Device for adjusting thickness of zinc layer on surface of hot-dip galvanized steel pipe

Abstract

The utility model discloses a device for adjusting the thickness of a zinc layer on the surface of a hot-dip galvanized steel pipe, which comprises a hot-dip galvanizing pool, the top of the hot-dip galvanizing pool is connected with a top plate through a lifting mechanism, the bottom of the top plate is provided with a clamping mechanism, one side of the clamping mechanism is provided with a driving mechanism, and one side of a support frame is connected with a fixed seat through a moving mechanism. According to the steel pipe hot-dip galvanizing device, a steel pipe can be conveniently clamped and fixed through the arranged clamping mechanism, hot-dip galvanizing operation of the steel pipe can be conveniently conducted through the arranged lifting mechanism, the distance between the scraper and the steel pipe can be adjusted through the arranged adjusting mechanism, and through the arranged driving mechanism, the steel pipe can be conveniently fixed through the scraper. According to the steel pipe hot galvanizing device, the steel pipe can be driven to rotate, so that a scraper can scrape off a redundant zinc layer on the surface of the steel pipe conveniently, the scraper can be driven to comprehensively scrape off the redundant zinc layer on the surface of the steel pipe through the arranged moving mechanism, then through arrangement, control over the thickness of the steel pipe hot galvanizing zinc layer is facilitated, and the flexibility of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot dip galvanizing, in particular to an adjusting device for the thickness of the zinc layer on the surface of hot dip galvanized steel pipes. Background Technique

[0002] Galvanizing refers to a surface treatment technology in which a layer of zinc is plated on the surface of metals, alloys or other materials for purposes such as aesthetics and rust prevention. The main method used is hot dip galvanizing. The production process of hot dip galvanized sheets mainly includes: original plate preparation → pre-plating treatment → hot dip galvanizing → post-plating treatment → finished product inspection, etc.

[0003] Currently, steel pipes need to be galvanized for anti-corrosion treatment after production. However, the thickness of the zinc layer of the existing steel pipe hot dip galvanizing cannot be effectively controlled. During the galvanizing process, it is difficult to achieve uniform galvanizing thickness, and it is impossible to adjust the galvanizing thickness in a timely manner according to needs, resulting in relatively large limitations of the production equipment.

[0004] Therefore, an adjusting device for the thickness of the zinc layer on the surface of hot dip galvanized steel pipes is needed to solve the problems raised in the above background technique. Content of the Utility Model

[0005] In view of the above problems, the utility model provides an adjusting device for the thickness of the zinc layer on the surface of hot dip galvanized steel pipes.

[0006] The utility model provides the following technical solution: An adjusting device for the thickness of the zinc layer on the surface of hot dip galvanized steel pipes, including a hot dip galvanizing bath. A top plate is provided above the hot dip galvanizing bath. Lifting mechanisms for facilitating the height adjustment of the top plate are installed on both sides of the hot dip galvanizing bath. A clamping mechanism for facilitating the fixation of the steel pipe is provided at the bottom of the top plate. A driving mechanism for facilitating the rotation of the steel pipe is installed on one side of the clamping mechanism. A support frame is installed on one side of the hot dip galvanizing bath. A fixed seat is provided on one side of the support frame. A moving mechanism for facilitating the horizontal movement of the fixed seat is provided inside the support frame. One end of the fixed seat is connected to a scraper through an adjusting mechanism for facilitating telescopic adjustment.

[0007] The adjusting mechanism includes a third motor installed on one side of the fixed seat. A chute is opened inside the fixed seat. An adjusting screw rod is rotatably connected inside the chute. A turbine is sleeved on the outer ring of the adjusting screw rod. A worm gear meshing with the turbine is rotatably connected above the turbine. One end of the worm gear is connected to the output end of the third motor. An adjusting plate threadedly connected to the adjusting screw rod is slidably connected inside the chute. The scraper is installed at one end of the adjusting plate.

[0008] In a further technical solution, the moving mechanism includes a second motor. Two sets of sliding rods are provided inside the support frame. A second rack plate is provided on one side of the two sets of sliding rods. A support seat slidably connected to the two sets of sliding rods is sleeved outside the second rack plate. A driving gear meshing with the second rack plate is rotatably connected inside the support seat. One end of the driving gear is connected to the output end of the second motor installed on the top of the support seat. The fixed seat is installed on one side of the support seat.

[0009] In a further technical solution, the lifting mechanism includes a bidirectional motor. Vertical plates are installed on both sides of the hot-dip galvanizing tank. Lifting grooves are opened at the tops of the two sets of vertical plates. Transmission grooves are opened at positions near the bottoms of the two sets of vertical plates. Screws are rotatably connected inside the two sets of lifting grooves. One ends of the two sets of screws respectively extend into the two sets of transmission grooves and are connected with first bevel gears. A cavity is opened at the bottom of the hot-dip galvanizing tank. The bidirectional motor is installed inside the cavity. Two output ends of the bidirectional motor are both connected with transmission shafts. The other ends of the two sets of transmission shafts respectively extend into the two sets of transmission grooves and are sleeved with second bevel gears meshing with the first bevel gears. Lifting plates threadedly connected with the screws are slidably connected inside the two sets of lifting grooves. One ends of the two sets of lifting plates are respectively connected with two ends of the top plate.

[0010] In a further technical solution, the clamping mechanism includes an electric telescopic rod installed on the top of the top plate. A groove is opened at the bottom of the top plate. Two sets of support rods are provided inside the groove. Two moving seats both slidably connected with the two sets of support rods penetrate through the inside of the groove. First rack plates are correspondingly provided on one side of the two sets of moving seats. The two sets of first rack plates are both meshed with a circular gear rotatably connected inside the groove. An activity groove is opened at the top of the top plate. A connecting seat connected with the top of one of the moving seats penetrates through the inside of the activity groove. One side of the connecting seat is connected with one end of the electric telescopic rod. Clamping plates are provided at the bottoms of the two sets of moving seats. Rotating plates are rotatably connected at positions near the bottoms of one sides of the two sets of clamping plates.

[0011] In a further technical solution, through grooves facilitating the movement of the first rack plates are opened on one side of the two sets of moving seats.

[0012] In a further technical solution, a transmission chamber is opened at the top of one of the clamping plates. Two turntables penetrate through the inside of the transmission chamber. The two turntables are connected by a conveyor belt. Connecting shafts rotatably connected with the transmission chamber penetrate through the inside of the two turntables. One end of one of the connecting shafts extends outside the clamping plate and is connected with the output end of a first motor installed outside the clamping plate. One end of the other connecting shaft is connected with one end of the rotating plate.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. By starting the third motor, the third motor can drive the worm to rotate. Under the meshing action with the turbine, the worm can drive the turbine to rotate. The turbine can drive the adjusting screw rod to rotate. Under the threaded connection action with the adjusting plate, the adjusting screw rod can drive the adjusting plate to slide along the chute. Thus, the adjusting plate can drive the scraper to move in position, so as to adjust the distance between the scraper and the steel pipe. Through the provided driving mechanism, the clamped steel pipe can be driven to rotate, so that the scraper can scrape off the redundant zinc layer on the surface of the steel pipe. Through the provided moving mechanism, the scraper can be driven to move horizontally along the surface of the steel pipe, so that the redundant zinc layer on the surface of the steel pipe can be scraped off comprehensively. Furthermore, through the setting, it is convenient to control the thickness of the zinc layer in hot-dip galvanizing of steel pipes, greatly improving the flexibility of the equipment.

[0015] 2. By starting the electric telescopic rod, the electric telescopic rod can drive the connecting seat to move to one side. The connecting seat can drive a set of moving seats and a set of first rack plates to slide along the two sets of support rods to one side. Under the meshing action of a set of first rack plates with the circular gear, the circular gear can be driven to rotate. Under the meshing action of the circular gear with the other set of first rack plates, the other set of first rack plates and the other set of moving seats can be driven to move in the opposite direction, so that the two sets of clamping plates and the rotating plate can be driven to move in the opposite direction. Thus, through the action of the two sets of rotating plates, it is convenient to clamp, fix and disassemble the steel pipe. Furthermore, through the setting, the convenience of installation and disassembly of the steel pipe is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a side top view of the present utility model;

[0018] Figure 3 is a side sectional view of the present utility model Figure 1 ;

[0019] Figure 4 is a side sectional view of the present utility model Figure 2 ;

[0020] Figure 5 is Figure 3 the enlarged view of part A in

[0021] Figure 6 is Figure 3 the enlarged view of part B in

[0022] Figure 7 is Figure 4 the enlarged view of part C in

[0023] Figure 8 For Figure 4 the enlarged view of part D in

[0024] In the figure: 1, hot-dip galvanizing bath; 2, vertical plate; 3, lifting groove; 4, transmission groove; 5, screw rod; 6, first bevel gear; 7, cavity; 8, bidirectional motor; 9, transmission shaft; 10, second bevel gear; 11, lifting plate; 12, top plate; 13, groove; 14, support rod; 15, moving seat; 16, first rack plate; 17, spur gear; 18, movable groove; 19, connecting seat; 20, electric telescopic rod; 21, through groove; 22, clamping plate; 23, rotating plate; 24, transmission bin; 25, turntable; 26, conveyor belt; 27, connecting shaft; 28, first motor; 29, support frame; 30, sliding rod; 31, second rack plate; 32, support seat; 33, driving gear; 34, second motor; 35, fixed seat; 36, chute; 37, adjusting lead screw; 38, turbine; 39, worm; 40, third motor; 41, adjusting plate; 42, scraper blade. Specific embodiments

[0025] The following further describes the embodiments of the present utility model with reference to the accompanying drawings.

[0026] Embodiment:

[0027] Referring to Figures 1 - 8 , an adjusting device for the zinc layer thickness on the surface of hot-dip galvanized steel pipes, comprising a hot-dip galvanizing bath 1, a top plate 12 is arranged above the hot-dip galvanizing bath 1, a lifting mechanism for conveniently adjusting the height of the top plate 12 is installed on both sides of the hot-dip galvanizing bath 1, a clamping mechanism for conveniently fixing the steel pipe is arranged at the bottom of the top plate 12, a driving mechanism for conveniently driving the steel pipe to rotate is installed on one side of the clamping mechanism, a support frame 29 is installed on one side of the hot-dip galvanizing bath 1, a fixed seat 35 is arranged on one side of the support frame 29, a moving mechanism for conveniently horizontally moving the fixed seat 35 is arranged inside the support frame 29, and a scraper blade 42 is connected to one end of the fixed seat 35 through an adjusting mechanism for conveniently telescopic adjustment;

[0028] The adjusting mechanism includes a third motor 40 installed on one side of the fixed seat 35, a chute 36 is opened inside the fixed seat 35, an adjusting lead screw 37 is rotatably connected inside the chute 36, a turbine 38 is sleeved on the outer circle of the adjusting lead screw 37, a worm 39 meshing with the turbine 38 is rotatably connected above the turbine 38, one end of the worm 39 is connected to the output end of the third motor 40, an adjusting plate 41 threadedly connected to the adjusting lead screw 37 is slidably connected inside the chute 36, and the scraper blade 42 is installed at one end of the adjusting plate 41.

[0029] Specifically, the provided hot-dip galvanizing bath 1 can offer a stable working platform for the hot-dip galvanizing operation of steel pipes. The provided clamping mechanism can facilitate the clamping and fixing of steel pipes. The provided lifting mechanism can drive the clamped and fixed steel pipes to immerse into the interior of the hot-dip galvanizing bath 1, thereby completing the hot-dip galvanizing operation of steel pipes. When the steel pipes finish the galvanizing work and are removed from the hot-dip galvanizing bath 1, by starting the third motor 40, the third motor 40 can drive the worm 39 to rotate. Under the meshing action of the worm 39 and the turbine 38, the turbine 38 can be driven to rotate. The turbine 38 can drive the adjusting screw rod 37 to rotate. Through the threaded connection between the adjusting screw rod 37 and the adjusting plate 41, the adjusting plate 41 can be driven to slide along the chute 36. Thus, the adjusting plate 41 can drive the scraper 42 to move in position, so as to adjust the distance between the scraper 42 and the steel pipe. The provided driving mechanism can drive the clamped steel pipes to rotate, so that the scraper 42 can scrape off the excess zinc layer on the surface of the steel pipe. The provided moving mechanism can drive the scraper 42 to move horizontally along the surface of the steel pipe, so as to comprehensively scrape off the excess zinc layer on the surface of the steel pipe. Furthermore, through the above structure, it is convenient to control the thickness of the zinc layer in the hot-dip galvanizing of steel pipes, greatly improving the flexibility of the equipment.

[0030] Among them, the moving mechanism includes a second motor 34. There are two groups of slide rods 30 arranged inside the support frame 29. A second rack plate 31 is arranged on one side of the two groups of slide rods 30. A support seat 32 slidably connected to the two groups of slide rods 30 is sleeved outside the second rack plate 31. A driving gear 33 meshing with the second rack plate 31 is rotatably connected inside the support seat 32. One end of the driving gear 33 is connected to the output end of the second motor 34 installed on the top of the support seat 32. A fixed seat 35 is installed on one side of the support seat 32. By starting the second motor 34, the second motor 34 can drive the driving gear 33 to rotate. Under the meshing action of the driving gear 33 and the second rack plate 31, and with the combined action of the two groups of slide rods 30 and the second rack plate 31 provided, the support seat 32 can be driven to slide along the two groups of slide rods 30. The support seat 32 can drive the fixed seat 35 to move horizontally, so as to drive the scraper 42 installed at one end of the fixed seat 35 to move horizontally, facilitating the scraping operation of the excess zinc layer.

[0031] Among them, the lifting mechanism includes a bidirectional motor 8. Vertical plates 2 are installed on both sides of the hot-dip galvanizing bath 1. Lifting grooves 3 are opened at the tops of the two groups of vertical plates 2. Transmission grooves 4 are opened at positions near the bottoms of the two groups of vertical plates 2. One ends of two groups of screws 5 are rotatably connected to the inner sides of the two groups of lifting grooves 3 respectively, and the other ends of the two groups of screws 5 extend into the inner sides of the two groups of transmission grooves 4 respectively and are connected with first bevel gears 6. A cavity 7 is opened at the bottom of the hot-dip galvanizing bath 1, and a bidirectional motor 8 is installed inside the cavity 7. Two output ends of the bidirectional motor 8 are both connected with transmission shafts 9. The other ends of the two groups of transmission shafts 9 extend into the inner sides of the two groups of transmission grooves 4 respectively and are sleeved with second bevel gears 10 meshing with the first bevel gears 6. Two groups of lifting plates 11 threadedly connected with the screws 5 are slidably connected to the inner sides of the two groups of lifting grooves 3. One ends of the two groups of lifting plates 11 are respectively connected with both ends of the top plate 12. By starting the bidirectional motor 8, the bidirectional motor 8 can drive the two groups of transmission shafts 9 to rotate. The two groups of transmission shafts 9 can drive the two groups of second bevel gears 10 to rotate. Under the meshing action of the two groups of second bevel gears 10 and the two groups of first bevel gears 6, the two groups of first bevel gears 6 can be driven to rotate. The two groups of first bevel gears 6 can drive the two groups of screws 5 to rotate. Under the threaded connection action of the two groups of screws 5 and the two groups of lifting plates 11, the two groups of lifting plates 11 can be driven to slide up and down along the two groups of lifting grooves 3. The two groups of lifting plates 11 can drive the top plate 12 connected to the top to move up and down. The top plate 12 can drive the steel pipes clamped and fixed at the bottom in and out of the hot-dip galvanizing bath 1, so that the hot-dip galvanizing operation of the steel pipes can be facilitated.

[0032] Among them, the clamping mechanism includes an electric telescopic rod 20 installed on the top of the top plate 12. A groove 13 is opened at the bottom of the top plate 12. Two groups of support rods 14 are arranged inside the groove 13. Two groups of moving seats 15 that are both slidably connected to the two groups of support rods 14 penetrate through the inside of the groove 13. One side of each of the two groups of moving seats 15 is correspondingly provided with a first rack plate 16. Both of the two groups of first rack plates 16 are engaged with a circular gear 17 rotatably connected inside the groove 13. An activity groove 18 is opened at the top of the top plate 12. A connecting seat 19 connected to the top of one of the moving seats 15 penetrates through the inside of the activity groove 18. One side of the connecting seat 19 is connected to one end of the electric telescopic rod 20. Clamping plates 22 are arranged at the bottoms of the two groups of moving seats 15. Rotating plates 23 are rotatably connected to the positions near the bottoms of one sides of the two groups of clamping plates 22. Through grooves 21 for facilitating the movement of the first rack plates 16 are opened on one sides of the two groups of moving seats 15. By starting the electric telescopic rod 20, the electric telescopic rod 20 can drive the connecting seat 19 to move to one side. The connecting seat 19 can drive one of the moving seats 15 and one of the first rack plates 16 to slide along the two groups of support rods 14 to one side. One of the first rack plates 16 can drive the circular gear 17 to rotate under the meshing action with the circular gear 17. The circular gear 17 can drive the other first rack plate 16 and the other moving seat 15 to move in the reverse direction under the meshing action with the other first rack plate 16, so as to drive the two groups of clamping plates 22 and the rotating plates 23 to move in the reverse direction. Thus, under the action of the two groups of rotating plates 23, it is convenient to clamp, fix and disassemble the steel pipe. Furthermore, through the setting, the convenience of installation and disassembly of the steel pipe is effectively improved.

[0033] Among them, a transmission bin 24 is opened at the top of one of the clamping plates 22. Two groups of turntables 25 penetrate through the inside of the transmission bin 24. The two groups of turntables 25 are connected by a conveyor belt 26. Connecting shafts 27 that are rotatably connected to the transmission bin 24 penetrate through the inside of each of the two groups of turntables 25. One end of one of the connecting shafts 27 extends to the outside of the clamping plate 22 and is connected to the output end of a first motor 28 installed outside the clamping plate 22. One end of the other connecting shaft 27 is connected to one end of the rotating plate 23. By starting the first motor 28, the first motor 28 can drive one of the connecting shafts 27 to rotate. One of the connecting shafts 27 can drive one of the turntables 25 to rotate. One of the turntables 25 can drive the other turntable 25 to rotate under the action of the conveyor belt 26. The other turntable 25 can drive the other connecting shaft 27 to rotate, so as to drive one of the rotating plates 23 to rotate. Furthermore, through the setting, the clamped steel pipe can be driven to rotate to facilitate the scraping operation of the excess zinc layer on the steel pipe.

[0034] Working principle: First, by starting the electric telescopic rod 20, the electric telescopic rod 20 can drive the connecting seat 19 to move to one side. The connecting seat 19 can drive a set of moving seats 15 and a set of first rack plates 16 to slide along two sets of support rods 14 to one side. A set of first rack plates 16 can drive the circular gear 17 to rotate. The circular gear 17 can drive another set of first rack plates 16 and another set of moving seats 15 to move in the opposite direction, so as to drive two sets of clamping plates 22 to move in the opposite direction and clamp and fix the steel pipe. Then, by starting the bidirectional motor 8, the bidirectional motor 8 can drive two sets of transmission shafts 9 to rotate. Two sets of transmission shafts 9 can drive two sets of second bevel gears 10 to rotate. Two sets of second bevel gears 10 can drive two sets of first bevel gears 6 to rotate. Two sets of first bevel gears 6 can drive two sets of screw rods 5 to rotate. Two sets of screw rods 5 can drive two sets of lifting plates 11 to slide up and down. Two sets of lifting plates 11 can drive the top-connected top plate 12 and the clamped and fixed steel pipe to enter and exit the hot-dip galvanizing bath 1, so as to facilitate the hot-dip galvanizing operation of the steel pipe. When the steel pipe completes the galvanizing work and is removed from the hot-dip galvanizing bath 1, by starting the third motor 40, the third motor 40 can drive the worm 39 to rotate. The worm 39 can drive the turbine 38 to rotate. The turbine 38 can drive the adjusting screw rod 37 to rotate. The adjusting screw rod 37 can drive the adjusting plate 41 to slide along the chute 36. Thus, the adjusting plate 41 can drive the scraper 42 to move in position, so as to adjust the distance between the scraper 42 and the steel pipe. Then, by starting the first motor 28, the first motor 28 can drive a set of connecting shafts 27 to rotate. A set of connecting shafts 27 can drive a set of turntables 25 to rotate. A set of turntables 25 can drive another set of turntables 25 to rotate. Another set of turntables 25 can drive another set of connecting shafts 27 to rotate, so as to drive the rotating plate 23 and the clamped steel pipe to rotate. Finally, by starting the second motor 34, the second motor 34 can drive the driving gear 33 to rotate. The driving gear 33 can drive the support seat 32 to slide along two sets of sliding rods 30. The support seat 32 can drive the fixed seat 35 to move horizontally, so as to drive the scraper 42 installed at one end of the fixed seat 35 to move horizontally, so as to facilitate the scraping operation of the excess zinc layer, and then complete the entire operation process.

[0035] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A device for adjusting the thickness of zinc layer on the surface of a hot-dip galvanized steel pipe, comprising a hot-dip galvanizing pool, characterized in that: A top plate is provided above the hot-dip galvanizing pool, and lifting mechanisms are installed on both sides of the hot-dip galvanizing pool to facilitate height adjustment of the top plate. A clamping mechanism is provided at the bottom of the top plate to facilitate fixing of the steel pipe, and a driving mechanism is installed on one side of the clamping mechanism to facilitate driving the steel pipe to rotate. A support frame is installed on one side of the hot-dip galvanizing pool, and a fixed seat is provided on one side of the support frame. A moving mechanism is provided on the inner side of the support frame to facilitate horizontal movement of the fixed seat, and a scraper is connected to one end of the fixed seat through an adjustment mechanism that facilitates telescopic adjustment; The adjusting mechanism comprises a third motor mounted on one side of the fixing seat, a slide groove is provided on the inner side of the fixing seat, an adjusting screw is rotatably connected to the inner side of the slide groove, a turbine is sleeved on the outer ring of the adjusting screw, a vortex rod meshing with the turbine is rotatably connected to the upper side of the turbine, one end of the vortex rod is connected to the output end of the third motor, an adjusting plate threadedly connected to the adjusting screw is slidably connected to the inner side of the slide groove, and the scraper is mounted on one end of the adjusting plate.

2. The device for adjusting the zinc layer thickness on the surface of a hot-dip galvanized steel pipe according to claim 1, characterized in that: The moving mechanism includes a second motor, two groups of sliding rods are provided on the inner side of the support frame, a second rack plate is provided on one side of the two groups of sliding rods, a support seat slidably connected to the two groups of sliding rods is sleeved on the outer side of the second rack plate, a driving gear meshing with the second rack plate is rotatably connected to the inner side of the support seat, one end of the driving gear is connected to the output end of the second motor installed on the top of the support seat, and the fixed seat is installed on one side of the support seat.

3. The device for adjusting the zinc layer thickness on the surface of a hot-dip galvanized steel pipe according to claim 1, characterized in that: The lifting mechanism includes a bidirectional motor, vertical plates are installed on both sides of the hot-dip galvanizing pool, lifting grooves are opened on the tops of the two groups of vertical plates, transmission grooves are opened near the bottom of the two groups of vertical plates, the inner sides of the two groups of lifting grooves are rotatably connected with screws, one end of the two groups of screws respectively extends to the inner sides of the two groups of transmission grooves and is connected with a first bevel gear, a cavity is opened at the bottom of the hot-dip galvanizing pool, the inner side of the bidirectional motor is installed, the two groups of output ends of the bidirectional motor are connected with transmission shafts, the other ends of the two groups of transmission shafts respectively extend to the inner sides of the two groups of transmission grooves and are sleeved with second bevel gears meshing with the first bevel gear, the inner sides of the two groups of lifting grooves are slidably connected with lifting plates threadedly connected to the screws, and one end of the two groups of lifting plates is respectively connected to the two ends of the top plate.

4. The device for adjusting the zinc layer thickness on the surface of a hot-dip galvanized steel pipe according to claim 3, characterized in that: The clamping mechanism includes an electric telescopic rod installed on the top of the top plate, the bottom of the top plate is provided with a groove, the inner side of the groove is provided with two groups of support rods, the inner side of the groove is penetrated by two groups of moving seats that are slidably connected to the two groups of support rods, one side of the two groups of moving seats is correspondingly provided with a first rack plate, the two groups of first rack plates are meshed with circular gears rotatably connected to the inner side of the groove, the top of the top plate is provided with a movable groove, the inner side of the movable groove is penetrated by a connecting seat connected to the top of one group of moving seats, one side of the connecting seat is connected to one end of the electric telescopic rod, the bottom of the two groups of moving seats are provided with a splint, and one side of the two groups of splints near the bottom is rotatably connected with a rotating plate.

5. The device for adjusting the zinc layer thickness on the surface of a hot-dip galvanized steel pipe according to claim 4, characterized in that: One side of the two groups of movable seats is provided with a through slot for facilitating the movement of the first rack plate.

6. The device for adjusting the zinc layer thickness on the surface of a hot-dip galvanized steel pipe according to claim 4, characterized in that: A transmission bin is provided on the top of one group of the splints, and two groups of turntables are passed through the inner side of the transmission bin. The two groups of turntables are connected by a conveyor belt, and a connecting shaft rotatably connected to the transmission bin is passed through the inside of the two groups of turntables. One end of one group of the connecting shafts extends to the outside of the splint and is connected to the output end of the first motor installed on the outer side of the splint, and one end of the other group of the connecting shafts is connected to one end of the rotating plate.

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