Composite cable and apparatus for manufacturing the same

Abstract

This invention provides a composite cable and its preparation apparatus, relating to the field of composite cable technology. The composite cable and its preparation apparatus include a base and a conduit, disposed on the base and having a hollow structure, through which the wire core can pass for transport; and an inner winding reel assembly, rotatably mounted on the conduit, comprising multiple coaxially arranged inner winding reels, each inner winding reel having multiple first wire-passing holes along its circumference. The beneficial effects of this invention are: the wire core passes through the inside of the conduit, and simultaneously multiple inner wires pass through the inner winding reel assembly, while multiple outer wires pass through the outer winding reel assembly. The inner and outer winding reel assemblies rotate synchronously in opposite directions, thereby simultaneously winding the inner and outer wires around the outer surface of the wire core. The outer winding reel assembly is sleeved on the outside of the inner winding reel assembly, effectively reducing the size of the equipment, saving space, and simultaneously ensuring the tightness of the twisted insulation wires.

Description

Technical Field

[0001] This invention relates to the field of composite cable technology, specifically a composite cable and its preparation apparatus. Background Technology

[0002] A cable is a conductor made of one or more insulated conductors and an outer insulating protective layer, used to transmit electricity or information from one end to the other. Cables are typically made of multiple or groups of conductors (at least two conductors per group) twisted together to form a rope-like structure, with each group of conductors insulated from each other and twisted around a central core, and the entire structure covered by a highly insulating outer layer.

[0003] Cable insulation is generally formed by multiple processes of winding and mixing. For cables that require multiple layers of insulation sheathing, multiple sets of winding spools are needed to wind the outer side of the core step by step. Therefore, traditional production equipment is large, has many processes, and has a long production line, resulting in high investment costs, large factory area, and low space utilization. Summary of the Invention

[0004] The purpose of this invention is to provide a composite cable and its preparation apparatus, which aims to solve the problems in the prior art where multiple sets of winding spools are required to wind the outer side of the core of the cable, resulting in large-scale production equipment, numerous processes, and long production lines, leading to high investment costs, large factory areas, and low space utilization for cables that require multiple layers of insulation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: the composite cable and its preparation apparatus include a base, and further include:

[0006] The conduit is set on the base and has a hollow structure, allowing the wire core to pass through the conduit for transport.

[0007] The inner winding reel assembly is rotatably mounted on the wire tube and includes multiple coaxially arranged inner winding reels. Each inner winding reel has multiple first wire-passing holes opened along its circumference, so that multiple inner wires pass through the first wire-passing holes respectively. When the inner winding reel rotates, the inner wires are twisted together on the outer surface of the wire core.

[0008] The outer winding reel assembly is rotatably mounted on the outside of the inner winding reel. It includes multiple coaxially arranged outer winding reels, and the diameter of the outer winding reel is larger than that of the inner winding reel. Each outer winding reel has a second threading hole along its circumference, so that multiple outer wires pass through the second threading hole respectively. When the inner winding reel and the outer winding reel rotate synchronously, the outer wires can be twisted on the outer surface of the twisted inner wire.

[0009] A further technical solution of the present invention is that a twisting seat is provided on one side of the base, and a twisting hole is provided on the twisting seat. Two twisting seats are provided at intervals, so as to help the inner wire and the outer wire achieve tight twisting respectively.

[0010] A further technical solution of the present invention is that the inside of the stranding seat is a hollow structure, and a rotating shaft is rotatably installed inside. A turbine is fixedly installed on the rotating shaft, and multiple through holes of different sizes are evenly opened on the turbine along its circumference. A worm gear is installed on the turbine for transmission. When the turbine rotates, different through holes will correspond to stranding holes, which can accommodate cables of different thicknesses to pass through.

[0011] A further technical solution of the present invention is that the inner winding reel group includes three inner winding reels, which are spaced apart on the wire guide tube, and the first wire guide hole on each inner winding reel is arranged correspondingly to each other.

[0012] A further technical solution of the present invention is that the outer winding reel assembly includes two outer winding reels, the outer winding reels are ring-shaped and are sleeved on the outside of the inner winding reel, and the second threading holes on the two outer winding reels are arranged correspondingly to each other.

[0013] A further technical solution of the present invention is that the inner winding reel assembly and the outer winding reel assembly rotate in opposite directions.

[0014] A further technical solution of the present invention includes a driving mechanism, which includes a first driving component and a second driving component. The first driving component is used to drive the inner winding disc to rotate, and the second driving component is used to drive the outer winding disc to rotate.

[0015] A further technical solution of the present invention is that the first driving component includes a first transmission wheel group and a second transmission wheel group that are spaced apart along the length direction of the base. Two of each of the first and second transmission wheel groups are spaced apart along the width direction of the base. A first motor that drives the rotation of the first transmission wheel group is installed on the first transmission wheel group, so that the first and second transmission wheel groups can drive the inner winding reel to rotate.

[0016] A further technical solution of the present invention is that the second driving component includes a third transmission wheel group and a fourth transmission wheel group that are spaced apart along the length direction of the base. Two of each of the third and fourth transmission wheel groups are spaced apart along the width direction of the base. A second motor that drives the rotation of the fourth transmission wheel group is installed on the fourth transmission wheel group. The third and fourth transmission wheel groups are respectively connected to the outer winding reel, so that the third and fourth transmission wheel groups can drive the outer winding reel to rotate.

[0017] A further technical solution of the present invention is that both the inner wire and the outer wire are made of insulating material.

[0018] The beneficial effects of this invention are:

[0019] This composite cable and its preparation device involve a conductor passing through the inside of a conduit, with multiple inner wires passing through an inner winding reel and multiple outer wires passing through an outer winding reel. The inner and outer winding reels rotate synchronously in opposite directions, thereby simultaneously winding the inner and outer wires onto the outer surface of the conductor. The outer winding reel is fitted around the outer side of the inner winding reel, effectively reducing the size of the equipment, saving space, and ensuring the tightness of the twisted insulation wires. Attached Figure Description

[0020] Figure 1 This is a perspective view of a specific embodiment of the present invention.

[0021] Figure 2 This is a front view of a specific embodiment of the present invention.

[0022] Figure 3 This is an exploded view of a specific embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the structure of the inner winding disc in a specific embodiment of the present invention.

[0024] Figure 5 This is a schematic diagram of the structure of the outer winding reel in a specific embodiment of the present invention.

[0025] Figure 6 This is a schematic diagram of the structure of the hinge seat according to a specific embodiment of the present invention.

[0026] Figure 7 This is a schematic diagram of the second embodiment of the present invention.

[0027] Figure 8 This is an exploded schematic diagram of the hinge seat according to the second embodiment of the present invention.

[0028] Figure 9 This is a cross-sectional view of the hinge seat according to the second embodiment of the present invention.

[0029] In the diagram: 10. Base; 11. First transmission wheel set; 12. Second transmission wheel set; 13. Third transmission wheel set; 14. Fourth transmission wheel set; 15. First motor; 16. Second motor; 20. Conduit; 30. Inner winding spool; 31. First wire hole; 40. Outer winding spool; 41. Second wire hole; 42. Connector; 50. Stranding seat; 50a. Stranding hole; 51. Shaft; 52. Turbine; 53. Through hole; 54. Worm gear; 55. Third motor; 60. Wire core; 61. Inner wire; 62. Outer wire. Detailed Implementation

[0030] For cables that require multiple layers of insulation sheathing, multiple sets of winding reels are needed to wind the outer side of the core step by step. Therefore, traditional production equipment is bulky, has many processes, and has a long production line, resulting in high investment costs, large factory area, and low space utilization. In order to solve this technical problem;

[0031] like Figure 1-6 As shown, a composite cable preparation apparatus is used to wind the inner wire 61 and outer wire 62 of the insulating material around the outer surface of the core 60. For ease of understanding, the inner wire 61, outer wire 62 and core 60 are used as the application scenarios of this preparation apparatus.

[0032] The composite cable manufacturing apparatus includes a base 10, a hollow conduit 20, an inner winding reel assembly, and an outer winding reel assembly. The wire core 60 passes through the inside of the conduit 20, while multiple inner wires 61 pass through the inner winding reel assembly and multiple outer wires 62 pass through the outer winding reel assembly. The inner and outer winding reel assemblies rotate synchronously, thereby simultaneously winding the inner wires 61 and outer wires 62 around the outer surface of the wire core 60. The base 10 is also equipped with a drive mechanism to drive the inner and outer winding reel assemblies to rotate synchronously. It also includes a stranding seat 50, which not only ensures the transmission of the cable but also ensures the tightness of the twisting of the insulated wires.

[0033] In this embodiment, there are two stranding seats 50, but in other embodiments, there may be four, six or even more. At the same time, the number of winding coils is the same as the number of stranding seats.

[0034] Back Figure 1 and Figure 2 As shown, two stranding seats 50 are located on one side of the inner winding reel assembly and are spaced apart. The stranding seats 50 are provided with stranding holes 50a to ensure that the stranded cable passes through. The stranding seat 50 closer to the inner winding reel assembly is fixed to the inner winding reel 30 by a fixing post 501, and the other stranding seat 50 is fixedly connected to the preparation device. This allows the inner wire 61 and the outer wire 62 to be stranded at different positions of the inner wire 61, avoiding tangling and improving the quality of stranding.

[0035] refer to Figure 1 , Figure 3 and Figure 4 The conduit 20 is set above the base 10 and is arranged along the length of the base 10. After the wire core 60 is released from the wire coil, it passes through the inside of the conduit 20. After the insulated wire is twisted on the wire core 60, it passes out from the twisting seat 50.

[0036] like Figure 4As shown, the inner winding reel assembly includes three inner winding reels 30 fixedly installed on the outside of the conduit 20. The three inner winding reels 30 are coaxially spaced, and each inner winding reel 30 has a first wire-passing hole 31 along its circumference. The first wire-passing holes 31 on each inner winding reel 30 are arranged correspondingly to each other, so that multiple inner wires 61 can pass through the first wire-passing holes 31 respectively, and finally pass through the twisting seat 50 near the inner winding reel 30 to transmit the inner wires 61. When the inner winding reel 30 rotates, the inner wires 61 near the twisting seat 50 can be twisted onto the outer surface of the wire core 60. After the twisted cable passes through the twisting seat 50, it passes through the twisting seat 50 away from the inner winding reel 30.

[0037] It should be noted that in other modified embodiments, the number of inner winding reels 30 may be 4, 6 or even more, depending on the length of the production line and the requirements for the stability of the insulated wire transmission. This embodiment does not limit the number of inner winding reels 30.

[0038] refer to Figure 3 and Figure 5 As shown, the outer winding reel assembly includes two spaced-apart outer winding reels 40, which are connected together by a connector 42. In this embodiment, the connector 42 is columnar, but it can also be a plate-like structure. The outer winding reel 40 has an annular structure, sleeved outside the inner winding reel 30, and is coaxially arranged with the inner winding reel 30 to ensure stable transmission of the insulated wire. Second wire-passing holes 41 are evenly arranged along the circumference of the outer winding reel 40, and the two outer winding reels... The second wire holes 41 on the outer winding reel 40 are arranged correspondingly to each other, so that multiple outer wires 62 can pass through the second wire holes 41 respectively, and finally pass through the twisting seat 50 on the side away from the inner winding reel 30 to realize the delivery of the outer wires 62. When the outer winding reel 40 rotates, the outer wires 62 near the twisting seat 50 can be twisted, and the outer surface of the inner wire 61 twisted on the core 60 is completed. Finally, the inner wires 61 and the outer wires 62 are twisted together on the outer surface of the core 60 in sequence.

[0039] It should be emphasized that, in other modified embodiments, the number of outer winding reels 40 may be 4, 6 or even more, depending on the length of the production line and the stability requirements of the insulated wire transmission. This embodiment does not limit the number of outer winding reels 40.

[0040] The drive mechanism includes a first drive assembly and a second drive assembly. The first drive assembly is used to drive the inner winding disc to rotate, and the second drive assembly is used to drive the outer winding disc to rotate.

[0041] refer to Figure 3The first drive assembly includes a first transmission wheel set 11 and a second transmission wheel set 12 spaced apart along the length of the base 10. Two of each of the first transmission wheel sets 11 and the second transmission wheel set 12 are spaced apart along the width of the base 10. A first motor 15 is mounted on the first transmission wheel set 11 to drive its rotation. The first transmission wheel set 11 and the second transmission wheel set 12 are respectively connected to two inner winding discs 30 near one side, so that the first transmission wheel set 11 and the second transmission wheel set 12 can drive the inner winding discs 30 to rotate.

[0042] Continue to refer to Figure 3 The second drive component is located on one side of the first drive component, and the position of the first drive component is higher than that of the second drive component. When the diameter of the outer winding disk 40 is larger than the diameter of the inner winding disk 30, the first drive component and the second drive component can still drive the outer winding disk 40 and the inner winding disk 30 to rotate simultaneously.

[0043] The second drive assembly includes a third transmission wheel set 13 and a fourth transmission wheel set 14 spaced apart along the length of the base 10. Two of each of the third transmission wheel sets 13 and the fourth transmission wheel set 14 are spaced apart along the width of the base 10. A second motor 16 is mounted on the fourth transmission wheel set 14 to drive its rotation. The third transmission wheel set 13 and the fourth transmission wheel set 14 are respectively connected to two outer winding reels 40, so that the third transmission wheel set 13 and the fourth transmission wheel set 14 can drive the outer winding reels 40 to rotate.

[0044] It is particularly important to emphasize that the inner winding spool 30 and the outer winding spool 40 rotate in opposite directions, so that the core 60 can be twisted more tightly, ensuring the insulation of the cable. In this embodiment, the inner winding spool 30 rotates clockwise and the outer winding spool 40 rotates counterclockwise. In other modified embodiments, the inner winding spool 30 can rotate counterclockwise and the outer winding spool 40 can rotate clockwise.

[0045] During the production process on the production line, the thickness of the insulating wires used may vary, and even more insulating wires may be twisted together. Therefore, the diameter of the cable passing through the twisting hole 50a will be larger. In order to enable the twisting seat 50 to adapt to cables of different diameters, the present invention also provides a second embodiment.

[0046] refer to Figure 7 , Figure 8 and Figure 9In this embodiment, the twisting seat 50 has a hollow structure inside, and a rotating shaft 51 is rotatably installed inside. A turbine 52 is fixedly installed on the rotating shaft 51, and multiple through holes 53 are evenly opened along its circumference on the turbine 52. The diameters of the through holes 53 are all different. When the turbine 52 rotates, different through holes 53 will correspond to the twisting holes 50a. It should be noted that the diameter of the twisting hole 50a is the same as the diameter of the largest through hole 53. Thus, the turbine 52 rotates according to the different diameters of the cables passing through it, and the through holes 53 that match the diameter of the cables correspond to the twisting holes 50a. While ensuring tight twisting and stable transmission, it can adapt to cables of different thicknesses. A worm gear 54 is also installed on the turbine 52 to drive its rotation. A third motor 55 is installed on the worm gear 54, and the third motor 55 can drive the turbine 52 to rotate through the worm gear 54.

[0047] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An apparatus for preparing composite cables, characterized in that, The composite cable includes a core (60) and inner wires (61) and outer wires (62) twisted on its outer surface, and the preparation device includes a base (10). The conduit (20) is set on the base (10) and has a hollow structure, allowing the wire core (60) to pass through the conduit (20); The inner winding reel assembly is rotatably mounted on the wire tube (20) and includes multiple coaxially arranged inner winding reels (30). Each inner winding reel (30) has multiple first wire holes (31) opened along its circumference, allowing multiple inner wires (61) to pass through the first wire holes (31) respectively. When the inner winding reel (30) rotates, the inner wires (61) are twisted on the outer surface of the wire core (60). The outer winding reel assembly is rotatably mounted on the outside of the inner winding reel (30), including multiple coaxially arranged outer winding reels (40), and the diameter of the outer winding reel (40) is larger than the diameter of the inner winding reel (30). Each outer winding reel (40) has a second wire-passing hole (41) along its circumference, so that multiple outer wires (62) pass through the second wire-passing hole (41) respectively. When the inner winding reel (30) and the outer winding reel (40) rotate synchronously, the outer wires (62) can be twisted on the outer surface of the twisted inner wires (61); The inner winding reel group and the outer winding reel group rotate synchronously, and the inner winding reel group and the outer winding reel group rotate in opposite directions. It also includes a drive mechanism, which includes a first drive component and a second drive component. The first drive component is used to drive the inner winding disc (30) to rotate, and the second drive component is used to drive the outer winding disc (40) to rotate. The second drive assembly is located on one side of the first drive assembly. The position of the first drive assembly is higher than that of the second drive assembly. When the diameter of the outer winding disc (40) is larger than that of the inner winding disc (30), the first drive assembly and the second drive assembly can drive the inner winding disc (30) and the outer winding disc (40) to rotate at the same time. A twisting seat (50) is provided on one side of the base (10). The twisting seat (50) has a twisting hole (50a). There are two twisting seats (50) spaced apart, so that the inner wire (61) and the outer wire (62) can be twisted tightly respectively. The twisting seat (50) near the inner winding disc (30) is fixed to the outer winding disc (40) by a fixing post. The other twisting seat (50) is fixedly connected to the preparation device. The twisting seat (50) has a hollow structure inside, and a rotating shaft (51) is rotatably installed inside. A turbine (52) is fixedly installed on the rotating shaft (51), and multiple through holes (53) of different sizes are evenly opened on the turbine (52) along its circumference. A worm gear (54) is installed on the turbine (52) for transmission. When the turbine (52) rotates, different through holes (53) correspond to the twisting holes (50a), which can accommodate cables of different thicknesses to pass through.

2. The apparatus for preparing a composite cable according to claim 1, characterized in that: The inner winding coil assembly includes three inner winding coils (30) that are spaced apart on the threading tube (20), and the first threading hole (31) on each inner winding coil (30) is arranged correspondingly to each other.

3. The apparatus for preparing a composite cable according to claim 1, characterized in that: The outer winding reel assembly includes two outer winding reels (40). The outer winding reels (40) are ring-shaped and are sleeved on the outside of the inner winding reel (30). The second threading holes (41) on the two outer winding reels (40) are arranged correspondingly to each other.

4. The apparatus for preparing a composite cable according to claim 1, characterized in that: The first drive assembly includes a first drive wheel set (11) and a second drive wheel set (12) spaced apart along the length of the base (10). There are two first drive wheel sets (11) and two second drive wheel sets (12) spaced apart along the width of the base (10). A first motor (15) is installed on the first drive wheel set (11) to drive its rotation, so that the first drive wheel set (11) and the second drive wheel set (12) can drive the inner winding disc (30) to rotate.

5. The apparatus for preparing a composite cable according to claim 1, characterized in that: The second drive assembly includes a third drive wheel set (13) and a fourth drive wheel set (14) spaced apart along the length of the base (10). There are two third drive wheel sets (13) and two fourth drive wheel sets (14) spaced apart along the width of the base (10). A second motor (16) is installed on the fourth drive wheel set (14) to drive its rotation. The third drive wheel set (13) and the fourth drive wheel set (14) are respectively connected to the outer winding reel (40) for transmission, so that the third drive wheel set (13) and the fourth drive wheel set (14) can drive the outer winding reel (40) to rotate.

6. The apparatus for preparing a composite cable according to claim 5, characterized in that: Both the inner wire (61) and the outer wire (62) are made of insulating material.

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