A conveying device for hot-dip galvanizing steel sheets
By installing a rigid clamping system on the gantry frame, consisting of a load-bearing hanging shaft, an arched support frame, and a concave clamping plate, combined with a hydraulically driven limit slider and a leakage groove design, the problems of steel plate swaying and uneven coating in traditional steel wire conveying methods are solved, achieving efficient and stable hot-dip galvanizing of steel plates.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU LONGYAO POWER PARTS CO LTD
- Filing Date
- 2025-09-11
- Publication Date
- 2026-07-14
AI Technical Summary
In the traditional gantry steel wire conveying method, the steel plate has poor fixed stability and is prone to shaking, resulting in uneven coating thickness, quality defects, low operating efficiency, high labor costs, and consumables are prone to corrosion and aging, requiring frequent replacement.
A rigid clamping and fixing system is adopted, which is mounted on a gantry frame with a load-bearing lifting shaft, an arched support frame and a concave clamping plate. Combined with a hydraulic cylinder-driven limit slider and a liquid leakage groove design, it can realize the stable lifting of steel plates and automated tilting and pouring of zinc, replacing the traditional steel wire binding and manual operation.
It improves the stability of the steel plate, ensures the consistency of the coating quality, reduces material consumption and labor maintenance costs, and enhances operational efficiency and safety.
Smart Images
Figure CN224493443U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel plate processing technology, specifically to a conveying device for hot-dip galvanizing steel plates. Background Technology
[0002] Hot-dip galvanizing of steel plates is an industrial technology that involves immersing steel plates in high-temperature molten zinc. The chemical reaction and physical wetting between zinc and iron atoms on the steel plate surface create a dense, uniform composite protective layer of zinc-iron alloy and pure zinc. The process begins with pretreatment of the steel plate, including degreasing, pickling, rinsing, and fluxing to remove surface oil and oxide scale and create an active surface. The coating then adheres through high-temperature zinc immersion. Finally, post-treatments such as cooling and passivation enhance the coating's corrosion resistance and appearance. Its core advantages include strong coating adhesion, excellent resistance to atmospheric and electrochemical corrosion, and the ability to significantly extend the service life of steel plates in construction, transportation, and machinery industries. It is one of the most widely used traditional processes for steel plate corrosion protection.
[0003] In current hot-dip galvanizing steel plate processing and production scenarios, gantry cranes combined with wire-fixed conveyors are a common traditional method for transporting steel plates. This method typically involves manually or using simple machinery to bind the steel plates to be processed onto the hooks or beams of the gantry crane using wire. The gantry crane's lifting and moving mechanism then moves the steel plates sequentially through multiple processes, including degreasing, pickling, fluxing, galvanizing, and cooling. From a practical perspective, while this traditional conveying method is simple in structure and has low initial investment costs, it has gradually revealed several technical shortcomings under the demands of large-scale, high-precision production. Firstly… The steel plates have poor stability, and the binding strength of the steel wires depends on manual experience. If the binding is too loose, the steel plates will shake and tilt during transportation. Especially when immersed in or removed from the molten zinc, the steel plates are prone to collisions with the zinc pot wall and scratches due to the shift in the center of gravity. This not only causes zinc splashing and safety hazards, but also leads to uneven coating thickness and scratches on the surface of the steel plates. Secondly, the operation efficiency is low. The binding and unbinding of each steel plate requires manual operation, which not only increases labor costs, but also prolongs the transportation cycle of a single steel plate, making it difficult to adapt to the continuous operation requirements of modern production lines. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a conveying device for hot-dip galvanizing of steel plates, which has the advantages of high stability of steel plate fixing, high efficiency of automated operation, low material consumption, and strong consistency of coating quality. It solves the problems of easy swaying and tilting of steel plates, high manual operation cost and low efficiency, and easy corrosion and aging of steel wires requiring frequent replacement in the traditional gantry steel wire conveying method in the background technology.
[0005] To achieve the aforementioned goals of high stability of steel plate fixing, high efficiency of automated operation, low material consumption, and strong consistency of coating quality, this utility model provides the following technical solution: A conveying device for hot-dip galvanizing of steel plates, comprising a gantry frame, a traction cable slidably connected to the top of the gantry frame, a load-bearing hanger shaft provided in the middle of the gantry frame, arched support frames fixedly connected to both sides of the outer wall of the load-bearing hanger shaft, load-bearing crossbeams fixedly connected to the bottom of the two arched support frames, and multiple sets of placement components installed at the bottom of each load-bearing crossbeam. The component includes a concave plate, four steel plate placement plates, and two concave clamping plates. One set of the concave plates is fixedly connected to the bottom side of the supporting crossbeam. A threaded rod is rotatably connected through one side of the inner cavity of the concave plate. The two concave clamping plates are installed on both sides of the bottom edge of the supporting crossbeam. One of the concave clamping plates slides inside the concave plate and is threadedly connected to the threaded rod. Four steel plate placement plates are provided between the two concave clamping plates. The top of the steel plate placement plates is fixedly connected to the supporting crossbeam. Multiple placement slots are opened on one side of each of the four steel plate placement plates.
[0006] As a further improvement of this utility model: a limiting groove is provided at the top center of the bearing shaft, a limiting slider is slidably connected to the inner cavity of the limiting groove, and a hook is fixedly connected to the top of the limiting slider, and the hook is connected to the bearing shaft.
[0007] As a further improvement of this utility model: a hydraulic cylinder is installed on the top of the bearing shaft away from the limiting slide groove, and the output end of the hydraulic cylinder is fixedly connected to the limiting slider.
[0008] As a further improvement of this utility model, the two concave clamping plates are provided with evenly distributed leakage grooves at relatively far distances from each other.
[0009] As a further improvement of this utility model, the two concave clamping plates are provided with evenly distributed leakage grooves at relatively far distances from each other.
[0010] As a further improvement of this utility model, multiple pulleys are installed on both sides of the bottom of the gantry frame.
[0011] As a further improvement of this utility model: both sides of the outer wall of the limiting slider are fixedly connected with connecting rings, and the connecting rings are sleeved on the outer wall of the bearing shaft.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. In this utility model, the plate fixing and hoisting process involves placing the steel plate into the placement groove, pushing it to press against one side of the concave clamping plate, and then rotating the handle to cause the threaded rod to drive the other side of the concave clamping plate to clamp, forming a double-sided rigid clamping and fixing. Compared with traditional steel wire binding, this solves the problem of swaying of the steel plate caused by the elastic deformation of the steel wire, ensuring the stability of the steel plate during hot-dip galvanizing, and avoiding quality defects such as uneven coating thickness and incomplete coating. At the same time, the rigid handling system of gantry frame and pulley replaces steel wire hoisting, overcoming the disadvantages of steel wire being easy to corrode and age and needing frequent replacement, reducing material consumption and labor maintenance costs, and improving operational safety.
[0014] 2. In this utility model, the tilting zinc pouring process uses a hydraulic cylinder to push and pull, driving the limit slider to slide along the bearing hanger shaft groove, so that the placement component and steel plate tilt with the hook as the fulcrum. Combined with the liquid leakage groove design of the concave clamping plate, the hot-dip galvanizing is directed and poured out. Compared with manual pouring, this automated mechanism can control the tilting action, ensuring that the hot-dip galvanizing is poured out evenly and thoroughly, avoiding waste and subsequent cleaning trouble caused by residue in the placement plate and clamping plate. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram showing the positional relationship between the load-bearing crossbeam, the concave plate, and the steel plate placement plate in this utility model;
[0017] Figure 3 This is a schematic diagram showing the positional relationship between the limiting slider, hook, and hydraulic cylinder in this utility model;
[0018] Figure 4 This is a schematic diagram showing the positional relationship between the steel plate placement plate, the concave clamping plate, and the leakage groove in this utility model.
[0019] In the diagram: 1. Gantry frame; 2. Traction cable; 3. Bearing shaft; 4. Limiting groove; 5. Limiting slider; 6. Hook; 7. Hydraulic cylinder; 8. Arch support frame; 9. Bearing beam; 10. Concave plate; 11. Steel plate placement plate; 12. Placement groove; 13. Threaded rod; 14. Turning handle; 15. Concave clamping plate; 16. Leakage tank; 17. Pulley; 18. Connecting ring. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figures 1-4 In this embodiment of the utility model, a conveying device for hot-dip galvanizing steel plates includes a gantry frame 1. A traction cable 2 is slidably connected to the top of the gantry frame 1. A load-bearing hanger 3 is provided in the middle of the gantry frame 1. The load-bearing hanger 3 is the core load-bearing and force-transmitting component, bearing the weight of all the structures and steel plates below. It can also cooperate with a hydraulic cylinder 7 to achieve overall tilting. Arched support frames 8 are fixedly connected to both sides of the outer wall of the load-bearing hanger 3, connecting the load-bearing hanger 3 and the load-bearing crossbeam 9, distributing the weight, enhancing structural stability, and providing strong bending resistance. The bottom of the two arched support frames 8 is fixedly connected to the load-bearing crossbeam 9. Multiple sets of placement components are installed at the bottom of the load-bearing crossbeam 9. Each set of placement components includes a concave plate 10, four steel plate placement plates 11, and two concave clamping plates 15. A threaded rod 13 is rotatably connected through one side of the inner cavity of the concave plate 10, which is fixedly connected to the bottom side of the supporting beam 9. Two concave clamping plates 15 are installed on both sides of the bottom edge of the supporting beam 9. One of the concave clamping plates 15 slides in the concave plate 10 and is threadedly connected to the threaded rod 13. Four steel plate placement plates 11 are provided between the two concave clamping plates 15. The top of the steel plate placement plates 11 is fixedly connected to the supporting beam 9. Multiple placement slots are opened on one side of each of the four steel plate placement plates. When in use, the steel plate is first placed into the placement slot 12 of the steel plate placement plate 11, and the steel plate is pushed against one side of the concave clamping plate 15. The handle 14 is turned, and the threaded rod 13 rotates to drive the other concave clamping plate 15 to move, clamping the steel plate from both sides and improving the fixing stability.
[0022] A limiting groove 4 is provided at the top center of the bearing shaft 3. A limiting slider 5 is slidably connected to the inner cavity of the limiting groove 4. A hook 6 is fixedly connected to the top of the limiting slider 5, and the hook 6 is connected to the bearing shaft 3. A hydraulic cylinder 7 is installed on the top of the bearing shaft 3 away from the limiting groove 4, and the output end of the hydraulic cylinder 7 is fixedly connected to the limiting slider 5. When the hydraulic cylinder 7 is activated, its pushing or retracting action causes the limiting slider 5 to slide within the limiting groove 4 of the bearing shaft 3. The connecting ring 18 ensures the stability of the slider, allowing the bearing shaft 3, along with the supporting components and steel plate, to tilt left and right with the hook 6 as the fulcrum. This prevents some hot-dip galvanizing from remaining on the steel plate. Inside the plate 11 and the concave clamping plate 15, the two concave clamping plates 15 are provided with evenly distributed drain grooves 16 at relatively far distances. The hot-dip galvanizing of the concave clamping plates 15 is discharged through the drain grooves 16. The threaded rod 13 is fixedly connected to the handle 14 away from the concave plate 10. Multiple pulleys 17 are installed on both sides of the bottom of the gantry frame 1. The bottom pulleys 17 of the gantry frame 1 can flexibly adjust the position of the device. Connecting rings 18 are fixedly connected to both sides of the outer wall of the limiting slider 5. The connecting rings 18 are sleeved on the outer wall of the bearing shaft 3. The connecting rings 18 cooperate with the sliding groove structure of the limiting slider 5 and the bearing shaft 3 to further enhance the stability of the slider when sliding.
[0023] The working principle of this utility model is as follows: When in use, first place the steel plate into the placement groove 12 of the steel plate placement plate 11, push the steel plate against one side of the concave clamping plate 15, turn the handle 14, and the threaded rod 13 rotates to drive the other concave clamping plate 15 to move, clamping the steel plate from both sides, improving the fixing stability, and avoiding the impact of shaking on the coating quality during the hot-dip galvanizing process. At the same time, with the help of the top traction cable 2, the bearing lifting shaft 3 and the hook 6 of the gantry frame 1, the steel plate can be lifted and transported with the help of the lifting equipment. The bottom pulley 17 of the gantry frame 1 can flexibly adjust the position of the device, replacing the traditional method of relying on steel wire, reducing the frequent replacement problem caused by the corrosion and aging of steel wire, reducing material consumption and labor maintenance costs. At the same time, when the steel plate is removed, turn the handle 14 in the opposite direction, and the threaded rod 13 drives the concave clamping plate 15 to retract, releasing the clamping of the steel plate, and the steel plate can be taken out from the placement groove 12. The operation is simple.
[0024] Furthermore, the hydraulic cylinder 7 is activated, and its pushing or retracting action causes the limiting slider 5 to slide within the limiting groove 4 of the bearing shaft 3. The connecting ring 18 ensures the stability of the slider, allowing the bearing shaft 3, along with the placement components and steel plate, to tilt left and right with the hook 6 as the fulcrum. This prevents some hot-dip galvanizing from remaining in the steel plate placement plate 11 and the concave clamping plate 15. The hot-dip galvanizing in the concave clamping plate 15 is drained through the drain tank 16, replacing manual operation, improving efficiency, and the stable tilting action ensures consistent coating quality.
[0025] It should be noted that the specifications of the steel plate placement plate 11, placement groove 12 and concave clamping plate 15 are not limited and can be flexibly adjusted according to the actual size of the plate being processed. When the plate size is large, the overall size of the steel plate placement plate 11 can be increased, the groove width of the placement groove 12 can be widened, and the concave clamping plate 15 can be lengthened to accommodate it. If the plate size is small, the specifications of the corresponding components can be reduced to ensure that steel plates of different sizes can be stably placed and clamped, thereby improving the adaptability of the device to various processing requirements.
[0026] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0027] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A conveying device for hot-dip galvanizing of steel plates, comprising a gantry frame (1), characterized in that: The top of the gantry (1) is slidably connected to a traction cable (2), and a load-bearing lifting shaft (3) is provided in the middle of the gantry (1). Arched support frames (8) are fixedly connected to both sides of the outer wall of the load-bearing lifting shaft (3). Load-bearing crossbeams (9) are fixedly connected to the bottom of the two arched support frames (8). Multiple sets of placement components are installed at the bottom of each load-bearing crossbeam (9). Each set of placement components includes a concave plate (10), four steel plate placement plates (11), and two concave clamping plates (15). A set of concave plates (10) is fixedly connected to the load-bearing crossbeam (9). On one side of the bottom, a threaded rod (13) is rotatably connected through the inner cavity of the concave plate (10). Both concave clamping plates (15) are installed on both sides of the bottom edge of the supporting beam (9). One of the concave clamping plates (15) slides in the concave plate (10) and is threadedly connected to the threaded rod (13). Four steel plate placement plates (11) are provided between the two concave clamping plates (15). The top of the steel plate placement plate (11) is fixedly connected to the supporting beam (9). Multiple placement slots (12) are opened on one side of each of the four steel plate placement plates (11).
2. The conveying device for hot-dip galvanizing of steel plates according to claim 1, characterized in that: A limiting groove (4) is provided at the top center of the bearing shaft (3). A limiting slider (5) is slidably connected to the inner cavity of the limiting groove (4). A hook (6) is fixedly connected to the top of the limiting slider (5), and the hook (6) is connected to the bearing shaft (3).
3. The conveying device for hot-dip galvanizing of steel plates according to claim 1, characterized in that: A hydraulic cylinder (7) is installed on the side of the top of the bearing shaft (3) away from the limiting slide groove (4), and the output end of the hydraulic cylinder (7) is fixedly connected to the limiting slider (5).
4. The conveying device for hot-dip galvanizing of steel plates according to claim 1, characterized in that: The two concave clamping plates (15) are provided with evenly distributed leakage grooves (16) at relatively far distances from each other.
5. The conveying device for hot-dip galvanizing of steel plates according to claim 1, characterized in that: The threaded rod (13) is located away from the concave plate (10) and is fixedly connected to a throttle (14).
6. The conveying device for hot-dip galvanizing of steel plates according to claim 1, characterized in that: Multiple pulleys (17) are installed on both sides of the bottom of the gantry frame (1).
7. A conveying device for hot-dip galvanizing of steel plates according to claim 2, characterized in that: Both sides of the outer wall of the limiting slider (5) are fixedly connected with connecting rings (18), and the connecting rings (18) are sleeved on the outer wall of the bearing shaft (3).