A cylindrical battery on-line defective product screening device
Patent Information
- Application Number
- CN202521766677.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-19
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-08-19
AI Technical Summary
然而，对于检测出不合格的电池，仍需依靠人工或半自动手段进行分拣，不仅效率低、响应慢，还可能因反应不及时导致不良品继续流入后道工序，影响产品一致性和系统可靠性
1、自动化高效筛选，降低人工干预
Smart Images
Figure CN224687345U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automation for lithium-ion battery production, in particular to an on-line defective product screening device for cylindrical batteries. Background Art
[0002] With the continuous improvement of requirements for battery performance from new energy vehicles, energy storage systems and portable electronic devices, cylindrical lithium-ion batteries are widely used due to their stable structure, high energy density and high production maturity. In the production and manufacturing process, especially in the stage from cell forming to module assembly, each battery must be tested for key parameters such as internal resistance, voltage, sealing performance and other indicators to ensure that its electrical performance and safety performance meet the standards.
[0003] At present, most of the mainstream detection methods adopt online automatic detection systems for integrated testing, and the detection results are judged for qualification through industrial control systems. However, for detected unqualified batteries, sorting still relies on manual or semi-automatic means, which is not only low in efficiency and slow in response, but also may cause defective products to continue flowing into subsequent processes due to untimely response, affecting product consistency and system reliability.
[0004] Therefore, there is an urgent need for a screening device capable of rapid online response and automatic rejection of defective products. After being integrated with a detection system, it can realize accurate identification and separation of unqualified batteries, thereby ensuring that the production tact is not disturbed, and improving the overall production yield and safety management level. Content of the Utility Model
[0005] Aiming at the deficiencies existing in the prior art, the purpose of the utility model is to provide an on-line defective product screening device for cylindrical batteries, which has reasonable structural design, can discharge different defective products through different waste discharge ports for discharge and recycling management, and greatly improves screening efficiency.
[0006] In order to achieve the above purpose, the utility model is realized by the following technical solution: an on-line defective product screening device for cylindrical batteries, comprising a conveyor line and waste discharge tanks, wherein cylindrical batteries to be detected are placed on the conveyor line, a screening cylinder is arranged on one side of the conveyor line, the screening cylinder performs contact detection with the cylindrical batteries through a probe, the waste discharge tanks are arranged on the other side of the conveyor line, defective product recovery tanks are arranged below the waste discharge tanks, and a pushing module is arranged at the tail of the defective product recovery tanks.
[0007] Preferably, a plurality of probes are provided.
[0008] Preferably, a plurality of waste discharge tanks are provided, and different defective products are discharged through different waste discharge tanks.
[0009] The cylindrical battery of this invention is conveyed by a conveyor belt. When it passes through each inspection station, the unqualified products are recorded. When the defective products flow to the recycling station, the defective product screening cylinder quickly pushes the battery into the waste discharge tank to achieve the purpose of recycling.
[0010] The beneficial effects of this utility model are: 1. Automated and efficient screening, reducing manual intervention. Based on the information recorded at the previous inspection station, the entire process of "identification-location-rejection" of defective products is automated, eliminating the need for manual judgment and sorting. The screening speed is synchronized with the conveyor line cycle (up to tens to hundreds of batteries per minute), greatly improving production line efficiency.
[0011] 2. Precise positioning and rapid response The screening cylinder 4, in conjunction with the probe 5, has a position confirmation function to ensure that only the target defective products are pushed, avoiding accidental rejection; the cylinder's action response is rapid (millisecond level), which can adapt to high-speed conveyor line scenarios and prevent missed screening or multiple screenings.
[0012] 3. Multi-specification compatibility and classified recycling Multiple waste discharge tanks 2 can be used to identify different recycling paths based on the type of defect (such as excessive internal resistance, damaged appearance, abnormal voltage, etc.), which facilitates subsequent defective product analysis and resource utilization. The conveyor line 1 and the stroke of the screening cylinder can be adjusted according to the battery diameter (such as cylindrical or square columnar) to adapt to the production of multiple battery models.
[0013] 4. Simple and reliable structure, low maintenance cost It mainly consists of mechanical structures such as conveyor lines, cylinders, and waste discharge troughs. It has no complex sensors or control systems and has a low failure rate. The screening cylinder and pusher module are standardized components, which are easy to maintain and replace, making it suitable for long-term continuous production scenarios. Attached Figure Description
[0014] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments; Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation
[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0016] Reference Figure 1The specific embodiment adopts the following technical solution: a defective product screening device on a columnar battery line, including a conveyor line 1 and a waste discharge trough 2. A columnar battery 3 to be tested is placed on the conveyor line 1. A screening cylinder 4 is set on one side of the conveyor line 1. The screening cylinder 4 contacts the columnar battery for detection through a probe 5. A waste discharge trough 2 is set on the other side of the conveyor line 1. A defective product recycling trough 6 is set below the waste discharge trough 2. A pusher module 7 is set at the tail of the defective product recycling trough 6.
[0017] It is worth noting that multiple probes 5 are provided.
[0018] In addition, multiple waste discharge troughs 2 are provided, and different defective products are discharged into different waste discharge troughs.
[0019] The working principle of this specific implementation is as follows: The cylindrical battery 3 passes through each inspection station sequentially along the conveyor line 1. The information of the defective battery is recorded by the system in real time and associated with its position on the conveyor line. When the recorded defective battery flows to the screening station, the system triggers the screening cylinder 4 to act. The cylinder drives the probe 5 (or push rod structure, the probe can also be used for position detection and confirmation) to contact the battery, ensuring that the target battery is accurately aligned. The screening cylinder 4 quickly pushes the defective battery, causing it to leave the conveyor line 1 and enter the corresponding waste discharge tank 2 (multiple waste discharge tanks can be used for recycling according to defect type), and finally falls into the defective product recycling tank 6 below. The pushing module 7 at the end of the recycling tank (such as a screw conveyor or pneumatic push rod) periodically pushes out the accumulated defective products to avoid blockage.
[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A defective product screening device for cylindrical battery production lines, characterized in that, The system includes a conveyor line (1) and a waste discharge trough (2). A cylindrical battery (3) to be tested is placed on the conveyor line (1). A screening cylinder (4) is set on one side of the conveyor line (1). The screening cylinder (4) contacts the cylindrical battery through a probe (5) for testing. A waste discharge trough (2) is set on the other side of the conveyor line (1). A defective product recycling trough (6) is set below the waste discharge trough (2). A pusher module (7) is set at the tail of the defective product recycling trough (6).
2. The defective product screening device for columnar batteries according to claim 1, characterized in that, The probe (5) is provided in multiple ways.
3. The defective product screening device for columnar batteries according to claim 1, characterized in that, Multiple waste discharge troughs (2) are provided.