An automatic pipe corrosion cut-off device
By integrating conveying, clamping, cutting, and rolling automatic cutting devices, the problems of uneven pipe cutting surfaces and peeling anti-corrosion layers have been solved, realizing the automation and efficiency of pipe processing and improving processing quality and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN HAOHAIDA OCEAN ENG CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-30
AI Technical Summary
Existing technologies for pipe cutting suffer from problems such as uneven cutting surfaces, high labor intensity, low efficiency, and warping of the anti-corrosion layer at the ends, making it difficult to meet the needs of large-scale processing.
An automatic cutting device integrating conveying, clamping, cutting and edge rolling functions was designed, including a clamping mechanism, a cutting mechanism and an edge rolling mechanism. It achieves stable clamping, precise cutting and surface treatment of pipes through hydraulic drive and motor control.
It has achieved automation, precision and efficiency in pipe cutting, improved processing quality and efficiency, reduced manual labor intensity and safety hazards, and ensured the adhesion effect of the anti-corrosion layer.
Smart Images

Figure CN224424902U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pipeline cutting technology, specifically an automatic pipeline corrosion cutting device. Background Technology
[0002] Pipelines are widely used as an important transport medium in many fields such as modern industry, municipal construction, and energy transmission. To extend the service life of pipelines and prevent damage due to corrosion, pipeline coating is a crucial step in pipeline production and installation. However, before or during pipeline coating, it is often necessary to cut the pipeline to obtain a specific length according to actual construction needs.
[0003] Currently, most pipeline cutting operations employ traditional methods. These methods typically require manual handling of the pipeline to the cutting equipment, manual adjustment of its position, and then cutting with appropriate tools. During the cutting process, the lack of effective clamping and securing devices causes the pipeline to wobble, resulting in uneven cut surfaces that affect subsequent connections and overall performance. Furthermore, manual operation is not only labor-intensive but also inefficient, failing to meet the demands of large-scale pipeline processing. Additionally, after cutting, the ends of the anti-corrosion coating are prone to curling, affecting the adhesion of the coating and reducing the pipeline's corrosion resistance.
[0004] Therefore, an automatic pipe corrosion cut-off device is proposed to address the above problems. Utility Model Content
[0005] To address the problems mentioned in the background art, this utility model provides an automatic pipe coating and cutting device. This device integrates multiple functions such as conveying, clamping, cutting, and edge rolling, and can efficiently and accurately complete the pipe cutting operation. It also processes the cut surface of the pipe, greatly improving the automation level and processing quality of pipe processing.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic pipe corrosion-resistant cutting device, comprising a base, a conveying mechanism, a clamping mechanism, a cutting mechanism, and a rolling mechanism. The conveying mechanism is disposed on the surface of the base for conveying the pipe; the clamping mechanism is symmetrically mounted on the surface of the base for clamping and fixing the pipe; the cutting mechanism is disposed in the middle of the clamping mechanism for cutting the pipe; and the rolling mechanism is mounted on one side of the cutting mechanism to process the cut surface of the pipe.
[0007] Preferably, the clamping mechanism includes a limiting ring, a first hydraulic mechanism, and clamping plates. The limiting ring is symmetrically installed on the surface of the base. The first hydraulic mechanism is symmetrically installed at the upper and lower ends of the limiting ring. The clamping plates are located inside the limiting ring, and the two clamping plates are respectively fixedly connected to the extended ends of the first hydraulic mechanism. The clamping plates are arranged in an arc-shaped structure.
[0008] Preferably, the inner arc surface of the clamping plate is provided with an anti-slip pad.
[0009] Preferably, the cutting mechanism includes a mounting frame, a second hydraulic mechanism, a lowering plate, and a cutting blade. The mounting frame is mounted on the surface of the base and located between two limiting rings. The second hydraulic mechanism is mounted on the top of the mounting frame. The lowering plate is connected to the extended end of the second hydraulic mechanism. The cutting blade is mounted on the bottom of the lowering plate.
[0010] Preferably, the cutting tool includes a rotating wheel seat, a cutting saw blade, and a drive motor. The rotating wheel seats are symmetrically mounted on the bottom surface of the lower moving plate, and the cutting saw blade is wound around the surface of the rotating wheels inside the two rotating wheel seats. The output end of the drive motor is connected to one of the rotating wheels.
[0011] Preferably, guide blocks are installed at both ends of the lowering plate, and guide grooves adapted to the guide blocks are opened on the inner wall of the mounting frame, and the guide blocks slide in the guide grooves.
[0012] Preferably, the hemming mechanism includes a fixed base, a rotating drum, a reduction motor, a gear, a rack, a telescopic component, and a hemming wheel. The fixed base is mounted on one side surface of the mounting frame, the rotating drum rotates within the ring of the fixed base, the reduction motor is mounted on the upper surface of the fixed base, the gear is connected to the output end of the reduction motor, the rack is disposed on one end surface of the rotating drum, and the gear meshes with the rack. The telescopic component is mounted on the inner wall of the rotating drum and is a hydraulic telescopic rod. The hemming wheel is connected to the extended end of the telescopic component and has a convex wheel-shaped structure.
[0013] Preferably, the surface of the rolling wheel is provided with a rubber layer.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This utility model features a clamping mechanism with an arc-shaped clamping plate and anti-slip pad design, which can closely fit the pipe surface and stably clamp the pipe during cutting, effectively preventing pipe shaking and ensuring accurate cutting position. The guide block of the lower plate in the cutting mechanism and the guide groove of the mounting frame form a guiding structure, ensuring the stability and accuracy of the cutting blade's downward movement, avoiding cutting deviation, and making the cut surface flat and smooth. The edge rolling mechanism uses a convex edge rolling wheel to roll the cut surface of the pipe, which can effectively remove burrs and flash, further improving the cut surface quality and providing a good foundation for subsequent pipe coating and connection installation, thus ensuring the overall performance of the pipe.
[0016] The device integrates a conveying mechanism, a clamping mechanism, a cutting mechanism, and a rolling mechanism, realizing fully automated operation of the pipeline from conveying, clamping, cutting to rolling. It eliminates the need for manual handling of pipelines, adjustment of positions, cutting, and grinding, significantly reducing manual intervention and the labor intensity of operators. At the same time, the automated operation mode reduces reliance on manual skills, lowers the risk of quality problems and safety hazards caused by improper manual operation, saves labor costs, and improves production efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;
[0019] Figure 3 This is a schematic diagram of the cutting mechanism and the rolling mechanism in this utility model;
[0020] Figure 4 This is a side view of the overall structure of this utility model.
[0021] In the diagram: 1. Base; 2. Conveying mechanism; 3. Clamping mechanism; 31. Limiting ring; 32. First hydraulic mechanism; 33. Clamping plate; 4. Cutting mechanism; 41. Mounting bracket; 42. Second hydraulic mechanism; 43. Lowering plate; 44. Cutting blade; 441. Rotary wheel seat; 442. Cutting saw blade; 443. Drive motor; 45. Guide block; 46. Guide groove; 5. Edge rolling mechanism; 51. Fixed seat; 52. Rotary drum; 53. Gear motor; 54. Gear; 55. Rack; 56. Telescopic component; 57. Edge rolling wheel. Detailed Implementation
[0022] 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.
[0023] like Figures 1 to 4 As shown, this utility model provides an automatic pipe coating and cutting device, including a base 1, a conveying mechanism 2, a clamping mechanism 3, a cutting mechanism 4, and a rolling mechanism 5. The conveying mechanism 2 is disposed on the surface of the base 1 and is mainly used for conveying the pipe to be processed to the designated processing position. The clamping mechanism 3 is symmetrically installed on the surface of the base 1, and during the pipe cutting operation, it firmly clamps and fixes the pipe to prevent displacement during the cutting process, ensuring the accuracy of the cutting. The cutting mechanism 4 is located in the middle of the clamping mechanism 3 and is responsible for cutting the pipe. The rolling mechanism 5 is installed on one side of the cutting mechanism 4, and after the pipe is cut, it processes the pipe cut surface, removing burrs and other imperfections, improving the quality of the pipe cut surface.
[0024] like Figures 1 to 4 As shown, the main function of the clamping mechanism 3 is to reliably clamp the pipe during the pipe cutting process, ensuring the stability of the pipe position. This mechanism includes a limit ring 31, a first hydraulic mechanism 32, and a clamping plate 33.
[0025] Limiting rings 31 are symmetrically mounted on the surface of the base 1, providing a stable mounting foundation for the entire clamping mechanism. First hydraulic mechanisms 32 are symmetrically mounted at the upper and lower ends of the limiting rings 31, serving as the power source for the clamping action. Clamping plates 33 are positioned within the limiting rings 31, and both clamping plates 33 are fixedly connected to the extended ends of the first hydraulic mechanisms 32. The clamping plates 33 have an arc-shaped structure, which adapts to the shape of the pipe, allowing for better contact with the pipe surface and improving clamping stability. Furthermore, the inner arc surface of the clamping plates 33 is equipped with anti-slip pads, increasing the friction between the clamping plates 33 and the pipe, further preventing slippage during clamping and ensuring effective clamping. When clamping the pipe is required, the first hydraulic mechanism 32 activates, its extended end pushing the clamping plates 33 towards the pipe until the two clamping plates 33 are tightly pressed against the pipe surface, firmly clamping the pipe.
[0026] like Figures 1 to 4 As shown, the cutting mechanism 4 is used to cut the clamped and fixed pipe. It includes a mounting bracket 41, a second hydraulic mechanism 42, a lowering plate 43, and a cutting blade 44.
[0027] Mounting bracket 41 is mounted on the surface of base 1 and located between two limiting rings 31, providing mounting support for other components of cutting mechanism 4. Second hydraulic mechanism 42 is mounted on top of mounting bracket 41, providing power for the downward movement of cutting blade 44. Lowering plate 43 is connected to the extended end of second hydraulic mechanism 42 and can move up and down under the drive of second hydraulic mechanism 42. Cutting blade 44 is mounted on the bottom of lowering plate 43 and moves with lowering plate 43 to complete the cutting action.
[0028] Guide blocks 45 are installed at both ends of the lowering plate 43. The inner wall of the mounting bracket 41 is provided with guide grooves 46 that are adapted to the guide blocks 45, and the guide blocks 45 slide in the guide grooves 46. This guiding structure can ensure the stability and accuracy of the lowering plate 43 during the up and down movement, and prevent the cutting blade 44 from deviating during the cutting process, which would affect the cutting quality.
[0029] The cutting component 44 includes a rotating wheel base 441, a cutting saw blade 442, and a drive motor 443. The rotating wheel bases 441 are symmetrically mounted on the bottom surface of the lowering plate 43, providing support and guidance for the cutting saw blade 442. The cutting saw blade 442 rotates around the surfaces of the rotating wheels inside the two rotating wheel bases 441, achieving high-speed rotation under the drive motor 443, thereby cutting the pipe. The output end of the drive motor 443 is connected to one of the rotating wheels, providing power for the operation of the cutting saw blade 442.
[0030] During the cutting operation, the second hydraulic mechanism 42 drives the lower plate 43 to move downwards, while the drive motor 443 drives the cutting saw blade 442 to rotate at high speed. After the cutting saw blade 442 contacts the pipe, the cutting operation is completed. After the cutting is completed, the second hydraulic mechanism 42 drives the lower plate 43 and the cutting blade 44 to return to their original positions.
[0031] like Figures 1 to 4 As shown, the edging mechanism 5 is installed on one side of the cutting mechanism 4. Its main function is to process the pipe cut surface after the pipe is cut, remove burrs, and make the cut surface smoother. The mechanism includes a fixed base 51, a rotating drum 52, a reduction motor 53, a gear 54, a rack 55, a telescopic component 56, and an edging wheel 57.
[0032] A fixed base 51 is mounted on one side surface of the mounting bracket 41, providing a mounting base for other components of the hemming mechanism 5. The rotating drum 52 rotates within the ring of the fixed base 51, capable of rotating around its own axis. A geared motor 53 is mounted on the upper surface of the fixed base 51, providing power for the rotation of the rotating drum 52. A gear 54 is connected to the output end of the geared motor 53, and a rack 55 is disposed on one end surface of the rotating drum 52, with the gear 54 meshing with the rack 55. When the geared motor 53 operates, the rotating drum 52 is driven to rotate through the meshing transmission of the gear 54 and rack 55.
[0033] The telescopic component 56 is installed on the inner wall of the rotating drum 52. The telescopic component 56 is a hydraulic telescopic rod capable of telescopic movement. The edging wheel 57 is connected to the extended end of the telescopic component 56 and, driven by the telescopic component 56, can approach or move away from the pipe cut surface. The edging wheel 57 has a convex wheel-shaped structure, which allows for better contact with the pipe cut surface and improves the edging effect. Furthermore, the surface of the edging wheel 57 is covered with a rubber layer. This rubber layer has a certain degree of elasticity and wear resistance, ensuring both the treatment effect on the cut surface and preventing damage to the pipe surface during the edging process.
[0034] After the pipe is cut, the telescopic component 56 extends, pushing the rolling wheel 57 into contact with the pipe cut surface. Then, the reduction motor 53 drives the rotating drum 52 to rotate. The rotating drum 52 drives the telescopic component 56 and the rolling wheel 57 to rotate around the pipe cut surface. The rolling wheel 57 rolls the pipe cut surface, completing the processing. After processing, the telescopic component 56 retracts, driving the rolling wheel 57 away from the pipe cut surface, and the rotating drum 52 stops rotating.
[0035] Working principle and process: Conveying: Conveying mechanism 2 transports the pipe to be cut to the position of clamping mechanism 3, so that the part of the pipe to be cut is directly below the cutting mechanism 4.
[0036] Clamping: The first hydraulic mechanism 32 in the clamping mechanism 3 is activated, pushing the clamping plate 33 to move toward the pipeline until the two clamping plates 33 firmly clamp the pipeline.
[0037] Cutting: The second hydraulic mechanism 42 in the cutting mechanism 4 drives the lower plate 43 to move downward, while the drive motor 443 drives the cutting saw blade 442 to rotate at high speed, and the cutting saw blade 442 cuts the pipe. After the cutting is completed, the second hydraulic mechanism 42 drives the lower plate 43 and the cutting blade 44 to return to their original position.
[0038] Hemming process: The telescopic component 56 in the hemming mechanism 5 extends, causing the hemming wheel 57 to contact the pipe cut surface. Then, the reduction motor 53 drives the rotating drum 52 to rotate, and the hemming wheel 57 rolls the pipe cut surface. After the process is completed, the telescopic component 56 retracts, the hemming wheel 57 moves away from the pipe cut surface, and the rotating drum 52 stops rotating.
[0039] Release and transfer: The first hydraulic mechanism 32 in the clamping mechanism 3 drives the clamping plate 33 to reset, releasing the clamp on the pipe. The transfer mechanism 2 then transfers the cut pipe away, completing one pipe cutting operation.
[0040] This automatic pipe coating and cutting device achieves automatic pipe conveying, clamping, cutting, and edge rolling through the coordinated operation of various mechanisms. It has the advantages of high automation, good processing quality, and high efficiency, and is suitable for pipe coating and cutting operations of various specifications.
[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for automatic cutting off of the pipeline coating corrosion, comprising a base (1), characterized in that: It also includes a conveying mechanism (2), a clamping mechanism (3), a cutting mechanism (4) and a rolling mechanism (5). The conveying mechanism (2) is set on the surface of the base (1) for conveying the pipe; the clamping mechanism (3) is symmetrically installed on the surface of the base (1) for clamping and fixing the pipe; the cutting mechanism (4) is set in the middle of the clamping mechanism (3) for cutting the pipe; the rolling mechanism (5) is installed on one side of the cutting mechanism (4) to process the pipe cut surface.
2. The automatic pipe corrosion cut-off device according to claim 1, characterized in that: The clamping mechanism (3) includes a limiting ring (31), a first hydraulic mechanism (32) and a clamping plate (33). The limiting ring (31) is symmetrically installed on the surface of the base (1). The first hydraulic mechanism (32) is symmetrically installed at the upper and lower ends of the limiting ring (31). The clamping plate (33) is located inside the limiting ring (31), and the two clamping plates (33) are respectively fixedly connected to the extended end of the first hydraulic mechanism (32). The clamping plate (33) is arranged in an arc-shaped structure.
3. The automatic pipe corrosion cut-off device according to claim 2, characterized in that: The inner arc surface of the clamping plate (33) is provided with an anti-slip pad.
4. The automatic pipe corrosion cut-off device according to claim 1, characterized in that: The cutting mechanism (4) includes a mounting bracket (41), a second hydraulic mechanism (42), a lowering plate (43), and a cutting blade (44). The mounting bracket (41) is mounted on the surface of the base (1) and located between two limiting rings (31). The second hydraulic mechanism (42) is mounted on the top of the mounting bracket (41). The lowering plate (43) is connected to the extended end of the second hydraulic mechanism (42). The cutting blade (44) is mounted on the bottom of the lowering plate (43).
5. The automatic pipe corrosion cut-off device according to claim 4, characterized in that: The cutting blade (44) includes a rotating wheel seat (441), a cutting saw blade (442), and a drive motor (443). The rotating wheel seat (441) is symmetrically installed on the bottom surface of the lower plate (43). The cutting saw blade (442) is wound around the rotating wheel surface inside the two rotating wheel seats (441). The output end of the drive motor (443) is connected to one of the rotating wheels.
6. The automatic pipe corrosion cut-off device according to claim 4, characterized in that: Guide blocks (45) are installed at both ends of the lower plate (43), and guide grooves (46) adapted to the guide blocks (45) are opened on the inner wall of the mounting bracket (41). The guide blocks (45) slide in the guide grooves (46).
7. The automatic pipe corrosion cut-off device according to claim 1, characterized in that: The hemming mechanism (5) includes a fixed base (51), a rotating drum (52), a reduction motor (53), a gear (54), a rack (55), a telescopic member (56), and a hemming wheel (57). The fixed base (51) is installed on one side surface of the mounting frame (41). The rotating drum (52) rotates within the ring of the fixed base (51). The reduction motor (53) is installed on the upper surface of the fixed base (51). The gear (54) is connected to the output end of the reduction motor (53). The rack (55) is located on one end surface of the rotating drum (52). The gear (54) meshes with the rack (55). The telescopic member (56) is installed on the inner wall of the rotating drum (52). The telescopic member (56) is a hydraulic telescopic rod. The hemming wheel (57) is connected to the extended end of the telescopic member (56). The hemming wheel (57) has a convex wheel-shaped structure.
8. The automatic pipe corrosion cut-off device according to claim 7, characterized in that: The surface of the rolling wheel (57) is provided with a rubber layer.