Automatic detection device for surface defects of steel belt

Abstract

The utility model relates to the field of steel plate detection devices, and discloses a steel belt surface defect automatic detection device which comprises a base, the top of the base is fixedly connected with a first shell, the interior of the first shell is fixedly connected with a laser detection head, the top of the base is fixedly connected with a supporting plate, one side of the supporting plate is fixedly connected with a first cone, and the first cone is fixedly connected with a second cone. The top of the base is fixedly connected with a second shell, and a mounting assembly is arranged in the second shell. And the mounting assembly comprises a second cone, the second cone is slidably connected to the interior of the second shell, and a threaded rod is in threaded connection with the interior of the second shell. The output end of the motor drives the threaded rod to rotate, then the threaded rod drives the second cone to slide in the second shell through the limiting plate, then the second cone is driven to stretch out of the second shell to be embedded into a steel coil to support the steel coil, the effect of facilitating installation of the steel belt roller is achieved, and the problems that the steel belt roller is heavy in mass and prone to damage are solved. Therefore, the convenience of the detection device is improved.

Description

Technical Field

[0001] This utility model relates to the field of steel plate inspection devices, and more particularly to an automatic inspection device for surface defects in steel strips. Background Technology

[0002] With the continuous improvement of industrial manufacturing levels, steel strip, as an important metal material, is widely used in automobile manufacturing, construction engineering, and machining. To ensure the quality of steel strip surfaces and avoid defects affecting subsequent processing and use, steel strip surface defect detection technology has been extensively researched and applied. The introduction of automated detection technology has significantly improved the efficiency and accuracy of steel strip surface defect detection, reduced errors from manual inspection, and increased production efficiency. However, the installation and fixing of steel strip rolls remains a crucial aspect requiring optimization during the steel strip inspection process.

[0003] Existing steel strip surface defect detection devices typically employ detection technologies such as optical imaging, laser scanning, or ultrasonic testing. These devices use high-precision sensors to acquire data from the steel strip surface in real time and analyze the detection signals to identify defects such as cracks, scratches, pits, and bubbles. These devices generally consist of a transmission mechanism, a detection mechanism, and a data processing system. The transmission mechanism transports the steel strip, ensuring the stability of the detection area. The detection mechanism acquires surface information of the steel strip using a high-speed camera or sensors and transmits it to the data processing system for analysis.

[0004] However, in existing technologies, steel strip rolls are relatively heavy, requiring significant manpower to install onto the testing device. Furthermore, tilting or misalignment is prone to occur during installation, leading to instability in the testing device and affecting testing accuracy. Therefore, existing steel strip testing equipment still has room for improvement in terms of the ease of installation of steel strip rolls. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an automatic detection device for steel strip surface defects, which aims to improve the problem that the heavy weight of steel strip rolls makes them inconvenient to install on the detection device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automatic detection device for steel strip surface defects, including a base, a housing 1 fixedly connected to the top of the base, a laser detection head fixedly connected inside the housing 1, a support plate fixedly connected to the top of the base, a cone 1 fixedly connected to one side of the support plate, a housing 2 fixedly connected to the top of the base, and an installation assembly provided inside the housing 2.

[0007] The mounting assembly includes a cone II, which is slidably connected inside a housing II. A threaded rod is threadedly connected inside the housing II. One end of the threaded rod is fixedly connected to a limit plate. The limit plate is rotatably connected inside the cone II. A limit assembly is provided inside the housing II. A drive assembly is provided at one end of the housing II.

[0008] As a further description of the above technical solution:

[0009] The limiting component includes a limiting block, one side of which is fixedly connected to the inside of the housing. A limiting groove is formed inside the cone, and the cone is slidably connected to the outer wall of the limiting block through the limiting groove.

[0010] As a further description of the above technical solution:

[0011] The drive assembly includes a motor, the output end of which is connected to one end of a threaded rod. A telescopic rod is fixedly connected to the outer wall of the motor, and one end of the telescopic rod is fixedly connected to one end of the housing.

[0012] As a further description of the above technical solution:

[0013] The top of the base is rotatably connected to a support rod, and one end of the support rod is fixedly connected to a bracket.

[0014] As a further description of the above technical solution:

[0015] The bracket is internally connected to a limiting roller, and the outer wall of the limiting roller is in contact with the steel strip.

[0016] As a further description of the above technical solution:

[0017] Both the bracket and the top of the base are rotatably connected to a connecting block.

[0018] As a further description of the above technical solution:

[0019] A second telescopic rod is provided between the connecting blocks, and a spring is sleeved on the outer wall of the second telescopic rod.

[0020] As a further description of the above technical solution:

[0021] The telescopic rod and the two ends of the spring are both fixedly connected between the connecting blocks.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the motor output end first drives the threaded rod to rotate, and then the threaded rod drives the cone two to slide inside the housing two through the limiting plate, thereby driving the cone two to extend out from the housing two and embed into the inside of the steel coil to support the steel coil, which achieves the effect of facilitating the installation of the steel strip roller, solving the problem that the steel strip roller is too heavy and inconvenient to install on the testing device, and improving the convenience of the testing device.

[0024] 2. In this utility model, the limiting roller is connected to the base through the support rod at the bottom of the bracket and supported by the tension of the spring, so that the limiting roller can always fit against the outer wall of the steel strip, thereby achieving the effect of limiting the steel strip. This solves the problem of detection deviation caused by inconsistent upper and lower spacing of the steel strip during detection and improves the practicality of the detection device.

[0025] 3. In this utility model, by setting laser detection heads on the upper and lower sides inside the housing, defects on both sides of the steel strip can be detected simultaneously, thereby improving the detection efficiency and solving the problem that traditional detection devices can only detect one side and require repeated detection, thus improving the detection efficiency of the automatic detection device. Attached Figure Description

[0026] Figure 1 This is a perspective view of the automatic detection device for steel strip surface defects proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of the housing of the automatic steel strip surface defect detection device proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the laser detection head structure of the automatic steel strip surface defect detection device proposed in this utility model;

[0029] Figure 4 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0030] Legend:

[0031] 1. Base; 2. Housing 1; 3. Laser detection head; 4. Support plate; 5. Cone 1; 6. Housing 2; 7. Limiting block; 8. Cone 2; 9. Limiting groove; 10. Telescopic rod 1; 11. Motor; 12. Threaded rod; 13. Limiting plate; 14. Support rod; 15. Bracket; 16. Limiting roller; 17. Connecting block; 18. Telescopic rod 2; 19. Spring. 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] Reference Figures 1-3 This utility model provides an embodiment of an automatic steel strip surface defect detection device, including a base 1, a housing 2 fixedly connected to the top of the base 1, and a laser detection head 3 fixedly connected inside the housing 2. The laser detection head 3 is used to scan steel strip surface defects, improving the accuracy and reliability of the detection. The laser detection head emits a high-precision laser beam to irradiate the steel strip surface and uses the change in reflected light to detect surface defects, such as the Keyence LJ-V7000 series, whose laser sensor accurately measures the surface height change and identifies defects such as cracks and pits. A support plate 4 is fixedly connected to the top of the base 1, and a cone 5 is fixedly connected to one side of the support plate 4. The cone 5 is used to support and fix the steel strip roll, ensuring that the steel strip unfolds stably and enters the detection area. A housing 6 is fixedly connected to the top of the base 1, and an installation component is provided inside the housing 6. The installation component is used to conveniently install and fix the steel strip roll, improving the ease of operation of the device.

[0034] The mounting assembly includes a cone 8, which is slidably connected inside a housing 6. The cone 8 extends from inside the housing 6 and embeds into the center of the steel strip roll to support and fix it. A threaded rod 12 is threadedly connected inside the housing 6, driving the cone 8 to extend and retract to accommodate steel strip rolls of different sizes. A limit plate 13 is fixedly connected to one end of the threaded rod 12, limiting its axial movement to ensure stable sliding of the cone 8. The limit plate 13 is rotatably connected inside the cone 8. A limit assembly is provided inside the housing 6 to guide and stabilize the movement trajectory of the cone 8, preventing deviation. A drive assembly is provided at one end of the housing 6 to provide power, rotating the threaded rod 12 and thus pushing the cone 8 to extend and retract within the housing 6. The limit assembly includes a limit block 7. The limiting block 7 is fixedly connected to the inside of the housing 6 on one side. The limiting block 7 is used to limit the sliding range of the cone 8 and ensure that it moves along a predetermined path. The cone 8 has a limiting groove 9 inside. The limiting groove 9 is used to cooperate with the limiting block 7 to guide the cone 8 to perform stable linear motion. The cone 8 is slidably connected to the outer wall of the limiting block 7 through the limiting groove 9 to ensure that it will not rotate or deviate. The drive assembly includes a motor 11. The motor 11 is used to provide rotational power to drive the threaded rod 12 to rotate, thereby realizing the telescopic adjustment of the cone 8. The output end of the motor 11 is connected to one end of the threaded rod 12. A telescopic rod 10 is fixedly connected to the outer wall of the motor 11. The telescopic rod 10 is used to support the motor 11 and ensure its stable operation. One end of the telescopic rod 10 is fixedly connected to one end of the housing 6 to provide additional stability and prevent the motor 11 from vibrating during operation and affecting the detection accuracy.

[0035] Reference Figure 1 and Figure 4A support rod 14 is rotatably connected to the top of the base 1. The support rod 14 is used to support and adjust the position of the limiting roller 16 to accommodate steel strips of different widths. A bracket 15 is fixedly connected to one end of the support rod 14. The bracket 15 is used to install the limiting roller 16 and provide stable support to ensure that the limiting roller 16 does not shake during operation. The limiting roller 16 is rotatably connected inside the bracket 15. The limiting roller 16 is used to limit the steel strip to keep it running along a predetermined trajectory during the inspection process, avoiding deviation that affects the inspection accuracy. The outer wall of the limiting roller 16 is in contact with the steel strip, so that it can effectively guide the steel strip when it moves, improving the stability of the steel strip conveying. A connecting block 17 is rotatably connected to both the bracket 15 and the top of the base 1. The connecting block 17 is used for... The connecting bracket 15 and the base 1 allow the bracket 15 to be angled to accommodate steel strips of different thicknesses, ensuring that the limiting roller 16 always fits against the outer wall of the steel strip. A telescopic rod 18 is provided between the connecting blocks 17. The telescopic rod 18 is used to adjust the angle of the bracket 15 and the position of the limiting roller 16 to accommodate steel strips of different specifications, improving the applicability of the device. A spring 19 is sleeved on the outer wall of the telescopic rod 18. The spring 19 provides elastic support, allowing the limiting roller 16 to adaptively adjust according to the thickness of the steel strip and maintain a stable contact force. Both ends of the telescopic rod 18 and the spring 19 are fixedly connected between the connecting blocks 17, ensuring that the spring 19 always maintains a stable supporting function during operation, improving the reliability and durability of the limiting mechanism.

[0036] Working principle: When using this automatic steel strip surface defect detection device, the steel coil is first placed between cone 5 and cone 8 when installing the steel coil. Then, the output end of motor 11 drives the threaded rod 12 to rotate. The threaded rod 12 then drives cone 8 to slide inside housing 6 through the limiting plate 13. This causes cone 8 to extend out of housing 6 and embed into the inside of the steel coil to support it. The motor 11 and housing 6 are limited by telescopic rod 10, which prevents the motor 11 from rotating with the threaded rod 12, thus facilitating the installation of the steel strip roller. The steel coil is then scanned by laser detection head 3 to detect both sides of the steel strip.

[0037] Subsequently, when the steel strip passes through the housing 1-2, it is limited by the limiting roller 16. The limiting roller 16 is connected to the base 1 through the support rod 14 at the bottom of the bracket 15 and is supported by the tension of the spring 19, so that the limiting roller 16 can always fit against the outer wall of the steel strip. The bracket 15 and the base 1 are limited by the telescopic rod 18, which in turn drives the steel strip to always maintain a certain distance from the laser detection head 3, thus achieving the effect of limiting the steel strip.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic detection device for surface defects of steel strip, comprising a base (1), characterized in that: The base (1) is fixedly connected to the top of the housing (2), and the housing (2) is fixedly connected to the inside of the laser detection head (3). The base (1) is fixedly connected to the top of the support plate (4), and the support plate (4) is fixedly connected to one side of the cone (5). The base (1) is fixedly connected to the top of the housing (6), and the housing (6) is provided with an installation component inside. The mounting assembly includes a second cone (8), which is slidably connected inside a second housing (6). A threaded rod (12) is threaded inside the second housing (6). One end of the threaded rod (12) is fixedly connected to a limiting plate (13). The limiting plate (13) is rotatably connected inside the second cone (8). A limiting component is provided inside the second housing (6). A driving component is provided at one end of the second housing (6).

2. The automatic detection device for steel strip surface defects according to claim 1, characterized in that: The limiting component includes a limiting block (7), one side of which is fixedly connected to the inside of the housing (6). A limiting groove (9) is opened inside the cone (8), and the cone (8) is slidably connected to the outer wall of the limiting block (7) through the limiting groove (9).

3. The automatic detection device for steel strip surface defects according to claim 1, characterized in that: The drive assembly includes a motor (11), the output end of which is connected to one end of a threaded rod (12), and a telescopic rod (10) is fixedly connected to the outer wall of the motor (11), with one end of the telescopic rod (10) fixedly connected to one end of the housing (6).

4. The automatic detection device for steel strip surface defects according to claim 1, characterized in that: The base (1) is rotatably connected to a support rod (14) at its top, and a bracket (15) is fixedly connected to one end of the support rod (14).

5. The automatic detection device for steel strip surface defects according to claim 4, characterized in that: The bracket (15) is rotatably connected to a limiting roller (16), and the outer wall of the limiting roller (16) is in contact with the steel strip.

6. The automatic detection device for steel strip surface defects according to claim 4, characterized in that: The top of both the bracket (15) and the base (1) are rotatably connected to a connecting block (17).

7. The automatic detection device for steel strip surface defects according to claim 6, characterized in that: A telescopic rod two (18) is provided between the connecting blocks (17), and a spring (19) is sleeved on the outer wall of the telescopic rod two (18).

8. The automatic detection device for steel strip surface defects according to claim 7, characterized in that: The telescopic rod (18) and the spring (19) are both fixedly connected between the connecting block (17).

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