Lithium battery slurry weighing device

Abstract

A lithium battery slurry weighing device comprises a first weighing main body and a second weighing main body which are matched with each other, the first weighing main body comprises a weighing barrel and a weighing module used for weighing the weighing barrel, the second weighing main body comprises a platform scale matched with the weighing module, and a slurry barrel is placed on the platform scale; a feeding pipe which can be communicated with the slurry barrel is arranged at the top end of the weighing barrel, and a discharging pipe is further arranged at the bottom end of the weighing barrel; compared with the prior art, the weighing barrel is weighed through the weighing structure, and then the slurry in the weighing barrel is conveyed into the stirrer through the discharging pipe, so that the weight of the slurry meets set data, the accuracy is improved, and the quality of the lithium battery is further improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery manufacturing technology, specifically to a lithium battery slurry weighing device. Background Technology

[0002] In the lithium battery manufacturing process, the batching system determines the production efficiency and quality of lithium batteries. Currently, the automated batching system in lithium battery mass production lines is designed for batch production. Its weighing module has a large range, while the auxiliary materials in lithium battery formulations generally have a relatively small proportion of gravity, making it difficult to measure them using an online batching and weighing system. Conventional processes use offline manual metering and feeding methods. However, for factories with multiple mixing devices and multiple processes, this manual feeding method is prone to errors and omissions, and cannot be traced.

[0003] Chinese Patent Application No. 202311752223.9 discloses a slurry preparation device for lithium iron phosphate battery production. This slurry preparation device includes a base, a support platform fixedly mounted on the top of the base, a mixing cylinder on the upper side of the support platform, an mounting plate fixedly mounted on the rear side of the top of the mixing cylinder, a rapid dispensing component on the upper side of the base, a mixing and stirring component inside the base and the mixing cylinder, an external gear ring fixedly mounted on the middle of the surface of the mixing cylinder, a discharge valve fixedly mounted on the lower part of the surface of the mixing cylinder, and a feed pipe fixedly mounted on the upper part of the surface of the mixing cylinder. Chinese Patent Application No. 202323187837.5 discloses a weighing tank for lithium battery slurry production. This weighing tank includes a conveying device, a pushing device on one side of the conveying device, and a weighing device on the side of the conveying device away from the pushing device.

[0004] The aforementioned prior art uses a weighing box to weigh the batching box. However, in the prior art, the slurry adheres to the pipe wall during the conveying process, and the slurry on the pipe wall cannot be calculated during weighing, resulting in inaccurate final weighing results. Consequently, the final batching weight does not match the set batching data, leading to a reduction in the quality of the lithium battery. Utility Model Content

[0005] The present invention aims to overcome the defects in the prior art and provide a lithium battery slurry weighing device that can accurately weigh the slurry and ensure that the weight of the slurry meets the set data.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a lithium battery slurry weighing device, comprising a first weighing body and a second weighing body that cooperate with each other. The first weighing body includes a weighing barrel and a weighing module for weighing the weighing barrel. The second weighing body includes a platform scale that cooperates with the weighing module, on which the slurry barrel is placed. The top of the weighing barrel is provided with an inlet pipe that can be connected to the slurry barrel, and the bottom of the weighing barrel is also provided with an outlet pipe.

[0007] As a preferred embodiment of this utility model, the weighing module includes weighing plates located on opposite sides of the weighing barrel, and the weighing plates are provided with weighing components for weighing the weight of the weighing barrel.

[0008] As a preferred embodiment of this utility model, the outer wall of the weighing barrel is provided with supporting ears, which are located on opposite sides of the weighing barrel and rest on the weighing component.

[0009] As a preferred embodiment of this utility model, the first weighing body further includes a frame for fixing the weighing plate, and the weighing bucket is suspended in the frame.

[0010] As a preferred embodiment of this utility model, the frame is provided with a slurry filter and a two-way ball valve connected together. The two-way ball valve is connected to the top of the weighing tank, and the feed pipe is connected to the slurry filter.

[0011] As a preferred embodiment of this utility model, the frame is provided with several clamps distributed along the height direction, and the feed pipe is detachably clamped to the clamps.

[0012] As a preferred embodiment of this utility model, the frame is also provided with a three-way ball valve connected to the discharge pipe. The three-way ball valve is provided with a connecting pipe connected to the top of the weighing barrel and a conveying pipe for discharging slurry.

[0013] As a preferred embodiment of this utility model, the top of the slurry tank is provided with a discharge port, and the feed pipe is connected to the discharge port.

[0014] As a preferred embodiment of this utility model, the bottom of the frame is provided with casters for moving the frame, and the end of the frame is provided with a handle for pushing the frame to move.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The slurry in the slurry tank is weighed by a platform scale. The feed pipe transports the slurry in the slurry tank to the weighing tank. The weighing tank is weighed by a weighing structure. Then the slurry in the weighing tank is transported to the mixer through the discharge pipe, so that the weight of the slurry meets the set data, improving accuracy and thus improving the quality of the lithium battery.

[0017] 2. Furthermore, a two-way ball valve and a slurry filter are installed between the feed pipe and the weighing tank to filter the slurry. In addition, a three-way ball valve is connected to the discharge pipe. When too much slurry is discharged from the discharge pipe, the excess slurry can be transported to the weighing tank through the connecting pipe between the three-way ball valve and the weighing tank, thereby preventing excess slurry from entering the mixer. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a structural schematic diagram of the first weighing body of this utility model.

[0020] Reference numerals in the attached drawings: First weighing body 1, frame 101, caster wheel 1011, handle 1012, clamp 1013, weighing tank 102, feed pipe 1021, discharge pipe 1022, support ear 1023; Second weighing body 2, platform scale 201, slurry tank 202, discharge port 2021, weighing module 3, weighing plate 301, weighing component 302, slurry filter 4, two-way ball valve 5, three-way ball valve 6, connecting pipe 601, conveying pipe 602. Detailed Implementation

[0021] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figures 1-2 As shown, a lithium battery slurry weighing device includes a first weighing body 1 and a second weighing body 2 that cooperate with each other. The first weighing body 1 includes a weighing barrel 102 and a weighing module 3 for weighing the weighing barrel 102. The second weighing body 2 includes a platform scale 201 that cooperates with the weighing module 3. The slurry barrel 202 is placed on the platform scale 201. The top of the weighing barrel 102 is provided with a feed pipe 1021 that can be connected to the slurry barrel 202, and the bottom of the weighing barrel 102 is also provided with a discharge pipe 1022.

[0023] Furthermore, the first weighing body 1 and the second weighing body 2 are set independently. The slurry tank 202 containing the slurry is weighed by the platform scale 201, and then the slurry is transported to the weighing tank 102 through the feed pipe 1021. At the same time, the weighing tank 102 is weighed by the weighing module 3. Then, the slurry is transported to the mixer through the discharge pipe 1022. The weighing weight of the weighing module 3 is compared with the calibrated weight on the platform scale 201. Specifically, the weighing weight of the platform scale 201 is subtracted from the weighing weight of the weighing module 3 to obtain the wall-hanging amount in the feed pipe 1021. This wall-hanging amount is divided by the length of the feed pipe 1021 to obtain the wall-hanging amount per unit length of the pipe. This accurately measures the actual weight of the slurry entering the mixer, so that the weight of the slurry meets the set data, improving accuracy and thus improving the quality of the lithium battery.

[0024] The weighing module 3 includes weighing plates 301 located on opposite sides of the weighing barrel 102. Weighing plates 301 are provided with weighing components 302 for weighing the weight of the weighing barrel 102. Furthermore, the weighing barrel 102 is mounted on the weighing plate 301, and the weighing of the weighing barrel 102 is achieved by the weighing components 302 on the weighing plate 301.

[0025] The outer wall of the weighing barrel 102 is provided with support ears 1023. The support ears 1023 are located on opposite sides of the weighing barrel 102 and are mounted on the weighing component 302. Furthermore, the support ears 1023 are located on the outer wall of the weighing barrel 102. By setting the support ears 1023 on the weighing component 302, the symmetrical weighing barrel 102 is fixed and the weighing of the symmetrical weighing barrel 102 is realized.

[0026] The first weighing body 1 also includes a frame 101 for fixing the weighing plate 301. The weighing bucket 102 is suspended in the frame 101. Furthermore, the two weighing plates 301 are located at two opposite corners of the frame 101, and the weighing plates 301 are located in the middle of the frame 101. At this time, the weighing bucket 102 is suspended in the middle of the frame 101.

[0027] The frame 101 is equipped with a slurry filter 4 and a two-way ball valve 5 connected to each other. The two-way ball valve 5 is connected to the top of the weighing tank 102, and the feed pipe 1021 is connected to the slurry filter 4. Furthermore, the two ports of the two-way ball valve 5 are respectively connected to the top of the weighing tank 102 and the slurry filter 4, and the feed pipe 1021 is connected to the slurry filter 4. The slurry entering the weighing tank 102 is filtered through the slurry filter 4 to ensure that the slurry does not contain impurities.

[0028] The frame 101 is provided with several clamps 1013 distributed along the height direction. The feed pipe 1021 is detachably clamped to the clamps 1013. Furthermore, the feed pipe 1021 is a rigid pipe structure. The feed pipe 1021 is clamped to the clamps 1013. In addition, the top of the slurry tank 202 is provided with a discharge port 2021. The feed pipe 1021 is connected to the discharge port 2021. When the slurry needs to be weighed, the feed pipe 1021 is taken out from the clamps 1013 and connected to the slurry tank 202 to transport the slurry to the weighing tank 102.

[0029] The frame 101 is also equipped with a three-way ball valve 6 connected to the discharge pipe 1022. The three-way ball valve 6 is equipped with a connecting pipe 601 connected to the top of the weighing tank 102 and a conveying pipe 602 for outputting slurry. Furthermore, the three-way ball valve 6 is connected to the discharge pipe 1022. The slurry in the weighing tank 102 is conveyed to the mixer through the discharge pipe 1022 and the three-way ball valve 6. When too much slurry is output from the discharge pipe 1022, the excess slurry can be conveyed to the weighing tank 102 through the connecting pipe 601 connected to the weighing tank 102 by the three-way ball valve 6, thereby preventing excess slurry from entering the mixer.

[0030] The frame 101 is provided with casters 1011 at the bottom for moving the frame 101, and a handle 1012 at the end of the frame 101 for pushing the frame 101 to move. Furthermore, the casters 1011 are located at the corners of the bottom of the frame 101. By pushing the handle 1012, the frame 101 can be moved, thereby allowing the weighing device to be moved to the desired position for weighing the slurry.

[0031] In addition, both the discharge pipe 1022 and the feed pipe 1021 are conveyed by a conveying pump.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0033] Although this document uses numerous reference numerals from the accompanying drawings—including first weighing body 1, frame 101, casters 1011, handle 1012, clamp 1013, weighing tank 102, feed pipe 1021, discharge pipe 1022, support lug 1023, second weighing body 2, platform scale 201, slurry tank 202, discharge port 2021, weighing module 3, weighing plate 301, weighing component 302, slurry filter 4, two-way ball valve 5, three-way ball valve 6, connecting pipe 601, and conveying pipe 602—the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A lithium battery slurry weighing device, characterized in that, The weighing system includes a first weighing body (1) and a second weighing body (2) that cooperate with each other. The first weighing body (1) includes a weighing bucket (102) and a weighing module (3) for weighing the weighing bucket (102). The second weighing body (2) includes a platform scale (201) that cooperates with the weighing module (3). A slurry bucket (202) is placed on the platform scale (201). The top of the weighing bucket (102) is provided with a feed pipe (1021) that can be connected to the slurry bucket (202). The bottom of the weighing bucket (102) is also provided with a discharge pipe (1022).

2. The lithium battery slurry weighing device according to claim 1, characterized in that, The weighing module (3) includes weighing plates (301) located on opposite sides of the weighing barrel (102), and weighing components (302) for weighing the weight of the weighing barrel (102) are provided on the weighing plates (301).

3. The lithium battery slurry weighing device according to claim 2, characterized in that, The outer wall of the weighing barrel (102) is provided with a support ear (1023), the support ear (1023) is located on opposite sides of the weighing barrel (102), and the support ear (1023) is placed on the weighing component (302).

4. A lithium battery slurry weighing device according to claim 2, characterized in that, The first weighing body (1) also includes a frame (101) for fixing the weighing plate (301), and the weighing bucket (102) is suspended in the frame (101).

5. A lithium battery slurry weighing device according to claim 4, characterized in that, The frame (101) is equipped with a slurry filter (4) and a two-way ball valve (5) connected to each other. The two-way ball valve (5) is connected to the top of the weighing tank (102), and the feed pipe (1021) is connected to the slurry filter (4).

6. A lithium battery slurry weighing device according to claim 4, characterized in that, The frame (101) is provided with several clamps (1013) distributed along the height direction, and the feed pipe (1021) is detachably clamped to the clamps (1013).

7. A lithium battery slurry weighing device according to claim 4, characterized in that, The frame (101) is also provided with a three-way ball valve (6) connected to the discharge pipe (1022). The three-way ball valve (6) is provided with a connecting pipe (601) connected to the top of the weighing bucket (102) and a conveying pipe (602) for outputting slurry.

8. A lithium battery slurry weighing device according to claim 1, characterized in that, The slurry tank (202) has a discharge port (2021) at the top, and the feed pipe (1021) is connected to the discharge port (2021).

9. A lithium battery slurry weighing device according to claim 4, characterized in that, The bottom of the frame (101) is provided with casters (1011) for moving the frame (101), and the end of the frame (101) is provided with handles (1012) for pushing the frame (101) to move.

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