Square battery cell OCV sorting machine with code scanning test function

By designing an automated square cell OCV sorting machine, the problems of low efficiency and data errors in lithium battery cell production were solved, realizing automated testing and barcode scanning of cells, and improving production efficiency and product quality.

CN223530899UActive Publication Date: 2025-11-11SHENZHEN ZHONGMEI CHUANGLI IND CO LTD
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Patent Information

Application Number
CN202422976595.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2025-11-11
Estimated Expiration
2034-12-04

AI Technical Summary

Technical Problem

In the existing lithium battery cell production process, the production efficiency is low and there is a risk of measurement data errors. In particular, manual intervention in the OCV testing and barcode scanning process of prismatic cells seriously affects efficiency and accuracy.

Method used

A square battery cell OCV sorting machine with barcode scanning testing function was designed, including a conveying and sorting mechanism, a placement mechanism, a barcode scanner and a robotic arm, to realize automated testing and barcode scanning of battery cells. The machine is combined with an industrial control computer for data binding and storage, thereby improving the degree of automation and testing accuracy.

Benefits of technology

It enables automated sorting and data binding of battery cells, improving production efficiency, reducing the risk of manual intervention, ensuring the accuracy of test parameters and the performance quality of pack products, and reducing production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a square battery cell OCV sorting machine with a code scanning test function, which belongs to the technical field of battery cell test, aims at solving the problems of low production efficiency and error risk of measurement data, and comprises a mounting table, the placing mechanism is arranged on the left side of the conveying and sorting mechanism and arranged in the protection frame, and a display screen is fixedly installed on the front portion of the protection frame. By means of the industrial personal computer, the conveying and sorting mechanism, the placing mechanism and the like, at most nine groups of grading pairing numbers are arranged at one time, the quality of pack batteries and the consistency of the performance of paired battery cells are improved, the sorting technological process is automatically controlled, the operation is simple and convenient, manual participation is abandoned, the precision of test parameters and the reliability of the pairing process are guaranteed, and the production efficiency is improved. Meanwhile, the automatic packaging machine is high in automation degree, simple and convenient to operate, and capable of effectively improving the production efficiency and reducing the production cost.
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Description

Technical Field

[0001] This utility model belongs to the field of battery cell testing technology, specifically relating to a square battery cell OCV sorting machine with barcode scanning testing function. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloy as the positive / negative electrode material and a non-aqueous electrolyte solution. The lithium metal battery was first proposed and studied by Gibert N. Lewis in 1912. Lithium-ion batteries are divided into single lithium-ion batteries and lithium-ion battery packs. Regardless of the type, the battery cell is an essential part. During the production process, the battery cells need to be sorted, which requires a lithium-ion battery sorting machine to sort the battery cells.

[0003] During the production of prismatic battery cells, an OCV (open circuit voltage) test is required. Based on the test results, defective cells are rejected, and qualified cells are categorized and stored. To facilitate traceability, the cell information is scanned and recorded, and the results are correlated with the test results for archiving. The manual nature of these processes significantly impacts production efficiency and is also susceptible to errors in measurement data due to human error.

[0004] Therefore, there is a need for a square battery cell OCV sorting machine with barcode scanning testing function to solve the problems of low production efficiency and the risk of measurement data errors in the existing technology. Utility Model Content

[0005] The purpose of this invention is to provide a square battery cell OCV sorting machine with barcode scanning testing function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a square battery cell OCV sorting machine with barcode scanning testing function, comprising a mounting platform, support legs fixedly installed at the four corners of the bottom of the mounting platform, and casters fixedly installed at the bottom of the support legs, a protective frame fixedly installed on the upper part of the mounting platform, a conveying and sorting mechanism provided on the upper part of the mounting platform, a placement mechanism provided on the left side of the conveying and sorting mechanism and located inside the protective frame, a display screen fixedly installed at the front of the protective frame, an industrial control computer connected to the display screen and located at the front of the protective frame, square battery cells being disposed on the conveying and sorting mechanism and the placement mechanism, the conveying and sorting mechanism being used for barcode scanning testing of the square battery cells, and the placement mechanism being used for storing the square battery cells.

[0007] The conveying and sorting mechanism includes a conveying channel, a drive motor, a test position, a barcode scanner, and a second transfer robot. The conveying channel is fixedly installed on the top of the mounting platform and located on the right side of the placement mechanism. The drive motor is installed on the conveying channel to drive it. The test position is located on the conveying channel for testing square battery cells. The barcode scanner is located behind the test position and connected to the conveying channel for scanning the square battery cells. The second transfer robot is located behind the conveying channel and connected to the placement mechanism for conveying the square battery cells.

[0008] It should be noted in the solution that the test position includes a support column, a first transplanting robot, and a test movable cylinder. The support column is fixedly installed on the left side of the conveying channel, the first transplanting robot is located on the conveying channel, the test movable cylinder is installed on the support column, a rotating handle is installed at the top of the support column for adjusting the test movable cylinder, a slide rail is fixedly connected to the upper part of the test movable cylinder, a connecting plate is slidably installed on the upper part of the slide rail, and a test probe is fixedly connected to the bottom right side of the connecting plate.

[0009] It is worth noting that a rotating shaft is fixedly connected to the barcode scanner, an adjusting block is rotatably installed at the front end of the rotating shaft, a fixed slide rod is slidably installed on the adjusting block, and the fixed slide rod is fixedly connected to the left side of the conveying channel and located behind the test position.

[0010] Furthermore, it should be noted that the second transplanting robot arm is slidably mounted with a linear guide rail, which is fixedly connected to the top of the mounting platform.

[0011] In a preferred embodiment, the placement mechanism includes a mounting frame, a guide rail, a limiting rod, a movable block, and a material trough. The mounting frame is fixedly installed on the top of the mounting platform and located on the right side of the conveying and sorting mechanism. A guide rail is fixedly installed on the mounting frame. A limiting rod is fixedly connected to the outside of the guide rail on the mounting frame. A movable block is slidably installed on the limiting rod. A material trough is provided on the mounting frame at the lower part of the movable block. The material trough is adjustable by the guide rail, the limiting rod, and the movable block.

[0012] Compared with the prior art, the square battery cell OCV sorting machine with barcode scanning test function provided by this utility model has at least the following beneficial effects:

[0013] (1) Through the industrial control computer, conveying sorting mechanism and placement mechanism, the maximum number of batches and pairs can be up to 9 at a time, which improves the consistency of pack battery quality and paired cell performance. The sorting process is automatically controlled, easy to operate, and eliminates manual participation, ensuring the accuracy of test parameters and the reliability of the pairing process, improving and guaranteeing the performance quality of pack products. At the same time, it has a high degree of automation, simple operation, and easy operation, which can effectively improve production efficiency and reduce production costs.

[0014] (2) By setting support legs at the bottom of the mounting platform and using movable wheels, it is easy to move and install the whole device, thereby improving the overall adjustability of the device and its stability after installation, thus improving the practicality of the device. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the conveying and sorting mechanism of this utility model;

[0018] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Mounting platform; 101. Protective frame; 2. Support leg; 201. Caster wheel; 3. Display screen; 301. Industrial computer; 4. Conveying and sorting mechanism; 401. Conveying channel; 402. Drive motor; 403. Test position; 4031. Support column; 4032. First transplanting robot; 4033. Test cylinder; 4034. Slide rail; 4035. Connecting plate; 4036. Rotating handle; 4037. Test probe; 404. Barcode scanner; 4041. Rotating shaft; 4042. Adjusting block; 4043. Fixed slide bar; 405. Second transplanting robot; 4051. Linear guide rail; 5. Placement mechanism; 501. Mounting frame; 502. Guide rail; 503. Limiting rod; 504. Movable block; 505. Material trough; 6. Square battery cell. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments.

[0021] Please see Figure 1-4 This utility model provides a square battery cell OCV sorting machine with barcode scanning test function, including a mounting platform 1. Support legs 2 are fixedly installed at the four corners of the bottom of the mounting platform 1. The support legs 2 are fixedly installed with casters 201 at the bottom of the mounting platform 1. A protective frame 101 is fixedly installed on the upper part of the mounting platform 1. A conveying and sorting mechanism 4 is provided on the upper part of the mounting platform 1. A placement mechanism 5 is provided on the left side of the conveying and sorting mechanism 4 and is located inside the protective frame 101. A display screen 3 is fixedly installed on the front of the protective frame 101. An industrial control computer 301 is connected to the display screen 3 and is located on the front of the protective frame 101. Square battery cells 6 are provided on the conveying and sorting mechanism 4 and the placement mechanism 5. The conveying and sorting mechanism 4 is used to perform barcode scanning test on the square battery cells 6, and the placement mechanism 5 is used to store the square battery cells 6.

[0022] The battery is manually placed into the conveyor belt according to the prescribed method. The conveyor belt transports the battery to the ejection station. The ejection cylinder pushes the battery out to the testing conveyor belt. The battery automatically flows into the testing station. After the test is completed, the battery is automatically scanned online. After the cell test data and scanned information are bound, they automatically flow into the module transport mechanism. The module accurately transports the battery to the set corresponding position to complete the sorting.

[0023] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that the conveying and sorting mechanism 4 includes a conveying channel 401, a drive motor 402, a test position 403, a barcode scanner 404, and a second transfer robot 405. The conveying channel 401 is fixedly installed on the top of the mounting platform 1 and located on the right side of the placement mechanism 5. The drive motor 402 is installed on the conveying channel 401 to drive it. The test position 403 is located on the conveying channel 401 for testing the square battery cell 6. The barcode scanner 404 is located behind the test position 403 and connected to the conveying channel 401 for scanning the square battery cell 6. The second transfer robot 405 is located behind the conveying channel 401 and connected to the placement mechanism 5 for conveying the square battery cell 6.

[0024] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that the test position 403 includes a support column 4031, a first transplanting robot 4032, and a test movable cylinder 4033. The support column 4031 is fixedly installed on the left side of the conveying channel 401. The first transplanting robot 4032 is located on the conveying channel 401. The test movable cylinder 4033 is installed on the support column 4031. A rotating handle 4036 is installed at the top of the support column 4031 for adjusting the test movable cylinder 4033. A slide rail 4034 is fixedly connected to the upper part of the test movable cylinder 4033. A connecting plate 4035 is slidably installed on the upper part of the slide rail 4034. A test needle 4037 is fixedly connected to the bottom right side of the connecting plate 4035.

[0025] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that a rotating shaft 4041 is fixedly connected to the barcode scanner 404. An adjusting block 4042 is rotatably installed at the front end of the rotating shaft 4041. A fixed slide rod 4043 is slidably installed on the adjusting block 4042. The fixed slide rod 4043 is fixedly connected to the left side of the conveying channel 401 and located behind the test position 403.

[0026] Further as Figure 2 , Figure 3 and Figure 4As shown, it is worth noting that a linear guide rail 4051 is slidably mounted on the second transplanting robot 405, and the linear guide rail 4051 is fixedly connected to the top of the mounting platform 1.

[0027] In use, the drive motor 402 operates to transport the square battery cell 6, which is pushed by a hydraulic rod, along the conveying channel 401. When the square battery cell 6 is transported to the test position 403, the test cylinder 4033 operates, cooperating with the support column 4031, the first transfer manipulator 4032, the slide rail 4034, the connecting plate 4035, and the rotating handle 4036 to adjust the height of the test probe 4037. This adjusts the test probe 4037 to match the electrode on the upper part of the square battery cell 6 for circuit testing, improving its testing capability. After the test is completed, the first... The transplanting robot 4032 releases the square battery cell 6, allowing it to be conveyed again through the conveying channel 401. The cell is then scanned by the barcode scanner 404, and the scanned data is recorded. Simultaneously, the angle of the barcode scanner 404 is adjusted via the rotating shaft 4041, adjusting block 4042, and fixed slide bar 4043, further enhancing its adjustability and screening efficiency. The screened square battery cell 6 then runs along the linear guide rail 4051, cooperating with the second transplanting robot 405 to be conveyed to the corresponding placement mechanism 5 for placement, thus improving the automation capability of the device.

[0028] Further as Figure 1 and Figure 2 As shown, it is worth noting that the placement mechanism 5 includes a mounting frame 501, a guide rail 502, a limiting rod 503, a movable block 504, and a material trough 505. The mounting frame 501 is fixedly installed on the top of the mounting platform 1 and located on the right side of the conveying and sorting mechanism 4. The guide rail 502 is fixedly installed on the mounting frame 501. The limiting rod 503 is fixedly connected to the outside of the guide rail 502 on the mounting frame 501. The movable block 504 is slidably installed on the limiting rod 503. The material trough 505 is provided on the mounting frame 501 at the lower part of the movable block 504. The material trough 505 is adjusted by the guide rail 502, the limiting rod 503, and the movable block 504.

[0029] In use, the guide rail 502, in conjunction with the limit rod 503, causes the movable block 504 to slide, thereby adjusting the size of the material trough 505 to match and adjust it according to the square battery cells 6 selected for testing, thus improving its adjustability.

[0030] This solution has the following working process: When this device is in use, by adjusting the support leg 2, the device as a whole can be supported and positioned, which makes it easy to move and adjust the whole device by means of the moving wheel 201, thereby improving the convenience of device adjustment. At the same time, the square battery cell 6 is transported, tested and scanned by the conveying and sorting mechanism 4. After the test data and scanning information of the square battery cell 6 are bound, they automatically flow into the placement mechanism 5 through the conveying and sorting mechanism 4, and are accurately transported by the module to the set corresponding position to complete the sorting, thereby improving the automated testing and screening capability of the device.

[0031] In summary: Through the industrial control computer 301, the conveying and sorting mechanism 4, and the placement mechanism 5, a maximum of 9 groups can be sorted and paired at one time, improving the consistency of pack battery quality and paired cell performance. The sorting process is automatically controlled, easy to operate, and eliminates manual intervention, ensuring the accuracy of test parameters and the reliability of the pairing process, thereby improving and guaranteeing the performance and quality of pack products. At the same time, its high degree of automation and simple operation can effectively improve production efficiency and reduce production costs. The support legs 2 at the bottom of the mounting platform 1, together with the moving wheels 201, facilitate the movement and installation of the entire device, thereby improving the overall adjustability of the device and its stability after installation, thus improving the practicality of the device.

Claims

1. A square battery cell OCV sorting machine with barcode scanning testing function, comprising a mounting platform (1), characterized in that: Support legs (2) are fixedly installed at the four corners of the bottom of the mounting platform (1). The support legs (2) are fixedly installed with casters (201) at the bottom of the mounting platform (1). A protective frame (101) is fixedly installed on the upper part of the mounting platform (1). A conveying and sorting mechanism (4) is provided on the upper part of the mounting platform (1). A placement mechanism (5) is provided on the left side of the conveying and sorting mechanism (4) and is located inside the protective frame (101). A display screen (3) is fixedly installed on the front of the protective frame (101). An industrial control computer (301) is connected to the display screen (3) and is located on the front of the protective frame (101). Square battery cells (6) are provided on the conveying and sorting mechanism (4) and the placement mechanism (5). The conveying and sorting mechanism (4) is used to scan the square battery cells (6) for testing. The placement mechanism (5) is used to store the square battery cells (6). The conveying and sorting mechanism (4) includes a conveying channel (401), a drive motor (402), a test position (403), a barcode scanner (404), and a second transfer robot (405). The conveying channel (401) is fixedly installed on the top of the mounting platform (1) and located on the right side of the placement mechanism (5). The drive motor (402) is installed on the conveying channel (401) to drive it. The test position (403) is located on the conveying channel (401) to test the square battery cell (6). The barcode scanner (404) is located behind the test position (403) and connected to the conveying channel (401) to scan the square battery cell (6). The second transfer robot (405) is located behind the conveying channel (401) and connected to the placement mechanism (5) to convey the square battery cell (6).

2. The square battery cell OCV sorting machine with barcode scanning testing function according to claim 1, characterized in that: The test position (403) includes a support column (4031), a first transplanting robot (4032), and a test cylinder (4033). The support column (4031) is fixedly installed on the left side of the conveying channel (401). The first transplanting robot (4032) is located on the conveying channel (401). The test cylinder (4033) is installed on the support column (4031). A rotating handle (4036) is installed at the top of the support column (4031) for adjusting the test cylinder (4033). A slide rail (4034) is fixedly connected to the upper part of the test cylinder (4033). A connecting plate (4035) is slidably installed on the upper part of the slide rail (4034). A test needle (4037) is fixedly connected to the bottom right side of the connecting plate (4035).

3. The square battery cell OCV sorting machine with barcode scanning testing function according to claim 2, characterized in that: A rotating shaft (4041) is fixedly connected to the barcode scanner (404). An adjusting block (4042) is rotatably installed at the front end of the rotating shaft (4041). A fixed slide rod (4043) is slidably installed on the adjusting block (4042). The fixed slide rod (4043) is fixedly connected to the left side of the conveying channel (401) and located behind the test position (403).

4. The square battery cell OCV sorting machine with barcode scanning testing function according to claim 3, characterized in that: A linear guide rail (4051) is slidably mounted on the second transplanting robot (405), and the linear guide rail (4051) is fixedly connected to the top of the mounting platform (1).

5. A square battery cell OCV sorting machine with barcode scanning testing function according to claim 4, characterized in that: The placement mechanism (5) includes a mounting frame (501), a guide rail (502), a limiting rod (503), a movable block (504), and a material trough (505). The mounting frame (501) is fixedly installed on the top of the mounting platform (1) and located on the right side of the conveying and sorting mechanism (4). The guide rail (502) is fixedly installed on the mounting frame (501). The limiting rod (503) is fixedly connected to the outside of the guide rail (502) on the mounting frame (501). The movable block (504) is slidably installed on the limiting rod (503). The material trough (505) is provided on the mounting frame (501) at the lower part of the movable block (504). The material trough (505) is adjusted by the guide rail (502), the limiting rod (503), and the movable block (504).