Cable extrusion outer sheath defect detection device and detection method
By designing detection devices for clamping components and expansion components for cable outer sheath, the problem of uneven stress on the sheath in existing equipment is solved, and a higher detection accuracy and a more stable detection process are achieved.
Patent Information
- Application Number
- CN202510439262.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2025-05-30
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing cable outer sheath detection equipment causes uneven force to the outer sheath during the stretching process, which may cause deformation or damage, affecting the accuracy of the detection results. At the same time, the clamping and expansion mechanism of the equipment lacks flexible adjustment capabilities and is not widely applicable.
A cable extruded outer sheath defect detection device including a clamping assembly and an expansion assembly is designed to achieve stable clamping and uniform stretching of the outer sheath through a support box and a winding roller to ensure stable winding after detection.
Effectively prevent the outer sheath from deforming or damage during the inspection process, improve detection accuracy and reliability, improve the stability and automation of the inspection process, improve detection efficiency and reduce manual intervention.
Smart Images
Figure CN120064322A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of cable outer sheath detection, and specifically to a cable extrusion outer sheath defect detection device and a detection method. Background Art
[0002] The cable outer sheath is an important part of the cable structure, and its main function is to protect the internal conductor and insulation layer of the cable, preventing the influence of external environmental factors (such as moisture, chemical corrosion, mechanical damage, etc.) on the cable performance. During the cable extrusion molding and subsequent processing, the outer sheath may generate defects such as surface cracks, bubbles, uneven thickness, etc. due to factors such as uneven material flow, extrusion pressure fluctuation, or cooling shrinkage. In order to ensure the cable quality, it is usually necessary to detect the outer sheath for defects, and after the detection is completed, the qualified products are wound up for subsequent storage and transportation.
[0003] Existing cable outer sheath detection equipment often adopts a single-sided clamping method (such as hydraulic pliers or pneumatic chucks) during the stretching process. This method has a limited contact area between the clamping point and the sheath, resulting in local stress significantly higher than the material yield strength, leading to the formation of permanent indentations or microcracks, thus affecting the use effect and quality of the outer sheath. The single-sided force application causes the stretching direction of the sheath to deviate from the axis, resulting in deviation of the thickness detection value and affecting the accuracy of the detection result. At the same time, the clamping and expansion mechanisms of some existing equipment lack flexible adjustment capabilities and are mainly fixed for outer sheaths with specific diameters or wall thicknesses. For outer sheaths of different models or specifications, it is often necessary to replace the fixture or make additional adjustments. For example, when detecting a cable outer sheath with a larger diameter, it is necessary to replace the matching fixture to achieve fixation for detection, and when detecting a cable outer sheath with a smaller diameter, it is also necessary to replace a new fixture to achieve detection. In this way, not only the operation is cumbersome, but also the production efficiency is reduced. At the same time, when there are slight dimensional errors or material hardness differences in the cable outer sheath, the rigid clamping and expansion mechanisms may not be able to provide a uniform fixing force, resulting in loose clamping (inability to stably fix) or over-tight clamping (damaging the outer sheath). In addition, the traditional winding method directly winds up after detection, which may cause uneven winding or damage to the outer sheath surface due to improper tension control, affecting the subsequent use quality.
[0004] Therefore, the present application provides a cable extrusion outer sheath defect detection device and a detection method to achieve stable clamping of the outer sheath after detection, ensure uniform tension during the winding process, avoid causing additional damage to the outer sheath, and improve the winding quality and equipment applicability. Summary of the Invention
[0005] The purpose of the present invention is to provide a cable extrusion outer sheath defect detection device and a detection method to solve the problem in the above background art that the outer sheath is subjected to uneven force, which in turn causes deformation or damage and affects the accuracy of the detection result.
[0006] To achieve the above object, the present invention provides the following technical solutions: A cable extrusion outer sheath defect detection device and a detection method, including a support box, an installation platform is arranged on the support box, a support plate is arranged on one side of the installation platform, a support frame is arranged in the middle of the installation platform, a fixed side plate is arranged on one side of the support frame, a limiting frame is arranged on the fixed side plate, a winding roller is arranged in the limiting frame, an outer sheath body is wound on the winding roller, a guide rod is arranged on the surface of one end of the installation platform, and a sliding plate is slidably arranged on the guide rod; A clamping assembly, the clamping assembly includes a stretching rod arranged at one end of the sliding plate, a first sliding cylinder is arranged at one end of the stretching rod, one end of the stretching rod penetrates through the first sliding cylinder, a contact disc is arranged at one end of the stretching rod, and a plurality of groups of first deflection arms are rotatably arranged on the first sliding cylinder; An expansion assembly, the expansion assembly includes a rotating disc arranged at one end of the contact disc, a plurality of groups of limiting cylinders are arranged on the rotating disc, a moving arm is slidably arranged in the limiting cylinder, and a contact arc plate is arranged at one end of the moving arm.
[0007] Preferably, the clamping assembly further includes a second deflection arm rotatably arranged on the first deflection arm, a second sliding cylinder is rotatably arranged at one end of the second deflection arm, the contact disc is arranged at one end of the second sliding cylinder, a second connecting plate is arranged at one end of the first sliding cylinder, a first connecting plate is arranged at one end of the second sliding cylinder, mounting grooves are opened on both the first connecting plate and the second connecting plate, the first connecting plate and the second connecting plate are perpendicularly arranged, a first elastic member is sleeved between the second sliding cylinder and the first sliding cylinder, one end of the first elastic member is arranged on one side of the first sliding cylinder, and the other end of the first elastic member is arranged on one side of the second sliding cylinder.
[0008] Preferably, the expansion assembly further includes a second moving rod arranged at one end of the moving arm, a plurality of groups of guide grooves are penetrated and opened on the surface of the rotating disc, the second moving rod is slidably arranged in the guide grooves, a sliding groove is opened at the center of the rotating disc, and a group of driving grooves are opened on the inner wall of the sliding groove.
[0009] Preferably, a first moving rod is slidably arranged in the sliding groove, a group of contact rods are arranged on the first moving rod, a plurality of groups of through grooves are penetrated and opened on the surface of the first moving rod, a plurality of groups of through grooves are also opened on the surface of the rotating disc, a limiting rod is slidably arranged in the through grooves, a second elastic member is sleeved on the limiting rod, one end of the second elastic member is arranged on the rotating disc, and the other end of the second elastic member is arranged on one side of the first moving rod.
[0010] Preferably, the driving groove is in a thread shape bent to one side, and the contact rod fits with the driving groove.
[0011] Preferably, a clamping ring is arranged on the first deflecting arm. A first contact groove is formed on the inner wall of the clamping ring, and the inner wall of the clamping ring is made of rubber.
[0012] Preferably, a plurality of groups of second contact grooves are formed on the surface of the contact arc plate, and the surface of the contact arc plate is also made of rubber.
[0013] Preferably, a pushing cylinder is arranged on one side of the guiding rod. A pushing plate is arranged at the output end of the pushing cylinder. One side of the pushing plate is connected to the sliding plate. One end of the sliding plate is provided with a stretching rod. A guiding roller is arranged on the mounting table, and one end of the stretching rod is slidably arranged on the guiding roller.
[0014] Preferably, a group of guiding arc plates are arranged on the surface of the supporting plate, and the guiding arc plates are in an arc shape deflected to one side.
[0015] A method for detecting defects in the outer sheath of a cable extrusion, applied to the cable extrusion outer sheath defect detection device of any one of the above, includes the following steps: S1. Outer sheath winding: After the defect detection of the outer sheath body is completed, it is guided by the guiding arc plate to enter the winding process along a set track. The arc-shaped structure of the guiding arc plate ensures the stable conveying direction of the outer sheath body; S2. Fixing of the outer sheath: Under the fixing action of the clamping assembly and the expanding assembly, the outer sheath body maintains a stable state; S3. Winding process: Start the winding mechanism, and drive the winding roller to drive the outer sheath body to wind. Since the outer sheath body is wound under the state of being clamped and fixed inside and outside; S4. Release the fixing and complete the winding: After winding to the set length, detach the wound outer sheath body and enter the subsequent storage or packaging process.
[0016] Compared with the prior art, the beneficial effects of the present invention are: The present invention supports the overall structure through a support box. The outer sheath body is wound around a winding roller and guided to a stretching mechanism by a guide rod and a sliding plate. The clamping assembly fixes the outer side of the outer sheath body through a first sliding cylinder and a first deflecting arm. At the same time, the expanding assembly internally supports the outer sheath body through a rotating disc, a limiting cylinder and a moving arm to ensure its stability during the stretching process. The pushing cylinder drives the sliding plate to move, so that the stretching rod acts on the guide roller, thereby realizing the stretching of the outer sheath body and finally completing the winding process after detection. Compared with the traditional stretching method of single-sided clamping, this device realizes the simultaneous internal and external clamping and fixing of the cable outer sheath body through the synergistic action of the clamping assembly and the expanding assembly, effectively preventing the deformation or damage of the outer sheath body during the stretching process, improving the detection accuracy and reliability. At the same time, the stability and automation degree of the detection process are improved, the detection efficiency is increased and the manual intervention is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a three-dimensional structural schematic diagram of the first state of the present invention; Figure 2 is a three-dimensional structural schematic diagram of the second state of the present invention; Figure 3 is a three-dimensional structural schematic diagram of the support plate of the present invention; Figure 4 is a structural schematic diagram of the clamping assembly of the present invention; Figure 5 is a three-dimensional structural schematic diagram of the first moving arm of the present invention; Figure 6 is a three-dimensional structural schematic diagram of a partial section of the clamping ring of the present invention; Figure 7 is a schematic diagram of the moving direction of the clamping ring of the present invention; Figure 8 is a three-dimensional structural schematic diagram of the expanding assembly of the present invention; Figure 9 is a three-dimensional structural schematic diagram of the rotating disc of the present invention; Figure 10 of the present invention Figure 9 is an enlarged schematic diagram at A in; Figure 11 is a partial section schematic diagram of the rotating disc of the present invention; Figure 12 is a schematic diagram of the moving direction of the contact arc plate of the present invention.
[0018] In the figure: 1. Support box; 2. Installation table; 3. Support plate; 4. Support frame; 5. Fixed side plate; 6. Restriction frame; 7. Winding roller; 8. Guide rod; 9. Sliding plate; 10. Pushing cylinder; 11. Pushing plate; 12. Guide roller; 13. Tensile rod; 14. First sliding cylinder; 15. First deflecting arm; 16. Second deflecting arm; 17. Second sliding cylinder; 18. Contact disc; 19. Clamping ring; 20. First contact groove; 21. First connecting plate; 22. Second connecting plate; 23. Installation groove; 24. First elastic member; 25. Rotating disc; 26. Restriction cylinder; 27. Moving arm; 28. Contact arc plate; 29. Second contact groove; 30. First moving rod; 31. Guide groove; 32. Second moving rod; 33. Through groove; 34. Restriction rod; 35. Second elastic member; 36. Contact rod; 37. Sliding groove; 38. Driving groove; 39. Guide arc plate; 40. Outer sheath body. Detailed implementation manners
[0019] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.
[0020] In order to enable those skilled in the art of this technology to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0021] Such as Figures 1 - 12As shown in the figure, the present application provides a cable extrusion outer sheath defect detection device and detection method, including: a support box 1, an installation table 2 is arranged on the support box 1, a support plate 3 is arranged on one side of the installation table 2, a support frame 4 is arranged in the middle of the installation table 2, a fixed side plate 5 is arranged on one side of the support frame 4, a limiting frame 6 is arranged on the fixed side plate 5, a winding roller 7 is arranged in the limiting frame 6, an outer sheath body 40 is wound on the winding roller 7, a guide rod 8 is arranged on the surface of one end of the installation table 2, a sliding plate 9 is slidably arranged on the guide rod 8, a pushing cylinder 10 is arranged on one side of the guide rod 8, an output end of the pushing cylinder 10 is provided with a pushing plate 11, one side of the pushing plate 11 is connected to the sliding plate 9, one end of the sliding plate 9 is provided with a stretching rod 13, a guide roller 12 is arranged on the installation table 2, and one end of the stretching rod 13 is slidably arranged on the guide roller 12. The device further includes: a clamping assembly, the clamping assembly includes a first sliding cylinder 14 arranged at one end of the stretching rod 13, one end of the stretching rod 13 penetrates through the first sliding cylinder 14, a contact disk 18 is arranged at one end of the stretching rod 13, and a plurality of groups of first deflection arms 15 are rotatably arranged on the first sliding cylinder 14; an expanding assembly, the expanding assembly includes a rotating disk 25 arranged at one end of the contact disk 18, a plurality of groups of limiting cylinders 26 are arranged on the rotating disk 25, a moving arm 27 is slidably arranged in the limiting cylinder 26, and a contact arc plate 28 is arranged at one end of the moving arm 27. In this embodiment: The overall structure is supported by the support box 1. The outer sheath body 40 is wound on the winding roller 7 and guided to the stretching mechanism by the guide rod 8 and the sliding plate 9. The clamping assembly fixes the outer side of the outer sheath body 40 through the first sliding cylinder 14 and the first deflection arms 15. At the same time, the expanding assembly internally supports the outer sheath body 40 through the rotating disk 25, the limiting cylinders 26 and the moving arms 27 to ensure its stability during the stretching process. The pushing cylinder 10 drives the sliding plate 9 to move, so that the stretching rod 13 acts on the guide roller 12, thereby realizing the stretching of the outer sheath body 40 and finally completing the winding process after detection. Compared with the traditional stretching method with unilateral clamping, this device realizes the simultaneous internal and external clamping and fixing of the cable outer sheath body 40 through the coordinated action of the clamping assembly and the expanding assembly, effectively preventing the outer sheath body 40 from deforming or being damaged during the stretching process, improving the detection accuracy and reliability. At the same time, the stability and automation degree of the detection process are improved, the detection efficiency is increased, and the manual intervention is reduced.
[0022] Specifically, as Figures 4 - 7As shown, the clamping assembly also includes a second deflection arm 16 rotatably arranged on the first deflection arm 15, a second sliding cylinder 17 is rotatably arranged on one end of the second deflection arm 16, a contact plate 18 is arranged on one end of the second sliding cylinder 17, a second connecting plate 22 is arranged on one end of the first sliding cylinder 14, a first connecting plate 21 is arranged on one end of the second sliding cylinder 17, a mounting groove 23 is provided on the first connecting plate 21 and the second connecting plate 22, the first connecting plate 21 and the second connecting plate 22 are vertically arranged, a first elastic member 24 is sleeved between the second sliding cylinder 17 and the first sliding cylinder 14, one end of the first elastic member 24 is arranged on one side of the first sliding cylinder 14, and the other end of the first elastic member 24 is arranged on one side of the second sliding cylinder 17; a clamping ring 19 is arranged on the first deflection arm 15, a first contact groove 20 is provided on the inner wall of the clamping ring 19, and the inner wall of the clamping ring 19 is rubber; In this embodiment: the outer sheath body 40 is initially clamped by the first sliding cylinder 14 and the first deflection arm 15, and the second deflection arm 16 arranged on the first deflection arm 15 is rotated to make the second sliding cylinder 17 move synchronously during the stretching process. A first elastic member 24 is sleeved between the second sliding cylinder 17 and the first sliding cylinder 14. The elastic member produces elastic action when subjected to force, so that the clamping assembly can adapt to outer sheath bodies 40 of different specifications, making the clamping force more uniform and maintaining a stable clamping force. The clamping ring 19 is arranged on the first deflection arm 15, and the first contact groove 20 on its inner wall can effectively increase the friction force, and the inner wall is made of rubber material, ensuring that a flexible contact is formed on the surface of the outer sheath body 40 during clamping to avoid damage; the applicability of the equipment and the stability of the detection process are improved, and it is ensured that the outer sheath body 40 is not prone to slippage or deformation during the stretching process.
[0023] Specifically, Figures 7 - 12 As shown, the expansion assembly also includes a second moving rod 32 arranged at one end of the moving arm 27, a plurality of guide grooves 31 are formed through the surface of the rotating disk 25, and the second moving rod 32 is slidably arranged in the guide groove 31, a sliding groove 37 is formed at the center of the rotating disk 25, and a group of driving grooves 38 are formed on the inner wall of the sliding groove 37; the first moving rod 30 is slidably arranged in the sliding groove 37, and a group of contact rods 36 are arranged on the first moving rod 30, a plurality of through grooves 33 are formed through the surface of the first moving rod 30, and a plurality of through grooves 33 are also formed on the surface of the rotating disk 25, and a limiting rod 34 is slidably arranged in the through groove 33, and a second elastic member 35 is sleeved on the limiting rod 34, one end of the second elastic member 35 is arranged on the rotating disk 25, and the other end of the second elastic member 35 is arranged on one side of the first moving rod 30; the driving groove 38 is a threaded shape bent to one side, and the contact rod 36 is fitted with the driving groove 38; a plurality of second contact grooves 29 are formed on the surface of the contact arc plate 28, and the surface of the contact arc plate 28 is also made of rubber; In this embodiment: By pulling the limiting rod 34 to separate it from the through groove 33 on the surface of the rotating disk 25, at this time, the first moving rod 30 is pushed, so that the first moving rod 30 drives the contact rod 36 to contact the driving groove 38, thereby driving the rotating disk 25 to rotate. During the rotation of the rotating disk 25, the guiding groove 31 can drive the second moving rod 32 to move. At this time, the moving arm 27 can move in the limiting cylinder 26. At this time, multiple groups of moving arms 27 can be moved synchronously, thereby changing the distance between the contact arc plates 28, and further realizing the adaptability to outer sheath bodies 40 of different sizes. The surface of the contact arc plate 28 is made of rubber material, and multiple groups of second contact grooves 29 are provided to enhance the friction force during the support process, which not only ensures the fixing effect of the outer sheath body 40 but also avoids damaging its surface, improving the stability and applicability of the detection process.
[0024] Specifically, as Figures 1 - 3 shown, a set of guiding arc plates 39 are arranged on the surface of the support plate 3, and the guiding arc plates 39 are arcs deflected to one side; After the outer sheath body 40 is unrolled on the winding roller 7, it is guided by the guiding arc plate 39 to enter the subsequent stretching and detection processes along a set track. The arc structure of the guiding arc plate 39 can adjust the movement direction of the outer sheath body 40, avoiding the deviation or uneven force of the outer sheath body 40 caused by the direction deviation, so as to ensure its smooth entry into the clamping and expanding assembly; keeping its movement direction stable before entering the detection mechanism, reducing the error caused by swinging or deviation, and improving the detection accuracy.
[0025] A method for detecting defects in the extruded outer sheath of a cable, which is applied to the cable extruded outer sheath defect detection device according to any one of the above, includes the following steps: S1. Outer sheath winding: After the defect detection of the outer sheath body 40 is completed, it is guided by the guiding arc plate 39 to enter the winding process along a set track. The arc structure of the guiding arc plate 39 ensures the stable conveying direction of the outer sheath body 40, avoiding affecting the subsequent clamping and winding processes due to the deviation of the conveying path; S2. Fixing of the outer sheath: Under the fixing action of the clamping assembly and the expanding assembly, the outer sheath body 40 remains in a stable state; S3. Winding process: Start the winding mechanism, and drive the winding roller 7 to drive the outer sheath body 40 to wind. Since the outer sheath body 40 is wound under the state of being clamped and fixed inside and outside, it can ensure uniform tension during the winding process, avoiding wrinkles, deformation or damage caused by unilateral force; S4. Release the fixation and complete the winding: After winding to the set length, the wound outer sheath body 40 is detached and enters the subsequent storage or packaging process.
[0026] It ensures that the outer sheath 40 does not slip or deform during the winding process. The overall structure optimizes the winding quality, improves the applicability and automation of the equipment, ensures the quality of the outer sheath 40 after winding is stable, and meets the subsequent storage and use requirements.
[0027] The specific plan is: The outer sheath body 40 is initially clamped by the first sliding cylinder 14 and the first deflection arm 15, and the second deflection arm 16 arranged on the first deflection arm 15 is rotated to make the second sliding cylinder 17 move synchronously during the stretching process. A first elastic member 24 is sleeved between the second sliding cylinder 17 and the first sliding cylinder 14. The elastic member produces an elastic effect when subjected to force, so that the clamping assembly can adapt to outer sheath bodies 40 of different specifications, making the clamping force more uniform while maintaining a stable clamping force. The clamping ring 19 is arranged on the first deflection arm 15, and the first contact groove 20 on its inner wall can effectively increase the friction force. The inner wall is made of rubber material, ensuring that a flexible contact is formed on the surface of the outer sheath body 40 during clamping to avoid damage; the applicability of the equipment and the stability of the detection process are improved, ensuring that the outer sheath body 40 is not prone to slippage or deformation during the stretching process; By pulling the limiting rod 34, it is separated from the through groove 33 on the surface of the rotating disk 25, and at this time, the first moving rod 30 is pushed, so that the first moving rod 30 drives the contact rod 36 to contact the driving groove 38, thereby driving the rotating disk 25 to rotate. During the rotation of the rotating disk 25, the guide groove 31 can drive the second moving rod 32 to move, and at this time, the moving arm 27 can be moved in the limiting cylinder 26. At this time, multiple groups of moving arms 27 can be moved simultaneously, thereby changing the distance between the contact arc plates 28, thereby achieving adaptability to outer sheath bodies 40 of different sizes. The surface of the contact arc plate 28 is made of rubber material, and multiple groups of second contact grooves 29 are provided. The friction force is enhanced during the support process, which not only ensures the fixing effect of the outer sheath body 40, but also avoids damaging its surface, thereby improving the stability and applicability of the detection process; After the outer sheath body 40 is unrolled on the winding roller 7, it is guided by the guide arc plate 39 to enter the subsequent stretching and testing process along the set trajectory. The arc structure of the guide arc plate 39 can adjust the movement direction of the outer sheath body 40 to avoid the outer sheath body 40 from being offset or unevenly stressed due to direction deviation, thereby ensuring that it enters the clamping and expansion assembly smoothly; it can maintain a stable movement direction before entering the testing mechanism, reduce errors caused by swinging or offset, and improve the testing accuracy.
[0028] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is merely exemplary; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above, and they are not provided in detail for the sake of brevity.
[0029] The present invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A cable extrusion outer sheath defect detection device, comprising a support box (1), characterized in that: It also includes: a mounting platform (2) is arranged on the support box (1), a support plate (3) is arranged on one side of the mounting platform (2), a support frame (4) is arranged in the middle of the mounting platform (2), a fixed side plate (5) is arranged on one side of the support frame (4), a limiting frame (6) is arranged on the fixed side plate (5), a winding roller (7) is arranged inside the limiting frame (6), an outer sheath body (40) is wound around the winding roller (7), a guide rod (8) is arranged on the surface of one end of the mounting platform (2), and a sliding plate (9) is slidably arranged on the guide rod (8); A clamping assembly, the clamping assembly comprising a stretching rod (13) arranged at one end of the sliding plate (9), a first sliding cylinder (14) being arranged at one end of the stretching rod (13), one end of the stretching rod (13) passing through the first sliding cylinder (14), a contact plate (18) being arranged at one end of the stretching rod (13), and a plurality of first deflection arms (15) being rotatably arranged on the first sliding cylinder (14); An expansion assembly, the expansion assembly comprising a rotating disk (25) arranged at one end of the contact disk (18), a plurality of groups of limiting cylinders (26) being arranged on the rotating disk (25), a movable arm (27) being slidably arranged in the limiting cylinder (26), and a contact arc plate (28) being arranged at one end of the movable arm (27).
2. The cable extrusion outer sheath defect detection device according to claim 1 is characterized in that: The clamping assembly further comprises a second deflection arm (16) rotatably arranged on the first deflection arm (15); a second sliding cylinder (17) is rotatably arranged at one end of the second deflection arm (16); the contact plate (18) is arranged at one end of the second sliding cylinder (17); a second connecting plate (22) is arranged at one end of the first sliding cylinder (14); a first connecting plate (21) is arranged at one end of the second sliding cylinder (17); both the first connecting plate (21) and the second connecting plate (22) are provided with mounting grooves (23); the first connecting plate (21) and the second connecting plate (22) are arranged vertically; a first elastic member (24) is sleeved between the second sliding cylinder (17) and the first sliding cylinder (14); one end of the first elastic member (24) is arranged on one side of the first sliding cylinder (14); and the other end of the first elastic member (24) is arranged on one side of the second sliding cylinder (17).
3. The cable extrusion outer sheath defect detection device according to claim 1, characterized in that: The expansion assembly further comprises a second moving rod (32) arranged at one end of the moving arm (27); a plurality of guide grooves (31) are formed through the surface of the rotating disk (25); the second moving rod (32) is slidably arranged in the guide grooves (31); a sliding groove (37) is formed at the center of the rotating disk (25); and a group of driving grooves (38) are formed on the inner wall of the sliding groove (37).
4. The cable extrusion outer sheath defect detection device according to claim 3, characterized in that: A first moving rod (30) is slidably arranged in the sliding groove (37), a group of contact rods (36) are arranged on the first moving rod (30), a plurality of through grooves (33) are formed through the surface of the first moving rod (30), and a plurality of through grooves (33) are also formed on the surface of the rotating disk (25), a limiting rod (34) is slidably arranged in the through groove (33), a second elastic member (35) is sleeved on the limiting rod (34), one end of the second elastic member (35) is arranged on the rotating disk (25), and the other end of the second elastic member (35) is arranged on one side of the first moving rod (30).
5. The cable extrusion outer sheath defect detection device according to claim 4, characterized in that: The driving groove (38) is in the shape of a thread that bends toward one side, and the contact rod (36) fits in the driving groove (38).
6. The cable extrusion outer sheath defect detection device according to claim 2, characterized in that: A clamping ring (19) is provided on the first deflection arm (15), a first contact groove (20) is provided on the inner wall of the clamping ring (19), and the inner wall of the clamping ring (19) is made of rubber.
7. The cable extrusion outer sheath defect detection device according to claim 5, characterized in that: A plurality of groups of second contact grooves (29) are provided on the surface of the contact arc plate (28), and the surface of the contact arc plate (28) is also made of rubber.
8. The cable extrusion outer sheath defect detection device according to claim 1, characterized in that: A group of guide arc plates (39) are provided on the surface of the support plate (3), and the guide arc plates (39) are in the shape of an arc deflected to one side.
9. The cable extrusion outer sheath defect detection device according to claim 1, characterized in that: A pushing cylinder (10) is provided on one side of the guide rod (8), a pushing plate (11) is provided at the output end of the pushing cylinder (10), one side of the pushing plate (11) is connected to the sliding plate (9), a guide roller (12) is provided on the mounting platform (2), and one end of the stretching rod (13) is slidably provided on the guide roller (12).
10. A method for detecting defects in an extruded outer sheath of a cable, applied to a device for detecting defects in an extruded outer sheath of a cable as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Reeling up the outer sheath: after the outer sheath body (40) has been inspected for defects, it is guided by the guide arc plate (39) so that it enters the reeling process along a set trajectory. The arc structure of the guide arc plate (39) ensures that the conveying direction of the outer sheath body (40) is stable; S2. Fixing of the outer sheath: Under the fixing action of the clamping assembly and the expansion assembly, the outer sheath body (40) remains in a stable state; S3, winding process: starting the winding mechanism, driving the winding roller (7) to drive the outer sheath body (40) to be wound, and the outer sheath body (40) is wound in a state where the outer and inner parts are clamped and fixed; S4, releasing the fixation and completing the winding: after winding to a set length, the outer sheath body (40) that has been wound up is detached and enters a subsequent storage or packaging process.