Galvanizing device for hot-dip galvanized pipe production and use method thereof

Abstract

The present invention belongs to the technical field of plating of metal materials, and specifically is a galvanizing device for hot-dip galvanized pipe production and a method of using the same. The galvanizing device for hot-dip galvanized pipe production comprises a galvanizing pool and a gantry, wherein a rotating shaft is connected in a transversely rotatable manner in the gantry, and an outer wall fixed sleeve of the rotating shaft is provided with two fixed disks, and a plurality of connecting arms are fixed to the outer walls of the two fixed disks, and the plurality of connecting arms located on the two fixed disks correspond to each other. In the present invention, the connecting arms and the fixed disks are driven to rotate by the rotating shaft, so that uniform galvanizing, drying, zinc slag removal, unloading and loading operations of the pipe fittings can be completed in sequence without manual operation, which not only reduces the labor intensity of the staff but also ensures the health of the staff.

Description

Technical Field

[0001] The invention relates to the technical field of plating metal materials, in particular to a galvanizing device for producing hot-dip galvanized pipes and a use method thereof. Background Art

[0002] Galvanizing refers to a surface treatment technology that coats a layer of zinc on the surface of metal, alloy or other materials for aesthetics and rust prevention. Zinc plating is mainly used to prevent corrosion of steel, and its protective performance is closely related to the thickness of the coating. The zinc coating can significantly improve its protective and decorative properties after passivation, dyeing or coating with a light protectant.

[0003] For example, the utility model of a galvanizing device with announcement number CN212610855U and the utility model of a hot-dip galvanizing pipe production galvanizing device with announcement number CN220887642U.

[0004] The above technical solution still has some shortcomings during galvanizing:

[0005] 1. During galvanizing, manual operation is required to load and unload the galvanized pipes, which not only increases the workload of the workers, but also may produce toxic gases, such as zinc vapor, during the galvanizing process. Long-term inhalation or exposure of workers to these gases may cause harm to their health;

[0006] 2. When drying the galvanized pipe after galvanizing, the galvanized layer on the outer wall of the galvanized pipe cannot be dried evenly, resulting in uneven thickness of the galvanized layer in the later stage, affecting the use of the galvanized pipe;

[0007] 3. In addition, the zinc slag on the outer wall of the galvanized pipe cannot be removed after the galvanized pipe is dried, resulting in insufficient smoothness of the outer wall of the galvanized pipe.

[0008] In view of the above problems, the present invention provides a galvanizing device for hot-dip galvanized pipe production and a method of using the same. Summary of the invention

[0009] The purpose of the present invention is to solve the shortcomings of the existing need for manual loading and unloading, zinc vapor causing harm to the workers during manual operation, inability to evenly dry the zinc coating on the outer wall of the galvanized pipe, and inability to automatically remove zinc slag on the outer wall, and to propose a galvanizing device for hot-dip galvanized pipe production and a method of using the same.

[0010] In order to achieve the above object, the present invention adopts the following technical solutions:

[0011] A galvanizing device for hot-dip galvanized pipe production, comprising a galvanizing pool and a gantry, wherein a rotating shaft is connected in a transversely rotatable manner in the gantry, and an outer wall fixed sleeve of the rotating shaft is provided with two fixed disks, and a plurality of connecting arms are fixed to the outer walls of the two fixed disks, and the plurality of connecting arms located on the two fixed disks correspond to each other, and a rotating shaft is passed through the plurality of connecting arms, and the corresponding two rotating shafts are used to clamp the pipe fittings, and the rotating shaft is immersed below the galvanizing liquid level in the galvanizing pool, and arc-shaped racks are fixed to the inner walls of the galvanizing pool on both sides away from each other;

[0012] The arc plate is arranged above the rotating shaft, and a sanding belt is arranged at the bottom of the arc plate to remove zinc slag from the outer wall of the galvanized pipe;

[0013] It also includes a mounting plate fixed on one side of the galvanizing pool, a bracket is fixed on the top of the mounting plate, a loading horizontal plate is fixed on the top of the bracket, the loading horizontal plate is used to place the pipes to be galvanized, one side of the loading horizontal plate is rotatably connected to a yield plate for receiving the galvanized pipes, and a discharging inclined plate is provided above the loading horizontal plate for transporting the galvanized pipes to the outside;

[0014] The galvanizing structure is arranged on the rotating shaft and is used to uniformly galvanize the pipe fittings in the galvanizing pool;

[0015] A cleaning structure is arranged in the gantry and is used to automatically clean zinc slag from the outer wall of the galvanized pipe;

[0016] The unloading structure is arranged on one side of the gantry and is used to automatically unload the galvanized pipes so that the galvanized pipes are discharged along the unloading inclined plate;

[0017] The feeding structure is arranged inside the feeding horizontal plate and is used for automatically completing the feeding operation during the unloading process.

[0018] In a possible design, the galvanized structure includes a gear fixed to the inner wall of the rotating shaft near the gantry, the gear meshes with the arc-shaped rack, the connecting arm is rotatably connected to a synchronous wheel on the side near the gear, and the synchronous wheel is slidably sleeved on the outer wall of the rotating shaft through a slide groove and a slider, a first tension spring is fixed to the side where the synchronous wheel and the gear are close to each other, and the first tension spring is sleeved on the outer wall of the rotating shaft, the first tension spring drives the rotating shaft to be inserted into the pipe fitting through the gear, and is used to clamp the pipe fitting, the outer wall of the rotating shaft is fixedly sleeved with a retaining ring, and the retaining ring cooperates with the rotating shaft to clamp and fix one end of the pipe fitting, and a rubber column is fixed to the end of the rotating shaft away from the gear, which is used to fix the pipe fitting. The invention is used to increase the friction between the rubber column and the inner wall of the pipe; the two rotating shafts move toward the middle under the action of the two first tension springs, and the rotating shaft drives the rubber column to insert into the pipe, and the friction between the rubber column and the inner wall of the pipe can make the rotating shaft drive the pipe to rotate, and the rotating shaft drives the fixed plate and the connecting arm to rotate, and the connecting arm drives the pipe to rotate clockwise through the two rotating shafts until the pipe is immersed in the galvanizing liquid heated in the galvanizing pool. At this time, the gear and the arc-shaped rack are meshed to drive the rotating shaft to rotate, and the rotating shaft can drive the rotation of the remaining rotating shafts through the cooperation of the synchronous wheel and the synchronous belt. At this time, the rotating shaft drives the pipe to rotate in the galvanizing liquid, so that the pipe is evenly galvanized in the galvanizing liquid.

[0019] In a possible design, the cleaning structure includes a plurality of vertical rods sliding through the gantry, the bottom ends of the plurality of vertical rods are fixedly connected to the top of the arc-shaped plate, the outer wall of the vertical rod is provided with a second tension spring fixedly connected to the top of the gantry, the top of the second tension spring is fixed to the outer wall of the vertical rod, and a plurality of guide blocks are fixed on both sides of the arc-shaped plate for making way for the galvanized pipe to fit the bottom of the arc-shaped plate, the outer wall of the rotating shaft is provided with two mounting arms, the two mounting arms are located between the two fixed plates, and the bottom of the two mounting arms is fixed with the same receiving plate for receiving the galvanized pipe. Slag; when the rotating shaft drives the pipe to move upward, the guide block contacts the outer wall of the pipe and guides it, so that the outer wall of the pipe is close to the bottom of the arc plate. At this time, the sanding belt at the bottom of the arc plate contacts the pipe, and then with the rotation of the fixed plate and the connecting arm, the rotating shaft and the pipe can continue to be driven to rotate. The sanding belt fits tightly to the outer wall of the pipe under the tension of the second tension spring. With the rotation of the pipe, the zinc slag on its outer wall can be removed, and the removed zinc slag is collected by the receiving plate. Since the center of gravity of the receiving plate is below the rotating shaft, the receiving plate always remains in the lower position when the rotating shaft rotates, ensuring that the receiving plate continues to collect zinc slag.

[0020] In a possible design, the unloading structure includes two receiving plates fixed on one side of the gantry, and arc magnets are fixed on the sides of the two receiving plates that are close to each other. The gear is made of iron, and a magnetic attraction is generated between the gear and the arc magnet. The arc magnet is located above the unloading inclined plate, and multiple support arms are fixed on both sides of the loading cross plate, and the two sides of the unloading inclined plate are respectively fixedly connected to the corresponding support arms; when the rotating shaft drives the pipe fitting to move to the top of the unloading inclined plate, the arc magnet is just located on one side of the gear, and the gear is made of iron. The magnetic attraction between the arc magnet and the gear drives the rotating shaft and the rubber column to move outward, and the two rotating shafts release the clamping of the pipe fitting, and the pipe fitting falls on the unloading inclined plate, and then the pipe fitting rolls to one side along the unloading inclined plate to complete the unloading operation.

[0021] In one possible design, the feeding structure includes two special-shaped connecting blocks slidably arranged on both sides of the feeding cross plate, the bottom ends of the two special-shaped connecting blocks are fixed with the same lifting plate, and the lifting plate is located below the feeding cross plate, and a plurality of triangular plates are fixed on the top of the lifting plate, and the top of the triangular plate passes through the feeding cross plate, which is used to push the pipe to be galvanized to one side, and the ends of the two special-shaped connecting blocks close to each other are fixed with baffles located above the feeding cross plate, which are used to limit the adjacent pipes to be galvanized, and the distance between the baffles and the triangular plates corresponds to the diameter of the pipe to be galvanized, the top of the unloading inclined plate is rotatably connected to a rotating rod through a base plate, and a rotating plate is fixedly sleeved on the outer wall of the rotating rod. The galvanized pipe rolling along the unloading inclined plate can drive the rotating plate to rotate counterclockwise, and winding wheels are fixed at both ends of the rotating rod, and the two winding wheels The outer walls are fixed with pull ropes, and the bottom ends of the two pull ropes are respectively fixedly connected to the tops of the two special-shaped connecting blocks, and the rotating plate drives the lifting plate to move up through the winding wheel and the pull rope for automatic loading; when the pipe fittings roll along the unloading inclined plate, the inertia of the pipe fittings drives the rotating plate to rotate counterclockwise, and the rotating plate rotates through the rotating rod and the winding wheel, and the winding wheel drives the special-shaped connecting block and the lifting plate to move up through the winding pull rope, and the lifting plate drives the triangular plate to penetrate the feeding cross plate, and the baffle moves up to release the limit on the adjacent pipe fittings to be galvanized. As the lifting plate moves up, the triangular plate pushes the pipe fittings to be galvanized between the baffle and the triangular plate toward the direction of the yield plate, and the triangular plate blocks the pipe fittings to be galvanized on the corresponding side at the same time, and then the lifting plate and the rotating plate are reset, the baffle blocks the pipe fittings to be galvanized again, and the pipe fittings to be galvanized pushed by the triangular plate move to the yield plate and are limited by the limit strip.

[0022] In a possible design, a cross frame is fixed in the bracket, a plurality of fixed seats are fixed on one side of the cross frame, a sliding rod is slidably passed through the plurality of fixed seats, a base is fixed to the top of the plurality of sliding rods, and the base is slidably connected to one side of the cross frame, an outer wall of the sliding rod is provided with a spring fixedly connected to the top of the fixed seat, and the top of the spring is fixedly connected to the bottom of the base, a plurality of bases are rotatably connected with connecting rods, and the tops of the plurality of connecting rods are rotatably connected to the bottom of the give way plate, for The clearance plate is supported and maintained in a horizontal state; the connecting arm continues to drive the rotating shaft downward until the rotating shaft is inserted into the pipe to be galvanized, completing the cooperation between the rotating shaft and the pipe to be galvanized, and then the rotating shaft drives the pipe to be galvanized to rotate downward, and the pipe to be galvanized pushes the clearance plate to rotate counterclockwise until the pipe to be galvanized is detached from the clearance plate, and the clearance plate is reset under the elastic force of the spring, and the cooperation of the limit groove and the limit rod can limit the clearance plate, ensuring that the clearance plate and the feeding cross plate are in the same horizontal plane, ensuring that it can continue to bear the galvanized pipes in the later stage.

[0023] In a possible design, a plurality of limit grooves are provided on one side of the give way plate close to the loading cross plate, a plurality of limit rods are fixed on one side of the loading cross plate, and the limit rods cooperate with the limit grooves to limit the rotation of the give way plate, so that the give way plate and the loading cross plate are in the same horizontal plane, a limit strip is fixed on the top of the give way plate to limit the galvanized pipe fittings to be treated, and a loading inclined plate is fixed on the side of the loading cross plate away from the give way plate to make the galvanized pipe fittings to be treated automatically roll toward the direction of the give way plate; when the galvanized pipe fittings to be treated are detached from the give way plate, the give way plate is reset under the elastic force of the spring, and the cooperation of the limit grooves and the limit rods can limit the give way plate, ensuring that the give way plate and the loading cross plate are in the same horizontal plane, ensuring that the galvanized pipe fittings can continue to be treated in the later stage.

[0024] In a possible design, a notch is provided at the center position of the arc-shaped rack for temporarily releasing the meshing between the gear and the arc-shaped rack, and a plurality of synchronous wheels located on one side of the fixed disk are connected by a synchronous belt transmission; when the gear is located at the notch, the plurality of rotating shafts stop rotating, so that the rotating shaft above the loading cross plate can be inserted into the pipe fitting and clamped and fixed.

[0025] In a possible design, an L-shaped plate is fixed to the side of the galvanizing pool away from the mounting plate, the outer wall of the L-shaped plate is slidably sleeved with a U-shaped plate, the U-shaped plate cooperates with the rotating shaft, a support plate is fixed to the bottom of the U-shaped plate, a plurality of cross bars are slidably penetrated in the support plate, a same blast box is fixed at one end of the plurality of cross bars, and the blast box is slidably arranged at the bottom of the U-shaped plate, the outer wall of the cross bar is sleeved with a reset spring fixedly connected to the blast box, and the other end of the reset spring is fixedly connected to the support plate, The top inner wall and the bottom inner wall of the blast box are both fixed with a plurality of heating plates for heating the air. A plurality of air injection pipes are fixed on the side of the blast box close to the support plate, and one end of the air injection pipe passes through the support plate and is connected to an external blower for blowing hot air to the galvanized pipe. Baffle rods are slidably connected to both sides of the bottom of the U-shaped plate, and the baffle rods cooperate with the rotating shaft. The two baffle rods are fixedly connected to the blast box. The baffle rods are tightly attached to the rotating shaft under the action of a return spring, so that the hot air in the blast box dries the galvanized pipe. A guide rod is fixed at the bottom of the stopper rod for making way for the stopper rod, and limit plates are fixed on both sides of the L-shaped plate for limiting the position of the U-shaped plate. An inclined plate is fixed on one side of the L-shaped plate, and a return hole is provided on one side of the galvanizing pool for matching with the inclined plate. The inclined plate and the return hole are matched to return the galvanizing liquid dripping from the galvanized pipe to the galvanizing pool; the connecting arm drives the pipe fitting to separate from the galvanizing pool and start to move up until the two ends of the U-shaped plate are respectively placed on the two rotating shafts, and the guide rod makes way for the rotating shaft to make the stopper rod collide with the rotating shaft. The blower box and the baffle rod are tightly attached to the outer wall of the rotating shaft under the elastic force of the return spring, and the cross bar injects the hot air injected by the external blower into the blower box, and blows the air heated by the heating plate in the blower box to the pipe fittings on the outer wall of the rotating shaft, and the rotating shaft can drive the pipe fittings to rotate at this time, thereby evenly drying the outer wall of the pipe fittings. In addition, the upward movement of the rotating shaft in the water drives the U-shaped plate to move up, and the baffle rod and the blower box are always attached to the rotating shaft under the action of the return spring, so that the pipe fittings can be dried for a long time, ensuring that the pipe fittings are thoroughly dried.

[0026] In the present application, the method for using the galvanizing device for hot-dip galvanized pipe production comprises the following steps:

[0027] S1. The rotating shaft moves toward the middle under the action of the first tension spring, driving the rubber column to insert into the pipe fitting, and driving the pipe fitting to rotate through friction; the motor drives the rotating shaft, and then drives the connecting arm and the pipe fitting to rotate clockwise until the pipe fitting is immersed in the galvanizing liquid; the gear meshes with the arc-shaped rack, and through the cooperation of the synchronous wheel and the synchronous belt, drives all the rotating shafts to rotate, so that the pipe fitting is evenly galvanized in the galvanizing liquid;

[0028] S2, the connecting arm drives the pipe to separate from the galvanizing pool and start to move upward; the U-shaped plate is placed on the rotating shaft, and the blast box and the baffle stick to the outer wall of the rotating shaft under the action of the spring; the hot air in the blast box blows to the outer wall of the pipe, and the rotating shaft drives the pipe to rotate to achieve uniform drying;

[0029] S3, when the rotating shaft drives the pipe to move upward, the guide block contacts the pipe and guides it to stick to the bottom of the arc plate; the sanding belt sticks to the outer wall of the pipe under the tension of the second tension spring, removes the zinc slag as it rotates, and the zinc slag is collected by the receiving plate;

[0030] S4. When the rotating shaft drives the pipe to move above the unloading inclined plate, the arc-shaped magnet and the iron gear generate magnetic attraction, driving the rotating shaft and the rubber column to move outward, releasing the clamping of the pipe, and the pipe falls on the unloading inclined plate and the unloading is completed;

[0031] S5. When the pipe rolls along the unloading inclined plate, its inertia drives the rotating plate to rotate counterclockwise, and then drives the lifting plate to move up through the reeling wheel and the reeling rope; the lifting plate drives the triangular plate to push the galvanized pipe to move toward the making way plate and make way for the next pipe;

[0032] S6. When the rotating shaft moves to the top of the clearance plate, it contacts and clamps the pipe to be galvanized; the gear disengages from the arc magnet, and after losing the magnetic attraction, it moves to the middle under the tension of the first tension spring; the connecting arm continues to drive the rotating shaft downward until it is inserted into the pipe to be galvanized to complete the fit; the rotating shaft drives the pipe to be galvanized to rotate downward, pushing the clearance plate to rotate until it disengages, and the clearance plate is reset under the action of the spring and is ready to receive the pipe to be galvanized.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] In the present invention, a plurality of vertical rods are slidably penetrated in the gantry, the bottom ends of the plurality of vertical rods are fixedly connected to the top of the arc-shaped plate, the outer wall of the rotating shaft is rotatably sleeved with two mounting arms, and the bottom of the two mounting arms is fixed with the same receiving plate; when the rotating shaft drives the pipe fitting to move upward, the outer wall of the pipe fitting is made to stick to the sanding belt at the bottom of the arc-shaped plate, and the zinc slag on the outer wall of the pipe fitting can be removed as the pipe fitting rotates, and the removed zinc slag is collected by the receiving plate;

[0035] In the present invention, a gear is fixed on one side of the rotating shaft, the gear is meshed with the arc-shaped rack, a synchronous wheel is rotatably connected to one side of the connecting arm, and the synchronous wheel is slidably sleeved on the outer wall of the rotating shaft, a first tension spring is fixed on the side where the synchronous wheel and the gear are close to each other, and a plurality of the synchronous wheels are connected through a synchronous belt transmission; the two rotating shafts move toward the middle under the action of the two first tension springs, and the rotating shaft drives the rubber column to insert into the pipe fitting, which can not only clamp the pipe fitting but also drive the pipe fitting to rotate, the connecting arm drives the pipe fitting to rotate clockwise through the two rotating shafts, and the gear and the arc-shaped rack cooperate to drive the rotating shaft to rotate, so that the pipe fitting is evenly galvanized;

[0036] In the present invention, arc magnets are fixed on one side of the two receiving plates close to each other, and magnetic attraction is generated between the gear and the arc magnet, and the arc magnet is located above the unloading inclined plate; when the rotating shaft drives the pipe fitting to move above the unloading inclined plate, the arc magnet is just located on one side of the gear, and the gear is made of iron, and the magnetic attraction between the arc magnet and the gear drives the rotating shaft and the rubber column to move outward, and the two rotating shafts release the clamping of the pipe fitting, and the pipe fitting falls on the unloading inclined plate, and the unloading operation is automatically completed;

[0037] In the present invention, special-shaped connecting blocks are slidably provided on both sides of the feeding transverse plate, the bottom ends of the two special-shaped connecting blocks are fixed with the same lifting plate, and the top of the lifting plate is fixed with multiple triangular plates, and the ends of the two special-shaped connecting blocks close to each other are fixed with baffles, and the outer wall fixed sleeve of the rotating rod is provided with a rotating plate, and both ends of the rotating rod are fixed with winding wheels, and the two winding wheels are fixedly connected to the special-shaped connecting blocks through pull ropes; when the pipe fittings roll along the unloading inclined plate, the inertia of the pipe fittings drives the rotating plate to rotate counterclockwise, and the rotating plate drives the lifting plate and the baffle plate to move up through the pull rope, and the baffle plate releases the limit on the adjacent pipe fittings to be galvanized, and the triangular plate pushes the pipe fittings to be galvanized toward the direction of the giving way plate, and the feeding operation is automatically completed without manual operation, which not only reduces the labor intensity of the staff but also ensures the health of the staff.

[0038] In the present invention, a U-shaped plate is provided on the sliding sleeve of the outer wall of the L-shaped plate, a plurality of cross bars are slidably penetrated in the support plate, a blow box is slidably connected to the bottom of the U-shaped plate, and both sides of the bottom of the U-shaped plate are slidably connected to baffle bars fixedly connected to the blow box; the U-shaped plate is placed on top of the rotating shaft, and the baffle bar is tightly attached to one side of the rotating shaft under the action of a return spring, so that when the rotating shaft rotates clockwise, the blow box is always attached to the pipe fittings on the rotating shaft, so that the pipe fittings can be dried for a long time, ensuring that the pipe fittings are dried thoroughly and evenly.

[0039] In the present invention, the connecting arm and the fixed plate are driven to rotate by the rotating shaft, so that the uniform galvanizing, drying, zinc slag removal, unloading and loading operations of the pipe fittings can be completed in sequence, and the whole process does not require manual operation, which not only reduces the labor intensity of the staff but also ensures the health of the staff. In addition, during the galvanizing process, the thickness of the galvanized layer on the outer wall of the galvanized pipe can be guaranteed to be uniform, and the smoothness of the outer wall of the galvanized pipe can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A schematic diagram of the three-dimensional structure of a galvanizing device for hot-dip galvanized pipe production provided in Example 1 of the present invention;

[0041] Figure 2 This is a schematic diagram of the front and cross-sectional structure of a galvanizing device for hot-dip galvanized pipe production provided in Example 1 of the present invention;

[0042] Figure 3 A schematic diagram of a three-dimensional exploded structure of a fixed disk and a rotating shaft of a galvanizing device for hot-dip galvanized pipe production provided in Example 1 of the present invention;

[0043] Figure 4 A schematic diagram of a partial three-dimensional exploded structure of a connecting arm, a rotating shaft, a gear and a first tension spring of a galvanizing device for hot-dip galvanized pipe production provided in Example 1 of the present invention;

[0044] Figure 5 A schematic diagram of the front cross-sectional structure of a curved plate of a galvanizing device for producing hot-dip galvanized pipes provided in Example 1 of the present invention;

[0045] Figure 6 A schematic diagram of the three-dimensional structure of a bracket, a loading horizontal plate and a unloading inclined plate of a galvanizing device for hot-dip galvanized pipe production provided in Example 1 of the present invention;

[0046] Figure 7 A schematic diagram of a three-dimensional exploded structure of a loading horizontal plate, a unloading inclined plate and a support arm of a galvanizing device for hot-dip galvanized pipe production provided in Example 1 of the present invention;

[0047] Figure 8 A schematic diagram of a three-dimensional cross-sectional structure of a feeding horizontal plate, a feeding inclined plate and a horizontal frame plate of a galvanizing device for hot-dip galvanized pipe production provided in Example 1 of the present invention;

[0048] Fig. 9 A schematic diagram of the front cross-sectional structure of a yield plate of a galvanizing device for hot-dip galvanized pipe production provided in Example 1 of the present invention;

[0049] Fig.10 A schematic diagram of the three-dimensional structure of a connecting rod and a sliding rod of a galvanizing device for hot-dip galvanized pipe production provided in Example 1 of the present invention;

[0050] Fig.11 A schematic diagram of the three-dimensional structure of a galvanizing device for producing hot-dip galvanized pipes provided in Example 2 of the present invention;

[0051] Fig.12 A schematic diagram of the three-dimensional structure of a U-shaped plate, an inclined plate and a galvanizing pool of a galvanizing device for producing hot-dip galvanized pipes provided in Example 2 of the present invention;

[0052] Fig.13 This is a schematic diagram of the main cross-sectional structure of a U-shaped plate and a blast box of a galvanizing device for hot-dip galvanized pipe production provided in Example 2 of the present invention.

[0053] In the figure: 1. galvanizing tank; 2. gantry; 3. rotating shaft; 4. fixed plate; 5. connecting arm; 6. rotating shaft; 7. rubber column; 8. retaining ring; 9. synchronous wheel; 10. synchronous belt; 11. gear; 12. first tension spring; 13. arc rack; 14. vertical rod; 15. second tension spring; 16. arc plate; 17. guide block; 18. mounting arm; 19. receiving plate; 20. mounting plate; 21. bracket; 22. loading horizontal plate; 23. loading inclined plate; 24. supporting arm; 25. unloading inclined plate; 26. rotating rod; 27. rotating plate; 28. rewinding wheel; 29. ​​pull rope; 30 , lifting plate; 31, triangular plate; 32, special-shaped connecting block; 33, baffle; 34, give way plate; 35, connecting rod; 36, base; 37, fixed seat; 38, sliding rod; 39, spring; 40, limiting groove; 41, limiting rod; 42, limiting strip; 43, L-shaped plate; 44, U-shaped plate; 45, baffle; 46, guide rod; 47, blower box; 48, heating plate; 49, support plate; 50, cross bar; 51, return spring; 52, limit plate; 53, air injection pipe; 54, inclined panel; 55, return liquid hole; 56, cross frame plate; 57, receiving plate; 58, arc magnet. DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0055] Example 1: Reference Figure 1-Figure 10 , a hot-dip galvanized pipe production device, which is used in the field of galvanizing devices, includes a galvanizing pool 1 and a gantry 2, wherein a rotating shaft 3 is rotatably connected in the gantry 2, and the outer wall of the rotating shaft 3 is fixedly sleeved with two fixed disks 4, and the outer walls of the two fixed disks 4 are fixed with a plurality of connecting arms 5, these connecting arms 5 correspond to each other, and each connecting arm 5 is penetrated by a rotating shaft 6, each pair of corresponding rotating shafts 6 is used to clamp the pipe fittings, and these rotating shafts 6 will be immersed below the galvanizing liquid level in the galvanizing pool 1, and the galvanizing pools 1 are away from each other. Arc-shaped racks 13 are fixed to the inner walls on both sides, and an arc-shaped plate 16 is arranged above the rotating shaft 3. A sanding belt is installed at the bottom of the arc-shaped plate 16 for removing zinc slag from the outer wall of the galvanized pipe. A mounting plate 20 is fixed on one side of the galvanizing pool 1, and a bracket 21 is fixed on the top of the mounting plate 20. A loading cross plate 22 is fixed on the top of the bracket 21 for placing the pipes to be galvanized. A yield plate 34 is rotatably connected to one side of the loading cross plate 22 for receiving the galvanized pipes. A unloading inclined plate 25 is provided above the loading cross plate 22 for transporting the galvanized pipe to the outside.

[0056] Reference Figure 2-Figure 4In order to achieve uniform galvanizing of the pipe fittings, a galvanizing structure is provided, which includes a gear 11 fixed on the inner wall of the rotating shaft 6 near the gantry 2, the gear 11 meshing with the arc-shaped rack 13, and a synchronous wheel 9 is rotatably connected to the side of the connecting arm 5 near the gear 11. The synchronous wheel 9 is slidably sleeved on the outer wall of the rotating shaft 6 through a slide groove and a slider, and a first tension spring 12 is fixed between the synchronous wheel 9 and the gear 11. The first tension spring 12 is sleeved on the outer wall of the rotating shaft 6. Under the action of the first tension spring 12, the gear 11 will drive the rotating shaft 6 to insert into the pipe fitting to clamp the pipe fitting. A retaining ring 8 is also fixedly sleeved on the outer wall of the rotating shaft 6, which cooperates with the rotating shaft 6 to clamp and fix one end of the pipe fitting, and a rubber column 7 is fixed on the end of the rotating shaft 6 away from the gear 11 to increase the friction between the inner wall of the pipe fitting.

[0057] Specifically, when the two rotating shafts 6 move toward the middle under the action of the two first tension springs 12, the rotating shaft 6 will drive the rubber column 7 to insert into the pipe fitting. Due to the friction between the rubber column 7 and the inner wall of the pipe fitting, the rotating shaft 6 can drive the pipe fitting to rotate, and the rotating shaft 3 will drive the fixed plate 4 and the connecting arm 5 to rotate, and then drive the pipe fitting to rotate clockwise through the two rotating shafts 6 until the pipe fitting is completely immersed in the heated galvanizing liquid in the galvanizing pool 1. At this time, the gear 11 is meshed with the arc-shaped rack 13 to drive the rotating shaft 6 to rotate. The rotating shaft 6 can drive the remaining rotating shafts 6 to rotate through the cooperation of the synchronous wheel 9 and the synchronous belt 10, so that the pipe fitting is evenly galvanized in the galvanizing liquid.

[0058] Reference Figure 2 and Figure 5 In order to automatically remove the zinc slag on the outer wall of the galvanized pipe, a cleaning structure is provided, which includes a plurality of vertical rods 14 sliding through the gantry 2, the bottom ends of the vertical rods 14 are fixedly connected to the top of the arc plate 16, the outer wall of the vertical rods 14 is sleeved with a second tension spring 15 fixedly connected to the top of the gantry 2, and a plurality of guide blocks 17 are fixed on both sides of the arc plate 16, which are used to make way for the galvanized pipe so that it fits the bottom of the arc plate 16. The outer wall of the rotating shaft 3 is rotatably sleeved with two mounting arms 18, which are located between the two fixed plates 4, and the bottom of the two mounting arms 18 is fixed with the same receiving plate 19 for receiving the zinc slag.

[0059] Specifically, when the rotating shaft 6 drives the pipe to move upward, the guide block 17 will contact the outer wall of the pipe and play a guiding role, so that the outer wall of the pipe is close to the bottom of the arc plate 16. At this time, the sanding belt at the bottom of the arc plate 16 is in contact with the pipe. With the rotation of the fixed disk 4 and the connecting arm 5, the rotating shaft 6 and the pipe can continue to be driven to rotate. The sanding belt fits tightly to the outer wall of the pipe under the tension of the second tension spring 15. With the rotation of the pipe, the zinc slag on its outer wall will be removed and collected by the receiving plate 19. Since the center of gravity of the receiving plate 19 is below the rotating shaft 3, the receiving plate 19 always remains in a lower position when the rotating shaft 3 rotates, ensuring continuous collection of zinc slag.

[0060] Reference Figure 5 and Figure 6 In order to enable automatic unloading of pipe fittings, an unloading structure is also provided, and the unloading structure includes two receiving plates 57 fixed on one side of the gantry 2, and arc magnets 58 are fixed on the sides of the two receiving plates 57 close to each other. The material of the gear 11 is selected to be iron so as to generate magnetic attraction with the arc magnet 58, and the position of the arc magnet 58 is arranged above the unloading inclined plate 25, and multiple support arms 24 are fixed on both sides of the loading cross plate 22, and the two sides of the unloading inclined plate 25 are respectively fixedly connected to the corresponding support arms 24.

[0061] Specifically, when the rotating shaft 6 drives the pipe to move above the unloading inclined plate 25, the arc magnet 58 is just located on one side of the gear 11. Since the gear 11 is made of iron, the magnetic attraction between the arc magnet 58 and the gear 11 will drive the rotating shaft 6 and the rubber column 7 to move outward, thereby releasing the clamping of the two rotating shafts 6 on the pipe. At this time, the pipe will fall onto the unloading inclined plate 25 and roll to one side along the unloading inclined plate 25 to complete the unloading operation.

[0062] Reference Figure 5-Figure 10 In order to realize automatic feeding, a feeding structure is also provided. The feeding structure includes two slidable special-shaped connecting blocks 32 arranged on both sides of the feeding horizontal plate 22. The bottom ends of the two special-shaped connecting blocks 32 are fixed with the same lifting plate 30, and the lifting plate 30 is located below the feeding horizontal plate 22. A plurality of triangular plates 31 are fixed on the top of the lifting plate 30. The tops of these triangular plates 31 will penetrate the feeding horizontal plate 22, which is used to push the galvanized pipe fittings to one side. The ends of the two special-shaped connecting blocks 32 close to each other are fixed with a baffle 33 located above the feeding horizontal plate 22, which is used to The adjacent pipes to be galvanized are limited in position, and the distance between the baffle 33 and the triangular plate 31 corresponds to the diameter of the pipe to be galvanized. At the top of the unloading inclined plate 25, a rotating rod 26 is rotatably connected through a base plate, and a rotating plate 27 is fixedly sleeved on the outer wall of the rotating rod 26. When the galvanized pipe rolls along the unloading inclined plate 25, it can drive the rotating plate 27 to rotate counterclockwise. Winding wheels 28 are fixed at both ends of the rotating rod 26, and pull ropes 29 are fixed on the outer walls of the two winding wheels 28. The bottom ends of the two pull ropes 29 are respectively fixedly connected to the tops of the two special-shaped connecting blocks 32.

[0063] Specifically, when the pipe rolls along the unloading inclined plate 25, its inertia will drive the rotating plate 27 to rotate counterclockwise, and the rotating plate 27 rotates through the rotating rod 26 and the winding wheel 28. The winding wheel 28 drives the special-shaped connecting block 32 and the lifting plate 30 to move upward through the winding rope 29. The lifting plate 30 drives the triangular plate 31 to penetrate the feeding cross plate 22. At the same time, the baffle 33 moves upward to release the limit on the adjacent pipe to be galvanized. As the lifting plate 30 moves upward, the triangular plate 31 will push the pipe to be galvanized between the baffle 33 and the triangular plate 31 toward the direction of the yield plate 34, and block the pipe to be galvanized on the corresponding side. Subsequently, the lifting plate 30 and the rotating plate 27 are reset, the baffle 33 blocks the pipe to be galvanized again, and the pipe to be galvanized pushed by the triangular plate 31 moves to the yield plate 34 and is limited by the limit bar 42.

[0064] Reference Figure 8 and Fig.10 A cross frame 56 is fixed in the bracket 21, and multiple fixed seats 37 are fixed on one side of the cross frame 56. Sliding rods 38 are slidably penetrated in these fixed seats 37, and the top of the sliding rod 38 is fixed with a base 36, and the base 36 is slidably connected to one side of the cross frame 56. The outer wall of the sliding rod 38 is provided with a spring 39 fixedly connected to the top of the fixed seat 37, and the top of the spring 39 is fixedly connected to the bottom of the base 36. Connecting rods 35 are rotatably connected in multiple bases 36, and the tops of these connecting rods 35 are rotatably connected to the bottom of the give-way plate 34, so as to support the give-way plate 34 and keep it in a horizontal state.

[0065] Specifically, when the connecting arm 5 continues to drive the rotating shaft 6 to move downward until the rotating shaft 6 is inserted into the pipe to be galvanized, the cooperation between the rotating shaft 6 and the pipe to be galvanized is completed, and then, the rotating shaft 6 drives the pipe to be galvanized to rotate downward, and the pipe to be galvanized will push the yield plate 34 to rotate counterclockwise until the pipe to be galvanized is detached from the yield plate 34. At this time, the yield plate 34 will be reset under the elastic force of the spring 39. At the same time, the cooperation between the limit groove 40 and the limit rod 41 can limit the yield plate 34, ensuring that the yield plate 34 and the loading cross plate 22 are in the same horizontal plane, so that it can continue to bear the galvanized pipes in the later stage.

[0066] Reference Figure 8 and Fig. 9 A plurality of limit grooves 40 are arranged on one side of the clearance plate 34 close to the loading transverse plate 22, and a plurality of limit rods 41 are fixed on one side of the loading transverse plate 22 to ensure that the limit rods 41 cooperate with the limit grooves 40, so as to limit the rotation of the clearance plate 34 so that the clearance plate 34 and the loading transverse plate 22 can be kept in the same horizontal plane, and a limit strip 42 is fixed on the top of the clearance plate 34 to limit the galvanized pipe fittings to be coated, and a loading inclined plate 23 is fixed on the side of the loading transverse plate 22 away from the clearance plate 34, so that the galvanized pipe fittings to be coated can automatically roll toward the clearance plate 34.

[0067] Specifically, when the galvanized pipe fittings are detached from the clearance plate 34, the clearance plate 34 is reset under the elastic force of the spring 39, and the cooperation between the limit groove 40 and the limit rod 41 can limit the clearance plate 34, ensuring that the clearance plate 34 and the loading cross plate 22 are in the same horizontal plane, so as to continue to receive the galvanized pipe fittings in the later stage.

[0068] Reference Figure 3 and Figure 4 A notch is provided at the center of the arc-shaped rack 13 for temporarily releasing the meshing between the gear 11 and the arc-shaped rack 13 , and a plurality of synchronous wheels 9 located on one side of the fixed disk 4 are connected through a synchronous belt 10 .

[0069] Specifically, when the gear 11 is located at the notch, the plurality of rotating shafts 6 stop rotating, so that the rotating shaft 6 above the loading horizontal plate 22 can be inserted into the pipe fitting and clamped and fixed.

[0070] Example 2: Reference Figure 11-13 , improved on the basis of Example 1: an L-shaped plate 43 is fixed on the side of the galvanizing pool 1 away from the mounting plate 20, a U-shaped plate 44 is slidably sleeved on the outer wall of the L-shaped plate 43, and it is ensured that the U-shaped plate 44 cooperates with the rotating shaft 6, a support plate 49 is fixed at the bottom of the U-shaped plate 44, and a plurality of cross bars 50 are slidably penetrated in the support plate 49, one end of the plurality of cross bars 50 is fixed with the same blast box 47, and the blast box 47 is slidably set at the bottom of the U-shaped plate 44, a return spring 51 fixedly connected to the blast box 47 is sleeved on the outer wall of the cross bar 50, and the other end of the return spring 51 is fixedly connected to the support plate 49, a plurality of heating plates 48 are fixed on the top inner wall and the bottom inner wall of the blast box 47 for heating the air, a plurality of air injection pipes 53 are fixed on the side of the blast box 47 close to the support plate 49, and one end of the air injection pipe 53 A blower that penetrates the support plate 49 and is connected to the outside is used to blow hot air to the galvanized pipe. Baffle rods 45 are slidably connected to both sides of the bottom of the U-shaped plate 44, and it is ensured that the baffle rods 45 cooperate with the rotating shaft 6. At the same time, the two baffle rods 45 are fixedly connected to the blast box 47. The baffle rods 45 are tightly against the rotating shaft 6 under the action of the return spring 51, so that the hot air in the blast box 47 can dry the galvanized pipe. A guide rod 46 is fixed at the bottom of the baffle rod 45 to make way for the baffle rod 45. Limiting plates 52 are fixed on both sides of the L-shaped plate 43 to limit the U-shaped plate 44. An inclined plate 54 is fixed on one side of the L-shaped plate 43, and a return hole 55 that cooperates with the inclined plate 54 is provided on one side of the galvanizing pool 1. The inclined plate 54 and the return hole 55 cooperate to return the galvanizing liquid dripping from the galvanized pipe to the galvanizing pool 1.

[0071] Specifically, when the connecting arm 5 drives the pipe fitting to disengage from the galvanizing pool 1 and starts to move upward until the two ends of the U-shaped plate 44 are respectively placed on the two rotating shafts 6, the guide rod 46 makes way for the rotating shaft 6, so that the blocking rod 45 touches the rotating shaft 6, and the blast box 47 and the blocking rod 45 are tightly attached to the outer wall of the rotating shaft 6 under the elastic force of the return spring 51, and the cross bar 50 injects the hot air injected by the external blower into the blast box 47, and blows the air heated by the heating plate 48 in the blast box 47 to the pipe fitting on the outer wall of the rotating shaft 6. At this time, the rotating shaft 6 can drive the pipe fitting to rotate, and then evenly dry the outer wall of the pipe fitting. In addition, as the rotating shaft 6 moves upward, the rotating shaft 6 drives the U-shaped plate 44 to move upward, and the blocking rod 45 and the blast box 47 are always attached to the rotating shaft 6 under the action of the return spring 51, so that the pipe fitting can be dried for a long time, ensuring that the pipe fitting is thoroughly dried.

[0072] The method for using the galvanizing device for hot-dip galvanized pipe production comprises the following steps:

[0073] S1. The two rotating shafts 6 move toward the middle under the action of the two first tension springs 12, and the rotating shaft 6 drives the rubber column 7 to insert into the pipe fitting, and the friction between the rubber column 7 and the inner wall of the pipe fitting can make the rotating shaft 6 drive the pipe fitting to rotate, and the rotating shaft 3 is driven by the motor to rotate, and the rotating shaft 3 drives the fixed plate 4 and the connecting arm 5 to rotate, and the connecting arm 5 drives the pipe fitting to rotate clockwise through the two rotating shafts 6 until the pipe fitting is immersed in the galvanizing liquid heated in the galvanizing pool 1. At this time, the gear 11 and the arc-shaped rack 13 are meshed to drive the rotating shaft 6 to rotate, and the rotating shaft 6 can drive the rotation of the remaining rotating shafts 6 through the cooperation of the synchronous wheel 9 and the synchronous belt 10. At this time, the rotating shaft 6 drives the pipe fitting to rotate in the galvanizing liquid, so that the pipe fitting is evenly galvanized in the galvanizing liquid;

[0074] S2, the connecting arm 5 drives the pipe fitting to be separated from the galvanizing pool 1 and starts to move upward until the two ends of the U-shaped plate 44 are respectively placed on the two rotating shafts 6, and the guide rod 46 gives way to the rotating shaft 6 so that the blocking rod 45 can touch the rotating shaft 6, and the blast box 47 and the blocking rod 45 are tightly attached to the outer wall of the rotating shaft 6 under the elastic force of the return spring 51, and the cross bar 50 injects the hot air injected by the external blower into the blast box 47, and blows the air heated by the heating plate 48 in the blast box 47 to the pipe fitting on the outer wall of the rotating shaft 6, and the rotating shaft 6 can drive the pipe fitting to rotate at this time, thereby evenly drying the outer wall of the pipe fitting, in addition, the upward movement of the rotating shaft 6 in the water drives the U-shaped plate 44 to move upward, and the blocking rod 45 and the blast box 47 are always attached to the rotating shaft 6 under the action of the return spring 51, so that the pipe fitting can be dried for a long time, ensuring that the pipe fitting is thoroughly dried;

[0075] S3. When the rotating shaft 6 drives the pipe to move upward, the guide block 17 contacts the outer wall of the pipe and plays a guiding role, so that the outer wall of the pipe is close to the bottom of the arc plate 16. At this time, the sand belt at the bottom of the arc plate 16 contacts the pipe, and then with the rotation of the fixed plate 4 and the connecting arm 5, the rotating shaft 6 and the pipe can continue to be driven to rotate. The sand belt is tightly attached to the outer wall of the pipe under the tension of the second tension spring 15. With the rotation of the pipe, the zinc slag on its outer wall can be removed, and the removed zinc slag is collected by the receiving plate 19. Since the center of gravity of the receiving plate 19 is below the rotating shaft 3, the receiving plate 19 always remains in the lower position when the rotating shaft 3 rotates, ensuring that the receiving plate 19 continuously collects the zinc slag;

[0076] S4. When the rotating shaft 6 drives the pipe to move above the unloading inclined plate 25, the arc magnet 58 is just located on one side of the gear 11, and the gear 11 is made of iron. The magnetic attraction between the arc magnet 58 and the gear 11 drives the rotating shaft 6 and the rubber column 7 to move outward, and the two rotating shafts 6 release the clamping of the pipe, and the pipe falls on the unloading inclined plate 25, and then the pipe rolls to one side along the unloading inclined plate 25 to complete the unloading operation;

[0077] S5. When the pipe fittings roll along the unloading inclined plate 25, the inertia of the pipe fittings drives the rotating plate 27 to rotate counterclockwise, and the rotating plate 27 rotates through the rotating rod 26 and the winding wheel 28. The winding wheel 28 drives the special-shaped connecting block 32 and the lifting plate 30 to move upward through the winding rope 29. The lifting plate 30 drives the triangular plate 31 to penetrate the feeding cross plate 22, and the baffle plate 33 moves upward to release the limit on the adjacent pipe fittings to be galvanized. As the lifting plate 30 moves upward, the triangular plate 31 pushes the pipe fittings to be galvanized between the baffle plate 33 and the triangular plate 31 toward the direction of the yield plate 34, and the triangular plate 31 blocks the pipe fittings to be galvanized on the corresponding side at the same time. Then the lifting plate 30 and the rotating plate 27 are reset, and the baffle plate 33 blocks the pipe fittings to be galvanized again, and the triangular plate 31 pushes the pipe fittings to be galvanized to move to the yield plate 34 and is limited by the limit strip 42.

[0078] S6. When the rotating shaft 6 moves to the top of the clearance plate 34, the rotating shaft 6 just contacts one end of the pipe to be galvanized, and the gear 11 is disengaged from the arc magnet 58. After the gear 11 loses the magnetic attraction of the arc magnet 58, it moves toward the middle under the tension of the first tension spring 12. The two rotating shafts 6 clamp the pipe to be galvanized at the same time. At this time, the gear 11 located in the galvanizing pool 1 is just located at the notch on the arc rack 13. The multiple rotating shafts 6 stop rotating to prevent the rotating shaft 6 from driving the pipe to be galvanized. Then the connecting arm 5 continues to drive the rotating shaft 6 moves downward until the shaft 6 is inserted into the pipe to be galvanized, completing the cooperation between the shaft 6 and the pipe to be galvanized, and then the shaft 6 drives the pipe to be galvanized to rotate downward, and the pipe to be galvanized pushes the yield plate 34 to rotate counterclockwise until the pipe to be galvanized is separated from the yield plate 34, and the yield plate 34 is reset under the elastic force of the spring 39, and the cooperation of the limit groove 40 and the limit rod 41 can limit the yield plate 34, ensuring that the yield plate 34 and the feeding cross plate 22 are in the same horizontal plane, ensuring that the galvanized pipe can continue to be received in the later stage.

[0079] However, as is well known to those skilled in the art, the working principle and wiring method of the heating plate 48 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any selection according to their needs or convenience.

[0080] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A galvanizing device for hot-dip galvanized pipe production, comprising a galvanizing pool (1) and a gantry (2), characterized in that: A rotating shaft (3) is connected to the gantry (2) in a transversely rotatable manner, and the outer wall of the rotating shaft (3) is fixedly sleeved with two fixed disks (4). The outer walls of the two fixed disks (4) are fixed with a plurality of connecting arms (5). The plurality of connecting arms (5) located on the two fixed disks (4) correspond to each other. A rotating shaft (6) is passed through the plurality of connecting arms (5), and the corresponding two rotating shafts (6) are used to clamp the pipe fittings. The rotating shaft (6) is immersed below the galvanizing liquid level in the galvanizing pool (1), and arc-shaped racks (13) are fixed to the inner walls of the galvanizing pool (1) on both sides away from each other; An arc-shaped plate (16) is arranged above the rotating shaft (3), and a sanding belt is provided at the bottom of the arc-shaped plate (16) for removing zinc slag from the outer wall of the galvanized pipe; It also includes a mounting plate (20) fixed to one side of the galvanizing pool (1), a bracket (21) being fixed to the top of the mounting plate (20), a loading transverse plate (22) being fixed to the top of the bracket (21), the loading transverse plate (22) being used to place pipes to be galvanized, a side of the loading transverse plate (22) being rotatably connected to a clearance plate (34) for receiving the galvanized pipes, and a discharging inclined plate (25) being provided above the loading transverse plate (22) for conveying the galvanized pipes to the outside; A galvanizing structure, arranged on the rotating shaft (6), for uniformly galvanizing the pipe fittings in the galvanizing pool (1); A cleaning structure, arranged in the gantry (2), for automatically cleaning zinc slag on the outer wall of the galvanized pipe; A material unloading structure, arranged on one side of the gantry (2), is used to automatically unload the galvanized pipes so that the galvanized pipes are discharged along the unloading inclined plate (25); A loading structure, arranged in the loading horizontal plate (22), for automatically completing the loading operation during the unloading process; The galvanized structure comprises a gear (11) fixed to the inner wall of the rotating shaft (6) on the side close to the gantry (2), the gear (11) meshing with the arc-shaped rack (13), the connecting arm (5) being rotatably connected to a synchronous wheel (9) on the side close to the gear (11), and the synchronous wheel (9) being slidably sleeved on the outer wall of the rotating shaft (6) through a sliding groove and a sliding block, a first tension spring (12) being fixed to the side close to the synchronous wheel (9) and the gear (11), and the first tension spring (12) being sleeved on the outer wall of the rotating shaft (6), the first tension spring (12) driving the rotating shaft (6) to be inserted into the pipe fitting through the gear (11) for clamping the pipe fitting, a retaining ring (8) being fixedly sleeved on the outer wall of the rotating shaft (6), and the retaining ring (8) cooperating with the rotating shaft (6) for clamping and fixing one end of the pipe fitting, and a rubber column (7) being fixed to the end of the rotating shaft (6) away from the gear (11) for increasing the friction between the rubber column (7) and the inner wall of the pipe fitting; The material unloading structure comprises two receiving plates (57) fixed on one side of the gantry (2), arc-shaped magnets (58) are fixed on the sides of the two receiving plates (57) close to each other, the gear (11) is made of iron, a magnetic attraction force is generated between the gear (11) and the arc-shaped magnets (58), the arc-shaped magnets (58) are located above the unloading inclined plate (25), and a plurality of support arms (24) are fixed on both sides of the loading horizontal plate (22), and the two sides of the unloading inclined plate (25) are respectively fixedly connected to the corresponding support arms (24); The feeding structure comprises two special-shaped connecting blocks (32) slidably arranged on both sides of the feeding transverse plate (22); the bottom ends of the two special-shaped connecting blocks (32) are fixed with a same lifting plate (30), and the lifting plate (30) is located below the feeding transverse plate (22); a plurality of triangular plates (31) are fixed on the top of the lifting plate (30), and the top of the triangular plates (31) penetrates the feeding transverse plate (22) and is used to push the pipe fittings to be galvanized to one side; the ends of the two special-shaped connecting blocks (32) close to each other are fixed with a baffle (33) located above the feeding transverse plate (22) and is used to limit the adjacent pipe fittings to be galvanized, and the distance between the baffle (33) and the triangular plate (31) is Corresponding to the diameter of the pipe to be galvanized, the top of the material discharging inclined plate (25) is rotatably connected to a rotating rod (26) through a base plate, and the outer wall of the rotating rod (26) is fixedly sleeved with a rotating plate (27). The galvanized pipe rolls along the material discharging inclined plate (25) to drive the rotating plate (27) to rotate counterclockwise. Winding wheels (28) are fixed to both ends of the rotating rod (26), and pull ropes (29) are fixed to the outer walls of the two winding wheels (28). The bottom ends of the two pull ropes (29) are respectively fixedly connected to the tops of two special-shaped connecting blocks (32). The rotating plate (27) drives the lifting plate (30) to move upward through the winding wheel (28) and the pull rope (29) for automatic loading.

2. The galvanizing device for hot-dip galvanized pipe production according to claim 1, characterized in that: The cleaning structure comprises a plurality of vertical rods (14) slidingly passing through the gantry (2), the bottom ends of the plurality of vertical rods (14) being fixedly connected to the top of the arc-shaped plate (16), the outer wall of the vertical rod (14) being sleeved with a second tension spring (15) fixedly connected to the top of the gantry (2), the top end of the second tension spring (15) being fixed to the outer wall of the vertical rod (14), a plurality of guide blocks (17) being fixed on both sides of the arc-shaped plate (16) for making way for the galvanized pipe to fit the bottom of the arc-shaped plate (16), the outer wall of the rotating shaft (3) being sleeved with two mounting arms (18), the two mounting arms (18) being located between the two fixed plates (4), the bottoms of the two mounting arms (18) being fixed with a same receiving plate (19) for receiving zinc slag.

3. The galvanizing device for hot-dip galvanized pipe production according to claim 2, characterized in that: A cross frame (56) is fixed in the bracket (21), and a plurality of fixed seats (37) are fixed on one side of the cross frame (56). A sliding rod (38) is slidably inserted into each of the plurality of fixed seats (37). A base (36) is fixed to the top of each of the plurality of sliding rods (38), and the base (36) is slidably connected to one side of the cross frame (56). A spring (39) fixedly connected to the top of the fixed seat (37) is sleeved on the outer wall of the sliding rod (38), and the top of the spring (39) is fixedly connected to the bottom of the base (36). Connecting rods (35) are rotatably connected to each of the plurality of bases (36), and the tops of the plurality of connecting rods (35) are rotatably connected to the bottom of the clearance plate (34) for supporting the clearance plate (34) and maintaining it in a horizontal state.

4. The galvanizing device for hot-dip galvanized pipe production according to claim 3, characterized in that: A plurality of limiting grooves (40) are provided on one side of the clearance plate (34) close to the feeding transverse plate (22); a plurality of limiting rods (41) are fixed on one side of the feeding transverse plate (22); and the limiting rods (41) cooperate with the limiting grooves (40) to limit the rotation of the clearance plate (34), so that the clearance plate (34) and the feeding transverse plate (22) are in the same horizontal plane; a limiting strip (42) is fixed on the top of the clearance plate (34) to limit the position of the galvanized pipe fittings; and a feeding inclined plate (23) is fixed on the side of the feeding transverse plate (22) away from the clearance plate (34) to enable the galvanized pipe fittings to automatically roll toward the clearance plate (34).

5. The galvanizing device for hot-dip galvanized pipe production according to claim 4, characterized in that: A notch is provided at the center of the arc-shaped rack (13) for temporarily releasing the meshing between the gear (11) and the arc-shaped rack (13). A plurality of synchronous wheels (9) located on one side of the fixed disk (4) are connected by a synchronous belt (10).

6. The galvanizing device for hot-dip galvanized pipe production according to claim 5, characterized in that: An L-shaped plate (43) is fixed to a side of the galvanizing pool (1) away from the mounting plate (20), a U-shaped plate (44) is slidably sleeved on the outer wall of the L-shaped plate (43), the U-shaped plate (44) cooperates with the rotating shaft (6), a support plate (49) is fixed to the bottom of the U-shaped plate (44), a plurality of cross bars (50) are slidably penetrated in the support plate (49), one end of the plurality of cross bars (50) is fixed to the same blast box (47), and the blast box (47) is slidably connected to the rotating shaft (6). The cross bar (50) is arranged at the bottom of the U-shaped plate (44), the outer wall of the cross bar (50) is sleeved with a return spring (51) fixedly connected to the blast box (47), and the other end of the return spring (51) is fixedly connected to the support plate (49), the top inner wall and the bottom inner wall of the blast box (47) are both fixed with a plurality of heating plates (48) for heating the air, and a plurality of air injection pipes (53) are fixed on one side of the blast box (47) close to the support plate (49), and the air injection pipes (53) are One end of the U-shaped plate (44) passes through the support plate (49) and is connected to an external blower for blowing hot air toward the galvanized pipe. The bottom of the U-shaped plate (44) is slidably connected with a baffle rod (45) on both sides, and the baffle rod (45) cooperates with the rotating shaft (6). The two baffle rods (45) are fixedly connected to the blast box (47). The baffle rod (45) is tightly attached to the rotating shaft (6) under the action of the return spring (51) for allowing the hot air in the blast box (47) to dry the galvanized pipe. The baffle rod (45) A guide rod (46) is fixed at the bottom thereof for making way for the stop rod (45); limiting plates (52) are fixed on both sides of the L-shaped plate (43) for limiting the position of the U-shaped plate (44); an inclined plate (54) is fixed on one side of the L-shaped plate (43); a liquid return hole (55) cooperating with the inclined plate (54) is provided on one side of the galvanizing pool (1); the inclined plate (54) and the liquid return hole (55) cooperate to return the galvanizing liquid dripping from the galvanized pipe to the galvanizing pool (1).

7. The method for using the galvanizing device for hot-dip galvanized pipe production according to claim 6, characterized in that: The following steps are involved: S1, the rotating shaft (6) moves toward the middle under the action of the first tension spring (12), driving the rubber column (7) to insert into the pipe fitting, and driving the pipe fitting to rotate through friction; the motor drives the rotating shaft (3), thereby driving the connecting arm (5) and the pipe fitting to rotate clockwise until the pipe fitting is immersed in the galvanizing liquid; the gear (11) meshes with the arc-shaped rack (13), and through the cooperation of the synchronous wheel (9) and the synchronous belt (10), drives all the rotating shafts (6) to rotate, so that the pipe fitting is uniformly galvanized in the galvanizing liquid; S2, the connecting arm (5) drives the pipe to be separated from the galvanizing pool (1) and start to move upward; The U-shaped plate (44) is placed on the rotating shaft (6), and the blast box (47) and the stop rod (45) are attached to the outer wall of the rotating shaft (6) under the action of a spring; the hot air in the blast box (47) is blown toward the outer wall of the pipe, and the rotating shaft (6) drives the pipe to rotate, thereby achieving uniform drying; S3, when the rotating shaft (6) drives the pipe to move upward, the guide block (17) contacts the pipe and guides it to abut against the bottom of the arc plate (16); the sanding belt abuts against the outer wall of the pipe under the tension of the second tension spring (15), removes zinc slag as it rotates, and the zinc slag is collected by the receiving plate (19); S4. When the rotating shaft (6) drives the pipe to move above the unloading inclined plate (25), the arc-shaped magnet (58) and the iron gear (11) generate magnetic attraction, driving the rotating shaft (6) and the rubber column (7) to move outward, releasing the clamping of the pipe, and the pipe falls onto the unloading inclined plate (25), completing the unloading; S5, when the pipe fitting rolls along the material discharging inclined plate (25), its inertia drives the rotating plate (27) to rotate counterclockwise, and then drives the lifting plate (30) to move upward through the reeling wheel (28) and the reeling rope (29); the lifting plate (30) drives the triangular plate (31) to push the pipe fitting to be galvanized to move in the direction of the making way plate (34) and make way for the next pipe fitting; S6. When the rotating shaft (6) moves to the top of the clearance plate (34), it contacts and clamps the pipe to be galvanized; the gear (11) disengages from the arc magnet (58), loses the magnetic attraction, and moves toward the middle under the tension of the first tension spring (12); the connecting arm (5) continues to drive the rotating shaft (6) downward until it is inserted into the pipe to be galvanized and the fitting is completed; the rotating shaft (6) drives the pipe to be galvanized to rotate downward, pushing the clearance plate (34) to rotate until it is disengaged, and the clearance plate (34) is reset under the action of the spring (39) and is ready to receive the pipe to be galvanized.

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