Online detection device for metal heat treatment
By using an online detection device with a transparent heat-insulating cylinder and a fan for cooling during the metal heat treatment process, the problems of fixed camera angle and high-temperature aging are solved, achieving flexible detection and extending camera life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-14
AI Technical Summary
During the heat treatment process, the defect direction of metals is inconsistent, the position of industrial cameras is fixed and cannot be flexibly adjusted, and they are prone to aging in high-temperature environments, which affects the detection effect and lifespan.
An online inspection device was designed, comprising a transparent heat insulation cylinder, a fan, and a drive assembly. The transparent heat insulation cylinder protects the camera, the fan cools it down, and the drive assembly adjusts the camera angle to adapt to different defect directions.
It enables flexible adjustment of the camera angle and efficient heat insulation, extending the camera's lifespan and improving the accuracy and stability of detection.
Smart Images

Figure CN224122484U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of detection technology, specifically to an online detection device for metal heat treatment. Background Technology
[0002] Continuous metal production offers advantages such as high efficiency, stability, and energy saving. Correspondingly, it also requires continuous heat treatment and online inspection of the metal. Currently, at least three industrial cameras are often installed around the roller conveyor to collect images of the metal during the heat treatment process from different directions. The images are then processed and analyzed by an industrial control computer to detect defects such as cracks, pores, slag inclusions, and dimensional changes on the metal surface, thereby ensuring that the quality of the heat-treated metal products meets the requirements.
[0003] Due to factors such as the continuous forming method and cross-sectional shape of metals, the direction in which defects are likely to occur during the heat treatment process varies. The position of the industrial camera cannot be flexibly adjusted according to the inspection requirements to achieve the optimal image acquisition direction. In addition, the metal is heated during the heat treatment process, and the long-term operation of the industrial camera in a high-temperature environment will lead to problems such as hardware aging, performance degradation, and increased risk of failure. The protective measures (high-temperature resistant materials, fans, and heat sinks, etc.) cannot achieve a good heat resistance effect.
[0004] Therefore, in order to solve the above problems, an online detection device for metal heat treatment is proposed. Utility Model Content
[0005] The purpose of this invention is to provide an online inspection device for metal heat treatment, which can flexibly adjust the image acquisition direction of an industrial camera and provide heat insulation protection for the industrial camera, thereby solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an online detection device for metal heat treatment, comprising a base, on which a heat insulation cylinder, a fan, and a drive assembly are fixedly mounted via a support frame on the upper side. The heat insulation cylinder is a hollow cylinder made of transparent material. A fixed ring is fixedly mounted on the circumference of the heat insulation cylinder, and a rotating ring is rotatably mounted on the right end of the fixed ring. An industrial camera is fixedly mounted on the right end of the rotating ring, with the camera end of the industrial camera facing the axis of the heat insulation cylinder. A rack segment is fixedly mounted on the circumference of the rotating ring, and the drive assembly meshes with the rack segment. The output end of the fan is connected to the heat insulation cylinder via a delivery pipe.
[0007] Specifically, the number of industrial cameras is 2 to 6, evenly distributed in a circle.
[0008] Specifically, the drive assembly includes a geared motor and a gear. The geared motor is fixedly mounted on the base by a support frame, and a gear is fixedly mounted on the output end of the geared motor. The gear meshes with a rack segment.
[0009] Specifically, both ends of the heat insulation cylinder are fixedly installed with annular baffles, and the annular baffles are evenly provided with ventilation holes in a circular pattern.
[0010] Specifically, both ends of the heat insulation cylinder are fixedly installed with horn-shaped air guide channels.
[0011] Specifically, a guide wheel is uniformly mounted on the right end of the fixed ring in a circular motion, and an annular guide rail is fixedly mounted on the inner side of the circumference of the moving ring. The guide wheel has an annular groove that engages with the annular guide rail.
[0012] Specifically, an air filter is connected to the input end of the fan.
[0013] Specifically, the distance between the delivery pipe and the moving ring is greater than the width of the industrial camera.
[0014] Compared with the prior art, the beneficial effects of this utility model are: by setting up structures such as drive components, rack segments, fixed rings and moving rings, the image acquisition direction of the industrial camera can be adjusted, thereby detecting metal defects at the optimal position, making it flexible to use and convenient to operate;
[0015] By incorporating components such as fans and heat insulation cylinders, a heat insulation layer can be formed between the high-temperature metal parts and the industrial camera. The flowing air continuously carries away the heat, thereby further reducing the adverse effects of high temperatures on the industrial camera, ensuring image acquisition quality, and extending its service life. Attached Figure Description
[0016] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic front view of the structure of this utility model;
[0018] Figure 3 This is a partial sectional view illustrating the structure of this utility model;
[0019] Figure 4 This is a partial sectional view of the structure of the trumpet-shaped air guide channel of this utility model.
[0020] In the diagram: 1. Base, 2. Drive assembly, 21. Gear, 22. Gear motor, 3. Fixed ring, 4. Moving ring, 5. Industrial camera, 6. Heat insulation cylinder, 7. Horn-shaped air duct, 8. Air filter, 9. Fan, 10. Rack segment, 11. Annular baffle, 12. Ventilation hole, 13. Guide wheel, 14. Annular guide rail, 15. Conveying pipe. Detailed Implementation
[0021] 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.
[0022] Please see Figures 1 to 4 This utility model provides an online inspection device for metal heat treatment, including a base 1. A heat insulation cylinder 6, a fan 9, and a drive assembly 2 are fixedly installed on the upper side of the base 1 via a support frame. The heat insulation cylinder 6 is a hollow cylinder made of transparent material. A fixed ring 3 is fixedly installed on the circumference of the heat insulation cylinder 6. A moving ring 4 is rotatably installed on the right end of the fixed ring 3. An industrial camera 5 is fixedly installed on the right end of the moving ring 4. The camera end of the industrial camera 5 is set facing the axis of the heat insulation cylinder 6. The fixed ring 3 provides support, and the moving ring 4 can rotate circumferentially on the fixed ring 3 to adjust the angle of image acquisition by the industrial camera 5, making it convenient to align with metal surfaces prone to defects. The heat insulation cylinder 6, made of transparent material, does not affect the image acquisition of the industrial camera 5, and the air passing through the heat insulation cylinder 6 can reduce the temperature at the industrial camera 5, avoiding the impact of high temperature on the working performance of the industrial camera 5.
[0023] A rack segment 10 is fixedly installed on the circumferential side of the moving ring 4. The drive assembly 2 is meshed with the rack segment 10. The drive assembly 2 can rotate and adjust the moving ring 4 through the rack segment 10. The output end of the fan 9 is connected to the heat insulation cylinder 6 through the conveying pipe 15. When the fan 9 is working, it can convey high-pressure air into the heat insulation cylinder 6 through the conveying pipe 15 to meet the air flow requirements and ensure the heat exchange effect.
[0024] Specifically, the number of industrial cameras 5 is 2 to 6 evenly distributed in a circle. The more industrial cameras 5 there are, the more angles can be detected online. Correspondingly, the angle that the rotating ring 4 needs to be adjusted is smaller. The appropriate combination can be selected according to the shape of the heat-treated parts.
[0025] Please see Figure 3 The drive assembly 2 includes a geared motor 22 and a gear 21. The geared motor 22 is fixedly mounted on the base 1 by a support frame, and the gear 21 is fixedly mounted on the output end of the geared motor 22. The gear 21 meshes with the rack segment 10. The motor in the geared motor 22 has an encoder, which can precisely control the rotation angle of the moving ring 4 according to the number of rotations of the motor rotor and the transmission ratio of the gear 21 and the rack segment 10.
[0026] Please see Figure 4Both ends of the heat insulation cylinder 6 are fixedly installed with annular baffles 11, and the annular baffles 11 are evenly provided with ventilation holes 12 in a circular shape. The ventilation holes 12 on the annular baffles 11 are used to limit the speed of air discharge, so that the air can fill the heat insulation cylinder 6 first and then be discharged to ensure sufficient heat exchange.
[0027] Both ends of the heat insulation cylinder 6 are fixedly installed with trumpet-shaped air guide channels 7; the trumpet-shaped air guide channels 7 can block the left and right sides of the industrial camera 5, and the air after heat exchange in the heat insulation cylinder 6 can be discharged along the trumpet-shaped air guide channels 7, further extending the heat insulation area and improving the heat insulation effect.
[0028] Please see Figure 3 The right end of the fixed ring 3 is equipped with a guide wheel 13 that rotates evenly in a circle. The inner side of the circumference of the moving ring 4 is fixedly equipped with an annular guide rail 14. The guide wheel 13 has an annular groove that engages with the annular guide rail 14. The engagement between the annular groove and the annular guide rail 14 can prevent the moving ring 4 from disengaging from the guide wheel 13 due to axial movement. The number of guide wheels 13 is preferably 6 to ensure the support force and uniformity of the moving ring 4.
[0029] An air filter 8 is installed at the input end of the fan 9. When in use, the input end of the air filter 8 is connected to a low-temperature area (e.g., outdoors) through an extension pipe. When the fan 9 is working, the low-temperature air can be filtered by the air filter 8 before being introduced into the heat insulation cylinder 6, so as to prevent impurities in the air from entering the heat insulation cylinder 6 and affecting the permeability, thereby avoiding affecting the clarity of image acquisition by the industrial camera 5.
[0030] In addition, the distance between the conveying pipe 15 and the moving ring 4 is greater than the width of the industrial camera 5, which can prevent the industrial camera 5 from colliding with the conveying pipe 15 when it rotates with the moving ring 4.
[0031] The fan 9, geared motor 22 and industrial camera 5 are connected to an external industrial control computer for convenient centralized processing of image information and adjustment and control.
[0032] The working principle of this embodiment:
[0033] During the heat treatment process, the metal continuously passes through the heat insulation cylinder 6 via a roller conveyor. At the same time, the fan 9 can first deliver the filtered air into the heat insulation cylinder 6 and then discharge it along the trumpet-shaped air guide channel 7 to further reduce the adverse effects of high temperature on the industrial camera 5. When it is necessary to change the image acquisition direction of the industrial camera 5 according to the requirements, the moving ring 4 on the fixed ring 3 can be rotated through the meshing relationship between the drive component 2 and the rack segment 10, so that the industrial camera 5 can be rotated to align with the direction where defects often occur, in order to achieve the best image acquisition position.
[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An online inspection device for metal heat treatment, comprising a base (1), characterized in that: The base (1) is fixedly mounted on the upper side by a support frame with a heat insulation cylinder (6), a fan (9) and a drive assembly (2). The heat insulation cylinder (6) is a hollow cylinder made of transparent material. A fixed ring (3) is fixedly mounted on the circumference of the heat insulation cylinder (6). A moving ring (4) is rotatably mounted on the right end of the fixed ring (3). An industrial camera (5) is fixedly mounted on the right end of the moving ring (4). The camera end of the industrial camera (5) is set facing the axis of the heat insulation cylinder (6). A rack segment (10) is fixedly mounted on the circumference of the moving ring (4). The drive assembly (2) is meshed with the rack segment (10). The output end of the fan (9) is connected to the heat insulation cylinder (6) through a delivery pipe (15).
2. The online detection device for metal heat treatment according to claim 1, characterized in that: The number of industrial cameras (5) is 2 to 6, which are evenly distributed in a circle.
3. The online detection device for metal heat treatment according to claim 1, characterized in that: The drive assembly (2) includes a geared motor (22) and a gear (21). The geared motor (22) is fixedly mounted on the base (1) by a support frame, and the output end of the geared motor (22) is fixedly mounted with a gear (21). The gear (21) meshes with the rack segment (10).
4. The online detection device for metal heat treatment according to claim 1, characterized in that: Both ends of the heat insulation cylinder (6) are fixedly installed with annular baffles (11), and the annular baffles (11) are evenly provided with ventilation holes (12) in a circular pattern.
5. The online detection device for metal heat treatment according to claim 4, characterized in that: Both ends of the heat insulation cylinder (6) are fixedly installed with horn-shaped air guide channels (7).
6. The online detection device for metal heat treatment according to claim 1, characterized in that: The right end of the fixed ring (3) is equipped with a guide wheel (13) that rotates evenly in a circle. The inner side of the moving ring (4) is fixedly equipped with an annular guide rail (14). The guide wheel (13) has an annular groove that engages with the annular guide rail (14).
7. The online detection device for metal heat treatment according to claim 1, characterized in that: An air filter (8) is connected to the input end of the fan (9).
8. The online detection device for metal heat treatment according to claim 1, characterized in that: The distance between the delivery pipe (15) and the moving ring (4) is greater than the width of the industrial camera (5).