A zinc pot uniform galvanizing production line

Abstract

The application provides a zinc pot uniform galvanizing production line and belongs to the technical field of hot-dip galvanizing zinc pots. The zinc pot uniform galvanizing production line comprises a base table top, a pot body arranged below the base table top, an upper support arranged above the pot body, an external overall support structure fixedly connected with the upper support, a plurality of lower supports fixedly connected with the bottom of the upper support, and a main shaft rotatably connected with the bottom of the lower support. The zinc pot uniform galvanizing production line further comprises a pressing rod assembly arranged at the inner side end of the pot body and used for self-rotating the steel pipe, a slow descent assembly arranged at the top of the base table top and used for allowing the steel pipe to tilt and fall, and a push plate assembly arranged at the inner side of the pot body and used for pushing the impurities on the surface of zinc liquid. The application sweeps and gathers the dross floating in the key operation areas of the feeding side and the discharging side to the liquid surface of the non-operation area in the middle of the zinc pot through the push plate, so that the liquid surface of the path through which the steel pipe enters and exits is kept relatively clean, and the adhesion of the dross is reduced.

Description

Technical Field

[0001] This invention relates to the field of zinc plating pot technology, and more specifically, to a zinc plating pot uniform zinc plating production line. Background Technology

[0002] The hot-dip galvanizing zinc pot is the core thermal equipment in the hot-dip galvanizing process. Its main function is to hold and heat molten zinc, allowing pre-treated steel workpieces to undergo wetting, alloying reactions, and coating formation within it. Modern industrial production often uses zinc pots made of ceramic material resistant to zinc molten metal corrosion, equipped with electromagnetic induction heating systems to achieve uniform control of the zinc molten metal temperature within a specific range. The design and stable operation of the zinc pot directly affect the quality of the coating.

[0003] However, during the galvanizing process, dross, mainly composed of zinc oxide and zinc-iron alloy particles, easily forms on the surface of the molten zinc in the zinc pot. This dross originates from two main pathways: first, the zinc molten zinc reacts with oxygen in the air, causing an oxidation reaction; second, the iron on the workpiece surface continuously reacts with the zinc molten zinc to form intermetallic compounds. When a workpiece is immersed in the molten zinc, if this type of dross exists on the surface of the liquid along its path, the dross will adhere to the workpiece surface, leading to defects such as roughness, particles, and incomplete plating in the coating, severely affecting the product's appearance quality and corrosion resistance.

[0004] How to invent a zinc pot uniform galvanizing production line to improve these problems has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] To overcome the above deficiencies, the present invention provides a zinc pot uniform galvanizing production line, which aims to improve the problems mentioned in the background.

[0006] This invention is implemented as follows:

[0007] This invention provides a zinc pot uniform galvanizing production line, including a base platform, a pot body disposed below the base platform, an upper support disposed above the pot body, the upper support being fixedly connected to an external integral support structure, multiple lower supports being fixedly connected to the bottom of the upper support, a main shaft being rotatably connected to the bottom of the lower supports, and multiple circumferentially arranged actuating rods being fixedly connected to the main shaft, a first feeding rack, an auxiliary rack, and a second feeding rack being fixedly connected to the inner side wall of the pot body, and further including: a pressure rod assembly disposed at the inner end of the pot body, the pressure rod assembly being used to rotate the steel pipe; a slow-descent assembly disposed at the top of the base platform, the slow-descent assembly being used to tilt and fall the steel pipe; and a deflector assembly disposed on the inner side of the pot body, the deflector assembly being used to push away impurities on the surface of the molten zinc.

[0008] Preferably, multiple circumferentially arranged levers form a group, and multiple groups of levers are arranged along the length of the main shaft. The end of the main shaft closer to the first feeding rack is connected to an external transmission assembly via gears. The first feeding rack and the second feeding rack are located at both ends along the length of the pot body. The second feeding rack includes a first guide frame, a second guide frame, and a third guide frame. The first guide frame, the second guide frame, and the third guide frame are all arranged in an arc-shaped square rod shape. The first guide frame, the second guide frame, and the third guide frame are arranged sequentially from top to bottom. A stabilizing frame is fixedly connected to the inner side wall of the pot body. The stabilizing frame is fixedly connected to the first guide frame, the second guide frame, and the third guide frame.

[0009] Preferably, the pressure bar assembly includes a plurality of first sliding rods slidably connected to the stabilizer frame. A first pressure bar is fixedly connected to the bottom end of each first sliding rod. The first pressure bar has the same curvature as the second guide frame. A connecting rod is fixedly connected to the bottom of the upper support. A slide is fixedly connected to the bottom of the connecting rod. A plurality of second sliding rods are vertically slidably arranged on the slide. A second pressure bar is fixedly connected to the bottom end of each second sliding rod. The second pressure bar has the same curvature as the second guide frame. The bottom surfaces of the first and second pressure bars are low-friction surfaces. The upper surfaces of the second and third guide frames are provided with anti-slip textures. Steel pipes are provided between the first and second guide frames and between the second and third guide frames. A spring telescopic rod is fixedly connected to the top of each first sliding rod.

[0010] Preferably, the descent control assembly includes a cylinder fixedly connected to the top of the base platform. The cylinder has a smooth cylindrical channel inside, and a push rod is slidably disposed inside the cylinder. The end of the push rod is sealed to the cylinder by an oil seal. An inclined seat is fixedly connected to the end of the push rod located outside the cylinder. The inclined seat has a first inclined surface and a second inclined surface. The first inclined surface corresponds to the gap position between the second guide frame and the first guide frame, and the second inclined surface corresponds to the gap position between the second guide frame and the third guide frame.

[0011] Preferably, a piston is fixedly connected to the end of the push rod. Oil passages are provided inside the push rod and piston. One end of the oil passage is located on the side wall of the push rod, close to the piston, and the other end is located on the piston end, away from the push rod. The diameter of the oil passage at the piston is larger than the diameter at the push rod. A first spring is fixedly connected to the side wall of the oil passage. A flow-limiting valve is fixedly connected to the end of the first spring. A sliding sleeve is fixedly connected to the side wall of the flow-limiting valve. The sliding sleeve slides within the oil passage. A grid-like arrangement of through holes is provided on the sliding sleeve. A through-hole is provided on the flow-limiting valve. A second spring is fixedly connected to the inner end of the cylinder body. The end of the second spring abuts against the piston. The flow-limiting valve blocks the end of the oil passage.

[0012] Preferably, the lever assembly includes a first cam fixedly sleeved on the main shaft, a first reciprocating ring sleeved on the first cam, the first reciprocating ring being elliptical in shape, the major axis of the first reciprocating ring being perpendicular to the main shaft, a first reciprocating rod fixedly connected to the side wall of the first reciprocating ring, a load-bearing frame fixedly connected to the bottom of the upper bracket, a stabilizing seat fixedly connected to the bottom of the load-bearing frame, the stabilizing seat being slidably connected to the first reciprocating rod, a first stabilizing groove connected to the bottom of the stabilizing seat via a connector, a stabilizing rod fixedly connected to the outer end of the first reciprocating rod, a sleeve rotatably sleeved on the stabilizing rod, a first actuating plate fixedly connected to the sleeve, and a sliding strip provided on the inner side of the first stabilizing groove.

[0013] Preferably, there are multiple sets of the dial assembly, with two sets of dial assemblies arranged between two sets of adjacent levers. A second cam is fixedly sleeved on the main shaft, and the protruding ends of the first cam and the second cam are arranged in opposite directions. The first cam and the second cam belong to their respective dial assemblies.

[0014] Preferably, the first stabilizing tank is elongated and has an elongated groove. The bottom of the sleeve on the stabilizing rod is fixedly connected to a plurality of spacers. The bottom end of the spacers is fixedly connected to a sliding bar. The sliding bar is cylindrical and slides inside the first stabilizing tank. The sidewall of the first stabilizing tank has a plurality of spacers, and the positions of the plurality of spacers correspond one-to-one with the positions of the plurality of spacers.

[0015] Preferably, the bottom of the upper support is rotatably connected to a plurality of force-adding rods, the side wall of the force-adding rod is rotatably connected to a push-spring telescopic rod, the end of the push-spring telescopic rod is rotatably connected to the load-bearing frame, and the side wall of the first reciprocating ring away from the first reciprocating rod is fixedly connected to a stop pin, the stop pin is arranged in a "T" shape, and the rod part of the stop pin connecting the first reciprocating ring passes through the bottom of the force-adding rod and slides with the force-adding rod.

[0016] Preferably, the main components of the shifter assembly where the second cam is located include a second reciprocating ring, a second reciprocating rod, a second shifter plate, and a second stabilizing groove. The shifter assembly where the second cam is located is arranged in the opposite direction to the shifter assembly where the first cam is located.

[0017] The beneficial effects of this invention are as follows: The device, through the continuous rotation of the main shaft, drives multiple sets of actuating rods on it to rotate synchronously, propelling the steel pipe continuously along the track. During the movement, the first and second pressure rods of the pressure rod assembly apply vertical pressure to both ends of the steel pipe. Utilizing the difference in friction coefficient between the low-friction coefficient coating on the bottom surface and the anti-slip texture on the top surface of the guide frame, the moving steel pipe simultaneously rotates around its own axis. This rotational motion ensures that the entire circumferential surface of the steel pipe is uniformly in contact with the molten zinc, guaranteeing the circumferential uniformity of the galvanized layer.

[0018] The rotational motion of the same main shaft also drives the first and second reciprocating rods to reciprocate through the first and second cams mounted on it, thereby causing the first and second actuating plates to swing in a fan shape on the surface of the zinc liquid. This reciprocating oscillation causes the two actuating plates to continuously sweep the scum floating in the key operating areas on the feeding and discharging sides towards and collect it on the surface of the non-operating area in the middle of the zinc pot, thus keeping the liquid surface along the path of the steel pipe relatively clean and reducing scum adhesion.

[0019] By setting up a slow-descent component, the steel pipe is slowly immersed in the zinc liquid with one end raised and the other end lowered when it enters through its inclined seat and hydraulic damping mechanism. This ensures that the air inside the steel pipe can be smoothly discharged, preventing plating defects caused by the formation of air pockets inside. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of a zinc pot uniform galvanizing production line provided by an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the zinc pot in a zinc pot uniform galvanizing production line provided by an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of a guide frame structure for a zinc pot uniform galvanizing production line provided by an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the pressure bar position in a zinc pot uniform galvanizing production line provided by an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the inclined seat structure of a zinc pot uniform galvanizing production line provided by an embodiment of the present invention;

[0026] Figure 6 yes Figure 5 Enlarged view of point A in the middle;

[0027] Figure 7 This is a schematic diagram of the structure of a deflector assembly in a zinc pot uniform galvanizing production line provided by an embodiment of the present invention;

[0028] Figure 8This is a schematic diagram of a reciprocating ring structure of a zinc pot uniform galvanizing production line provided by an embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of the actuating plate structure of a zinc pot uniform galvanizing production line provided by an embodiment of the present invention;

[0030] Figure 10 This is a schematic diagram of a force-adding rod structure for a zinc pot uniform galvanizing production line provided by an embodiment of the present invention;

[0031] Figure 11 This is a schematic diagram of the furthest position of the slag removal component of the slag removal plate assembly in a zinc pot uniform galvanizing production line provided by an embodiment of the present invention.

[0032] Figure 12 This is a schematic diagram of the feeding and discharging positions of the deflector assembly in a zinc pot uniform galvanizing production line provided by an embodiment of the present invention.

[0033] In the diagram: 1. Base platform; 2. Pot body; 3. Upper support; 4. Lower support; 5. Main shaft; 6. Actuating rod; 7. First feeding rack; 8. Auxiliary rack; 9. Second feeding rack; 11. First guide rack; 12. Second guide rack; 13. Third guide rack; 14. Stabilizing rack; 15. First sliding rod; 16. First pressure rod; 17. Second sliding rod; 18. Second pressure rod; 19. Steel pipe; 20. Spring telescopic rod; 21. Connecting rod; 22. Slide; 25. Cylinder body; 26. Inclined seat; 27. First inclined plane; 28. Second inclined plane; 31. Push rod; 32. Piston; 33. Oil passage; 34. Flow limiting valve; 35. Sliding sleeve; 36. First spring; 37. Flow limiting orifice; 38. Second spring; 41. First cam; 42. Second cam; 43. First reciprocating ring; 44. First reciprocating rod; 45. Support frame; 46. Stabilizer seat; 47. First stabilizing groove; 48. Stabilizer rod; 49. First actuating plate; 50. Sliding bar; 51. Spacer frame; 52. Spacer groove; 55. Force rod; 56. Push spring telescopic rod; 57. Stop pin; 61. Second reciprocating ring; 62. Second reciprocating rod; 63. Second actuating plate; 64. Second stabilizing groove. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example, refer to Figures 1-2A zinc pot uniform galvanizing production line includes a base platform 1, a pot body 2 disposed below the base platform 1, an upper support 3 disposed above the pot body 2, the upper support 3 being fixedly connected to an external integral support structure, multiple lower supports 4 being fixedly connected to the bottom of the upper support 3, a main shaft 5 being rotatably connected to the bottom of the lower supports 4, multiple circumferentially arranged actuating rods 6 being fixedly connected to the main shaft 5, a first feeding rack 7, an auxiliary rack 8, and a second feeding rack 9 being fixedly connected to the inner side wall of the pot body 2, and further includes: a pressure rod assembly disposed at the inner end of the pot body 2, the pressure rod assembly being used to rotate the steel pipe; a slow-descent assembly disposed at the top of the base platform 1, the slow-descent assembly being used to tilt and fall the steel pipe; and a deflector assembly disposed inside the pot body 2, the deflector assembly being used to push away impurities on the surface of the zinc liquid.

[0036] It should be noted that: the base platform 1 and the pot body 2 constitute the main container, and the upper support 3, lower support 4 and main shaft 5 constitute the installation foundation of the rotary actuation system. The first feeding rack 7 and the second feeding rack 9 are respectively fixed at both ends of the length direction of the pot body 2, and the auxiliary frame 8 is located between the two. The three together form a through track in the width direction of the zinc pot, and the steel pipe 19 will move along this width direction.

[0037] When the device is in standby mode, the pot 2 contains molten zinc, the main shaft 5 and the actuating rod 6 are stationary, the pressure rod assembly is in a ready-to-press position under its own weight and the action of the spring, and the inclined seat 26 of the slow-descent assembly is in an extended ready position under the action of the second spring 38. When dynamic operation begins, the external feeding mechanism simultaneously feeds the two steel pipes 19 to the stepped feeding structure on the base platform 1, preparing them to roll into the channel formed by the first guide frame 11, the second guide frame 12 and the third guide frame 13 of the second discharge frame 9. At this time, the slow-descent assembly is triggered first, guiding the steel pipes 19 into a specific posture; then, the main shaft 5 drives the actuating rod 6 to rotate, pushing the steel pipes 19 to move along the width direction. During this process, the pressure rod assembly causes the steel pipes 19 to rotate, and at the same time, the actuating plate assembly begins to oscillate periodically, performing the slag removal function. The galvanized steel pipes 19 are pushed to the end of the track along the width direction by the actuating rod 6 and removed by the lifting mechanism.

[0038] Reference Figures 2-4Multiple circumferentially arranged levers 6 form a group. Multiple groups of levers 6 are arranged along the length of the main shaft 5. The end of the main shaft 5 closest to the first feeding rack 7 is connected to an external transmission assembly via gears. The first feeding rack 7 and the second feeding rack 9 are located at both ends along the length of the pot body 2. The second feeding rack 9 includes a first guide frame 11, a second guide frame 12, and a third guide frame 13. The first guide frame 11, the second guide frame 12, and the third guide frame 13 are all arranged in an arc-shaped square rod shape. The first guide frame 11, the second guide frame 12, and the third guide frame 13 are arranged sequentially from top to bottom. A stabilizing frame 14 is fixedly connected to the inner side wall of the pot body 2. The stabilizing frame 14 is fixedly connected to the first guide frame 11, the second guide frame 12, and the third guide frame 13. The main shaft 5 extends along the length of the zinc pot, and the multiple groups of levers 6 on it drive multiple steel pipes 19 to move synchronously. The stabilizer 14 is fixed to the side walls of the first guide frame 11, the second guide frame 12 and the third guide frame 13 by multiple connecting rods arranged in a "mountain" shape, which enhances the stability of the guide frame in the zinc liquid.

[0039] The pressure bar assembly includes multiple first sliding rods 15 slidably connected to the stabilizer 14. The bottom end of each first sliding rod 15 is fixedly connected to a first pressure rod 16. The first pressure rod 16 has the same curvature as the second guide frame 12. The bottom of the upper support 3 is fixedly connected to a connecting rod 21. The bottom of the connecting rod 21 is fixedly connected to a slide 22. Multiple second sliding rods 17 are vertically slidably arranged on the slide 22. The bottom end of each second sliding rod 17 is fixedly connected to a second pressure rod 18. The second pressure rod 18 has the same curvature as the second guide frame 12. The bottom surfaces of the first pressure rods 16 and the second pressure rods 18 are low-friction surfaces. The upper surfaces of the second guide frame 12 and the third guide frame 13 are both provided with anti-slip textures. Steel pipes 19 are provided between the first guide frame 11 and the second guide frame 12, and between the second guide frame 12 and the third guide frame 13. The top of each first sliding rod 15 is fixedly connected to a spring telescopic rod 20.

[0040] It should be noted that the bottoms of the first pressure rod 16 and the second pressure rod 18 are coated with a smooth, high-temperature resistant and wear-resistant coating (such as a Teflon coating), which reduces the friction between them and the outer wall of the steel pipe 19. The upper surfaces of the second guide frame 12 and the third guide frame 13, which are in contact with the bottom of the pressed steel pipe 19, are textured with anti-slip patterns, increasing friction. When the actuating rod 6 pushes the steel pipe 19 to roll along the guide frame in the width direction, due to the different vertical friction forces generated by the pressure rods and guide frames on the steel pipe, the steel pipe 19 rotates around its own axis while sliding. Throughout the entire rolling process along the track, the steel pipe 19 is forced to undergo a rotational motion around its own axis. This rotational motion causes the outer circumference of the steel pipe 19 to undergo multiple complete orientation changes, ensuring that the molten zinc covers its entire circumferential surface. This helps to make the final galvanized layer more uniform in the circumferential direction.

[0041] The spring telescopic rod 20 bears the weight of the first sliding rod 15 and the first pressure rod 16, and provides initial downward pressure. Its maximum extended length defines the lowest position of the first pressure rod 16 under its own weight. This lowest position is set below the expected rolling trajectory height of the steel pipe 19 on the second guide frame 12, allowing the bottom surface of the first pressure rod 16 to continuously press against the top of the passing steel pipe 19 by its own weight, thereby providing stable positive pressure to generate the necessary frictional difference. Simultaneously, the two ends of the first pressure rod 16 are arc-shaped and upward-pointing. When the end of the steel pipe 19 contacts this arc-shaped end, the resulting vertical component force overcomes the slight resistance of the spring telescopic rod 20 and pushes the first pressure rod 16 and the first sliding rod 15 upwards as a whole, thus clearing a path for the end of the steel pipe 19 and achieving a smooth transition. Similarly, a spring telescopic rod adapted to its weight is also connected above the second pressure rod 18 to maintain a similar function.

[0042] Reference Figures 5-6 The slow-descent assembly includes a cylinder 25 fixedly connected to the top of the base platform 1. The cylinder 25 has a smooth cylindrical channel inside. A push rod 31 is slidably disposed inside the cylinder 25. The end of the push rod 31 is sealed to the cylinder 25 by an oil seal. An inclined seat 26 is fixedly connected to the end of the push rod 31 located outside the cylinder 25. A first inclined surface 27 and a second inclined surface 28 are disposed on the inclined seat 26. The first inclined surface 27 corresponds to the gap position between the second guide frame 12 and the first guide frame 11. The second inclined surface 28 corresponds to the gap position between the second guide frame 12 and the third guide frame 13.

[0043] A piston 32 is fixedly connected to the end of the push rod 31. An oil passage 33 is provided inside the push rod 31 and the piston 32. One end of the oil passage 33 is located on the side wall of the push rod 31, which is close to the piston 32. The other end of the oil passage 33 is located at the end of the piston 32, which is far away from the push rod 31. The diameter of the oil passage 33 at the piston 32 is larger than the diameter at the push rod 31. A first spring 36 is fixedly connected to the side wall of the oil passage 33. A flow limiting valve 34 is fixedly connected to the end of the first spring 36. A sliding sleeve 35 is fixedly connected to the side wall of the flow limiting valve 34. The sliding sleeve 35 slides in the oil passage 33. The sliding sleeve 35 has through holes arranged in a grid pattern. A through flow limiting hole 37 is opened on the flow limiting valve 34. A second spring 38 is fixedly connected to the inner end of the cylinder 25. The end of the second spring 38 abuts against the piston 32. The flow limiting valve 34 blocks the end of the oil passage 33.

[0044] It should be noted that when the steel pipe 19 rolls in from the external feeding mechanism, the end located on the second discharge rack 9 first contacts the corresponding inclined surface. The end of the steel pipe 19 that contacts the inclined surface seat 26 is blocked, and the other end falls due to the obstruction, forming an inclined posture. This inclined posture causes the axis of the internal cavity of the steel pipe 19 to form an angle with the horizontal plane of the zinc liquid during the subsequent slow descent immersion process. This allows the lower end of the steel pipe 19 to be immersed in the zinc liquid first, and the zinc liquid can flow into the pipe along the inclined pipe wall. The air in the pipe cavity rises along the pipe wall and is smoothly discharged from the higher end that has not yet been immersed in the liquid. This process avoids the problem of a closed air pocket forming at the top of the pipe cavity when the steel pipe 19 is immersed quickly in a horizontal state, which cannot be discharged, and ensures that the inner cavity of the steel pipe 19 can be quickly filled with zinc liquid.

[0045] The cylinder 25 is filled with hydraulic oil and is separated by the piston 32. Under the action of gravity, the steel pipe 19 slides downward along the corresponding inclined surface on the inclined seat 26, pushing the inclined surface to drive the push rod 31 to retract into the cylinder 25. The volume of the left cavity of the piston 32 decreases, and the oil pressure increases. The oil first enters the oil passage 33 through the flow-limiting hole 37 at the end of the piston 32 and flows into the right cavity of the piston 32. Due to the small flow area of ​​the flow-limiting hole 37, the flow of oil is obstructed, thus causing the piston 32 to move slowly, achieving the "slow descent" effect when the steel pipe 19 pushes the inclined seat 26. When the steel pipe 19 has completely slid down, the external force disappears. At this time, the compressed second spring 38 releases its elastic force, pushing the piston 32 to return to its position quickly. During the return process, the oil pressure in the right cavity of the piston 32 increases, and the oil pushes the flow-limiting valve 34 to stretch the first spring 36, causing the flow-limiting valve 34 to leave the end of the oil passage 33 that it blocked, thereby opening a larger return channel. The oil can flow back to the left chamber of piston 32 quickly, so that push rod 31 and inclined seat 26 can quickly return to the initial extended position, ready to receive the next steel pipe 19.

[0046] Reference Figures 7-8 The lever assembly includes a first cam 41 fixedly sleeved on the main shaft 5, a first reciprocating ring 43 sleeved on the first cam 41, the first reciprocating ring 43 being elliptical in shape, the major axis of the first reciprocating ring 43 being vertically arranged, a first reciprocating rod 44 being fixedly connected to the side wall of the first reciprocating ring 43, a load-bearing frame 45 being fixedly connected to the bottom of the upper bracket 3, a stabilizing seat 46 being fixedly connected to the bottom of the load-bearing frame 45, the stabilizing seat 46 being slidably connected to the first reciprocating rod 44, a first stabilizing groove 47 being connected to the bottom of the stabilizing seat 46 through a connector, a stabilizing rod 48 being fixedly connected to the outer end of the first reciprocating rod 44, a sleeve being rotatably sleeved on the stabilizing rod 48, a first lever plate 49 being fixedly connected to the sleeve, and a sliding strip 50 being provided on the inner side of the first stabilizing groove 47.

[0047] It should be noted that the first reciprocating rod 44 passes through a fixed stabilizing seat 46, which is rigidly connected to the load-bearing frame 45 and the first stabilizing groove 47. Therefore, the stabilizing seat 46 and the first stabilizing groove 47 are fixed in the horizontal direction. Since the first stabilizing groove 47 is provided with a sliding bar 50 that can slide up and down, the horizontal reciprocating motion of the first reciprocating rod 44, combined with the vertical sliding freedom of the sliding bar 50 within the first stabilizing groove 47, jointly determines that the motion trajectory of the end of the first actuating plate 49 is a fan-shaped reciprocating oscillation.

[0048] There are multiple sets of lever assemblies. Two sets of lever assemblies are set between two adjacent sets of levers 6. A second cam 42 is fixedly sleeved on the main shaft 5. The protruding ends of the first cam 41 and the second cam 42 are set in opposite directions. The first cam 41 and the second cam 42 belong to their respective lever assemblies.

[0049] Reference Figures 9-10 The first stabilizing groove 47 is elongated and has an elongated groove inside. Multiple spacers 51 are fixedly connected to the bottom of the sleeve on the stabilizing rod 48. The bottom end of the spacer 51 is fixedly connected to the sliding bar 50. The sliding bar 50 is cylindrical and slides inside the first stabilizing groove 47. Multiple spacer slots 52 are opened on the side wall of the first stabilizing groove 47. The multiple spacer slots 52 correspond one-to-one with the multiple spacer slots 51. Multiple force-adding rods 55 are rotatably connected to the bottom of the upper support 3. A push spring telescopic rod 56 is rotatably connected to the side wall of the force-adding rod 55. The end of the push spring telescopic rod 56 is rotatably connected to the load-bearing frame 45. A stop pin 57 is fixedly connected to the side wall of the first reciprocating ring 43 away from the first reciprocating rod 44. The stop pin 57 is T-shaped and the rod part of the stop pin 57 connects to the first reciprocating ring 43, passes through the bottom of the force-adding rod 55, and slides with the force-adding rod 55.

[0050] It should be noted that the push-spring telescopic rod 56 always applies a pulling force to the force-applying rod 55, which causes the bottom of the force-applying rod 55 to tend to move in the opposite direction to the reciprocating rod. This design eliminates the transmission gap between the first cam 41 and the first reciprocating ring 43. It ensures that no matter what angle the first cam 41 rotates to, the first reciprocating ring 43 and the first reciprocating rod 44 connected to it, under the action of the tension spring force, can stably retract the first actuating plate 49 to a vertical or near-vertical state when it is not in the working position, avoiding it from staying in a position that may interfere with the feeding for a long time. Symmetrically, the actuating plate assembly where the second cam 42 is located also has a similar force constraint mechanism, which makes its actuating plate tend to move away from the feeding end, thereby jointly ensuring the smooth flow of the feeding and discharging paths.

[0051] The main components of the dial assembly where the second cam 42 is located include the second reciprocating ring 61, the second reciprocating rod 62, the second actuating plate 63, and the second stabilizing groove 64. The dial assembly where the second cam 42 is located is arranged in the opposite direction to the dial assembly where the first cam 41 is located.

[0052] It should be noted that during the galvanizing process, the main shaft 5 rotates continuously. The first cam 41 and the second cam 42, fixed to it, rotate accordingly, driving the two sets of lever assemblies to perform reciprocating motions in opposite phases. (See attached...) Figure 11 As shown in the figure, this diagram illustrates the state of the slag agglomeration operation performed by the agitator assembly: When the protrusion of the first cam 41 rotates horizontally to point towards the feed end, i.e., the side of the second discharge rack 9, it pushes the first reciprocating ring 43 and the first reciprocating rod 44 to move to the right to their maximum stroke. At this time, the first agitator plate 49, through the transmission of the stabilizing rod 48 and the spacer 51, swings to its rightmost and lowest position, with its highest point below the zinc liquid surface. Simultaneously, the protrusion of the second cam 42 necessarily points towards the discharge end, i.e., the side of the first discharge rack 7, driving the second reciprocating rod 62 and the second agitator plate 63 to swing to their leftmost and lowest position. At this time, viewed from the length direction of the zinc pot, the first agitator plate 49 and the second agitator plate 63 cover the area above the channel through which the steel pipe 19 passes.

[0053] The function of the actuating plate is to collect scum on the liquid surface. Its movement is a continuous fan-shaped oscillating cycle: taking the first actuating plate 49 as an example, its initial position is nearly vertical, with its top end above the zinc liquid surface. When the protrusion of the first cam 41 pushes the first reciprocating ring 43, it drives the first reciprocating rod 44 to move to the right, causing the first actuating plate 49 to swing and extend from the vertical position to the lower right below the liquid surface until it reaches the lower right limit position. This extension action is part of its working stroke, carrying a small amount of scum along the way to the right. When it starts from the lower right limit position below the liquid surface, it is pulled back by the tension spring mechanism as the first cam 41 rotates, and its movement trajectory is to swing back from below the liquid surface to the upper left. This retraction action is its main scum-pushing stroke, using the plate surface of the actuating plate to push the scum located in the feed side area to the left by a large amount. The movement phase of the second actuating plate 63 is completely opposite. The two components work together, like two opposing scrapers, sweeping the surface of the molten zinc in a reciprocating fan-shaped motion. This continuously drives and gathers the scum, originally scattered in the working areas on the feeding and discharging sides, towards the non-working area in the middle. This keeps the surface of the molten zinc in the critical working area through which the steel pipe 19 enters and exits the zinc pot relatively clean, reducing the possibility of scum adhering to the steel pipe surface and creating conditions for obtaining a smooth coating. The gathered scum is easily collected and removed by the operator periodically. The consumption and replenishment of the molten zinc are carried out according to a mature process.

[0054] As attached Figure 12As shown, the device is in the loading and unloading state. At this time, the main shaft 5 stops rotating. In the unloading position, one of the actuating levers 6 remains horizontal, allowing the two galvanized steel pipes 19 to be pushed horizontally out of the track end for removal and processing by the subsequent lifting mechanism. Although the first actuating plate 49 and the second actuating plate 63 are tilted at a certain angle at this time, this posture is their upward retraction state during the motion cycle, with their tops positioned above the zinc liquid surface. This "retraction state" ensures that the overall height of the actuating plates is high, and will not cause spatial interference to the horizontal pushing and removal of the steel pipes 19. This is the specific loading and unloading operation period. Except for the unloading actuating lever 6 in the horizontal position, the angle between all other actuating levers 6 and the zinc liquid surface is greater than the angle between the horizontal actuating lever 6 and the liquid surface, and will not affect the normal loading and unloading process of the steel pipes.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A zinc pot uniform galvanizing production line, comprising a base platform (1), a pot body (2) disposed below the base platform (1), an upper support (3) disposed above the pot body (2), the upper support (3) being fixedly connected to an external integral support structure, a plurality of lower supports (4) being fixedly connected to the bottom of the upper support (3), a main shaft (5) being rotatably connected to the bottom of the lower supports (4), a plurality of circumferentially arranged actuating rods (6) being fixedly connected to the main shaft (5), and a first feeding rack (7), an auxiliary rack (8), and a second feeding rack (9) being fixedly connected to the inner side wall of the pot body (2), characterized in that, Also includes: A pressure rod assembly is disposed at the inner end of the pot body (2), and the pressure rod assembly is used to make the steel pipe rotate. A slow-descent assembly is disposed on the top of the base platform (1) and is used to tilt the steel pipe as it falls. A deflector assembly is disposed on the inner side of the pot body (2), and the deflector assembly is used to push away impurities on the surface of the molten zinc. Multiple circumferentially arranged levers (6) form a group. Multiple groups of levers (6) are arranged along the length of the main shaft (5). The end of the main shaft (5) closer to the first feeding rack (7) is connected to an external transmission assembly via gears. The first feeding rack (7) and the second feeding rack (9) are located at both ends along the length of the pot body (2). The second feeding rack (9) includes a first guide frame (11), a second guide frame (12), and a third guide frame (13). The first guide frame (11), the second guide frame (12), and the third guide frame (13) are all arranged in an arc-shaped square rod shape. The first guide frame (11), the second guide frame (12), and the third guide frame (13) are arranged sequentially from top to bottom. A stabilizing frame (14) is fixedly connected to the inner wall of the pot body (2). The stabilizing frame (14) is fixedly connected to the first guide frame (11), the second guide frame (12), and the third guide frame (13). The pressure bar assembly includes multiple first sliding rods (15) slidably connected to the stabilizer (14). The bottom end of each first sliding rod (15) is fixedly connected to a first pressure rod (16). The first pressure rod (16) has the same curvature as the second guide frame (12). The bottom of the upper support (3) is fixedly connected to a connecting rod (21). The bottom of the connecting rod (21) is fixedly connected to a slide (22). Multiple second sliding rods (17) are vertically slidably arranged on the slide (22). The bottom end of each second sliding rod (17) is fixedly connected to... There is a second pressure rod (18), which has the same curvature as the second guide frame (12). The bottom surfaces of the first pressure rod (16) and the second pressure rod (18) are low friction coefficient surfaces. The upper surfaces of the second guide frame (12) and the third guide frame (13) are provided with anti-slip textures. Steel pipes (19) are provided between the first guide frame (11) and the second guide frame (12), and between the second guide frame (12) and the third guide frame (13). A spring telescopic rod (20) is fixedly connected to the top of the first sliding rod (15). The slow-descent assembly includes a cylinder (25) fixedly connected to the top of the base platform (1). The cylinder (25) has a smooth cylindrical channel inside. A push rod (31) is slidably disposed inside the cylinder (25). The end of the push rod (31) is sealed to the cylinder (25) by an oil seal. An inclined seat (26) is fixedly connected to the end of the push rod (31) located outside the cylinder (25). The inclined seat (26) is provided with a first inclined surface (27) and a second inclined surface (28). The first inclined surface (27) corresponds to the gap position between the second guide frame (12) and the first guide frame (11). The second inclined surface (28) corresponds to the gap position between the second guide frame (12) and the third guide frame (13). The dial assembly includes a first cam (41) fixedly sleeved on the main shaft (5), a first reciprocating ring (43) sleeved on the first cam (41), the first reciprocating ring (43) being elliptical in shape, the major axis of the first reciprocating ring (43) being vertically arranged, a first reciprocating rod (44) being fixedly connected to the side wall of the first reciprocating ring (43), a load-bearing frame (45) being fixedly connected to the bottom of the upper bracket (3), a stabilizing seat (46) being fixedly connected to the bottom of the load-bearing frame (45), the stabilizing seat (46) being slidably connected to the first reciprocating rod (44), a first stabilizing groove (47) being connected to the bottom of the stabilizing seat (46) through a connector, a stabilizing rod (48) being fixedly connected to the outer end of the first reciprocating rod (44), a sleeve being rotatably sleeved on the stabilizing rod (48), a first actuating plate (49) being fixedly connected to the sleeve, and a sliding strip (50) being provided on the inner side of the first stabilizing groove (47).

2. The zinc pot uniform galvanizing production line according to claim 1, characterized in that, A piston (32) is fixedly connected to the end of the push rod (31). An oil passage (33) is provided inside the push rod (31) and the piston (32). One end of the oil passage (33) is located on the side wall of the push rod (31) close to the piston (32), and the other end is located at the end of the piston (32) away from the push rod (31). The diameter of the oil passage (33) at the piston (32) is larger than the diameter at the push rod (31). A first spring (36) is fixedly connected to the side wall of the oil passage (33). A flow limiting valve (34) is fixedly connected to the end of the cylinder (25). A sliding sleeve (35) is fixedly connected to the side wall of the flow limiting valve (34). The sliding sleeve (35) slides in the oil passage (33). A grid-shaped through hole is opened on the sliding sleeve (35). A through flow limiting hole (37) is opened on the flow limiting valve (34). A second spring (38) is fixedly connected to the inner end of the cylinder (25). The end of the second spring (38) abuts against the piston (32). The flow limiting valve (34) blocks the end of the oil passage (33).

3. The zinc pot uniform galvanizing production line according to claim 1, characterized in that, The dial assembly consists of multiple sets. Two sets of dial assemblies are provided between two adjacent sets of levers (6). A second cam (42) is fixedly sleeved on the main shaft (5). The protruding ends of the first cam (41) and the second cam (42) are arranged in opposite directions. The first cam (41) and the second cam (42) belong to their respective dial assemblies.

4. The zinc pot uniform galvanizing production line according to claim 1, characterized in that, The first stabilizing groove (47) is elongated and has an elongated groove inside. The bottom of the sleeve on the stabilizing rod (48) is fixedly connected to a plurality of spacers (51). The bottom end of the spacers (51) is fixedly connected to a sliding bar (50). The sliding bar (50) is cylindrical and slides inside the first stabilizing groove (47). The side wall of the first stabilizing groove (47) is provided with a plurality of spacers (52), and the positions of the plurality of spacers (52) correspond one-to-one with the positions of the plurality of spacers (51).

5. The zinc pot uniform galvanizing production line according to claim 1, characterized in that, The bottom of the upper support (3) is rotatably connected to a plurality of force-adding rods (55), and the side wall of the force-adding rod (55) is rotatably connected to a push-spring telescopic rod (56). The end of the push-spring telescopic rod (56) is rotatably connected to the load-bearing frame (45). The side wall of the first reciprocating ring (43) away from the first reciprocating rod (44) is fixedly connected to a stop pin (57). The stop pin (57) is T-shaped. The stop pin (57) connects to the rod part of the first reciprocating ring (43), passes through the bottom of the force-adding rod (55), and slides with the force-adding rod (55).

6. The zinc pot uniform galvanizing production line according to claim 3, characterized in that, The paddle assembly where the second cam (42) is located includes a second reciprocating ring (61), a second reciprocating rod (62), a second actuating plate (63), and a second stabilizing groove (64). The paddle assembly where the second cam (42) is located is arranged in the opposite direction to the paddle assembly where the first cam (41) is located.

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