A hybrid loose-tube layer-stranded optical cable and its manufacturing method

A production method and a hybrid technology, which are applied in the field of optical cable manufacturing, can solve the problems of the influence of the optical cable core structure stability, the reduction of optical fiber density, and the difficulty in meeting design requirements, etc., to achieve improved optical fiber density, satisfactory water permeability, and stable structure. Effect
CN104714283BActive Publication Date: 2018-03-09FURUKAWA ELECTRIC XIAN OPTICAL COMM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FURUKAWA ELECTRIC XIAN OPTICAL COMM
Publication Date
2018-03-09

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Abstract

The invention discloses a hybrid loose-tube stranded optical cable and a manufacturing method thereof, and also includes a manufacturing device. The optical cable includes a sheath, and a metal moisture barrier layer and a yarn binding layer arranged in sequence on the inner layer of the sheath from outside to inside. , the binding layer is provided with at least one loose tube with built-in optical fiber bundles or ribbons and at least one central strength member, which is wound longitudinally around the central strength member by "SZ" stranding, and the loose tube with built-in optical fiber bundles or optical fiber ribbons The gaps between the ferrules are filled with loose ferrules for fiber bundles with small core counts. The production method includes: the central strength member, the loose tube with built-in optical fiber bundle or optical fiber ribbon, and the loose tube with small number of optical fiber bundles pass through the wire mold and stranding table, and are pulled to the yarn binding table, and the cable is pulled synchronously by the crawler traction device. The core is driven and pulled to the cable core take-up frame. The cable core structure of the present invention is stable, round, small in outer diameter, high in optical fiber density per unit section, and high in utilization rate of pipeline resources.
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Description

technical field

[0001] The invention belongs to the technical field of optical cable manufacturing, and relates to a hybrid loose-tube stranded optical cable and a manufacturing method thereof. Background technique

[0002] With the advent of the information age, the construction of communication networks is shifting from the backbone network with optical cables as the main transmission medium to the metropolitan area network and access network with optical cables as the main transmission medium, in order to meet the needs of the majority of users for voice, image and data, etc. The constant demands of the business. The communication network is the main carrier of information dissemination in the entire economic society in the future. It will not only change the way of information dissemination, but also bring fundamental changes to human life style and social development. However, in the construction of high-speed information network, a large number of optical fiber cables...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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