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1. WO2020134182 - FULLY-DRY OPTICAL CABLE LOOSE SLEEVE PRODUCTION PROCESS AND SHAPING APPARATUS THEREOF

Publication Number WO/2020/134182
Publication Date 02.07.2020
International Application No. PCT/CN2019/104964
International Filing Date 09.09.2019
IPC
B29C 48/32 2019.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
25Component parts, details or accessories; Auxiliary operations
30Extrusion nozzles or dies
32with annular openings, e.g. for forming tubular articles
B29C 48/25 2019.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
25Component parts, details or accessories; Auxiliary operations
B29C 48/09 2019.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
03characterised by the shape of the extruded material at extrusion
09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
B29C 48/88 2019.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
25Component parts, details or accessories; Auxiliary operations
88Thermal treatment of the stream of extruded material, e.g. cooling
B29L 11/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C59
11Optical elements, e.g. lenses, prisms
CPC
B29C 48/09
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
03characterised by the shape of the extruded material at extrusion
09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
B29C 48/25
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
25Component parts, details or accessories; Auxiliary operations
B29C 48/32
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
25Component parts, details or accessories; Auxiliary operations
30Extrusion nozzles or dies
32with annular openings, e.g. for forming tubular articles
B29C 48/88
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
25Component parts, details or accessories; Auxiliary operations
88Thermal treatment of the stream of extruded material, e.g. cooling
B29L 2011/0075
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
2011Optical elements, e.g. lenses, prisms
0075Light guides, optical cables
G02B 6/50
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
46Processes or apparatus adapted for installing optical fibres or optical cables
50Underground or underwater installation; Installation through tubing, conduits or ducts
Applicants
  • 江苏亨通光电股份有限公司 HENGTONG OPTIC-ELECTRIC CO., LTD. [CN]/[CN]
Inventors
  • 韩宇峰 HAN, Yufeng
  • 刘沛东 LIU, Peidong
  • 史惠萍 SHI, Huiping
  • 吴迪 WU, Di
  • 周峰 ZHOU, Feng
  • 费华青 FEI, Huaqing
  • 李伟 LI, Wei
  • 王宇亮 WANG, Yuliang
Agents
  • 北京超凡宏宇专利代理事务所(特殊普通合伙) CHOFN INTELLECTUAL PROPERTY
Priority Data
201811596468.625.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) FULLY-DRY OPTICAL CABLE LOOSE SLEEVE PRODUCTION PROCESS AND SHAPING APPARATUS THEREOF
(FR) PROCÉDÉ DE FABRICATION D'UN MANCHON LÂCHE DE CÂBLE OPTIQUE TOTALEMENT SEC ET APPAREIL DE FAÇONNAGE ASSOCIÉ
(ZH) 全干式光缆松套管生产工艺及其成型装置
Abstract
(EN)
Provided in the present disclosure are a fully-dry optical cable loose sleeve production process and a shaping apparatus thereof, relating to the technical field of optical fibre cable processing and manufacturing, the fully-dry optical cable loose sleeve production process of the present disclosure comprising: by means of a loose sleeve shaping apparatus, extruding loose sleeve material into a tubular loose sleeve; filling the loose sleeve with compressed gas; cooling the loose sleeve; and inserting optical fibre or optical fibre ribbon into the loose sleeve. The fully-dry optical cable loose sleeve production process provided in the present disclosure solves the technical problems in the prior art of the loose sleeve easily becoming flat when extruded and the optical fibre easily sticking to the loose sleeve, such that the optical fibre attenuation index does not meet standards.
(FR)
La présente invention concerne un procédé de fabrication d'un manchon lâche de câble optique entièrement sec et un appareil de façonnage associé, se rapportant au domaine technique du traitement et de la fabrication de câble à fibres optiques, le procédé de fabrication d'un manchon lâche de câble optique entièrement sec de la présente invention consistant à : au moyen d'un appareil de façonnage de manchon lâche, extruder un matériau de manchon lâche en un manchon lâche tubulaire ; remplir le manchon lâche avec du gaz comprimé ; refroidir le manchon lâche ; et introduire une fibre optique ou un ruban de fibre optique dans le manchon lâche. Le procédé de fabrication d'un manchon lâche de câble optique entièrement sec selon la présente invention résout les problèmes techniques dans l'état antérieur de la technique selon lesquels le manchon lâche devient facilement plat lorsqu'il est extrudé et la fibre optique adhère facilement au manchon lâche, de telle sorte que l'indice d'atténuation de fibre optique ne satisfait pas les normes.
(ZH)
本公开提供了一种全干式光缆松套管生产工艺及其成型装置,涉及光纤光缆加工制造技术领域,本公开提供的全干式光缆松套管生产工艺,包括:通过松套管成型装置将松套管材料挤制成呈管状的松套管;向松套管内充入压缩气体;对松套管进行冷却;将光纤或光纤带穿入松套管内。本公开提供的全干式光缆松套管生产工艺缓解了相关技术中松套管在挤出成型时,容易呈扁状,且光纤易与松套管粘连,造成光纤衰减指标不合格的技术问题。
Also published as
Latest bibliographic data on file with the International Bureau