracket (310).

2. The liquid addition device according to claim 1, characterized in that, The mounting bracket (310) has a hanger (350) on one side. The upper end of the hanger (350) is provided with multiple elastic bands (360) extending from top to bottom. The lower end of the elastic bands (360) is located above the infusion head (320). Each infusion tube (330) is connected to one of the elastic bands (360).

3. The liquid addition device according to claim 2, characterized in that, A positioning plate (370) is connected above the mounting bracket (310). The positioning plate (370) is located below the elastic band (360) and is provided with a plurality of positioning holes (371) at intervals. Each infusion tube (330) passes through one of the positioning holes (371) and is connected to one of the elastic bands (360).

4. The liquid addition device according to claim 1, characterized in that, The clamp (210) includes a drive member (211) and two grippers (212). The drive member (211) is connected to the robotic arm (200), and the two grippers (212) are connected to the drive member (211) at intervals. The drive member (211) can drive the two grippers (212) to move towards or away from each other. The outer wall of the liquid dispensing head (320) is provided with a clamping groove (323) that matches the shape of the grippers (212). When the clamp (210) clamps the liquid dispensing head (320), the grippers (212) are engaged in the clamping groove (323).

5. The liquid addition device according to claim 1, characterized in that, The mounting bracket (310) is provided with a plurality of card holders (311) at intervals, each card holder (311) is provided with a plurality of card posts (312), the plurality of card posts (312) are spaced apart to define a card contact position (314), the liquid dispensing head (320) abuts against the plurality of card posts (312), and at least a portion of the liquid dispensing head (320) is located within the card contact position (314).

6. The liquid addition device according to claim 5, characterized in that, The end of the locking post (312) is provided with an upwardly extending limiting block (313), and the liquid dispensing head (320) is provided with a limiting groove (324) that cooperates with the limiting block (313), and the limiting block (313) is inserted into the limiting groove (324).

7. The liquid addition device according to any one of claims 1 to 6, characterized in that, It also includes a tray (380) located below the plurality of liquid dispensing heads (320).

8. The liquid addition device according to any one of claims 1 to 6, characterized in that, The dispensing head (320) is connected to a syringe (321), and the end of the syringe (321) is connected to a flexible tube (322).

9. The liquid addition device according to any one of claims 1 to 6, characterized in that, The liquid dispensing assembly (300) includes a plurality of liquid extraction pumps (340), each of the liquid extraction pumps (340) being connected to at least one of the infusion tubes (330).

10. An automated production equipment, characterized in that, Includes the liquid dispensing device as described in any one of claims 1 to 9.

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