A pickling apparatus for stainless steel seamless pipes
The automated stainless steel seamless pipe pickling device solves the problems of uneven pickling and poor equipment adaptability in traditional pickling operations, achieving uniformity of steel pipe pickling and equipment versatility, reducing costs and improving processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN HUACHANG STAINLESS STEEL PIPE CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional stainless steel seamless pipe pickling operations rely on manual operation, resulting in uneven pickling. Furthermore, traditional clamping devices are difficult to adapt to steel pipes of different specifications, increasing equipment procurement costs and floor space requirements.
A pickling device for seamless stainless steel pipes was designed. It adopts an electric push rod, clamping assembly and an automated control system to realize the automated clamping, pickling and drying of steel pipes. It can adapt to steel pipes of different lengths and reduce manual intervention.
This achieves uniformity in the pickling quality of steel pipes and versatility of equipment, reduces equipment costs, improves processing efficiency and ease of operation, and avoids damage to steel pipes.
Smart Images

Figure CN224531051U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel pipe processing technology, and in particular to a pickling device for seamless stainless steel pipes. Background Technology
[0002] In the field of steel pipe processing technology, pickling is a key step in ensuring the quality and performance of stainless steel seamless pipes.
[0003] Traditional stainless steel seamless pipe pickling operations rely heavily on manual labor. Manual operation makes it difficult to ensure that the position and angle of the pipe are consistently correct each time, resulting in uneven pickling levels and inconsistent pickling quality across different parts of the pipe. Furthermore, the clamping components used in traditional pickling operations are not flexible enough to accommodate pipes of various lengths. For pipes of different specifications, it is often necessary to match pickling tanks and clamping devices of specific sizes, significantly increasing equipment procurement costs and workshop floor space. Therefore, we propose a stainless steel seamless pipe pickling device to solve this problem. Utility Model Content
[0004] The purpose of this invention is to provide a pickling device for seamless stainless steel pipes to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A stainless steel seamless pipe pickling device includes: multiple sets of pipe bodies and a washing and drying oven. The bottom inner wall of the washing and drying oven is equipped with a pickling tank and a draining tank. A draining frame is slidably installed inside the washing and drying oven. An electric push rod is fixedly installed on the top of the washing and drying oven. A clamping assembly is provided on the output end of the electric push rod. The clamping assembly includes: a connecting seat, two sets of movable frames, and multiple sets of clamps. Two sets of movable frames are slidably installed on the bottom of the connecting seat. The two sets of movable frames are threadedly connected to the outside of a bidirectional lead screw. Two sets of screws are rotatably installed inside each of the two sets of movable frames. One end of each of the four sets of screws is fixedly equipped with a transmission gear. Multiple sets of moving plates one and multiple sets of moving plates two are slidably installed inside the two sets of moving frames. Multiple sets of clamps are fixedly installed on one side of the corresponding moving plates one and two. The two ends of the multiple sets of steel pipe bodies are respectively set between the corresponding two sets of clamps. A frame is fixedly installed on the top inner wall of the washing and drying oven. An installation plate is fixedly installed inside the frame. Two sets of rotating rods are rotatably installed inside the two sets of installation plates. A fan is fixedly installed at the bottom of each set of rotating rods. A heating plate is provided at the bottom of the frame.
[0006] Preferably, the connecting seat is fixedly installed on the output end of the second electric push rod. Two sets of lifting rods are provided between the connecting seat and the top inner wall of the washing and drying oven. A rotating shaft is rotatably installed inside the frame. Two sets of first bevel gears are fixedly installed on the outside of the rotating shaft. The top of each of the two sets of rotating rods is fixedly installed with a second bevel gear. An air intake grille is provided on the top of the washing and drying oven. A horizontal plate is fixedly installed inside the washing and drying oven. A drive motor is fixedly installed on one side of the frame. One end of the rotating shaft is fixedly installed on the output end of the drive motor. An electric push rod is fixedly installed on one side of the horizontal plate. One side of the drain frame is fixedly installed on the output end of the first electric push rod.
[0007] Preferably, the clamping assembly further includes: a first motor and two sets of second motors, the first motor being fixedly installed on one side of the connecting seat, the two sets of second motors being fixedly installed on one side of the corresponding moving frame, one end of the bidirectional lead screw being fixedly installed on the output end of the first motor, and one end of each of the two sets of screws located above being fixedly installed on one side of the corresponding second motor.
[0008] Preferably, the two adjacent sets of transmission gears mesh with each other, and multiple sets of movable plates are threadedly connected to the outside of the two corresponding sets of screws located above, and slidably installed on the outside of the corresponding sets of screws located below, and multiple sets of movable plates are threadedly connected to the outside of the two corresponding sets of screws located below.
[0009] Preferably, the two sets of bevel gears one mesh with the corresponding bevel gear two, and the two sets of fans are arranged on the top of the heating plate.
[0010] Preferably, a sliding groove is provided on the inner wall of the washing and drying oven, and the drain frame is slidably installed in the sliding groove, with the drain frame sliding above the drain box and the pickling box.
[0011] In this utility model, a stainless steel seamless pipe pickling device is provided, which uses an electric push rod to drive the draining frame to descend in the chute and move the draining frame to the top of the draining box or pickling box, so as to facilitate the subsequent collection and treatment of the drained liquid and the drying treatment of the steel pipe body. In this utility model, a stainless steel seamless pipe pickling device is provided. By setting up a drive motor and a heating plate, the drive motor drives the rotating shaft to rotate and two sets of bevel gears to rotate. Since the first bevel gear meshes with the corresponding second bevel gear, the two sets of second bevel gears drive the rotating rod to rotate. The fan at the bottom of the rotating rod starts to rotate, and works with the heating plate to generate heat. The fan blows the heat generated by the heating plate onto the steel pipe body to dry the steel pipe body. During the drying process, the air inlet grille at the top of the washing and drying box ensures the internal air circulation, which greatly shortens the drying time of the steel pipe and significantly improves the overall processing efficiency. It is especially suitable for production scenarios that process steel pipes in batches. This utility model has a reasonable structural design. By setting up a motor and a double-acting lead screw, two sets of moving frames slide relative to each other at the bottom of the connecting seat, driving the bottom moving plate 1, moving plate 2, and clamp to move, thereby adjusting the spacing to accommodate steel pipe bodies of different lengths. Then, through the cooperation of motor 2, the screw, transmission gear, moving plate 1, moving plate 2, and clamp, the steel pipe body is clamped and released. An electric push rod 2 pushes the connecting seat to move up and down under the constraint of the lifting rod, driving the clamp holding the steel pipe body to move up and down, thus allowing the steel pipe body to be clamped and released. It can be immersed in the washing and drying oven and detached from the pickling tank. After a series of operations by the second motor, the steel pipe body is loosened and falls into the draining frame for draining. This breaks the limitation of traditional devices on the length of steel pipes, allowing the same device to process various specifications of stainless steel seamless pipes. This greatly enhances the versatility of the device, eliminating the need for special equipment for steel pipes of different lengths, reducing equipment investment costs. It not only saves manpower but also ensures the uniformity of clamping force, avoiding problems such as damage to steel pipes or insecure clamping due to improper manual operation, making operation more convenient and stable. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of a stainless steel seamless pipe pickling device proposed in this utility model; Figure 2 This is a cross-sectional structural schematic diagram of a stainless steel seamless pipe pickling device proposed in this utility model; Figure 3 for Figure 2 A magnified view of part A in the middle; Figure 4 This is a three-dimensional structural diagram of a clamping assembly for a stainless steel seamless pipe pickling device proposed in this utility model. Figure 5 This is a cross-sectional structural schematic diagram of a clamping assembly for a stainless steel seamless pipe pickling device proposed in this utility model. Figure 6 This is a partial cross-sectional view of a stainless steel seamless pipe pickling device proposed in this utility model.
[0013] In the diagram: 1. Steel pipe body; 2. Washing and drying oven; 3. Clamping assembly; 301. Connecting seat; 302. Two-way lead screw; 303. Motor 1; 304. Moving frame; 305. Screw; 306. Motor 2; 307. Transmission gear; 308. Moving plate 1; 309. Moving plate 2; 310. Fixture; 4. Pickling box; 5. Draining box; 6. Draining frame; 7. Horizontal plate; 8. Electric push rod 1; 9. Electric push rod 2; 10. Lifting rod; 11. Frame; 12. Heating plate; 13. Rotating shaft; 14. Bevel gear 1; 15. Mounting plate; 16. Rotating rod; 17. Bevel gear 2; 18. Fan; 19. Drive motor. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0015] Reference Figure 1-6 A stainless steel seamless pipe pickling device includes: multiple sets of pipe bodies 1 and a washing and drying oven 2. The bottom inner wall of the washing and drying oven 2 is equipped with a pickling tank 4 and a draining tank 5. A draining frame 6 is slidably installed inside the washing and drying oven 2. An electric push rod 9 is fixedly installed on the top of the washing and drying oven 2. A clamping assembly 3 is provided on the output end of the electric push rod 9. The clamping assembly 3 includes: a connecting seat 301, two sets of movable frames 304, and multiple sets of clamps 310. Two sets of movable frames 304 are slidably installed at the bottom of the connecting seat 301. The two sets of movable frames 304 are threadedly connected to the outside of a bidirectional lead screw 302. Two sets of screws 305 are rotatably installed inside each of the two sets of movable frames 304. Four sets of clamps are also included. One end of each screw 305 is fixedly equipped with a transmission gear 307. Multiple sets of moving plates 308 and multiple sets of moving plates 309 are slidably installed inside the two sets of moving frames 304. Multiple sets of clamps 310 are fixedly installed on one side of the corresponding moving plates 308 and 309. The two ends of the multiple sets of steel pipe bodies 1 are respectively set between the two sets of clamps 310. A frame 11 is fixedly installed on the top inner wall of the washing and drying oven 2. An installation plate 15 is fixedly installed inside the frame 11. Two sets of rotating rods 16 are rotatably installed inside the two sets of installation plates 15. A fan 18 is fixedly installed at the bottom of the two sets of rotating rods 16. A heating plate 12 is provided at the bottom of the frame 11.
[0016] In this embodiment, the connecting seat 301 is fixedly installed on the output end of the electric push rod 9. Two sets of lifting rods 10 are provided between the connecting seat 301 and the top inner wall of the washing and drying oven 2. The frame 11 is rotatably installed with a rotating shaft 13. Two sets of bevel gears 14 are fixedly installed on the outside of the rotating shaft 13. The tops of the two sets of rotating rods 16 are fixedly installed with bevel gears 17. The top of the washing and drying oven 2 is provided with an air intake grille. The washing and drying oven 2 is fixedly installed with a horizontal plate 7. The frame 11 is fixedly installed with a drive motor 19 on one side. One end of the rotating shaft 13 is fixedly installed on the output end of the drive motor 19. The horizontal plate 7 is fixedly installed with an electric push rod 8 on one side. The drain frame 6 is fixedly installed with one side on the output end of the electric push rod 8, which ensures the synchronicity and accuracy of the movement of the drain frame 6, making the draining and subsequent processing smoother.
[0017] In this embodiment, the clamping assembly 3 further includes: a first motor 303 and two sets of second motors 306. The first motor 303 is fixedly installed on one side of the connecting seat 301, and the two sets of second motors 306 are fixedly installed on one side of the corresponding moving frame 304. One end of the bidirectional lead screw 302 is fixedly installed on the output end of the first motor 303, and one end of each of the two sets of screws 305 located above is fixedly installed on one side of the corresponding second motor 306, ensuring that the clamping action of the clamp 310 is accurate and controllable.
[0018] In this embodiment, two adjacent sets of transmission gears 307 mesh with each other, and multiple sets of movable plates 308 are threadedly connected to the outside of the two corresponding sets of screws 305 located above, and are slidably installed outside the corresponding sets of screws 305 located below. Multiple sets of movable plates 309 are threadedly connected to the outside of the two corresponding sets of screws 305 located below, which ensures the accuracy and stability of the clamp 310 in clamping the steel pipe and reduces the possibility of the steel pipe falling off or being improperly clamped.
[0019] In this embodiment, two sets of bevel gears 14 mesh with the corresponding bevel gears 17, and two sets of fans 18 are set on the top of the heating plate 12, realizing efficient conversion of power direction and allowing the fans 18 to rotate stably.
[0020] In this embodiment, a sliding groove is provided on the inner wall of the washing and drying oven 2, and the drain frame 6 is slidably installed in the sliding groove. The drain frame 6 slides above the drain box 5 and the pickling box 4, ensuring that the drain frame 6 can accurately stop at the designated position, which is convenient for receiving the pickled steel pipe for draining, or moving to the top of the drain box 5 to collect liquid, making the whole process more orderly.
[0021] In this embodiment, during use, the steel pipe body 1 is first placed between adjacent clamps 310 through the window of the washing and drying oven 2. Then, the motor 303 is started to drive the bidirectional screw 302 to rotate. Since the two sets of moving frames 304 are threadedly connected to the bidirectional screw 302, the two sets of moving frames 304 will slide relative to each other at the bottom of the connecting seat 301 to adjust the spacing to accommodate steel pipe bodies 1 of different lengths. Next, the two sets of motors 306 are started to drive the upper screw 305 to rotate. Since the two sets of adjacent transmission gears 307 mesh with each other, the rotation of the upper screw 305 will drive the lower screw 305 to rotate synchronously and in the opposite direction. At this time, multiple sets of moving plates 308 move under the action of the upper screw 305, and multiple sets of moving plates 309 move under the action of the lower screw 305, so that the moving plates 308 and 309 move in opposite directions, so that the two sets of corresponding clamps 310 move closer to each other, thereby firmly clamping the multiple sets of steel pipe bodies 1. Then, the electric push rod 29 is activated to push the connecting seat 301 to descend under the restriction of the lifting rod 10, and the clamp 310 holding the steel pipe body 1 moves down accordingly, immersing the steel pipe body 1 into the pickling solution in the pickling tank 4 on the bottom inner wall of the washing and drying oven 2 for pickling treatment; after pickling, the electric push rod 29 retracts, driving the steel pipe body 1 to rise and detach from the pickling tank 4. Then, the electric push rod 18 is activated to push the drain frame 6 to slide in the groove on the inner wall of the washing and drying oven 2, so that the drain frame 6 moves to the top of the pickling tank 4. The motor 206 is activated, and the screw 305, transmission gear 307, moving plate 1 308, moving plate 2 309 and clamp 310 release the steel pipe body 1, so that the steel pipe body 1 falls into the drain frame 6 for draining. Then, the electric push rod 18 is activated to drive the drain frame 6 back to the top of the drain tank 5 for subsequent collection and treatment of the drained liquid. Then, the drive motor 19 and the heating plate 12 are started. The drive motor 19 drives the rotating shaft 13 to rotate and the two sets of bevel gears 14 to rotate. Since the bevel gears 14 mesh with the corresponding bevel gears 17, the two sets of bevel gears 17 drive the rotating rod 16 to rotate in the mounting plate 15. The fan 18 at the bottom of the rotating rod 16 starts to rotate, working with the heating plate 12 to generate heat. The fan 18 blows the heat generated by the heating plate 12 onto the steel pipe body 1 to dry the steel pipe body 1. During the drying process, the air intake grille at the top of the washing and drying oven 2 ensures the internal air circulation and improves the drying efficiency. The above provides a detailed description of the stainless steel seamless pipe pickling device provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only intended to help understand the method and core idea of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A pickling apparatus for seamless stainless steel pipes, characterized in that, include: Multiple sets of steel pipe bodies (1) and washing and drying ovens (2). The bottom inner wall of the washing and drying oven (2) is provided with a pickling tank (4) and a draining tank (5). A draining frame (6) is slidably installed inside the washing and drying oven (2). An electric push rod two (9) is fixedly installed on the top of the washing and drying oven (2). A clamping assembly (3) is provided on the output end of the electric push rod two (9). The clamping assembly (3) includes: a connecting seat (301), two sets of moving frames (304) and multiple sets of clamps (310). Two sets of moving frames (304) are slidably installed at the bottom of the connecting seat (301). The two sets of moving frames (304) are threadedly connected to the outside of a two-way screw (302). Two sets of screws (305) are rotatably installed inside each of the two sets of moving frames (304). One end of each is fixedly installed with a transmission gear (307). Multiple sets of moving plates one (308) and multiple sets of moving plates two (309) are slidably installed inside the two sets of moving frames (304). Multiple sets of clamps (310) are fixedly installed on one side of the corresponding moving plates one (308) and moving plates two (309). The two ends of the multiple sets of steel pipe bodies (1) are respectively set between the corresponding two sets of clamps (310). A frame (11) is fixedly installed on the top inner wall of the washing and drying oven (2). An installation plate (15) is fixedly installed inside the frame (11). Two sets of rotating rods (16) are rotatably installed inside the two sets of installation plates (15). A fan (18) is fixedly installed at the bottom of the two sets of rotating rods (16). A heating plate (12) is provided at the bottom of the frame (11).
2. The stainless steel seamless pipe pickling device according to claim 1, characterized in that, The connecting seat (301) is fixedly installed on the output end of the electric push rod two (9). Two sets of lifting rods (10) are provided between the connecting seat (301) and the top inner wall of the washing and drying box (2). The frame (11) is rotatably installed with a rotating shaft (13). Two sets of bevel gears one (14) are fixedly installed on the outside of the rotating shaft (13). The top of the two sets of rotating rods (16) is fixedly installed with bevel gear two (17). The top of the washing and drying box (2) is provided with an air intake grille. The washing and drying box (2) is fixedly installed with a horizontal plate (7). The frame (11) is fixedly installed with a drive motor (19) on one side. One end of the rotating shaft (13) is fixedly installed on the output end of the drive motor (19). The horizontal plate (7) is fixedly installed with an electric push rod one (8) on one side. The drain frame (6) is fixedly installed with one side on the output end of the electric push rod one (8).
3. The stainless steel seamless pipe pickling device according to claim 1, characterized in that, The clamping assembly (3) further includes: a first motor (303) and two sets of second motors (306). The first motor (303) is fixedly installed on one side of the connecting seat (301), and the two sets of second motors (306) are fixedly installed on one side of the corresponding moving frame (304). One end of the bidirectional lead screw (302) is fixedly installed on the output end of the first motor (303), and one end of each of the two sets of screws (305) located above is fixedly installed on one side of the corresponding second motor (306).
4. The stainless steel seamless pipe pickling device according to claim 1, characterized in that, The two adjacent sets of transmission gears (307) mesh with each other, and multiple sets of movable plates (308) are threadedly connected to the outside of the two corresponding sets of screws (305) located above, and are slidably installed on the outside of the corresponding screws (305) located below. Multiple sets of movable plates (309) are threadedly connected to the outside of the two corresponding sets of screws (305) located below.
5. The stainless steel seamless pipe pickling device according to claim 2, characterized in that, The two sets of bevel gears (14) mesh with the corresponding bevel gears (17), and the two sets of fans (18) are located on top of the heating plate (12).
6. The stainless steel seamless pipe pickling apparatus according to claim 1, characterized in that, The inner wall of the washing and drying oven (2) is provided with a sliding groove, and the drain frame (6) is slidably installed in the sliding groove. The drain frame (6) slides above the drain box (5) and the pickling box (4).