Corrugated pipe cutting equipment

By designing a corrugated pipe cutting device that utilizes a movable seat, a three-jaw chuck, and an expansion mechanism to support the corrugated pipe, the deformation problem caused by traditional cutting equipment is solved, achieving efficient and precise corrugated pipe cutting.

CN224116263UActive Publication Date: 2026-04-14ANHUI FUTONG PLASTICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI FUTONG PLASTICS TECH CO LTD
Filing Date
2025-04-27
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Traditional cutting equipment and methods can easily cause corrugated pipes to deform due to excessive external force when cutting them, thus affecting their original performance.

Method used

A corrugated pipe cutting device was designed, comprising a movable seat, a three-jaw chuck, an expansion mechanism, and a cutting assembly. The position is adjusted by an electric slide rail. The three-jaw chuck clamps the corrugated pipe. The expansion mechanism provides support from the inside out during cutting to prevent deformation. A support plate provides additional support to ensure cutting quality.

Benefits of technology

This effectively avoids deformation of the corrugated pipe during the cutting process, ensuring the quality and performance after cutting, and improving cutting efficiency and precision.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model is applicable to the technical field of corrugated pipe processing, and provides corrugated pipe cutting equipment, which comprises a base and a cutting component, a movable seat and a fixed plate are further arranged on the base, a three-jaw chuck is mounted on the movable seat, the three-jaw chuck is rotatably arranged on the fixed plate, and a horizontally arranged supporting pipe is fixedly arranged on the fixed plate. The end of the supporting pipe extends to the position below the cutting assembly and is provided with an expanding and supporting mechanism, the expanding and supporting mechanism comprises a hollow cylinder, a movable part and a driving assembly, the position of a movable seat can be flexibly adjusted through an electric sliding rail, corrugated pipes with different lengths can be conveniently matched, a three-jaw chuck can firmly clamp one end of each corrugated pipe and rotate under driving of a stepping motor, and all-directional cutting is facilitated. And due to the arrangement of the expanding and supporting mechanism, during cutting, the supporting pipe is inserted from the other end of the corrugated pipe, the driving assembly drives the multiple arc-shaped movable parts to synchronously expand outwards, the cut part of the corrugated pipe is supported from inside to outside, notch deformation caused by external force is effectively avoided, and the quality and original performance of the cut corrugated pipe are guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe processing technology, specifically a corrugated pipe cutting device. Background Technology

[0002] In modern industry, corrugated pipes are widely used in aerospace, petrochemical, and automotive manufacturing industries due to their excellent flexibility, elasticity, and corrosion resistance. They play a crucial role in various systems, including fluid transport, displacement compensation, and vibration absorption.

[0003] However, there are still some problems in the cutting process of corrugated pipes: due to the flexibility and elasticity of the corrugated pipes themselves, traditional cutting equipment and methods are very easy to damage them. If the external force applied during cutting is too large, or if the cutting tool exerts too much pressure on the pipe during operation, the corrugated pipe will inevitably deform near the cut. Once the corrugated pipe is deformed, its original excellent performance will be greatly reduced.

[0004] Therefore, developing a new type of corrugated pipe cutting equipment that can avoid causing improper external forces to the corrugated pipe, ensure that the corrugated pipe does not deform during the cutting process, and thus ensure that its original performance is not affected, has become a key problem that urgently needs to be solved in the current industrial manufacturing field. Utility Model Content

[0005] The purpose of this invention is to provide a corrugated pipe cutting device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A corrugated pipe cutting device includes a base and a cutting assembly mounted on the base. A movable seat is provided on one side of the cutting assembly on the base. The movable seat is movably set via an electric slide rail. A three-jaw chuck is mounted on the movable seat and is rotatably set via a stepper motor installed inside the movable seat. A fixing plate is also fixedly set on the other side of the cutting assembly on the base. A horizontally arranged support tube is fixedly set on the fixing plate. The end of the support tube extends to the bottom of the cutting assembly and is equipped with an expansion mechanism. The expansion mechanism includes a hollow cylinder fixedly installed at the end of the support tube, multiple movable parts arranged in an array outside the hollow cylinder, and a driving assembly that drives the multiple movable parts to move synchronously toward or away from the axis of the hollow cylinder. The movable parts have an arc-shaped structure.

[0008] As a further embodiment of this utility model: the cutting assembly includes a fixed frame fixedly mounted on the base, a telescopic cylinder mounted on the fixed frame, and a cutting module mounted on the telescopic end of the telescopic cylinder.

[0009] As a further embodiment of this utility model: a support plate is also provided on the base below the cutting module, and the support plate is movably set by an electric push rod.

[0010] As a further embodiment of this utility model: the driving assembly includes a fixed ring fixedly installed inside the hollow cylinder, a first bevel gear rotatably installed inside the fixed ring, and a plurality of second bevel gears meshing around the first bevel gear. The first bevel gear is driven by a servo motor installed inside the hollow cylinder. A screw is fixedly installed on the axis of the second bevel gear. The screw is rotatably installed on the fixed ring, and a threaded sleeve is threaded on the screw. The threaded sleeve movably penetrates the side wall of the hollow cylinder and is fixedly connected to the movable part.

[0011] As a further embodiment of this utility model, the multiple movable parts are also provided with cutting grooves, which correspond to the cutting blades in the cutting module.

[0012] As a further embodiment of this utility model: a pair of connecting rods are symmetrically arranged between adjacent movable parts. The connecting rods have an arc-shaped structure. One end of the connecting rod is fixedly installed on the end face of one of the movable parts, and the other end is movably inserted into the other movable part. A spring is also sleeved on the connecting rod.

[0013] As a further embodiment of this utility model: the support tube has scale lines on its wall and a limiting plate is movably sleeved on the support tube, with a positioning bolt threaded onto the limiting plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model's movable seat can be flexibly adjusted in position via an electric slide rail, making it easy to adapt to corrugated pipes of different lengths. The three-jaw chuck can firmly clamp one end of the corrugated pipe and rotate it under the drive of a stepper motor, facilitating all-around cutting. The expansion mechanism is designed so that during cutting, the support tube is inserted from the other end of the corrugated pipe, and the drive component drives multiple arc-shaped movable parts to expand outward synchronously, supporting the cut part of the corrugated pipe from the inside out. This effectively avoids deformation of the cut caused by external force, ensuring the quality and original performance of the corrugated pipe after cutting. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a corrugated pipe cutting device.

[0017] Figure 2 for Figure 1 Side view of the cut component section;

[0018] Figure 3 for Figure 2 Schematic diagram of the internal structure of the hollow cylinder;

[0019] Figure 4 for Figure 1Enlarged view of the central support tube and the expansion support mechanism;

[0020] In the diagram: 1. Base; 2. Cutting assembly; 3. Movable seat; 4. Three-jaw chuck; 5. Stepper motor; 6. Fixing plate; 7. Support tube; 8. Expansion mechanism; 9. Hollow cylinder; 10. Movable part; 11. Fixing frame; 12. Telescopic cylinder; 13. Cutting module; 14. Support plate; 15. Electric push rod; 16. Fixing ring; 17. First bevel gear; 18. Second bevel gear; 19. Screw; 20. Screw sleeve; 21. Tool groove; 22. Connecting rod; 23. Spring; 24. Scale line; 25. Limiting plate; 26. Positioning bolt. Detailed Implementation

[0021] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0022] Example 1

[0023] Please see Figure 1-4 A corrugated pipe cutting device includes a base 1 and a cutting assembly 2 mounted on the base 1. A movable seat 3 is disposed on one side of the cutting assembly 2 on the base 1. The movable seat 3 is movably mounted via an electric slide rail. A three-jaw chuck 4 is mounted on the movable seat 3 and rotates via a stepper motor 5 disposed within the movable seat 3. A fixing plate 6 is also fixedly disposed on the other side of the base 1 on the cutting assembly 2. A horizontally arranged support tube 7 is fixedly disposed on the fixing plate 6. The end of the support tube 7 extends below the cutting assembly 2 and is equipped with an expansion mechanism 8. The expansion mechanism 8 includes a hollow cylinder 9 fixedly mounted on the end of the support tube 7 and multiple [unclear - possibly referring to components or elements] arranged in an array outside the hollow cylinder 9. Each movable component 10 and a drive assembly that drives multiple movable components 10 to move synchronously toward or away from the axis of the hollow cylinder 9. The movable component 10 has an arc-shaped structure. The movable seat 3 can be flexibly adjusted in position via an electric slide rail to easily adapt to corrugated pipes of different lengths. The three-jaw chuck 4 can firmly clamp one end of the corrugated pipe and rotate under the drive of the stepper motor 5, facilitating all-round cutting. The expansion mechanism 8 is set up so that during cutting, the support tube 7 is inserted from the other end of the corrugated pipe, and the drive assembly drives multiple arc-shaped movable components 10 to expand outward synchronously, supporting the cut part of the corrugated pipe from the inside out, effectively avoiding the deformation of the cut caused by external force, and ensuring the quality and original performance of the corrugated pipe after cutting.

[0024] The cutting assembly 2 includes a fixed frame 11 fixedly mounted on the base 1, a telescopic cylinder 12 mounted on the fixed frame 11, and a cutting module 13 mounted on the telescopic end of the telescopic cylinder 12.

[0025] In addition, a support plate 14 is provided on the base 1 below the cutting module 13. The support plate 14 is movably set by an electric push rod 15. The support plate 14 can be flexibly raised and lowered under the drive of the electric push rod 15. During cutting, the support plate 14 can rise to provide auxiliary support to the bottom of the corrugated pipe, further enhancing the stability of the corrugated pipe during the cutting process, preventing the corrugated pipe from shifting or deforming due to its own weight or cutting vibration, and improving the cutting quality.

[0026] Specifically, the drive assembly includes a fixed ring 16 fixedly installed inside the hollow cylinder 9, a first bevel gear 17 rotatably installed inside the fixed ring 16, and multiple second bevel gears 18 meshing around the first bevel gear 17. The first bevel gear 17 is driven by a servo motor installed inside the hollow cylinder 9. A screw 19 is fixedly installed on the axis of the second bevel gear 18. The screw 19 is rotatably installed on the fixed ring 16, and a threaded sleeve 20 is threaded on the screw 19. The threaded sleeve 20 movably penetrates the side wall of the hollow cylinder 9 and is fixedly connected to the movable part 10. The servo motor drives the first bevel gear 17 to rotate, and the multiple second bevel gears 18 drive the screw 19 to rotate synchronously, causing the threaded sleeve 20 to move along the screw 19, thereby driving the multiple movable parts 10 to move synchronously towards or away from the axis of the hollow cylinder 9. This structure can precisely control the expansion and contraction of the movable parts 10, ensuring uniform and stable support for the corrugated pipe and effectively preventing deformation of the corrugated pipe during cutting.

[0027] Furthermore, the multiple movable parts 10 are also provided with cutting grooves 21, which correspond to the cutting blades in the cutting module 13. The cutting grooves 21 provide a precise cutting path for the cutting blades, ensuring that the cutting blades can accurately act on the predetermined position when cutting the corrugated pipe, avoiding collisions or interference between the cutting blades and the movable parts 10, improving the cutting accuracy and safety, and also extending the service life of the cutting blades and the movable parts 10.

[0028] Furthermore, a pair of connecting rods 22 are symmetrically arranged between adjacent movable parts 10. The connecting rods 22 have an arc-shaped structure. One end of the connecting rod 22 is fixedly installed on the end face of one of the movable parts 10, and the other end is movably inserted into the other movable part 10. A spring 23 is also sleeved on the connecting rod 22. The combination of the connecting rod 22 and the spring 23 enhances the connection stability between the movable parts 10. During the expansion or contraction of the movable parts 10, the connecting rod 22 can transmit the force, making the movement of the movable parts 10 more coordinated.

[0029] Example 2

[0030] This embodiment is an improvement on embodiment 1, specifically as follows:

[0031] Please see Figure 4The support tube 7 has scale lines 24 on its wall and a limiting plate 25 is movably fitted on it. The limiting plate 25 is threaded with a positioning bolt 26. The scale lines 24 are used to visually display the depth of the support tube 7 inserted into the corrugated tube. With the limiting plate 25 and the positioning bolt 26, the limiting plate 25 can be adjusted to the corresponding scale position and fixed by the positioning bolt 26 according to the required length of the corrugated tube before cutting. During the cutting process, when the end of the corrugated tube touches the limiting plate 25, the cutting length can be accurately limited without the need for tedious marking operations in advance, which greatly improves the cutting efficiency.

[0032] Working principle:

[0033] First, according to the required length of the corrugated pipe to be cut, the limiting plate 25 is adjusted to a suitable position on the support tube 7 via the scale line 24 and fixed with the positioning bolt 26. Then, one end of the corrugated pipe is placed on the three-jaw chuck 4 and clamped. The stepper motor 5 is started to make the three-jaw chuck 4 drive the corrugated pipe to rotate. At the same time, the support tube 7 is inserted from the other end of the corrugated pipe. The servo motor is started to drive the first bevel gear 17 to rotate. The second bevel gear 18 causes the screw 19 to rotate, driving the screw sleeve 20 and the movable part 10 to expand outward and support the corrugated pipe cutting part from the inside. The telescopic cylinder 12 is started, and the cutting module 13 descends to cut the corrugated pipe. During the process, the support plate 14 can rise under the action of the electric push rod 15 to provide auxiliary support. The cutting blade cuts along the knife groove 21 on the movable part 10 to ensure cutting accuracy. The connecting rod 22 and spring 23 between adjacent movable parts 10 ensure coordinated and stable movement. The movable seat 3 can be adjusted in position via the electric slide rail to adapt to corrugated pipes of different lengths.

[0034] The entire equipment, through the coordinated work of its components, effectively solves the problem of easy deformation during corrugated pipe cutting, thereby improving cutting efficiency and quality.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A corrugated pipe cutting device, comprising a base (1) and a cutting assembly (2) mounted on the base (1), characterized in that, A movable seat (3) is provided on one side of the cutting component (2) on the base (1). The movable seat (3) is movably set by an electric slide rail. A three-jaw chuck (4) is installed on the movable seat (3). The three-jaw chuck (4) is rotatably set and driven by a stepper motor (5) set inside the movable seat (3). A fixing plate (6) is also fixedly set on the other side of the cutting component (2) on the base (1). A horizontally set support tube (7) is fixedly set on the fixing plate (6). The end of the support tube (7) extends to the bottom of the cutting component (2) and is equipped with an expansion mechanism (8). The expansion mechanism (8) includes a hollow cylinder (9) fixedly installed at the end of the support tube (7), multiple movable parts (10) arranged in an array outside the hollow cylinder (9), and a driving component that drives the multiple movable parts (10) to move synchronously toward or away from the axis of the hollow cylinder (9). The movable parts (10) are arc-shaped structures.

2. The corrugated pipe cutting equipment according to claim 1, characterized in that, The cutting assembly (2) includes a fixed frame (11) fixedly mounted on the base (1), a telescopic cylinder (12) mounted on the fixed frame (11), and a cutting module (13) mounted on the telescopic end of the telescopic cylinder (12).

3. The corrugated pipe cutting equipment according to claim 2, characterized in that, A support plate (14) is also provided on the base (1) below the cutting module (13), and the support plate (14) is movably set by an electric push rod (15).

4. The corrugated pipe cutting equipment according to claim 1, characterized in that, The drive assembly includes a fixed ring (16) fixedly installed inside the hollow cylinder (9), a first bevel gear (17) rotatably installed inside the fixed ring (16), and a plurality of second bevel gears (18) meshing around the first bevel gear (17). The first bevel gear (17) is driven by a servo motor installed inside the hollow cylinder (9). A screw (19) is fixedly installed on the shaft of the second bevel gear (18). The screw (19) is rotatably installed on the fixed ring (16), and a screw sleeve (20) is threaded on the screw (19). The screw sleeve (20) movably penetrates the side wall of the hollow cylinder (9) and is fixedly connected to the movable part (10).

5. The corrugated pipe cutting equipment according to claim 2, characterized in that, Multiple movable parts (10) are also provided with cutting grooves (21), which correspond to the cutting blades in the cutting module (13).

6. The corrugated pipe cutting equipment according to claim 5, characterized in that, A pair of connecting rods (22) are symmetrically arranged between adjacent movable parts (10). The connecting rods (22) have an arc-shaped structure. One end of the connecting rod (22) is fixedly installed on the end face of one of the movable parts (10), and the other end is movably inserted into the other movable part (10). A spring (23) is also sleeved on the connecting rod (22).

7. The corrugated pipe cutting equipment according to claim 1, characterized in that, The support tube (7) has a scale line (24) on its wall and a limiting plate (25) is movably sleeved on the support tube (7). The limiting plate (25) is threaded with a positioning bolt (26).