Pickling device for bolt production
The bolt pickling device achieves automated lifting and rotation transfer through a combination of electric push rods and gear transmission. Combined with an inclined mesh base plate and snap-fit structure, it solves the problems of low efficiency, high safety hazards and uneven cleaning in traditional pickling processes, and achieves efficient and safe bolt cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HENGYUE HARDWARE TECH CO LTD
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-17
AI Technical Summary
The pickling process in traditional bolt production suffers from low production efficiency, significant safety hazards, uneven cleaning, and low automation.
The system employs a combination of electric push rods and gear transmission to achieve automated lifting, rotation, and transfer of the mesh frame between the pickling and ultrasonic cleaning chambers. Combined with an inclined mesh base plate and snap-fit structure, it enables rapid unloading, reducing manual labor intensity and safety hazards.
It has achieved automation and efficient cleaning of the bolt pickling process, improved production efficiency, reduced safety risks, and avoided problems such as uneven cleaning and material leakage.
Smart Images

Figure CN224133183U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bolt production technology, and specifically discloses an acid pickling device for bolt production. Background Technology
[0002] In the bolt manufacturing process, pickling is an important step in removing the surface oxide layer. Pickling is used to remove the oxide film on the metal material, and at the same time, a thin film of phosphate is formed on the surface of the metal. Pickling is like giving the metal surface a new coat, and a necessary new coat at that.
[0003] Traditional pickling equipment typically operates manually, requiring a large number of bolts to be directly poured into the pickling tank for immersion. After pickling, they must be manually retrieved and transferred to a clean water tank for secondary cleaning. This method has significant drawbacks: First, the repeated manual retrieval and transfer of bolts consumes a lot of time and energy, resulting in low production efficiency. Second, direct contact between operators and the pickling solution poses a safety hazard, easily causing chemical burns. Third, loose bolts tend to accumulate in the pickling tank, leading to uneven cleaning and the risk of omissions during retrieval. Although some improved solutions use a basket structure to hold the bolts, manual operation is still required to transfer the basket between different tanks, failing to achieve automated connection of the cleaning process. Furthermore, the basket still needs to be tilted at the final discharge stage, posing a risk of material spillage. Utility Model Content
[0004] This utility model proposes an acid pickling device for bolt production. It achieves automated lifting, rotating and transferring of the mesh frame between the acid pickling and ultrasonic cleaning chambers through a combination of electric push rod and gear transmission. The tiltable mesh bottom plate, combined with buckles, enables rapid unloading, reducing manual operation intensity and safety hazards.
[0005] This utility model is implemented as follows: a pickling device for bolt production includes a plate, a pickling tank and an ultrasonic cleaning tank respectively fixedly connected to the left and right sides of the upper end face of the plate.
[0006] The material-supporting assembly includes a mesh frame located directly above the pickling tank. A bottom plate is rotatably connected to one side of the bottom of the mesh frame via a hinge. Multiple clamping plates are provided on both the left and right sides of the other side of the bottom of the mesh frame. The multiple clamping plates are rotatably connected to the bottom of the mesh frame via pins. A right-angle plate is fixedly connected to the side wall of the mesh frame, and the horizontal section of the right-angle plate is located above the mesh frame.
[0007] The transfer mechanism includes an electric push rod installed at the center of the upper surface of the plate. The output end of the electric push rod is fixedly connected to a mounting plate. A guide post is fixedly connected to the upper surface of the mounting plate. A bushing is rotatably connected to the outer wall of the guide post. A connecting rod is fixedly connected to the outer wall of the bushing. The other end of the connecting rod is fixedly connected to the horizontal section of the right-angle plate.
[0008] As a preferred embodiment of the pickling device for bolt production according to this utility model, the transfer mechanism further includes a first motor mounted on the upper surface of the mounting plate, the output end of the first motor is fixedly connected to a drive gear, and the upper surface of the bushing is fixedly connected to a driven gear sleeved on the outer wall of the guide post, wherein the driven gear and the drive gear are meshed together.
[0009] As a preferred embodiment of the pickling device for bolt production according to this utility model, a stirring assembly is installed inside the mesh frame. The stirring assembly includes a rotating shaft rotatably connected to the lower part of the horizontal section of the right-angle plate. The other end of the rotating shaft extends to the inner side of the mesh frame and a plurality of evenly distributed stirring rods are fixedly connected to the outer wall. A second motor for driving the rotating shaft to rotate is installed on the upper end face of the horizontal section of the right-angle plate.
[0010] As a preferred embodiment of the pickling device for bolt production according to this utility model, two telescopic columns are fixedly connected between the mounting plate and the flat plate, respectively located on the left and right sides of the electric push rod.
[0011] As a preferred embodiment of the pickling device for bolt production according to this utility model, both the pickling tank and the ultrasonic cleaning tank are connected to a drain pipe on their outer walls, and a valve is provided on the outer wall of the drain pipe.
[0012] As a preferred embodiment of the pickling device for bolt production according to this utility model, the base plate is a perforated plate.
[0013] In a preferred embodiment of the pickling device for bolt production according to this utility model, the ultrasonic cleaning box, electric push rod, first motor and second motor are all electrically connected to an external control system.
[0014] The beneficial effects of this utility model are:
[0015] This invention achieves automated lifting, rotating, and transferring of the mesh frame between the pickling and ultrasonic cleaning chambers through a combination of electric push rods and gear transmission. An integrated stirring component enhances cleaning uniformity, and a tiltable mesh base plate with buckles enables rapid unloading, reducing manual labor intensity and safety hazards. The dual-chamber integrated layout and linkage control shorten process connection time and improve cleaning efficiency, while avoiding material residue problems caused by traditional bulk cleaning. The structure is compact and the operation is smooth, meeting the continuous operation requirements of bolt batch production. Attached Figure Description
[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0017] Figure 1 This is the overall main view of the present invention;
[0018] Figure 2 This is an enlarged structural diagram of part a of this utility model;
[0019] Figure 3 This is a side view of the open state of the base plate of the wire mesh frame of this utility model;
[0020] Figure 4 This is a three-dimensional structural diagram of the card plate of this utility model;
[0021] Figure 5 This is a three-dimensional structural diagram of the stirring mechanism of this utility model.
[0022] The markings in the diagram are: 1. Flat plate; 2. Pickling tank; 3. Ultrasonic cleaning tank; 4. Mesh frame; 5. Base plate; 6. Pin; 7. Clamping plate; 8. Electric push rod; 9. Mounting plate; 10. Guide post; 11. Bushing; 12. Connecting rod; 13. Right angle plate; 14. First motor; 15. Drive gear; 16. Second motor; 17. Rotating shaft; 18. Stirring rod; 19. Telescopic column; 20. Drain pipe; 21. Driven gear. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.
[0024] Please see Figure 1-5 A pickling device for bolt production includes a plate 1, a pickling tank 2 and an ultrasonic cleaning tank 3, which are respectively fixedly connected to the left and right sides of the upper end face of the plate 1.
[0025] The material support assembly includes a mesh frame 4 located directly above the pickling tank 2. A bottom plate 5 is rotatably connected to one side of the bottom of the mesh frame 4 via a hinge. Multiple clamping plates 7 are provided on both the left and right sides of the other side of the bottom of the mesh frame 4. The multiple clamping plates 7 are rotatably connected to the bottom of the mesh frame 4 via pins 6. A right-angle plate 13 is fixedly connected to the side wall of the mesh frame 4. The horizontal section of the right-angle plate 13 is located above the mesh frame 4.
[0026] The transfer mechanism includes an electric push rod 8 installed at the center of the upper surface of the plate 1. The output end of the electric push rod 8 is fixedly connected to a mounting plate 9. The upper surface of the mounting plate 9 is fixedly connected to a guide post 10. The outer wall of the guide post 10 is rotatably connected to a bushing 11. The outer wall of the bushing 11 is fixedly connected to a connecting rod 12. The other end of the connecting rod 12 is fixedly connected to the horizontal section of the right-angle plate 13.
[0027] In this embodiment: the electric push rod 8 drives the mounting plate 9 to rise and fall, which in turn drives the guide column 10 and the connecting rod 12 on the bushing 11 to control the vertical movement of the mesh frame 4, so that the bolts move upward after the pickling tank 2 has completed pickling. The first motor 14 meshes with the driven gear 21 through the drive gear 15, driving the bushing 11 to rotate 180°, transferring the mesh frame 4 to the top of the ultrasonic cleaning tank 3. Then, the electric push rod 8 descends to perform ultrasonic cleaning, realizing automatic conversion between pickling and rinsing. The second motor 16 drives the rotating shaft 17 to drive the stirring rod 18 to stir the bolts, improving the uniformity of cleaning. After cleaning, the clamping plate 7 is released from the bottom plate 5, and the mesh bottom plate 5 is tilted to concentrate the bolts for unloading, avoiding manual retrieval and omission. At the same time, the telescopic column 19 enhances the stability of lifting and lowering, and the drain pipe 20 facilitates the discharge of waste liquid. The entire process is operated in conjunction with the control system, reducing manual intervention.
[0028] As a technical optimization of this utility model, the transfer mechanism also includes a first motor 14 installed on the upper end face of the mounting plate 9. The output end of the first motor 14 is fixedly connected to a drive gear 15, and the upper end face of the bushing 11 is fixedly connected to a driven gear 21 sleeved on the outer wall of the guide post 10. The driven gear 21 and the drive gear 15 are meshed together.
[0029] In this embodiment: the first motor 14 drives the active gear 15 to mesh with the driven gear 21, thereby driving the bushing 11 and the mesh frame 4 to rotate precisely 180°, realizing the automation of the workstation switching between the pickling tank and the ultrasonic cleaning tank, avoiding manual transfer errors and improving positioning reliability.
[0030] As a technical optimization of this utility model, a stirring assembly is installed inside the mesh frame 4. The stirring assembly includes a rotating shaft 17 rotatably connected to the lower part of the horizontal section of the right angle plate 13. The other end of the rotating shaft 17 extends to the inner side of the mesh frame 4 and a plurality of evenly distributed stirring rods 18 are fixedly connected to the outer wall. A second motor 16 for driving the rotating shaft 17 to rotate is installed on the upper end surface of the horizontal section of the right angle plate 13.
[0031] In this embodiment: the second motor 16 drives the rotating shaft 17 to drive the stirring rod 18 to stir the bolts inside the mesh frame 4, breaking the static contact between the pickling solution and the surface of the bolts, accelerating the peeling of the oxide layer, and preventing the cleaning dead corners caused by the accumulation of bolts, thereby improving the pickling efficiency and uniformity.
[0032] As a technical optimization of this utility model, two telescopic columns 19 are fixedly connected between the mounting plate 9 and the flat plate 1, which are located on the left and right sides of the electric push rod 8 respectively.
[0033] In this embodiment, the telescopic column 19 and the electric push rod 8 are arranged in parallel to provide dual guiding support during the lifting and lowering of the mesh frame 4, suppressing the swaying or offset of the mesh frame, ensuring the stability of the lifting trajectory, and avoiding liquid splashing or mechanical interference caused by shaking.
[0034] As a technical optimization of this utility model, the outer walls of both the pickling tank 2 and the ultrasonic cleaning tank 3 are connected to drain pipes 20, and valves are provided on the outer walls of the drain pipes 20.
[0035] In this embodiment, the bottom of the pickling tank 2 and the ultrasonic cleaning tank 3 is equipped with a drain pipe 20 with a valve, which facilitates the centralized discharge of pickling waste liquid and cleaning wastewater and the cleaning and maintenance of the tank, reduces downtime for liquid replacement, and ensures continuous operation efficiency.
[0036] As a technical optimization of this utility model, the base plate 5 is a perforated plate.
[0037] In this embodiment: the base plate 5 adopts a perforated plate structure, allowing liquid to freely permeate during pickling and cleaning. During unloading, the bolts slide down in an orderly manner with the gaps in the mesh when tilted, avoiding the problems of poor unloading or jamming of traditional solid base plates, thus achieving efficient and non-destructive material discharge.
[0038] As a technical optimization of this utility model, the ultrasonic cleaning box 3, the electric push rod 8, the first motor 14 and the second motor 16 are all electrically connected to the external control system.
[0039] In this embodiment, the electric push rod 8, the first motor 14, the second motor 16, and the ultrasonic cleaning box 3 are centrally controlled by the control system to achieve sequential coordination of lifting, rotation, stirring, and cleaning processes, reduce the risk of human error, and ensure precise process connection and controllable operation.
[0040] The working principle and usage process of this utility model are as follows: During use, the electric push rod 8 drives the mounting plate 9 to rise and fall, which in turn drives the guide column 10 and the connecting rod 12 on the bushing 11 to control the vertical movement of the mesh frame 4. This allows the bolts to move upward after the pickling tank 2 has completed pickling. The first motor 14 meshes with the driven gear 21 through the active gear 15, driving the bushing 11 to rotate 180° and transfer the mesh frame 4 to the top of the ultrasonic cleaning tank 3. Then, the electric push rod 8 descends to perform ultrasonic cleaning, realizing automatic switching between pickling and rinsing. The second motor 16 drives the rotating shaft 17 to drive the stirring rod 18 to stir the bolts, improving the uniformity of cleaning. After cleaning, the clamping plate 7 is released from the bottom plate 5, and the mesh bottom plate 5 is tilted to concentrate the bolts for unloading, avoiding manual retrieval and omission. At the same time, the telescopic column 19 enhances the stability of lifting and lowering, and the drain pipe 20 facilitates the discharge of waste liquid. The entire process is operated in conjunction with the control system, reducing manual intervention.
[0041] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0042] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.
Claims
1. An acid pickling device for bolt production, characterized by: It includes a flat plate (1), an acid pickling tank (2) and an ultrasonic cleaning tank (3) which are respectively fixedly connected to the left and right sides of the upper end face of the flat plate (1); The material support assembly includes a mesh frame (4) located directly above the pickling tank (2). A bottom plate (5) is rotatably connected to one side of the bottom end of the mesh frame (4) via a hinge. Multiple clamping plates (7) are provided on both the left and right sides of the other side of the bottom end of the mesh frame (4). The multiple clamping plates (7) are rotatably connected to the bottom of the mesh frame (4) via pins (6). A right-angle plate (13) is fixedly connected to the side wall of the mesh frame (4). The horizontal section of the right-angle plate (13) is located above the mesh frame (4). The transfer mechanism includes an electric push rod (8) installed at the center of the upper surface of the plate (1). The output end of the electric push rod (8) is fixedly connected to a mounting plate (9). The upper surface of the mounting plate (9) is fixedly connected to a guide post (10). The outer wall of the guide post (10) is rotatably connected to a bushing (11). The outer wall of the bushing (11) is fixedly connected to a connecting rod (12). The other end of the connecting rod (12) is fixedly connected to the horizontal section of the right-angle plate (13).
2. The pickling device for bolt production according to claim 1, characterized in that: The transfer mechanism also includes a first motor (14) mounted on the upper end of the mounting plate (9). The output end of the first motor (14) is fixedly connected to a drive gear (15). The upper end of the bushing (11) is fixedly connected to a driven gear (21) sleeved on the outer wall of the guide post (10). The driven gear (21) and the drive gear (15) are meshed together.
3. The pickling device for bolt production according to claim 2, characterized in that: The mesh frame (4) is equipped with a stirring assembly, which includes a rotating shaft (17) rotatably connected to the lower horizontal section of the right-angle plate (13). The other end of the rotating shaft (17) extends to the inner side of the mesh frame (4) and a plurality of evenly distributed stirring rods (18) are fixedly connected to the outer wall. A second motor (16) for driving the rotating shaft (17) to rotate is installed on the upper surface of the horizontal section of the right-angle plate (13).
4. The pickling device for bolt production according to claim 1, characterized in that: Two telescopic columns (19) are fixedly connected between the mounting plate (9) and the flat plate (1), located on the left and right sides of the electric push rod (8).
5. The pickling device for bolt production according to claim 1, characterized in that: The outer walls of both the pickling tank (2) and the ultrasonic cleaning tank (3) are connected to drain pipes (20), and valves are provided on the outer walls of the drain pipes (20).
6. The pickling apparatus for bolt production according to claim 1, characterized in that: The base plate (5) is a perforated plate.
7. The pickling device for bolt production according to claim 3, characterized in that: The ultrasonic cleaning box (3), electric push rod (8), first motor (14) and second motor (16) are all electrically connected to the external control system.