An online defect detection device for non-ferrous metal rolled products

Abstract

This utility model relates to the field of defect detection technology for non-ferrous metal rolled products, specifically to an online defect detection device for non-ferrous metal rolled products, comprising: a base, a frame fixedly connected to the top of the base, and a non-ferrous metal rolled strip pulled by a traction device arranged above the base; and a detection mechanism, including a drive motor installed on the top of the frame. By setting up the detection mechanism, when detecting the thickness of the non-ferrous metal rolled strip, the outer sides of two detection rollers respectively contact the two sides of the non-ferrous metal rolled strip. The traction device conveys the non-ferrous metal rolled strip, and the detection rollers rotate following the movement of the non-ferrous metal rolled strip. When a change in thickness occurs, the pressure sensor value changes, thereby enabling online detection of whether thickness defects exist in the non-ferrous metal rolled strip. This not only improves detection efficiency but also ensures detection accuracy, demonstrating good practicality.

Description

Technical Field

[0001] This utility model relates to the field of defect detection technology for non-ferrous metal rolled products, and specifically to an online defect detection device for non-ferrous metal rolled products. Background Technology

[0002] Non-ferrous metals refer to all metals except iron, manganese, chromium and their alloys, including heavy metals, light metals, precious metals and rare metals. Rolling is one of the common processes in the production of non-ferrous metals. Non-ferrous metal rolling is a process in which metal billets such as copper, aluminum and zinc are plastically deformed through pressure processing methods such as rolling and extrusion, and finally made into finished products such as plates, strips and profiles.

[0003] After non-ferrous metals are rolled, the produced non-ferrous metal rolled products need to be inspected to check for defects. Common inspections include surface defect inspection and internal defect inspection. After the production of non-ferrous metal rolled strips, their thickness needs to be inspected online.

[0004] In traditional production processes, the thickness of non-ferrous metal rolled strip is usually measured manually using a micrometer. Since the strip is often large in size, this contact-based point-by-point measurement method is extremely inefficient. At the same time, manual operation is prone to introducing errors, making it difficult to guarantee the accuracy of the final test results. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an online defect detection device for non-ferrous metal rolled products, which can effectively solve the problems mentioned in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides an online defect detection device for non-ferrous metal rolled products, comprising:

[0008] A base, the top of which is fixedly connected to a frame, and a non-ferrous metal rolling strip pulled by a traction device is provided above the base;

[0009] The detection mechanism includes a drive motor mounted on the top of a frame. The output shaft of the drive motor is fixedly connected to a bidirectional lead screw. Two symmetrically distributed internal thread blocks are threaded to the outer side of the bidirectional lead screw. Mounting plates are fixedly connected to the outer side of the internal thread blocks. U-shaped strips are provided on the opposite surfaces of the two mounting plates. A detection roller rotates on the inner wall of the U-shaped strip. A pressure sensor is provided between the U-shaped strip and the mounting plate. A counting component for counting the number of rotations of the detection roller is provided on the outer side of the U-shaped strip.

[0010] Preferably, the pressure sensor is mounted on the outside of the mounting plate, and a spring is fixedly connected to the other end of the pressure sensor, which is fixedly connected to the outside of the U-shaped strip.

[0011] Preferably, a vertical rod is fixedly connected to the outside of the U-shaped strip, and the other end of the vertical rod passes through the mounting plate and is slidably connected to the mounting plate.

[0012] Preferably, the inner wall of the U-shaped strip is movably connected to a rotating shaft via a bearing, and the detection roller is fixedly connected to the outside of the rotating shaft.

[0013] Preferably, the inner wall of the frame has two symmetrically distributed grooves, and a slider is fixedly connected to the outer side of the internal thread block, the slider being slidably connected to the inner wall of the corresponding groove.

[0014] Preferably, the end of the bidirectional lead screw away from the drive motor passes through the top of the frame and is movably connected to the inner wall of the frame via a bearing, and the two outer ends of the bidirectional lead screw are configured with reverse threads.

[0015] Preferably, the counting component includes a mounting block fixedly connected to the outside of the U-shaped strip, a press counter mounted on the outside of the mounting block, one end of the rotating shaft passing through the U-shaped strip and extending to the outside of the U-shaped strip, a rotating wheel fixedly connected to the outside of the rotating shaft, and a protrusion fixedly connected to the outside of the rotating wheel.

[0016] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0017] 1. This utility model, by setting up a detection mechanism, makes the outer sides of two detection rollers contact the two sides of the non-ferrous metal rolled strip when detecting the thickness. The traction device conveys the non-ferrous metal rolled strip, and the detection rollers follow the movement and rotation of the non-ferrous metal rolled strip. When a change in thickness occurs, the pressure sensor value changes, thereby enabling online detection of whether the non-ferrous metal rolled strip has thickness defects. This not only improves the detection efficiency but also ensures the detection accuracy, and has good practicality.

[0018] 2. By setting up a counting component, this utility model allows the counter to be pressed to obtain the number of rotations of the detection roller when the detection roller detects the thickness of the non-ferrous metal rolled strip. Based on the circumference of the detection roller and the number of rotations, the location and length of the non-ferrous metal rolled strip with thickness abnormality can be calculated, which facilitates the subsequent processing of non-ferrous metal rolled strip with defects. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the online defect detection equipment of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the frame of this utility model;

[0022] Figure 3 This is a schematic diagram of a portion of the bidirectional lead screw of this utility model;

[0023] Figure 4 This is a partial structural diagram of the mounting plate of this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the frame of this utility model.

[0025] The labels in the diagram represent:

[0026] 1. Base; 2. Non-ferrous metal rolled strip; 3. Frame; 4. Detection mechanism; 41. Drive motor; 411. Internal threaded block; 412. Bidirectional lead screw; 413. Slider; 414. Slide groove; 42. Counting assembly; 421. Mounting block; 422. Press counter; 423. Protrusion block; 424. Rotary wheel; 43. Mounting plate; 44. Vertical rod; 45. U-shaped strip; 451. Detection roller; 452. Rotating shaft; 46. Pressure sensor; 47. Spring. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] The present invention will be further described below with reference to the embodiments. Example 1:

[0029] Reference Figure 1-5 This is the first embodiment of the present invention, which discloses an online defect detection device for non-ferrous metal rolled products, comprising:

[0030] Base 1, a frame 3 arranged in a "return" shape is fixedly connected to the top of the base 1, and a non-ferrous metal rolling belt 2 towed by a traction device is arranged above the base 1;

[0031] The detection mechanism 4 includes a driving motor 41 installed on the top of the frame 3. The output shaft of the driving motor 41 is fixedly connected with a bidirectional screw rod 412. Two symmetrically distributed internal thread blocks 411 are threadedly connected to the outside of the bidirectional screw rod 412. The outside of the internal thread block 411 is fixedly connected with a mounting plate 43. U-shaped bars 45 are arranged on the opposite surfaces of the two mounting plates 43. A detection roller 451 is rotatably arranged on the inner wall of the U-shaped bar 45. A pressure sensor 46 is arranged between the U-shaped bar 45 and the mounting plate 43. A counting component 42 for counting the number of rotations of the detection roller 451 is arranged outside the U-shaped bar 45.

[0032] The driving motor 41 drives the bidirectional screw rod 412 to rotate. The rotation of the bidirectional screw rod 412 drives the two internal thread blocks 411 to move in opposite directions, so that the detection roller 451 contacts the non-ferrous metal rolling belt 2 to sense whether there is a thickness change in it.

[0033] Specifically, the pressure sensor 46 is installed on the outside of the mounting plate 43. The other end of the pressure sensor 46 is fixedly connected with a spring 47. The spring 47 is fixedly connected to the outside of the U-shaped bar 45.

[0034] When the U-shaped bar 45 is displaced due to the thickness change of the non-ferrous metal rolling belt 2, the value of the pressure sensor 46 will change. When the thickness of the non-ferrous metal rolling belt 2 becomes thinner, the value of the pressure sensor 46 becomes smaller at this time. When the thickness of the non-ferrous metal rolling belt 2 becomes thicker, the U-shaped bar 45 squeezes the pressure sensor 46 at this time, so the value of the pressure sensor 46 becomes larger.

[0035] Specifically, a vertical rod 44 is fixedly connected to the outside of the U-shaped bar 45. The other end of the vertical rod 44 penetrates through the mounting plate 43 and is slidably connected to the mounting plate 43.

[0036] Under the action of the vertical rod 44, the movement track of the U-shaped bar 45 is limited, so that the U-shaped bar 45 can only move towards one side close to the mounting plate 43 or away from the mounting plate 43.

[0037] [[ID=2​​​​​Specifically, the inner wall of the frame 3 has two symmetrically distributed grooves 414, and the outer side of the internal thread block 411 is fixedly connected to a slider 413, which is slidably connected to the inner wall of the corresponding groove 414.

[0040] The movement trajectory of the internal thread block 411 can be limited by the sliding groove 414 and the slider 413. When the drive motor 41 drives the bidirectional lead screw 412 to rotate, the two internal thread blocks 411 can only move in the up and down direction.

[0041] Specifically, the end of the bidirectional lead screw 412 away from the drive motor 41 passes through the top of the frame 3 and is movably connected to the inner wall of the frame 3 through a bearing. The two outer ends of the bidirectional lead screw 412 are set with reverse threads.

[0042] Under the action of the bearing, the drive motor 41 can drive the bidirectional lead screw 412 to rotate inside the frame 3. With the reverse thread setting, when the bidirectional lead screw 412 rotates, the two internal thread blocks 411 move in opposite directions. Example 2:

[0043] Reference Figure 1-4 This is the second embodiment of the present invention, which differs from the first embodiment in that:

[0044] The counting component 42 includes a mounting block 421 fixedly connected to the outside of the U-shaped strip 45. A push counter 422 is mounted on the outside of the mounting block 421. One end of the rotating shaft 452 passes through the U-shaped strip 45 and extends to the outside of the U-shaped strip 45. A rotating wheel 424 is fixedly connected to the outside of the rotating shaft 452. A protrusion 423 is fixedly connected to the outside of the rotating wheel 424.

[0045] The mounting block 421 facilitates the installation of the press counter 422. The rotating shaft 452 rotates, driving the rotating wheel 424 to rotate. Under the action of the protrusion block 423, when the rotating wheel 424 rotates one revolution, the press counter 422 is pressed once by the protrusion block 423. The press counter 422 obtains the number of revolutions of the detection roller 451, and thus determines the length and position of the thickness abnormality in the non-ferrous metal rolling strip 2 based on the number of revolutions and the circumference of the detection roller 451.

[0046] Defect length = Number of rotations of detection roller 451 when the defect occurs * Circumference of detection roller 451;

[0047] Defect location = Number of rotations of detection roller 451 from the detection start position to the defect location * Circumference of detection roller 451.

[0048] The remaining structure is the same as that in Example 1.

[0049] The workflow of this utility model is as follows:

[0050] The non-ferrous metal rolled strip 2 that needs to be thickness tested is placed between two testing rollers 451. The drive motor 41 drives the bidirectional lead screw 412 to rotate through the output shaft. The bidirectional lead screw 412 rotates and drives the two internal thread blocks 411 to move towards the middle until the two testing rollers 451 are in close contact with the outer side of the non-ferrous metal rolled strip 2.

[0051] The non-ferrous metal rolled strip 2 is pulled by a traction device. The movement of the non-ferrous metal rolled strip 2 drives the detection roller 451 to rotate. When the thickness of the non-ferrous metal rolled strip 2 changes, the value of the pressure sensor 46 between the U-shaped strip 45 and the mounting plate 43 will change. Based on the change in the value of the pressure sensor 46, it can be determined whether there is a thickness defect in the non-ferrous metal rolled strip 2.

[0052] In addition, when the detection roller 451 rotates, the rotating shaft 452 drives the rotating wheel 424 to rotate. The rotation of the rotating wheel 424 presses and counts the pressure of the pressing counter 422 through the protrusion 423, thereby obtaining the number of rotations of the detection roller 451. Based on the number of rotations and the circumference of the detection roller 451, the length and position of the defect in the thickness of the non-ferrous metal rolled strip 2 are located. After the inspection is completed, the non-ferrous metal rolled strip 2 with defects is processed.

[0053] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. An online defect detection device for non-ferrous metal rolled products, characterized in that, include: A base (1) is fixedly connected to a frame (3) on the top of the base (1), and a non-ferrous metal rolling strip (2) is provided above the base (1) by a traction device. The detection mechanism (4) includes a drive motor (41) mounted on the top of the frame (3). The output shaft of the drive motor (41) is fixedly connected to a bidirectional lead screw (412). The outer side of the bidirectional lead screw (412) is threaded with two symmetrically distributed internal thread blocks (411). The outer side of the internal thread blocks (411) is fixedly connected to a mounting plate (43). The opposite surfaces of the two mounting plates (43) are provided with U-shaped strips (45). The inner wall of the U-shaped strips (45) is rotated with a detection roller (451). A pressure sensor (46) is provided between the U-shaped strips (45) and the mounting plate (43). The outer side of the U-shaped strips (45) is provided with a counting component (42) for counting the number of rotations of the detection roller (451).

2. The online defect detection equipment for non-ferrous metal rolled products according to claim 1, characterized in that, The pressure sensor (46) is mounted on the outside of the mounting plate (43), and a spring (47) is fixedly connected to the other end of the pressure sensor (46). The spring (47) is fixedly connected to the outside of the U-shaped strip (45).

3. The online defect detection equipment for non-ferrous metal rolled products according to claim 1, characterized in that, A vertical rod (44) is fixedly connected to the outside of the U-shaped strip (45), and the other end of the vertical rod (44) passes through the mounting plate (43) and is slidably connected to the mounting plate (43).

4. The online defect detection equipment for non-ferrous metal rolled products according to claim 1, characterized in that, The inner wall of the U-shaped strip (45) is movably connected to a rotating shaft (452) via a bearing, and the detection roller (451) is fixedly connected to the outside of the rotating shaft (452).

5. The online defect detection equipment for non-ferrous metal rolled products according to claim 1, characterized in that, The inner wall of the frame (3) has two symmetrically distributed grooves (414), and a slider (413) is fixedly connected to the outer side of the internal thread block (411). The slider (413) is slidably connected to the inner wall of the corresponding groove (414).

6. The online defect detection equipment for non-ferrous metal rolled products according to claim 1, characterized in that, The end of the bidirectional lead screw (412) away from the drive motor (41) passes through the top of the frame (3) and is movably connected to the inner wall of the frame (3) through a bearing. The two outer ends of the bidirectional lead screw (412) are set with reverse threads.

7. The online defect detection equipment for non-ferrous metal rolled products according to claim 4, characterized in that, The counting component (42) includes a mounting block (421) fixedly connected to the outside of the U-shaped strip (45), a press counter (422) is mounted on the outside of the mounting block (421), one end of the rotating shaft (452) passes through the U-shaped strip (45) and extends to the outside of the U-shaped strip (45), a rotating wheel (424) is fixedly connected to the outside of the rotating shaft (452), and a protrusion (423) is fixedly connected to the outside of the rotating wheel (424).

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