A cable production line and a cable

Abstract

This invention discloses a cable production line and a cable, belonging to the field of cable production. The cable production line includes a support frame and a base, and further includes: a rotating shaft rotatably connected to the support frame, a rotating frame fixedly connected to the rotating shaft, and an unwinding mechanism mounted on the rotating frame; a stranding disc rotatably connected to the support frame and connected to the rotating shaft, a tension detection mechanism mounted on the side of the support frame near the stranding disc, wherein a slip ring is mounted on the rotating frame, and a first connecting pipe and a second connecting pipe are connected between the tension detection mechanism and the unwinding mechanism via the slip ring, for adjusting the unwinding speed according to the tension of the core wire; a rectangular block fixedly connected to the base, a material cylinder connected to the base, and an adding component inside the material cylinder for adding talc powder from the material cylinder to the stranded core wire; this invention overcomes the problems of poor tension stability of the core wire during stranding, low production quality and efficiency, and high cable production costs.

Description

Technical Field

[0001] This invention relates to the field of cable manufacturing technology, and in particular to a cable production line and a cable. Background Technology

[0002] The cable manufacturing process is complex and requires multiple steps; it mainly includes two parts: core wire processing and overall forming. Overall forming involves twisting multiple sets of core wires to form a relatively large cable structure. To prevent the sheath from sticking to the core wires, talcum powder is usually added to the surface before wrapping. Then, the wrapped core wires are encased by extrusion or injection molding to protect the cable from external environmental influences.

[0003] Currently, during core wire stranding, the unwinding of the core wire reels is usually driven by the winding device, or by a motor driving multiple sets of core wire reels to unwind synchronously. Because it is difficult to ensure synchronization in the position and size of the core wire reels during unwinding, it is difficult to guarantee the same tension in each core wire during stranding. This easily leads to over-twisting, breakage, missing strands, loose strands, and scratches, affecting the cable's production quality. Furthermore, it also hinders subsequent core wire wrapping and injection molding. Additionally, when adding talcum powder, uneven distribution or improper dosage is common, affecting cable production efficiency, impacting cable surface quality, and causing significant talcum powder waste, thus increasing cable production costs. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of poor tension stability of core wires during stranding, low production quality and efficiency, and high cable production costs in the prior art, and to propose a cable production line and cable.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cable production line includes a support and a base, and further includes: a rotating shaft rotatably connected to the support, a rotating frame fixedly connected to the rotating shaft, and an unwinding mechanism mounted on the rotating frame; a stranding disc rotatably connected to the support and connected to the rotating shaft, a tension detection mechanism mounted on the side of the support near the stranding disc, wherein a slip ring is mounted on the rotating frame, and a first connecting pipe and a second connecting pipe are connected between the tension detection mechanism and the unwinding mechanism via the slip ring, for adjusting the unwinding speed according to the tension of the core wire; and a rectangular block fixedly connected to the base, a material cylinder connected to the base, and an adding component inside the material cylinder for adding talc powder from the material cylinder to the stranded core wire.

[0007] To facilitate unwinding of the core wire and ensure stability during unwinding, the unwinding mechanism preferably includes multiple sets of horizontal frames rotatably connected to a rotating frame. Speed ​​regulating discs are symmetrically fixedly connected to the horizontal frames, and core wire reels are rotatably connected between two sets of speed regulating discs on the same side. Telescopic components are fixedly connected to the core wire reels, wherein the telescopic components are connected to a first connecting pipe. When the rotating frame rotates, the horizontal frames are in a horizontal state, and the shaft end of the core wire reel extends into the interior of the speed regulating disc.

[0008] To facilitate adjustment of the unwinding speed of the core wire, a deceleration groove is further provided inside the speed regulating disc on the side near the telescopic member. The end of the telescopic member extends into the interior of the deceleration groove, and a deceleration plate that is slidably connected to the deceleration groove is fixedly connected to the end of the telescopic member. A first spring is fixedly connected inside the telescopic member, and the deceleration groove is connected to the shaft end of the core wire disc.

[0009] To facilitate monitoring of the tension of the core wire during stranding, preferably, the tension detection mechanism includes a toothed ring fixedly connected to the outer wall of the stranding disc. A limiting groove is formed on the side of the support near the stranding disc. The limiting groove includes a limiting part and a recessed part. The limiting part matches the stranding disc, and the recessed part matches the toothed ring. A rectangular groove is formed inside the stranding disc. A hole matching the core wire is formed on the side of the stranding disc near the rectangular groove. A third spring is symmetrically fixedly connected inside the rectangular groove. A wheel frame is fixedly connected to the side of the third springs that are close to each other. A guide wheel is rotatably connected to the wheel frame. An extension plate is fixedly connected to the wheel frame near the toothed ring. A compression member is fixedly connected between the extension plate and the rectangular groove. The surface of the guide wheel is arc-shaped and matches the core wire. The compression member is connected to a second connecting pipe.

[0010] To facilitate the stranding of the core wire and ensure the stability of the stranding, a drive motor is further included, which is fixedly connected to the bracket. The output end of the drive motor is connected to the rotating shaft. A positioning component is fixedly connected to the side of the bracket away from the drive motor. The positioning component has a hole that matches the core wire after stranding. A circular hole that matches the core wire is opened on the side of the rotating frame near the stranding disc. The position of the circular hole matches the position of the core wire disc. During processing, the core wire passes through the circular hole and the stranding disc in sequence from the core wire disc, and finally gathers and strands at the positioning component.

[0011] To facilitate the addition of talc powder to the surface of the stranded core wire, the addition assembly further includes a connecting shaft rotatably connected inside the material cylinder. A linkage gear is rotatably connected to the side of the bracket near the gear ring. The connecting shaft is connected to the shaft end of the linkage gear. A notch is provided on the side of the bracket near the gear ring. The linkage gear meshes with the gear ring through the notch. An addition groove communicating with the material cylinder is provided near the interior of the rectangular block. A protective component is fixedly connected inside the material cylinder. A spiral rod is rotatably connected to the side of the protective component near the addition groove. A bevel gear set meshing with the spiral rod and the connecting shaft is provided. The bevel gear set is located inside the protective component. The upper part of the protective component is inclined. The spiral rod is in contact with the inner wall of the material cylinder.

[0012] To facilitate the addition of talcum powder below the stranded core wire, a reciprocating screw is fixedly connected to one end of the spiral rod near the adding groove. A matching slider is provided on the reciprocating screw. A feeding plate is symmetrically rotated inside the adding groove. An arc-shaped hydraulic rod is connected between the feeding plate and the inner wall of the adding groove. A connecting piece is connected between the feeding plate and the slider. The center of the arc-shaped hydraulic rod and the axis of the feeding plate are on the same straight line. The feeding plate is located below the core wire.

[0013] To ensure the uniformity of talc powder on the core wire surface and facilitate talc powder recovery, a through hole is further included in the rectangular block. The through hole is connected to the addition groove. Multiple detectors and vibrating elements are arranged on the side of the rectangular block near the through hole. The vibrating element is equipped with a solenoid valve and is connected to an arc-shaped hydraulic rod through the solenoid valve. The solenoid valve is electrically connected to the detector. The end of the vibrating element is circular and faces the axis of the core wire. A recovery hole connected to the addition groove is opened at the bottom of the rectangular block. An inclined groove is opened inside the rectangular block. Multiple fourth springs are fixedly connected inside the inclined groove. The end of the fourth spring is fixedly connected to a return plate that is slidably connected to the inclined groove. The return plate is located below the core wire. The inclined groove is connected to the addition groove.

[0014] To ensure stability during core wire unwinding, a lubrication groove is further provided on the side of the speed regulating disc near the core wire reel shaft. Multiple sets of second springs are fixedly connected inside the lubrication groove. An arc-shaped plate that slides through the lubrication groove is fixedly connected to the end of the second spring. The arc-shaped plate and the lubrication groove are connected in a sealed manner, and the side of the arc-shaped plate near the second spring is connected to the arc-shaped hydraulic rod.

[0015] A cable includes multiple sets of metal cores, and further includes: an insulation layer disposed on the outside of the metal cores, wherein the multiple sets of metal cores and the insulation layer are spirally wound, and a talc powder layer is disposed on the outside of the wound insulation layer; a sheathing layer is spirally wound on the outside of the talc powder layer, an armor layer is disposed on the outside of the sheathing layer, and a protective sheath layer is disposed on the outside of the armor layer.

[0016] Compared with the prior art, the present invention provides a cable production line and a cable, which have the following beneficial effects:

[0017] 1. This cable production line can automatically unwind the core wires during cable winding through the unwinding mechanism. Under the action of the tension detection mechanism, the tension of the core wires during stranding is detected, and the unwinding speed of the core wire reel is adjusted in a timely manner according to the different tensions of each core wire to ensure the stability of the tension of each core wire during stranding. This avoids over-twisting, breakage, missing strands, loose strands, and scratches during stranding, thereby improving the stranding quality of the core wires and thus improving the production quality of the cable. It also facilitates the subsequent wrapping and injection molding of the core wires.

[0018] 2. This cable production line can drive the addition component through the tension detection mechanism to add talc powder to the surface of the core wire. At the same time, it drives the feeding plate to rotate up and down along the bottom of the core wire to add talc powder to the bottom of the core wire, thereby ensuring the uniformity of talc powder addition on the surface of the core wire and improving the production efficiency of the cable.

[0019] 3. This cable production line uses the reciprocating rotation of the feeding plate to drive the vibrating components, causing the core wire after adding talc powder to vibrate, thereby removing excess talc powder from the surface of the core wire. Under the action of the return plate, the excess talc powder is recycled to reduce the waste of talc powder and thus reduce the production cost of the cable.

[0020] 4. This cable production line can drive the arc plate to move back and forth along the lubrication groove by the reciprocating rotation of the feeding plate, so as to avoid the core wire reel having too much resistance when rotating, and thus make it easier to adjust the unwinding speed of the core wire reel.

[0021] The parts of this device not covered are the same as or can be implemented using existing technologies. This invention can overcome the problems of poor tension stability of core wires during stranding, low production quality and efficiency, and high cable production costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a cable production line proposed in this invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the structure of a cable production line proposed in this invention. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of a portion of the structure on the rotating frame in a cable production line according to the present invention;

[0025] Figure 4 This is a schematic diagram of the rectangular block and the material cylinder in a cable production line proposed in this invention;

[0026] Figure 5 This is a partial cross-sectional structural diagram of a support structure in a cable production line proposed in this invention;

[0027] Figure 6 This is a partial cross-sectional structural diagram of a horizontal frame and speed control panel in a cable production line proposed in this invention.

[0028] Figure 7 This is a schematic cross-sectional view of a rectangular block and a material cylinder in a cable production line proposed in this invention.

[0029] Figure 8 A cable production line proposed in this invention Figure 5 A schematic diagram of the structure of part A;

[0030] Figure 9 This is a schematic cross-sectional view of a cable proposed in this invention.

[0031] Figure 10 This is a flowchart of a cable production line proposed in this invention.

[0032] In the diagram: 1. Bracket; 2. Drive motor; 3. Rotating shaft; 4. Rotating frame; 5. Horizontal frame; 6. Speed ​​control disc; 61. Reduction groove; 62. Lubrication groove; 63. Reduction plate; 64. First spring; 65. Second spring; 66. Arc plate; 7. Core wire spool; 8. Telescopic component; 9. First connecting pipe; 10. Slip ring; 11. Round hole; 12. Limiting groove; 13. Wrapping disc; 14. Gear ring; 15. Notch; 16. Linkage gear; 17. Rectangular groove; 18. Third spring; 19. Wheel frame; 20. Guide wheel; 21. Extension plate; 22. Compression component; 23. Second connecting pipe; 24. Positioning component; 25. Base; 26. Rectangular block; 27. Through hole; 28. Adding groove; 29. ​​Material cylinder; 30. Connecting shaft; 31. Protective component; 32. Helical rod; 33. Bevel gear set; 34. Reciprocating screw; 35. Slider; 36. Feeding plate; 37. Connecting component; 38. Arc-shaped hydraulic rod; 39. Recovery hole; 40. Detector; 41. Vibrating component; 42. Solenoid valve; 43. Inclined groove; 44. Fourth spring; 45. Return plate; 46. Metal core; 47. Insulation layer; 48. Talc powder layer; 49. Coating layer; 50. Armor layer; 51. Sheath layer. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0034] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] Example 1:

[0036] Reference Figures 1-8 and Figure 10 A cable production line includes a support 1 and a base 25, and further includes: a rotating shaft 3 rotatably connected to the support 1, a rotating frame 4 fixedly connected to the rotating shaft 3, and an unwinding mechanism provided on the rotating frame 4; a stranding disc 13 rotatably connected to the support 1 and connected to the rotating shaft 3, a tension detection mechanism provided on the side of the support 1 near the stranding disc 13, wherein a slip ring 10 is provided on the rotating frame 4, and a first connecting pipe 9 and a second connecting pipe 23 are connected between the tension detection mechanism and the unwinding mechanism through the slip ring 10, for adjusting the unwinding speed according to the tension of the core wire; a rectangular block 26 fixedly connected to the base 25, a material cylinder 29 connected to the base 25, and an adding component provided inside the material cylinder 29 for adding talc powder from the material cylinder 29 to the stranded core wire.

[0037] The specific structure of the slip ring 10 can be referred to the technical solutions in the prior art, which can be known by those skilled in the art, and will not be described in detail here. The slip ring 10 is to ensure that the gas or liquid can be stably transported during the rotation process. In the production process of the cable, the core wire is mainly unwound by the winding device, which is the conventional method in the prior art.

[0038] Reference Figure 1 , Figure 3 and Figure 6The unwinding mechanism includes multiple sets of horizontal frames 5 rotatably connected to the rotating frame 4. Speed ​​regulating discs 6 are symmetrically fixedly connected to the horizontal frames 5. Core wire discs 7 are rotatably connected between two sets of speed regulating discs 6 on the same side. Telescopic members 8 are fixedly connected to the core wire discs 7. The telescopic members 8 are connected to the first connecting pipe 9. When the rotating frame 4 rotates, the horizontal frames 5 are in a horizontal state. The shaft end of the core wire disc 7 extends into the interior of the speed regulating disc 6. A deceleration groove 61 is provided on the side of the speed regulating disc 6 near the telescopic member 8. The end of the telescopic member 8 extends into the interior of the deceleration groove 61. A deceleration plate 63 that is slidably connected to the deceleration groove 61 is fixedly connected to the end of the telescopic member 8. A first spring 64 is fixedly connected inside the telescopic member 8. The deceleration groove 61 is connected to the shaft end of the core wire disc 7.

[0039] When the core wire is unwound, the core wire reel 7 is in a horizontal state to avoid the core wire from getting tangled. The connection between the speed reducer 63 and the shaft surface of the core wire reel 7 is similar to that of a brake. The size of the speed reducer 63 matches the size of the speed reduction groove 61. When the speed reducer 63 moves along the speed reduction groove 61 toward the shaft surface of the core wire reel 7, it will have a deceleration effect. The greater the pressure between the speed reducer 63 and the shaft surface of the core wire reel 7, the more obvious the deceleration effect.

[0040] Reference Figure 1 , Figure 2 , Figure 5 and Figure 8 The tension detection mechanism includes a toothed ring 14 fixedly connected to the outer wall of the twisting disc 13. A limiting groove 12 is opened on the side of the bracket 1 near the twisting disc 13. The limiting groove 12 includes a limiting part and a recessed part. The limiting part matches the twisting disc 13, and the recessed part matches the toothed ring 14. A rectangular groove 17 is opened inside the twisting disc 13. A hole matching the core wire is opened on the side of the twisting disc 13 near the rectangular groove 17. A third spring 18 is fixedly connected symmetrically inside the rectangular groove 17. A wheel frame 19 is fixedly connected on the side of the third spring 18 that is close to each other. A guide wheel 20 is rotatably connected on the wheel frame 19. An extension plate 21 is fixedly connected on the wheel frame 19 near the toothed ring 14. A compression member 22 is fixedly connected between the extension plate 21 and the rectangular groove 17. The surface of the guide wheel 20 is arc-shaped and matches the core wire. The compression member 22 is connected to the second connecting pipe 23.

[0041] During stranding, the core wire moves between the two sets of guide rollers 20. The arc shape on the surface of the guide rollers 20 can limit the movement of the core wire. If the tension of the core wire is large during stranding, the pressure between the core wire and the upper guide roller 20 increases, thereby causing the compression component 22 to extend outward and absorb the liquid inside the telescopic component 8. This reduces the pressure between the deceleration plate 63 and the axial surface of the core wire disc 7, thereby reducing the resistance encountered when the core wire disc 7 rotates and thus reducing the tension of the core wire during stranding. Conversely, if the tension of the core wire is small or in a relaxed state during stranding, the upper guide roller 20 will move downward under the action of the third spring 18, while the compression component 22 will contract inward. This process is the same as the above process but reversed, increasing the resistance encountered when the core wire disc 7 rotates until the core wire disc 7 has a certain tension. This ensures that the tension of multiple sets of core wires is relatively stable during stranding, avoiding over-twisting, breakage, missing strands, loose strands, and scratches, thus improving the stranding quality of the core wire.

[0042] Reference Figures 1-3 It also includes a drive motor 2 fixedly connected to the bracket 1. The output end of the drive motor 2 is connected to the rotating shaft 3. A positioning member 24 is fixedly connected to the side of the bracket 1 away from the drive motor 2. The positioning member 24 has a hole that matches the core wire after stranding. The rotating frame 4 has a round hole 11 that matches the core wire on the side close to the stranding disc 13. The position of the round hole 11 matches the position of the core wire disc 7. During processing, the core wire passes through the round hole 11 and the stranding disc 13 in sequence from the core wire disc 7, and finally gathers and strands at the positioning member 24.

[0043] When the core wires are twisted, the drive motor 2 is started to drive the rotating shaft 3 and the rotating frame 4 to rotate. Under the action of the cable winding device, the core wire reel 7 unwinds the core wires, so that multiple sets of core wires are twisted at the positioning piece 24. During this process, the horizontal frame 5 is always in a horizontal state. It should be explained that the stability of the horizontal frame 5 can be achieved by installing a counterweight at the bottom of the horizontal frame 5. This is a conventional method in the prior art, so it will not be described in detail.

[0044] Reference Figure 4 and Figure 7The addition component includes a connecting shaft 30 rotatably connected inside the material cylinder 29; a linkage gear 16 rotatably connected to the side of the bracket 1 near the gear ring 14; the connecting shaft 30 is connected to the shaft end of the linkage gear 16; a notch 15 is provided on the side of the bracket 1 near the gear ring 14; the linkage gear 16 meshes with the gear ring 14 through the notch 15; an addition groove 28 communicating with the material cylinder 29 is provided inside the rectangular block 26; a protective member 31 is fixedly connected inside the material cylinder 29; a spiral rod 32 is rotatably connected to the side of the protective member 31 near the addition groove 28; and a bevel gear set 33 meshing with the spiral rod 32 and the connecting shaft 30 is provided. In the process, the bevel gear set 33 is located inside the protective member 31, and the upper part of the protective member 31 is inclined. The spiral rod 32 is in contact with the inner wall of the material cylinder 29. The end of the spiral rod 32 near the addition groove 28 is fixedly connected to the reciprocating screw 34. The reciprocating screw 34 is provided with a matching slider 35. The inside of the addition groove 28 is symmetrically rotated and connected to the feeding plate 36. The feeding plate 36 and the inner wall of the addition groove 28 are connected by an arc-shaped hydraulic rod 38. The feeding plate 36 and the slider 35 are connected by a connecting piece 37. The center of the arc-shaped hydraulic rod 38 and the axis of the feeding plate 36 are on the same straight line. The feeding plate 36 is located below the core wire.

[0045] During the stranding process, the toothed ring 14 drives the linkage gear 16 to rotate, which in turn drives the screw rod 32 to rotate under the action of the connecting shaft 30 and the bevel gear set 33, adding talc powder from the material cylinder 29 to the core wire. The dimensions of the material cylinder 29 and the screw rod 32 can be adjusted according to the size of the core wire. During the addition of talc powder, the protective component 31 protects the bevel gear set 33, preventing the talc powder from affecting its operation and also preventing the bevel gear set 33 from contaminating the talc powder during operation. This process is based on the stranding of the core wire. The speed (usually the stranding speed is relatively fast, and the cable winding speed is also relatively fast to ensure the stability of the core wire stranding) automatically adjusts the talcum powder addition speed. During the falling process of the talcum powder, the reciprocating screw 34 will also rotate synchronously, thereby driving the slider 35 to move back and forth. Under the action of the connector 37, the feeding plate 36 will rotate up and down, thereby adding some of the talcum powder during the falling process to the bottom of the core wire to ensure the stability of the talcum powder addition on the core wire. The excess talcum powder will eventually fall to the bottom of the addition groove 28, thus completing the addition of talcum powder to the surface of the core wire.

[0046] Reference Figure 7It also includes a through hole 27 that penetrates the rectangular block 26 and is connected to the addition groove 28. On the side of the rectangular block 26 near the through hole 27, there are multiple sets of detectors 40 and a vibrating element 41. The vibrating element 41 is equipped with a solenoid valve 42 and is connected to the arc-shaped hydraulic rod 38 through the solenoid valve 42. The solenoid valve 42 is electrically connected to the detector 40. The end of the vibrating element 41 is circular and faces the axis of the core wire. The bottom of the rectangular block 26 is provided with a recycling hole 39 that is connected to the addition groove 28. The inside of the rectangular block 26 is provided with an inclined groove 43. Multiple sets of fourth springs 44 are fixedly connected inside the inclined groove 43. The end of the fourth spring 44 is fixedly connected to a return plate 45 that is slidably connected to the inclined groove 43. The return plate 45 is located below the core wire. The inclined groove 43 is connected to the addition groove 28.

[0047] It should be explained that the detector 40 is a visual inspection instrument that can detect the amount of talcum powder on the surface of the core wire. If there is a lot of talcum powder, the opening of the solenoid valve 42 will be larger, so that when the arc-shaped hydraulic rod 38 contracts, the liquid inside it can enter the vibrating element 41 more quickly. At this time, the vibration amplitude of the vibrating element 41 will be larger. If there is a little talcum powder, the vibration amplitude of the vibrating element 41 will be smaller, or even the core wire will not vibrate. This will make the talcum powder on the surface of the core wire evenly distributed. Since most of the talcum powder that falls off during vibration will fall onto the return plate 45, the weight on the return plate 45 will change when it falls. That is, when the talcum powder falls, under the action of the fourth spring 44, it will drive the return plate 45 to vibrate, thereby collecting the talcum powder into the addition tank 28. Finally, the talcum powder can be recycled and reused through the recycling hole 39.

[0048] Reference Figure 6 A lubrication groove 62 is provided on the side of the speed regulating disc 6 near the axial surface of the core wire disc 7. Multiple sets of second springs 65 are fixedly connected inside the lubrication groove 62. An arc-shaped plate 66 that is slidably connected to the end of the second spring 65 is fixedly connected to the lubrication groove 62. The arc-shaped plate 66 and the lubrication groove 62 are connected in a sealed manner, and the side of the arc-shaped plate 66 near the second spring 65 is connected to the arc-shaped hydraulic rod 38.

[0049] A smoothness detector can be installed on the side of the arc plate 66 near the axial surface of the core coil 7, and a valve body is installed between the lubrication groove 62 and the arc hydraulic rod 38. If the smoothness of the axial surface of the core coil 7 is good, the liquid compressed by the arc hydraulic rod 38 will not enter the lubrication groove 62, thereby reducing the waste of lubricating fluid. If the smoothness of the axial surface of the core coil 7 is poor (at which time the resistance encountered by the core coil 7 when rotating increases), the valve body is in the open state, and the worse the smoothness, the larger the opening of the valve body, so that the lubricating fluid in the lubrication groove 62 comes into contact with the axial surface of the core coil 7, thereby playing a lubricating role, so as to adjust the rotation speed of the core coil 7, reduce the wear of the axial surface of the core coil 7, and improve the service life of the core coil 7.

[0050] Example 2:

[0051] It is basically the same as Example 1, based on Example 1.

[0052] like Figure 9 A cable includes multiple sets of metal cores 46, and further includes: an insulation layer 47 disposed on the outside of the metal cores 46, the multiple sets of metal cores 46 and the insulation layer 47 being spirally wound, and a talc powder layer 48 being disposed on the outside of the wound insulation layer 47; a sheathing layer 49 being spirally wound on the outside of the talc powder layer 48, an armor layer 50 being disposed on the outside of the sheathing layer 49, and a sheathing layer 51 being disposed on the outside of the armor layer 50.

[0053] The metal core 46 is generally made of copper. The insulation layer 47 is set on the outside of the metal core 46 by injection molding or extrusion. Multiple sets of insulation layers 47 are twisted together in a spiral manner using the equipment in Example 1. After twisting, a layer of talcum powder is applied to the surface. Since talcum powder has the characteristics of lubrication, anti-sticking, fire resistance, and insulation, it can prevent the insulation layer 47 from sticking, lubricate, and isolate it, thus protecting its internal structure. The sheathing layer 49 is made of flame-retardant cotton, which can effectively improve the flame retardant effect of the cable and prevent the sheath layer 51 from sticking to the insulation layer 47 during injection molding. The armor layer 50 is made of metal to improve the strength of the cable and reduce the damage to the cable during use. The sheath layer 51 is set on the outside of the armor layer 50 by injection molding, which can not only protect the internal structure of the cable, but also improve the insulation and flame retardant effect of the cable.

[0054] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cable production line, comprising a support (1) and a base (25), characterized in that, Also includes: A rotating shaft (3) is rotatably connected to the bracket (1), and a rotating frame (4) is fixedly connected to the rotating shaft (3). A winding mechanism is provided on the rotating frame (4). A winch disc (13) is rotatably connected to the bracket (1) and connected to the rotating shaft (3). A tension detection mechanism is provided on the side of the bracket (1) near the winch disc (13). The rotating frame (4) is provided with a slip ring (10), and the tension detection mechanism and the unwinding mechanism are connected by a first connecting pipe (9) and a second connecting pipe (23) through the slip ring (10) to adjust the unwinding speed according to the tension of the core wire. A rectangular block (26) is fixedly connected to the base (25). A material cylinder (29) is connected to the base (25). An adding component is provided inside the material cylinder (29) for adding talc powder from the material cylinder (29) to the core wire after stranding. The unwinding mechanism includes multiple sets of horizontal frames (5) rotatably connected to the rotating frame (4). Speed ​​regulating discs (6) are symmetrically fixedly connected to the horizontal frames (5). Core wire discs (7) are rotatably connected between two sets of speed regulating discs (6) on the same side. Telescopic components (8) are fixedly connected to the core wire discs (7). The telescopic component (8) is connected to the first connecting pipe (9). When the rotating frame (4) is rotating, the horizontal frame (5) is in a horizontal state, and the shaft end of the core wire disc (7) extends into the interior of the speed regulating disc (6). The tension detection mechanism includes a toothed ring (14) fixedly connected to the outer wall of the twisting disc (13). The bracket (1) has a limiting groove (12) on the side near the twisting disc (13). The limiting groove (12) includes a limiting part and a recessed part. The limiting part matches the twisting disc (13), and the recessed part matches the toothed ring (14). A rectangular groove (17) is provided inside the twisting disc (13). A hole matching the core wire is provided on the side of the twisting disc (13) near the rectangular groove (17). A third spring (18) is fixedly connected symmetrically inside the rectangular groove (17). A wheel frame (19) is fixedly connected on the side of the third springs (18) that are close to each other. A guide wheel (20) is rotatably connected on the wheel frame (19). An extension plate (21) is fixedly connected on the wheel frame (19) near the toothed ring (14). A compression member (22) is fixedly connected between the extension plate (21) and the rectangular groove (17). The guide wheel (20) has an arc-shaped surface that matches the core wire, and the compression member (22) is connected to the second connecting pipe (23). The addition component includes a connecting shaft (30) rotatably connected inside the material cylinder (29). A linkage gear (16) is rotatably connected to the side of the bracket (1) near the gear ring (14). The connecting shaft (30) is connected to the shaft end of the linkage gear (16). A notch (15) is provided on the side of the bracket (1) near the gear ring (14). The linkage gear (16) meshes with the gear ring (14) through the notch (15). An addition groove (28) communicating with the material cylinder (29) is provided inside the rectangular block (26). A protective member (31) is fixedly connected inside the material cylinder (29). A spiral rod (32) is rotatably connected to the side of the protective member (31) near the addition groove (28). A bevel gear set (33) meshes with the spiral rod (32) and the connecting shaft (30). The bevel gear set (33) is located inside the protective member (31), the upper part of the protective member (31) is inclined, and the spiral rod (32) is in contact with the inner wall of the material cylinder (29).

2. The cable production line according to claim 1, characterized in that, The speed regulating disc (6) has a deceleration groove (61) on the side near the telescopic member (8) inside. The end of the telescopic member (8) extends into the interior of the deceleration groove (61), and the end of the telescopic member (8) is fixedly connected to a deceleration plate (63) that is slidably connected to the deceleration groove (61). The interior of the telescopic member (8) is fixedly connected to a first spring (64), and the deceleration groove (61) is connected to the shaft end of the core wire disc (7).

3. A cable production line according to claim 1, characterized in that, It also includes a drive motor (2) fixedly connected to the bracket (1), the output end of the drive motor (2) being connected to the rotating shaft (3), a positioning component (24) fixedly connected to the side of the bracket (1) away from the drive motor (2), the positioning component (24) having a hole matching the core wire after stranding, and a round hole (11) matching the core wire being opened on the side of the rotating frame (4) near the stranding disc (13). The position of the circular hole (11) matches the position of the core wire disc (7). During processing, the core wire passes through the circular hole (11) and the twisting disc (13) in sequence through the core wire disc (7), and finally gathers and twists at the positioning part (24).

4. A cable production line according to claim 1, characterized in that, The end of the screw rod (32) near the addition groove (28) is fixedly connected to a reciprocating screw (34), and a matching slider (35) is provided on the reciprocating screw (34). The inside of the addition groove (28) is symmetrically connected to a feeding plate (36). An arc-shaped hydraulic rod (38) is connected between the feeding plate (36) and the inner wall of the addition groove (28). A connector (37) is connected between the feeding plate (36) and the slider (35). The center of the arc-shaped hydraulic rod (38) and the axis of the feeding plate (36) are on the same straight line, and the feeding plate (36) is located below the core wire.

5. A cable production line according to claim 4, characterized in that, It also includes a through hole (27) formed in the rectangular block (26), the through hole (27) being connected to the adding groove (28), and multiple sets of detectors (40) and a vibrating element (41) being provided on the side of the rectangular block (26) near the through hole (27). The vibrating element (41) is provided with a solenoid valve (42), and the vibrating element (41) is connected to the arc-shaped hydraulic rod (38) through the solenoid valve (42). The solenoid valve (42) is electrically connected to the detector (40). The end of the vibrating element (41) is circular and faces the axis of the core wire. The bottom of the rectangular block (26) is provided with a recycling hole (39) that communicates with the addition groove (28). The interior of the rectangular block (26) is provided with an inclined groove (43). Multiple sets of fourth springs (44) are fixedly connected inside the inclined groove (43). The end of the fourth spring (44) is fixedly connected with a return plate (45) that is slidably connected to the inclined groove (43). The return plate (45) is located below the core wire. The inclined groove (43) communicates with the addition groove (28).

6. A cable production line according to claim 4, characterized in that, The speed regulating disc (6) has a lubrication groove (62) on one side near the axial surface of the core wire disc (7). Multiple sets of second springs (65) are fixedly connected inside the lubrication groove (62). The ends of the second springs (65) are fixedly connected to an arc plate (66) that is slidably connected to the lubrication groove (62). The arc plate (66) and the lubrication groove (62) are connected in a sealed manner, and the side of the arc plate (66) near the second spring (65) is connected to the arc hydraulic rod (38).

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