Lens mirror automatic dust removal system

Abstract

The utility model discloses a lens mirror surface automatic dust removal system relates to tobacco foreign matter intelligence system technology field, it includes: electric control device, it includes controller, the input output device who is connected with controller, at least one solenoid valve who is connected with input output device, and input output device is used for receiving the operation signal of controller, and sends the indication to solenoid valve to control solenoid valve guide break, upper cabin body, it includes at least one group first camera lens, and the first reflector that is distributed with first camera lens corresponds and upper nozzle, lower cabin body, it includes at least one group second camera lens and the second reflector that is distributed with second camera lens corresponds and lower nozzle, gas supply system, the compressed air that provides is connected with upper nozzle and lower nozzle through pipeline, and solenoid valve is located on the pipeline to control the start -stop of upper nozzle and lower nozzle. The device can solve the cleanliness problem of camera lens and reflector.

Description

Technical Field

[0001] This utility model relates to the technical field of intelligent tobacco foreign object removal systems, and more specifically, to an automatic dust removal system for lens surfaces. Background Technology

[0002] In existing technologies, intelligent foreign object removal systems for tobacco are used on tobacco processing production lines, typically installed after leaf moistening. Their main function is to remove foreign objects contained within the leaves. The equipment primarily uses a set of six devices, consisting of one camera lens and one reflector, evenly distributed across two chambers. Computer control technology and real-time digital image processing are used to control hundreds of parallel-arranged compressed air solenoid valves, achieving the desired foreign object removal effect. The camera lens and reflector are the core detection components of the removal system; their cleanliness directly affects the removal efficiency, with tests showing a 10% to 15% difference in removal rate.

[0003] The intelligent tobacco foreign object removal system takes into account the impact of lenses and reflectors on the removal efficiency and offers the following solutions: 1. Install sealing rubber gaskets on the lens compartment door to reduce dust entry; 2. Establish a periodic lens compartment maintenance plan, with manual maintenance performed daily. However, due to the large size of the lens compartment and the multiple internal wiring and pipes connecting to the outside, simply installing sealing rubber gaskets on the door cannot achieve a complete seal. Furthermore, manual maintenance requires 1-2 hours per session, incurring labor costs, and the optimal cleanliness of the lenses and reflectors after maintenance is short-lived, making it impossible to maintain the equipment in optimal operating condition long-term.

[0004] In summary, how to provide a solution that can both address the cleanliness issues of camera lenses and reflectors and reduce the workload of operators is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide an automatic dust removal system for camera lenses and mirrors, which can solve the problem of maintaining the best cleanliness of camera lenses and mirrors, keeping camera lenses and mirrors in the best clean state at all times. Moreover, this device cannot be manually operated, which can effectively reduce the labor intensity of operators.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automatic lens dust removal system includes:

[0008] An electronic control device includes a controller, an input / output device connected to the controller, and at least one solenoid valve connected to the input / output device. The input / output device is used to receive the operating signal from the controller and send an instruction to the solenoid valve to control the solenoid valve to turn off.

[0009] The upper chamber includes at least one set of first camera lenses, first reflectors distributed corresponding to the first camera lenses, and upper nozzles for blowing the first camera lenses.

[0010] The lower hull includes at least one set of second camera lenses and second reflectors distributed corresponding to the second camera lenses, as well as a lower nozzle for purging the second reflectors;

[0011] The air supply system provides compressed air that is connected to the upper nozzle and the lower nozzle via pipelines. The solenoid valve is located on the pipelines to control the start and stop of the upper nozzle and the lower nozzle.

[0012] In one embodiment, the electronic control device further includes a 220V power supply, a 24V power supply, and an air switch for connecting the 220V power supply and the 24V power supply. The controller and the input / output device are both connected to the 24V power supply. The 24V power supply is used to output the 220V AC power from the 220V power supply as 24V DC power to supply power to the controller and the input / output device.

[0013] In one embodiment, the upper chamber is provided with three sets of first camera lenses, three first reflectors and three upper nozzles, and the lower chamber is provided with three sets of second camera lenses, three second reflectors and three lower nozzles. Each solenoid valve is connected to a set of upper nozzles and lower nozzles arranged symmetrically in the upper and lower chambers.

[0014] In one embodiment, the input / output device is connected to each of the solenoid valves via terminal blocks.

[0015] In one embodiment, the air supply system includes an air tank containing compressed air and a pressure reducing valve. The air tank is connected to the pressure reducing valve via the pipeline, and the pressure reducing valve is connected to each of the solenoid valves via the pipeline.

[0016] In one embodiment, the lower nozzle includes a fan-shaped nozzle, the outlet airflow of which has a diffusion angle of 30° to 60° to cover the entire plane of the second reflector.

[0017] In one embodiment, the upper nozzle comprises a circular nozzle.

[0018] In one embodiment, the distance between the upper nozzle and the first camera lens, and the distance between the lower nozzle and the second camera lens, are 20mm to 80mm.

[0019] In one embodiment, both the upper nozzle and the lower nozzle are fixed to the bracket by a universal adjustment head, with the upper nozzle facing the surface of the first camera lens and the lower nozzle facing the surface of the second camera lens.

[0020] In one embodiment, the bracket is fixed to the inner wall of the cabin or the equipment frame, and the bracket is provided with a slide rail or slot structure to support the quick assembly and disassembly of the upper nozzle and the lower nozzle.

[0021] When using the automatic dust removal system for lens surfaces provided by this utility model, a common intelligent tobacco foreign object removal system consists of an upper chamber and a lower chamber. The upper chamber has three sets of first camera lenses and a first reflector. The first camera lenses, because they are at an upward angle to the horizontal, shoot onto the material sampling area below through the first reflector. Due to gravity, the first reflector does not easily accumulate dust, so the upper chamber only needs to consider the blowing and cleaning of the first camera lenses. Furthermore, the lower chamber has three sets of second camera lenses and second reflectors. The second camera lenses are horizontally projected onto the second reflector at a 45° angle. The second camera lenses also do not easily accumulate dust, so the lower chamber only needs to consider the blowing and cleaning of the second reflector.

[0022] When the main control cabinet of the intelligent tobacco foreign object removal system is powered on, it provides power to the controller and input / output devices. After the intelligent tobacco foreign object removal system starts automatic operation, its automatic signal is connected to the input / output devices. The controller executes the automatic cleaning program, powers each solenoid valve, and conducts compressed air from the air supply system through pipelines to the upper and lower nozzles, thereby realizing the automatic cleaning function of the first camera lens in the upper chamber and the second reflector in the lower chamber.

[0023] The automatic cleaning procedure refers to the process where, upon receiving the automatic operation signal from the intelligent tobacco foreign object removal system, the first solenoid valve is energized, controlling the operation of the first group's upper nozzle (which blows the first camera lens in the upper left direction) and the first group's lower nozzle (which blows the second reflector in the lower left direction) to clean the first camera lens and the second reflector of the first group. Then, the first solenoid valve is de-energized, and the second solenoid valve is energized, controlling the operation of the second group's upper nozzle (which blows the first camera lens in the upper middle direction) and the second group's lower nozzle (which blows the second reflector in the lower middle direction) to clean the first camera lens and the second reflector of the second group. Finally, the second solenoid valve is de-energized, and the third solenoid valve is energized, controlling the operation of the second group's upper nozzle (which blows the first camera lens in the upper right direction) and the second group's lower nozzle (which blows the second reflector in the lower right direction) to clean the first camera lens and the second reflector of the third group. Finally, the third solenoid valve is de-energized, while the first solenoid valve is energized… Within one operating cycle, the three solenoid valves operate sequentially, thus preventing excessive pressure drops due to overuse of compressed air, which could affect the operation of the intelligent tobacco foreign object removal system. Using this device solves the problem of maintaining optimal cleanliness of the camera lens and reflector, ensuring they are always in optimal cleanliness. Furthermore, this device requires no manual operation, effectively reducing the workload for operators.

[0024] In summary, the automatic lens dust removal system provided by this utility model can solve the problem of maintaining the optimal cleanliness of camera lenses and mirrors, ensuring that camera lenses and mirrors are always in the best clean condition. Moreover, this device cannot be manually operated, which can effectively reduce the labor intensity of operators. Attached Figure Description

[0025] 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 embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the automatic dust removal system for lens surfaces provided by this utility model.

[0027] Figure 2 This is a schematic diagram showing the connection between the second reflector, the lower nozzle, and the air supply system.

[0028] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0029] Figure 4 This is a schematic diagram showing the connection between the first camera lens, the upper nozzle, and the air supply system.

[0030] Figures 1-4 middle:

[0031] 1 is the electrical control device, 11 is the controller, 12 is the input / output device, 13 is the 220V power supply, 14 is the solenoid valve, 15 is the air switch, 16 is the terminal block, 2 is the upper cabin, 21 is the first camera lens, 22 is the upper nozzle, 3 is the lower cabin, 31 is the second reflector, 32 is the lower nozzle, 4 is the air supply system, 41 is the air tank, 42 ​​is the pressure reducing valve, and 43 is the pipeline. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] The core of this utility model is to provide an automatic dust removal system for camera lenses, which can solve the problem of maintaining the best cleanliness of camera lenses and mirrors, keeping camera lenses and mirrors in the best clean state at all times. Moreover, this device cannot be manually operated, which can effectively reduce the labor intensity of operators.

[0034] Please refer to Figure 1 This specific embodiment provides an automatic dust removal system for lens surfaces, including:

[0035] The electronic control device 1 includes a controller 11, an input / output device 12 connected to the controller 11, and at least one solenoid valve 14 connected to the input / output device 12. The input / output device 12 is used to receive the operating signal from the controller 11 and send an instruction to the solenoid valve 14 to control the solenoid valve 14 to turn off.

[0036] The upper chamber 2 includes at least one set of first camera lenses 21, first reflectors distributed corresponding to the first camera lenses 21, and upper nozzles 22 for purging the first camera lenses 21.

[0037] The lower hull 3 includes at least one set of second camera lenses and second reflectors 31 distributed corresponding to the second camera lenses, as well as a lower nozzle 32 for purging the second reflectors 31.

[0038] The compressed air supplied by the air supply system 4 is connected to the upper nozzle 22 and the lower nozzle 32 through the pipeline 43. The solenoid valve 14 is provided on the pipeline 43 to control the start and stop of the upper nozzle 22 and the lower nozzle 32.

[0039] In practical applications, the shape, type, size, and position of the electronic control device 1, upper compartment 2, lower compartment 3, and air supply system 4 can be determined according to the actual situation and needs.

[0040] When using the automatic dust removal system for lens surfaces provided by this utility model, a common intelligent tobacco foreign object removal system consists of an upper chamber 2 and a lower chamber 3. The upper chamber 2 has three sets of first camera lenses 21 and first reflectors. The first camera lenses 21 take pictures at an upward angle to the horizontal, and the first reflectors illuminate the material sampling area below. Due to gravity, the first reflectors do not easily accumulate dust, so the upper chamber 2 only needs to consider the blowing of the first camera lenses 21. Furthermore, the lower chamber 3 has three sets of second camera lenses and second reflectors 31. The second camera lenses are horizontally positioned on the second reflectors 31 at a 45° angle. The second camera lenses do not easily accumulate dust, so the lower chamber 3 only needs to consider the blowing of the second reflectors 31.

[0041] When the main control cabinet of the intelligent tobacco foreign object removal system is powered on, it can provide power to the controller 11 and the input / output device 12. After the intelligent tobacco foreign object removal system starts to run automatically, its automatic signal is connected to the input / output device 12. The controller 11 executes the automatic cleaning program, powers each solenoid valve 14, and conducts the compressed air of the air supply system 4 through the pipeline 43 to the upper nozzle 22 and the lower nozzle 32, so as to realize the automatic cleaning function of the first camera lens 21 of the upper chamber 2 and the second reflector 31 of the lower chamber 3.

[0042] The automatic cleaning procedure refers to the process where, upon receiving the automatic operation signal from the intelligent tobacco foreign object removal system, the first solenoid valve 14 is energized, controlling the operation of the first group's upper nozzle 22 (which blows the first camera lens 21 in the upper left direction) and the first group's lower nozzle 32 (which blows the second reflector 31 in the lower left direction) to clean the first camera lens 21 and the second reflector 31 of the first group. Then, the first solenoid valve 14 is de-energized, and the second solenoid valve 14 is energized, controlling the operation of the second group's upper nozzle 22 (which blows the second camera lens 21 in the upper left direction) to clean the second camera lens 21 and the second reflector 31 of the first group. The system operates by first operating the first camera lens 21 and the second lower nozzle 32 (which blows the second reflector 31 in the lower direction) to clean the first camera lens 21 and the second reflector 31 in the second group. Then, the second solenoid valve 14 is de-energized, and the third solenoid valve 14 is energized, which controls the operation of the upper nozzle 22 (which blows the first camera lens 21 in the upper right direction) and the lower nozzle 32 (which blows the second reflector 31 in the lower right direction) to clean the first camera lens 21 and the second reflector 31 in the third group. Finally, the third solenoid valve 14 is de-energized, and the first solenoid valve 14 is energized... Within one operating cycle (e.g., 30 seconds, each solenoid valve 14 can be energized for 10 seconds), the three solenoid valves 14 operate in sequence, thereby avoiding excessive pressure drop due to excessive use of compressed air, which would affect the operation of the intelligent tobacco foreign object removal system. This device solves the problem of maintaining optimal cleanliness of camera lenses and reflectors, ensuring they are always in the best possible condition. Furthermore, it requires no manual operation, effectively reducing the workload for operators.

[0043] In summary, the automatic lens dust removal system provided by this utility model can solve the problem of maintaining the optimal cleanliness of camera lenses and mirrors, ensuring that camera lenses and mirrors are always in the best clean condition. Moreover, this device cannot be manually operated, which can effectively reduce the labor intensity of operators.

[0044] In one embodiment, the electronic control device 1 further includes a 220V power supply 13, a 24V power supply, and an air switch 15 for connecting the 220V power supply 13 and the 24V power supply. The controller 11 and the input / output device 12 are both connected to the 24V power supply. The 24V power supply is used to output the 220V AC power from the 220V power supply 13 as 24V DC power to supply power to the controller 11 and the input / output device 12. That is, when the main control cabinet of the intelligent tobacco foreign object removal system is powered on, the 220V AC voltage is connected to the 24V DC power supply through the air switch 154 via wires for transformation, and then provides power to the controller 11 and the input / output device 12.

[0045] In one embodiment, the upper chamber 2 is provided with three sets of first camera lenses 21, three first reflectors and three upper nozzles 22, and the lower chamber 3 is provided with three sets of second camera lenses, three second reflectors 31 and three lower nozzles 32. Each solenoid valve 14 is connected to a set of upper nozzles 22 and lower nozzles 32 arranged symmetrically in the upper and lower chambers.

[0046] In one embodiment, the input / output device 12 is connected to each solenoid valve 14 via terminal block 16.

[0047] It should be noted that the 220V power supply 13 is connected to the 24V power supply via an air switch 15. The function of the air switch 15 is to protect the circuit and prevent high current from burning out the components. The 24V power supply is equivalent to a transformer, used to convert the input 220V AC power to 24V DC power to supply power to the controller 11 and the input / output device 12. The controller 11 (such as a Siemens PLC) is responsible for executing the program. The input / output device 12 receives the operating conditions and results sent by the controller 11 through the terminal block 16. Here, receiving the operating conditions means that the operating signals from external devices or the controller 11 are connected to the input module of the input / output device 12 through the terminal block 16. The output module of the input / output device 12 sends the results to the three solenoid valves 14 through the terminal block 16.

[0048] In one embodiment, the air supply system 4 includes an air supply tank 41 containing compressed air and a pressure reducing valve 42. The air supply tank 41 is connected to the pressure reducing valve 42 via a pipeline 43, and the pressure reducing valve 42 is connected to each solenoid valve 14 via a pipeline 43. The pressure reducing valve 42 is located upstream of the solenoid valve 14 and is used to stably regulate the input high-pressure compressed air to a working pressure range of 0.3MPa to 0.6MPa, ensuring a gentle and effective purging airflow and preventing damage to the surface of the optical components.

[0049] The compressed air (1MPa) in the air supply tank 41 is output as 0.4MPa compressed air through the pressure reducing valve 42, and then connected to three solenoid valves 14. When the solenoid valve 14 receives an electrical signal, the 0.4MPa compressed air is connected to the corresponding upper nozzle 22 and lower nozzle 32 through the pipeline 43 for blowing and cleaning operation.

[0050] In one embodiment, such as Figure 2 and Figure 3 As shown, the lower nozzle 32 includes a fan-shaped nozzle, and the outlet airflow of the fan-shaped nozzle has a diffusion angle of 30° to 60° to cover the entire plane of the second reflector 31.

[0051] In one embodiment, such as Figure 4 As shown, the upper nozzle 22 includes a circular nozzle.

[0052] In one embodiment, the distance between the upper nozzle 22 and the first camera lens 21, and the distance between the lower nozzle 32 and the second camera lens, are 20mm to 80mm.

[0053] In one embodiment, both the upper nozzle 22 and the lower nozzle 32 are fixed to the bracket via a universal adjustment head. The upper nozzle 22 faces the surface of the first camera lens 21, and the lower nozzle 32 faces the surface of the second camera lens. The universal adjustment head includes a ball joint and a locking nut, allowing the upper nozzle 22 and the lower nozzle 32 to adjust their spray direction and lock their position in three-dimensional space to accommodate the cleaning needs of lenses or mirrors at different angles.

[0054] In one embodiment, the bracket is fixed to the inner wall of the chamber or the equipment frame, and the bracket is provided with a slide rail or slot structure to support the quick assembly and disassembly of the upper nozzle 22 and the lower nozzle 32. When a damage occurs in one of the upper nozzle 22 or the lower nozzle 32, the damaged part can be replaced by disassembly, and the new part can be used in conjunction with other undamaged parts to reduce the maintenance cost of the device and extend its service life.

[0055] This application has been put into use. For example, there are two tobacco foreign object intelligent rejection machines in the leaf processing line. One is machine No. 1 (without the automatic lens dust removal system of this device installed), and the other is machine No. 2 (which was equipped with the automatic lens dust removal system of this device in August 2024). From the rejection rate records of machine No. 1 and machine No. 2 from April to December 2024, it can be seen that from the testing in September, the rejection rate of machine No. 2 has significantly improved compared with the rejection rate of machine No. 1. Moreover, the rejection rate of machine No. 2 itself from September to December is also significantly improved compared with April to June. This further proves that this device has a significant improvement effect on the tobacco foreign object intelligent rejection system.

[0056] It should be noted that the first camera lens 21 and the second camera lens, the first reflector and the second reflector 31 mentioned in this application are only distinguished by their different positions and do not have any order of precedence.

[0057] In addition, it should be noted that the orientation or positional relationship indicated by "upper" and "lower" in this application is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the purpose of simplifying the description and making it easier to understand, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0058] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. Any combination of all embodiments provided by this utility model is within the protection scope of this utility model and will not be elaborated upon here.

[0059] The automatic lens dust removal system provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An automatic dust removal system for lens surfaces, characterized in that, include: An electronic control device (1) includes a controller (11), an input / output device (12) connected to the controller (11), and at least one solenoid valve (14) connected to the input / output device (12). The input / output device (12) is used to receive the operating signal from the controller (11) and send an instruction to the solenoid valve (14) to control the solenoid valve (14) to turn off. The upper chamber (2) includes at least one set of first camera lenses (21), first reflectors distributed corresponding to the first camera lenses (21), and upper nozzles (22) for blowing the first camera lenses (21). The lower hull (3) includes at least one set of second camera lenses and second reflectors (31) distributed corresponding to the second camera lenses, as well as a lower nozzle (32) for purging the second reflectors (31). The compressed air supplied by the air supply system (4) is connected to the upper nozzle (22) and the lower nozzle (32) through the pipeline (43). The solenoid valve (14) is located on the pipeline (43) to control the start and stop of the upper nozzle (22) and the lower nozzle (32).

2. The automatic lens dust removal system according to claim 1, characterized in that, The electronic control device (1) also includes a 220V power supply (13), a 24V power supply, and an air switch (15) for connecting the 220V power supply (13) and the 24V power supply. The controller (11) and the input / output device (12) are both connected to the 24V power supply. The 24V power supply is used to output the 220V AC power of the 220V power supply (13) as 24V DC power to supply power to the controller (11) and the input / output device (12).

3. The automatic lens dust removal system according to claim 1, characterized in that, The upper cabin (2) is provided with three sets of first camera lenses (21), three first reflectors and three upper nozzles (22), and the lower cabin (3) is provided with three sets of second camera lenses, three second reflectors (31) and three lower nozzles (32). Each solenoid valve (14) is connected to a set of upper nozzles (22) and lower nozzles (32) arranged symmetrically in the upper and lower parts.

4. The automatic lens dust removal system according to claim 3, characterized in that, The input / output device (12) is connected to each of the solenoid valves (14) via a terminal block (16).

5. The automatic lens dust removal system according to claim 3, characterized in that, The air supply system (4) includes an air supply tank (41) containing compressed air and a pressure reducing valve (42). The air supply tank (41) is connected to the pressure reducing valve (42) through the pipeline (43), and the pressure reducing valve (42) is connected to each of the solenoid valves (14) through the pipeline (43).

6. The automatic lens surface dust removal system according to any one of claims 1 to 5, characterized in that, The lower nozzle (32) includes a fan-shaped nozzle, the outlet airflow of which has a diffusion angle of 30° to 60° to cover the entire plane of the second reflector (31).

7. The automatic lens surface dust removal system according to any one of claims 1 to 5, characterized in that, The upper nozzle (22) includes a circular nozzle.

8. The automatic lens dust removal system according to any one of claims 1 to 5, characterized in that, The distance between the upper nozzle (22) and the first camera lens (21) and the distance between the lower nozzle (32) and the second camera lens are 20mm to 80mm.

9. The automatic lens surface dust removal system according to any one of claims 1 to 5, characterized in that, Both the upper nozzle (22) and the lower nozzle (32) are fixed to the bracket by a universal adjustment head. The upper nozzle (22) faces the surface of the first camera lens (21), and the lower nozzle (32) faces the surface of the second camera lens.

10. The automatic lens dust removal system according to claim 9, characterized in that, The bracket is fixed to the inner wall of the cabin or the equipment frame. The bracket is provided with a slide rail or slot structure to support the quick assembly and disassembly of the upper nozzle (22) and the lower nozzle (32).

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