Cutting device for threaded pipe production and machining

By designing a cutting device with conveying, fixing, and limiting structures, the problems of low cutting efficiency and positional deviation of threaded pipes were solved, realizing automatic fixed-length cutting and improving the production efficiency and cutting quality of threaded pipes.

CN224168872UActive Publication Date: 2026-04-28HEBEI TUOAN PIPELINE IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI TUOAN PIPELINE IND CO LTD
Filing Date
2025-04-18
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing threaded pipe cutting devices require manual marking and measurement during the cutting process, resulting in low cutting efficiency. Furthermore, the threaded pipe is prone to positional shifts due to vibration, leading to inaccurate cutting lengths.

Method used

A cutting device comprising a conveying structure, a fixing structure, and a limiting structure is designed. The threaded tube is conveyed by a conveying wheel, the fixing structure fixes the threaded tube during the cutting process, the limiting structure ensures accurate cutting length, and the threaded rod and push rod are driven by a motor to achieve automatic fixed-length cutting.

Benefits of technology

It enables rapid and accurate cutting of threaded pipes, reduces manual measurement steps, improves cutting efficiency, and ensures the accuracy of cutting length.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cutting device for threaded pipe production and processing, which comprises a bottom plate, a conveying structure is fixedly arranged on the bottom plate, the conveying structure comprises a first mounting frame, a second mounting frame, a conveying wheel and a supporting wheel, the first mounting frame is fixedly arranged on the bottom plate, a fixing structure is fixedly arranged on the bottom plate, and the second mounting frame is fixedly arranged on the fixing structure. The conveying of the threaded pipe is realized through the conveying structure; the fixing structure comprises a fixing ring, a supporting block and a fixing block, the fixing ring is fixedly arranged on the bottom plate, a limiting structure is fixedly arranged at the side end of the fixing ring and comprises a movable frame, a movable block and a second threaded rod, the movable frame is fixedly arranged on the bottom plate, the movable block is movably arranged on the movable frame, and the second threaded rod is fixedly arranged on the supporting block. A supporting frame is fixedly arranged on the bottom plate, a cutting saw is movably arranged on the supporting frame, a threaded pipe is fixed in the cutting process through a fixing structure, and the threaded pipe is cut through the cutting saw.
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Description

Technical Field

[0001] This utility model relates to the field of threaded pipe production, and more specifically, it relates to a cutting device for threaded pipe production and processing. Background Technology

[0002] Threaded tubes are very common in industrial production. Also known as low-finned tubes, they mainly rely on external fins to increase the heat transfer area. They are generally used in situations where the internal heat transfer coefficient is more than twice that of the external heat transfer coefficient. Due to surface tension, they also have a good enhancing effect on external condensation and boiling. When using threaded tubes, it is often necessary to cut them according to the required length. Therefore, a cutting device is needed to cut the threaded tubes. Existing cutting devices generally only have a cutting structure. When cutting threaded tubes, the operator needs to determine the cutting length in advance, mark a line on the threaded tube, and then cut at the marked position. Therefore, the cutting efficiency is low and it is inconvenient to cut threaded tubes quickly. Moreover, during the cutting process, the threaded tube will shift due to the vibration generated by the cutting, causing the cutting position to change, which affects the cutting length of the threaded tube and thus the cutting quality. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the problems existing in the prior art, this utility model provides a cutting device for the production and processing of threaded pipes, so as to solve the technical problems mentioned in the background art.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cutting device for producing and processing threaded pipes, comprising a base plate, on which a conveying structure is fixedly disposed, the conveying structure comprising a first mounting frame, a second mounting frame, a conveying wheel and a support wheel, wherein multiple first mounting frames and support wheels are provided, the first mounting frame is fixedly disposed on the base plate, and a fixing structure is fixedly disposed on the base plate, thereby realizing the conveying of threaded pipes through the conveying structure;

[0007] The fixing structure includes a fixing ring, a support block, and a fixing block. The fixing ring is fixedly mounted on the base plate. A limiting structure is fixedly mounted on the side end of the fixing ring. The limiting structure includes a movable frame, a movable block, and a second threaded rod. The movable frame is fixedly mounted on the base plate. The movable block is movably mounted on the movable frame. A support frame is fixedly mounted on the base plate. A cutting saw is movably mounted on the support frame. The threaded tube is fixed during the cutting process by the fixing structure, and the threaded tube is cut by the cutting saw.

[0008] The present invention is further configured such that the support wheel is rotatably mounted on the first mounting frame, the second mounting frame is fixedly mounted on the base plate and located at the upper end of the first mounting frame at the outermost edge of the base plate, and the conveying wheel is mounted on the second mounting frame and rotatably connected to the second mounting frame, thereby realizing the conveying of the threaded pipe by the rotation of the conveying wheel.

[0009] The present invention is further configured such that the support block is fixedly disposed inside the support ring, the support ring has a through hole, the fixing block is disposed inside the through hole, and an extension frame is fixedly disposed on the side end of the support ring, and multiple extension frames are provided, thereby facilitating the movement of the fixing block within the through hole.

[0010] The present invention is further configured such that a second electric push rod is fixedly installed on the extension frame, the movable end of the second electric push rod is fixedly connected to the fixed block, and the fixed block is slidably connected to the through hole, thereby driving the fixed block to move through the second electric push rod.

[0011] The present invention is further configured such that a sliding groove is provided on the movable frame, the movable block is movably disposed in the sliding groove, the second threaded rod is disposed in the sliding groove, the second threaded rod is rotatably connected to both the movable frame and the fixed ring, and the second threaded rod passes through the movable block, thereby facilitating the installation of the movable block and the second threaded rod on the movable frame.

[0012] The present invention is further configured such that the movable block is threadedly connected to the second threaded rod, a limit plate is fixedly provided at the upper end of the movable block, pointers are fixedly provided at both ends of the movable block, and scale lines are provided on the side end of the movable frame, so as to facilitate the positioning of the movable block.

[0013] The present invention is further configured such that a first threaded rod is provided on the support frame, an installation block is movably provided on the support frame, a first electric push rod is fixedly provided at the lower end of the installation block, and the cutting saw is fixedly provided at the moving end of the first electric push rod, thereby facilitating the installation of the cutting saw.

[0014] The present invention is further configured such that the first threaded rod is rotatably connected to the support frame, the first threaded rod passes through the mounting block, and the first threaded rod is threadedly connected to the mounting block, thereby realizing the vertical and longitudinal movement of the cutting saw.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a cutting device for the production and processing of threaded pipes, which has the following beneficial effects:

[0017] 1. This utility model, by setting a limiting structure, allows for the cutting of threaded pipes to the required length. An external motor mounted on a movable frame drives a second threaded rod to rotate, based on the desired length after cutting. The threaded connection between the second threaded rod and the movable block causes the movable block to move on the movable frame. The positions of the movable block and the limiting plate are determined by the coordination of a pointer and a scale. An external motor mounted on a second mounting frame drives a conveyor wheel to rotate, thus conveying the long threaded pipe to the movable frame. The limiting plate on the movable block blocks one end of the threaded pipe, allowing it to continue being conveyed to the limiting plate after cutting. This enables the threaded pipe to be cut to the required length without needing to measure again, facilitating rapid cutting and increasing the production speed of threaded pipes.

[0018] 2. By setting a fixed structure, when the threaded tube is delivered to the position, after one end of the threaded tube contacts the limiting plate, the extension of the second electric push rod set on the extension frame of the fixed ring drives the fixed block to extend out through the hole, contact the surface of the threaded tube and clamp it. Thus, through the cooperation of the fixed block and the support block, the position of the threaded tube is fixed, which helps to reduce the positional displacement of the threaded tube during the cutting process and facilitates accurate cutting of the threaded tube.

[0019] 3. This utility model, by setting up multiple sets of conveying structures, fixing structures, and limiting structures, allows for the adjustment of the position of the limiting plate of each limiting structure when cutting different types of threaded pipes to different lengths. When cutting the threaded pipe, an external motor on the support frame drives the first threaded rod to rotate, which in turn moves the mounting block, thereby moving the cutting saw. The extension of the first electric push rod causes the cutting saw to descend and cut the threaded pipe. As the cutting saw moves, it cuts the threaded pipes on multiple sets of structures, making it easy to cut different threaded rods to different lengths according to requirements, thus facilitating the rapid production of threaded pipes. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of a cutting device for producing and processing threaded pipes;

[0021] Figure 2 A side view of the overall structure of a cutting device for producing and processing threaded pipes;

[0022] Figure 3 A top view of the overall structure of a cutting device for producing and processing threaded pipes;

[0023] Figure 4 A schematic diagram of the structure of the base plate of a cutting device for producing and processing threaded pipes;

[0024] Figure 5This is a schematic diagram of the moving block of a cutting device used in the production and processing of threaded pipes.

[0025] In the diagram: 1. Base plate; 2. First mounting bracket; 3. Second mounting bracket; 4. Conveyor wheel; 5. Support wheel; 6. Fixing ring; 7. Support block; 8. Fixing block; 9. Moving frame; 10. Moving block; 11. Second threaded rod; 12. Support frame; 13. Cutting saw; 14. Through hole; 15. Extension frame; 16. Second electric push rod; 17. Slide groove; 18. Limiting plate; 19. Pointer; 20. Scale line; 21. First threaded rod; 22. Mounting block; 23. First electric push rod. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figure 1-5 A cutting device for producing and processing threaded pipes includes a base plate 1, on which a conveying structure is fixedly installed. The conveying structure includes a first mounting frame 2, a second mounting frame 3, a conveying wheel 4, and a support wheel 5. Multiple first mounting frames 2 and multiple support wheels 5 are provided. The first mounting frame 2 is fixedly installed on the base plate 1, and a fixing structure is fixedly installed on the base plate 1.

[0030] The fixing structure includes a fixing ring 6, a support block 7, and a fixing block 8. The fixing ring 6 is fixedly mounted on the base plate 1. A limiting structure is fixedly mounted on the side end of the fixing ring 6. The limiting structure includes a movable frame 9, a movable block 10, and a second threaded rod 11. The movable frame 9 is fixedly mounted on the base plate 1. The movable block 10 is movably mounted on the movable frame 9. A support frame 12 is fixedly mounted on the base plate 1. A cutting saw 13 is movably mounted on the support frame 12.

[0031] In this embodiment, the main structure of the entire cutting device is formed by the cooperation of the base plate 1, the conveying structure, the fixing structure, the limiting structure, the support frame 12 and the cutting saw 13.

[0032] More specifically, the threaded tube is conveyed by a conveying structure, the position of the threaded tube is fixed during the cutting process by a fixing structure, the cutting length of the threaded tube is fixed by a limiting structure, and the threaded tube is cut by a cutting saw 13.

[0033] Please see Figures 1-5 As an embodiment for conveying and fixing the length of threaded pipe: support wheel 5 is rotatably mounted on first mounting frame 2, second mounting frame 3 is fixedly mounted on base plate 1 and located at the upper end of the first mounting frame 2 at the outermost edge of base plate 1, conveying wheel 4 is mounted on second mounting frame 3 and rotatably connected to second mounting frame 3, sliding frame 9 is provided with sliding groove 17, moving block 10 is movably mounted in sliding groove 17, second threaded rod 11 is mounted in sliding groove 17, second threaded rod 11 is rotatably connected to moving frame 9 and fixed ring 6, second threaded rod 11 passes through moving block 10, moving block 10 is threadedly connected to second threaded rod 11, limit plate 18 is fixedly mounted on the upper end of moving block 10, pointer 19 is fixedly mounted on both ends of moving block 10, and scale line 20 is provided on the side end of moving frame 9;

[0034] Specifically, when the threaded tube needs to be cut to the required length, the external motor on the moving frame 9 drives the second threaded rod 11 to rotate according to the required length after cutting. Through the threaded connection between the second threaded rod 11 and the moving block 10, the moving block 10 is moved on the moving frame 9. The position of the moving block 10 and the limiting plate 18 is determined by the cooperation of the pointer 19 and the scale line 20. The external motor on the second mounting frame 3 drives the conveying wheel 4 to rotate, thereby conveying the long threaded tube to the moving frame 9. The limiting plate 18 on the moving block 10 blocks one end of the threaded tube to achieve the fixed length of the threaded tube.

[0035] Please refer to Figure 1-5 As one embodiment of fixing the threaded pipe: the support block 7 is fixedly installed inside the support ring, the support ring has a through hole 14, the fixing block 8 is installed in the through hole 14, the side end of the support ring is fixedly installed with an extension frame 15, multiple extension frames 15 are provided, the extension frame 15 is fixedly installed with a second electric push rod 16, the moving end of the second electric push rod 16 is fixedly connected between the fixing blocks 8, and the fixing blocks 8 are slidably connected with the through hole 14;

[0036] Specifically, when the threaded tube is delivered to the position, after one end of the threaded tube contacts the limiting plate 18, the extension of the second electric push rod 16 on the extension frame 15 of the fixing ring 6 causes the fixing block 8 to extend out of the through hole 14, contact the surface of the threaded tube and clamp it, thereby fixing the position of the threaded tube through the cooperation of the fixing block 8 and the support block 7.

[0037] Please refer to Figure 1-5As one embodiment of threaded pipe cutting: a first threaded rod 21 is provided on the support frame 12, and an mounting block 22 is movably provided on the support frame 12. A first electric push rod 23 is fixedly provided at the lower end of the mounting block 22. The cutting saw 13 is fixedly provided at the moving end of the first electric push rod 23. The first threaded rod 21 is rotatably connected to the support frame 12. The first threaded rod 21 passes through the mounting block 22, and the first threaded rod 21 is threadedly connected to the mounting block 22.

[0038] Specifically, when cutting the threaded pipe, the first threaded rod 21 is rotated by an external motor installed on the support frame 12. The first threaded rod 21 drives the mounting block 22 to move, thereby moving the cutting saw 13. The cutting saw 13 is lowered by the extension of the first electric push rod 23 to cut the threaded pipe.

[0039] In summary, when using it as a whole:

[0040] When the threaded tube needs to be cut to the required length, the second threaded rod 11 is rotated by an external motor on the moving frame 9 according to the required length after cutting. The moving block 10 is moved on the moving frame 9 by the threaded connection between the second threaded rod 11 and the moving block 10. The position of the moving block 10 and the limiting plate 18 is determined by the cooperation of the pointer 19 and the scale line 20. The conveying wheel 4 is rotated by an external motor on the second mounting frame 3, so that the long threaded tube is conveyed to the moving frame 9. The limiting plate 18 on the moving block 10 blocks one end of the threaded tube to achieve the fixed length of the threaded tube.

[0041] When the threaded tube is delivered to the position, one end of the threaded tube contacts the limiting plate 18. The extension of the second electric push rod 16 on the extension frame 15 of the fixing ring 6 causes the fixing block 8 to extend out of the through hole 14, contact the surface of the threaded tube and clamp it. Thus, the position of the threaded tube is fixed by the cooperation of the fixing block 8 and the support block 7.

[0042] When cutting the threaded pipe, the external motor installed on the support frame 12 drives the first threaded rod 21 to rotate, and the first threaded rod 21 drives the mounting block 22 to move, thereby realizing the movement of the cutting saw 13. The extension of the first electric push rod 23 drives the cutting saw 13 to descend and cut the threaded pipe.

[0043] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cutting device for producing and processing threaded pipes, comprising a base plate (1), characterized in that: A conveying structure is fixedly installed on the base plate (1). The conveying structure includes a first mounting frame (2), a second mounting frame (3), a conveying wheel (4), and a support wheel (5). Multiple first mounting frames (2) and support wheels (5) are provided. The first mounting frame (2) is fixedly installed on the base plate (1). A fixing structure is fixedly installed on the base plate (1). The fixing structure includes a fixing ring (6), a support block (7), and a fixing block (8). The fixing ring (6) is fixedly mounted on the base plate (1). A limiting structure is fixedly mounted on the side end of the fixing ring (6). The limiting structure includes a moving frame (9), a moving block (10), and a second threaded rod (11). The moving frame (9) is fixedly mounted on the base plate (1). The moving block (10) is movably mounted on the moving frame (9). A support frame (12) is fixedly mounted on the base plate (1). A cutting saw (13) is movably mounted on the support frame (12).

2. The cutting device for threaded pipe production and processing according to claim 1, characterized in that: The support wheel (5) is rotatably mounted on the first mounting frame (2), the second mounting frame (3) is fixedly mounted on the base plate (1) and located at the upper end of the outermost edge of the first mounting frame (2) on the base plate (1), and the conveying wheel (4) is mounted on the second mounting frame (3) and is rotatably connected to the second mounting frame (3).

3. The cutting device for threaded pipe production and processing according to claim 1, characterized in that: The support block (7) is fixedly installed inside the support ring. The support ring has a through hole (14). The fixing block (8) is installed inside the through hole (14). An extension frame (15) is fixedly installed on the side end of the support ring. Multiple extension frames (15) are provided.

4. The cutting device for threaded pipe production and processing according to claim 3, characterized in that: A second electric push rod (16) is fixedly installed on the extension frame (15). The moving end of the second electric push rod (16) is fixedly connected between the fixed blocks (8). The fixed blocks (8) are slidably connected to the through hole (14).

5. A cutting device for threaded pipe production and processing according to claim 1, characterized in that: The movable frame (9) is provided with a sliding groove (17), the movable block (10) is movably disposed in the sliding groove (17), the second threaded rod (11) is disposed in the sliding groove (17), the second threaded rod (11) is rotatably connected to the movable frame (9) and the fixed ring (6), and the second threaded rod (11) passes through the movable block (10).

6. A cutting device for producing and processing threaded pipes according to claim 5, characterized in that: The movable block (10) is threadedly connected to the second threaded rod (11). A limit plate (18) is fixedly provided on the upper end of the movable block (10). A pointer (19) is fixedly provided on both ends of the movable block (10). A scale line (20) is provided on the side end of the movable frame (9).

7. A cutting device for threaded pipe production and processing according to claim 1, characterized in that: The support frame (12) is provided with a first threaded rod (21), and the support frame (12) is movably provided with an installation block (22). The lower end of the installation block (22) is fixedly provided with a first electric push rod (23), and the cutting saw (13) is fixedly provided at the moving end of the first electric push rod (23).

8. A cutting device for producing and processing threaded pipes according to claim 7, characterized in that: The first threaded rod (21) is rotatably connected to the support frame (12), the first threaded rod (21) passes through the mounting block (22), and the first threaded rod (21) is threadedly connected to the mounting block (22).