Cutting device for PE cable conduit production

Abstract

This application relates to the field of cable conduit cutting, and provides a cutting device for PE cable conduit production, including a cutting assembly, an outer abutment assembly, and an inner support assembly. The cutting assembly includes a cutting tool and a tool holder, with the cutting tool mounted on the tool holder. The cutting tool is used to move circumferentially around the cable conduit to cut it. The outer abutment assembly is connected to the tool holder and moves circumferentially with the cutting tool. The outer abutment assembly is used to abut against the periphery of the pre-cut line of the cable conduit before the cutting tool contacts the cable conduit. The inner support assembly includes an inner support rotation drive unit and an inner support unit. The inner support unit is used to abut against the inner wall of the cable conduit. The inner support rotation drive unit is connected to the inner support unit and is used to drive the inner support unit to rotate, so that the inner support unit corresponds in position to the outer abutment assembly. This application solves the problem of low precision in traditional PE cable conduit cutting methods.

Description

Technical Field

[0001] This application relates to the field of cable conduit cutting, and more particularly to a cutting device for the production of PE cable conduits. Background Technology

[0002] In the cable conduit manufacturing industry, with continuous social development, the demand for cable conduits is increasing, placing higher requirements on their processing precision and efficiency. Cable conduit cutting is a crucial step in the manufacturing process; precise and efficient cutting ensures the quality of the cable conduits, meets the needs of different projects, and is of great significance for improving the overall quality and efficiency of the project. Good cutting technology can also reduce cable conduit wear, lower production costs, and promote the sustainable development of the cable conduit manufacturing industry.

[0003] In traditional PE cable conduit production and cutting operations, the cable conduit is prone to vibration during cutting, affecting cutting accuracy. This vibration is particularly pronounced the moment the cutter contacts the cable conduit. Furthermore, due to the susceptibility of PE cable conduits to compressive deformation, the area to be cut may deform and vibrate upon cut, further impacting accuracy. While clamping and limiting the cable conduit during cutting can reduce vibration, the contact area between the cable conduit and the cutter constantly changes, and the clamped area remains a distance from the area to be cut. Therefore, it is difficult to effectively prevent vibration at the cut area. Conversely, if the clamped area is too close to the cut area, deformation is increased, leading to greater cutting errors. Summary of the Invention

[0004] To address the issue of low precision in traditional PE cable conduit cutting methods, this application provides a cutting device for PE cable conduit production.

[0005] The cutting device for PE cable conduit production provided in this application adopts the following technical solution: A cutting device for producing PE cable conduits, comprising: A cutting assembly includes a cutting tool and a cutting tool holder, the cutting tool being disposed on the cutting tool holder, the cutting tool being used to make circumferential movements around the cable conduit to cut the cable conduit; An outer abutment assembly is connected to the tool holder and moves circumferentially following the tool. The outer abutment assembly is used to abut against the periphery of the pre-cut line of the cable conduit before the tool contacts the cable conduit. The inner support assembly includes an inner support rotation drive unit and an inner support unit, wherein the inner support unit is used to abut against the inner wall of the cable conduit; the inner support rotation drive unit is connected to the inner support unit and is used to drive the inner support unit to rotate so that the inner support unit corresponds to the position of the outer abutment assembly.

[0006] By adopting the above technical solution, the outer abutment component can contact the outer wall of the cable conduit before the cutter enters it, pre-stabilizing the part of the cable conduit to be cut. This effectively suppresses the violent vibration of the cable conduit at the moment of contact with the cutter, significantly improving the stability and accuracy of the cutting process. Secondly, the outer abutment component and the inner support unit can simultaneously stabilize the cable conduit from the inside and outside, maintaining symmetrical force application to prevent deformation of the cable conduit. Furthermore, both the outer abutment component and the inner support unit can move circumferentially synchronously with the cutter, ensuring the stability of the part of the cable conduit being cut.

[0007] Optionally, the outer abutment assembly includes an outer abutment drive unit and two outer abutment plates; The external abutment drive unit is disposed on the tool holder; the external abutment drive unit is connected to the two external abutment plates and is used to drive the two external abutment plates to move relative to the tool during the tool feed or retraction process, so that the two external abutment plates are always in contact with the outer wall of the cable conduit; The two outer abutment plates are respectively disposed on opposite sides of the cutting tool.

[0008] By adopting the above technical solution, symmetrical pressure is applied to both sides of the cut part of the cable conduit, forming a uniform constraint force, which further prevents the cable conduit from deflecting or deforming during the cutting process. It is especially suitable for PE cable conduits with high flexibility, effectively eliminating uneven deformation caused by unilateral force and improving the flatness and perpendicularity of the cut surface.

[0009] Optionally, the outer abutment assembly further includes a damping shock absorber, which is connected to both the outer abutment drive unit and the outer abutment plate.

[0010] By adopting the above technical solutions, the damping shock absorber can effectively absorb the vibration and impact generated during the cutting process, reduce the impact force fluctuation between the outer back plate and the cable conduit, improve the vibration control capability, and avoid local deformation of the cable conduit caused by instantaneous impact, thereby further improving the cutting stability and cutting quality.

[0011] Optionally, the inner support unit includes a mounting plate, a slider, and an arc-shaped support plate; The number of sliders is two, and both sliders are slidably mounted on the mounting plate; The two ends of the arc-shaped support plate are respectively connected to the two sliders, and the middle part of the arc-shaped support plate is used to support the inner wall of the cable conduit; the arc-shaped support plate is configured to deform under the squeezing action of the inner wall of the cable conduit to change the contact area between the arc-shaped support plate and the inner wall of the cable conduit.

[0012] By adopting the above technical solution, the arc-shaped support plate automatically adjusts its actual contact area with the cable conduit based on the pressure of the inner wall of the cable conduit, so as to achieve adaptive support. Especially when there are slight fluctuations in the diameter of the cable conduit or thermal expansion and contraction due to temperature changes, it can still maintain a good inner wall fit, maintain the overall support rigidity of the cable conduit, and avoid the inner wall from collapsing or local dents during the cutting process.

[0013] Optionally, the inner support unit further includes an elastic element, which is connected to the two sliders respectively.

[0014] By adopting the above technical solution, when the contact area between the arc-shaped support plate and the cable conduit increases due to the pressure of the cable conduit, the pressure of the cable conduit on the arc-shaped support plate needs to overcome the restoring force of the arc-shaped support plate and the elastic element. Conversely, when the contact area between the arc-shaped support plate and the cable conduit increases to a suitable range, the supporting force of the arc-shaped support plate on the cable conduit is also large enough to prevent the cable conduit from denting. At the same time, the elastic element can also assist the arc-shaped support plate in resetting.

[0015] Optionally, the inner support assembly further includes an inner support movement drive unit; the inner support rotation drive unit and the inner support unit are both disposed in the inner support movement drive unit, and the inner support movement drive unit is used to drive the inner support rotation drive unit and the inner support unit to move along the axial direction of the cable conduit.

[0016] By adopting the above technical solution, the precise position adjustment of the inner support unit along the axial direction of the cable conduit can be achieved. In conjunction with the inner support rotation drive unit, the inner support unit can be accurately aligned with the section to be cut, ensuring that the inner support and the outer abutment components work together. Moreover, it can be quickly adjusted in cable conduit cutting tasks of different lengths, improving the automation level and applicability of the equipment.

[0017] Optionally, the cutting device for producing PE cable conduits further includes two sets of clamping assemblies, which are respectively located on opposite sides of the cutting assembly; The clamping assembly includes a clamping mounting frame, a limiting rod, and two sets of clamping units. Each clamping unit includes a clamping drive, a clamping seat, and a clamping block. The clamping seat is slidably mounted on the clamping mounting frame, and the clamping block is mounted on the clamping seat. The clamping block has a connecting portion for mounting clamping blocks of other specifications. The clamping drive is connected to the clamping seat and is used to drive the clamping seat to move closer to or away from the other clamping assembly. The limiting rod is arranged along the interval direction of the two clamping seats of the two sets of clamping assemblies and connected to the clamping mounting frame. The limiting rod is slidably connected to the two clamping seats of the two sets of clamping assemblies.

[0018] By adopting the above technical solution, the axial clamping and positioning of the entire cable conduit is achieved. At the same time, the design of replaceable clamping blocks supports the adaptation of various cable conduit specifications, improving the flexibility of the equipment. The limiting rod structure ensures the stable sliding of the clamping seat during the clamping process, prevents deviation and torsion, ensures the uniform distribution of clamping force, and assists the external abutment and internal support system to form a composite stable structure of "internal and external coordinated fixation", which significantly suppresses the axial movement and circumferential vibration of the cable conduit during the cutting process.

[0019] Optionally, the cutting assembly includes a cutting mounting bracket, a rotary disk, a cutting rotation drive unit, a cutting feed unit, a tool holder, and the cutting tool; The rotating disk is rotatably mounted on the cutting mounting frame; the cutting rotation drive unit is connected to the rotating disk and is used to drive the rotating disk to rotate; The cutting feed unit is located on the rotary table, and is connected to the cutter holder, and is used to drive the cutter holder to move closer to or away from the cable conduit.

[0020] By adopting the above technical solution, the cutting rotary drive unit drives the tool to make continuous circumferential motion, and the cutting feed unit achieves smooth advancement, ensuring the consistency of the cutting path and the continuity of the cut. The cutting of the cable conduit is achieved by the movement of the tool, which can reduce the vibration of the cable conduit.

[0021] Optionally, the cutting device for producing PE cable conduits further includes a support assembly, which includes a support wheel and a support plate. The support wheel is used to support and transport the cable conduit. The support plate is located on the side of the support wheel away from the cutting assembly.

[0022] By adopting the above technical solution, the support wheel provides load-bearing capacity during the cable conduit transportation process, effectively reducing transportation resistance; the support plate is set on the back side of the support wheel to provide a smooth transition path for subsequent transportation and discharge, ensuring smooth output of the cable conduit after cutting and avoiding posture deviation or collision damage.

[0023] Optionally, the support assembly further includes a lifting unit, which is connected to the support wheel and used to drive the support wheel to rise and fall; the end of the support plate near the support wheel is hinged to the lifting unit and rises and falls with the support wheel.

[0024] By adopting the above technical solution, the height of the support wheel can be flexibly adjusted to meet the placement requirements of cable conduits of different diameters, eliminate the risk of cutting deviation caused by cable conduit position deviation, and improve the automation adaptability and operational safety of the entire device.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting the outer support component and the inner support component to work together, the cable conduit is pre-supported both inside and outside before the cutter enters, which effectively suppresses the vibration and deformation of the PE cable conduit at the beginning of the cutting stage, significantly improves the cutting accuracy and cut quality, and solves the core pain point of "vibration as soon as the cutter contacts" in traditional cutting. 2. By adopting structures such as adaptive deformation arc support plates, elastic components, and damping shock absorbers, flexible adaptation to cable conduits of different specifications and conditions (such as temperature changes and diameter fluctuations) is achieved, enhancing the versatility, stability, and mechanical durability of the device and meeting the needs of efficient production in multiple scenarios; 3. By integrating clamping components, supporting components, and lifting and adjustment functions, a complete integrated structure for cable conduit feeding, positioning, support, cutting, and output is formed, which greatly improves the automation level and ease of operation of the equipment, reduces the risk of manual intervention, and promotes the development of PE cable conduit production and cutting operations towards intelligence and standardization. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural schematic diagram of the cutting device for producing PE cable conduits provided in this application; Figure 2 This is a schematic diagram of the cutting assembly of the cutting device for producing PE cable conduits provided in this application; Figure 3 This is a partial structural diagram of the outer support component and the cutting component of the cutting device for producing PE cable conduits provided in this application; Figure 4 This is a schematic diagram of the internal support assembly of the cutting device for producing PE cable conduits provided in this application; Figure 5 This application provides Figure 4 Enlarged view of point A in the middle; Figure 6 This is a front view of the cable conduit and internal support assembly provided in this application.

[0027] Explanation of reference numerals in the attached figures: 1. Cutting assembly; 11. Cutting mounting bracket; 12. Rotary disk; 121. Gear ring; 13. Cutting rotary drive unit; 131. First rotary drive motor; 132. Planetary gear; 14. Cutting feed unit; 15. Tool holder; 16. Cutting tool; 2. Support components; 21. Support wheels; 22. Support frame; 23. Support plate; 24. Lifting unit; 3. Clamping assembly; 31. Clamping drive component; 32. Clamping base; 33. Clamping block; 331. Connecting part; 34. Limiting rod; 4. External abutment assembly; 41. External abutment drive unit; 42. External abutment plate; 43. Damping shock absorber; 5. Internal support assembly; 51. Internal support rotation drive unit; 511. Rotating tube; 512. Telescopic component; 52. Internal support movement drive unit; 521. Housing; 522. Moving wheel system; 53. Internal support unit; 531. Mounting plate; 532. Arc-shaped support plate; 533. Elastic component; 534. Slider; 200. Cable conduit. Detailed Implementation

[0028] The following is in conjunction with the appendix Figures 1 to 6 This application will be described in further detail.

[0029] Example 1

[0030] like Figures 1 to 2 As shown in the figure, this application discloses a cutting device for the production of PE cable conduits, including a cutting component 1, a supporting component 2 and two sets of clamping components 3.

[0031] Specifically, the cutting assembly 1 includes a cutting mounting frame 11, a rotating disk 12, a cutting rotation drive unit 13, a cutting feed unit 14, a tool holder 15, and a cutting tool 16. The cutting mounting frame 11 serves as the support platform for the entire cutting mechanism. The rotating disk 12 is mounted at the center of the cutting mounting frame 11 and can rotate freely relative to the cutting mounting frame 11. The cutting rotation drive unit 13 is mounted on the cutting mounting frame 11 and is used to drive the rotating disk 12 to rotate. In this embodiment, a toothed ring 121 is sleeved on the outer periphery of the rotating disk 12. The cutting rotation drive unit 13 includes a first rotation drive motor 131 and multiple planetary gears 132. The multiple planetary gears 132 are rotatably mounted on the cutting mounting frame 11, and the multiple planetary gears 132 mesh with the toothed ring 121 on the rotating disk 12. The first rotation drive motor 131 is connected to one of the planetary gears 132. By driving the planetary gear 132 to rotate through the first rotation drive motor 131, the rotating disk 12 can be driven to rotate.

[0032] The middle part of the cutter holder 15 is rotatably connected to the rotating disk 12. The cutting feed unit 14 can specifically be a cylinder, with both ends of the cutting feed unit 14 hinged to the rotating disk 12 and one end of the cutter holder 15, respectively; the cutter 16 is rotatably mounted on the other end of the cutter holder 15. By extending and retracting the cutting feed unit 14, the cutter holder 15 is rotated, thereby allowing the cutter 16 to move closer to or away from the cable conduit 200. The cutter holder 15 is also equipped with a cutting drive motor (not shown in the figure) connected to the cutter 16, which drives the cutter 16 to rotate in order to cut the cable conduit 200.

[0033] When it is necessary to cut the cable conduit 200, the cutting feed unit 14 drives the cutter 16 to cut into the cable conduit 200, while the cutting rotation drive unit 13 drives the rotating disk 12 to rotate slowly, so that the cutter 16 moves circumferentially to complete the cutting of the cable conduit 200.

[0034] The cutting tool 16 is disc-shaped and can be made of carbide or ceramic. Its sharp edge is used to cut into the cable conduit 200.

[0035] Two sets of clamping components 3 are symmetrically arranged on opposite sides of the cutting component 1 to clamp and limit the cable conduit 200 during the cutting process, preventing it from moving around during cutting. Each set of clamping components 3 includes a clamping mounting frame, a limiting rod 34, and two sets of clamping units.

[0036] Two sets of clamping units are arranged vertically at intervals. Each clamping unit includes a clamping drive 31, a clamping seat 32, a clamping block 33, and a limiting rod 34. The clamping drive 31 can be a cylinder vertically mounted on the clamping mounting frame; the clamping seat 32 is slidably mounted on the clamping mounting frame and connected to the clamping drive 31; the clamping block 33 is detachably mounted on the clamping seat 32. Before cutting, the two clamping drives 31 of the two clamping units drive the two clamping seats 32 to move closer together, thereby clamping and limiting the cable conduit 200.

[0037] The limiting rod 34 is arranged along the spacing direction of the clamping seats 32 of the two sets of clamping assemblies 3. The limiting rod 34 is mounted on the clamping mounting frame, passes through the two clamping seats 32, and is slidably connected to the clamping seats 32. The limiting rod 34 is used to limit the clamping seats 32 to ensure that the clamping seats 32 do not wobble during the clamping action.

[0038] Each clamping base 32 can be equipped with one or more clamping blocks 33 of different specifications to meet the clamping requirements of cable conduits 200 of different specifications. For example, a matching clamping block 33 can be directly installed on the clamping base 32, and the clamping block 33 is also provided with a connecting part 331 for installing clamping blocks 33 of other specifications. The connecting part 331 can be a screw hole. When it is necessary to clamp cable conduits 200 of other specifications, clamping blocks 33 of other specifications can be installed on the clamping block 33. Specifically, the connection of clamping blocks 33 of different specifications can be achieved by bolts and threaded connection with the connecting part 331.

[0039] The support assembly 2 is located on one side of the cutting assembly 1 and the two sets of clamping assemblies 3, and is used to receive the cut cable conduit 200. The support assembly 2 includes a support wheel 21, a support frame 22, and a support plate 23. The support wheel 21 is mounted on the support frame 22 via a pivot, and its surface is made of wear-resistant rubber or polyurethane to reduce frictional resistance with the cable conduit 200. The support plate 23 is located on the side of the support wheel 21 away from the cutting assembly 1, corresponding to the position of the support wheel 21, and is used to receive the cut cable conduit 200 for subsequent processing.

[0040] Furthermore, the support assembly 2 is equipped with a lifting unit 24, which is a vertically arranged pneumatic or hydraulic cylinder. Its piston rod is connected to the support frame 22 of the support wheel 21, driving the support wheel 21 to move vertically up and down to accommodate cable conduits 200 of different specifications. The end of the support plate 23 near the support wheel 21 is connected to the support frame 22, allowing the support plate 23 to automatically adjust its tilt angle as the lifting unit 24 moves. This structure enables the device to automatically adjust the support height according to the diameter of the cable conduit 200 to be cut, eliminating the risk of cutting offset due to differences in cable conduit 200 height, and achieving adaptive bearing for various specifications of cable conduits 200.

[0041] In this embodiment, the cutting assembly 1 achieves stable cutting of the cable conduit 200 through the coordinated control of rotation drive and feed drive; the clamping assembly 3 controls the movement of the clamping seat 32 through the clamping drive 31 to reliably clamp the cable conduit 200, while the limiting rod 34 ensures precise alignment of the clamping action; the supporting assembly 2 achieves height adaptation through a lifting and adjusting structure to ensure stable support of the cable conduit 200. The coordinated operation of these three components gives the device excellent automation capabilities, effectively reducing reliance on manual intervention.

[0042] Example 2

[0043] like Figures 3 to 6 As shown, the difference between this embodiment and embodiment 1 is that it also includes an outer abutment component 4 and an inner support component 5 to solve the technical problem that the cable conduit 200 is prone to violent shaking and elastic deformation when it comes into contact with the cutter 16.

[0044] Specifically, the outer abutment assembly 4 shares the same rotation system with the cutting assembly 1. It is mounted on the tool holder 15 and rotates circumferentially with the tool holder 15. The outer abutment assembly 4 includes an outer abutment drive unit 41 and two outer abutment plates 42. Both outer abutment plates 42 are slidably mounted on the tool holder 15 and are respectively located on opposite sides of the cutter 16 in a symmetrical arrangement. The side of the outer abutment plate 42 closest to the cable conduit 200 has a contact surface that can be used to fit against the outer wall of the cable conduit 200. The outer abutment drive unit 41 can be a cylinder mounted on the tool holder 15, which drives the two outer abutment plates 42 to move closer to or further away from the cable conduit 200.

[0045] When the cable conduit 200 needs to be cut, the tool holder 15 moves and drives the outer abutment assembly 4 and the tool 16 to gradually approach the cable conduit 200. Before the tool 16 contacts the cable conduit 200, the distance between the outer abutment plate 42 and the cable conduit 200 is always less than the distance between the tool 16 and the cable conduit 200. This allows the outer abutment plate 42 to abut against the outer wall of the cable conduit 200 before the cutting is performed, helping to pre-stabilize the part of the cable conduit 200 to be cut.

[0046] When the cutting tool 16 moves with the tool holder 15 to cut into the cable conduit 200, the outer abutment drive unit 41 can drive the outer abutment plate 42 to move relative to the tool holder 15, so that the outer abutment plate 42 always abuts against the outer wall of the cable conduit 200, thereby continuously stabilizing the cable conduit 200.

[0047] Figure 3 As shown, the outer abutment component 4 is further equipped with a damping shock absorber 43, which is located between the outer abutment drive unit 41 and the outer abutment plate 42, thereby playing a buffering and shock absorption role.

[0048] Figures 4 to 6 As shown, the inner support assembly 5 is used to support the inner wall of the cable conduit 200 to prevent local dents in the cable conduit 200 caused by external pressure during the cutting process, thereby affecting the cut quality. The inner support assembly 5 includes an inner support rotation drive unit 51, an inner support movement drive unit 52, and an inner support unit 53.

[0049] The internal support movement drive unit 52 includes a housing 521 and a moving wheel system 522 disposed on the housing 521. The moving wheel system 522 enables the housing 521 to move along the axial direction of the cable conduit 200. The structure and movement principle of the moving wheel system 522 can be referred to the wheel system design of the pipeline robot.

[0050] An internal support rotary drive unit 51 is mounted on the housing 521. The internal support rotary drive unit 51 includes a second rotary drive motor, a rotary tube 511, and a telescopic member 512. The rotary tube 511 is rotatably mounted on the housing 521. The second rotary drive motor is located inside the housing 521 and connected to the rotary tube 511. The telescopic member 512 is partially located inside the housing 521 and is connected to both the rotary tube 511 and the internal support unit 53. The telescopic member 512 is used to extend and retract along the radial direction of the cable conduit 200, thereby driving the internal support unit 53 to move, causing the internal support unit 53 to abut or disengage from the inner wall of the cable conduit 200. The second rotary drive motor drives the rotary tube 511 to rotate, so that when the tool 16 makes a circumferential movement, the internal support unit 53 can also make a circumferential movement accordingly. Specifically, the telescopic member 512 can be an electric push rod.

[0051] The inner support unit 53 includes a mounting plate 531, an arc-shaped support plate 532, an elastic element 533, and two sliders 534. The mounting plate 531 is connected to the telescopic element 512. The two sliders 534 are slidably mounted on the mounting plate 531. The two ends of the arc-shaped support plate 532 are respectively connected to the two sliders 534. The main body of the arc-shaped support plate 532 is an arc-shaped curved surface, and the central area is used to align with the inner wall of the cable conduit 200. The arc-shaped support plate 532 is made of a material with a certain deformation capacity, such as a plastic sheet. When it is not in contact with the cable conduit 200, it is in an initial state with the central part bulging outward, which facilitates the support of the cable conduit 200.

[0052] When the middle part of the arc-shaped support plate 532 abuts against the inner wall of the cable conduit 200, the arc-shaped support plate 532 elastically bends under the pressure of the inner wall of the cable conduit 200. Its actual contact area with the cable conduit 200 automatically adjusts with the inner wall pressure, achieving adaptive support. This characteristic allows the support area of ​​the arc-shaped support plate 532 on the cable conduit 200 to change according to the depth of the cutter 16 into the cable conduit 200. That is, the greater the cutting depth of the cutter 16, the larger the contact area between the cutter 16 and the cable conduit 200, and the larger the support area of ​​the arc-shaped support plate 532 on the cable conduit 200, which helps to improve the support effect. Furthermore, the arc-shaped support plate 532 has high adaptability to cable conduits 200 of different specifications, which can improve the fit between the arc-shaped support plate 532 and the inner wall of the cable conduit 200.

[0053] The elastic element 533 can be a spring. Both ends of the elastic element 533 are connected to two sliders 534 respectively. When the arc-shaped support plate 532 deforms and its contact area with the cable conduit 200 increases, the elastic element 533 applies a pulling force to the sliders 534, thereby preventing the arc-shaped support plate 532 from deforming. This ensures that the supporting force of the arc-shaped support plate 532 on the cable conduit 200 only needs to be large enough to cause the arc-shaped support plate 532 to deform via the elastic element 533, ensuring that the supporting force and supporting area of ​​the arc-shaped support plate 532 on the cable conduit 200 are within a suitable range.

[0054] In this embodiment, the inner support unit 53 and the outer abutment component 4 are positioned opposite each other. That is, when cutting the cable conduit 200, the arc-shaped support plate 532 and the outer abutment plate 42 are located on the inner and outer sides of the cable conduit 200, respectively, and are close to the cutter 16. They can also move circumferentially like the cutter 16, thereby maintaining the stability of the cutting part of the cable conduit 200 and reducing vibration and deformation.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cutting device for producing PE cable conduits, characterized in that, include: The cutting assembly (1) includes a cutting tool (16) and a cutting tool holder (15). The cutting tool (16) is disposed on the cutting tool holder (15). The cutting tool (16) is used to make circumferential movements around the cable conduit (200) to cut the cable conduit (200). The outer abutment component (4) is connected to the tool holder (15) and moves circumferentially with the tool (16). The outer abutment component (4) is used to abut against the periphery of the pre-cut line of the cable conduit (200) before the tool (16) contacts the cable conduit (200). The inner support assembly (5) includes an inner support rotation drive unit (51) and an inner support unit (53), the inner support unit (53) being used to abut against the inner wall of the cable conduit (200); The inner support rotation drive unit (51) is connected to the inner support unit (53) and is used to drive the inner support unit (53) to rotate so that the inner support unit (53) corresponds to the position of the outer abutment component (4).

2. The cutting device for producing PE cable conduits according to claim 1, characterized in that: The outer abutment component (4) includes an outer abutment drive unit (41) and two outer abutment plates (42). The external abutment drive unit (41) is disposed on the tool holder (15); the external abutment drive unit (41) is connected to the two external abutment plates (42) and is used to drive the two external abutment plates (42) to move relative to the tool (16) during the feeding or retraction process of the tool (16) so that the two external abutment plates (42) are always in contact with the outer wall of the cable conduit (200); The two outer abutment plates (42) are respectively disposed on opposite sides of the cutting tool (16).

3. The cutting device for producing PE cable conduits according to claim 2, characterized in that: The outer abutment assembly (4) also includes a damping shock absorber (43), which is connected to the outer abutment drive unit (41) and the outer abutment plate (42) respectively.

4. The cutting device for producing PE cable conduits according to claim 1, characterized in that: The inner support unit (53) includes a mounting plate (531), a slider (534), and an arc-shaped support plate (532); There are two sliders (534), and both sliders (534) are slidably disposed on the mounting plate (531); The two ends of the arc-shaped support plate (532) are respectively connected to the two sliders (534), and the middle part of the arc-shaped support plate (532) is used to support the inner wall of the cable conduit (200). The arc-shaped support plate (532) is configured to deform under the squeezing action of the inner wall of the cable conduit (200) to change the contact area between the arc-shaped support plate (532) and the inner wall of the cable conduit (200).

5. The cutting device for producing PE cable conduits according to claim 4, characterized in that: The inner support unit (53) also includes an elastic element (533), which is connected to the two sliders (534) respectively.

6. The cutting device for producing PE cable conduits according to claim 1, characterized in that: The inner support assembly (5) further includes an inner support moving drive unit (52); the inner support rotating drive unit (51) and the inner support unit (53) are both located on the inner support moving drive unit (52), and the inner support moving drive unit (52) is used to drive the inner support rotating drive unit (51) and the inner support unit (53) to move along the axial direction of the cable conduit (200).

7. The cutting device for producing PE cable conduits according to claim 1, characterized in that: The cutting device for producing PE cable conduits also includes two sets of clamping components (3), which are respectively located on opposite sides of the cutting component (1); The clamping assembly (3) includes a clamping mounting frame, a limiting rod (34), and two sets of clamping units. Each clamping unit includes a clamping drive (31), a clamping seat (32), and a clamping block (33). The clamping seat (32) is slidably mounted on the clamping mounting frame, and the clamping block (33) is mounted on the clamping seat (32). The clamping block (33) is provided with a connecting part (331) for mounting clamping blocks (33) of other specifications. The clamping drive (31) is connected to the clamping seat (32) and is used to drive the clamping seat (32) to move closer to or away from the other clamping assembly (3). The limiting rod (34) is arranged along the interval direction of the two clamping seats (32) of the two sets of clamping assemblies (3) and connected to the clamping mounting frame. The limiting rod (34) is slidably connected to the two clamping seats (32) of the two sets of clamping assemblies (3).

8. The cutting device for producing PE cable conduits according to claim 1, characterized in that: The cutting assembly (1) includes a cutting mounting bracket (11), a rotating disk (12), a cutting rotation drive unit (13), a cutting feed unit (14), a tool holder (15), and the cutting tool (16). The rotating disk (12) is rotatably mounted on the cutting mounting frame (11); the cutting rotation drive unit (13) is connected to the rotating disk (12) and is used to drive the rotating disk (12) to rotate; The cutting feed unit (14) is located on the rotating disk (12). The cutting feed unit (14) is connected to the cutter holder (15) and is used to drive the cutter holder (15) to move closer to or away from the cable conduit (200).

9. The cutting device for producing PE cable conduits according to claim 1, characterized in that: The cutting device for producing PE cable conduits also includes a support assembly (2), which includes a support wheel (21) and a support plate (23). The support wheel (21) is used to support and transport the cable conduit (200). The support plate (23) is located on the side of the support wheel (21) away from the cutting assembly (1).

10. The cutting device for producing PE cable conduits according to claim 9, characterized in that: The support assembly (2) further includes a lifting unit (24), which is connected to the support wheel (21) and is used to drive the support wheel (21) to rise and fall; the end of the support plate (23) near the support wheel (21) is hinged to the lifting unit (24) and rises and falls with the support wheel (21).

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