WO2014075397A1 - 一种扁平高速线缆的制备方法及其制品 - Google Patents

一种扁平高速线缆的制备方法及其制品 Download PDF

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Publication number
WO2014075397A1
WO2014075397A1 PCT/CN2013/070324 CN2013070324W WO2014075397A1 WO 2014075397 A1 WO2014075397 A1 WO 2014075397A1 CN 2013070324 W CN2013070324 W CN 2013070324W WO 2014075397 A1 WO2014075397 A1 WO 2014075397A1
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Prior art keywords
speed
cable
flat
wire
layer
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PCT/CN2013/070324
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English (en)
French (fr)
Inventor
邱德安
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领亚电子科技股份有限公司
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Publication of WO2014075397A1 publication Critical patent/WO2014075397A1/zh

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/02Stranding-up
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/18Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H01B11/20Cables having a multiplicity of coaxial lines

Definitions

  • the present invention relates to cable preparation techniques, and more particularly to a method of fabricating a flat high speed cable and a flat high speed cable embodying the method.
  • the flat high-speed cable on the market adopts a single wire direct twisting when the cable is twisted, and the single wire of the flat cable generates a stress reaction due to the twisting force of the twisted wire, resulting in flatness in the flat high-speed cable.
  • High-speed pairs (high-speed flat signal pairs) are prone to damage due to stress or poor electrical performance, such as delay differences and attenuation.
  • the flat high-speed cable prepared by the conventional method has poor stability, roundness cannot be ensured, and the softness is low, and the bending radius of the flat high-speed cable cannot be effectively reduced, and it is difficult to adapt to frequent bending and the like. Summary of the invention
  • an object of the present invention is to provide a method for preparing a flat high-speed cable, which is prepared by providing a branching device and a wire splicing device through steps of cable, branch, wire, and strand.
  • High-performance, high-quality flat high-speed cable The flat high-speed cable is prepared in a reliable, efficient, and low-cost manner.
  • Another object of the present invention is to provide a flat high-speed cable for implementing the above-described method for preparing a flat high-speed cable, which has the advantages of high performance, high quality, and the like.
  • a method for preparing a flat high-speed cable characterized in that it comprises the following steps:
  • the high-speed flat signal pairs of the double pairs are arranged along the center line of a circle, so that the cross-section of the high-speed flat signal pair is evenly and symmetrically distributed on the circle;
  • the circular flat high-speed cable is extruded through the cable extrusion die, and the flat high-speed cable is formed with a gap filling layer and an outer cover layer to ensure that the gap between the high-speed flat signal pairs is effectively filled and the appearance is made Get effective coverage;
  • the gap filling layer and the outer cover layer are PVC material, TPE material or the like; the outer cover layer has a thickness of 0.1 to 0.5 mm ; the semi-finished flat high-speed cable is formed by using the existing cable. Squeeze or fill the way;
  • a branch line a splitter device is arranged, and the semi-finished flat high-speed cable is divided into two mutually symmetrical cable lines along a center line of the circle described in step 1); the branching device is provided by a branch line eye
  • the mold is composed of a splitting blade for use with the splitting blade, and the distance between the splitting eye mold and the splitting eye mold is provided, and the outlet of the splitting eye mold is provided with a round transition and a gradually increasing annular concave
  • the semi-finished flat high-speed cable passes through the split eye mode, and is pulled forward by the device, and is divided into two symmetrical cables by a splitting blade;
  • a wire aligning device is arranged to face the mutually symmetric two halves of the cable, and merge into a circular cable that is symmetrically cut;
  • the wire aligning device comprises a wire passing mechanism and a line assembly mechanism, the line-passing mechanism is disposed on the rear side of the branching blade, and is composed of two sets of over-line guide wheels or bearings corresponding to the upper and lower sides, each group of three, maintaining the same level, and the position can be flexibly moved Adjusting; adjusting the position between the wire passing mechanism and the outlet of the split eye mold, so that the two halves of the cable passing through the splitting blade are pulled out at an angle of 30° to 70°, avoiding the angle too Small and damaged high-speed flat signal pairs or because the angle is too large, affecting the signal quality of the high-speed flat signal pair; the two halves of the cable are pulled through the upper and lower two sets of wire guides or bearings in the "S" type , to achieve positioning, to avoid twisting and flanging when rotating the twisted
  • Stranded wire Strand the round cable after the twisting wire, and rotate the twisted wire to make the two half wires
  • the cables are twisted and twisted to form a circular high-speed cable that is twisted together by two halves of the cable; the branching device in step 2) and the wire-splicing device in step 3) are disposed on the same holder Upper, and then installed on the fork winch or cage stranding machine; after the two symmetrical cable halves are joined, the stranded part of the fork winch or cage stranding machine is maintained, and the rotation and traction speed of the pay-off portion are maintained.
  • a certain ratio forms a lay length.
  • Post-processing After isolating the round flat high-speed cable formed by the two halves of the cable strand, the aluminum foil layer, the braid layer and the outer layer are sequentially coated, and finally extruded to obtain the final flat high-speed cable finished product. .
  • the high-speed flat signal pairs of the double pairs are 2 to 16 pairs, or even more.
  • the method has two forms, one is to form a gap filling layer and an outer covering layer for all high-speed flat signal pairs; the other is to form a gap filling layer and an outer covering layer only for the high-speed flat signal pair of the central portion, such as the central portion 2 pairs or 4 pairs of high speed flat signal pairs. Therefore, 1.2) in step 1) may be a high-speed flat signal pair in which zero pairs or double pairs are arranged; the arrangement of zero pairs is the first form described above, and the arrangement of the double pairs is the second form described above.
  • a flat high-speed cable for implementing the above method for preparing a flat high-speed cable characterized in that it comprises a core wire, an aluminum foil layer, a braid layer and an outer layer which are sequentially disposed from the inside to the outside; the core wire is composed of two The semi-core wire is twisted and twisted together; the core wire comprises a middle layer, and the middle layer is composed of a high-speed flat signal pair uniformly distributed in a cross section, a gap filling layer and an outer cover layer.
  • the core wire further includes an outer cladding layer including a pair of high speed flat signal pairs, the pair of high speed flat signal pairs being evenly arranged along an outer edge of the middle layer, The middle layer is coated at the center. That is, the flat high speed cable has two forms. One is: Only the middle layer, according to the required high-speed flat signal pairs, the total extrusion, so that the entire core has a gap filling layer and an outer cover layer, and then split and twist.
  • the second is: When the required high-speed flat signal pair is more than 4 pairs, it can also be in the form of a bet, that is, only the pair of high-speed flat signals of 2 pairs, 4 pairs or more in the middle are pushed out, so that The gap filling layer and the outer cover layer are then coated with other high-speed flat signal pairs; the core layer has only the middle layer to have the gap filling layer and the outer cover layer.
  • the semi-core wire is formed by arranging pairs of high-speed flat signals of a double-number pair along a center line of a circle such that the cross-section of the pair of high-speed flat signals is uniformly and symmetrically distributed on the circle, through the line
  • the cable is pushed out of the mold to push out the circular flat high-speed cable; in the middle of the flat high-speed cable, the high-speed flat signal of zero-pair or double-pair is continuously and symmetrically arranged along the center line of the circle
  • the flat high-speed cable is wrapped around the center, extruded through a cable extrusion die, and then symmetrically divided along the center line of the circle.
  • the high-speed flat signal pairs of the double pairs are 2 to 16 pairs, or even more.
  • the gap-filling layer and the outer cover layer are PVC material, TPE material or the like; the outer cover layer has a thickness of 0.1 to 0.5 mm.
  • the high speed flat signal pair is elliptical and includes two wires and a ground wire and is covered with an aluminum foil and a hot melt Mylar.
  • the wire is coated with an insulating layer.
  • the invention has the advantages that a high-performance, high-quality flat high-speed cable is prepared by providing a branching device and a wire-splicing device through steps of cable, branch, wire and strand;
  • the preparation method of the cable is reliable, high in efficiency and low in cost.
  • the flat high-speed cable prepared by the method has high performance and high quality; effectively guarantees stable performance of the high-speed flat signal pair; significantly reduces the stress of the high-speed flat signal on the twisted pair, improves the performance stability of the cable; and effectively performs the internal clearance of the cable Filling, keeping the roundness of the cable strand close to the true circle; increasing the friction between the high-speed flat signal pair and the filler, thereby reducing the twisting and contraction of the cable due to bending; improving the softness of the cable and reducing the bending radius .
  • DRAWINGS 1 is a schematic flow chart of a split line and a line according to an embodiment of the present invention
  • FIG. 2 is a schematic structural view of the branch line and the wire aligning device of FIG. 1;
  • Figure 3 is a schematic cross-sectional view of a semi-finished flat high-speed cable with two pairs of high-speed flat signal pairs
  • Figure 4 is a schematic cross-sectional view of a finished flat high-speed cable with two pairs of high-speed flat signal pairs
  • Figure 5 shows a pair of high-speed flat signal pairs
  • FIG. 6 is a schematic cross-sectional view of a finished flat high-speed cable including four pairs of high-speed flat signal pairs
  • FIG. 7 is a schematic cross-sectional view of a semi-finished flat high-speed cable including eight pairs of high-speed flat signal pairs
  • Figure 8 is a schematic cross-sectional view of a finished flat high-speed cable with 8 pairs of high-speed flat signal pairs
  • the method for preparing a flat high-speed cable includes the following steps:
  • the pair of high-speed flat signals of the pair of pairs are arranged along the center line of a circle, so that the cross-section of the high-speed flat signal pair 1 is evenly and symmetrically distributed on the circle;
  • the circular flat high-speed cable is extruded through the cable extrusion die, and the flat high-speed cable 1 is formed with the gap filling layer 2 and the outer cover layer 3 to ensure the gap between the high-speed flat signal pair 1 is effective. Fill and make the appearance effectively covered;
  • the gap-filling layer 2 and the outer cover layer 3 are PVC material, TPE material or the like; the outer cover layer has a thickness of 0.1 to 0.5 mm ; the shape of the semi-finished flat high-speed cable
  • the existing method uses the existing cable extrusion pipe or the filling method;
  • splitter a splitter device 4 is provided, and the semi-finished flat high-speed cable is divided into two symmetrical cable halves along the center line of the circle described in step 1); the branching device 4 is divided into one The eye mold 41 and a splitting blade 42 for use therewith, the branching blade 42 can adjust the distance from the split eye mold 41, and the exit of the split eye mold 41 is provided with a smooth transition And the gradually increasing annular groove 43; the semi-finished flat high-speed cable passes through the split eye mold 41, is pulled forward by the device, and is divided into two symmetrical cables by the splitting blade 42;
  • a wire aligning device 5 is arranged to face the mutually symmetric two halves of the cable, and merge into a circular cable that is symmetrically cut; the wire aligning device 5 is connected by a line
  • the mechanism 51 is composed of a clustering mechanism 52, and the wire passing mechanism 51 is disposed on the rear side of the branching blade 43, and is composed of two sets of upper and lower wire guide wheels or bearings 511 and 512 corresponding to each other, three in each group.
  • the group of wire guide wheels or bearings 511 and 512 are arranged in an "S" type to realize positioning, to avoid twisting and flanging when the twisted wire is twisted, and to prevent the pitch of the twisted wire from being transmitted to the branching device 4.
  • the filler in the middle of the semi-finished flat high-speed cable can play a buffering effect under the torsional stress, and reduce the effect of the torsional force directly on the high-speed flat signal pair 1;
  • Stranded wire The rounded cable after the twisting wire is twisted. By twisting the twisted wire, the two cables are twisted and twisted together to form a circular shape in which the two cables are twisted together.
  • the flat high-speed cable; the branching device 4 in step 2) and the wire-closing device 5 in step 3) are disposed on the same fixed frame 6, and then mounted on the fork winch or the cage stranding machine; After the cable is connected, the wire is twisted into the stranding part of the fork winch or the cage stranding machine, and the strake is formed by the rotation of the pay-off portion and the pulling speed.
  • Post-processing After isolating the round flat high-speed cable formed by the two halves of the cable strand, the aluminum foil layer 7, the braid layer 8 and the outer layer 9 are sequentially coated, and finally extruded to obtain a final flat high speed. The finished cable.
  • the high-speed flat signal pair 1 of the double-number pair is 2 to 16 pairs, or even more.
  • this embodiment shows a structural view of a semi-finished product comprising two pairs, four pairs and eight pairs of high-speed flat signal pairs 1 and a finished flat high-speed cable.
  • the method has two forms, one is to form a gap filling layer and an outer covering layer for all high-speed flat signal pairs; the other is to form a gap filling layer and an outer covering layer only for the high-speed flat signal pair of the central portion, such as the central portion 2 pairs or 4 pairs of high speed flat signal pairs. Therefore, 1.2) in step 1) may be a high-speed flat signal pair in which zero pairs or double pairs are arranged; the arrangement of zero pairs is the first form described above, and the arrangement of the double pairs is the second form described above.
  • the high-speed flat signal pair required for the flat high-speed cable is 8 pairs, in addition to the overall extrusion to have the gap filling layer 2 and the outer cover layer 3, it is also possible to retire, only the center 2 pairs
  • the high speed flat signal pair has a gap fill layer 2 and an outer cover layer 3, and then covers the remaining high speed flat signal pairs at its outer edge to form a semi-finished flat high speed cable to be processed.
  • a flat high-speed cable for implementing the above method for manufacturing a flat high-speed cable includes a core wire, an aluminum foil layer 7, a braid layer 8, and an outer layer 9 which are sequentially disposed from the inside to the outside;
  • the core wire is composed of two half-core wires twisted and twisted together;
  • the core wire includes a middle layer 15 which is composed of a high-speed flat signal pair uniformly distributed in a cross section, and a gap-fill layer 2
  • the outer cover layer 3 is composed.
  • the core wire further includes an outer cladding layer 16, the outer cladding layer 16 comprising a pair of high speed flat signal pairs, the pair of high speed flat signal pairs being along the middle
  • the outer edges of the layers 15 are evenly arranged, and the middle layer 15 is wrapped around the center.
  • the flat high speed cable has two forms. First, only the middle layer, according to the required high-speed flat signal pairs, the total extrusion, so that the entire core has a gap filling layer and The cover layer is covered and then split and twisted. The second is: When the required high-speed flat signal pair is more than 4 pairs, it can also be in the form of a push-in quilt, that is, only the pair of high-speed flat signals of 2 pairs, 4 pairs or more in the middle are pushed out to have a gap. The filling layer and the outer covering layer are then coated with other high-speed flat signal pairs; the core layer has only the middle layer to have the gap filling layer and the outer covering layer.
  • the half core wire is formed by arranging a pair of high speed flat signal pairs of a pair of pairs along a center line of a circle such that the cross section of the high speed flat signal pair is uniformly and symmetrically distributed on the circle, through the line
  • the cable is ejected out of the circular flat high-speed cable; in the middle of the flat high-speed cable, the high-speed flat signal of zero-pair or double-pair is continuously and symmetrically arranged along the center line of the circle
  • the flat high-speed cable is wrapped around the center, extruded through a cable extrusion die, and then symmetrically divided along the center line of the circle.
  • the pair of high speed flat signals 1 pair is 2 to 16 pairs, or even more. Referring to Figures 3 through 8, this embodiment shows a cross-sectional structure of a semi-finished product comprising two pairs, four pairs, and eight pairs of high-speed flat signal pairs, and a finished flat high-speed cable.
  • the gap-fill layer 2 and the outer cover layer 3 are PVC material, TPE material or the like; the outer cover layer 3 has a thickness of 0.1 to 0.5 mm.
  • the high speed flat signal pair has an elliptical shape, and includes two wires 11 and a ground wire 12, and is covered with an aluminum foil 13 and a hot melt Mylar 14.
  • the wire 11 is covered with an insulating layer 111.
  • a high-performance, high-quality flat high-speed cable is prepared through steps of cable, branch, wire and strand; the method for preparing the flat high-speed cable is reliable , high efficiency and low cost.
  • the flat high-speed cable prepared by the method has high performance and high quality; effectively guarantees stable performance of the high-speed flat signal pair; significantly reduces the stress of the high-speed flat signal on the twisted pair, improves the performance stability of the cable; and effectively performs the internal clearance of the cable Filling, keeping the roundness of the cable strand close to the true circle; increasing the friction between the high-speed flat signal pair and the filler, thereby reducing the twisting and contraction of the cable due to bending; improving the softness of the cable and reducing the bending radius .
  • the present invention is not limited to the above embodiment, and the method for preparing other flat high-speed cables and the flat high-speed cable for implementing the same, which are the same or similar steps and structures as the above-described embodiments of the present invention, are all in the present invention.
  • the method for preparing other flat high-speed cables and the flat high-speed cable for implementing the same which are the same or similar steps and structures as the above-described embodiments of the present invention, are all in the present invention.

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Abstract

一种扁平高速线缆的制备方法及由该方法制备的扁平高速线缆,该制备方法包括以下步骤:1、制备待加工的半成品扁平高速线缆:1.1押中被;1.2形成半成品扁平高速线缆;2、分线:设置一分线装置,将半成品扁平高速线缆分割成相互对称的两半线缆;3、合线:设置一合线装置,将相互对称的两半线缆合并成被对称剖开的圆形线缆;4、绞线:对合线之后的圆形线缆进行绞线,形成一根由两半线缆相互绞合在一起的扁平高速线缆。该制备方法原理可靠,效率高,成本低。通过设置分线装置以及合线装置,以及通过排线、分线、合线及绞线等步骤,制备出高性能、高质量的扁平高速线缆。

Description

一种扁平高速线缆的制备方法及其制品
技术领域
本发明涉及线缆制备技术,特别涉及一种扁平高速线缆的制备方法及实 施该方法的扁平高速线缆。
背景技术
目前市场上的扁平高速线缆, 其在成缆绞合时, 采用的是单个线直接绞 合, 扁平线缆的单个线因为绞线扭力作用, 产生应力反应, 导致扁平高速线 缆中的扁平高速线对(高速扁平信号对)容易因应力作用产生损伤或导致电 气性能不良, 如延迟差、 衰减等现象。
另外, 多对扁平高速线对集合成缆时, 结构因素容易产生绞合不圆, 扁 平线对在弯曲时容易伸缩移位。传统的扁平高速线缆在集合成缆时会填充棉 纱、 PP绳 、 PE条、 PVC条等同类型材料, 虽然可以改善绞线圆度, 但填 充物容易移位, 容易造成严重的填充缺陷, 从而影响扁平高速线缆的质量。
采用传统方式制备出来的扁平高速线缆稳定性差, 圆度无法保证, 柔软 度低, 无法有效降低扁平高速线缆的弯曲半径, 难以适应经常性弯折等。 发明内容
针对上述不足,本发明的目的在于,提供一种扁平高速线缆的制备方法, 通过设置分线装置以及合线装置, 通过排线、 分线、 合线以及绞线等步骤, 制备出一种高性能, 高质量的扁平高速线缆; 该扁平高速线缆的制备方法原 理可靠, 效率高, 成本低。
本发明的目的还在于,提供一种实施上述扁平高速线缆的制备方法的扁 平高速线缆, 具有高性能, 高质量等优点。
本发明为实现上述目的所采用的技术方案是:
一种扁平高速线缆的制备方法, 其特征在于, 其包括以下步骤:
1 ) 制备待加工的半成品扁平高速线缆:
1.1 )押中被: 根据预先设定, 将双数对的高速扁平信号对沿一个圆的中 心线进行排列, 使所述高速扁平信号对的横截面均匀、 对称地分布于圆上; 通过线缆押出模具押出圆形的中被扁平高速线缆, 该中被扁平高速线缆形成 有间隙填充层以及外表覆盖层,保证所述高速扁平信号对之间的间隙得到有 效填充以及使外表得到有效覆盖;
1.2)形成半成品扁平高速线缆: 在所述中被扁平高速线缆的外缘, 沿所 述圆的中心线继续均匀、 对称地排列零对或者双数对的高速扁平信号对, 将 所述中被扁平高速线缆包覆于中心处,形成所需要的待加工半成品扁平高速 线缆;
所述间隙填充层以及外表覆盖层为 PVC材料、 TPE材料或其同类材料; 所述外表覆盖层的厚度为 0.1至 0.5mm; 该半成品扁平高速线缆的形成方式 采用的是现有的线缆挤管或充实押出方式;
2)分线: 设置一分线装置, 将所述半成品扁平高速线缆沿步骤 1 )所述 的圆的中心线分割成相互对称的两半线缆; 所述分线装置由一分线眼模及一 与之相配合使用的分线刀片组成,所述分线刀片可以调节与分线眼模之间的 距离, 所述分线眼模的出口设有一圆滑过渡并且逐渐增大的环形凹槽; 所述 半成品扁平高速线缆经过分线眼模, 由设备牵引向前移动, 通过分线刀片将 其分割成相互对称的两半线缆;
3 )合线: 设置一合线装置, 将所述相互对称的两半线缆沿分割面对接, 合并成被对称剖开的圆形线缆; 所述合线装置由一过线机构以及一集线机构 组成, 所述过线机构设于所述分线刀片的后侧, 由上下对应的两组过线导轮 或轴承组成, 每组三个, 保持水平一致, 并且位置可灵活移动调节; 调节所 述过线机构与所述分线眼模出口之间的位置, 使经过所述分线刀片分线后的 两半线缆成角度 30° 至 70° 拉出, 避免因为角度太小而损伤高速扁平信号 对或因为角度太大而影响高速扁平信号对的信号质量; 所述拉出后的两半线 缆分别通过上下两组过线导轮或轴承呈 "S "型走线, 实现定位, 避免旋转 绞线时产生扭转翻边以及阻止旋转绞线时的绞距传递到分线装置。 同时半成 品扁平高速线缆中间的填充物在扭转应力作用下, 可起到缓冲效果, 减少扭 转力直接对高速扁平信号对的作用;
4) 绞线: 对合线之后的圆形线缆进行绞线, 通过旋转绞线, 将两半线 缆相互缠绕扭绞, 形成一根由两半线缆相互绞合在一起的成圆形状的扁平高 速线缆; 步骤 2) 中的分线装置以及步骤 3 ) 中的合线装置设置在同一固定 架上, 然后安装于叉绞机或笼型绞线机; 相互对称的两半线缆合线之后进入 叉绞机或笼型绞线机的绞线部分,通过放线部分的旋转与牵引速度保持一定 比例形成绞距。 所述步骤 4)还包括: 绞线时扭转一圈为一个绞距 L1 , 一个 绞距 L1为 50~100倍的半成品扁平高速线缆直径 D(mm), 并且一个绞距的 范围在 100mm至 600mm之间, 即单个最小绞距不低于 100mm, 单个最大 绞距不超过 600mm; 扭转速度 SI (单位: 转 /分钟), 牵引速度 S2 (单位: 米 /分钟), 一个绞距长度 L1 (单位: 毫米 /转), 绞线时所述扭转速度 Sl、 牵 引速度 S2以及一个绞距长度 L1的数值满足以下公式: S2=S1*L1*1000。
其还包括以下步骤:
5 ) 后期加工:将两半线缆绞线后形成的圆形状的扁平高速线缆隔离后, 依次包覆铝箔层、 编织层以及外被层, 最后押出成型, 得到最终的扁平高速 线缆成品。
所述双数对的高速扁平信号对为 2至 16对, 甚至更多。 该方法有两种 形式, 一是对所有的高速扁平信号对都形成间隙填充层以及外表覆盖层; 二 是只对中心部分的高速扁平信号对形成间隙填充层以及外表覆盖层, 如中心 部分的 2对或 4对高速扁平信号对。 因此步骤 1 )中的 1.2)可以是排列零对 或者双数对的高速扁平信号对; 排列零对时是上述第一种形式, 排列双数对 时是上述第二种形式。
本方法可应用于 SFP\SFP+\QSFP\QSFP+等同类高速扁平信号对线缆。 一种实施上述扁平高速线缆的制备方法的扁平高速线缆, 其特征在于: 其包括由内到外依次设置的芯线、 铝箔层、 编织层以及外被层; 所述芯线由 两根相互缠绕扭绞在一起的半芯线组成; 所述芯线包括中被层, 该中被层由 均匀分布于横截面的高速扁平信号对、 间隙填充层以及外表覆盖层组成。
作为进一步的改进, 所述芯线还包括外包层, 该外包层包括双数对的高 速扁平信号对,所述双数对的高速扁平信号对沿所述中被层的外缘均匀地排 列, 将所述中被层包覆于中心处。 即所述的扁平高速线缆有两种形式。 一是: 只有中被层, 根据所需要的 高速扁平信号对数量, 进行总体押出, 使整个芯线都具有间隙填充层以及外 表覆盖层, 然后再进行分割、 绞合。 二是: 当所需要的高速扁平信号对为 4 对以上时, 还可采用押中被的形式, 即只对中间的 2对、 4对或更多对的高 速扁平信号对进行押出, 使其具有间隙填充层以及外表覆盖层, 然后再将其 他高速扁平信号对包覆外包层; 使芯线只有中被层才具有间隙填充层以及外 表覆盖层。
所述的半芯线由以下方式形成:将双数对的高速扁平信号对沿一个 圆的中心线进行排列, 使所述高速扁平信号对的横截面均匀、 对称地分布于 圆上, 通过线缆押出模具押出圆形的中被扁平高速线缆; 在所述中被扁平高 速线缆的外缘, 沿所述圆的中心线继续均匀、 对称地排列零对或者双数对的 高速扁平信号对, 将所述中被扁平高速线缆包覆于中心处, 通过线缆押出模 具挤出成型, 然后沿所述圆的中心线对称分割而成。 所述双数对的高速扁平 信号对为 2至 16对, 甚至更多。
所述间隙填充层以及外表覆盖层为 PVC材料、 TPE材料或其同类材料; 所述外表覆盖层的厚度为 0.1至 0.5mm。
所述高速扁平信号对成椭圆形, 其包括两根导线和一根地线, 并覆盖有 铝箔和热融麦拉。 所述导线包覆有绝缘层。
本发明的优点在于:通过设置分线装置以及合线装置,通过排线、分线、 合线以及绞线等步骤, 制备出一种高性能, 高质量的扁平高速线缆; 该扁平 高速线缆的制备方法原理可靠, 效率高, 成本低。 采用本方法制备的扁平高 速线缆性能高, 质量高; 有效保证高速扁平信号对的性能稳定; 明显降低高 速扁平信号对绞线应力, 提升线缆的性能稳定性; 对线缆内部间隙进行有效 填充, 保持线缆绞线圆度接近真圆; 提升高速扁平信号对与填充物间的摩擦 力, 从而降低线缆因弯曲而产生的线对伸缩; 提高线缆的柔软度, 减小弯曲 半径。
下面结合附图与具体实施方式, 对本发明进一步说明。
附图说明 图 1为本发明实施例分线、 合线的流程示意图;
图 2为图 1中分线、 合线装置的结构示意图;
图 3为含 2对高速扁平信号对的半成品扁平高速线缆的截面示意图; 图 4为含 2对高速扁平信号对的成品扁平高速线缆的截面示意图; 图 5为含 4对高速扁平信号对的半成品扁平高速线缆的截面示意图; 图 6为含 4对高速扁平信号对的成品扁平高速线缆的截面示意图; 图 7为含 8对高速扁平信号对的半成品扁平高速线缆的截面示意图; 图 8为含 8对高速扁平信号对的成品扁平高速线缆的截面示意图; 图中: 1.高速扁平信号对; 11.导线; 111.绝缘层; 12.地线; 13.铝箔; 14.热融麦拉; 15.中被层 ; 16.外包层; 2.间隙填充层; 3.外表覆盖层; 4.分线装置; 41.分线眼模; 42.分线刀片; 43.环形凹槽; 5.合线装置; 51.过线机构; 511.上过线导轮或轴承; 512.下过线导轮或轴承; 52.集线机构; 6.固定架; 7.铝箔层; 8.编织层; 9.外被层。
具体实施方式
参见图 1至图 8 (其中图 3、 5、 7中的高速扁平信号对为省略画法), 本实施例提供的一种扁平高速线缆的制备方法, 其包括以下步骤:
1 ) 制备待加工的半成品扁平高速线缆:
1.1 )押中被: 根据预先设定, 将双数对的高速扁平信号 1对沿一个圆的 中心线进行排列, 使所述高速扁平信号对 1的横截面均匀、 对称地分布于圆 上; 通过线缆押出模具押出圆形的中被扁平高速线缆, 该中被扁平高速线缆 1形成有间隙填充层 2以及外表覆盖层 3, 保证所述高速扁平信号对 1之间 的间隙得到有效填充以及使外表得到有效覆盖;
1.2)形成半成品扁平高速线缆: 在所述中被扁平高速线缆的外缘, 沿所 述圆的中心线继续均匀、 对称地排列零对或者双数对的高速扁平信号对 1, 将所述中被扁平高速线缆包覆于中心处, 形成所需要的待加工半成品扁平高 速线缆;
所述间隙填充层 2以及外表覆盖层 3为 PVC材料、 TPE材料或其同类 材料; 所述外表覆盖层的厚度为 0.1至 0.5mm; 该半成品扁平高速线缆的形 成方式采用的是现有的线缆挤管或充实押出方式;
2)分线: 设置一分线装置 4, 将所述半成品扁平高速线缆沿步骤 1 )所 述的圆的中心线分割成相互对称的两半线缆;所述分线装置 4由一分线眼模 41及一与之相配合使用的分线刀片 42组成,所述分线刀片 42可以调节与分 线眼模 41之间的距离,所述分线眼模 41的出口设有一圆滑过渡并且逐渐增 大的环形凹槽 43; 所述半成品扁平高速线缆经过分线眼模 41, 由设备牵引 向前移动, 通过分线刀片 42将其分割成相互对称的两半线缆;
3 )合线:设置一合线装置 5,将所述相互对称的两半线缆沿分割面对接, 合并成被对称剖开的圆形线缆; 所述合线装置 5由一过线机构 51 以及一集 线机构 52组成, 所述过线机构 51设于所述分线刀片 43的后侧, 由上下对 应的两组过线导轮或轴承 511、 512组成, 每组三个, 保持水平一致, 并且 位置可灵活移动调节; 调节所述过线机构 51与所述分线眼模出口 41之间的 位置, 使经过所述分线刀片 42分线后的两半线缆成角度 30° 至 70° 拉出, 避免因为角度太小而损伤高速扁平信号对 1或因为角度太大而影响高速扁平 信号对 1的信号质量;所述拉出后的两半线缆分别通过上下两组过线导轮或 轴承 511、 512呈 " S "型走线, 实现定位, 避免旋转绞线时产生扭转翻边以 及阻止旋转绞线时的绞距传递到分线装置 4。 同时半成品扁平高速线缆中间 的填充物在扭转应力作用下, 可起到缓冲效果, 减少扭转力直接对高速扁平 信号对 1的作用;
4 ) 绞线: 对合线之后的圆形线缆进行绞线, 通过旋转绞线, 将两半线 缆相互缠绕扭绞, 形成一根由两半线缆相互绞合在一起的成圆形状的扁平高 速线缆; 步骤 2 ) 中的分线装置 4以及步骤 3 ) 中的合线装置 5设置在同一 固定架 6上, 然后安装于叉绞机或笼型绞线机; 相互对称的两半线缆合线之 后进入叉绞机或笼型绞线机的绞线部分,通过放线部分的旋转与牵引速度保 持一定比例形成绞距。所述步骤 4)还包括:绞线时扭转一圈为一个绞距 L1 , 一个绞距 L1为 50~100倍的半成品扁平高速线缆直径 D(mm), 并且一个绞 距的范围在 100mm至 600mm之间, 即单个最小绞距不低于 100mm, 单个 最大绞距不超过 600mm; 扭转速度 SI (单位: 转 /分钟),牵引速度 S2 (单位: 米 /分钟), 一个绞距长度 L1 (单位: 毫米 /转), 绞线时所述扭转速度 Sl、 牵引速度 S2以及一个绞距长度 L1的数值满足以下公式: S2=S1*L1*1000。
其还包括以下步骤:
5)后期加工: 将两半线缆绞线后形成的圆形状的扁平高速线缆隔离后, 依次包覆铝箔层 7、 编织层 8以及外被层 9, 最后押出成型, 得到最终的扁 平高速线缆成品。
所述双数对的高速扁平信号对 1为 2至 16对, 甚至更多。 参见图 3至 图 8, 本实施例给出了包含 2对、 4对以及 8对高速扁平信号对 1的半成品 以及成品扁平高速线缆的结构附图。
该方法有两种形式,一是对所有的高速扁平信号对都形成间隙填充层以 及外表覆盖层; 二是只对中心部分的高速扁平信号对形成间隙填充层以及外 表覆盖层,如中心部分的 2对或 4对高速扁平信号对。因此步骤 1 )中的 1.2) 可以是排列零对或者双数对的高速扁平信号对; 排列零对时是上述第一种形 式, 排列双数对时是上述第二种形式。
参见图 7、 8, 当扁平高速线缆需要的高速扁平信号对为 8对时, 除了整 体押出使其具有间隙填充层 2以及外表覆盖层 3, 还可以押中被, 只使中心 的 2对高速扁平信号对具有间隙填充层 2以及外表覆盖层 3, 然后在其外缘 覆盖剩下的高速扁平信号对, 从而形成待加工的半成品扁平高速线缆。
参见图 3至图 8, 一种实施上述扁平高速线缆的制备方法的扁平高速线 缆, 其包括由内到外依次设置的芯线、 铝箔层 7、 编织层 8以及外被层 9; 所述芯线由两根相互缠绕扭绞在一起的半芯线组成; 所述芯线包括中被层 15, 该中被层 15 由均匀分布于横截面的高速扁平信号对 1、 间隙填充层 2 以及外表覆盖层 3组成。
参见图 7、 8, 作为进一步的改进, 所述芯线还包括外包层 16, 该外包 层 16包括双数对的高速扁平信号对, 所述双数对的高速扁平信号对沿所述 中被层 15的外缘均匀地排列, 将所述中被层 15包覆于中心处。
即所述的扁平高速线缆有两种形式。 一是: 只有中被层, 根据所需要的 高速扁平信号对数量, 进行总体押出, 使整个芯线都具有间隙填充层以及外 表覆盖层, 然后再进行分割、 绞合。 二是: 当所需要的高速扁平信号对为 4 对以上时, 还可采用押中被的形式, 即只对中间 2对、 4对或更多对的高速 扁平信号对进行押出, 使其具有间隙填充层以及外表覆盖层, 然后再将其他 高速扁平信号对包覆外包层; 使芯线只有中被层才具有间隙填充层以及外表 覆盖层。
所述的半芯线由以下方式形成:将双数对的高速扁平信号对沿一个圆的 中心线进行排列,使所述高速扁平信号对的横截面均匀、对称地分布于圆上, 通过线缆押出模具押出圆形的中被扁平高速线缆;在所述中被扁平高速线缆 的外缘, 沿所述圆的中心线继续均匀、 对称地排列零对或者双数对的高速扁 平信号对, 将所述中被扁平高速线缆包覆于中心处, 通过线缆押出模具挤出 成型, 然后沿所述圆的中心线对称分割而成。 所述双数对的高速扁平信号 1 对为 2至 16对, 甚至更多。 参见图 3至图 8, 本实施例给出了包含 2对、 4 对以及 8对高速扁平信号对 1的半成品以及成品扁平高速线缆的截面结构附 图。
所述间隙填充层 2以及外表覆盖层 3为 PVC材料、 TPE材料或其同类 材料; 所述外表覆盖层 3的厚度为 0.1至 0.5mm。
所述高速扁平信号对 1成椭圆形, 其包括两根导线 11和一根地线 12, 并覆盖有铝箔 13和热融麦拉 14。 所述导线 11包覆有绝缘层 111。
通过设置分线装置以及合线装置, 通过排线、 分线、 合线以及绞线等步 骤, 制备出一种高性能, 高质量的扁平高速线缆; 该扁平高速线缆的制备方 法原理可靠, 效率高, 成本低。 采用本方法制备的扁平高速线缆性能高, 质 量高; 有效保证高速扁平信号对的性能稳定; 明显降低高速扁平信号对绞线 应力, 提升线缆的性能稳定性; 对线缆内部间隙进行有效填充, 保持线缆绞 线圆度接近真圆; 提升高速扁平信号对与填充物间的摩擦力, 从而降低线缆 因弯曲而产生的线对伸缩; 提高线缆的柔软度, 减小弯曲半径。
本发明并不限于上述实施方式,采用与本发明上述实施例相同或近 似的步骤及结构,而得到的其他扁平高速线缆的制备方法及实施该方法 的扁平高速线缆, 均在本发明的保护范围之内。

Claims

权 利 要 求 书
1.一种扁平高速线缆的制备方法, 其特征在于, 其包括以下步骤:
1 ) 制备待加工的半成品扁平高速线缆:
1.1 ) 押中被: 根据预先设定, 将双数对的高速扁平信号对沿一个圆的中 心线进行排列, 使所述高速扁平信号对的横截面均匀、 对称地分布于圆上; 通过线缆押出模具押出圆形的中被扁平高速线缆, 该中被扁平高速线缆形成 有间隙填充层以及外表覆盖层,保证所述高速扁平信号对之间的间隙得到有 效填充以及使外表得到有效覆盖;
1.2)形成半成品扁平高速线缆: 在所述中被扁平高速线缆的外缘, 沿所 述圆的中心线继续均匀、 对称地排列零对或者双数对的高速扁平信号对, 将 所述中被扁平高速线缆包覆于中心处,形成所需要的待加工半成品扁平高速 线缆;
2)分线: 设置一分线装置, 将所述半成品扁平高速线缆沿步骤 1 )所述 的圆的中心线分割成相互对称的两半线缆;
3 )合线: 设置一合线装置, 将所述相互对称的两半线缆沿分割面对接, 合并成被对称剖开的圆形线缆;
4) 绞线: 对合线之后的圆形线缆进行绞线, 通过旋转绞线, 将两半线 缆相互缠绕扭绞, 形成一根由两半线缆相互绞合在一起的成圆形状的扁平高 速线缆。
2.根据权利要求 1所述的扁平高速线缆的制备方法, 其特征在于: 其还 包括以下步骤:
5 )后期加工: 将两半线缆绞线后形成的圆形状的扁平高速线缆隔离后, 依次包覆铝箔层、 编织层以及外被层, 最后押出成型, 得到最终的扁平高速 线缆成品。
3.根据权利要求 1所述的扁平高速线缆的制备方法, 其特征在于: 所述 步骤 1 )还包括: 所述间隙填充层以及外表覆盖层为 PVC材料或 TPE材料; 所述外表覆盖层的厚度为 0.1至 0.5mm。
4.根据权利要求 1所述的扁平高速线缆的制备方法, 其特征在于: 所述 步骤 2) 还包括: 所述分线装置由一分线眼模及一与之相配合使用的分线刀 片组成, 所述分线眼模的出口设有一圆滑过渡并且逐渐增大的环形凹槽; 所 述半成品扁平高速线缆经过分线眼模, 由设备牵引向前移动, 通过分线刀片 将其分割成相互对称的两半线缆。
5.根据权利要求 4所述的扁平高速线缆的制备方法, 其特征在于: 所述 步骤 3 ) 还包括: 所述合线装置由一过线机构以及一集线机构组成, 所述过 线机构设于所述分线刀片的后侧, 由上下对应的两组过线导轮或轴承组成, 每组三个, 保持水平一致, 并且位置可灵活移动调节; 调节所述过线机构与 所述分线眼模出口之间的位置, 使经过所述分线刀片分线后的两半线缆成角 度 30° 至 70° 拉出, 避免因为角度太小而损伤高速扁平信号对或因为角度 太大而影响高速扁平信号对的信号质量; 所述拉出后的两半线缆分别通过上 下两组过线导轮或轴承呈 "S "型走线, 实现定位, 避免旋转绞线时产生扭 转翻边以及阻止旋转绞线时的绞距传递到分线装置。
6.根据权利要求 1所述的扁平高速线缆的制备方法, 其特征在于: 所述 步骤 4) 还包括: 绞线时扭转一圈为一个绞距 L1 , 一个绞距 L1 为 50~100 倍的半成品扁平高速线缆直径 D(mm), 并且其范围在 100mm至 600mm之 间; 扭转速度 S1 (单位: 转 /分钟), 牵引速度 S2 (单位: 米 /分钟), 一个绞 距长度 L1 (单位: 毫米 /转), 绞线时所述扭转速度 Sl、 牵引速度 S2以及 一个绞距长度 L1的数值满足以下公式: S2=S1*L1*1000。
7.—种实施权利要求 1所述扁平高速线缆的制备方法的扁平高速线缆, 其特征在于:其包括由内到外依次设置的芯线、铝箔层、编织层以及外被层; 所述芯线由两根相互缠绕扭绞在一起的半芯线组成; 所述芯线包括中被层, 该中被层由均匀分布于横截面的高速扁平信号对、 间隙填充层以及外表覆盖 层组成。
8.根据权利要求 7所述的扁平高速线缆, 其特征在于: 所述芯线还包括 外包层, 该外包层包括双数对的高速扁平信号对, 所述双数对的高速扁平信 号对沿所述中被层的外缘均匀地排列, 将所述中被层包覆于中心处。
9.根据权利要求 7或 8所述的扁平高速线缆, 其特征在于: 所述的半芯 线由以下方式形成: 将双数对的高速扁平信号对沿一个圆的中心线进行排 列, 使所述高速扁平信号对的横截面均匀、 对称地分布于圆上, 通过线缆押 出模具押出圆形的中被扁平高速线缆; 在所述中被扁平高速线缆的外缘, 沿 所述圆的中心线继续均匀、 对称地排列零对或者双数对的高速扁平信号对, 将所述中被扁平高速线缆包覆于中心处, 通过线缆押出模具挤出成型, 然后 沿所述圆的中心线对称分割而成。
10.根据权利要求 7所述的扁平高速线缆,其特征在于:所述间隙填充层 以及外表覆盖层为 PVC材料或 TPE材料; 所述外表覆盖层的厚度为 0.1至 0.5mm; 所述高速扁平信号对成椭圆形, 其包括两根导线和一根地线, 并覆 盖有铝箔和热融麦拉; 所述导线包覆有绝缘层。
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