Battery liquid injection device

Abstract

The utility model belongs to the technical field of battery manufacturing, and particularly relates to a battery liquid injection device which comprises a base frame and further comprises a liquid injection mechanism which comprises a liquid injection frame, a plurality of rows of liquid injection modules and a first driving unit, the liquid injection frame is installed on the base frame, and the plurality of rows of liquid injection modules are installed on the liquid injection frame; the first driving unit is used for driving the liquid injection frame to move in the first direction. The liquid beating mechanism comprises a liquid beating module, a second driving unit and a third driving unit, the second driving unit is used for driving the third driving unit to move in the second direction, and the third driving unit is used for driving the liquid beating module to move in the first direction; each liquid level identification mechanism is used for sensing and detecting the height of the electrolyte in each row of liquid injection modules; each liquid injection module comprises a control valve mounted at the output end of the liquid injection module; the battery liquid injection monitoring device has the beneficial effects that the battery liquid injection condition does not need to be monitored through manual visual inspection, the human input and downtime are reduced, the production cost is reduced, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to battery manufacturing technical field especially relates to a battery liquid injection device. BACKGROUND

[0002] In the manufacturing and production process of the battery, the liquid injection of the battery is a crucial link, which directly affects the performance, life and safety of the battery.

[0003] In the prior art CN114188678A liquid injection device and liquid injection production line, the liquid injection device is provided with a liquid injection cup, a shutoff valve is installed on the liquid injection cup, and the shutoff valve controls the opening and closing of the liquid injection cup. Although the function of quantitative liquid injection of the liquid injection cup into the battery can be realized, the liquid injection cup may be blocked during the liquid injection process, resulting in that the electrolyte in the liquid injection cup is not completely injected into the battery, thereby affecting the manufacturing and production of the battery.

[0004] At present, for the situation of liquid injection cup blockage, manual monitoring is usually adopted to ensure that the electrolyte in the liquid injection cup is completely injected into the battery. This way has large labor input, large production cost and low automation level. UTILITY MODEL CONTENTS

[0005] The utility model aims at the above-mentioned technical problems, and provides a battery liquid injection device to solve the above-mentioned technical problems.

[0006] Therefore, the utility model provides a battery liquid injection device, which comprises a base frame and further comprises:

[0007] The liquid injection mechanism comprises a liquid injection frame, a plurality of rows of liquid injection modules and a first driving unit. The liquid injection frame is movably installed on the base frame in the first direction. The plurality of rows of liquid injection modules are installed on the liquid injection frame. The first driving unit is installed on the base frame and is used to drive the liquid injection frame to move in the first direction. The liquid injection module is used to inject the battery.

[0008] The liquid injection mechanism comprises a liquid injection module, a second driving unit and a third driving unit. The second driving unit is installed on the base frame and is used to drive the third driving unit to move in the second direction. The third driving unit is used to drive the liquid injection module to move in the first direction. The liquid injection mechanism is used to inject the liquid injection module.

[0009] The plurality of liquid level recognition mechanisms are installed on the liquid injection frame. Each liquid level recognition mechanism is used to inductively detect the height of the electrolyte in each row of liquid injection modules.

[0010] Each liquid injection module comprises a control valve installed on the output end of the liquid injection module. The control valve is used to control the opening and closing of the liquid injection module.

[0011] Further, the liquid level recognition mechanism comprises:

[0012] The mounting rack is adjustably mounted on the liquid injection rack and is movable along the first direction;

[0013] The plurality of detection modules are mounted on the mounting rack and are used for detecting the electrolyte level in each liquid injection module.

[0014] Further, the detection module comprises:

[0015] The measured unit is located in the liquid injection module and floats on the electrolyte;

[0016] The detection unit is mounted on the mounting rack and is used for detecting the position of the measured unit in the first direction.

[0017] Further, the liquid injection module comprises:

[0018] The buffer cup is mounted on the liquid injection rack and is used for buffering the electrolyte output from the liquid injection module;

[0019] The liquid injection needle is mounted at the bottom end of the buffer cup and is used for injecting the electrolyte buffered in the buffer cup into the battery;

[0020] The control valve is mounted on the liquid injection needle and is used for controlling the opening and closing of the liquid injection needle.

[0021] Further, the liquid injection mechanism further comprises:

[0022] The liquid collecting frame is mounted on the top of the liquid injection module and is in communication with the input end of the liquid injection module.

[0023] Further, the liquid injection mechanism further comprises:

[0024] The residual liquid collecting frame is mounted on the fixed rack and is located on one side of the liquid injection module and is used for containing the residual electrolyte in the liquid injection module.

[0025] Further, the second driving unit comprises:

[0026] The moving seat is mounted on the third driving unit;

[0027] The driving component is mounted on the base frame and is used for controlling the movement of the moving seat along the second direction;

[0028] The guide rail assembly is mounted between the base frame and the moving seat.

[0029] Further, the driving component comprises:

[0030] The conveying belt is rotatably mounted on the base frame;

[0031] A driving motor is installed on the base frame for controlling the movement of the transmission belt.

[0032] The moving seat is fixedly connected with the conveying belt.

[0033] Further, the third driving unit comprises:

[0034] A driving cylinder is installed on the moving seat for controlling the movement of the liquid injection module along the first direction.

[0035] A guiding assembly is installed between the liquid injection module and the moving seat.

[0036] Further, the liquid injection module comprises:

[0037] A fixed plate is arranged along the third direction and installed on the driving end of the third driving unit.

[0038] A plurality of liquid delivery pipes are installed on the fixed plate along the third direction.

[0039] The battery liquid injection device has the following advantages:

[0040] The battery liquid injection process is divided into two steps, the electrolyte is first delivered into the liquid injection module by the liquid injection module for storage, then when the battery pack to be injected is transported to the designated position, the liquid injection module of the corresponding row can be opened according to the tray specification of the battery pack, and then the liquid injection module starts to work to inject liquid into the battery, so that the battery liquid injection device can be compatible with various types of battery packs, effectively improving the production efficiency, and the liquid injection amount of the battery can be visualized, so that the battery liquid injection situation can be more intuitively understood and controlled, and the production quality is effectively improved.

[0041] The liquid level recognition mechanism can monitor the output of the liquid injection module, so that the battery liquid injection device does not need manual visual monitoring during the liquid injection process, reducing the labor input and downtime, effectively reducing the production cost and improving the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 is the overall structure schematic diagram of the utility model;

[0043] Figure 2 is the overall structure schematic diagram of another view of the utility model;

[0044] The marks in the figure represent:

[0045] 1, base frame; 2, liquid injection frame; 3, liquid injection module; 31, control valve; 32, buffer cup; 33, liquid injection needle; 34, liquid collection frame; 4, liquid injection module; 41, fixed plate; 42, liquid delivery pipe; 43, residual liquid collection frame; 5, first driving unit; 6, second driving unit; 61, moving seat; 62, guide rail assembly; 63, conveyor belt; 64, driving motor; 7, third driving unit; 71, driving cylinder; 72, guide assembly; 8, liquid level recognition mechanism; 81, mounting frame; 82, detection module; Z, first direction; Y, second direction; X, third direction. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0047] In the description of the present application, it should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship. The techniques, methods and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0048] Embodiment 1:

[0049] The present embodiment provides a battery liquid injection device, comprising a base frame 1, further comprising:

[0050] A liquid injection mechanism, the liquid injection mechanism comprises a liquid injection frame 2, a plurality of rows of liquid injection modules 3 and a first driving unit 5, the liquid injection frame 2 is movably mounted on the base frame 1 along the first direction Z, the plurality of rows of liquid injection modules 3 are mounted on the liquid injection frame 2, the first driving unit 5 is mounted on the base frame 1 and is used to drive the liquid injection frame 2 to move along the first direction Z, and the liquid injection module 3 is used to inject liquid into the battery;

[0051] The liquid injection mechanism comprises a liquid injection module 4, a second driving unit 6 and a third driving unit 7. The second driving unit 6 is installed on the base frame 1 and is used to drive the third driving unit 7 to move along the second direction Y. The third driving unit 7 is used to drive the liquid injection module 4 to move along the first direction Z. The liquid injection mechanism is used to inject electrolyte into the liquid injection module 3.

[0052] A plurality of liquid level identification mechanisms 8 are installed on the liquid injection frame 2. Each liquid level identification mechanism 8 is used to inductively detect the electrolyte height in each row of liquid injection modules 3.

[0053] Each liquid injection module 3 comprises a control valve 31 installed on the output end of the liquid injection module 3. The control valve 31 is used to control the opening and closing of the liquid injection module 3.

[0054] Further, the liquid injection module 4 comprises:

[0055] A fixed plate 41 is arranged along the third direction X and is installed on the driving end of the third driving unit 7.

[0056] A plurality of liquid delivery pipes 42 are installed on the fixed plate 41 along the third direction X.

[0057] In the technical solution, each liquid delivery pipe 42 on the liquid injection module 4 is connected to an external electrolyte storage device. The second driving unit 6 controls the third driving unit 7 to move along the second direction Y, thereby driving the fixed plate 41 to move above one row of liquid injection modules 3 along the second direction Y. The plurality of liquid delivery pipes 42 on the fixed plate 41 are aligned with the input ends of the liquid injection modules 3. Then, the third driving unit 7 controls the fixed plate 41 to descend along the first direction Z, and the electrolyte is injected into the liquid injection modules 3 through the liquid delivery pipes 42. The control valve 31 of the liquid injection module 3 is closed, and the electrolyte is buffered in the liquid injection module 3. After the electrolyte in the row of liquid injection modules 3 is stored to the full, the fixed plate 41 is moved to other rows of liquid injection modules 3 for liquid delivery by the second driving unit 6 and the third driving unit 7. After all the liquid injection modules 3 are stored with electrolyte, the second driving unit 6 and the third driving unit 7 control the liquid injection module 4 to return to the original position, and the external electrolyte storage device stops sending liquid to the liquid delivery pipes 42.

[0058] When the battery group to be injected is transported into the base frame 1 and is located below the injection mechanism, the first driving unit 5 controls the injection frame 2 to move downward along the first direction Z, and the first driving unit 5 can be a lifting cylinder. After the injection frame 2 moves downward along the first direction Z, each row of injection modules 3 can correspond to each row of batteries on the battery group, and then the control valve 31 on each injection module 3 connected with the battery is opened, and the injection module 3 injects electrolyte into the battery. The liquid level recognition mechanism 8 is installed on the injection frame 2. During the process of injecting electrolyte into the battery by the injection module 3, the height of the electrolyte in the injection module 3 is sensed and detected by the liquid level recognition mechanism 8. When the liquid level recognition mechanism 8 senses and detects that there is no liquid or the height of the electrolyte in the injection module 3 drops to a specified position within a specified injection time, the output signal of the liquid level recognition mechanism 8 changes, indicating that the battery injection is normal. If the output signal of the liquid level recognition does not change, it indicates that the battery injection is abnormal, and the staff needs to detect the injection module 3 to determine whether the injection module 3 is blocked or not.

[0059] In summary, the battery injection process is divided into two steps. First, the electrolyte is delivered into the injection module 3 by the liquid injection module 4 for storage. Then, when the battery group to be injected is transported to the specified position, the injection module 3 of the corresponding row number can be opened according to the tray specifications of the battery group, and then the injection module 3 starts to work to inject electrolyte into the battery. This makes the battery injection device compatible with various models of battery groups, effectively improves production efficiency, and makes the injection amount of the battery visual, so that the injection situation of the battery can be more intuitively understood and controlled, effectively improving production quality.

[0060] By setting the liquid level recognition mechanism 8, the output amount of the injection module 3 can be monitored, so that the battery injection device does not need manual visual monitoring of the battery injection during the injection process, reducing labor input and downtime, effectively reducing production cost and improving production efficiency.

[0061] Embodiment 2

[0062] The embodiment provides a battery injection device, which has the following technical features in addition to the technical solutions of the above-mentioned embodiments.

[0063] Further, the liquid level recognition mechanism 8 comprises:

[0064] The mounting frame 81 is movably mounted on the injection frame 2 along the first direction Z;

[0065] The plurality of detection modules 82 are installed on the mounting frame 81 and are used to correspondingly detect the height of the electrolyte in each injection module 3.

[0066] In the technical solution, the mounting rack 81 can be composed of a support and a mounting plate, the mounting plate is movably arranged on the support in the first direction Z, and a plurality of detection modules 82 are arranged in a linear array in the third direction X on the mounting plate, so that each liquid injection module 3 in the row can be correspondingly detected.

[0067] The mounting connection between the mounting plate and the support can be that a plurality of mounting holes or waist-shaped holes are arranged on the support in the first direction Z, the fixing plate 41 is connected and fixed with the mounting holes or the waist-shaped slots through the fasteners, and the position adjustment of the mounting plate in the first direction Z can be realized; or an electric cylinder is arranged on the support, and the mounting plate is fixedly arranged on the output end of the electric cylinder, and the movement of the mounting plate in the first direction Z can be controlled by the driving of the electric cylinder.

[0068] Because the injection amount of electrolyte of different specifications and sizes of batteries is different, the drop amount of electrolyte in the liquid injection module 3 is also different. Through the above structural design, the detection module 82 can adjust the mounting height of the battery on the support according to different specifications, so as to realize the liquid level detection of different height positions of the liquid injection module 3, and effectively improve the compatibility.

[0069] Embodiment 3:

[0070] The embodiment provides a battery liquid injection device, in addition to comprising the technical solutions of the above embodiments, further having the following technical features.

[0071] Further, the detection module 82 comprises:

[0072] The measured unit is located in the liquid injection module 3 and floats on the electrolyte;

[0073] The detection unit is installed on the mounting rack 81 and is used for detecting and identifying the position of the measured unit in the first direction Z.

[0074] In the technical solution, the measured unit can be a float or a substance that can float on the surface of the electrolyte, and the detection unit can be a capacitive sensor that can detect the position of the float. The height position of the float is detected, so that the liquid surface position of the electrolyte is judged, and the injection amount of the battery is analyzed, and the practicability is high.

[0075] Embodiment 4:

[0076] The embodiment provides a battery liquid injection device, in addition to comprising the technical solutions of the above embodiments, further having the following technical features.

[0077] Further, the liquid injection module 3 comprises:

[0078] The buffer cup 32 is installed on the liquid injection rack 2 and is used for buffering the electrolyte output from the liquid injection module 4.

[0079] The liquid injection needle 33 is installed at the bottom end of the buffer cup 32, and is used to inject the electrolyte stored in the buffer cup 32 into the battery.

[0080] The control valve 31 is installed on the liquid injection needle 33, and is used to control the opening and closing of the liquid injection needle 33.

[0081] In the technical solution, the liquid injection needle 33 is arranged at the bottom of the buffer cup 32 and communicates with the inside of the buffer cup 32. The control valve 31 can be a pneumatic valve installed on the liquid injection needle 33, and is used to control the opening and closing of the liquid injection needle 33. The liquid injection module 4 moves above the buffer cup 32, the liquid injection pipe 42 of the liquid injection module 4 delivers liquid into the buffer cup 32, and the control valve 31 controls the liquid injection needle 33 to be closed, so that the electrolyte can be stored in the buffer cup 32. When the liquid injection module 3 needs to inject liquid into the battery, the control valve 31 controls the liquid injection needle 33 to be opened, and the electrolyte can be injected into the battery through the liquid injection needle 33, thereby realizing the battery liquid injection.

[0082] Embodiment 5:

[0083] The embodiment provides a battery liquid injection device, which comprises the technical solutions of the above-mentioned embodiments, and has the following technical features.

[0084] Further, the liquid injection mechanism further comprises:

[0085] The liquid collecting frame 34 is installed at the top of the liquid injection module 3 and communicates with the input end of the liquid injection module 3.

[0086] In the technical solution, a plurality of liquid passing holes are arranged at the bottom of the liquid collecting frame 34, the number of the liquid passing holes is consistent with the number of the buffer cups 32, and each liquid passing hole communicates with the opening of each buffer cup 32. Through the structure design, when the liquid injection module 4 moves from above one row of buffer cups 32 to above another row of buffer cups 32 along the second direction Y, the liquid collecting frame 34 can collect the liquid leakage in the moving process, avoid the electrolyte from dropping on the base to cause pollution, and the collected liquid can also flow into the buffer cup 32 through the liquid passing hole for storage, thereby having high practicability.

[0087] Embodiment 6:

[0088] The embodiment provides a battery liquid injection device, which comprises the technical solutions of the above-mentioned embodiments, and has the following technical features.

[0089] Further, the liquid injection mechanism further comprises:

[0090] The residual liquid collecting frame 43 is installed on the fixed frame and located at one side of the liquid injection module 3, and is used to contain the residual electrolyte in the liquid injection module 4.

[0091] In the technical solution, when all the buffer cups 32 of the liquid injection mechanism complete the liquid storage, the second driving unit 6 and the third driving unit 7 control the liquid injection module 4 to move to the initial position and be stationary above the residual liquid collection frame 43, so that the residual electrolyte in each liquid delivery pipe 42 of the liquid injection module 4 can drop into the residual liquid collection frame 43 for collection, thereby avoiding resource waste and environmental pollution.

[0092] Embodiment 7:

[0093] The embodiment provides a battery liquid injection device, which comprises the technical solutions of the above embodiments and has the following technical features.

[0094] Further, the second driving unit 6 comprises:

[0095] The moving seat 61, and the third driving unit 7 is installed on the moving seat 61;

[0096] The driving component, which is installed on the base frame 1 and is used to control the moving seat 61 to move along the second direction Y;

[0097] The guide rail assembly 62, which is installed between the base frame 1 and the moving seat 61.

[0098] Further, the driving component comprises:

[0099] The transmission belt 63, which is rotatably installed on the base frame 1;

[0100] The driving motor 64, which is installed on the base frame 1 and is used to control the transmission belt to move;

[0101] The moving seat 61 is fixedly connected with the transmission belt 63.

[0102] In the technical solution, the guide rail assembly 62 is composed of a sliding block and a sliding rail, the sliding rail is arranged on the base frame 1, the sliding block is movably arranged on the sliding rail along the second direction Y, the moving seat 61 is installed on the sliding block and is fixedly connected with the transmission belt 63, the driving motor 64 can drive the transmission belt to move, thereby driving the third driving unit 7 on the moving seat 61 to move along the second direction Y, so that the liquid injection module 4 can move along the second direction Y, and the liquid injection module 4 can sequentially deliver liquid to each row of liquid injection modules 3 along the second direction Y.

[0103] Embodiment 8:

[0104] The embodiment provides a battery liquid injection device, which comprises the technical solutions of the above embodiments and has the following technical features.

[0105] Further, the third driving unit 7 comprises:

[0106] The driving cylinder 71 is installed on the moving seat 61 and is used for controlling the liquid spraying module 4 to move in the first direction Z.

[0107] The guide assembly 72 is installed between the liquid spraying module 4 and the moving seat 61.

[0108] In the technical solution, the fixed plate 41 of the liquid spraying module 4 is connected and fixed with the output end of the driving cylinder 71, the driving cylinder 71 is used for controlling the liquid spraying module 4 to move in the first direction Z through the extension and retraction movement. The guide assembly 72 is composed of a linear bearing and a guide rod, the linear bearing is installed on the fixed plate 41, the guide rod is arranged on the moving seat 61 and is in sliding connection with the linear bearing, through the structure design, the moving stability of the liquid spraying module 4 in the first direction Z can be effectively enhanced.

[0109] The embodiments of the application are described above in combination with the drawings, the embodiments in the application and the features in the embodiments can be combined with each other in the case of no conflict, the application is not limited to the above-mentioned specific embodiments, the above-mentioned specific embodiments are only illustrative and not restrictive, the person skilled in the art can make many forms under the inspiration of the application without departing from the purpose of the application and the scope protected by the claims, all of which belong to the protection of the application.

Claims

1. A battery liquid injection device comprising a base frame (1), characterized in that, Also include: Liquid injection mechanism, the liquid injection mechanism includes liquid injection frame (2), several rows of liquid injection module (3) and first drive unit (5), the liquid injection frame (2) is movably installed on the base frame (1) along the first direction (Z), several rows of the liquid injection module (3) is installed on the liquid injection frame (2), the first drive unit (5) is installed on the base frame (1), and the liquid injection frame (2) is driven to move along the first direction (Z), the liquid injection module (3) is used to inject liquid into the battery; Liquid injection mechanism, the liquid injection mechanism includes liquid injection module (4), second drive unit (6) and third drive unit (7), the second drive unit (6) is installed on the base frame (1) and is used to drive the third drive unit (7) to move along the second direction (Y), the third drive unit (7) is used to drive the liquid injection module (4) to move along the first direction (Z), and the liquid injection mechanism is used to inject liquid into the liquid injection module (3); Several liquid level recognition mechanisms (8), several liquid level recognition mechanisms (8) are installed on the liquid injection frame (2), and each liquid level recognition mechanism (8) is used to inductively detect the electrolyte height in each row of the liquid injection module (3); Wherein, each liquid injection module (3) comprises a control valve (31) installed on the output end of the liquid injection module (3), and the control valve (31) is used to control the opening and closing of the liquid injection module (3).

2. The battery liquid injecting apparatus according to claim 1, wherein The liquid level recognition mechanism (8) comprises: Mounting bracket (81), the mounting bracket (81) is movably installed on the liquid injection frame (2) along the first direction (Z); Several detection modules (82), several detection modules (82) are installed on the mounting bracket (81), and are used to correspondingly detect the electrolyte height in each liquid injection module (3).

3. The battery liquid injecting apparatus according to claim 2, wherein The detection module (82) comprises: Measured unit, the measured unit is located in the liquid injection module (3) and floats on the electrolyte; Detection unit, the detection unit is installed on the mounting bracket (81), and is used to detect and identify the position of the measured unit in the first direction (Z).

4. The battery liquid injecting apparatus according to claim 1, wherein The liquid injection module (3) comprises: Buffer cup (32), the buffer cup (32) is installed on the liquid injection frame (2), and is used to buffer the electrolyte output from the liquid injection module (4); Liquid injection needle (33), the liquid injection needle (33) is installed at the bottom end of the buffer cup (32), and is used to inject the electrolyte buffered in the buffer cup (32) into the battery; Wherein, the control valve (31) is installed on the liquid injection needle (33), and is used to control the opening and closing of the liquid injection needle (33).

5. The battery liquid injecting apparatus according to claim 1, wherein The liquid injection mechanism further comprises: Liquid collecting frame (34), the liquid collecting frame (34) is installed on the top of the liquid injection module (3) and communicates with the input end of the liquid injection module (3).

6. The battery liquid injecting apparatus according to claim 1, wherein The liquid injection mechanism further comprises: Residual liquid collecting frame (43), the residual liquid collecting frame (43) is installed on the fixed frame and located on one side of the liquid injection module (3), and is used to contain the residual electrolyte in the liquid injection module (4).

7. The battery liquid injecting apparatus according to claim 1, wherein The second drive unit (6) comprises: Moving seat (61), the third drive unit (7) is installed on the moving seat (61); A driving component is installed on the base frame (1) for controlling the movement of the moving seat (61) along the second direction (Y); A guide rail assembly (62) is installed between the base frame (1) and the moving seat (61).

8. The battery liquid injecting apparatus according to claim 7, wherein The driving component comprises: A conveying belt (63) is rotatably installed on the base frame (1); A driving motor (64) is installed on the base frame (1) for controlling the movement of the conveying belt; The moving seat (61) is fixedly connected with the conveying belt (63).

9. The battery liquid injecting apparatus according to claim 1, wherein The third driving unit (7) comprises: A driving cylinder (71) is installed on the moving seat (61) for controlling the movement of the liquid spraying module (4) along the first direction (Z); A guide assembly (72) is installed between the liquid spraying module (4) and the moving seat (61).

10. The battery liquid injecting apparatus according to claim 1, wherein The liquid spraying module (4) comprises: A fixed plate (41) is arranged along the third direction (X) and installed on the driving end of the third driving unit (7); A plurality of infusion tubes (42) are equidistantly installed on the fixed plate (41) along the third direction (X).

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