A galvanizing device capable of adjusting the thickness of a zinc layer

Abstract

The application discloses a galvanizing device capable of adjusting the thickness of zinc layer, which comprises a galvanizing box, wherein a heater is installed at the lower end of the galvanizing box, import and export openings are formed on the two sides of the galvanizing box, a switching mechanism is arranged on one side in the galvanizing box, and an adjusting galvanizing mechanism is arranged in the galvanizing box; the switching mechanism comprises a rotating cylinder, an adjusting plate, a circular through hole, a circular ring limiting plate and a notch; and the adjusting galvanizing mechanism comprises a moving table, a driving frame, a connecting frame, a galvanizing channel, a fixing rod, a fixing plate, a circular port, a circulating pump, a liquid inlet pipe and a liquid outlet pipe. The application has the beneficial effects that the length of the higher part of the liquid level of zinc liquid in the galvanizing channel can be changed by adjusting the position of the adjusting plate, the time of the reinforcing steel bars staying in the zinc liquid can be changed, the thickness of the zinc layer can be conveniently adjusted, the adjusting plate can be rotated and replaced according to the diameter of the reinforcing steel bars by the rotating cylinder, the replacement of the staff is not needed, and the automation degree and the work efficiency are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of galvanizing equipment, in particular to a galvanizing device capable of adjusting the thickness of zinc layer. BACKGROUND

[0002] By galvanizing the outside of the steel bar coil, the service life of the steel bar can be prolonged. The galvanizing methods are generally electro-galvanizing and hot-dip galvanizing. Hot-dip galvanizing is to immerse the steel member into molten zinc to obtain a metal coating. The production speed is fast, the coating thickness is large, and the corrosion resistance is strong.

[0003] In the prior art, when the steel bar coil is hot-dip galvanized, the steel bar is generally straightened by a straightening device, and then the steel bar is moved from the zinc liquid in the inside of the galvanizing box by a traction device, so that the steel bar can be galvanized. However, there are some problems in use. Since the quality requirements of the steel bar are different, the thickness requirements of the galvanizing are also different. The existing device is not convenient for adjusting the thickness of the galvanizing, and is not convenient to use.

[0004] It should be noted that the above content belongs to the technical cognition of the inventor and does not necessarily constitute the prior art. SUMMARY

[0005] The present application relates to the technical field of galvanizing equipment, in particular to a galvanizing device capable of adjusting the thickness of zinc layer.

[0006] To achieve the above-mentioned purpose, the technical scheme of the present application is a galvanizing device capable of adjusting the thickness of zinc layer, comprising a galvanizing box, a heater is installed at the lower end of the galvanizing box, an inlet and an outlet are opened on both sides of the galvanizing box, the steel bar coil to be galvanized can enter and exit from the inlet and outlet, a switching mechanism is arranged on one side of the galvanizing box, and an adjusting galvanizing mechanism is arranged in the galvanizing box.

[0007] The switching mechanism comprises a rotating cylinder arranged on one side of the galvanizing box, a first rolling bearing is installed on the rotating cylinder, the first rolling bearing is installed on the inner side of the galvanizing box through a plurality of supporting rods, a plurality of adjusting plates are arranged on one side of the rotating cylinder, a circular hole is opened on the adjusting plate, the sizes of the circular holes on the plurality of adjusting plates are different, the steel bar coil can pass through the circular hole, a circular ring limiting plate is arranged on the front side of the rotating cylinder, a notch is opened at the lower end of the circular ring limiting plate, and the adjusting plate is located between the circular ring limiting plate and the rotating cylinder.

[0008] The galvanizing adjustment mechanism includes a movable platform located inside the galvanizing box. A drive frame is installed on the galvanizing box, which can drive the movable platform to move back and forth. A connecting frame is installed at the lower end of the movable platform, which can grab the adjustment plate at the notch. A galvanizing channel is provided at the lower end of the galvanizing box. The lower end of the galvanizing channel is installed inside the galvanizing box by multiple fixed rods. A fixed plate is installed on the side of the galvanizing channel away from the rotating cylinder. A circular opening is opened on the fixed plate, through which steel wire rods can pass. The adjustment plate can move within the galvanizing channel via the movable platform and the connecting frame. When the movable platform moves back and forth, it can drive the rotating cylinder to rotate unidirectionally via the transmission frame. A circulation pump is installed inside the galvanizing box. An inlet pipe is installed at the inlet end of the circulation pump, extending to the lower end of the galvanizing box. An outlet pipe is installed at the outlet end of the circulation pump, extending to the upper end of the galvanizing channel near the fixed plate.

[0009] Furthermore, the drive frame includes a support plate installed on the outside of the galvanizing box. A servo motor is installed on the upper end of the support plate. The rotating end of the servo motor is connected to a rotating screw through a coupling. Second rolling bearings are installed at both ends of the rotating screw. The second rolling bearings are installed inside the galvanizing box. One end of the rotating screw extends into the inside of the galvanizing box. A threaded through hole is opened on the moving table. The rotating screw and the threaded through hole are connected by threads. A guide hole is opened at the lower end of the moving table. A guide rod is provided in the guide hole. Both ends of the guide rod are connected to the inner surface of the galvanizing box.

[0010] Furthermore, the transmission frame includes a first bevel gear mounted on the outside of the rotating cylinder, the first bevel gear meshing with a second bevel gear, a transmission shaft mounted on the second bevel gear, third rolling bearings mounted at both ends of the transmission shaft, the third rolling bearings being mounted inside the galvanized box via fixed columns, a one-way bearing mounted at the lower end of the transmission shaft, a rotating gear mounted on the outside of the one-way bearing, the rotating gear meshing with a movable rack, and the movable rack mounted on one side surface of the moving table.

[0011] Furthermore, the adjusting plate includes a baffle located on one side of the rotating cylinder. An arc-shaped block is installed on the side of the baffle close to the rotating cylinder. Multiple arc-shaped blocks are distributed circumferentially on the inner side of the rotating cylinder without gaps between them. A guide groove is opened on the arc-shaped block, and an L-shaped guide block is provided in the guide groove. One end of the L-shaped guide block is installed on the inner surface of the rotating cylinder. A circular through hole is located on the baffle. An overflow port is opened on the side of the circular through hole close to the rotating cylinder. Multiple connecting holes are opened on the upper side of the arc-shaped block.

[0012] Furthermore, the connecting frame includes a fixed block installed on one side of the lower surface of the moving platform, a spring telescopic rod installed on one side of the fixed block, a universal ball installed at the lower end of the telescopic end of the spring telescopic rod, a top rod installed at the upper end of the telescopic end of the spring telescopic rod, and multiple L-shaped limiting rods installed on the other side of the lower surface of the moving platform. The connecting hole is located on the arc-shaped block on the side near the L-shaped limiting rod.

[0013] Furthermore, an arc-shaped groove is provided on one side of the arc-shaped block, into which the universal ball bearings can enter.

[0014] Furthermore, a ratchet is mounted on the upper end of the drive shaft, and a pawl is connected to the upper end of the ratchet. The pawl is mounted on the fixed post above.

[0015] Furthermore, a feeding box is installed on one side of the upper end of the galvanizing box, and zinc blocks are placed inside the feeding box. A feeding port is provided on one side of the feeding box and a protective door is installed at the feeding port. A square box is installed at the lower end of the feeding port and multiple liquid permeation holes are opened on the square box.

[0016] The beneficial effects of this invention are as follows: A circulating pump can draw molten zinc from the galvanizing tank into the galvanizing channel. Moving the adjusting plate into the galvanizing channel allows the level of the molten zinc to rise and move above the reinforcing bars, facilitating galvanizing. Adjusting the position of the adjusting plate changes the length of the higher portion of the molten zinc level in the galvanizing channel, thereby changing the retention time of the reinforcing bars in the molten zinc and facilitating adjustment of the zinc layer thickness. Rotating the cylinder drives the adjusting plate to rotate, and the adjusting plate can be replaced according to the diameter of the reinforcing bars, eliminating the need for manual replacement and improving automation and work efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a zinc plating device with adjustable zinc layer thickness according to the present invention;

[0018] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0019] Figure 3 yes Figure 1 A magnified view of a section at point B in the middle;

[0020] Figure 4 yes Figure 1 A magnified view of a section at point C;

[0021] Figure 5 This is a partial cross-sectional view of the zinc plating device with adjustable zinc layer thickness according to the present invention from the side view direction;

[0022] Figure 6 yes Figure 5 A magnified view of a section at point D;

[0023] Figure 7 This is a schematic diagram showing the positional relationship between the annular limiting plate and the adjusting plate described in this invention;

[0024] Figure 8 yes Figure 7 A magnified view of a section at point E in the middle;

[0025] Figure 9 This is a schematic diagram showing the connection relationship between the galvanized box and the square box body described in this invention;

[0026] In the diagram, 1. Galvanizing box; 2. Heater; 3. Inlet / outlet; 4. Rotating cylinder; 5. First rolling bearing; 6. Support rod; 7. Adjusting plate; 8. Circular through hole; 9. Circular limiting plate; 10. Notch; 11. Moving table; 12. Drive frame; 13. Connecting frame; 14. Galvanizing channel; 15. Fixed rod; 16. Fixed plate; 17. Circular opening; 18. Transmission frame; 19. Circulating pump; 20. Inlet pipe; 21. Outlet pipe; 22. Support plate; 23. Servo motor; 24. Rotating screw; 25. Second rolling bearing; 26. Threaded through hole; 27. Guide hole; 28. Guide... 29. First bevel gear; 30. Second bevel gear; 31. Drive shaft; 32. Third rolling bearing; 33. One-way bearing; 34. Rotating gear; 35. Moving rack; 36. Baffle; 37. Arc block; 38. Guide groove; 39. L-shaped guide block; 40. Overflow port; 41. Connecting hole; 42. Fixing block; 43. Spring telescopic rod; 44. Universal ball bearing; 45. Top rod; 46. L-shaped limit rod; 47. Arc groove; 48. Ratchet; 49. Pawl; 50. Feed box; 51. Feed port; 52. Protective gate; 53. Square box; 54. Liquid permeation hole. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

[0028] In the description of this invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, in the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] This invention provides, for example Figures 1-9The galvanizing device with adjustable zinc coating thickness shown includes a galvanizing box 1, a heater 2 installed at the lower end of the galvanizing box 1, and inlets and outlets 3 on both sides of the galvanizing box 1, through which the steel wire rods to be galvanized can enter and exit. A switching mechanism is provided on one side of the galvanizing box 1, and an adjusting galvanizing mechanism is provided inside the galvanizing box 1. The switching mechanism includes a rotating cylinder 4 located on one side of the galvanizing box 1, on which a first rolling bearing 5 is installed. The first rolling bearing 5 is installed inside the galvanizing box 1 via multiple support rods 6. Multiple adjusting plates 7 are provided on one side of the rotating cylinder 4, and circular through holes 8 are opened on the adjusting plates 7. The circular through holes 8 on the multiple adjusting plates 7 are of different sizes, and the steel wire rods can pass through the circular through holes 8. A circular limiting plate 9 is provided on the front side of the rotating cylinder 4, and a notch 10 is opened at the lower end of the circular limiting plate 9. The adjusting plate 7 is located between the circular limiting plate 9 and the rotating cylinder 4. The adjusting galvanizing mechanism includes a movable table 11 located inside the galvanizing box 1, on which a... The drive frame 12 drives the moving platform 11 to move back and forth. A connecting frame 13 is installed at the lower end of the moving platform 11. The connecting frame 13 can grab the adjusting plate 7 at the notch 10. A galvanizing channel 14 is provided at the lower end of the galvanizing box 1. The lower end of the galvanizing channel 14 is installed in the galvanizing box 1 by multiple fixing rods 15. A fixing plate 16 is installed on the side of the galvanizing channel 14 away from the rotating cylinder 4. A circular opening 17 is opened on the fixing plate 16, and the steel bar can pass through the circular opening 17. The adjusting plate 7 can move within the galvanizing channel 14 via the moving platform 11 and the connecting frame 13. When the moving platform 11 moves back and forth, it can drive the rotating cylinder 4 to rotate in one direction via the transmission frame 18. A circulating pump 19 is installed inside the galvanizing box 1. An inlet pipe 20 is installed at the inlet end of the circulating pump 19. The inlet end of the inlet pipe 20 extends to the lower end of the galvanizing box 1. An outlet pipe 21 is installed at the outlet end of the circulating pump 19. The outlet end of the outlet pipe 21 extends to the upper end of the galvanizing channel 14 near the fixed plate 16.

[0030] The galvanizing process of this device for steel wire rods is as follows: Zinc blocks are added to the galvanizing tank 1. The heater 2 heats the inside of the galvanizing tank 1, melting it into molten zinc. Under normal conditions, the drive frame 12 moves the moving platform 11, causing the connecting frame 13 to move to the notch 10. At this time, an adjusting plate 7 is positioned between the connecting frames 13. The drive frame 12 drives the moving platform 11 to move back and forth, allowing the moving platform 11 to drive the rotating cylinder 4 to rotate via the transmission frame 18. The circular limiting plate 9 can limit the adjusting plate 7 to prevent it from falling. When the adjusting plate 7, corresponding to the diameter of the steel bar, rotates to the notch 10, the connecting frame 13 grabs the adjusting plate 7. Then, the drive frame 12 moves the moving platform 11, connecting frame 13, and adjusting plate 7 into the galvanizing channel 14. The adjusting plate 7 is moved to the designated position according to the required galvanizing thickness. The circulation pump 19 is started, pumping liquid from the galvanizing tank 1 through the inlet pipe 20. The molten zinc is drawn from the end and discharged into the galvanizing channel 14 through the outlet pipe 21. As the molten zinc level rises in the galvanizing channel 14, it gradually flows out from the round opening 17 and the round through hole 8. After the molten zinc is discharged from the round through hole 8, since there is no obstruction behind the adjusting plate 7 in the galvanizing channel 14, the molten zinc can quickly flow into the galvanizing box 1. This results in a higher molten zinc level between the fixed plate 16 and the adjusting plate 7, and a lower molten zinc level behind the adjusting plate 7 in the galvanizing channel 14, which facilitates the galvanizing of the reinforcing bars. When it is necessary to adjust the thickness of the zinc layer, simply change the position of the adjusting plate 7, and then straighten the reinforcing bar so that it passes through the inlet / outlet 3, the round opening 17, and the round through hole 8, which facilitates the galvanizing of the reinforcing bars. When galvanizing reinforcing bars of different diameters, different adjusting plates 7 can be replaced. The different sizes of round through holes 8 on the different adjusting plates 7 facilitate the control of the discharge speed of the molten zinc.

[0031] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 2 Instruction manual attached Figure 4 Instruction manual attached Figure 5 Included with instruction manual Figure 6 The drive frame 12 includes a support plate 22 installed on the outside of the galvanizing box 1. A servo motor 23 is installed on the upper end of the support plate 22. The rotating end of the servo motor 23 is connected to a rotating screw 24 through a coupling. Second rolling bearings 25 are installed at both ends of the rotating screw 24. The second rolling bearings 25 are installed inside the galvanizing box 1. One end of the rotating screw 24 extends into the inside of the galvanizing box 1. A threaded through hole 26 is opened on the moving table 11. The rotating screw 24 and the threaded through hole 26 are connected by threads. A guide hole 27 is opened at the lower end of the moving table 11. A guide rod 28 is provided in the guide hole 27. The two ends of the guide rod 28 are connected to the inner surface of the galvanizing box 1.

[0032] The process of the drive frame 12 driving the moving stage 11 to move is as follows: the servo motor 23 is started to rotate, and the servo motor 23 can drive the rotating screw 24 to rotate through the coupling. The rotating screw 24 and the threaded through hole 26 are connected by threads, which can drive the moving stage 11 to move. The guide rod 28 and the guide hole 27 can ensure the moving direction of the moving stage 11. By changing the forward and reverse rotation of the servo motor 23, the moving stage 11 can be made to move back and forth.

[0033] Refer to the instruction manual appendix Figure 1 Included with instruction manual Figure 2 The transmission frame 18 includes a first bevel gear 29 installed on the outside of the rotating cylinder 4. The first bevel gear 29 meshes with a second bevel gear 30. A transmission shaft 31 is installed on the second bevel gear 30. Third rolling bearings 32 are installed at both ends of the transmission shaft 31. The third rolling bearings 32 are installed inside the galvanized box 1 through fixed columns. A one-way bearing 33 is installed at the lower end of the transmission shaft 31. A rotating gear 34 is installed on the outside of the one-way bearing 33. The rotating gear 34 meshes with a moving rack 35. The moving rack 35 is installed on one side surface of the moving table 11.

[0034] The process by which the moving stage 11 drives the rotating sleeve 4 to rotate via the transmission frame 18 is as follows: When the moving stage 11 moves towards the servo motor 23, the moving rack 35 first meshes with the rotating gear 34, driving the rotating gear 34, the one-way bearing 33, the transmission shaft 31, and the second bevel gear 30 to rotate. The second bevel gear 30 meshes with the first bevel gear 29, driving the first bevel gear 29 and the rotating cylinder 4 to rotate, thus facilitating the movement of the next adjusting plate 7 to the notch 10. Then, the moving stage 11 moves away from the servo motor 23. The movement allows the moving rack 35 to move, and through the meshing of the moving rack 35 with the rotating gear 34, the rotating gear 34 and the one-way bearing 33 can be driven to rotate outside the transmission shaft 31, preventing the transmission shaft 31 from rotating, and thus preventing the rotating cylinder 4 from rotating. By moving the moving table 11 back and forth, the rotating cylinder 4 can be rotated, and the position of the adjusting plate 7 can be changed. When the corresponding adjusting plate 7 is selected, the adjusting plate 7 is grabbed by the connecting frame 13 and moved by the moving table 11.

[0035] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 2 Instruction manual attached Figure 3 Instruction manual attached Figure 5 Included with instruction manual Figure 6The adjusting plate 7 includes a baffle 36 located on one side of the rotating cylinder 4. An arc-shaped block 37 is installed on the side of the baffle 36 near the rotating cylinder 4. Multiple arc-shaped blocks 37 are distributed in a circle on the inner side of the rotating cylinder 4 without gaps between them. A guide groove 38 is opened on the arc-shaped block 37. An L-shaped guide block 39 is provided in the guide groove 38. One end of the L-shaped guide block 39 is installed on the inner surface of the rotating cylinder 4. A circular through hole 8 is located on the baffle 36. An overflow port 40 is opened on the side of the circular through hole 8 near the rotating cylinder 4. Multiple connecting holes 41 are opened on the upper side of the arc-shaped block 37.

[0036] The process of rotating the cylinder 4 and driving the adjusting plate 7 to rotate is as follows: When the cylinder 4 rotates, the arc block 37 can be driven to rotate along with the cylinder 4 through the L-shaped guide block 39 and the guide groove 38. The arc block 37 can drive the baffle 36 to rotate. When the arc block 37 rotates to the notch 10, the connecting frame 13 can connect the arc block 37 through the connecting hole 41. Then, the baffle 36 is moved to the inside of the galvanizing channel 14 through the moving table 11 and the connecting frame 13. When the zinc liquid level in the galvanizing channel 14 is too high, the zinc liquid can flow out through the overflow port 40.

[0037] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 3 Instruction manual attached Figure 5 Included with instruction manual Figure 6 The connecting frame 13 includes a fixing block 42 installed on one side of the lower surface of the moving platform 11. A spring telescopic rod 43 is installed on one side of the fixing block 42. A universal ball bearing 44 is installed at the lower end of the telescopic end of the spring telescopic rod 43. A top rod 45 is installed at the upper end of the telescopic end of the spring telescopic rod 43. A plurality of L-shaped limiting rods 46 are installed on the other side of the lower surface of the moving platform 11. The connecting hole 41 is located on the arc-shaped block 37 on the side close to the L-shaped limiting rods 46.

[0038] The process of connecting the arc-shaped block 37 by the connecting frame 13 is as follows: Under normal conditions, the arc-shaped block 37 is located between the circular limiting plate 9 and the rotating cylinder 4. The baffle 36 is stuck on the front side of the rotating cylinder 4. The spring telescopic rod 43 pushes the universal ball 44 and the push rod 45 against the arc-shaped block 37, and the spring telescopic rod 43 is in a compressed state. The L-shaped limiting rod 46 is located outside the connecting hole 41, which facilitates the rotation of the arc-shaped block 37. When the L-shaped limiting rod 46 moves out of the connecting hole 41, the moving rack 35 then... It can mesh with the rotating gear 34. When the moving table 11 moves back and forth, it can drive the rotating cylinder 4 and the arc block 37 to rotate, which can facilitate the switching of the adjustment plate 7. After the switching is completed, the moving table 11 is moved away from the servo motor 23. At this time, the spring telescopic rod 43 slowly extends and still presses the arc block 37 against the rotating cylinder 4. As the moving table 11 moves, the L-shaped limit rod 46 can enter the connecting hole 41, which can facilitate the connection of the arc block 37.

[0039] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 2 Instruction manual attached Figure 3 Instruction manual attached Figure 5 Included with instruction manual Figure 6 The arc-shaped block 37 has an arc-shaped groove 47 on one side, and the universal ball bearing 44 can enter the arc-shaped groove 47. The universal ball bearing 44 and the arc-shaped groove 47 can facilitate the positioning of the arc-shaped block 37 and facilitate the L-shaped limit rod 46 to enter the connecting hole 41.

[0040] Refer to the instruction manual appendix Figure 1 Included with instruction manual Figure 2 A ratchet 48 is mounted on the upper end of the drive shaft 31, and a pawl 49 is connected to the upper end of the ratchet 48. The pawl 49 is mounted on the fixed post above. The connection between the ratchet 48 and the pawl 49 can prevent the drive shaft 31 from reversing.

[0041] Refer to the instruction manual appendix Figure 1 Included with instruction manual Figure 9 A feeding box 50 is installed on one side of the upper end of the galvanizing box 1. The feeding box 50 contains zinc blocks. A feeding port 51 is provided on one side of the feeding box 50 and is installed on the galvanizing box 1. A protective door 52 is installed at the feeding port 51. A square box 53 is installed at the lower end of the feeding port 51. The square box 53 has multiple liquid permeation holes 54. When galvanizing steel bars, the worker takes out the zinc blocks from the feeding box 50, then opens the protective door 52, puts the zinc blocks into the square box 53, and then closes the protective door 52. At this time, the lower end of the square box 53 is immersed in the zinc liquid. The zinc liquid can enter the square box 53 through the liquid permeation holes 54. The zinc liquid can slowly melt the zinc blocks, and thus replenish the consumed zinc liquid, making it more convenient to use.

[0042] Although the present invention 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; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A galvanizing apparatus with adjustable zinc layer thickness, comprising a galvanizing box (1), wherein a heater (2) is installed at the lower end of the galvanizing box (1), and inlets and outlets (3) are opened on both sides of the galvanizing box (1), through which steel bars to be galvanized can enter and exit, characterized in that, A switching mechanism is provided on one side of the galvanizing box (1), and an adjusting galvanizing mechanism is provided inside the galvanizing box (1); The switching mechanism includes a rotating cylinder (4) located on one side inside the galvanizing box (1). A first rolling bearing (5) is installed on the rotating cylinder (4). The first rolling bearing (5) is installed inside the galvanizing box (1) by multiple support rods (6). Multiple adjusting plates (7) are provided on one side of the rotating cylinder (4). Circular through holes (8) are opened on the adjusting plates (7). The circular through holes (8) on the multiple adjusting plates (7) are of different sizes. Steel wire rods can pass through the circular through holes (8). A circular limiting plate (9) is provided on the front side of the rotating cylinder (4). A notch (10) is opened at the lower end of the circular limiting plate (9). The adjusting plate (7) is located between the circular limiting plate (9) and the rotating cylinder (4). The galvanizing adjustment mechanism includes a movable platform (11) located inside the galvanizing box (1). A drive frame (12) is installed on the galvanizing box (1). The drive frame (12) can drive the movable platform (11) to move back and forth. A connecting frame (13) is installed at the lower end of the movable platform (11). The connecting frame (13) can grab the adjusting plate (7) at the notch (10). A galvanizing channel (14) is provided at the lower end of the galvanizing box (1). The lower end of the galvanizing channel (14) is installed inside the galvanizing box (1) by multiple fixing rods (15). A fixing plate (16) is installed on the side of the galvanizing channel (14) away from the rotating cylinder (4). A round opening is opened on the fixing plate (16). 17), the steel wire rod can pass through the round opening (17), the adjusting plate (7) can move in the galvanizing channel (14) through the moving platform (11) and the connecting frame (13), the moving platform (11) can drive the rotating cylinder (4) to rotate in one direction through the transmission frame (18) when it moves back and forth, the galvanizing box (1) is equipped with a circulating pump (19), the inlet end of the circulating pump (19) is equipped with a liquid inlet pipe (20), the inlet end of the liquid inlet pipe (20) extends to the lower end of the galvanizing box (1), the outlet end of the circulating pump (19) is equipped with a liquid outlet pipe (21), the outlet end of the liquid outlet pipe (21) extends to the side of the upper end of the galvanizing channel (14) near the fixed plate (16); The adjusting plate (7) includes a baffle (36) located on one side of the rotating cylinder (4). An arc-shaped block (37) is installed on the side of the baffle (36) near the rotating cylinder (4). Multiple arc-shaped blocks (37) are distributed in a circle on the inner side of the rotating cylinder (4) without gaps between them. A guide groove (38) is opened on the arc-shaped block (37). An L-shaped guide block (39) is provided in the guide groove (38). One end of the L-shaped guide block (39) is installed on the inner surface of the rotating cylinder (4). A circular through hole (8) is located on the baffle (36). An overflow port (40) is opened on the baffle (36) on the side of the circular through hole (8) near the rotating cylinder (4). Multiple connecting holes (41) are opened on one side of the upper end of the arc-shaped block (37). The connecting frame (13) includes a fixed block (42) installed on one side of the lower surface of the moving platform (11). A spring telescopic rod (43) is installed on one side of the fixed block (42). A universal ball bearing (44) is installed at the lower end of the telescopic end of the spring telescopic rod (43). A top rod (45) is installed at the upper end of the telescopic end of the spring telescopic rod (43). Multiple L-shaped limit rods (46) are installed on the other side of the lower surface of the moving platform (11). The connecting hole (41) is located on the side of the arc block (37) near the L-shaped limit rod (46).

2. The zinc plating apparatus with adjustable zinc layer thickness according to claim 1, characterized in that, The drive frame (12) includes a support plate (22) installed on the outside of the galvanized box (1). A servo motor (23) is installed on the upper end of the support plate (22). The rotating end of the servo motor (23) is connected to a rotating screw (24) through a coupling. Second rolling bearings (25) are installed at both ends of the rotating screw (24). The second rolling bearings (25) are installed inside the galvanized box (1). One end of the rotating screw (24) extends into the inside of the galvanized box (1). A threaded through hole (26) is opened on the moving table (11). The rotating screw (24) and the threaded through hole (26) are connected by threads. A guide hole (27) is opened at the lower end of the moving table (11). A guide rod (28) is provided in the guide hole (27). Both ends of the guide rod (28) are connected to the inner surface of the galvanized box (1).

3. The zinc plating apparatus with adjustable zinc layer thickness according to claim 1, characterized in that, The transmission frame (18) includes a first bevel gear (29) installed on the outside of the rotating cylinder (4), the first bevel gear (29) meshing with a second bevel gear (30), a transmission shaft (31) installed on the second bevel gear (30), a third rolling bearing (32) installed at both ends of the transmission shaft (31), the third rolling bearing (32) being installed inside the galvanized box (1) via a fixed column, a one-way bearing (33) installed at the lower end of the transmission shaft (31), a rotating gear (34) installed on the outside of the one-way bearing (33), the rotating gear (34) meshing with a moving rack (35), and the moving rack (35) installed on one side surface of the moving table (11).

4. The zinc plating apparatus with adjustable zinc layer thickness according to claim 1, characterized in that, The arc-shaped block (37) has an arc-shaped groove (47) on one side, and the universal ball bearing (44) can enter the arc-shaped groove (47).

5. A zinc plating apparatus with adjustable zinc layer thickness according to claim 3, characterized in that, A ratchet (48) is installed on the upper end of the drive shaft (31), and a pawl (49) is connected to the upper end of the ratchet (48). The pawl (49) is installed on the fixed column above.

6. A galvanizing apparatus with adjustable zinc layer thickness according to claim 1, characterized in that, A feeding box (50) is installed on one side of the upper end of the galvanizing box (1). Zinc blocks are placed inside the feeding box (50). A feeding port (51) is provided on one side of the feeding box (50) on the galvanizing box (1). A protective gate (52) is installed at the feeding port (51). A square box (53) is installed at the lower end of the feeding port (51). Multiple liquid permeation holes (54) are opened on the square box (53).

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