Automatic battery carbon rod defect detecting and removing device and control method thereof

Abstract

The invention belongs to the technical field of carbon rod production, and discloses an automatic battery carbon rod defect detecting and removing device, a steel plate is fixedly mounted on a frame body and is in contact with the bottoms of a plurality of rollers, a carbon rod can be placed on the steel plate between two adjacent rollers and can be conveyed from a feeding end to a discharging end, the plurality of rollers are connected with a driving mechanism, and the driving mechanism is connected with the driving mechanism. The tube chain machine is arranged above the steel plate and rolls under the resistance of the steel plate and drives the carbon rods to rotate, a camera is arranged above the tube chain machine and used for photographing the carbon rods conveyed to the tube chain machine so as to recognize defective parts, and an air blowing nozzle is arranged on one side of the tube chain machine and can blow off the carbon rods conveyed to the tube chain machine by outputting strong airflow. The invention further discloses a control method of the automatic battery carbon rod defect detecting and removing device, every time the carbon rods rotate by a certain angle, the camera shoots a picture, and the camera is triggered at a time to shoot a plurality of carbon rods at the same time. According to the invention, the automation, the detection precision and the rejection efficiency are improved, the problems of missing detection, overlapping, manual operation and the like are solved, and the efficiency of a production line and the product quality are greatly improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of carbon rod production, and particularly relates to an automatic battery carbon rod defect detection and rejection device and its control method. Background Art

[0002] As a key component of a battery, the quality of a battery carbon rod directly affects the performance, lifespan, and safety of the battery. However, in traditional production processes, there are many challenges in the quality control of battery carbon rods. Especially due to the limitations of manual inspection, it is unable to effectively meet the requirements of high production speed and high precision, resulting in defective products not being removed in a timely manner, thus affecting the overall quality of the battery.

[0003] Currently, although machine vision technology has been widely applied in the field of industrial inspection, there are still some problems in the defect detection of battery carbon rods. First of all, existing detection systems mostly use static shooting or local detection, and are unable to comprehensively capture the defects on the surface of the battery carbon rod. Due to the complex shape and surface state of the battery carbon rod, existing technologies may miss some minor defects when dealing with the all-round defect detection of the carbon rod, thus affecting the quality control of the product.

[0004] In addition, although there has been some progress in the improvement of automation and intelligence levels, many production lines still cannot completely avoid manual operations at present. Especially in the processes of defect rejection and packing, many production lines still rely on manual intervention, which not only reduces production efficiency but also increases the possibility of human errors. This manual dependence affects the stability and consistency of the production line, and it is impossible to ensure that every carbon rod can be accurately detected and processed.

[0005] At the same time, existing conveying systems and detection equipment are prone to problems such as carbon rod overlap, missed detection, and deviation when dealing with high-speed and large-volume production. Since the carbon rods cannot be effectively prevented from overlapping during the conveying process, the detection system cannot independently detect each carbon rod in a timely and accurate manner, increasing the risk of missed detection and thus affecting the qualification rate of the final product.

[0006] In summary, although there are currently some machine vision technologies applied to the detection of battery carbon rods, there are still problems such as insufficient all-round detection, low automation level, low production efficiency, and excessive manual intervention. These problems urgently need to be solved by more efficient and intelligent technical solutions to improve the automation level of the production line and the product quality. Summary of the Invention

[0007] The present invention provides an automatic battery carbon rod defect detection and rejection device to solve the existing technical problems.

[0008] To solve the above technical problems, the technical solution proposed by the present invention is as follows: An automatic battery carbon rod defect detection and rejection device, including a tube chain conveyor. The feeding end of the tube chain conveyor is sequentially connected with a rod aligning machine and a feeding conveyor belt. The discharging end of the tube chain conveyor is connected with a packing machine. The tube chain conveyor is provided with a frame body, a steel plate and a plurality of rollers. The plurality of rollers are arranged at intervals and are jointly rotatably installed on the frame body. The steel plate is fixedly installed on the frame body and contacts the bottoms of the plurality of rollers. Carbon rods can be placed on the steel plate between two adjacent rollers and can be conveyed from the feeding end to the discharging end. The plurality of rollers are connected with a driving mechanism and roll under the resistance of the steel plate to drive the carbon rods to rotate. A camera is arranged above the tube chain conveyor. The visual area of the camera is located on the tube chain conveyor and is used to take pictures of the carbon rods conveyed on the tube chain conveyor to identify defective parts. A blowing nozzle is arranged on one side of the tube chain conveyor. The air outlet end of the blowing nozzle faces the tube chain conveyor and can blow off the carbon rods conveyed on the tube chain conveyor by outputting strong air flow. The air inlet end of the blowing nozzle is connected with a blower through an air pipe.

[0009] As a further improvement of the above technical solution: A trigger switch is arranged on the tube chain conveyor. The trigger switch is located on the steel plate and is arranged at intervals with the plurality of rollers and can be triggered by the carbon rods conveyed on the tube chain conveyor.

[0010] An electromagnetic valve for controlling the on-off of air flow is arranged on the air pipe.

[0011] Anti-slip lines are arranged on the upper surface of the steel plate, and the anti-slip lines can contact the carbon rods conveyed on the tube chain conveyor.

[0012] A supplementary light is also arranged above the tube chain conveyor, and the light source of the supplementary light covers the visual area of the camera.

[0013] The distance between two adjacent rollers is greater than the diameter of the carbon rod.

[0014] A control method for an automatic battery carbon rod defect detection and rejection device. For each certain angle of rotation of the carbon rod, the camera takes a photo, and the camera triggers and takes pictures of multiple carbon rods simultaneously at one time.

[0015] The camera takes two groups of pictures per second.

[0016] If the trigger switch is not triggered or the trigger interval exceeds 60 ms, the tube chain conveyor will automatically stop and alarm.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Omnidirectional detection: The design of the tube chain conveyor through the cooperation of a plurality of rollers and the steel plate ensures that the carbon rods can rotate freely during the conveying process, ensuring that the camera can take accurate pictures of the carbon rods omnidirectionally and without dead angles, avoiding the problem of missed inspection; 2. High - efficiency defect elimination: The blowing nozzle can quickly blow out the detected defective carbon rods from the tube - chain conveyor through strong air flow, ensuring that the defective carbon rods are removed in time, avoiding affecting the quality of qualified carbon rods, and improving the elimination efficiency and accuracy. 3. Automated operation: Through the coordinated work of the rod - arranging machine, the feeding conveyor belt and the tube - chain conveyor, the automated transportation and defect elimination of carbon rods are realized, reducing manual intervention, lowering production costs and human errors, and enhancing production efficiency and consistency. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following - described drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of an automatic battery carbon - rod defect detection and elimination device.

[0020] Figure 2 It is a schematic side - view structure diagram of the tube - chain conveyor.

[0021] Legend Explanation: 100, carbon rod; 1, tube - chain conveyor; 11, feeding end; 12, discharging end; 13, frame; 14, steel plate; 15, roller; 2, rod - arranging machine; 3, feeding conveyor belt; 4, packing machine; 5, camera; 6, blowing nozzle; 61, air pipe; 62, solenoid valve; 7, trigger switch. Detailed Embodiments

[0022] To facilitate the understanding of the present invention, the following will describe the present invention more comprehensively and meticulously in combination with the specification drawings and preferred embodiments. However, the protection scope of the present invention is not limited to the following specific embodiments.

[0023] Unless otherwise defined, all the technical terms used hereinafter have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the protection scope of the present invention.

[0024] Unless otherwise specifically stated, all kinds of raw materials, reagents, instruments and equipment used in the present invention can be obtained through market purchase or can be prepared by existing methods.

[0025] Embodiment: As Figure 1 and Figure 2As shown in the figure, the automatic battery carbon rod defect detection and rejection device of this embodiment includes a tube chain machine 1. The feeding end 11 of the tube chain machine 1 is sequentially connected to a rod aligning machine 2 and a feeding conveyor belt 3. The discharging end 12 of the tube chain machine 1 is connected to a packing machine 4. The tube chain machine 1 is provided with a frame 13, a steel plate 14 and a plurality of rollers 15. The plurality of rollers 15 are arranged at intervals and are jointly rotatably installed on the frame 13. The steel plate 14 is fixedly installed on the frame 13 and contacts the bottoms of the plurality of rollers 15. Carbon rods 100 can be placed on the steel plate 15 between two adjacent rollers 15 and can convey the carbon rods 100 from the feeding end 11 to the discharging end 12. The plurality of rollers 15 are connected to a driving mechanism and roll under the resistance of the steel plate 14 to drive the carbon rods 100 to rotate. Above the tube chain machine 1, there is a camera 5. The visual area of the camera 5 is located on the tube chain machine 1 and is used to take pictures of the carbon rods 100 conveyed on the tube chain machine 1 to identify defective parts. On one side of the tube chain machine 1, there is a blowing nozzle 6. The air outlet end of the blowing nozzle 6 faces the tube chain machine 1 and can blow off the carbon rods 100 conveyed on the tube chain machine 1 by outputting strong air flow. The air inlet end of the blowing nozzle 6 is connected to a blower through an air pipe 61. The problem of possible overlap of the carbon rods 100 during the conveying process is effectively solved by the plurality of rollers 15, enabling the carbon rods 100 to pass through each link evenly and be smoothly conveyed to the discharging end 12, avoiding the risk of missed inspection. At the same time, the resistance provided by the steel plate 14 enables the carbon rods 100 to rotate freely, ensuring that the camera 5 can take comprehensive pictures of the carbon rods 100 from all angles, thus ensuring the dead - free and high - precision visual inspection. Secondly, the design of the blowing nozzle 6 is also a major highlight of this device. The blowing nozzle 6 can blow out the defective carbon rods 100 from the tube chain machine 1 through strong air flow, ensuring that the detected defective carbon rods 100 can be removed in time without interfering with other qualified carbon rods 100. The accuracy of air flow control and the efficient operation of the blowing nozzle 6 make the defective part rejection process faster and more accurate, greatly improving the production efficiency. In addition, the feeding end 11 of the tube chain machine 1 is connected to a rod aligning machine 2 and a feeding conveyor belt 3, forming an efficient automated production line, reducing manual intervention. Through the automated conveying and rejection process, the processing efficiency of the carbon rods 100 is further improved, and the production cost and manual error are reduced. Therefore, it can not only achieve efficient and accurate defect detection of the carbon rods 100, but also significantly improve the automation level of the production line, solving the problems of missed inspection, overlap and manual operation in the prior art.

[0026] In this embodiment, a trigger switch 7 is provided on the tube chain machine 1. The trigger switch 7 is located on the steel plate 14 and is arranged at intervals with the plurality of rollers 15 and can be triggered by the carbon rods 100 conveyed on the tube chain machine 1. The trigger switch 7 can accurately detect the position of the carbon rods 100. When the carbon rods 100 pass by, the trigger switch 7 is activated, ensuring that each carbon rod 100 can be accurately captured and processed. By being arranged at intervals with the plurality of rollers 15, the trigger switch 7 effectively improves the stability and accuracy of the detection process, avoiding omission or false triggering.

[0027] In this embodiment, a solenoid valve 62 for controlling the on-off of air flow is provided on the air pipe 61. The solenoid valve 62 can accurately control the on-off of air flow, ensuring that the air flow output by the air blowing nozzle 6 has accurate strength and timing. It can ensure that the carbon rod 100 is accurately removed during the conveying process, avoiding the situation of too strong or too weak air flow, and improving the efficiency and accuracy of the air blowing and removing operation.

[0028] In this embodiment, anti-slip lines are provided on the upper surface of the steel plate 14, and the anti-slip lines can contact the carbon rod 100 conveyed on the tube chain conveyor 1. The anti-slip lines can effectively enhance the contact friction between the carbon rod 100 and the steel plate 14, prevent the carbon rod 100 from sliding or shifting during the conveying process, and ensure its stable passage through the tube chain conveyor 1. This design improves the reliability of the conveying process and avoids errors caused by the sliding of the carbon rod 100.

[0029] In this embodiment, a supplementary light is further provided above the tube chain conveyor 1, and the light source of the supplementary light covers the visual area of the camera 5. The supplementary light can provide sufficient light source for the camera 5, ensuring that the defects of the carbon rod 100 can be clearly detected under different light environments, effectively solving the problem of poor shooting effect under low light conditions, and improving the accuracy and stability of visual detection.

[0030] In this embodiment, the distance between two adjacent rollers 15 is greater than the diameter of the carbon rod 100. It can ensure that the carbon rod 100 rolls under the resistance of the steel plate 14, facilitating the camera 5 to take pictures.

[0031] In this embodiment, for the control method of the automatic battery carbon rod defect detection and removal device, every time the carbon rod 100 rotates 90 degrees, the camera 5 takes a picture, and the camera 5 triggers and takes pictures of four carbon rods 100 at a time. Taking a picture every 90-degree rotation can ensure that each carbon rod can be accurately detected at different angles, thus avoiding omission. Taking pictures of four carbon rods at a time improves the image acquisition efficiency and reduces the waste of time, meeting the requirements of high-speed production. Each carbon rod is photographed at four angles (0°, 90°, 180°, 270°), which can effectively detect defects at different angles and ensure the comprehensiveness of detection.

[0032] In this embodiment, the camera 5 takes a group of pictures at an interval of three carbon rods 100, and takes two groups of pictures per second. Taking a group of pictures at an interval of three carbon rods ensures that no defects will be missed in a continuous production process. Taking two groups of pictures per second (a total of 8 pictures) greatly improves the frequency of image acquisition and can keep up with the rhythm of the carbon rods on the high-speed production line. Through reasonable interval arrangement, it ensures that the carbon rod defects can be detected and responded to in a short time.

[0033] In this embodiment, if the trigger switch 7 is not triggered or the trigger interval exceeds 60 ms, the tube chain conveyor 1 will automatically stop and alarm. By monitoring the trigger switch, it is possible to detect in real time whether the equipment is operating normally, preventing misoperations or failures during the production process. This ensures that the rejection device is triggered at the accurate time, preventing problems such as misrejection or missed rejection caused by equipment failures, and improving the accuracy and precision of rejection. Through the automatic stop and alarm functions, the safety during the production process is improved, and the damage of equipment or the production of unqualified products is avoided.

[0034] This device is applicable to the field of carbon rod production quality control, especially for the high-speed detection and precise rejection of surface defects of carbon rods. Through the high-speed image acquisition mechanism, when the carbon rod rotates to the trigger switch, photographing is started to ensure that 4 photos (0°, 90°, 180°, 270°) are taken during the rotation of each carbon rod, and 4 carbon rods are photographed simultaneously with a single trigger. 2 groups of photos are taken per second, a total of 8 photos, which are transmitted to the working condition machine in real time. The working condition machine analyzes the photos according to the defective product large model, and then triggers the rejection device for precise rejection. To ensure that the detection covers the continuous production process, the interval for photo acquisition is 3 carbon rods, and 2 groups are taken per second. In terms of precise rejection, the trigger switch operates according to the conveying position of the carbon rod to ensure the rejection accuracy. The system adopts position synchronization technology. Each time the tube chain conveyor runs one chain, the trigger switch records the position to ensure that the rejection error is ≤ ±1 carbon rod. If the trigger switch is not triggered or the trigger interval exceeds 60 ms, the system will automatically stop and alarm to avoid problems such as misrejection or missed rejection. Through efficient detection (8 photos per second, covering 4 carbon rods) and highly real-time control (the detection and rejection response time ≤ 60 ms), the device realizes high-precision defect detection and rejection on the high-speed production line, ensuring production continuity and product quality, and meeting the high-precision requirements of industrial automation production lines.

[0035] The trigger switch of this device ensures that when the tube chain conveyor runs one chain each time, it can accurately record the position of the carbon rod, thus ensuring that the rejection precision error does not exceed ±1 carbon rod. If the system detects an abnormality, the equipment will automatically stop and restart after manual reset, thus avoiding the impact of the failure on the entire production process.

[0036] Based on the position synchronization technology, the accuracy of rejection can reach over 99.9%, and the response time is also controlled within 60 milliseconds, meeting the requirements of the high-speed production line. This makes this device have important application value in the automated quality control of the carbon rod production line, and is also applicable to the defect detection and rejection of other cylindrical workpieces (such as battery electrodes, ceramic rods).

Claims

1. An automatic battery carbon rod defect detection and rejection device, comprising a tube chain machine (1), characterized in that: The feeding end (11) of the tube chain machine (1) is connected to a rod sorting machine (2) and a feeding conveyor belt (3) in sequence, and the discharging end (12) of the tube chain machine (1) is connected to a box packing machine (4). The tube chain machine (1) is provided with a frame (13), a steel plate (14) and a plurality of rollers (15). The plurality of rollers (15) are arranged at intervals and are rotatably mounted on the frame (13). The steel plate (14) is fixedly mounted on the frame (13) and is in contact with the bottoms of the plurality of rollers (15). Carbon rods (100) can be placed on the steel plate (15) between two adjacent rollers (15), and the carbon rods (100) can be transported from the feeding end (11) to the discharging end (12). 12), the plurality of rollers (15) are connected to a driving mechanism, and roll under the resistance of the steel plate (14) and drive the carbon rod (100) to rotate, a camera (5) is provided above the tube chain machine (1), the visual area of ​​the camera (5) is located on the tube chain machine (1), and is used to take pictures of the carbon rods (100) conveyed on the tube chain machine (1) to identify defective parts, a blowing nozzle (6) is provided on one side of the tube chain machine (1), the air outlet end of the blowing nozzle (6) faces the tube chain machine (1), and can blow off the carbon rods (100) conveyed on the tube chain machine (1) by outputting a strong airflow, and the air inlet end of the blowing nozzle (6) is connected to the blower through an air pipe (61).

2. The automatic battery carbon rod defect detection and rejection device according to claim 1 is characterized in that: The tube chain machine (1) is provided with a trigger switch (7), which is located on the steel plate (14) and is spaced apart from the plurality of rollers (15), and can be triggered by the carbon rod (100) transported on the tube chain machine (1).

3. The automatic battery carbon rod defect detection and rejection device according to claim 2 is characterized in that: The air pipe (61) is provided with a solenoid valve (62) for controlling the interruption of air flow.

4. The automatic battery carbon rod defect detection and rejection device according to claim 3 is characterized in that: The upper surface of the steel plate (14) is provided with anti-skid grooves, and the anti-skid grooves can contact the carbon rods (100) transported on the tube chain machine (1).

5. The automatic battery carbon rod defect detection and rejection device according to claim 4 is characterized in that: A fill light is also provided above the tube chain machine (1), and the light source of the fill light covers the visual area of ​​the camera (5).

6. The automatic battery carbon rod defect detection and rejection device according to claim 5 is characterized in that: The distance between two adjacent rollers (15) is greater than the diameter of the carbon rod (100).

7. The control method of the automatic battery carbon rod defect detection and rejection device according to any one of claims 1 to 6, characterized in that: Every time the carbon rod (100) rotates a certain angle, the camera (5) takes a photo, and the camera (5) takes photos of multiple carbon rods (100) simultaneously with a single trigger.

8. The control method of the automatic battery carbon rod defect detection and rejection device according to claim 7 is characterized in that: The camera (5) takes two sets of photos per second.

9. The control method of the automatic battery carbon rod defect detection and rejection device according to claim 8 is characterized in that: If the trigger switch (7) is not triggered or the trigger interval exceeds 60 ms, the tube chain machine (1) automatically stops and sounds an alarm.

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