Zinc layer thickness control device for hot galvanizing of steel wire

Abstract

The invention discloses a steel wire hot galvanizing zinc layer thickness control device in the technical field of hot galvanizing, which comprises an adjusting bracket, a gas guide piece and an inclination angle control piece, the adjusting bracket is arranged on a mounting frame, and a plurality of guide supports capable of synchronously sliding are uniformly distributed in the inner ring circumferential direction of the adjusting bracket; the guide supports abut against each other and define a center through opening capable of being contracted and expanded. The gas guide parts are rotationally mounted in accommodating grooves formed in one sides of the guide supports, the gas guide parts are clamped between two adjacent groups of guide supports, and air outlets synchronously and radially displacing along with contraction and expansion of the guide supports are formed in one ends, close to the central axis of the adjusting bracket, of the gas guide parts; the inclination angle control piece is installed in the guide support in a sliding mode, and the installation frame is provided with a push-pull mechanism abutting against the two ends of the inclination angle control piece. The problems that a balance point is difficult to find, splashing exists and the thickness is out of control coexist due to the fact that an air opening and an inclination angle of an existing air knife used for steel wire hot galvanizing are fixed are solved.

Description

Technical Field

[0001] This invention relates to the field of hot-dip galvanizing technology, and more particularly to a device for controlling the thickness of the zinc layer in hot-dip galvanized steel wire. Background Technology

[0002] Galvanizing steel wire is a mature surface treatment process. Its purpose is to form a dense and continuous zinc layer on the surface of the steel wire, which significantly improves the corrosion resistance of the steel wire in atmospheric, seawater and industrial environments, thereby extending the service life of the steel wire. In the process of galvanizing steel wire, air blowing zinc removal is a technology used to control the thickness and quality of the zinc coating. It achieves closed-loop control of the coating thickness by shearing the surface of the zinc liquid with high-pressure nitrogen or compressed air.

[0003] The air knife used in existing hot-dip galvanizing processes for steel wire often has a fixed, integral rigid frame for its air outlet. Once installed, the radial distance between the air outlet and the steel wire axis is locked. When producing steel wires of different diameters, it is impossible to quickly adjust the radial distance online. If the distance is too large, the airflow shear force decreases, resulting in insufficient zinc layer thinning. If the distance is too small, the steel wire is prone to hitting the knife when it vibrates or expands due to temperature rise, causing wire breakage, zinc scraping, etc. Furthermore, the blowing direction of the air knife onto the steel wire surface is often fixed, and the fixed blowing angle leads to a narrow process window. When increasing the air volume to try to thin the zinc layer, the splashing of zinc liquid on the steel wire surface will be aggravated. Reducing the air volume cannot effectively achieve the target thickness reduction, thus creating a vicious cycle. It is difficult to quickly adjust to the balance point of controlling the zinc layer thickness during the steel wire galvanizing process. Therefore, those skilled in the art provide a steel wire hot-dip galvanizing zinc layer thickness control device to solve the problems mentioned in the background art. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of difficulty in finding the balance point, splashing, and uncontrolled thickness caused by the fixed air outlet and tilt angle of the air knife used in the hot-dip galvanizing of steel wire. Therefore, a zinc layer thickness control device for hot-dip galvanizing of steel wire is proposed.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for controlling the zinc layer thickness of hot-dip galvanized steel wire, comprising: An adjusting bracket is mounted on a mounting frame. Several guide supports that can slide synchronously are evenly distributed around the inner circumference of the adjusting bracket. The guide supports abut against each other and form a retractable and expandable central through-hole. A gas guide is rotatably installed in a receiving groove opened on one side of the guide support. The gas guide is clamped between two adjacent sets of guide supports, and an air outlet is formed at one end near the central axis of the adjusting bracket, which radially changes position synchronously with the expansion and contraction of the guide support. An inclination control component is slidably installed in a guide support. The mounting frame is provided with a push-pull mechanism that abuts against both ends of the inclination control component. The push-pull mechanism controls the inclination control component to slide within the guide support, so that the gas guide component rotates within the receiving groove.

[0006] As a further description of the above-mentioned device for controlling the thickness of hot-dip galvanized steel wire: The guide support includes guide sliders that abut against each other, and a slide rod connected to the adjustment bracket is rotatably mounted on the guide slider. Limit rings are snapped onto both ends of the slide rod.

[0007] As a further description of the above-mentioned device for controlling the thickness of hot-dip galvanized steel wire: The gas guide includes a gas guide rod rotatably installed in the guide slider receiving groove. The gas guide rod has a ventilation groove with one open end. The groove abuts against the side wall of the adjacent guide slider, together forming an air outlet that can radially shift as the guide slider expands and contracts.

[0008] As a further description of the above-mentioned device for controlling the thickness of hot-dip galvanized steel wire: The gas guide also includes a gas delivery pipe that communicates with the internal ventilation groove of the gas guide rod. A support frame for connecting the gas delivery pipe is fixedly installed on the gas guide rod, and the gas delivery pipe is connected to the tilt control component.

[0009] As a further description of the above-mentioned device for controlling the thickness of hot-dip galvanized steel wire: The tilt control component includes a collar slidably mounted on the outer ring of the gas pipeline, a U-shaped frame rotatably mounted on the collar, and round rods that slide and extend to the outside of the guide slider fixedly mounted on both sides of the U-shaped frame.

[0010] As a further description of the above-mentioned device for controlling the thickness of hot-dip galvanized steel wire: The push-pull mechanism includes two sets of movable frames that abut against the ends of the round rods. A connecting rod that slides through the mounting frame is fixedly installed between the two sets of movable frames. One set of movable frames is connected to a drive component that controls its displacement.

[0011] As a further description of the above-mentioned device for controlling the thickness of hot-dip galvanized steel wire: A spherical support is fixedly installed at the end of the round rod near the movable frame, and a ball bearing that abuts against the movable frame is rotatably installed inside the spherical support.

[0012] As a further description of the above-mentioned device for controlling the thickness of hot-dip galvanized steel wire: The adjusting bracket includes a positioning disc fixedly connected to the mounting frame and an adjusting disc rotatably connected. The positioning disc and the adjusting disc are respectively provided with a first sliding groove and a second sliding groove for the sliding rod to move. The limiting rings at both ends of the sliding rod respectively abut against the surfaces of the positioning disc and the adjusting disc.

[0013] As a further description of the above-mentioned device for controlling the thickness of hot-dip galvanized steel wire: An arc-shaped toothed segment is fixedly installed on the adjusting disc, and a hydraulic rod is fixedly installed on the mounting frame. A rack that meshes with multiple sets of arc-shaped toothed segments is fixedly installed at the output end of the hydraulic rod.

[0014] As a further description of the above-mentioned device for controlling the thickness of hot-dip galvanized steel wire: Multiple sets of auxiliary sliders can be detachably installed on the rack, and multiple sets of auxiliary rods that slide through the auxiliary sliders are provided in the mounting frame.

[0015] In summary, due to the adoption of the above-mentioned device for controlling the zinc layer thickness of hot-dip galvanized steel wire, the beneficial effects of this invention are: The traditional integral fixed air outlet is replaced by an iris-type synchronous expansion and contraction guide support and gas guide component. The guide support and gas guide component can expand and contract instantly during rotation adjustment, enabling stepless, online, and zero-lag adjustment of the radial distance between the gas guide component outlet and the steel wire. This fundamentally solves the problems of fixed air outlets requiring machine shutdown to disassemble and install gaskets and large thickness deviations caused by non-adjustable spacing. The gas guide component and guide support are designed to slide in close contact, making the air outlet itself a movable part. The outlet of the gas guide component moves radially in sync with the expansion and contraction of the guide support, forming an adjustable air outlet through mechanical contact. This also avoids sealing failure due to aging at high temperatures and reduces maintenance downtime caused by air outlet blockage or leakage. The further designed push-pull mechanism and tilt control component can control the rotation adjustment of the gas guide component, allowing the airflow direction to be switched arbitrarily between vertical and tangential. On-site, the optimal tilt angle of "maximum shear force and minimum splash" can be found in real time without interrupting airflow or the line, breaking through the deadlock of traditional fixed tilt angles that can only passively choose between "splash" and "droop". Attached Figure Description

[0016] Figure 1 This is a first schematic diagram of the overall structure of the present invention; Figure 2 This is a second schematic diagram of the overall structure of the present invention; Figure 3 This is a first sectional view of the overall structure of the present invention; Figure 4 This is a second sectional view of the overall structure of the present invention; Figure 5 This is a first schematic diagram of the adjusting bracket and its connecting structure of the present invention; Figure 6 This is a second schematic diagram of the adjusting bracket and its connecting structure of the present invention; Figure 7 This is a first schematic diagram of the structure of the guide support, gas guide, and tilt control component of the present invention. Figure 8 This is a second schematic diagram of the structure of the guide support, gas guide, and tilt control component of the present invention.

[0017] Legend: 10. Mounting frame; 11. Receiving groove; 12. Vent groove; 13. Spherical support; 14. Ball bearing; 15. Arc-shaped toothed segment; 16. Hydraulic rod; 17. Rack; 18. Auxiliary slider; 19. Auxiliary rod; 20. Adjusting bracket; 201. Positioning disc; 202. Adjusting disc; 203. First slide groove; 204. Second slide groove; 30. Guide support; 301. Guide slider; 302. Slide rod; 303. Limiting ring; 40. Gas guide component; 401. Gas guide rod; 402. Gas delivery pipe; 403. Support frame; 50. Tilt control component; 501. Collar; 502. U-shaped bracket; 503. Round rod; 60. Push-pull mechanism; 601. Movable frame; 602. Connecting rod; 603. Driving component. Detailed Implementation

[0018] The following will describe in detail, with reference to the accompanying drawings of the embodiments of the present invention, a device for controlling the zinc layer thickness of hot-dip galvanized steel wire. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figures 1-8As shown, the present invention provides a device for controlling the zinc layer thickness of hot-dip galvanized steel wire, comprising an adjusting bracket 20, a gas guide 40, and an angle control component 50, etc.; the adjusting bracket 20 is mounted on the mounting frame 10, and a plurality of synchronously sliding guide supports 30 are evenly distributed circumferentially inside the adjusting bracket 20. The guide supports 30 abut against each other and form a retractable central through-hole. The operation of the adjusting bracket 20 can control the movement of the plurality of guide supports 30 inside it to retract or expand the central through-hole; the gas guide 40 is rotatably mounted in a receiving groove 11 opened on one side of the guide support 30, and can be connected to an external gas conveying device. The gas guide 40 is clamped between two adjacent sets of guide supports 30. One end of the gas guide 40, which is close to the central axis of the adjusting bracket 20, forms an air outlet that radially shifts synchronously with the expansion and contraction of the guide support 30. The tilt control 50 is further slidably installed in the guide support 30. The mounting frame 10 is provided with a push-pull mechanism 60 that abuts against both ends of the tilt control 50. The push-pull mechanism 60 controls the tilt control 50 to slide in the guide support 30, so that the gas guide 40 rotates in the receiving groove 11. The radial distance and blowing tilt angle between the air outlet of the device and the steel wire passing through its central through-hole can be flexibly adjusted.

[0020] In practical use, the zinc coating thickness control device is fixed to the steel wire galvanizing conveyor line via the mounting frame 10, allowing the horizontally, vertically, or inclined steel wire to pass through the central through-hole of the device. Preferably, the device is arranged so that the galvanized steel wire passes vertically through the central through-hole, effectively preventing zinc liquid from clogging the air outlet. Multiple sets of equally spaced adjusting brackets 20 can be installed within the mounting frame 10 for batch hot-dip galvanizing of steel wire. When the device is suitable for different sizes or different zinc coating thicknesses, the radial distance between the air outlet of the gas guide 40 and the central axis of the steel wire can be adjusted via the adjusting brackets 20 and guide supports 30. The push-pull mechanism 60 can drive the gas guide 40 to rotate via the tilt control component 50, allowing the device to deliver air to the steel wire surface at the desired tilt angle.

[0021] Precise control of the distance between the steel wire and the air outlet allows for precise control of the zinc layer thickness. Under constant operating speed conditions in the zinc pot section of the steel wire production line, the same amount of molten zinc will be carried away from the wire surface. With other factors such as constant gas pressure, the smaller the distance between the air outlet and the steel wire, the more molten zinc will be blown away. Therefore, when speed and pressure are constant, adjusting the distance between the air outlet and the steel wire can increase or decrease the zinc layer thickness. Changing the blowing angle adjusts the frontal impact force of the airflow, preventing molten zinc from being blown away, significantly reducing surface pitting and bare wire defects, and effectively controlling the smoothness. Adjusting the tilt angle enhances tangential shearing, allowing more molten zinc to be scraped away under the same air pressure, reducing zinc consumption. Key parameters such as the distance and angle between the air outlet and the steel wire surface have a significant impact on the zinc layer thickness and uniformity. Reasonable control of various process parameters and balanced correlation accuracy can effectively improve the uniformity of the zinc layer on the steel wire surface and the accuracy of the actual thickness.

[0022] In one embodiment, such as Figures 1-8 As shown, the operating principle of the guide support 30 combined with the adjusting bracket 20 can be referred to the corresponding iris mechanical mechanism in the prior art. In order to realize the combination of the guide support 30 and the gas guide 40, the guide support 30 specifically includes guide sliders 301 that abut against each other. The abutting part of the guide sliders 301 can be fan-shaped, and one side of the fan-shaped part is provided with a receiving groove 11 for the gas guide 40 to be adjusted. A slide rod 302 that connects to the adjusting bracket 20 is rotatably mounted on the guide slider 301. The rotational connection between the above components can be realized by bearings. Limit rings 303 are snapped on both ends of the slide rod 302. The limit rings 303 can assist the positioning of the slide rod 302 in the adjusting bracket 20 and improve the reliability of the device.

[0023] like Figures 3-7 As shown, the corresponding gas guide 40 includes a gas guide rod 401 rotatably mounted in the receiving groove 11 of the guide slider 301, and a venting groove 12 with one open end is formed in the gas guide rod 401, such as... Figure 7 As shown, the end of the air guide rod 401 near the central axis of the adjusting bracket 20 is open, and the contact surface between the air vent 12 and the adjacent guide slider 301 is a groove, that is, the groove abuts against the side wall of the adjacent guide slider 301, together forming an air outlet that can radially shift as the guide slider 301 expands and contracts. Furthermore, the gas guide component 40 also includes an air supply pipe 402 communicating with the air vent 12 inside the air guide rod 401. The air supply pipe 402 can be a rigid metal pipe, and its end can be connected to an external gas delivery device through a hose or other components. A support frame 403 for connecting the air supply pipe 402 is fixedly installed on the air guide rod 401. The support frame 403 can be welded to both the outer ring of the air supply pipe 402 and the end of the air guide rod 401. The air supply pipe 402 is connected to the tilt control component 50.

[0024] During the expansion and contraction adjustment process, the guide slider 301 can drive the overall displacement of the air guide rod 401. The open side of the air guide rod 401 is always in close contact with the side wall of the adjacent guide slider 301. Therefore, the blocking area of ​​the adjacent guide slider 301 on the air passage 12 of the air guide rod 401 changes accordingly. The blocking position of the inner circle of the adjacent guide slider 301 on the air passage 12 of the air guide rod 401 is the air outlet. Thus, the distance between the air outlet and the central axis of the steel wire changes synchronously with the movement of the guide slider 301, completing the zero-lag radial adjustment of the air outlet. The contact surfaces of the guide slider 301 and the air guide rod 401 can be mirror-polished, and an interference sliding clearance of 0.02mm-0.05mm is maintained between them to prevent high-pressure gas from leaking from the contact surface and to avoid thermal expansion jamming.

[0025] Based on the above embodiments, such as Figures 3-8 As shown, to achieve the tilt adjustment of the air guide rod 401, specifically, the tilt control component 50 includes a collar 501 slidably mounted on the outer ring of the air supply pipe 402. The collar 501 can be a linear bearing as used in the prior art. A U-shaped frame 502 is rotatably mounted on the collar 501. The two can be hinged in the rotatable mounting manner. Round rods 503 that slide to the outside of the guide slider 301 are fixedly mounted on both sides of the U-shaped frame 502. When the round rods 503 push the U-shaped frame 502 to slide in the receiving groove 11, the U-shaped frame 502 can drive the collar 501 to move so that the air guide rod 401 rotates. After the air passage groove 12 inside the air guide rod 401 is rotated and adjusted, the gas delivered to its interior can be blown to the steel wire surface at a corresponding angle.

[0026] like Figures 1-6 As shown, to control the sliding of the round rod 503 within the guide slider 301, the push-pull mechanism 60 includes two sets of movable frames 601 abutting the ends of the round rod 503. A connecting rod 602, which slides through the mounting frame 10, is fixedly installed between the two sets of movable frames 601. One set of movable frames 601 is connected to a drive member 603 that controls its displacement. The drive member 603 can be an existing structure such as an electric telescopic rod or a connecting rod, used to pull the two sets of movable frames 601 and the connecting rod 602 to slide linearly. When the two sets of movable frames 601 move, they can push the multiple sets of round rods 503 arranged between them to adjust synchronously.

[0027] Furthermore, a spherical support 13 is fixedly installed at the end of the round rod 503 near the movable frame 601. A ball bearing 14 is rotatably installed inside the spherical support 13 to abut against the movable frame 601. When the two sets of movable frames 601 are fixed, the round rod 503 moves together with the adjustment of the guide slider 301. The end of the round rod 503 can drive the ball bearing 14 to roll on the surface of the movable frame 601 through the spherical support 13. By setting the spherical support 13 and the ball bearing 14, the smoothness and stability of the device adjustment can be improved.

[0028] In one embodiment, such as Figures 1-6 As shown, to achieve the expansion and contraction adjustment of the guide support 30, specifically, the adjustment bracket 20 includes a positioning disc 201 fixedly connected to the mounting frame 10 and an adjustment disc 202 rotatably connected. The rotatable connection between the adjustment disc 202 and the mounting frame 10 can be achieved through bearings. The positioning disc 201 and the adjustment disc 202 are respectively provided with a first slide groove 203 and a second slide groove 204 for the slide rod 302 to move. The limiting rings 303 at both ends of the slide rod 302 respectively abut against the surfaces of the positioning disc 201 and the adjustment disc 202. The rotation of the adjustment disc 202 can drive the slide rod 302 to slide in the first slide groove 203 through the second slide groove 204, which can realize the expansion and contraction adjustment of multiple sets of slide rods 302 and their connected guide sliders 301.

[0029] The adjusting disc 202 is fixedly equipped with an arc-shaped toothed segment 15, and the mounting frame 10 is fixedly equipped with a hydraulic rod 16. The output end of the hydraulic rod 16 is fixedly equipped with a rack 17 that meshes with multiple sets of arc-shaped toothed segments 15. Driving the hydraulic rod 16 can cause the rack 17 to move linearly, and the rack 17 can cause multiple sets of arc-shaped toothed segments 15 and the connected adjusting disc 202 to rotate synchronously. Furthermore, multiple sets of auxiliary sliders 18 are detachably mounted on the rack 17, and multiple sets of auxiliary rods 19 that slide through the auxiliary sliders 18 are provided within the mounting frame 10. When the rack 17 moves, it can cause the auxiliary sliders 18 to slide on the auxiliary rods 19, which can improve the stability of the rotation adjustment of the adjusting disc 202.

[0030] This device upgrades the traditional fixed air outlet to an online stepless variable diameter and angle annular air knife; the hydraulic rod 16 and rack 17 drive the adjusting disk 202 to quickly complete the synchronous expansion and contraction of the full-ring guide slider 301, achieving zero-lag setting of the radial distance between the air outlet and the steel wire; the push-pull mechanism 60 drives the air guide rod 401 to rotate through the round rod 503, collar 501 and other structures, the tilt angle of the air guide rod 401 is continuously adjustable, the airflow can be gradually controlled to regulate the tangential shear force, and splashing and dripping can be eliminated simultaneously; the dual closed loop of distance and angle improves the control accuracy of zinc layer thickness, while reducing surface roughness and zinc consumption to a certain extent, providing a compact, efficient and precise thickness control solution for hot-dip galvanizing of steel wire.

[0031] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the present invention's technical concept of a hot-dip galvanized steel wire zinc layer thickness control device, should be covered within the scope of protection of the present invention.

Claims

1. A device for controlling the thickness of the hot-dip galvanized zinc layer on steel wire, characterized in that, include: An adjusting bracket (20) is set on the mounting frame (10). Several guide supports (30) that can slide synchronously are evenly distributed around the inner circumference of the adjusting bracket (20). The guide supports (30) abut against each other and form a retractable and expandable central through-hole. Gas guide (40) is rotatably installed in the receiving groove (11) opened on one side of the guide support (30). The gas guide (40) is clamped between two adjacent sets of guide supports (30). One end of the gas guide (40) near the central axis of the adjusting bracket (20) forms an air outlet that radially changes position synchronously with the expansion and contraction of the guide support (30). An inclination control component (50) is slidably installed in a guide support (30). The mounting frame (10) is provided with a push-pull mechanism (60) that abuts against both ends of the inclination control component (50). The push-pull mechanism (60) controls the inclination control component (50) to slide in the guide support (30) so that the gas guide component (40) rotates in the receiving groove (11).

2. The device for controlling the zinc layer thickness of hot-dip galvanized steel wire according to claim 1, characterized in that: The guide support (30) includes guide sliders (301) that abut against each other. A slide rod (302) that connects to the adjustment bracket (20) is rotatably mounted on the guide slider (301). Limit rings (303) are snapped onto both ends of the slide rod (302).

3. The device for controlling the zinc layer thickness of hot-dip galvanized steel wire according to claim 2, characterized in that: The gas guide (40) includes a gas guide rod (401) rotatably installed in the receiving groove (11) of the guide slider (301). The gas guide rod (401) has a ventilation groove (12) with one end open. The groove abuts against the side wall of the adjacent guide slider (301) and together they form an air outlet that can be radially displaced as the guide slider (301) expands and contracts.

4. The device for controlling the zinc layer thickness of hot-dip galvanized steel wire according to claim 3, characterized in that: The gas guide (40) also includes a gas delivery pipe (402) that communicates with the gas channel (12) inside the gas guide rod (401). A support frame (403) for connecting the gas delivery pipe (402) is fixedly installed on the gas guide rod (401). The gas delivery pipe (402) is connected to the tilt control component (50).

5. The device for controlling the zinc layer thickness of hot-dip galvanized steel wire according to claim 4, characterized in that: The tilt control component (50) includes a collar (501) slidably mounted on the outer ring of the gas pipe (402), a U-shaped frame (502) rotatably mounted on the collar (501), and round rods (503) that slide and extend to the outside of the guide slider (301) are fixedly mounted on both sides of the U-shaped frame (502).

6. The device for controlling the zinc layer thickness of hot-dip galvanized steel wire according to claim 5, characterized in that: The push-pull mechanism (60) includes two sets of movable frames (601) that abut against the ends of the round rod (503). A connecting rod (602) of a sliding through-mounted frame (10) is fixedly installed between the two sets of movable frames (601). One set of movable frames (601) is connected to a drive member (603) that controls its displacement.

7. The device for controlling the zinc layer thickness of hot-dip galvanized steel wire according to claim 6, characterized in that: A spherical support (13) is fixedly installed at the end of the round rod (503) near the movable frame (601), and a ball bearing (14) that abuts against the movable frame (601) is rotatably installed inside the spherical support (13).

8. A device for controlling the zinc layer thickness of hot-dip galvanized steel wire according to claim 2 or 4, characterized in that: The adjustment bracket (20) includes a positioning disc (201) fixedly connected to the mounting frame (10) and an adjustment disc (202) rotatably connected. The positioning disc (201) and the adjustment disc (202) are respectively provided with a first groove (203) and a second groove (204) for the slide rod (302) to move. The limiting rings (303) at both ends of the slide rod (302) respectively abut against the surfaces of the positioning disc (201) and the adjustment disc (202).

9. The device for controlling the zinc layer thickness of hot-dip galvanized steel wire according to claim 8, characterized in that: An arc-shaped toothed segment (15) is fixedly installed on the adjusting disc (202), and a hydraulic rod (16) is fixedly installed on the mounting frame (10). A rack (17) that meshes with multiple sets of arc-shaped toothed segments (15) is fixedly installed at the output end of the hydraulic rod (16).

10. The device for controlling the zinc layer thickness of hot-dip galvanized steel wire according to claim 9, characterized in that: Multiple sets of auxiliary sliders (18) are detachably installed on the rack (17), and multiple sets of auxiliary rods (19) that slide through the auxiliary sliders (18) are provided in the mounting frame (10).

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