Strip steel surface through hole detection device
By designing a through-hole detection device on the surface of the strip and using a combination of infrared ranging sensors and light sensors, the problem of the inability to accurately confirm the location of holes in the existing technology was solved, accurate detection and marking of holes were achieved, and repair efficiency was improved.
Patent Information
- Application Number
- CN202422556247.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-23
AI Technical Summary
Existing technologies are unable to accurately confirm the location of holes on the strip surface, making subsequent repairs difficult.
A through-hole detection device for strip surface is designed, which includes a detection part, a distance adjustment part, a marking part and a light-emitting part. It uses a combination of infrared ranging sensor and light sensor to accurately detect the hole position, and uses the marking part to mark the hole position on the strip.
It achieves accurate detection and marking of holes on the strip surface, improves repair efficiency, and ensures the accuracy and convenience of detection results.
Smart Images
Figure CN223308401U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a detection device, in particular to a device capable of detecting whether a through hole exists on the surface of a steel strip, and belongs to the technical field of steel strip defect detection equipment. Background Art
[0002] Strip steel is a narrow and long steel plate produced by various steel rolling enterprises to meet the needs of industrial production of various metal or mechanical products in different industrial sectors. It is widely used in the field of production and processing. In order to ensure the quality of the strip steel at the factory, the uncoiled strip steel is inspected on the conveyor roller before it is coiled and packaged to confirm whether there are any hole defects on it. The purpose of the detection method for strip steel holes is to set lamps under the conveyor roller and then set light sensors above the conveyor roller to judge whether the strip steel has holes by the presence or absence of light signals. However, this method cannot accurately confirm the exact position of the holes on the strip steel, but can only know that there are holes on the strip steel, which brings difficulties to subsequent inspection and repair. Therefore, a detection device is needed, which is required to accurately confirm the position of the holes and mark the hole positions, so as to facilitate subsequent repair and inspection. Utility Model Content
[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a device for detecting through holes on the surface of a steel strip, which can efficiently detect whether the steel strip has holes and mark the holes.
[0004] The problem described in the present invention is solved by the following technical solutions:
[0005] A device for detecting through holes on the surface of a strip steel comprises a detection part, a light-emitting component, a distance-adjusting component, a beam and a marking component; both ends of the beam are set on the ground through brackets, and the beam is suspended directly above a conveyor roller, with the length direction line of the beam and the transport direction line of the conveyor roller being perpendicular to each other; the distance-adjusting component is set on the end face of the beam close to the head end of the conveyor roller, and the detection part is set on the distance-adjusting component; the marking part is set on the end face of the beam away from the end end of the conveyor roller; the light-emitting component is set below the conveyor roller, and is located directly below the detection part.
[0006] The above-mentioned strip surface through-hole detection device, the distance adjustment part includes a fixed horizontal plate, a lifting horizontal plate, a guide plate, a first electric cylinder, an extension plate, a first infrared distance sensor and then a second infrared distance sensor; the fixed horizontal plate is arranged on the end face of the beam close to the head end of the conveying roller through a bracket, and the length direction line of the fixed horizontal plate is parallel to the length direction line of the beam; guide plates are provided at both ends of the upper end face of the lifting horizontal plate, and guide holes are respectively provided at both ends of the fixed horizontal plate, and a guide plate is passed through each guide hole; the lifting horizontal plate is located directly below the fixed horizontal plate; the first electric cylinder is arranged at the center of the top end face of the fixed horizontal plate, and the end of its piston rod passes through the fixed horizontal plate and is connected to the center of the upper end face of the lifting horizontal plate; the extension plate is arranged on the end face of the fixed horizontal plate close to the head end of the conveying roller, and the length direction line of the extension plate is perpendicular to the length direction line of the fixed horizontal plate; the first infrared distance sensor is provided at the end of the lower end face of the extension plate away from the fixed horizontal plate; the second infrared distance sensor is provided at the lower end face of the fixed horizontal plate; the signal output ends of the first infrared distance sensor and the second infrared distance sensor are connected to the signal input ends of the CPU.
[0007] The above-mentioned strip surface through-hole detection device, the detection part includes a plurality of detection mechanisms, and each detection mechanism is arranged equidistantly along the length direction of the lifting horizontal plate and is arranged on the lower end surface of the lifting horizontal plate.
[0008] The above-mentioned strip surface through-hole detection device, the detection mechanism includes a square light-shielding tube and a light sensor; the square light-shielding tube is arranged on the lower end surface of the lifting horizontal plate, and the light sensor is arranged on the top of the inner wall of the square light-shielding tube; the signal output end of the light sensor is connected to the signal input end of the CPU; a light-blocking brush is arranged between two adjacent square light-shielding tubes.
[0009] The above-mentioned strip surface through-hole detection device, the marking part includes a horizontal rod and a marking mechanism; the horizontal rod is arranged on the end face of the fixed cross plate away from the head end of the conveying roller, and the length direction of the horizontal rod is parallel to the length direction of the fixed cross plate; the number of the marking mechanisms is consistent with the number of the detection mechanisms; the various marking mechanisms are arranged on the horizontal rod at equal distances along the length direction of the horizontal rod, and each marking mechanism is aligned with the detection mechanism position corresponding to its position.
[0010] The above-mentioned strip surface through-hole detection device, the marking mechanism includes a fixed block, a lifting block, a guide rod, a second electric cylinder, a spring, a motor, a rotary rod and a marking pen; the fixed block is arranged on the side wall of the horizontal rod; the second electric cylinder housing is arranged on the top surface of the fixed block; the four corners of the upper end surface of the lifting block are provided with guide rods, the four corners of the fixed block are provided with guide holes, and each guide hole is penetrated by a guide rod; the second electric cylinder piston rod passes through the fixed block, and a spring is connected between the end of the second electric cylinder piston rod and the top surface of the lifting block; the motor is arranged at the center of the lower end surface of the lifting block, and a rotary rod is provided on the motor output shaft, and marking pens are provided at both ends of the lower end surface of the rotary rod.
[0011] The utility model detects whether there is a leak on the strip through the monitoring part and confirms the position of the leak. The marking part marks the position of the leak, which makes it convenient for subsequent staff to repair the leak. The distance adjustment part ensures that the detection part is as close to the strip as possible, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the first three-dimensional structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the second three-dimensional structure of the utility model;
[0014] Figure 3 It is a partial enlarged structural schematic diagram of the utility model A.
[0015] The list of numbers in the figure is: 1. Light-emitting part, 2. Conveyor roller, 3. Crossbeam, 4. Fixed cross plate, 5. Lifting cross plate, 6. Guide plate, 7. First electric cylinder, 8. Extension plate, 9. Square light-shielding tube, 10. Horizontal rod, 11. Fixed block, 12. Lifting block, 13. Guide rod, 14. Second electric cylinder, 15. Spring, 16. Motor, 17. Rotary rod, 18. Marking pen. DETAILED DESCRIPTION
[0016] See Figure 1 、 2 and Figure 3The utility model includes a detection part, a light-emitting part 1, a distance-adjusting part, a beam 3 and a marking part; both ends of the beam 3 are set on the ground through brackets, and the beam 3 is suspended directly above the conveying roller 2, and the length direction line of the beam 3 is perpendicular to the transportation direction line of the conveying roller 2; the distance-adjusting part is set on the end surface of the beam 3 close to the head end of the conveying roller 2, and the detection part is set on the distance-adjusting part; the distance-adjusting part is used to adjust the height of the detection part to ensure that the detection part is as close to the strip as possible without contacting the strip, thereby ensuring the accuracy of the detection result; the marking part is set on the end surface of the beam 3 away from the end of the conveying roller 2; the marking part marks the leak detected by the detection part, thereby facilitating subsequent repairs by the staff; the light-emitting part 1 is set below the conveying roller 2, and it is located directly below the detection part; if a leak occurs somewhere in the strip, the light emitted by the light-emitting part 1 enters the detection part from the leak.
[0017] The distance adjusting part includes a fixed cross plate 4, a lifting cross plate 5, a guide plate 6, a first electric cylinder 7, an extension plate 8, a first infrared distance measuring sensor and a second infrared distance measuring sensor; the fixed cross plate 4 is arranged on the end surface of the beam 3 close to the head end of the conveying roller 2 through a bracket, and the length direction line of the fixed cross plate 4 is parallel to the length direction line of the beam 3; guide plates 6 are provided at both ends of the upper end surface of the lifting cross plate 5, and guide holes are respectively provided at both ends of the fixed cross plate 4, and a guide plate 6 is passed through each guide hole; the guide plate 6 provides a guiding effect for the lifting and lowering of the lifting cross plate 5; ensuring that the lifting cross plate 5 can be lifted and lowered reliably; the lifting cross plate 5 is located directly below the fixed cross plate 4; the first electric cylinder 7 is arranged at the center of the top surface of the fixed cross plate 4, and the end of its piston rod passes through the fixed cross plate 4 and is connected to the center of the upper end surface of the lifting cross plate 5; the first electric cylinder 7 drives the lifting cross plate 5 to rise and fall vertically, thereby adjusting the lifting cross plate and the detection mechanism. height; ensure that a suitable distance is maintained between the detection mechanism and the strip; the extension plate 8 is arranged on the end face of the fixed horizontal plate 4 close to the head end of the conveying roller 2, and the length direction line of the extension plate 8 is perpendicular to the length direction line of the fixed horizontal plate 4; a first infrared ranging sensor is provided at one end of the lower end face of the extension plate 8 away from the fixed horizontal plate 4; the first infrared ranging sensor can know the relative distance between it and the strip, and then cooperate with the second infrared ranging sensor to adjust the height of the lifting horizontal plate 5; a second infrared ranging sensor is provided on the lower end face of the fixed horizontal plate 4; the second infrared ranging sensor can monitor the height of the horizontal plate in real time, and then know the height of the detection mechanism, and finally adjust the distance between the detection mechanism and the strip to ensure that the distance between the detection mechanism and the strip is within a reasonable range to avoid collision; the signal output ends of the first infrared ranging sensor and the second infrared ranging sensor are connected to the signal input end of the CPU.
[0018] The detection part includes a plurality of detection mechanisms, and each detection mechanism is arranged at equal intervals along the length direction of the lifting horizontal plate 5 and is arranged on the lower end surface of the lifting horizontal plate 5 .
[0019] The detection mechanism includes a square light-shielding tube 9 and a light sensor; the square light-shielding tube 9 is arranged on the lower end surface of the lifting horizontal plate 5, and the light sensor is arranged at the top of the inner wall of the square light-shielding tube 9; the signal output end of the light sensor is connected to the signal input end of the CPU; a light-blocking brush is arranged between two adjacent square light-shielding tubes 9; the light passing through the leak hole in the strip enters the square light-shielding tube 9 and is sensed by the light sensor, thereby knowing the relative position of the leak hole, and then the marking mechanism corresponding to the position of this square light-shielding tube 9 is actuated to mark the leak hole.
[0020] The marking part includes a horizontal rod 10 and a marking mechanism; the horizontal rod 10 is arranged on the end face of the fixed cross plate 4 away from the head end of the conveying roller 2, and the length direction of the horizontal rod 10 is parallel to the length direction of the fixed cross plate 4; the number of the marking mechanisms is consistent with the number of the detection mechanisms; the various marking mechanisms are arranged equidistantly along the length direction of the horizontal rod 10 on the horizontal rod 10, and each marking mechanism is aligned with the detection mechanism position corresponding to its position; when light is sensed in a specific square light-shielding tube 9, it indicates that there is a leak hole directly below it, and then the marking mechanism corresponding to the position of this square light-shielding tube 9 is actuated to mark the leak hole.
[0021] The marking mechanism includes a fixed block 11, a lifting block 12, a guide rod 13, a second electric cylinder 14, a spring 15, a motor 16, a rotary rod 17 and a marking pen 18; the fixed block 11 is arranged on the side wall of the horizontal rod 10; the housing of the second electric cylinder 14 is arranged on the top surface of the fixed block 11; the four corners of the upper end surface of the lifting block 12 are provided with guide rods 13, the four corners of the fixed block 11 are provided with guide holes, and each guide hole is penetrated by a guide rod 13; the guide rod 13 provides a guiding effect for the lifting of the lifting block 12; the piston rod of the second electric cylinder 14 passes through the fixed block 11, and the second A spring 15 is connected between the end of the piston rod of the electric cylinder 14 and the top surface of the lifting block 12; the second electric cylinder 13 drives the lifting block 12 to rise and fall vertically, and the function of the spring is that when the marking pen 18 touches the strip, the spring can play a buffering role; the motor 16 is arranged at the center of the lower end surface of the lifting block 12, and a rotary rod 17 is provided on the output shaft of the motor 16, and marking pens 18 are provided at both ends of the lower end surface of the rotary rod 17; the motor 16 can drive the rotary rod 17 to rotate, and the rotating rotary rod 17 drives the marking pen 18 to leave a mark on the leak hole on the strip, which makes it easier for subsequent staff to find the location of the leak hole.
[0022] The model of the CPU module in this utility model is 87C196KC.
[0023] Principle of use: Under normal use, when all the light sensors in the square light-shielding tubes 9 sense light, it means that no strip steel is passing through at this time. Only when more than half of the light sensors are blocked, the marking part will move. During the passage of the strip steel, if there is a hole somewhere in the strip steel, the light of the light-emitting component 1 will be emitted from the hole in the strip steel into the square light-shielding tube 9 directly above it. After the light sensor in the square light-shielding tube 9 receives the signal, the marking mechanism corresponding to the position of the square light-shielding tube 9 will be activated, and the second electric cylinder 14 and the motor 16 on the marking mechanism will be activated. The second electric cylinder drives the lifting block to descend, so that the rotating marking pen 18 touches the strip steel and quickly draws a mark. The hole is next to the mark, and then the second electric cylinder is quickly reset, and the motor 16 is turned off. At this point, the hole marking operation is completed.
Claims
1. A device for detecting through-holes on a steel strip surface, characterized in that: The invention comprises a detection part, a light emitting element (1), a distance adjustment part, a beam (3) and a marking part; the two ends of the beam (3) are arranged on the ground through brackets, and the beam (3) is suspended directly above the conveying roller (2), and the length direction line of the beam (3) and the transport direction line of the conveying roller (2) are perpendicular to each other; the distance adjustment part is arranged on the end surface of the beam (3) close to the head end of the conveying roller (2), and the detection part is arranged on the distance adjustment part; the marking part is arranged on the end surface of the beam (3) away from the end end of the conveying roller (2); the light emitting element (1) is arranged below the conveying roller (2) and is located directly below the detection part.
2. The device for detecting through holes on a steel strip surface according to claim 1, wherein: The distance adjustment part comprises a fixed transverse plate (4), a lifting transverse plate (5), a guide plate (6), a first electric cylinder (7), an extension plate (8), a first infrared distance sensor and a second infrared distance sensor; the fixed transverse plate (4) is arranged on the end surface of the beam (3) close to the head end of the conveying roller (2) through a bracket, and the length direction line of the fixed transverse plate (4) is parallel to the length direction line of the beam (3); guide plates (6) are arranged at both ends of the upper end surface of the lifting transverse plate (5), and guide holes are respectively arranged at both ends of the fixed transverse plate (4), and a guide plate (6) is passed through each guide hole; the lifting transverse plate (5) is located directly below the fixed transverse plate (4); the first An electric cylinder (7) is arranged at the center of the top end surface of the fixed horizontal plate (4), and the end of its piston rod passes through the fixed horizontal plate (4) and is connected to the center of the upper end surface of the lifting horizontal plate (5); the extension plate (8) is arranged on the end surface of the fixed horizontal plate (4) close to the head end of the conveying roller (2), and the length direction line of the extension plate (8) is perpendicular to the length direction line of the fixed horizontal plate (4); a first infrared distance sensor is arranged at the end of the lower end surface of the extension plate (8) away from the fixed horizontal plate (4); a second infrared distance sensor is arranged at the lower end surface of the fixed horizontal plate (4); and the signal output ends of the first infrared distance sensor and the second infrared distance sensor are connected to the signal input end of the CPU.
3. The device for detecting through holes on a steel strip surface according to claim 2, wherein: The detection part comprises a plurality of detection mechanisms, and the detection mechanisms are arranged equidistantly along the length direction of the lifting transverse plate (5) and are arranged on the lower end surface of the lifting transverse plate (5).
4. The device for detecting through holes on a steel strip surface according to claim 3, wherein: The detection mechanism comprises a square light-shielding cylinder (9) and a light sensor; the square light-shielding cylinder (9) is arranged on the lower end surface of the lifting horizontal plate (5), and the light sensor is arranged on the top end of the inner wall of the square light-shielding cylinder (9); the signal output end of the light sensor is connected to the signal input end of the CPU; and a light-shielding brush is arranged between two adjacent square light-shielding cylinders (9).
5. The device for detecting through holes on a steel strip surface according to claim 4, characterized in that: The marking portion comprises a horizontal rod (10) and a marking mechanism; the horizontal rod (10) is arranged on the end surface of the fixed transverse plate (4) away from the head end of the conveying roller (2), and the length direction of the horizontal rod (10) is parallel to the length direction of the fixed transverse plate (4); the number of the marking mechanisms is consistent with the number of the detection mechanisms; the respective marking mechanisms are arranged equidistantly along the length direction of the horizontal rod (10) on the horizontal rod (10), and the respective marking mechanisms are aligned with the detection mechanism position corresponding to their position.
6. The device for detecting through holes on a steel strip surface according to claim 5, characterized in that: The marking mechanism comprises a fixed block (11), a lifting block (12), a guide rod (13), a second electric cylinder (14), a spring (15), a motor (16), a rotary rod (17) and a marking pen (18); the fixed block (11) is arranged on the side wall of the horizontal rod (10); the housing of the second electric cylinder (14) is arranged on the top surface of the fixed block (11); the four corners of the upper end surface of the lifting block (12) are each provided with a guide rod (13); the fixed block (11) is provided with a guide rod (13); the upper end surface of the lifting block (12 ... Guide holes are provided at all four corners, and a guide rod (13) is passed through each guide hole; the piston rod of the second electric cylinder (14) passes through the fixed block (11), and a spring (15) is connected between the end of the piston rod of the second electric cylinder (14) and the top surface of the lifting block (12); the motor (16) is provided at the center of the lower end surface of the lifting block (12), and a rotary rod (17) is provided on the output shaft of the motor (16), and marking pens (18) are provided at both ends of the lower end surface of the rotary rod (17).