Galvanized wire defect detection equipment and method thereof

Abstract

The invention relates to the technical field of galvanized wires, and discloses galvanized wire defect detection equipment and a method thereof.The galvanized wire defect detection equipment comprises an installation unit, a transmission unit and a positioning unit, the installation unit comprises a workbench, a base is installed at the bottom of the workbench, supporting legs are arranged on the periphery of the bottom of the base respectively, and two symmetrical special-shaped plates are installed above the workbench. According to the galvanized wire pre-clamping device, a worker can drive a first limiting block and a second limiting block to pre-clamp a galvanized wire close to one end of a first clamping block and one end of a second clamping block through the driving assembly by starting the driving assembly; meanwhile, a first limiting block and a second limiting block can move under the assistance of a driving assembly, an L-shaped sliding groove and a movable sliding block, so that the placed galvanized wire is straightened, and meanwhile, when the first limiting block and the second limiting block move, the eddy current sensor can be driven to move; therefore, the straightened galvanized wire can be detected through the eddy current sensor.

Description

Technical Field

[0001] The present invention belongs to the technical field of galvanized wire, and specifically relates to a defect detection device and method for galvanized wire. Background Art

[0002] Galvanized wire is widely used in many fields such as industrial production, construction, and agriculture, and its quality directly affects the use effect and safety. However, during the production process of galvanized wire, due to various factors such as process and raw materials, defects such as uneven galvanized layer thickness, surface cracks, and missing plating may occur.

[0003] However, when the existing detection of galvanized wire is carried out, it is often necessary to first fix both ends of the galvanized wire and then straighten the galvanized wire, so as to detect it through an eddy current sensor. However, when the galvanized wire is being straightened, it is often impossible to accurately judge whether it is in a straightened state, so it is necessary to continuously pull the galvanized wire, resulting in more trouble.

[0004] In view of this, the present invention is specifically proposed. Summary of the Invention

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A defect detection device for galvanized wire includes an installation unit, a transmission unit, and a positioning unit. The installation unit includes a workbench, a base is installed at the bottom of the workbench, support legs are respectively arranged around the bottom of the base, two symmetrically arranged special-shaped plates are installed above the workbench, a motor protective shell is further arranged on one side wall of the workbench, a first clamping block and a second clamping block are further arranged above the workbench, the first clamping block and the second clamping block are symmetric to each other, a sliding door is arranged in the front of the workbench, two symmetrically arranged installation notches are opened above the workbench, and a placement notch is opened in the middle of the workbench;

[0007] The positioning unit includes an eddy current sensor, a first positioning block, and a second positioning block. The first positioning block and the second positioning block are symmetric to each other. Fifth sliding mechanisms are arranged at the bottoms of the first positioning block and the second positioning block. The fifth sliding mechanism includes two moving chutes. The two moving chutes are symmetric to each other. Sliding blocks are slidably installed in the inner cavities of the two moving chutes. One ends of the two sliding blocks are fixedly connected with return springs, and the other ends of the two return springs are fixedly connected to one ends of the inner cavities of the moving chutes;

[0008] The transmission unit includes a driving component, a first limiting block, and a second limiting block. The driving component is used to drive the first limiting block and the second limiting block to move, and the driving component can also be used to drive the first positioning block and the second positioning block to move horizontally.

[0009] As a preferred embodiment of the present invention, the driving assembly includes a servo motor. A threaded rod is fixedly installed at the output end of the servo motor. The threaded rod movably penetrates through the workbench. A bearing is provided at one end of the threaded rod away from the servo motor. The bearing is arranged on the inner wall of the workbench. A threaded sleeve is meshingly installed on the threaded rod. A first sliding mechanism is provided at the bottom of the threaded sleeve.

[0010] As a preferred embodiment of the present invention, the first sliding mechanism includes a first chute. The first chute is opened at the bottom of the workbench. A first slider is slidably installed in the inner cavity of the first chute. The upper end of the first slider is fixedly connected to the threaded sleeve.

[0011] As a preferred embodiment of the present invention, the first sliding mechanism includes a first chute. Two symmetrically arranged fixed rods are fixedly installed on the threaded sleeve. L-shaped connecting rods are fixedly connected to opposite ends of the two fixed rods. The two L-shaped connecting rods are symmetrically arranged and respectively movably penetrate through the mounting notches.

[0012] As a preferred embodiment of the present invention, second sliding mechanisms are opened on the opposite side walls of the two special-shaped plates. The second sliding mechanism includes two special-shaped chutes. The two special-shaped chutes are respectively opened on the special-shaped plates. The two special-shaped chutes are symmetrically arranged. Guide sliders are slidably installed in the inner cavities of the two special-shaped chutes. The two guide sliders are symmetrically arranged. First connecting plates are fixedly connected to the opposite side walls of the two guide sliders.

[0013] As a preferred embodiment of the present invention, the two first connecting plates are symmetrically arranged. A third sliding mechanism is provided at the bottom of each of the two first connecting plates. The third sliding mechanism includes two second chutes. The two second chutes are respectively opened on the first connecting plates. The two second chutes are symmetrically arranged. Second sliders are slidably installed in the inner cavities of the two second chutes. L-shaped connecting rods are fixedly connected to the bottoms of the two second sliders.

[0014] As a preferred embodiment of the present invention, connecting plates are fixedly connected to one side walls of the two first connecting plates. The two connecting plates are symmetrically arranged. Third chutes are opened on the opposite side walls of the two connecting plates. The two third chutes are symmetrically arranged. Third sliders are slidably installed in the inner cavities of the two third chutes. The two third sliders are symmetrically arranged. Second connecting plates are fixedly connected to the opposite side walls of the two third sliders. The two second connecting plates are symmetrically arranged.

[0015] As a preferred embodiment of the present invention, first limiting blocks and second limiting blocks are respectively fixedly connected to opposite side walls of the two second connecting plates. The first limiting blocks and the second limiting blocks are symmetrical to each other. Two positioning plates are respectively fixedly connected above the two first limiting blocks and the second limiting blocks. Expansion rods are fixedly connected above the two positioning plates. A connecting block is fixedly connected to opposite side walls of the two expansion rods. One end of the connecting block is fixedly connected to a limiting plate. A eddy current sensor is arranged at the bottom of the end of the limiting plate away from the connecting block.

[0016] As a preferred embodiment of the present invention, two symmetrical L-shaped sliding grooves are further formed on the workbench. Two moving sliders are slidably installed in the two L-shaped sliding grooves. The two moving sliders are symmetrical to each other. First limiting blocks and second limiting blocks are respectively fixedly connected above the two moving sliders.

[0017] A method for detecting defects of galvanized wire is as follows:

[0018] Step 1: First, the staff places the galvanized wire between the first clamping block and the second clamping block, and clamps it through the existing clamping components in the first clamping block and the second clamping block. When the clamping is completed, the staff then passes the other end of the galvanized wire through between the first positioning block and the second positioning block.

[0019] Step 2: At this time, the staff starts the driving component, so that the driving component can drive the first limiting block and the second limiting block to pre-clamp the galvanized wire near one end of the first clamping block and the second clamping block first. At the same time, the first limiting block and the second limiting block can also move with the assistance of the driving component, the L-shaped sliding groove and the moving slider, so as to straighten the placed galvanized wire.

[0020] Step 3: When the first limiting block and the second limiting block move, they can also drive the eddy current sensor to move. Therefore, the straightened galvanized wire can be detected by the eddy current sensor.

[0021] The present invention has the following beneficial effects compared with the prior art:

[0022] In the present invention, the staff starts the driving component, so that the driving component can drive the first limiting block and the second limiting block to pre-clamp the galvanized wire near one end of the first clamping block and the second clamping block first. At the same time, the first limiting block and the second limiting block can also move with the assistance of the driving component, the L-shaped sliding groove and the moving slider, so as to straighten the placed galvanized wire. At the same time, when the first limiting block and the second limiting block move, they can also drive the eddy current sensor to move. Therefore, the straightened galvanized wire can be detected by the eddy current sensor.

[0023] The following further describes in detail the specific embodiments of the present invention in conjunction with the accompanying drawings. Description of the Drawings

[0024] In the drawings:

[0025] Figure 1 is a three-dimensional structural schematic diagram of a defect detection device and method for galvanized wire;

[0026] Figure 2 is a side view structural schematic diagram of a defect detection device and method for galvanized wire;

[0027] Figure 3 is a sectional view structural schematic diagram of a defect detection device and method for galvanized wire;

[0028] Figure 4 is a Figure 3 magnified structural schematic diagram at position A in;

[0029] Figure 5 is a bottom view structural schematic diagram of the inner cavity of the workbench of a defect detection device and method for galvanized wire;

[0030] Figure 6 is a Figure 5 magnified structural schematic diagram at position B in;

[0031] Figure 7 is a partial structural schematic diagram of a defect detection device and method for galvanized wire.

[0032] In the figure:

[0033] 100, installation unit; 101, base; 1011, support leg; 102, workbench; 1021, sliding door; 1022, installation notch; 1023, placement notch; 103, special-shaped plate; 104, motor protective housing;

[0034] 200, transmission unit; 201, servo motor; 2011, threaded rod; 2012, bearing; 2013, threaded sleeve; 2014, first chute; 2015, first slider; 202, fixed rod; 2021, L-shaped connecting rod; 2022, first connecting plate; 2023, second chute; 2024, second slider; 2025, special-shaped chute; 2026, guiding slider; 203, connecting plate; 2031, third chute; 2032, third slider; 2033, second connecting plate; 204, first limit block; 2041, positioning plate; 2042, telescopic rod; 2043, connecting block; 2044, second limit block; 205, L-shaped chute; 2051, moving slider;

[0035] 300. Positioning unit; 301. Limit plate; 3011. Eddy current sensor; 302. First clamping block; 3021. Second clamping block; 3022. First positioning block; 3023. Second positioning block; 303. Moving chute; 3031. Sliding block; 3032. Return spring. Detailed implementation manner

[0036] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments with reference to the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0037] Embodiment 1:

[0038] As Figures 1 to 7As shown, a defect detection device for galvanized wire includes an installation unit 100, a transmission unit 200, and a positioning unit 300. The installation unit 100 includes a workbench 102, a base 101 is installed at the bottom of the workbench 102, support legs 1011 are respectively arranged around the bottom of the base 101, two symmetrically arranged special-shaped plates 103 are installed above the workbench 102, a motor protective housing 104 is also arranged on one side wall of the workbench 102, a first clamping block 302 and a second clamping block 3021 are also arranged above the workbench 102, the first clamping block 302 and the second clamping block 3021 are symmetric with each other, a sliding door 1021 is arranged on the front side of the workbench 102, two symmetrically arranged installation notches 1022 are opened above the workbench 102, and a placement notch 1023 is opened in the middle of the workbench 102; the positioning unit 300 includes an eddy current sensor 3011, a first positioning block 3022, and a second positioning block 3023, the first positioning block 3022 and the second positioning block 3023 are symmetric with each other, fifth sliding mechanisms are arranged at the bottoms of the first positioning block 3022 and the second positioning block 3023, the fifth sliding mechanism includes two moving chutes 303, the two moving chutes 303 are symmetric with each other, sliding blocks 3031 are slidably installed in the inner cavities of the two moving chutes 303, one ends of the two sliding blocks 3031 are fixedly connected with return springs 3032, and the other ends of the two return springs 3032 are fixedly connected to one ends of the inner cavities of the moving chutes 303; the transmission unit 200 includes a driving component, a first limiting block 204, and a second limiting block 2044, the driving component is used to drive the first limiting block 204 and the second limiting block 2044 to move, and the driving component can also be used to drive the first positioning block 3022 and the second positioning block 3023 to move horizontally. By starting the driving component, the staff can first pre-clamp the galvanized wire near one end of the first clamping block 302 and the second clamping block 3021 through the driving component. At the same time, the first limiting block 204 and the second limiting block 2044 can also move with the assistance of the driving component, the L-shaped chute 205, and the moving slider 2051, so as to straighten the placed galvanized wire. At the same time, when the first limiting block 204 and the second limiting block 2044 move, they can also drive the eddy current sensor 3011 to move. Therefore, the straightened galvanized wire can be detected by the eddy current sensor 3011.

[0039] As Figure 3 and Figure 5 as well as Figure 7As shown in the figure, in the specific implementation, the driving component includes a servo motor 201. A threaded rod 2011 is fixedly installed at the output end of the servo motor 201. The threaded rod 2011 movably penetrates through the workbench 102. A bearing 2012 is provided at one end of the threaded rod 2011 away from the servo motor 201. The bearing 2012 is arranged on the inner wall of the workbench 102. A threaded sleeve 2013 is meshingly installed on the threaded rod 2011. A first sliding mechanism is provided at the bottom of the threaded sleeve 2013. In this setting, the installation position and components of the driving component are determined.

[0040] As Figure 3 shown, further, the first sliding mechanism includes a first sliding groove 2014. The first sliding groove 2014 is opened at the bottom of the workbench 102. A first slider 2015 is slidably installed in the inner cavity of the first sliding groove 2014. The upper end of the first slider 2015 is fixedly connected to the threaded sleeve 2013. In this setting, the installation position and components of the first sliding mechanism are determined, ensuring that the threaded sleeve 2013 can move horizontally.

[0041] As Figures 3 to 5 and Figure 7 shown, further, two symmetrically arranged fixed rods 202 are fixedly installed on the threaded sleeve 2013. L-shaped connecting rods 2021 are fixedly connected to opposite ends of the two fixed rods 202. The two L-shaped connecting rods 2021 are symmetrically arranged. The two L-shaped connecting rods 2021 respectively movably penetrate through the installation slots 1022. In this setting, the installation position and connection relationship of the L-shaped connecting plates 2021 are determined.

[0042] As Figures 1 to 7 shown, further, second sliding mechanisms are opened on the opposite side walls of the two special-shaped plates 103. The second sliding mechanism includes two special-shaped sliding grooves 2025. The two special-shaped sliding grooves 2025 are respectively opened on the special-shaped plates 103. The two special-shaped sliding grooves 2025 are symmetrically arranged. Guide sliders 2026 are slidably installed in the inner cavities of the two special-shaped sliding grooves 2025. The two guide sliders 2026 are symmetrically arranged. First connecting plates 2022 are fixedly connected to the opposite side walls of the two guide sliders 2026. In this setting, the installation position and components of the second sliding mechanism are determined.

[0043] Embodiment 2:

[0044] Based on the above embodiment, the difference from this embodiment is that as Figures 1 to 7As shown in the figure, a defect detection device for galvanized wire, two first connecting plates 2022 are symmetrical to each other, and third sliding mechanisms are arranged at the bottoms of the two first connecting plates 2022. The third sliding mechanism includes two second sliding grooves 2023, and the two second sliding grooves 2023 are respectively opened on the first connecting plate 2022. The two second sliding grooves 2023 are symmetrical to each other, and second sliders 2024 are slidably installed in the inner cavities of the two second sliding grooves 2023. L-shaped connecting rods 2021 are fixedly connected to the bottoms of the two second sliders 2024. In this setting, the installation position and components of the third sliding mechanism are determined.

[0045] As Figures 1 to 7 shown, in the specific implementation, a connecting plate 203 is fixedly connected to one side wall of the two first connecting plates 2022. The two connecting plates 203 are symmetrical to each other. Third sliding grooves 2031 are opened on the opposite side walls of the two connecting plates 203. The two third sliding grooves 2031 are symmetrical to each other. Third sliders 2032 are slidably installed in the inner cavities of the two third sliding grooves 2031. The two third sliders 2032 are symmetrical to each other. A second connecting plate 2033 is fixedly connected to the opposite side walls of the two third sliders 2032. The two second connecting plates 2033 are symmetrical to each other. In this setting, the installation position and components of the connecting plate 203 are determined.

[0046] As Figures 1 to 7 shown, further, a first limiting block 204 and a second limiting block 2044 are respectively fixedly connected to the opposite side walls of the two second connecting plates 2033. The first limiting block 204 and the second limiting block 2044 are symmetrical to each other. Two positioning plates 2041 are respectively fixedly connected above the two first limiting blocks 204 and the second limiting block 2044. Expansion rods 2042 are fixedly connected above the two positioning plates 2041. A connecting block 2043 is fixedly connected to the opposite side walls of the two expansion rods 2042. One end of the connecting block 2043 is fixedly connected to a limiting plate 301. An eddy current sensor 3011 is arranged at the bottom of the end of the limiting plate 301 away from the connecting block 2043. In this setting, the installation position of the eddy current sensor 3011 is determined, ensuring that the eddy current sensor 3011 can move horizontally.

[0047] As Figures 1 to 7 shown, further, two symmetrical L-shaped sliding grooves 205 are also opened on the workbench 102. Moving sliders 2051 are slidably installed in the two L-shaped sliding grooves 205. The two moving sliders 2051 are symmetrical to each other. A first limiting block 204 and a second limiting block 2044 are respectively fixedly connected above the two moving sliders 2051. In this setting, it is ensured that the first limiting block 204 and the second limiting block 2044 can first approach each other and then move horizontally.

[0048] Example 3:

[0049] The present invention also includes a method for detecting defects of galvanized wires, and the steps are as follows:

[0050] Step 1: First, the staff places the galvanized wire between the first clamping block 302 and the second clamping block 3021, and clamps it through the existing clamping components in the first clamping block 302 and the second clamping block 3021. When the clamping is completed, the staff then passes the other end of the galvanized wire through between the first positioning block 3022 and the second positioning block 3023;

[0051] Step 2: At this time, the staff starts the driving component, so that the driving component can drive the first limiting block 204 and the second limiting block 2044 to pre-clamp the galvanized wire near one end of the first clamping block 302 and the second clamping block 3021. At the same time, the first limiting block 204 and the second limiting block 2044 can also move with the assistance of the driving component, the L-shaped sliding groove 205 and the moving slider 2051, so as to straighten the placed galvanized wire;

[0052] Step 3: When the first limiting block 204 and the second limiting block 2044 move, they can also drive the eddy current sensor 3011 to move, so that the straightened galvanized wire can be detected by the eddy current sensor 3011.

[0053] The implementation principle of the defect detection device and method for galvanized wires in this embodiment is as follows:

[0054] First, the staff places the galvanized wire between the first clamping block 302 and the second clamping block 3021, and clamps it through the existing clamping components in the first clamping block 302 and the second clamping block 3021. When the clamping is completed, the staff then passes the other end of the galvanized wire through between the first positioning block 3022 and the second positioning block 3023;

[0055] At this time, the staff controls the operation of the servo motor 201 through the controller. When the servo motor 201 operates, it can drive the threaded rod 2011 to rotate. When the threaded rod 2011 rotates, the threaded rod 2011 will be able to drive the threaded sleeve 2013 to move horizontally with the assistance of the first chute 2014 and the first slider 2015. When the threaded sleeve 2013 moves horizontally, it can drive the L-shaped connecting rod 2021 through the fixed rod 202 to drive the second slider 2024 to move with the assistance of the second chute 2023, and at the same time, it can also drive the first connecting plate 2022 to move with the assistance of the special-shaped chute 2025 and the guiding slider 2026. Therefore, the two first connecting plates 2022 can first approach each other and then move horizontally. When the first connecting plate 2022 moves, it can drive the connecting plate 203 to move. When the connecting plate 203 moves, it can move through the third chute 2031, the third slider 2032 and the second connecting plate 2033. When the second connecting plate 2033 moves, it can drive the first limiting block 204 and the second limiting block 2044 to move respectively, so that the first limiting block 204 and the second limiting block 2044 first pre-clamp the galvanized wire near one end of the first clamping block 302 and the second clamping block 3021. At the same time, the first limiting block 204 and the second limiting block 2044 can also move with the assistance of the driving component, the L-shaped chute 205 and the moving slider 2051, so as to straighten the placed galvanized wire;

[0056] When the first limiting block 204 and the second limiting block 2044 move, they can also drive the positioning plate 2041, the telescopic rod 2042 and the connecting block 2043 to move. When the connecting block 2043 moves, it can drive the limiting plate 301 to move. When the limiting plate 301 moves, it can drive the eddy current sensor 3011 to move. Therefore, the straightened galvanized wire can be detected by the eddy current sensor 3011.

Claims

1. A defect detection device for galvanized wire, comprising an installation unit (100), a transmission unit (200) and a positioning unit (300), Characterized in that: The installation unit (100) includes a workbench (102), a base (101) is installed at the bottom of the workbench (102), support legs (1011) are respectively arranged around the bottom of the base (101), two symmetrical special-shaped plates (103) are installed above the workbench (102), a motor protective shell (104) is further arranged on one side wall of the workbench (102), a first clamping block (302) and a second clamping block (3021) are further arranged above the workbench (102), the first clamping block (302) and the second clamping block (3021) are symmetrical to each other, a sliding door (1021) is arranged on the front side of the workbench (102), two symmetrical installation notches (1022) are opened above the workbench (102), and a placement notch (1023) is opened in the middle of the workbench (102); The positioning unit (300) includes an eddy current sensor (3011), a first positioning block (3022) and a second positioning block (3023), the first positioning block (3022) and the second positioning block (3023) are symmetrical to each other, and fifth sliding mechanisms are arranged at the bottoms of the first positioning block (3022) and the second positioning block (3023), the fifth sliding mechanism includes two moving chutes (303), the two moving chutes (303) are symmetrical to each other, sliding blocks (3031) are slidably installed in the inner cavities of the two moving chutes (303), one ends of the two sliding blocks (3031) are fixedly connected with return springs (3032), and the other ends of the two return springs (3032) are fixedly connected to one ends of the inner cavities of the moving chutes (303); The transmission unit (200) includes a driving component, a first limiting block (204) and a second limiting block (2044), the driving component is used to drive the first limiting block (204) and the second limiting block (2044) to move, and the driving component can also be used to drive the first positioning block (3022) and the second positioning block (3023) to move horizontally.

2. The defect detection device for galvanized wire according to claim 1, Characterized in that, The driving component includes a servo motor (201), a threaded rod (2011) is fixedly installed at the output end of the servo motor (201), the threaded rod (2011) movably penetrates through the workbench (102), a bearing (2012) is arranged at the end of the threaded rod (2011) away from the servo motor (201), the bearing (2012) is arranged on the inner wall of the workbench (102), a threaded sleeve (2013) is meshed and installed on the threaded rod (2011), and a first sliding mechanism is arranged at the bottom of the threaded sleeve (2013).

3. The defect detection device for galvanized wire according to claim 2, Characterized in that, The first sliding mechanism includes a first sliding groove (2014) which is opened at the bottom of the workbench (102). A first sliding block (2015) is slidably installed in the inner cavity of the first sliding groove (2014), and the upper end of the first sliding block (2015) is fixedly connected to a threaded sleeve (2013).

4. An apparatus for detecting defects in galvanized wire according to claim 2, wherein, Two symmetrically arranged fixing rods (202) are fixedly installed on the threaded sleeve (2013). L-shaped connecting rods (2021) are fixedly connected to opposite ends of the two fixing rods (202). The two L-shaped connecting rods (2021) are symmetric with each other and respectively pass through the mounting notch (1022) movably.

5. An apparatus for detecting defects in galvanized wire according to claim 1, wherein, Second sliding mechanisms are provided on the opposite side walls of the two special-shaped plates (103). The second sliding mechanism includes two special-shaped sliding grooves (2025) which are respectively opened on the special-shaped plates (103). The two special-shaped sliding grooves (2025) are symmetric with each other. Guide sliding blocks (2026) are slidably installed in the inner cavities of the two special-shaped sliding grooves (2025). The two guide sliding blocks (2026) are symmetric with each other. First connecting plates (2022) are fixedly connected to the opposite side walls of the two guide sliding blocks (2026).

6. An apparatus for detecting defects in galvanized wire according to claim 5, wherein, The two first connecting plates (2022) are symmetric with each other. Third sliding mechanisms are provided at the bottoms of the two first connecting plates (2022). The third sliding mechanism includes two second sliding grooves (2023) which are respectively opened on the first connecting plates (2022). The two second sliding grooves (2023) are symmetric with each other. Second sliding blocks (2024) are slidably installed in the inner cavities of the two second sliding grooves (2023). L-shaped connecting rods (2021) are fixedly connected to the bottoms of the two second sliding blocks (2024).

7. An apparatus for detecting defects in galvanized wire according to claim 6, wherein, Connecting plates (203) are fixedly connected to one side walls of the two first connecting plates (2022). The two connecting plates (203) are symmetric with each other. Third sliding grooves (2031) are opened on the opposite side walls of the two connecting plates (203). The two third sliding grooves (2031) are symmetric with each other. Third sliding blocks (2032) are slidably installed in the inner cavities of the two third sliding grooves (2031). The two third sliding blocks (2032) are symmetric with each other. Second connecting plates (2033) are fixedly connected to the opposite side walls of the two third sliding blocks (2032). The two second connecting plates (2033) are symmetric with each other.

8. An apparatus for detecting defects in galvanized wire according to claim 7, wherein, On opposite side walls of the two second connecting plates (2033), a first limiting block (204) and a second limiting block (2044) are respectively fixedly connected. The first limiting block (204) and the second limiting block (2044) are symmetrical to each other. Above the two first limiting blocks (204) and the second limiting block (2044), two positioning plates (2041) are respectively fixedly connected. Above the two positioning plates (2041), expansion rods (2042) are fixedly connected. On opposite side walls of the two expansion rods (2042), a connecting block (2043) is fixedly connected. One end of the connecting block (2043) is fixedly connected with a limiting plate (301). At the bottom of the end of the limiting plate (301) away from the connecting block (2043), an eddy current sensor (3011) is provided.

9. A defect detection device for galvanized wire according to claim 1, characterized in that, Two symmetrical L-shaped sliding grooves (205) are further formed on the workbench (102). Two moving sliders (2051) are slidably installed in the two L-shaped sliding grooves (205). The two moving sliders (2051) are symmetrical to each other. Above the two moving sliders (2051), a first limiting block (204) and a second limiting block (2044) are respectively fixedly connected.

10. A method for detecting defects in galvanized wire, characterized in that, It is applied to a defect detection device for galvanized wire described in any one of claims 1 to 9. The method for detecting defects in galvanized wire is as follows: Step 1: First, the staff places the galvanized wire between the first clamping block (302) and the second clamping block (3021), and clamps it through the existing clamping components in the first clamping block (302) and the second clamping block (3021). When the clamping is completed, the staff then passes the other end of the galvanized wire through between the first positioning block (3022) and the second positioning block (3023); Step 2: At this time, the staff starts the driving component, so that the driving component can drive the first limiting block (204) and the second limiting block (2044) to pre-clamp the galvanized wire near one end of the first clamping block (302) and the second clamping block (3021). At the same time, the first limiting block (204) and the second limiting block (2044) can also move with the assistance of the driving component, the L-shaped sliding groove (205) and the moving slider (2051), so as to straighten the placed galvanized wire; Step 3: When the first limiting block (204) and the second limiting block (2044) move, they can also drive the eddy current sensor (3011) to move. Therefore, the straightened galvanized wire can be detected by the eddy current sensor (3011).

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