Strip surface defect detection equipment

Abstract

The utility model relates to strip surface defect detection equipment which comprises a rack, and a first guide roller, a detection and recognition module, a first limiting module, a marking module, a second limiting module and a transmission module which are sequentially arranged in the length direction of the rack. During use, surface defects of the strip are detected through the detection and recognition module, the positions of the defects on the strip are recognized, then the stability of the strip in the conveying process is ensured through the cooperation of the first limiting module and the second limiting module, and the strip is always located under the marking module in the conveying process; then the modules on the strip are automatically marked through the marking module, finally, automatic conveying of the strip is achieved through the transmission module, the whole detection process is automatic, use is easy and fast, and the problems that an existing manual detection mode is high in omission ratio and large in needed labor cost are solved.

Description

Technical Field

[0001] The present application relates to the technical field of strip surface defect detection, and in particular to a strip surface defect detection device. Background Art

[0002] During the production and processing of strips, due to the influence of many factors such as the execution process, production equipment, and surrounding environment, defects such as scratches, roll marks, pits, and bulges are likely to appear on the strip surface. The surface defects of the strip are the key indicators for evaluating the quality of the strip itself. In order to ensure the quality of the strip, it is usually necessary to detect the surface defects of the strip.

[0003] Currently, the detection of strip surface defects mainly relies on manual operation. This manual detection method usually involves unwinding the strip, and then the staff observes the strip surface and marks the detected defects for subsequent processing. However, the manual detection method has many deficiencies in practical applications: firstly, manual detection is extremely vulnerable to the influence of the environment, the emotions and fatigue of the detection personnel, which easily leads to missed detections during the strip detection process; secondly, the labor cost required for manual detection is relatively high, which is not conducive to the application of large-scale production. Summary of the Utility Model

[0004] In order to solve the problems of high missed detection rate and high labor cost existing in the existing manual detection method, the present application provides a strip surface defect detection device.

[0005] The strip surface defect detection device provided by the present application adopts the following technical solutions:

[0006] A strip surface defect detection device, which includes a frame. Along the length direction of the frame, a first guide roller, a detection and identification module for detecting and identifying the position of strip surface defects, a first limiting module for limiting the conveying position of the strip, a marking module for marking the strip surface defects, a second limiting module for secondarily limiting the conveying position of the strip, and a driving module for driving the strip to move are sequentially arranged. The first guide roller is rotatably connected to the frame.

[0007] By adopting the above technical solution, during use, the strip is unrolled on the rack, and the strip is driven through the drive module. Under the action of the first guide roller, the strip is driven on the rack. At the same time, the detection and identification module detects and identifies the defects and their positions on the surface of the strip, and transmits the position of the defect to the marking module in the form of an electrical signal. Then, through the combined action of the first limiting module and the second limiting module, the strip in transmission is guided and limited to ensure that the strip is subsequently driven to directly below the marking module. After that, the marking module marks the defective part on the surface of the strip, thereby completing the automatic detection and marking of the strip. The overall detection process is simple and fast, reducing the missed detection rate and labor cost, and being more conducive to use.

[0008] Preferably, the detection and identification module includes a detection probe fixed on the rack and a defect identifier installed on the rack. The detection probe is electrically connected to the defect identifier, and the detection probe is located between the first guide roller and the first limiting module.

[0009] By adopting the above technical solution, during use, the detection probe detects and photographs the surface of the strip during transmission, and then the detection probe sends an electrical signal to the defect identifier. The defect identifier receives and processes the electrical signal to identify the position of the defect on the surface of the strip, thereby achieving the purpose of quickly detecting and identifying the defects on the surface of the strip.

[0010] Preferably, the first limiting module includes a first mounting seat fixed on the rack, a second guide roller rotatably mounted on the first mounting seat, and a first abutting roller for abutting against the strip. A first transmission space for driving the strip is formed between the first abutting roller and the second guide roller.

[0011] By adopting the above technical solution, during use, the strip is guided and limited by the second guide roller to ensure that the strip does not deviate during movement, and the surface of the strip is abutted by the first abutting roller to ensure that the strip can be driven normally.

[0012] Preferably, the first mounting seat includes two first vertical plates fixed on the rack and a first slider slidably mounted on the first vertical plates. The two first vertical plates are arranged oppositely. The second guide roller is rotatably connected to the first vertical plates. A first lead screw for adjusting the position of the first slider is provided on the first vertical plates. One end of the first lead screw is rotatably connected to the first slider, the other end of the first lead screw is fixedly connected with a handle, the first lead screw is threadedly connected to the first vertical plates, and the first abutting roller is rotatably mounted on the first slider.

[0013] By adopting the above technical solution, when in use, the first lead screw is rotated by turning the handle. Under the limiting effect of the first vertical plate, the rotation of the first lead screw will cause itself to slide along its own axis direction, thereby driving the first slider to slide, so as to realize the adjustment of the position of the first abutting roller, and further adjust the height of the first conveying space to adapt to strips of different thicknesses.

[0014] Preferably, the marking module includes a laser marking machine installed on the frame, and the laser of the laser marking machine faces the strip.

[0015] By adopting the above technical solution, when in use, the laser marking machine is used to mark the surface defects of the strip, so as to achieve the purpose of marking the surface defects of the strip.

[0016] Preferably, a protective sleeve is installed on the laser of the laser marking machine, and a second conveying space for passing the strip is provided on the protective sleeve.

[0017] By adopting the above technical solution, when in use, by setting the protective sleeve, the marking area of the laser of the laser marking machine is protected, the use safety of the laser marking machine is increased, and at the same time, the influence of the external environment on the use of the laser marking machine is avoided.

[0018] Preferably, the second limiting module includes a second mounting seat fixed on the frame, a third guiding roller rotatably mounted on the second mounting seat, a sliding seat slidably mounted on the second mounting seat, and a second abutting roller rotatably mounted on the sliding seat. An adjusting structure for adjusting the position of the sliding seat is provided on the second mounting seat, and a third conveying space for conveying the strip is formed between the second abutting roller and the third guiding roller.

[0019] By adopting the above technical solution, when in use, the strip is passed through the third conveying space, and the strip is guided by the third guiding roller to ensure the normal transmission of the strip; the sliding position of the sliding seat is controlled by the adjusting structure, so as to adjust the distance between the third guiding roller and the second abutting roller, thereby realizing the adjustment of the size of the third conveying space, and further adapting to strips of different thicknesses, and improving the overall applicable range of the equipment.

[0020] Preferably, the transmission module includes a third mounting seat installed on the frame, a fourth guiding roller and a pinch roller rotatably mounted on the third mounting seat, and a driving component for driving the pinch roller and the fourth guiding roller to rotate synchronously. A fourth conveying space for conveying the strip is formed between the pinch roller and the fourth guiding roller, and the driving component is arranged on the frame.

[0021] By adopting the above technical solution, when in use, the strip is threaded through the fourth conveying space, and the driving assembly is used to drive the pinch roller and the fourth guiding roller to rotate synchronously in opposite directions. Thus, under the combined action of the pinch roller and the fourth guiding roller, the transmission of the strip is realized.

[0022] Preferably, the third mounting seat includes a bottom plate fixed on the frame, second vertical plates fixed at both ends of the bottom plate, and second sliders slidably mounted on the second vertical plates. The fourth guiding roller rotates on the second vertical plates. A second lead screw is provided on the second vertical plates. One end of the second lead screw rotates on the second slider, a first hand wheel is fixed at the other end of the second lead screw, the second lead screw is threadedly connected to the second vertical plates, and the pinch roller rotates on the second slider.

[0023] By adopting the above technical solution, when in use, the first hand wheel is rotated to drive the second lead screw to rotate. Under the limiting action of the second vertical plates, the rotation of the second lead screw causes the second lead screw to slide along its own axis, thereby driving the second slider to slide, so as to realize the adjustment of the position of the pinch roller.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. When in use, the first guiding roller and the transmission module drive the strip to unwind. During this process, the first limiting module and the second limiting module limit the transmission of the strip to ensure that the strip passes under the detection and identification module. Then, the detection and identification module can detect the defects and identify the position of the unwound strip, so as to control the marking module to accurately mark the defects on the strip, thereby realizing the purpose of automatically detecting and marking the surface defects of the strip. The overall detection process is simple and efficient, and at the same time, the missed detection rate is lower compared with the manual detection method;

[0026] 2. When in use, by adjusting the sizes of the first conveying space, the second conveying space, the third conveying space and the fourth conveying space, it is convenient to detect strips of different thicknesses, thereby improving the overall application range of the equipment;

[0027] 3. When in use, by installing a protective sleeve on the laser of the laser marking machine, the safety of equipment use is increased, and at the same time, the influence of the external environment on the marking process of the laser marking machine is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is an isometric schematic diagram mainly showing the overall structure in the embodiment of the present application;

[0029] Figure 2 is an isometric schematic diagram mainly showing the structure of the detection and identification module in the embodiment of the present application;

[0030] Figure 3It is an axonometric schematic diagram mainly showing the structure of the first limiting module in the embodiment of the present application;

[0031] Figure 4 It is an axonometric schematic diagram mainly showing the structure of the first mounting seat in the embodiment of the present application;

[0032] Figure 5 It is an axonometric schematic diagram mainly showing the structure of the marking module in the embodiment of the present application;

[0033] Figure 6 It is an axonometric schematic diagram mainly showing the structure of the second limiting module in the embodiment of the present application;

[0034] Figure 7 It is an axonometric schematic diagram mainly showing the structure of the transmission module in the embodiment of the present application;

[0035] Figure 8 It is an axonometric schematic diagram mainly showing the structure of the third mounting seat in the embodiment of the present application;

[0036] Figure 9 It is an axonometric schematic diagram mainly showing the structure of the driving component in the embodiment of the present application.

[0037] Reference numerals: 1, frame; 11, first connecting rod; 12, first bolt; 13, second connecting rod; 14, second bolt; 2, first guiding roller; 3, detection and identification module; 31, detection probe; 32, defect identifier; 4, first limiting module; 41, first mounting seat; 411, first vertical plate; 412, first slider; 413, first lead screw; 414, handle; 415, first sliding groove; 42, second guiding roller; 43, first abutting roller; 44, first conveying space; 5, marking module; 51, laser marking machine; 52, protective sleeve; 53, second conveying space; 6, second limiting module; 61, second mounting seat; 611, vertical plate; 612, horizontal plate; 62, third guiding roller; 63, sliding seat; 64, second abutting roller; 65, adjusting structure; 651, third lead screw; 652, second hand wheel; 653, guiding rod; 66, third conveying space; 7, transmission module; 71, third mounting seat; 711, bottom plate; 712, second vertical plate; 713, second slider; 714, second lead screw; 715, first hand wheel; 716, second sliding groove; 72, fourth guiding roller; 73, pinch roller; 74, driving component; 741, driving motor; 742, transmission gearbox; 743, universal coupling; 75, fourth conveying space; 8, connecting plate; 9, rotating shaft; 10, guiding wheel. Detailed implementation manners

[0038] The following further Figure 1 - with reference Figure 9 to the attached drawings will further describe the present application in detail.

[0039] An embodiment of the present application discloses a strip surface defect detection device.

[0040] Referring to Figure 1 , a strip surface defect detection device includes a frame 1 standing horizontally on the ground. A first guiding roller 2, a detection and recognition module 3, a first limiting module 4, a marking module 5, a second limiting module 6, and a transmission module 7 are sequentially arranged on the frame 1 from left to right. When in use, one end of the strip passes through the first guiding roller 2, the detection and recognition module 3, the first limiting module 4, the marking module 5, the second limiting module 6, and the transmission module 7 in sequence. Then, under the action of the transmission module 7 and the first guiding roller 2, the strip is driven to unwind. During the unwinding process of the strip, the first limiting module 4 and the second limiting module 6 limit the transmission direction of the strip to prevent the transmission direction of the strip from skewing. The detection and recognition module 3 detects the defects on the surface of the strip and identifies the positions of the defects, and then controls the marking module 5 to mark the defects on the surface of the strip.

[0041] Referring to Figure 1 and Figure 2 , the detection and recognition module 3 includes two parts: a detection probe 31 and a defect recognition machine 32. The detection probe 31 is located between the first guiding roller 2 and the first limiting module 4. The detection probe 31 is electrically connected to the defect recognition machine 32. In this embodiment, the defect recognition machine 32 is preferably set as an eddy current flaw detector, and the defect recognition machine 32 is placed on the frame 1. When in use, the detection probe 31 detects the defects on the surface of the strip and identifies the positions of the defects, and then transmits the positions of the defects to the defect recognition machine 32 by sending electrical signals to the defect recognition machine 32. The defect recognition machine 32 receives and processes the electrical signals, and then feeds back the processed information to the marking module 5.

[0042] Referring to Figure 1 and Figure 2 , the frame 1 is provided with a first connecting rod 11 and a first bolt 12. A first waist-shaped hole is formed in the first connecting rod 11. The first bolt 12 passes through the first waist-shaped hole and is threadedly connected to the frame 1. A second connecting rod 13 and a second bolt 14 are arranged on the first connecting rod 11. A second waist-shaped hole is formed in the second connecting rod 13. The second bolt 14 passes through the second waist-shaped hole and is threadedly connected to the first connecting rod 11. The length directions of the first waist-shaped hole and the second waist-shaped hole are perpendicular to each other. The detection probe 31 is fixed at the bottom end of the second connecting rod 13, and the detection probe 31 is vertically oriented. When in use, the fixed positions of the first connecting rod 11 and the second connecting rod 13 can be adjusted according to the threading position of the strip, so as to adjust the installation position of the detection probe 31, thereby ensuring that the detection probe 31 always faces the strip.

[0043] Referring to Figure 1 and Figure 3, the first limiting module 4 includes a first mounting seat 41, a second guide roller 42 and a first abutting roller 43. The second guide roller 42 and the first abutting roller 43 are both rotatably mounted on the first mounting seat 41, and a first conveying space 44 is formed between the second guide roller 42 and the first abutting roller 43. During use, the strip is threaded through the first conveying space 44, and the strip is abutted by the second abutting roller 64, so as to ensure the transmission of the strip under the combined action of the second guide roller 42 and the first abutting roller 43.

[0044] Referring to Figure 3 and Figure 4 , the first mounting seat 41 includes two first vertical plates 411 and a first slider 412 slidably mounted on the first vertical plates 411. The first vertical plates 411 are fixed to the frame 1 by bolts. The two first vertical plates 411 are arranged oppositely. A first sliding groove 415 is formed on the first vertical plates 411. The first slider 412 is slidably mounted in the first sliding groove 415. The second guide roller 42 is located between the two first vertical plates 411, and both ends of the second guide roller 42 are rotatably connected to a first vertical plate 411 respectively. The first abutting roller 43 is located between the two first sliders 412, and both ends of the first abutting roller 43 are rotatably connected to a first slider 412 respectively.

[0045] Referring to Figure 3 and Figure 4 , a first lead screw 413 is arranged on the first vertical plate 411. One end of the first lead screw 413 is located in the first sliding groove 415 and is rotatably connected to the first slider 412. The other end of the first lead screw 413 passes through the inner wall of the first sliding groove 415 and is located above the first vertical plate 411. The first lead screw 413 is threadedly connected to the first vertical plate 411. The top end of the first lead screw 413 is fixedly connected with a handle 414. During use, by rotating the handle 414, the first lead screw 413 is driven to rotate. Under the limitation of the inner wall of the first sliding groove 415, the rotation of the first lead screw 413 drives itself to vertically slide in the reverse direction, thereby driving the first slider 412 to slide in the first sliding groove 415, so as to adjust the position of the first abutting roller 43 and further adjust the size of the first conveying space 44.

[0046] Referring to Figure 1 and Figure 5, the marking module 5 includes a laser marking machine 51. In this embodiment, the laser marking machine 51 is preferably set as a fiber laser marking machine 51. The laser marking machine 51 is fixed on the frame 1 by bolts, and the laser of the laser marking machine 51 is vertically oriented. At the same time, in order to increase the safety during the use of the laser marking machine 51, a protective sleeve 52 is sleeved on the laser of the laser marking machine 51. The protective sleeve 52 is divided into an upper cylinder and a lower cylinder. The top end of the upper cylinder is adhesively fixed on the laser of the laser marking machine 51, and the laser is located inside the upper cylinder. The bottom end of the lower cylinder is adhesively fixed on the marking table of the laser marking machine 51. A second conveying space 53 is formed between the upper cylinder and the lower cylinder.

[0047] Refer to Figure 1 and Figure 5 , during use, it drives to pass through the first conveying space 44 and then penetrates into the second conveying space 53. After that, the laser of the laser marking machine 51 emits laser to perform laser marking on the defective part of the strip. During the marking process, by setting the protective sleeve 52, the working area of the laser is isolated, preventing the staff's arm from accidentally entering the working area of the laser and being burned by the laser emitted by the laser, and at the same time avoiding interference from the external environment during the operation of the laser.

[0048] Refer to Figure 1 and Figure 6 , the second limiting module 6 includes a second mounting seat 61, a third guide roller 62, a sliding seat 63 and a second abutting roller 64. The second mounting seat 61 is arranged on the frame 1. The third guide roller 62 rotates on the second mounting seat 61. The sliding seat 63 slides vertically on the second mounting seat 61. The second mounting seat 61 is integrally in the shape of a U-shaped plate structure. The two ends of the second abutting roller 64 are respectively rotatably connected to one end of the second mounting seat 61. The second abutting roller 64 is located above the third guide roller 62. A third conveying space 66 is formed between the second abutting roller 64 and the third guide roller 62. An adjusting structure 65 is arranged on the second mounting seat 61.

[0049] Refer to Figure 1 and Figure 6 , during use, the strip passes through the second conveying space 53 and then penetrates into the third conveying space 66. Then, the sliding seat 63 is controlled to slide vertically through the adjusting structure 65 until the side wall of the second abutting roller 64 abuts against the surface of the strip, and the guiding of the strip transmission can be realized. At the same time, the staff can adjust the sliding position of the sliding seat 63 according to the thickness of the strip through the adjusting structure 65, so as to adjust the size of the third conveying space 66.

[0050] Refer to Figure 6, the second mounting seat 61 is composed of two vertical plates 611 and a horizontal plate 612. The two vertical plates 611 are arranged oppositely. The vertical plates 611 are fixed to the frame 1 by bolts. The horizontal plate 612 is located between the tops of the two vertical plates 611. The two ends of the horizontal plate 612 are respectively bolted to a vertical plate 611. The sliding seat 63, the third guide roller 62 and the second abutting roller 64 are all located below the horizontal plate 612. The two ends of the third guide roller 62 are respectively rotatably connected to a vertical plate 611. The sliding seat 63 slides vertically between the two vertical plates 611. The second abutting roller 64 is rotatably connected to the sliding seat 63.

[0051] Refer to Figure 6 , the adjusting structure 65 is arranged on the horizontal plate 612. The adjusting structure 65 includes a third lead screw 651, a second handwheel 652 and a guide rod 653. The bottom end of the third lead screw 651 is located below the horizontal plate 612 and is rotatably connected to the sliding seat 63. The top end of the third lead screw 651 passes through the horizontal plate 612 and is located above the horizontal plate 612. The third lead screw 651 is threadedly connected to the horizontal plate 612. The second handwheel 652 is welded to the top end of the third lead screw 651. There are two guide rods 653. The two guide rods 653 are respectively located on both sides of the third lead screw 651. The bottom end of the guide rod 653 is welded and fixed to the top end of the sliding seat 63. The top end of the guide rod 653 passes through the horizontal plate 612 and is located above the horizontal plate 612. The horizontal plate 612 is slidably inserted and matched with the guide rod 653. During use, by rotating the second handwheel 652 to drive the third lead screw 651 to rotate, the rotation of the third lead screw 651 can drive the sliding seat 63 to slide vertically, so as to adjust the position of the second abutting roller 64.

[0052] Refer to Figure 1 and Figure 7 , the transmission module 7 includes a third mounting seat 71, a fourth guide roller 72, a pinch roller 73 and a driving component 74. The third mounting seat 71 is arranged on the frame 1. The pinch roller 73 and the fourth guide roller 72 are both rotatable on the third mounting seat 71. The pinch roller 73 is located above the fourth guide roller 72. A fourth conveying space 75 is formed between the pinch roller 73 and the fourth guide roller 72. During use, the strip passes through the third conveying space 66 and then enters the fourth conveying space 75. Then, the strip is clamped and abutted by the pinch roller 73 and the fourth guide roller 72. Then, the driving component 74 drives the pinch roller 73 and the fourth guide roller 72 to rotate synchronously in opposite directions, so as to drive the strip to be conveyed forward.

[0053] Refer to Figure 7 and Figure 8, the third mounting seat 71 includes a bottom plate 711, two second vertical plates 712 and a second slider 713. The bottom plate 711 is fixed to the frame 1 by bolts. The two second vertical plates 712 are respectively located at both ends of the bottom plate 711 and fixed to the bottom plate 711 by bolts. A second sliding groove 716 is formed in the second vertical plate 712, and the second slider 713 slides in the second sliding groove 716. The fourth guide roller 72 and the pinch roller 73 are both located between the two second vertical plates 712. Both ends of the fourth guide roller 72 are rotatably connected to a second vertical plate 712 respectively, and both ends of the pinch roller 73 are rotatably connected to a second slider 713 respectively.

[0054] Referring to Figure 7 and Figure 8 , a second lead screw 714 is provided on each second vertical plate 712. The bottom end of the second lead screw 714 is rotatably connected to the second slider 713. The top end of the second lead screw 714 passes through the second vertical plate 712 and is located above the second vertical plate 712. The second lead screw 714 is threadedly connected to the second vertical plate 712, and a first handwheel 715 is welded and fixed to the top end of the second lead screw 714. During use, by rotating the first handwheel 715, the second lead screw 714 is driven to rotate. When the second lead screw 714 rotates, under the action of the second vertical plate 712, the second lead screw 714 is driven to vertically slide itself, thereby driving the second slider 713 to slide in the vertical direction, so as to adjust the size of the fourth conveying space 75.

[0055] Referring to Figure 7 and Figure 8 , a connecting plate 8 is further provided between the two second vertical plates 712. Both ends of the connecting plate 8 are bolted to a second vertical plate 712 respectively. The connecting plate 8 is located on the left side of the third mounting seat 71. Two rotating shafts 9 are welded on the connecting plate 8. The two rotating shafts 9 are located at both ends of the connecting plate 8. Guide wheels 10 are rotatably connected to the rotating shafts 9. During use, the two guide wheels 10 abut against and guide both sides of the strip, so as to ensure that the transmission direction of the strip does not deviate.

[0056] Referring to Figure 7 and Figure 9 , the driving assembly 74 includes a driving motor 741, a transmission gearbox 742 and two universal couplings 743. In this embodiment, the driving motor 741 is preferably set as a reduction motor. The driving motor 741 is fixed to the frame 1 by bolts. The transmission gearbox 742 is provided with an input shaft and two output shafts. The main shaft of the driving motor 741 is coaxially and fixedly connected to the input shaft of the transmission gearbox 742. A universal coupling 743 is installed on each of the two output shafts. The other end of one universal coupling 743 is coaxially and fixedly connected to the pinch roller 73, and the other end of the other universal coupling 743 is coaxially and fixedly connected to the fourth guide roller 72.

[0057] Referring to Figure 7 andFigure 9 The structure of the transmission gearbox 742 consists of several gears. The several gears are meshed with each other to control the synchronous rotation of the two output shafts in opposite directions. In this embodiment, the transmission gearbox 742 consists of a first gear, a second gear, a third gear, and a fourth gear. The first gear, the second gear, the third gear, and the fourth gear are arranged in meshing order along the vertical direction. The first gear and the fourth gear are respectively used to connect a universal coupling 743.

[0058] Referring to Figure 8 and Figure 9 During use, the main shaft of the drive motor 741 rotates. Under the transmission of the transmission gearbox 742, the two universal couplings 743 rotate synchronously, thereby driving the pinch rolls 73 and the fourth guide rolls 72 to rotate synchronously, and sequentially driving the strip to be transmitted. At the same time, since the pinch rolls 73 can move up and down along the vertical direction, by setting the universal couplings 743, it is ensured that the pinch rolls 73 can be normally driven by the drive motor 741 after moving, and the use is simple and convenient.

[0059] The implementation principle of the embodiment of this application is as follows: During use, place the strip on the frame 1, then take one end of the strip and pass it through the first transmission space 44, the second transmission space 53, the third transmission space 66, and the fourth transmission space 75 in sequence and connect it to an external winding roller. Then, the drive motor 741 can be started to control the synchronous rotation of the pinch rolls 73 and the fourth guide rolls 72, thereby driving the strip to be transmitted. During the transmission of the strip, the first limiting module 4 and the second limiting module 6 are used to guide and limit the moving direction of the strip to ensure that the strip always passes under the detection probe 31 and the laser. Then, the detection probe 31 can detect the defects on the surface of the strip and identify the defect positions, and then transmit the positions of the defects to the defect identifier 32 in the form of electrical signals. The defect identifier 32 controls the marking position of the laser marking machine 51, so as to ensure that the laser marking machine 51 can accurately mark all the defects on the surface of the strip, avoiding the situation of missed detection and missed marking. After the detection is completed, under the action of the transmission module 7, the strip is all wound on the winding roller, which is convenient for subsequent handling. The overall detection process is simple and convenient, and the detection efficiency is significantly improved compared with the manual detection method. At the same time, the detection process is automated, which also saves labor costs.

[0060] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A strip surface defect detection device, characterized in that: The invention comprises a frame (1), on which a first guide roller (2), a detection and identification module (3) for detecting and identifying the position of a strip surface defect, a first limit module (4) for limiting the strip conveying position, a marking module (5) for marking the strip surface defect, a second limit module (6) for performing a secondary limit on the strip conveying position, and a transmission module (7) for driving the strip transmission are sequentially arranged along the length direction thereof, and the first guide roller (2) is rotatably connected to the frame (1).

2. The strip surface defect detection device according to claim 1, characterized in that: The detection and identification module (3) comprises a detection probe (31) fixed on the frame (1) and a defect recognition machine (32) installed on the frame (1); the detection probe (31) is electrically connected to the defect recognition machine (32), and the detection probe (31) is located between the first guide roller (2) and the first limit module (4).

3. The strip surface defect detection device according to claim 1, characterized in that: The first limiting module (4) comprises a first mounting seat (41) fixed on the frame (1), a second guide roller (42) rotating on the first mounting seat (41), and a first abutting roller (43) for abutting the strip, and a first conveying space (44) for conveying the strip is formed between the first abutting roller (43) and the second guide roller (42).

4. The strip surface defect detection device according to claim 3 is characterized in that: The first mounting seat (41) comprises two first vertical plates (411) fixed on the frame (1) and a first slider (412) sliding on the first vertical plates (411); the two first vertical plates (411) are arranged opposite to each other; the second guide roller (42) is rotatably connected to the first vertical plate (411); a first screw rod (413) for adjusting the position of the first slider (412) is arranged on the first vertical plate (411); one end of the first screw rod (413) is rotatably connected to the first slider (412); the other end of the first screw rod (413) is fixedly connected to a handle (414); the first screw rod (413) is threadedly connected to the first vertical plate (411); and the first abutment roller (43) is rotatably connected to the first slider (412).

5. The strip surface defect detection device according to claim 1, characterized in that: The marking module (5) comprises a laser marking machine (51) mounted on the frame (1), and a laser of the laser marking machine (51) is arranged toward the strip.

6. The strip surface defect detection device according to claim 5, characterized in that: A protective sleeve (52) is installed on the laser of the laser marking machine (51), and a second conveying space (53) for passing the strip is opened on the protective sleeve (52).

7. The strip surface defect detection device according to claim 1, characterized in that: The second limiting module (6) comprises a second mounting seat (61) fixed on the frame (1), a third guide roller (62) rotating on the second mounting seat (61), a slide seat (63) sliding on the second mounting seat (61), and a second abutment roller (64) rotating on the slide seat (63); an adjustment structure (65) for adjusting the position of the slide seat (63) is provided on the second mounting seat (61); and a third conveying space (66) for conveying the belt is formed between the second abutment roller (64) and the third guide roller (62).

8. The strip surface defect detection device according to claim 1, characterized in that: The transmission module (7) comprises a third mounting seat (71) mounted on the frame (1), a fourth guide roller (72) and a pinch roller (73) rotating on the third mounting seat (71), and a driving assembly (74) for driving the pinch roller (73) and the fourth guide roller (72) to rotate synchronously, a fourth conveying space (75) for conveying the strip is formed between the pinch roller (73) and the fourth guide roller (72), and the driving assembly (74) is arranged on the frame (1).

9. The strip surface defect detection device according to claim 8, characterized in that: The third mounting seat (71) comprises a bottom plate (711) fixed on the frame (1), second vertical plates (712) fixed at both ends of the bottom plate (711), and a second slider (713) sliding on the second vertical plate (712); the fourth guide roller (72) rotates on the second vertical plate (712); a second screw rod (714) is provided on the second vertical plate (712); one end of the second screw rod (714) rotates on the second slider (713); a first hand wheel (715) is fixed on the other end of the second screw rod (714); the second screw rod (714) is threadedly connected to the second vertical plate (712); and the pinch roller (73) rotates on the second slider (713).

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