Pickling equipment for steel structure production

By using a gantry structure and a double-layer pickling tank design, the problems of acid overflow and inconvenient workpiece unloading in existing equipment have been solved, realizing the automation and safety improvement of the steel structure pickling process, and improving production efficiency and safety.

CN224395033UActive Publication Date: 2026-06-23HUBEI SHENGHONG BUILDING MATERIALS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI SHENGHONG BUILDING MATERIALS CO LTD
Filing Date
2025-07-04
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing pickling equipment used in steel structure production is prone to acid overflow during the movement of the pickling tank, which also makes it inconvenient to unload and rinse the workpieces, affecting safety and operational efficiency.

Method used

The mobile frame, which adopts a gantry structure, moves the installation and placement components. Combined with the guide rods of hydraulic rods and telescopic rods, it enables the precise feeding of workpieces into the pickling tank. Through the double-layer pickling tank design and the coordination of overflow port and electric control valve, the pickling solution can be recycled and safely discharged.

Benefits of technology

It improves the automation level and production efficiency of pickling operations, ensures stable workpiece position, enhances pickling efficiency and safety, and avoids problems such as acid spillage and workpiece displacement.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224395033U_ABST
    Figure CN224395033U_ABST
Patent Text Reader

Abstract

The utility model relates to a steel structure production equipment field especially relates to a pickling equipment for steel structure production, including electric track, moving frame, mounting piece, placing piece, pickling piece, moving frame whole is gantry structure, the bottom of moving frame is installed and is connected with electric track, the pickling piece is installed between electric track, the main part of pickling piece is pickling tank, pickling tank is at the right side of the initial work end of moving frame, in the utility model, through the steel structure piece (such as angle iron, small -size connecting strip, shaft sleeve, adapter pipe spare etc. ) is put into the inside from the entrance of the placing area, through the cooperation of workpiece dead weight and oblique baffle, makes the stable placement of workpiece in the inside of placing box, through the sleeve joint of connecting plate and placing rod, twists into the limiting pipe in the thread groove, the limiting of connecting plate is carried out, avoids the problem that the connecting plate falls off in the pickling movement, promotes the use stability of overall device.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of steel structure production equipment, specifically a pickling equipment for steel structure production. Background Technology

[0002] Pickling is a common surface pretreatment process for steel structural components, mainly used to remove oxide scale, rust, oil, and other impurities from the steel surface to improve the adhesion and corrosion resistance of subsequent coatings or platings. The primary purpose of pickling is to remove surface oxide scale and rust. During processing, transportation, or storage, oxide scale or rust easily forms on the surface of steel. These substances severely affect the adhesion between the coating or plating and the substrate. Pickling effectively dissolves these oxides, exposing a clean metal surface and improving surface cleanliness. Pickling removes oil, dust, impurities, and other contaminants from the steel surface, ensuring no residue and providing a clean base for subsequent processes such as spraying, electroplating, or welding, thus enhancing the adhesion of coatings or platings. The surface of the steel after pickling becomes rough and more reactive, improving the adhesion of paints, platings, or solders and extending the service life of the steel structure. Pickling is usually the first step in steel structure surface treatment, creating favorable conditions for subsequent processes such as phosphating, passivation, spraying, or electroplating.

[0003] A Chinese patent (application number: CN219568072U) proposes a pickling device for steel structure production and processing. This device is equipped with a motor, a gear transmission mechanism, and a gear and rack transmission mechanism. When the motor is started, the gear transmission mechanism, fixedly connected to the motor's output shaft, rotates. During this rotation, the first and second gears drive the first and second half-gears to rotate, respectively. The first and second half-gears mesh with the rack, causing the pickling tank, fixedly connected to the rack, to reciprocate. This reciprocates the liquid within the pickling tank, making it more evenly agitated and improving the cleaning effect. While this solution can complete the pickling operation, it also has drawbacks: because the pickling tank reciprocates via the rack's movement, although this generates shaking, there are no corresponding protective components around it, making it easy for acid to overflow outside the pickling tank, posing a safety hazard. Furthermore, the arrangement of the pickling tank and pickling frame makes it inconvenient to unload and rinse the workpieces within the pickling frame, hindering practical operation. Summary of the Invention

[0004] The main purpose of this utility model is to solve the above-mentioned existing technical problems and provide a pickling equipment for steel structure production.

[0005] The specific solution of this utility model is: a pickling equipment for steel structure production, including an electric track, a moving frame, an installation component, a placement component, and a pickling component. The moving frame is an overall gantry structure. The bottom of the moving frame is installed and connected to the electric track. A pickling component is installed between the electric tracks. The main body of the pickling component is a pickling tank. The pickling tank is located on the right side of the initial working end of the moving frame. An installation component is installed at the bottom of the moving frame. The installation component is installed and connected to the placement component.

[0006] According to the above technical solution, the installation and placement components are moved along the electric track by the mobile frame of the gantry structure, so as to accurately send the steel structure workpiece into the pickling tank for pickling, which can improve the automation level and production efficiency of the pickling operation.

[0007] Furthermore, the mounting component consists of a support plate, a guide rod, a hydraulic rod, a fixing plate, and a placement rod. A guide rod is installed in the center of the top surface of the support plate. The guide rod is a telescopic rod structure. Hydraulic rods are installed on both sides of the guide rod. The other ends of the guide rod and the hydraulic rods are connected to the inner top surface of the movable frame. A fixing plate is installed on the bottom surface of the support plate. A placement rod is installed on the right side of the fixing plate. Multiple sets of placement rods are installed at intervals. The placement rod is a cylindrical structure.

[0008] According to the above technical solution, the lifting and lowering are achieved by the guide rod of the hydraulic rod and the telescopic rod structure. Combined with the setting of the cylindrical placement rod and the fixed plate, the placement component can be stably supported, and its lifting and movement can be precisely controlled to ensure that the steel structure is stable in position and easy to operate during the pickling process.

[0009] Furthermore, the placement component comprises a placement box, partitions, placement areas, through holes, top rods, and connecting plates. The right side of the placement box is open. The interior of the placement box is divided into placement areas by partitions, and multiple placement areas are provided. The partitions are generally inclined downwards. Through holes are provided on the bottom and both sides of the placement box. Top rods are installed at intervals on the top of the placement box, and connecting plates are installed on the top of the top rods. The connecting plates are generally hollow circular tube structures. The number and orientation of the placement components are consistent with the placement rods.

[0010] According to the above technical solution, multiple placement areas are separated by inclined partitions inside the open placement box. With the help of bottom and side through holes, the steel structure can be placed in an orderly manner, the acid can be fully contacted and drained quickly. The top rod and the hollow round tube connecting plate are precisely matched with the placement rod to ensure that the workpiece is stably supported and easy to load and unload, which greatly improves the pickling efficiency and quality.

[0011] Furthermore, a threaded groove is provided at the right end of the placement rod, and a limiting tube is screwed into the threaded groove. The limiting tube has an internal thread structure.

[0012] According to the above technical solution, by screwing a limiting tube with an internal thread structure into the threaded groove at the right end of the placement rod, the installation position of the placement component can be flexibly adjusted and locked, effectively preventing it from shifting or falling off during equipment operation or pickling, thus enhancing the reliability and safety of the placement structure.

[0013] Furthermore, the pickling component comprises a pickling tank, a connecting frame, an inner box, a connecting edge, and an overflow port. The connecting frame is installed on the top of the pickling tank, and the inner box is installed inside the top opening of the pickling tank. The connecting edge is installed on the top of the inner box, and the connecting edge is bolted to the connecting frame. A gap is left between the outer side of the inner box and the inner wall of the pickling tank. Overflow ports are spaced at intervals on the top of both sides of the inner box. Pickling solution is pre-poured into the inner box. A liquid outlet pipe is installed at the bottom of the inner box, and an electrically controlled valve is built into the liquid outlet pipe. A space is left between the inner bottom surface of the pickling tank and the bottom surface of the inner box. A drain pipe is installed at the bottom of the pickling tank, and an electrically controlled valve is built into the drain pipe.

[0014] According to the above technical solution, the double-layer structure design of the inner tank and the pickling tank, combined with the overflow port, the liquid outlet pipe and the liquid drain pipe controlled by the electric valve, realize the recycling of pickling solution, automatic liquid level adjustment and convenient discharge of waste liquid. The bolt connection of the double-layer tank ensures the structural stability and easy maintenance, which significantly improves the controllability and safety of the pickling process.

[0015] Furthermore, the interior of the inner box is divided into multiple pickling chambers by baffles, and the number of pickling chambers is the same as the number of placement boxes.

[0016] According to the above technical solution, by dividing the pickling chambers into a number that match the number of placement boxes by baffles, multiple groups of steel structure workpieces can be pickled synchronously in different areas, avoiding mutual interference between different workpieces during the pickling process. Combined with the precise alignment of the placement parts, the efficiency and targeting of the pickling operation are greatly improved.

[0017] Furthermore, an auxiliary box is installed on the right side of the pickling tank, and the left side wall of the auxiliary box is fitted into the pickling tank.

[0018] According to the above technical solution, the equipment function can be expanded by attaching an auxiliary box to the right side of the pickling tank.

[0019] Compared with the prior art, this utility model has the following advantages: 1. By placing steel structural components (such as angle iron, small connecting strips, bushings, and adapter pipes) into the placement area from the entrance of the placement area, the workpiece is stably placed inside the placement box by the cooperation of its own weight and the inclined partition. By fitting the connecting plate into the placement rod, the entire placement box is suspended at the placement rod. The placement box is moved above the pickling box by the moving frame. The hydraulic rod is activated to drive the support plate to descend under the limit of the guide rod until the placement box enters the pickling box and stops, so that the workpiece in the placement box can be pickled. By fitting the connecting plate into the placement rod, the limiting tube is screwed into the threaded groove to limit the connecting plate, avoiding the problem of the connecting plate falling off during the pickling movement, thus improving the overall stability of the device.

[0020] 2. By immersing the placement box into the inner tank, the workpiece is mixed with the pickling solution entering through the through hole for pickling. When the liquid level fluctuates, the fluctuating pickling solution enters the bottom of the pickling tank through the overflow port. After accumulating for a period of time, the accumulated pickling solution is extracted by connecting the external hose to the drain pipe, filtered, and reused to avoid the problem of pickling solution overflow and improve the overall safety of the device. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of a pickling equipment for steel structure production;

[0022] Figure 2 This is a detailed disassembled view of the installation and placement components of a pickling equipment used in steel structure production.

[0023] Figure 3 A detailed diagram of the internal structure of a pickling device for steel structure production.

[0024] Figure 4 A detailed structural diagram of a pickling component in a pickling equipment used for steel structure production.

[0025] In the diagram: 1. Electric track; 2. Moving frame; 3. Mounting component; 31. Support plate; 32. Guide rod; 33. Hydraulic rod; 34. Fixing plate; 35. Placement rod; 36. Threaded groove; 37. Limiting tube; 4. Placement component; 41. Placement box; 42. Partition; 43. Placement area; 44. Through hole; 45. Top rod; 46. Connecting plate; 5. Pickling component; 51. Pickling box; 52. Connecting frame; 53. Inner box; 54. Connecting edge; 55. Baffle; 56. Overflow port; 57. Drain pipe; 6. Auxiliary box. Detailed Implementation

[0026] See Figure 1-4This embodiment is a pickling equipment for steel structure production, including an electric track 1, a moving frame 2, an installation component 3, a placement component 4, and a pickling component 5. The moving frame 2 is a gantry structure, and its bottom is connected to the electric track 1. The pickling component 5 is installed between the electric tracks 1. The main body of the pickling component 5 is a pickling tank 51, which is located on the right side of the initial working end of the moving frame 2. The installation component 3 is installed at the bottom of the moving frame 2 and is connected to the placement component 4. During operation, the moving frame 2 is moved by the electric track 1, which in turn moves the installation component 3 and the placement component 4 to the top of the pickling tank 51. The installation component 3 moves the placement component 4 down into the pickling tank 51 for pickling. After the operation is completed, the moving frame 2 continues to move to the right side of the electric track 1, which facilitates manual handling of the placement component 4 and placement of the next batch of workpieces to be processed.

[0027] Furthermore, the mounting component 3 consists of a support plate 31, a guide rod 32, a hydraulic rod 33, a fixing plate 34, and a placement rod 35. The guide rod 32 is installed in the middle of the top surface of the support plate 31. The guide rod 32 is a telescopic rod structure. Hydraulic rods 33 are installed on both sides of the guide rod 32. The other ends of the guide rod 32 and the hydraulic rods 33 are connected to the inner top surface of the movable frame 2. The fixing plate 34 is installed on the bottom surface of the support plate 31. The placement rod 35 is installed on the right side of the fixing plate 34. Multiple sets of placement rods 35 are installed at intervals. The placement rod 35 is a cylindrical structure.

[0028] Furthermore, the placement component 4 consists of a placement box 41, a partition 42, a placement area 43, a through hole 44, a top rod 45, and a connecting plate 46. The right side of the placement box 41 is open. The interior of the placement box 41 is divided into multiple placement areas 43 by the partition 42. The partition 42 is inclined downwards. Through holes 44 are provided on the bottom and both sides of the placement box 41. Top rods 45 are installed at intervals on the top of the placement box 41. A connecting plate 46 is installed on the top of the top rod 45. The connecting plate 46 is a hollow cylindrical structure. The number and orientation of the placement components 4 are consistent with the placement rods 35. At that time, steel structural components (such as angle iron, small connecting strips, bushings, and adapter fittings) are placed into the placement area 43 from the entrance of the placement area 43. The workpiece is stably placed inside the placement box 41 by the workpiece's own weight and the cooperation of the inclined partition 42. The connecting plate 46 is fitted into the placement rod 35, so that the entire placement box 41 is suspended at the placement rod 35. The placement box 41 is moved above the pickling box 51 by the moving frame 2. The hydraulic rod 33 is activated to drive the support plate 31 to descend under the limit of the guide rod 32 until the placement box 41 enters the pickling box 51 and stops, so that the workpiece in the placement box 41 is pickled.

[0029] Furthermore, a threaded groove 36 is provided on the right end of the placement rod 35. A limiting tube 37 is screwed into the threaded groove 36. The limiting tube 37 has an internal thread structure. During operation, after the connecting plate 46 is sleeved with the placement rod 35, the limiting tube 37 is screwed into the threaded groove 36 to limit the connection plate 46, preventing the connection plate 46 from falling off during pickling and improving the overall stability of the device.

[0030] Furthermore, the pickling component 5 consists of a pickling tank 51, a connecting frame 52, an inner box 53, a connecting edge 54, and an overflow port 56. The connecting frame 52 is installed on the top of the pickling tank 51, and the inner box 53 is installed inside the top opening of the pickling tank 51. The connecting edge 54 is installed on the top of the inner box 53 and is bolted to the connecting frame 52. A gap is left between the outer side of the inner box 53 and the inner wall of the pickling tank 51. Overflow ports 56 are spaced at intervals on both sides of the top of the inner box 53. Pickling solution is pre-filled inside the inner box 53. An outlet pipe is installed at the bottom of the inner box 53, and the outlet pipe contains an electrically controlled valve. The inner bottom of the pickling tank 51... There is a space between the bottom surface of the pickling tank 51 and the bottom surface of the inner tank 53. The bottom of the pickling tank 51 is equipped with a drain pipe 57, which has a built-in electric control valve. During operation, the placement box 41 is immersed into the inner tank 53, so that the workpiece is mixed with the pickling solution entering from the through hole 44 for pickling. When the liquid level fluctuates, the fluctuating pickling solution enters the inner bottom of the pickling tank 51 through the overflow port 56. After accumulating for a period of time, the accumulated pickling solution is extracted by connecting the external hose to the drain pipe 57, filtered, and reused to avoid the problem of pickling solution overflow and improve the overall safety of the device.

[0031] Furthermore, the inner chamber 53 is divided into multiple pickling chambers by baffles 55. The number of pickling chambers is the same as the number of placement boxes 41. The purpose is to provide sufficient pickling solution in a single pickling chamber so that the workpiece is not affected by the adjacent liquid level during the pickling process.

[0032] Furthermore, an auxiliary box 6 is installed on the right side of the pickling tank 51. The left side wall of the auxiliary box 6 is fitted to the pickling tank 51. During operation, after pickling is completed, the placement box 41 is lifted and moved above the auxiliary box 6 by the moving frame 2, so that the attached pickling liquid drips down. At the same time, the workpiece in the placement box 41 can be rinsed in the auxiliary box 6.

[0033] The working principle of this embodiment is as follows: Steel structural components (such as angle iron, small connecting strips, bushings, and adapter fittings) are placed into the placement area 43 from the entrance. The workpiece's own weight, combined with the inclined partition 42, ensures stable placement inside the placement box 41. The connecting plate 46 is fitted onto the placement rod 35, suspending the entire placement box 41. The moving frame 2 moves the placement box 41 above the pickling tank 51. The hydraulic rod 33 is activated, causing the support plate 31 to descend under the limit of the guide rod 32 until the placement box 41 enters the pickling tank 51, allowing the workpiece inside to undergo pickling treatment. The connecting plate 46... After being connected to the placement rod 35, the limiting tube 37 is screwed into the threaded groove 36 to limit the connection plate 46, preventing the connection plate 46 from falling off during pickling movement and improving the overall stability of the device. By immersing the placement box 41 into the inner box 53, the workpiece is mixed with the pickling solution entering through the through hole 44 for pickling. When the liquid level fluctuates, the fluctuating pickling solution enters the bottom of the pickling tank 51 through the overflow port 56. After accumulating for a period of time, the accumulated pickling solution is extracted by connecting the external hose to the drain pipe 57, filtered, and reused to prevent the pickling solution from overflowing and improve the overall safety of the device.

Claims

1. A pickling equipment for steel structure production, comprising an electric track, a moving frame, mounting components, placement components, and pickling components, characterized in that: The mobile frame is a gantry structure. The bottom of the mobile frame is connected to the electric rails. Pickling components are installed between the electric rails. The main body of the pickling components is a pickling tank. The pickling tank is located on the right side of the initial working end of the mobile frame. An installation component is installed at the bottom of the mobile frame. The installation component is connected to the placement component.

2. The pickling equipment for steel structure production according to claim 1, characterized in that: The mounting component consists of a support plate, guide rods, hydraulic rods, a fixing plate, and placement rods. A guide rod is installed in the center of the top surface of the support plate. The guide rod is a telescopic rod structure. Hydraulic rods are installed on both sides of the guide rod. The other ends of the guide rods and hydraulic rods are connected to the inner top surface of the movable frame. A fixing plate is installed on the bottom surface of the support plate. A placement rod is installed on the right side of the fixing plate. Multiple sets of placement rods are installed at intervals. The placement rods are cylindrical in shape.

3. The pickling equipment for steel structure production according to claim 1, characterized in that: The placement component consists of a placement box, partitions, placement areas, through holes, top rods, and connecting plates. The right side of the placement box is open. The interior of the placement box is divided into multiple placement areas by partitions. The partitions are generally inclined downwards. Through holes are provided on the bottom and both sides of the placement box. Top rods are installed at intervals on the top of the placement box. Connecting plates are installed on the top of the top rods. The connecting plates are generally hollow cylindrical structures. The number and orientation of the placement components are consistent with the placement rods.

4. The pickling equipment for steel structure production according to claim 3, characterized in that: The right end of the placement rod is provided with a threaded groove, and a limiting tube is screwed into the threaded groove. The limiting tube is an internally threaded tube structure.

5. The pickling equipment for steel structure production according to claim 1, characterized in that: The pickling component consists of a pickling tank, a connecting frame, an inner box, a connecting edge, and an overflow port. The connecting frame is installed on the top of the pickling tank, and the inner box is installed inside the top opening of the pickling tank. The connecting edge is installed on the top of the inner box and is bolted to the connecting frame. A gap is left between the outer side of the inner box and the inner wall of the pickling tank. Overflow ports are spaced at intervals on the top of both sides of the inner box. Pickling solution is pre-poured into the inner box. An outlet pipe with an internal electric control valve is installed at the bottom of the inner box. A space is left between the inner bottom surface of the pickling tank and the bottom surface of the inner box. A drain pipe with an internal electric control valve is installed at the bottom of the pickling tank.

6. The pickling equipment for steel structure production according to claim 5, characterized in that: The inner box is divided into multiple pickling chambers by baffles, and the number of pickling chambers is the same as the number of boxes.

7. The pickling equipment for steel structure production according to claim 5, characterized in that: An auxiliary box is installed on the right side of the pickling tank, and the left side wall of the auxiliary box is fitted into the pickling tank.