High-temperature monitoring device with self-cleaning function
By designing a high-temperature monitoring device with a self-cleaning function and using a dust-cleaning scraper to automatically clean the lens, the problem of blurred camera images during the galvanizing process was solved, achieving long-term stable operation and efficient production.
Patent Information
- Application Number
- CN202511106715.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-08
- Publication Date
- 2025-10-10
AI Technical Summary
In the existing galvanizing process, the camera system has blurred surveillance images due to zinc dust adhesion, which requires frequent manual cleaning, increasing the workload and shortening the clarity maintenance time.
A high-temperature monitoring device with a self-cleaning function is designed. A cleaning scraper rotates synchronously with the high-temperature lens. The cleaning scraper is driven by a drive motor to automatically clean the lens online, reducing manual intervention.
It significantly extends the service life of the camera system, improves image clarity and production efficiency, and reduces manual cleaning costs.
Smart Images

Figure CN120769150A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of hot-dip galvanizing processes. Background Art
[0002] During the zinc bath galvanizing process for galvanized sheet, especially high-end automotive panels, the proper state of the strip entering the zinc bath and the effective control of dross on the zinc bath surface are crucial, directly impacting the uniformity of the coating, surface finish, and corrosion resistance of the final product. However, production line operators cannot visually observe the galvanizing process. Currently, all domestic galvanized sheet production lines utilize a high-temperature camera system within the furnace nose area to monitor the galvanizing process. However, after a period of operation, the camera system experiences continuous evaporation of the zinc bath, causing zinc dust to rise and adhere to all internal surfaces of the furnace nose, including the high-temperature glass at the front of the camera system's supplemental light source. As the light source itself is gradually obscured by the zinc dust, the surveillance footage, which was initially clear, gradually becomes blurry, ultimately completely obscured. Consequently, all production lines resort to manually removing the camera system and manually wiping the zinc dust off the glass during monthly shutdowns. This creates additional workload and the surveillance system's image clarity barely lasts a month. Summary of the Invention
[0003] In order to solve the above-mentioned problem of using a camera to observe the status of the galvanizing area during the galvanizing process of galvanized sheet materials, the present invention provides a high-temperature monitoring device with a self-cleaning function.
[0004] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a high-temperature monitoring device with a self-cleaning function, a camera mounting spindle 4 is fixedly mounted on a flange mounting base 2, a camera body 9 is mounted on the front of the camera mounting spindle 4, a camera lens assembly 10 is mounted on the front end of the camera body 9, a patch lamp fill light source 11 is mounted on the outside of the camera lens assembly 10, and a high-temperature lens 12 is mounted on the front end of the camera lens assembly 10; a rotating support sleeve 7 is mounted on the camera mounting spindle 4 through a bearing 6, the rotating support sleeve 7 is located outside the camera body 9 and the camera lens assembly 10, an outer protective cover 8 of the camera system is mounted on the outside of the rotating support sleeve 7, and a dust cleaning scraper 13 is mounted on the inner side of the front of the outer protective cover 8 of the camera system corresponding to the high-temperature lens 12; a camera outer sleeve gear ring 3 is mounted on the inner side of the rear end of the rotating support sleeve 7 along the circumferential direction, a drive motor 1 is mounted on the flange mounting base 2, a gear 15 is mounted on the motor output shaft 5 of the drive motor 1, and the gear 15 is meshed with the camera outer sleeve gear ring 3.
[0005] A camera system peephole 14 is provided at the front end of the camera lens assembly 10 .
[0006] Three groups of cleaning scrapers 13 are installed inside the outer protective cover 8 of the camera system. The cleaning scrapers 13 are in linear contact with the surface of the high-temperature lens 12.
[0007] The self-cleaning high-temperature monitoring device of this invention uses a cleaning scraper to automatically clean the lens online, significantly reducing the manual intervention and labor involved in cleaning the front-end lens, thereby improving the long-term stability of the camera system. This online zinc dust cleaning device can increase the service life from 30 days before modification to ≥90 days after modification. Continuous cleaning is achieved, reducing manual cleaning costs and improving production efficiency. The device is highly integrated and suitable for retrofitting existing galvanizing production lines or configuring new ones. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 This is a main cross-sectional structural diagram of a high-temperature monitoring device with a self-cleaning function according to the present invention.
[0009] Figure 2 It is a right view of the high temperature monitoring device with self-cleaning function of the present invention.
[0010] In the figure: 1. Drive motor, 2. Flange mounting base, 3. Camera outer sleeve gear ring, 4. Camera mounting spindle, 5. Motor output shaft, 6. Bearing, 7. Rotary support sleeve, 8. Camera system outer protective cover, 9. Camera body, 10. Camera lens assembly, 11. SMD lamp fill light source, 12. High temperature resistant lens, 13. Dust cleaning scraper, 14. Camera system peephole, 15. Gear. DETAILED DESCRIPTION
[0011] The structure of the high temperature monitoring device with self-cleaning function of the present invention is as follows Figure 1 and Figure 2As shown, the drive motor 1 is the power component of the dust cleaning device, which drives the camera rotating support sleeve 7 to rotate through the camera outer sleeve gear ring 3. The camera system and the drive motor (1) are both installed with the flange mounting base 2 and the equipment interface. The camera outer sleeve gear ring 3 is installed and positioned on the rotating support sleeve 7. The driving motor 1 and the gear 15 rotate the support sleeve 7 to achieve the function of automatic online dust cleaning of the dust scraper 13. All the cables, signal lines and other line parts of the camera system are inside the camera mounting main shaft 4, and the flange mounting base 2, bearing 6, camera body 9, and camera lens assembly 10 are fixed through the camera mounting main shaft 4, so that the above components are in a fixed state and will not rotate. The bearing 6 is located between the camera mounting main shaft 4 and the rotating support sleeve 7 and is the executive component of the rotation action. The rotating support sleeve 7, the camera outer sleeve gear ring 3 and the camera system outer protective cover 8 are installed and fastened to each other, and are in a synchronous rotation state when cleaning the zinc dust on the surface of the high-temperature lens 12. The outer protective cover 8 of the camera system provides protection for all components inside the camera system and provides an installation location for the cleaning scraper 13 of the cleaning device. The patch lamp supplementary light source 11 is a key component of the camera body 9 and the camera lens assembly 10. Its main function is to provide the monitoring system with environmental lighting function under dark working conditions and to improve the ambient brightness when the monitoring system is working. If the light on the surface of the lens becomes dim due to the adhesion of zinc dust, the overall image quality of the monitoring system will be significantly deteriorated until it cannot be used. The light source protection high-temperature resistant lens 12 is installed on the outside of the patch lamp supplementary light source 11 to provide environmental protection for the patch lamp supplementary light source 11 and ensure that zinc dust does not directly adhere to the supplementary light source body. It will intercept all zinc dust and provide physical conditions for cleaning for the cleaning scraper 13. There are 3 groups of automatic cleaning scrapers 13, which are fixed on the outer protective cover 8 of the camera system and are connected to the outer protective cover 8 of the camera system as a whole during rotation. The cleaning blade 13 acts on the surface of the high-temperature lens 12, making linear contact with it and scraping it in a clockwise motion. Zinc dust on the surface of the high-temperature lens 12 is easily removed by the cleaning blade 13 without affecting the image clarity of the camera surveillance system. The camera system monitors the operating status of the equipment inside the furnace nose through the camera peephole 14.
[0012] Working Principle: A drive motor 1 rotates the motor output shaft 5, which transmits the gear torque to the rotating support sleeve 7 via the camera outer sleeve ring gear 3 and bearing 6. The rotating support sleeve 7 then rotates the camera system's outer protective cover 8 and cleaning blade 13 to achieve the practical effect of online cleaning of zinc dust from the front end of the camera system. The camera body 9 and camera lens assembly 10 provide monitoring imaging, while the SMD light source 11 provides critical lighting to complete the camera system's monitoring operation within the furnace nose. This invention can periodically and automatically clean zinc dust, achieving long-term and efficient image clarity. This improves the quality of high-end automotive plate production lines and fills a functional gap in similar domestic products.
Claims
1. A high temperature monitoring device with a self-cleaning function, characterized in that: The camera mounting spindle (4) is fixedly mounted on the flange mounting base (2), the camera body (9) is mounted on the front of the camera mounting spindle (4), the camera lens assembly (10) is mounted on the front end of the camera body (9), the patch light source (11) is mounted on the outside of the camera lens assembly (10), and the high-temperature lens (12) is mounted on the front end of the camera lens assembly (10); a rotating support sleeve (7) is mounted on the camera mounting spindle (4) through a bearing (6), and the rotating support sleeve (7) is located between the camera body (9) and the camera The outer layer protective cover (8) of the camera system is installed on the outside of the lens assembly (10) and the outside of the rotating support sleeve (7), and a dust cleaning scraper (13) is installed on the inner side of the front of the camera system outer layer protective cover (8) corresponding to the high-temperature lens (12); the outer sleeve gear ring (3) of the camera is installed along the circumferential direction on the inner side of the rear end of the rotating support sleeve (7), the driving motor (1) is installed on the flange mounting base (2), the motor output shaft (5) of the driving motor (1) is installed with a gear (15), and the gear (15) is meshed with the outer sleeve gear ring (3) of the camera.
2. A high temperature monitoring device with a self-cleaning function according to claim 1, characterized in that: A camera system peephole (14) is provided at the front end of the camera lens assembly (10).
3. The high temperature monitoring device with self-cleaning function according to claim 1, characterized in that: Three groups of dust-cleaning scrapers (13) are installed on the inner side of the outer protective cover (8) of the camera system, and the dust-cleaning scrapers (13) are in linear contact with the surface of the high-temperature lens (12).