Battery positive and negative electrode visual detection screening mechanism
By using recessed card holders and stepper motor-driven circulating conveyor belts in the battery testing equipment, the problems of unstable battery transport and complex screening structures were solved, achieving high efficiency and accuracy in battery testing and stable operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN FUYUAN AUTOMATION TECH CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-07-07
AI Technical Summary
Existing cylindrical battery appearance inspection equipment cannot guarantee stable battery transport, and its complex screening structure leads to inaccurate testing and unstable equipment operation.
Multiple recessed holders are set on a circulating conveyor belt, combined with stepper motor drive, to ensure stable delivery of batteries one by one, and precise screening is achieved through detection camera and telescopic push rod, simplifying the screening structure.
It improves the accuracy and efficiency of testing, ensures stable operation of equipment over a long period of time, simplifies equipment setup, and enhances operational efficiency.
Smart Images

Figure CN224463231U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of battery electrolyte addition equipment, and more specifically, to a visual inspection and screening mechanism for the positive and negative electrodes of batteries. Background Technology
[0002] Cylindrical batteries are the most commonly used type of battery in daily life. In my country, dry cell batteries are mainly classified into four sizes based on their dimensions: No. 1, No. 2, No. 5, and No. 7 batteries. No. 5 or No. 7 batteries are frequently used to power electronic devices such as remote controls, wireless mice, and alarm clocks.
[0003] Cylindrical batteries undergo production processes such as liquid injection, formation activation, and charging and discharging. If there are defects in the appearance of cylindrical batteries, their performance may be impaired, and there may even be safety hazards. Therefore, it is necessary to conduct appearance inspection on cylindrical batteries after production is completed.
[0004] For example, in the patent document CN202411083226.2, entitled "An Appearance Inspection Device for Cylindrical Batteries", the disclosed mechanism includes a frame, a first camera, a second camera, and a screening component. The frame is equipped with a conveyor for transporting and rotating the batteries. The first camera is located on one side of the output component and includes several first detection cameras, with the shooting ends of the first detection cameras facing the conveyor. There are two second cameras, which are respectively located on both sides of the frame. The second camera also includes a second detection camera, with the shooting ends of the second detection camera facing the output component. The screening component is located on one side of the frame and is used to screen out unqualified batteries.
[0005] Although the above-mentioned equipment can simultaneously perform visual inspection of the positive and negative terminals of cylindrical batteries and push away unqualified batteries, its conveyor cannot guarantee that the batteries are transported forward one by one stably. There is a risk that the batteries will shake and shift on the rollers, which can easily lead to inaccurate inspection. In addition, the design of the screening component is relatively complex and the setup is relatively troublesome, leaving considerable room for optimization. Utility Model Content
[0006] To address the issues that current cylindrical battery appearance inspection equipment on the market cannot guarantee the stable forward transport of batteries one by one, has a relatively complex screening structure, cannot guarantee long-term stable operation, and is cumbersome to set up, we provide a battery positive and negative electrode visual inspection and screening mechanism.
[0007] A battery positive and negative electrode visual inspection and screening mechanism includes a battery conveying assembly, which includes a circulating conveyor belt with multiple recessed seats. A battery feeding assembly, an inspection camera, and a screening assembly are arranged sequentially from front to back on the circulating conveyor belt. The battery feeding assembly includes a discharge guide chute, the outlet of which is located above the recessed seats at the upper front end of the circulating conveyor belt. The inspection camera is symmetrically arranged on both sides of the circulating conveyor belt. The screening assembly includes a telescopic push rod.
[0008] Furthermore, the circulating conveyor belt includes an annular chain, a recessed bracket is mounted on the annular chain, and the annular chain is connected to a stepper motor via a drive gear.
[0009] Furthermore, the recessed holder is laterally fitted with the cylindrical battery, the recess width of the recessed holder is greater than the diameter of the cylindrical battery, and the positive and negative ends of the cylindrical battery protrude from the two sides of the recessed holder.
[0010] Furthermore, a battery output slot is provided at the upper end of the circulating conveyor belt. The battery output slot includes a base plate located below both sides of the recessed card seat, and a top cover is provided above the base plate corresponding to the diameter of the cylindrical battery.
[0011] Furthermore, the recessed card holder has a forward-inclined surface at the top of the recessed front end.
[0012] Furthermore, the battery feeding assembly also includes a feeding guide chute, a pusher roller, and an ascending track connected in sequence upstream of the discharge guide chute, with the discharge guide chute vertically downwards at the front end of the circulating conveyor belt.
[0013] Furthermore, limit baffles are provided on both sides below the outlet of the discharge guide chute.
[0014] Furthermore, a ring-shaped fill light is provided in front of the detection camera, and the ring-shaped fill light and the detection camera are located on the same central axis.
[0015] Furthermore, a downwardly inclined defective product collection trough is provided on the opposite side of the telescopic push rod corresponding to the circulating conveyor belt.
[0016] Furthermore, a battery sensor is provided above the front end of the defective product collection tank, and the battery sensor is electrically connected to the circulating conveyor belt.
[0017] The advantages of this utility model are:
[0018] 1. The conveyor belt has multiple recessed slots, which can stably transfer batteries one by one, helping to improve the accuracy and efficiency of detection and screening.
[0019] 2. Battery selection is achieved using a telescopic push rod, which is convenient to set up and has high operating efficiency.
[0020] 3. The defective product collection trough can collect the defective batteries pushed out by the telescopic push rod, making them easy to recycle. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of a visual inspection and screening mechanism for the positive and negative electrodes of a battery.
[0023] Figure 2 This is a schematic diagram of the battery delivery assembly.
[0024] Figure 3 A detailed structural diagram of the recessed card holder;
[0025] Figure 4 This is a detailed structural diagram of the outlet of the discharge guide chute;
[0026] Figure 5 This is a front view of the battery output slot.
[0027] Figure 6 A schematic diagram of the structure of the testing camera and telescopic push rod.
[0028] Attached image labels:
[0029] 1. Battery conveying assembly; 101. Circulating conveyor belt; 102. Drive gear; 103. Stepper motor; 2. Battery feeding assembly; 201. Discharge guide chute; 3. Detection camera; 301. Ring supplement light; 4. Screening assembly; 401. Telescopic push rod; 402. Defective product collection chute; 403. Battery sensor; 5. Recessed bracket; 501. Forward inclined surface; 6. Battery output chute; 601. Base plate; 602. Top cover; 7. Limiting baffle; 8. Cylindrical battery. Detailed Implementation
[0030] To address the issues that current cylindrical battery appearance inspection equipment on the market cannot guarantee the stable forward transport of batteries one by one, has a relatively complex screening structure, cannot guarantee long-term stable operation, and is cumbersome to set up, we provide a battery positive and negative electrode visual inspection and screening mechanism.
[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0032] It should be noted that the terms such as "inner", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as part of the scope of implementation of this utility model, as stated above.
[0033] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.
[0034] like Figure 1-6 As shown, this embodiment provides a battery positive and negative electrode visual inspection and screening mechanism, including a battery conveying assembly 1. The battery conveying assembly 1 includes a circulating conveyor belt 101, on which a plurality of recessed brackets 5 are provided. A battery feeding assembly 2, an inspection camera 3 and a screening assembly 4 are arranged sequentially from front to back on the circulating conveyor belt 101. The battery feeding assembly 2 includes a discharge guide trough 201, the outlet of which is located above the recessed brackets 5 at the upper front end of the circulating conveyor belt 101. The inspection camera 3 is symmetrically arranged on both sides of the circulating conveyor belt 101. The screening assembly 4 includes a telescopic push rod 5.
[0035] During equipment operation, cylindrical batteries 8 are first placed one by one into the discharge guide trough 201. Then, the cylindrical batteries 8 fall through the outlet of the discharge guide trough 201 into the recessed holder 5, where they are held and conveyed forward. Subsequently, the cylindrical batteries 8 reach the inspection camera 3, where the positive and negative terminals of the batteries are visually inspected. Visual inspection can be achieved manually or through image analysis by industrial control equipment, which is common knowledge in this field and will not be elaborated here. After visual inspection, the cylindrical batteries 8 continue forward to the telescopic push rod 5. If the cylindrical battery 8 is defective, the telescopic push rod 5 extends forward, pushing it away to complete the screening. Qualified cylindrical batteries 8 continue to be conveyed forward to the end of the circulating conveyor belt 101 and output to the next station.
[0036] The circulating conveyor belt 101 includes an annular chain, and a recessed bracket 5 is mounted on the annular chain. The annular chain is connected to a stepper motor 103 via a drive gear 102. The stepper drive mechanism ensures that the cylindrical batteries 8 are conveyed forward one by one to complete the inspection and screening, with high positioning accuracy.
[0037] The recessed holder 5 is laterally fitted with the cylindrical battery 8. The width of the recessed holder 5 is greater than the diameter of the cylindrical battery 8, and the positive and negative terminals of the cylindrical battery 8 protrude from the two sides of the recessed holder 5. The larger recess width of the recessed holder 5 can stably hold the cylindrical battery 8, preventing the cylindrical battery 8 from shaking or shifting during transportation and thus failing to be detected. The design that the lateral width of the recessed holder 5 is smaller than the distance between the positive and negative terminals of the cylindrical battery 8 allows the positive and negative terminals of the battery to be fully exposed under the lens, avoiding interference from the recessed holder 5 with visual inspection.
[0038] A battery output slot 6 is provided at the upper end of the circulating conveyor belt 101. The battery output slot 6 includes a base plate 601 disposed below both sides of the recessed bracket 5, and a top cover 602 is provided above the base plate 601 corresponding to the diameter of the cylindrical battery 8. The battery output slot 6 can cover the cylindrical battery 8 after it reaches the end of the circulating conveyor belt 101, so that it separates from the recessed bracket 5 and outputs the cylindrical battery 8 one by one, which is convenient for transporting the cylindrical battery 8 to the downstream workstation for processing.
[0039] The recessed card holder 5 has a forward inclined surface 501 at the top of the recessed front end. The forward inclined surface 501 can guide the cylindrical battery 8 into the battery output slot 6 when the recessed card holder 5 runs to the end of the circulating conveyor belt 101, thus avoiding jamming.
[0040] The battery feeding assembly 2 also includes a feeding guide 202, a push roller 203, and an ascending track 204 connected sequentially upstream of the discharge guide 201. The discharge guide 201 is vertically positioned at the front end of the circulating conveyor belt 101. In this embodiment, a battery holder is provided on the side of the push roller 203, which can transport the cylindrical batteries 8 one by one along the ascending track 204 to the top of the discharge guide 201. When the empty recessed holder 5 reaches the bottom of the discharge guide 201, the cylindrical batteries 8 will naturally fall into the recessed holder 5 under the action of gravity, making the feeding fast and accurate.
[0041] Limiting baffles 7 are provided on both sides below the outlet of the discharge guide trough 201. The limiting baffles 7 can prevent the cylindrical battery 8 from shaking and shifting when it falls into the recessed holder 5, ensuring that the cylindrical battery 8 is accurately placed in the middle of the recessed holder 5.
[0042] A ring-shaped supplementary light 301 is provided in front of the detection camera 3, and the ring-shaped supplementary light 301 and the detection camera 3 are located on the same central axis. The ring-shaped supplementary light 301 can improve the ambient brightness on both sides of the circulating conveyor belt 101, ensuring that the detection camera 3 can fully capture images of the positive and negative electrodes at both ends of the battery.
[0043] A downward-sloping defective product collection trough 402 is provided on the opposite side of the telescopic push rod 401 corresponding to the circulating conveyor belt 101. A battery sensor 403 is provided above the front end of the defective product collection trough 402, and the battery sensor 403 is electrically connected to the circulating conveyor belt 101. Defective batteries pushed out by the telescopic push rod 401 are collected in the defective product collection trough 402 for convenient unified recycling and disposal by staff. The battery sensor 403 can be a commonly used photoelectric switch to prevent the equipment from continuing to operate and causing jamming malfunctions when the defective product collection trough 402 is full of defective batteries.
[0044] The above description is a further detailed explanation of the present utility model in conjunction with specific preferred embodiments. It should not be assumed that the specific implementation of the present utility model is limited to these descriptions. All equivalent changes and modifications made within the scope of this application should still fall within the scope of the present utility model.
Claims
1. A visual inspection and screening mechanism for positive and negative electrodes of a battery, characterized in that, The device includes a battery conveying assembly, which includes a circulating conveyor belt with multiple recessed brackets. A battery feeding assembly, a detection camera, and a screening assembly are arranged sequentially from front to back on the circulating conveyor belt. The battery feeding assembly includes a discharge guide chute, the outlet of which is located above the recessed brackets at the upper front end of the circulating conveyor belt. The detection camera is symmetrically arranged on both sides of the circulating conveyor belt. The screening assembly includes a telescopic push rod.
2. The battery positive and negative electrode visual inspection and screening mechanism according to claim 1, characterized in that, The circulating conveyor belt includes an annular chain, a recessed bracket is mounted on the annular chain, and a stepper motor is connected to the annular chain via a drive gear.
3. The battery positive and negative electrode visual inspection and screening mechanism according to claim 1, characterized in that, The recessed mounting bracket is laterally fitted with a cylindrical battery. The width of the recessed mounting bracket is greater than the diameter of the cylindrical battery, and the positive and negative terminals of the cylindrical battery protrude from the two sides of the recessed mounting bracket.
4. The battery positive and negative electrode visual inspection and screening mechanism according to claim 3, characterized in that, The upper end of the circulating conveyor belt is provided with a battery output slot, which includes a base plate located below both sides of the recessed card seat, and a top cover is provided above the base plate corresponding to the diameter of the cylindrical battery.
5. The battery positive and negative electrode visual inspection and screening mechanism according to claim 4, characterized in that, The recessed card holder has a forward-sloping surface at the top of the recessed front end.
6. The battery positive and negative electrode visual inspection and screening mechanism according to claim 1, characterized in that, The battery feeding assembly also includes a feeding guide chute, a pusher roller, and an ascending track connected in sequence upstream of the discharge guide chute. The discharge guide chute is vertically downward and located at the front end of the circulating conveyor belt.
7. The battery positive and negative electrode visual inspection and screening mechanism according to claim 6, characterized in that, Limiting baffles are provided on both sides below the outlet of the discharge guide chute.
8. The battery positive and negative electrode visual inspection and screening mechanism according to claim 1, characterized in that, A ring light is provided in front of the detection camera, and the ring light and the detection camera are located on the same central axis.
9. The battery positive and negative electrode visual inspection and screening mechanism according to claim 1, characterized in that, The telescopic push rod is provided with a downwardly inclined defective product collection trough on the opposite side of the corresponding circulating conveyor belt.
10. The battery positive and negative electrode visual inspection and screening mechanism according to claim 9, characterized in that, A battery sensor is installed above the front end of the defective product collection tank, and the battery sensor is electrically connected to the circulating conveyor belt.