Online hot-rolled steel plate length detection device
Through the online hot-rolled steel plate length detection device, using a line laser marker and a visual camera, fast and accurate detection of steel plate length under high temperature is achieved, solving the problems of dangerous and high cost of manual measurement in high temperature environment, and providing a low-cost and accurate detection solution.
Patent Information
- Application Number
- CN202423121321.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-12-18
AI Technical Summary
In the existing technology, the length detection of hot-rolled steel plates has the problems of dangerous and costly manual measurement in high-temperature environments, and conventional visual cameras are difficult to adapt to high-temperature rolling environments.
An online hot-rolled steel plate length detection device is used, including a positioning device, a linear module and a data processing device. It uses a line laser marker and a visual camera, moves vertically up and down through a lifting structure, and combines a laser displacement sensor and PLC to perform precise length measurement, eliminating manual measurement.
It realizes fast and accurate steel plate length detection at high temperature, reduces labor costs, improves measurement accuracy, and has an error of less than 5 mm. It also requires less equipment investment and is easy to maintain.
Smart Images
Figure CN223449173U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to steel sheet production equipment technical field, concretely relates to a kind of online hot-rolled steel plate length detection device. BACKGROUND
[0002] Plate needs to be detected in the process of rolling the length of plate, so as to determine whether plate meets the rolling requirement. The plate to be detected is conveyed to the roller way, and then the length of plate is measured and checked by two workers through tape measure, and two workers need to climb to the roller way to pull open the tape measure to measure the both ends of plate. Since it is hot-rolled plate, the temperature of plate is as high as 920 DEG C, workers are at risk of falling injury and scalding, and labor cost is wasted.
[0003] Although there is currently visual measurement technology, conventional vision camera is difficult to overcome high-temperature rolling environment, and special equipment requires high investment and is difficult to maintain.
[0004] Therefore, an online hot-rolled steel plate length detection device is needed to solve the problem of inconvenient length detection of hot-rolled plate. SUMMARY
[0005] The utility model provides a kind of online hot-rolled steel plate length detection device to solve the problem of inconvenient length detection of hot-rolled plate in view of the deficiency in the prior art.
[0006] To achieve the above object, the utility model adopts the following technical solutions:
[0007] An online hot-rolled steel plate length detection device, characterized in that it comprises a positioning device, a linear module and a data processing device, the positioning device comprises a lifting structure, a line laser crossline and a vision camera, the upper ends of the lifting structure are respectively connected with the line laser crossline and the vision camera, and the lifting structure is used to drive the line laser crossline and the vision camera to move up and down in the vertical direction; the positioning device is provided with two, which are positioning device A and positioning device B; the positioning device A and the positioning device B are arranged on the same side of the roller way along the moving direction of the roller way; the lower end of the positioning device A is installed on the moving end of the linear module, and the linear module is used to drive the moving end to drive the positioning device A to move close to or away from the positioning device B; and the data processing device is used to measure the distance between the positioning device A and the positioning device B.
[0008] To optimize the above technical solutions, the specific measures taken also include:
[0009] Further, the lifting structure comprises a lifting cylinder and a telescopic rod, the lifting cylinder is used to drive the telescopic rod to extend and retract up and down, and the upper end of the telescopic rod is connected with the line laser crossline and the vision camera.
[0010] Further, the upper end of the lifting structure is connected with the line laser marker and the visual camera through a support, the support is a structure with a side section in the shape of a Chinese character 'fang', the opening of the Chinese character 'fang' structure faces the roller way, and the support of the Chinese character 'fang' structure comprises two vertical mounting platforms, and the line laser marker and the visual camera are mounted on different mounting platforms respectively.
[0011] Further, the line laser marker is mounted above the visual camera.
[0012] Further, the positioning device A is fixed on a guide rail sliding table A of the linear module as a moving end, the guide rail sliding table A is threadedly arranged on a driving screw, and the driving screw is driven to rotate through a servo motor.
[0013] Further, the positioning device B is fixed on a guide rail sliding table B, the guide rail sliding table B is slidably arranged on a linear guide rail, and the linear guide rail is arranged on the side of the roller way.
[0014] Further, the data processing device comprises a laser displacement sensor and a measuring plate, the measuring plate is arranged on the positioning device A, and the laser displacement sensor is arranged on the positioning device B.
[0015] Further, the data processing device further comprises a PLC and a host computer, the laser displacement sensor is electrically connected with the PLC, the PLC is used for reading the distance between the positioning device A and the positioning device B measured by the laser displacement sensor, the PLC is electrically connected with the host computer, and the host computer is used for displaying and recording data.
[0016] Further, the laser emitted by the line laser marker is perpendicular to the movement direction of the linear module.
[0017] Further, the lasers emitted by the two line laser markers on the positioning device A and the positioning device B are parallel.
[0018] The utility model discloses the beneficial effect is:
[0019] The utility model discloses a positioning device A and positioning device B's setting, cooperation linear module and data processing device, when the one end of hot-rolled steel sheet moves to the positioning device B, utilize linear module drive positioning device A to the other end of hot-rolled steel sheet, can utilize data processing device online real -time measurement confirmation the interval between positioning device A and positioning device B, that is, confirm hot-rolled steel sheet length, simultaneously, through the structure setting of positioning device itself, utilize linear laser line marker to carry out position line, utilize visual camera cooperation to observe and confirm the position of linear laser line marker, thereby can accurately obtain hot-rolled steel sheet length.
[0020] The utility model provides a kind of online hot-rolled steel plate length detection device, which can quickly and accurately detect the length of high-temperature plate, and can also eliminate the hard labor of manual measurement by workers, with low cost and convenient maintenance. The utility model has a simple structure, is easy to maintain, and requires less equipment investment, eliminating the hard labor of manual measurement by workers in high temperature. The measurement accuracy is high, with an error of less than 5mm, fully meeting the use requirements. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 The utility model provides a kind of online hot-rolled steel plate length detection device's structure front view;
[0022] Figure 2 The utility model provides a kind of online hot-rolled steel plate length detection device's structure side view;
[0023] Figure 3 The utility model provides a kind of online hot-rolled steel plate length detection device's structure plan view.
[0024] Reference signs: 1. support, 2. positioning device A, 3. telescopic rod, 4. lifting cylinder, 5. measuring plate, 6. guide rail sliding table A, 7. linear module, 8. linear laser line marker, 9. visual camera, 10. positioning device B, 11. servo motor, 12. laser displacement sensor, 13. guide rail sliding table B, 14. linear guide rail. DETAILED DESCRIPTION
[0025] The utility model will be described in detail below with reference to the drawings.
[0026] As shown in the accompanying drawings Figure 1The utility model discloses a kind of online hot-rolled steel plate length detection devices shown, including positioning device, linear module 7 and data processing device, positioning device includes lifting structure, line laser crossline 8 and visual camera 9, the upper end of lifting structure is connected with line laser crossline 8 and visual camera 9 respectively, lifting structure is used to drive line laser crossline 8 and visual camera 9 move up and down in vertical direction, positioning device is equipped with two, and positioning device A2 and positioning device B10 are respectively, positioning device A2 and positioning device B10 are arranged on the same side of roll way along roll way moving direction, the lower end of positioning device A2 is installed in the moving end of linear module 7, linear module 7 is used to drive moving end to drive positioning device A2 to move close to or away from positioning device B10, data processing device is used to measure the interval between positioning device A2 and positioning device B10.
[0027] The utility model discloses a kind of online hot-rolled steel plate length detection devices shown, including positioning device, linear module 7 and data processing device, positioning device includes lifting structure, line laser crossline 8 and visual camera 9, the upper end of lifting structure is connected with line laser crossline 8 and visual camera 9 respectively, lifting structure is used to drive line laser crossline 8 and visual camera 9 move up and down in vertical direction, positioning device is equipped with two, and positioning device A2 and positioning device B10 are respectively, positioning device A2 and positioning device B10 are arranged on the same side of roll way along roll way moving direction, the lower end of positioning device A2 is installed in the moving end of linear module 7, linear module 7 is used to drive moving end to drive positioning device A2 to move close to or away from positioning device B10, data processing device is used to measure the interval between positioning device A2 and positioning device B10.
[0028] The utility model provides a kind of online hot-rolled steel plate length detection device, which can quickly and accurately detect the length of high-temperature plate, and can also eliminate the hard work of manual measurement by workers, with low cost and convenient maintenance. The utility model has a simple structure, easy maintenance, and low equipment investment, eliminating the hard work of manual measurement by workers in high temperature. The measurement accuracy is high, with an error of less than 5mm, fully meeting the use requirements.
[0029] In the further embodiments based on the above, the lifting structure includes a lifting cylinder 4 and a telescopic rod 3. The lifting cylinder 4 is used to drive the telescopic rod 3 to extend and retract up and down. The upper end of the telescopic rod 3 is connected to the line laser crossline 8 and the visual camera 9. In this way, the telescopic rod 3 can be adjusted by the lifting cylinder 4 to extend and retract up and down.
[0030] As shown in the accompanying Figure 2As shown, in another specific embodiment based on the above, the upper end of the lifting structure is connected with the line laser marker 8 and the visual camera 9 through the support 1 respectively, the support 1 is a structure with a "H" shaped side section, and the opening of the "H" shaped structure faces the roller way, the support 1 of the "H" shaped structure includes two vertical mounting platforms, and the line laser marker 8 and the visual camera 9 are mounted on different mounting platforms respectively. In this way, the installation of the line laser marker 8 and the visual camera 9 can be conveniently performed, and meanwhile, the observation line of sight of the line laser marker 8 and the visual camera 9 is not affected.
[0031] In another specific embodiment based on the above, the line laser marker 8 is installed above the visual camera 9. In this way, a better measurement field of view of the line laser marker 8 can be provided.
[0032] In another specific embodiment based on the above, the positioning device A2 is fixed on the guide rail sliding table A6 of the linear module 7 as a moving end, the guide rail sliding table A6 is threadedly arranged on a driving screw, and the driving screw is driven to rotate by the servo motor 11. In this way, the driving screw is driven to rotate by the servo motor 11, and the positioning device A2 is driven to move along the movement direction of the roller way to approach or move away from the positioning device B10. In this embodiment, the linear module 7 is installed to be parallel to the roller way base, so as to ensure the positioning and detection accuracy of the device.
[0033] In another specific embodiment based on the above, the linear guide rail 14 and the guide rail sliding table B13 are further included, the lower end of the positioning device B10 is fixed on the guide rail sliding table B13, the guide rail sliding table B13 is slidably or limitingly arranged on the linear guide rail 14, the linear guide rail 14 is arranged on the side of the roller way, and the positioning device B10 can move along the linear guide rail 14 to approach or move away from the positioning device A2. In this way, in use, the use position of the positioning device B10 can be finely adjusted as needed through the arrangement of the linear guide rail 14 and the guide rail sliding table B13, so as to increase the convenience of adjustment and the measurement accuracy in use.
[0034] In another specific embodiment based on the above, the data processing device includes the laser displacement sensor 12 and the measurement plate 5, the measurement plate 5 is mounted on the positioning device A2, and the laser displacement sensor 12 is mounted on the positioning device B10, and the laser displacement sensor 12 is used to measure the distance between the measurement plate 5. In this embodiment, the measurement plate 5 can be mounted on the guide rail sliding table A6 for mounting the positioning device A2, and the laser displacement sensor 12 can be mounted on the guide rail sliding table B13 for mounting the positioning device B10.
[0035] In the further specific embodiment based on the above, the data processing device further comprises a PLC and an upper computer, the laser displacement sensor 12 is electrically connected with the PLC, the PLC is used for reading the distance between the positioning device A2 and the positioning device B10 measured by the laser displacement sensor 12, and the PLC is electrically connected with the upper computer, and the upper computer is used for displaying and recording data. In use, the positioning device A2 is moved by the linear module 7 and cooperates with the data processing device to measure the plate, the distance measured by the laser displacement sensor 12 is displayed on the upper computer through the PLC data processing, so that the length of the plate is detected.
[0036] In another specific embodiment based on the above, the laser emitted by the line laser marker 8 is perpendicular to the movement direction of the linear module 7, and the lasers emitted by the two line laser markers 8 on the positioning device A2 and the positioning device B10 are parallel, so as to ensure the positioning accuracy of the device.
[0037] In the above embodiment, each part and the related sensor can be provided with a protective cover as required, and can also be cooled by direct blowing of an air pipe as required.
[0038] In use, the positioning device A2 and the positioning device B10 are arranged beside the roller, the positioning device A2 is fixed on the linear module 7 and can be driven to move, and the positioning device B10 is arranged on the linear guide rail 14 and the guide rail sliding table B13 and can be manually fine-adjusted to use the position, so that the measurement accuracy and the convenience of adjustment are improved. Only one worker is needed to operate in the whole detection process, and the plate can be detected without climbing the roller. Compared with the existing high-temperature measurement technology, the cost is low, the device has a simple structure and low maintenance cost, the on-site working environment of the rolling personnel is improved, the labor cost is reduced, the safety hidden danger is solved, and the product yield is improved.
[0039] Based on the above embodiment, an operation box capable of controlling the forward and reverse rotation of the servo motor 11 and transmitting data can be arranged on the rolling mill operation platform, the operation box is provided with a touch screen, a motor starting button, a motor stopping button, an advance button, a retreat button, a data sending button and the like, the distance traveled by the measuring device can be set on the touch screen, the positioning device A2 can be moved to a specified distance and then stopped by pressing the starting button, the positioning device A2 can be stopped by pressing the motor stopping button, the positioning device A2 can be advanced by pressing the advance button, the positioning device A2 can be retreated by pressing the retreat button, and the data collected by the data processing device can be transmitted to the upper computer for recording and the positioning device A2 can be retreated to the position set on the touch screen by pressing the data sending button.
[0040] As shown in FIG. 8, the linear module 7 is provided with a linear guide rail 14 and a guide rail sliding table B13, the linear guide rail 14 is arranged on the linear module 7, the guide rail sliding table B13 is arranged on the linear guide rail 14, and the positioning device B10 is arranged on the guide rail sliding table B13. Figure 3As shown, the device can be installed on the side of the roller table after the main rolling mill and before the leveling mill when in use. The main rolling mill is used to make the slab into plate. Before the rolling starts, the length of the plate to be rolled is input into the touch screen. The positioning device A2 is driven to the position of the length of the plate to be rolled by pressing the start button on the operation platform. After the rolling is completed, the rolling mill operator observes the position of the line laser marker 8 marked by the visual camera 9, so that the starting section of the plate measurement coincides with the position of the line laser marker 8 marked on the positioning device B10. The on-site worker can manually fine-tune the position of the positioning device B10 to reduce errors. After completion, the rolling mill operator can observe whether the rolling length requirement is met by the visual camera 9 of the positioning device A2, or directly drive the positioning device A2 and confirm according to the data displayed on the upper computer. If the requirement is met, the next process is entered. If the requirement is not met, the plate measurement end position is moved by pressing the forward button or the backward button on the operation platform. The actual length of the plate is measured. The data is transmitted to the upper computer by pressing the data recording button. At the same time, the positioning device A2 moves back to the position of the plate to be rolled, preparing for the next detection.
[0041] It should be noted that the terms such as "upper", "lower", "left", "right", "front", "back" and the like cited in the utility model are only for the convenience of clear description, and are not used to limit the scope of the utility model. The change or adjustment of the relative relationship is also considered as the scope of the utility model without substantial change of the technical content.
[0042] The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited to the above-mentioned embodiments. Any technical solution belonging to the idea of the utility model is within the protection scope of the utility model. It should be noted that some improvements and decorations without departing from the principle of the utility model are considered as the protection scope of the utility model.
Claims
1. An online hot-rolled steel plate length detection device, characterized in that: It includes a positioning device, a linear module (7) and a data processing device. The positioning device includes a lifting structure, a line laser marking device (8) and a vision camera (9). The upper end of the lifting structure is respectively connected to the line laser marking device (8) and the vision camera (9). The lifting structure is used to drive the line laser marking device (8) and the vision camera (9) to move up and down vertically. There are two positioning devices, namely positioning device A (2) and positioning device B (10). The positioning device A (2) and the positioning device B (10) are arranged on the same side of the roller path along the moving direction of the roller path. The lower end of the positioning device A (2) is installed on the moving end of the linear module (7). The linear module (7) is used to drive the moving end to带动 the positioning device A (2) to move closer to or away from the positioning device B (10). The data processing device is used to measure the distance between the positioning device A (2) and the positioning device B (10).
2. The online hot-rolled steel plate length detection device according to claim 1, characterized in that: The lifting structure includes a lifting cylinder (4) and a telescopic rod (3). The lifting cylinder (4) is used to drive the telescopic rod (3) to stretch up and down. The upper end of the telescopic rod (3) is connected to the line laser marking device (8) and the vision camera (9).
3. The online hot-rolled steel plate length detection device according to claim 1, characterized in that: The upper end of the lifting structure is respectively connected to the line laser marking device (8) and the vision camera (9) through a bracket (1). The bracket (1) is a structure with a "匚"-shaped side cross-section, and the opening of the "匚"-shaped structure faces the roller path. The "匚"-shaped bracket (1) includes two vertical mounting platforms, and the line laser marking device (8) and the vision camera (9) are respectively installed on different mounting platforms.
4. The online hot-rolled steel plate length detection device according to claim 1, characterized in that: The line laser marking device (8) is installed above the vision camera (9).
5. The online hot-rolled steel plate length detection device according to claim 1, characterized in that: The positioning device A (2) is fixed on the guide rail slide A (6) which is the moving end of the linear module (7). The guide rail slide A (6) is threadedly arranged on the driving screw, and the driving screw is driven to rotate by a servo motor (11).
6. The online hot-rolled steel plate length detection device according to claim 1, characterized in that: It also includes a linear guide rail (14) and a guide rail slide B (13). The lower end of the positioning device B (10) is fixed on the guide rail slide B (13). The guide rail slide B (13) is slidably or limitedly arranged on the linear guide rail (14). The linear guide rail (14) is arranged on the side of the roller path, and the positioning device B (10) can move closer to or away from the positioning device A (2) along the linear guide rail (14).
7. The online hot-rolled steel plate length detection device according to claim 1, characterized in that: The data processing device includes a laser displacement sensor (12) and a measuring plate (5). The measuring plate (5) is installed on the positioning device A (2), and the laser displacement sensor (12) is installed on the positioning device B (10). The laser displacement sensor (12) is used to measure the distance from the measuring plate (5).
8. The online hot-rolled steel plate length detection device according to claim 7, characterized in that: The data processing device also includes a PLC and a host computer. The laser displacement sensor (12) is electrically connected to the PLC. The PLC is used to read the distance between the positioning device A (2) and the positioning device B (10) measured by the laser displacement sensor (I2). The PLC is electrically connected to the host computer, and the host computer is used to display and record data.
9. The online hot-rolled steel plate length detection device according to claim 1, characterized in that: The laser emitted by the line laser marking device (8) is perpendicular to the moving direction of the linear module (7).
10. The online hot-rolled steel plate length detection device according to claim 1, characterized in that: The lasers emitted by the two line laser markers (8) on the positioning device A (2) and the positioning device B (10) are parallel.