Composite buffering device for steel pipe production line

By using a composite buffer device consisting of a fixed plate, a movable baffle, and a three-stage buffer component on the steel pipe production line, the problems of steel pipe stopping position deviation and baffle impact were solved, achieving reliable stopping of the steel pipe and improving equipment stability.

CN224257647UActive Publication Date: 2026-05-19BAOTOU IRON & STEEL (GROUP) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BAOTOU IRON & STEEL (GROUP) CO LTD
Filing Date
2025-06-16
Publication Date
2026-05-19

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Abstract

The utility model discloses a composite buffer device for a steel pipe production line, which relates to the technical field of steel production equipment and comprises a fixed plate, a movable baffle, a first buffer part, a second buffer part and a third buffer part. The movable baffle is used for receiving the impact of the steel pipe and limiting the steel pipe to a set position; the first buffering piece is arranged between the fixed plate and the movable baffle so as to provide first-stage buffering after the steel pipe collides with the movable baffle and can drive the movable baffle to reset to the set position. The second buffer piece is arranged between the fixed plate and the movable baffle so as to provide second-stage buffer for the movable baffle when the movable baffle moves to a first preset stroke; the third buffering piece is arranged between the fixed plate and the movable baffle so as to provide third-level buffering for the movable baffle when the movable baffle moves to the second preset stroke, the structure is simple, use is convenient, and it is effectively guaranteed that the steel pipe can be reliably stopped in the production process.
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Description

Technical Field

[0001] This utility model relates to the field of steel production equipment technology, and in particular to a composite buffer device for a steel pipe production line. Background Technology

[0002] In steel pipe and other steel product production lines, the transfer of steel pipes and other products is frequently involved. Especially in the transfer of rows of steel pipes, it is often necessary to stop the pipes transported via roller conveyors. Currently, the main methods for stopping steel pipes have significant drawbacks. Relying on electrical sensors to control the roller conveyor's stop position can lead to deviations in the pipe's stopping position, failing to meet the precise positioning requirements of subsequent processing. While using fixed baffles to stop the pipes results in significant impacts from the pipes against the baffles, affecting equipment stability and shortening the baffles' lifespan. Frequent baffle replacements increase production costs and reduce efficiency. Therefore, there is an urgent need for a device that can effectively solve these problems, achieving reliable pipe stopping while minimizing impact on the equipment. Utility Model Content

[0003] The purpose of this utility model is to provide a composite buffer device for a steel pipe production line to solve the problems existing in the prior art. It has a simple structure, is easy to use, effectively ensures that the steel pipe can be reliably stopped during the production process, and at the same time reduces the impact of the steel pipe on the baffle, extends the service life of the baffle, and improves the stability of the equipment and production efficiency.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] This utility model provides a composite buffer device for a steel pipe production line, comprising: a fixed plate, a movable baffle, a first buffer component, a second buffer component, and a third buffer component. The fixed plate is installed at the end of the steel pipe conveyor roller where the steel pipe needs to be stopped. The movable baffle is arranged parallel to the fixed plate and is positioned on the side of the fixed plate near the steel pipe conveyor roller to receive the impact of the steel pipe and confine the steel pipe to a set position. The first buffer component is arranged between the fixed plate and the movable baffle to provide a first-level buffer after the steel pipe impacts the movable baffle and to drive the movable baffle to return to the set position. The second buffer component is arranged between the fixed plate and the movable baffle to provide a second-level buffer when the movable baffle moves to a first preset stroke. The third buffer component is arranged between the fixed plate and the movable baffle to provide a third-level buffer when the movable baffle moves to a second preset stroke.

[0006] Preferably, the first buffer includes a plurality of springs, the two ends of which are fixedly connected to the fixed plate and the movable baffle, respectively.

[0007] Preferably, each of the springs is arranged symmetrically in pairs between the fixed plate and the movable baffle.

[0008] Preferably, the second buffer includes a plurality of hydraulic buffers, the fixed end of the hydraulic buffer is vertically fixedly connected to the fixed plate, and the buffer end of the hydraulic buffer is located at the position of the first preset stroke so as to contact the movable baffle and provide a second level of buffer when the movable baffle moves to the first preset stroke.

[0009] Preferably, each of the hydraulic buffers is arranged symmetrically in pairs between the fixed plate and the movable baffle.

[0010] Preferably, the third buffer includes a first magnet and a second magnet. The first magnet is fixedly connected to the middle of the fixed plate on the side facing the movable baffle, and the second magnet is fixedly connected to the middle of the movable baffle on the side facing the fixed plate. When the movable baffle moves to the second preset stroke, the first magnet and the second magnet repel each other and provide a third level of buffering.

[0011] Preferably, both the first magnet and the second magnet are electromagnets, and the first magnet and the second magnet have the same polarity in the opposite direction.

[0012] Preferably, the movable baffle is made of steel plate with a thickness of 105-115mm.

[0013] Preferably, the fixing plate is made of steel plate with a thickness of 85-95mm.

[0014] The present invention achieves the following technical advantages over the prior art:

[0015] This utility model provides a composite buffer device for a steel pipe production line. The fixed plate installation position determines the positioning of the buffer device on the production line, and the movable baffle position is set so that it can accurately receive the impact of the steel pipe and position the steel pipe. Three-stage buffer components are arranged sequentially between the fixed plate and the movable baffle to form a buffer system, ensuring effective buffering under different impact forces, guaranteeing the buffering effect of the steel pipe stopping, and improving the stability and reliability of the production line equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1A schematic diagram of the composite buffer device for a steel pipe production line provided by this utility model;

[0018] In the diagram: 1. Steel pipe; 2. Movable baffle; 3. Spring; 4. Fixed plate; 5. First magnet; 6. Hydraulic buffer; 7. Second magnet; 8. Roller conveyor. Detailed Implementation

[0019] 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.

[0020] The purpose of this utility model is to provide a composite buffer device for a steel pipe production line to solve the problems existing in the prior art. It has a simple structure, is easy to use, effectively ensures that the steel pipe can be reliably stopped during the production process, and at the same time reduces the impact of the steel pipe on the baffle, extends the service life of the baffle, and improves the stability of the equipment and production efficiency.

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] This utility model provides a composite buffer device for a steel pipe production line, such as... Figure 1 As shown, the system includes: a fixed plate 4, a movable baffle 2, a first buffer, a second buffer, and a third buffer. The fixed plate 4 is installed at the end of the steel pipe 1 conveyor roller 8 where the steel pipe 1 needs to be stopped. The movable baffle 2 is arranged parallel to the fixed plate 4 and is located on the side of the fixed plate 4 near the steel pipe 1 conveyor roller 8 to receive the impact of the steel pipe 1 and confine the steel pipe 1 to a set position. The first buffer is arranged between the fixed plate 4 and the movable baffle 2 to provide the first-level buffer after the steel pipe 1 impacts the movable baffle 2 and can drive the movable baffle 2 to return to the set position. The second buffer is arranged between the fixed plate 4 and the movable baffle 2 to provide the first-level buffer after the steel pipe 1 impacts the movable baffle 2 and can drive the movable baffle 2 to return to the set position. When baffle 2 moves to the first preset stroke, it provides a second level of buffer for movable baffle 2; a third buffer is arranged between fixed plate 4 and movable baffle 2 to provide a third level of buffer for movable baffle 2 when it moves to the second preset stroke. The installation position of fixed plate 4 determines the positioning of the buffer device on the production line. The position setting of movable baffle 2 enables it to accurately receive the impact of steel pipe 1 and position steel pipe 1. The three levels of buffer are arranged in sequence between fixed plate 4 and movable baffle 2 to form a buffer system, ensuring effective buffering under different impact forces, guaranteeing the buffering effect of stopping steel pipe 1, and improving the stability and reliability of production line equipment.

[0023] In a preferred embodiment, the first buffer includes multiple springs 3, with both ends of the springs 3 fixedly connected to the fixed plate 4 and the movable baffle 2, respectively. As the first buffer, the multiple springs 3 absorb the impact energy when the steel pipe 1 impacts the movable baffle 2 using their elastic deformation, providing a first-level buffer for both the movable baffle 2 and the steel pipe 1. The fixed connections of the two ends of the springs 3 to the fixed plate 4 and the movable baffle 2 ensure the stability of the connection, allowing the springs 3 to function properly and to reset the movable baffle 2 after the buffering process, preparing for the next stop of the steel pipe 1 and helping to maintain the continuous and stable operation of the production line.

[0024] In a preferred embodiment, each spring 3 is arranged symmetrically in pairs between the fixed plate 4 and the movable baffle 2. The symmetrical arrangement of the springs 3 in pairs ensures that when the movable baffle 2 is hit by the steel pipe 1, the springs 3 on both sides can evenly distribute the impact force, avoiding uneven force on one side. This ensures that the movable baffle 2 is balanced by force, can move backward more stably for buffering, and can return to the set position more accurately during the reset process. This further improves the stability and reliability of the buffering and helps to improve the accuracy of the device in stopping the steel pipe 1.

[0025] In a preferred embodiment, the spring 3 is a heavy-duty spring 3, which ensures that there is a vertical relative displacement between the movable baffle 2 and the fixed plate 4, or a guide rod is provided between the fixed plate 4 and the movable baffle 2 to avoid vertical relative displacement between the movable baffle 2 and the fixed plate 4.

[0026] In a preferred embodiment, the second buffer includes multiple hydraulic buffers 6. The fixed ends of the hydraulic buffers 6 are vertically fixedly connected to the fixed plate 4. The buffer ends of the hydraulic buffers 6 are located at a first preset stroke position so as to contact the movable baffle 2 when it moves to the first preset stroke and provide a second level of buffering. The multiple hydraulic buffers 6, as the second buffer, intervene when the movable baffle 2 moves to the first preset stroke, and further absorb the impact energy by utilizing the damping effect of hydraulic oil. The vertical fixed connection between the fixed ends of the hydraulic buffers 6 and the fixed plate 4 ensures the stability of the installation and the robustness of the structure. The buffer ends are located at a specific position so as to accurately contact the movable baffle 2, providing an effective second level of buffering when the spring 3 is insufficient, thereby improving the device's ability to cope with larger impact forces and enhancing the overall performance of the buffer device.

[0027] In a preferred embodiment, each hydraulic buffer 6 is arranged symmetrically in pairs between the fixed plate 4 and the movable baffle 2. The symmetrical arrangement of the hydraulic buffers 6 in pairs is similar to the symmetrical arrangement of the springs 3. This allows the hydraulic buffers 6 on both sides to be evenly stressed when the movable baffle 2 moves to the second buffering stage under a large impact force. This ensures that the movable baffle 2 remains in force balance, guarantees the stability of the buffering process, better copes with high-intensity impacts, and further improves the reliability and durability of the buffering device.

[0028] In a preferred embodiment, the third buffer includes a first magnet 5 and a second magnet 7. The first magnet 5 is fixedly connected to the center of the fixed plate 4 facing the movable baffle 2, and the second magnet 7 is fixedly connected to the center of the movable baffle 2 facing the fixed plate 4. When the movable baffle 2 moves to the second preset stroke, the first magnet 5 and the second magnet 7 repel each other and provide a third level of buffering. By setting the first magnet 5 and the second magnet 7 as the third buffer, when the movable baffle 2 moves to the second preset stroke, that is, when the buffering of the spring 3 and the hydraulic buffer 6 is still insufficient, the repulsive force between the magnets provides a third level of buffering. The two are fixed to the center of the fixed plate 4 and the movable baffle 2 respectively, which can ensure that the repulsive force acts on the center position of the movable baffle 2, more effectively reducing the displacement speed of the movable baffle 2, absorbing the remaining impact energy, greatly improving the device's ability to cope with extremely strong impact forces, and ensuring that the steel pipe 1 cutting process can be carried out stably under various working conditions.

[0029] In a preferred embodiment, both the first magnet 5 and the second magnet 7 are electromagnets, and the polarities of the first magnet 5 and the second magnet 7 are the same in the opposite direction. Using electromagnets with the same polarity in the opposite direction allows for flexible adjustment of the repulsive force between the magnets by controlling the energization of the electromagnets. This adapts to the impact conditions of steel pipes 1 of different specifications under different production conditions, making the device more adaptable and adjustable. Furthermore, during the buffering process, the repulsive force gradually increases as the movable baffle 2 approaches, allowing for more precise control of the buffering effect and further improving the performance and practicality of the device.

[0030] In a preferred embodiment, the movable baffle 2 is made of steel plate with a thickness of 105-115mm. Using steel plate within this thickness range ensures that the movable baffle 2 has sufficient strength and rigidity to withstand the impact of the steel pipe 1, preventing deformation or damage under frequent impacts. The suitable thickness range also allows the movable baffle 2 to better transmit and disperse impact force during the buffering process, assisting the various buffer components in their function, extending the service life of the movable baffle 2, and ensuring the long-term stable operation of the entire buffer device.

[0031] In a preferred embodiment, the fixing plate 4 is made of steel plate with a thickness of 85-95mm. Using steel plate within this thickness range provides stable support for each buffer component. Sufficient thickness ensures that the fixing plate 4 will not deform or shift when subjected to various forces during the buffering process, guaranteeing the structural stability of the entire device. The stable fixing plate 4 helps ensure the normal working position and state of components such as the spring 3, hydraulic buffer 6, and electromagnet, thereby ensuring the stable and reliable buffering performance of the entire composite buffer device.

[0032] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A composite buffer device for a steel pipe production line, characterized in that: include: A fixing plate is installed at the end of the steel pipe conveyor roller where the steel pipe needs to be stopped; A movable baffle is provided, which is parallel to the fixed plate and is located on the side of the fixed plate near the steel pipe conveyor roller to receive the impact of the steel pipe and limit the steel pipe to a set position. A first buffer is arranged between the fixed plate and the movable baffle to provide a first-level buffer after the steel pipe hits the movable baffle and to drive the movable baffle to return to a set position. A second buffer is disposed between the fixed plate and the movable baffle to provide a second level of buffering for the movable baffle when the movable baffle moves to the first preset stroke. as well as A third buffer is disposed between the fixed plate and the movable baffle to provide a third level of buffering for the movable baffle when the movable baffle moves to the second preset stroke.

2. The composite buffer device for a steel pipe production line according to claim 1, characterized in that: The first buffer includes multiple springs, with both ends of each spring fixedly connected to the fixed plate and the movable baffle, respectively.

3. The composite buffer device for steel pipe production lines according to claim 2, characterized in that: Each of the springs is arranged in pairs symmetrically between the fixed plate and the movable baffle.

4. The composite buffer device for steel pipe production lines according to claim 3, characterized in that: The second buffer includes multiple hydraulic buffers. The fixed end of the hydraulic buffer is vertically fixedly connected to the fixed plate. The buffer end of the hydraulic buffer is located at the position of the first preset stroke so as to contact the movable baffle and provide a second level of buffer when the movable baffle moves to the first preset stroke.

5. The composite buffer device for steel pipe production lines according to claim 4, characterized in that: Each of the hydraulic buffers is arranged symmetrically in pairs between the fixed plate and the movable baffle.

6. The composite buffer device for a steel pipe production line according to claim 5, characterized in that: The third buffer includes a first magnet and a second magnet. The first magnet is fixedly connected to the middle of the fixed plate on the side facing the movable baffle, and the second magnet is fixedly connected to the middle of the movable baffle on the side facing the fixed plate. When the movable baffle moves to the second preset stroke, the first magnet and the second magnet repel each other and provide a third level of buffering.

7. The composite buffer device for a steel pipe production line according to claim 6, characterized in that: Both the first magnet and the second magnet are electromagnets, and the first magnet and the second magnet have the same polarity in the opposite direction.

8. The composite buffer device for a steel pipe production line according to claim 1, characterized in that: The movable baffle is made of steel plate with a thickness of 105-115mm.

9. The composite buffer device for a steel pipe production line according to claim 1, characterized in that: The fixing plate is made of steel plate with a thickness of 85-95mm.