CN111965776A - Spiral micro-groove type air-blowing micro-cable, manufacturing equipment and manufacturing method - Google Patents
Spiral micro-groove type air-blowing micro-cable, manufacturing equipment and manufacturing method Download PDFInfo
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- CN111965776A CN111965776A CN202010921417.7A CN202010921417A CN111965776A CN 111965776 A CN111965776 A CN 111965776A CN 202010921417 A CN202010921417 A CN 202010921417A CN 111965776 A CN111965776 A CN 111965776A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/4438—Means specially adapted for strengthening or protecting the cables for facilitating insertion by fluid drag in ducts or capillaries
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4485—Installing in protective tubing by fluid drag during manufacturing
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
- G02B6/52—Underground or underwater installation; Installation through tubing, conduits or ducts using fluid, e.g. air
Abstract
The invention discloses a spiral micro-groove type air-blowing micro-cable, manufacturing equipment and a manufacturing method. According to the spiral micro-groove type air-blowing micro-cable, the manufacturing equipment and the manufacturing method, the spiral groove is formed in the outer wall of the outer protective layer of the air-blowing micro-cable, so that the air-blowing micro-cable can be uniformly wrapped by high-pressure air flow when laid under the condition that the original performance of the air-blowing micro-cable is not changed, the air-blowing micro-cable is always kept in the center of a pipeline, friction between the air-blowing micro-cable and the wall of the pipeline in the transmission process is reduced, air-blowing resistance is reduced, the blowing distance of the air-blowing micro-cable is effectively increased, and the spiral micro-groove type air-blowing.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication optical cables, in particular to a spiral micro-groove type air-blowing micro-cable, manufacturing equipment and a manufacturing method.
Background
With the continuous development of the optical communication industry, the capacity expansion of the network by the telecom operator is more and more frequent. In the aspect of optical fiber communication network construction, because the traditional communication optical cable has a large structure outer diameter and a heavy weight, and occupies a large amount of space when a pipeline is laid, the utilization rate of the pipeline is low, so that pipeline resources for laying the optical cable become more and more tense, and the original pipeline resources are difficult to meet the requirements of optical cable network extension. Some people put forward a solution for newly building a communication pipeline, however, the solution also faces the problems of high capital cost, high construction difficulty and certain damage to public facilities, so that the application value of the air-blown micro optical cable (referred to as air-blown micro cable for short) increasingly draws the attention of telecom operators.
Compared with the traditional optical cable, the air-blown micro cable has the advantages that the using amount of cabling materials and the processing cost of the micro cable with the same core number are greatly reduced, the structural size is small, the weight is light, and the optical fiber density is high. When laying, the mode that adopts high-pressure draught to blow can be directly blow the air-blowing micro cable and put current communication pipeline, greatly increased the utilization ratio of pipeline, saved the pipeline resource effectively, satisfy the construction demand of network dilatation, air-blowing simultaneously lays convenient and fast, can effectively shorten engineering construction cycle.
At present, the air-blown micro cable generally adopts a high-density polyethylene material as an outer protective layer, although blowing at a distance of 1000m to 2000m can be realized by adopting a high-pressure air blowing mode under theoretical design, the air-blown micro cable can be contacted with a pipe wall in the actual blowing process, and the high-density polyethylene has a relatively large friction coefficient, so that the advancing resistance of the air-blown micro cable is relatively large, and the air-blown distance of the optical cable is limited.
Therefore, how to increase the blowing distance of the blown micro-cable is the development direction of the blown micro-cable, and is a technical problem that a person skilled in the art needs to overcome.
Disclosure of Invention
The invention provides a spiral micro-groove type air-blowing micro-cable, manufacturing equipment and a manufacturing method, which aim to overcome the defects in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
in a first aspect, an embodiment of the present invention provides a spiral micro-groove type air-blowing micro cable, including a cable core and an outer sheath covering the cable core, where the outer wall of the outer sheath is provided with a spiral groove for guiding air to increase an air-blowing driving force.
Furthermore, in the spiral microgroove type air-blowing micro cable, a plurality of spiral grooves are formed;
the spiral grooves are uniformly distributed along the circumferential direction of the outer protective layer.
Further, in the spiral micro-groove type air-blowing micro cable, the spiral groove is in a V-shaped structure.
Further, in the spiral microgroove type air-blown micro cable, the width of the spiral groove is 1/20 of the circumference of the outer sheath;
the depth of the spiral groove is 1/2 of the thickness of the outer protective layer.
Furthermore, in the spiral micro-groove type air-blowing micro-cable, the cable core comprises a central reinforcing piece, a cushion layer, a plurality of optical fiber tubes and a yarn binding layer;
the central reinforcing piece is positioned inside the yarn binding layer;
the cushion layer is coated on the periphery of the central reinforcing piece;
the plurality of optical fiber tubes are uniformly arranged around the periphery of the cushion layer along the circumferential direction and are positioned inside the yarn binding layer;
the optical fiber tube comprises a sleeve and a plurality of optical fibers coated in the sleeve.
Furthermore, in the spiral microgroove type air-blowing micro cable, sleeve water-blocking substances are filled in the optical fiber tube;
and a cable core water-blocking substance is filled in the yarn binding layer.
Further, in the spiral micro-groove type air-blowing micro-cable, the central reinforcing member is a high-carbon steel wire.
In a second aspect, an embodiment of the present invention provides an air-blown micro-cable manufacturing apparatus, configured to manufacture a spiral micro-groove type air-blown micro-cable according to the first aspect, where the spiral micro-groove type air-blown micro-cable includes a cable core forming device and an outer sheath forming device;
the cable core forming device is used for forming a cable core;
the outer protective layer forming device is used for forming an outer protective layer with a spiral groove on the outer surface of the cable core;
the outer protective layer forming device comprises an extrusion molding machine head and an extrusion molding die;
the extrusion molding die is arranged in the extrusion molding machine head and comprises a die core and a die sleeve, and a flow channel is arranged between the die core and the die sleeve;
the die sleeve is provided with a tooth-shaped opening and is in transmission connection with a motor through a gear transmission mechanism, and the motor drives the die sleeve to rotate at a constant speed.
Furthermore, in the air-blowing micro cable manufacturing equipment, a plurality of teeth are arranged on the tooth-shaped opening;
the teeth are evenly distributed along the circumferential direction of the tooth-shaped opening.
In a third aspect, an embodiment of the present invention provides an air-blowing micro-cable manufacturing method, which is performed by using the air-blowing micro-cable manufacturing apparatus according to the second aspect, and the method includes:
forming the cable core by a cable core forming device;
the outer sheath material is extruded through the flow channel by the extrusion molding machine head and is extruded on the outer surface of the cable core, and the mold sleeve rotates at a constant speed under the driving of the motor in the extrusion molding process, so that the outer surface of the cable core forms the outer sheath with the spiral groove.
According to the spiral micro-groove type air-blowing micro-cable, the manufacturing equipment and the manufacturing method provided by the embodiment of the invention, the spiral groove is arranged on the outer wall of the outer protective layer of the air-blowing micro-cable, so that the air-blowing micro-cable can be uniformly wrapped by high-pressure air flow during laying under the condition of ensuring the original performance of the air-blowing micro-cable to be unchanged, the air-blowing micro-cable is always kept at the center of a pipeline, the friction between the air-blowing micro-cable and the pipeline wall in the transmission process is reduced, the air-blowing resistance is reduced, the blowing distance of the air-blowing micro-cable is effectively increased, and the spiral micro.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic front view of a spiral micro-groove type air-blown micro-cable according to an embodiment of the present invention;
FIG. 2 is a schematic side view of a spiral micro-groove type air-blown micro-cable according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a method for manufacturing an air-blown micro-cable according to an embodiment of the present invention.
Reference numerals:
the cable comprises an outer protective layer 1, a spiral groove 2, a central reinforcing part 3, a cushion layer 4, a yarn binding layer 5, a sleeve 6, an optical fiber 7, a sleeve water-blocking substance 8 and a cable core water-blocking substance 9.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the referred devices or elements must have the specific orientations, be configured to operate in the specific orientations, and thus are not to be construed as limitations of the present invention.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Example one
Referring to fig. 1 to 2, an embodiment of the present invention provides a spiral micro-groove type air-blowing micro cable, including a cable core and an outer protective layer 1 covering the cable core, where the outer wall of the outer protective layer 1 is provided with a spiral groove 2 for guiding air to increase air-blowing driving force.
It should be noted that, what needs to be improved in this embodiment is only the outer sheath 1 covering the outer surface of the cable core, specifically, the spiral groove 2 that spirals along the length direction of the cable core is added to the outer surface of the outer sheath 1, and the cable core is a conventional cable core structural design, and no additional improvement is needed, and the general structural size of the air-blown micro cable product does not change, and the universality of the product and the laid traditional product can be ensured.
Illustratively, the cable core comprises a central reinforcing member 3, a cushion layer 4, a plurality of optical fiber tubes and a yarn binding layer 5;
the central reinforcing piece 3 is positioned inside the yarn binding layer 5;
the cushion layer 4 is coated on the periphery of the central reinforcing piece 3;
the plurality of optical fiber tubes are uniformly arranged around the periphery of the cushion layer 4 along the circumferential direction and are positioned inside the yarn binding layer 5;
the optical fiber tube comprises a sleeve 6 and a plurality of optical fibers 7 coated in the sleeve 6.
Preferably, the interior of the optical fiber tube is filled with a sleeve water-blocking substance 8, such as fiber paste; the inside of the binding yarn layer 5 is filled with a cable core water-blocking substance 9, such as cable paste.
The central reinforcing member 3 is a high carbon steel wire.
Preferably, the spiral groove 2 is in a V-shaped structure, but may be in other shapes as long as air guiding is realized to increase the pneumatic pushing force. Specifically, the width of the spiral groove 2 is 1/20 of the circumference of the outer sheath 1, and the depth of the spiral groove 2 is 1/2 of the thickness of the outer sheath 1.
In the present embodiment, the number of the spiral grooves 2 may be one or several, but is preferably several; the spiral grooves 2 are uniformly distributed along the circumferential direction of the outer protective layer 1, and the outer protective layer 1 is shaped like a gear when viewed from the front.
Description of the principle: lay when blowing, the air-blowing micro cable conveys forward under high-pressure draught's drive, passes gas through the helicla flute of many densities within a definite time, guarantees at the air-blowing in-process, and high-pressure draught can evenly wrap up the air-blowing micro cable and make the air-blowing micro cable remain throughout at pipeline central point and put, can reduce with the friction of pipe wall in the data send to supplementary increase air feed driving force by the air current in the helicla flute, thereby effectively improve the blowing distance of air-blowing micro cable.
According to the spiral micro-groove type air-blowing micro-cable provided by the embodiment of the invention, the spiral groove is formed in the outer wall of the outer protective layer of the air-blowing micro-cable, so that the air-blowing resistance can be reduced, the blowing distance of the air-blowing micro-cable can be increased under the condition of ensuring the original performance of the air-blowing micro-cable to be unchanged, and the air-blowing micro-cable has higher popularization and application values.
Example two
The embodiment of the invention provides air-blowing micro-cable manufacturing equipment, which is used for manufacturing the spiral micro-groove type air-blowing micro-cable according to the embodiment one and comprises a cable core forming device and an outer protective layer forming device;
the cable core forming device is used for forming a cable core;
the outer protective layer forming device is used for forming an outer protective layer with a spiral groove on the outer surface of the cable core;
the outer protective layer forming device comprises an extrusion molding machine head and an extrusion molding die;
the extrusion molding die is arranged in the extrusion molding machine head and comprises a die core and a die sleeve, and a flow channel is arranged between the die core and the die sleeve;
the die sleeve is provided with a tooth-shaped opening and is in transmission connection with a motor through a gear transmission mechanism, and the motor drives the die sleeve to rotate at a constant speed.
Preferably, the number of the teeth on the tooth-shaped opening is several;
the teeth are evenly distributed along the circumferential direction of the tooth-shaped opening.
Wherein, the motor adopts a small motor with the power of less than 1000W. During extrusion molding, the motor drives the die sleeve to rotate at a constant speed, and an outer protective layer with a spiral groove can be formed on the outer surface of the cable core by matching with the tooth-shaped opening of the die sleeve.
It should be noted that the cable core forming device is an essential component of the air-blowing micro cable manufacturing equipment, and functions to form the cable core required by the outer sheath forming device, but since the device is not a design point of the present embodiment, the present embodiment does not improve the device, and additionally, the device is implemented in the prior art, and belongs to the common general knowledge of the skilled person, so the present embodiment is not further described.
According to the air-blowing micro cable manufacturing equipment provided by the embodiment of the invention, the outer protective layer forming device is improved, and the mold sleeve is improved and designed into the rotatable mold sleeve with the tooth-shaped opening, so that the spiral groove is added on the outer wall of the outer protective layer of the air-blowing micro cable, and the air-blowing micro cable can be uniformly wrapped by high-pressure air flow during laying under the condition of ensuring the original performance of the air-blowing micro cable to be unchanged, so that the air-blowing micro cable is always kept at the center of a pipeline, the friction between the air-blowing micro cable and the pipe wall in the transmission process is reduced, the air-blowing resistance is reduced, the blowing distance of the air-blowing micro cable is effectively increased, and the air-blowing micro.
EXAMPLE III
The embodiment of the invention provides a manufacturing method of an air-blowing micro cable, which is implemented by adopting the manufacturing equipment of the air-blowing micro cable in the embodiment II, and comprises the following steps:
s301, forming a cable core through a cable core forming device;
it should be noted that the cable core includes a central reinforcement, a cushion layer, a yarn-tying layer, a sleeve water-blocking substance, a cable core water-blocking substance, a plurality of sleeves, and a plurality of optical fibers coated in the sleeves, and this step S301 involves various processes of cable core molding, such as:
(1) coloring the optical fiber;
in the coloring process, the optical power of the UV curing lamp is accurately controlled by reasonably controlling the tension of the optical fiber take-up and pay-off wire, so that all indexes of the colored optical fiber meet the process and technical requirements;
(2) feeding the colored optical fibers into the sleeve respectively;
in the sleeve process, a proper extrusion die is selected, the extrusion molding amount of materials is uniformly controlled, a certain amount of sleeve water-blocking substances such as fiber paste are filled in the sleeve, and the requirements of the outer diameter of the sleeve and the excess length of the optical fiber are met by adopting specific water temperature and tension setting;
(3) uniformly distributing a plurality of sleeves around the periphery of the central reinforcing member under the binding of the binding yarn layer, and then twisting to form a cable core, wherein in the process, a certain amount of cable core water-blocking substances such as cable paste are filled in the binding yarn layer;
the central reinforcing member is made of conventional high-carbon steel wire.
S302, extruding the outer protective layer material through the flow channel by the extrusion molding machine head on the outer surface of the cable core, wherein the mold sleeve rotates at a constant speed under the driving of the motor in the extrusion molding process, so that the outer protective layer with a spiral groove is formed on the outer surface of the cable core.
It should be noted that the mold core and the mold sleeve are internally provided with a channel penetrating from the front end to the rear end, the cable core is placed in the channel in the outer sheath forming process, an outer sheath material generated by the extrusion molding machine head enters a flow channel between the mold core and the mold sleeve and is extruded on the outer surface of the cable core from a tooth-shaped opening of the mold sleeve, and the mold sleeve uniformly rotates in the process; and cooling the outer protective layer by a cooling water tank after the outer protective layer is formed, and then taking up the wire by a take-up machine under the traction of a traction machine.
According to the manufacturing method of the air-blowing micro cable provided by the embodiment of the invention, the die sleeve with the tooth-shaped opening is extruded and simultaneously rotated at a constant speed, so that the outer surface of the cable core can form the outer protective layer with the spiral groove, the original performance of the air-blowing micro cable is ensured to be unchanged, high-pressure air flow can uniformly wrap the air-blowing micro cable when the air-blowing micro cable is laid, the air-blowing micro cable is always kept at the center of a pipeline, the friction between the air-blowing micro cable and the pipe wall in the transmission process is reduced, the air-blowing resistance is reduced, the blowing distance of the air-blowing micro cable is effectively increased, and the manufacturing method has high popularization and application values.
The foregoing description of the embodiments has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same elements or features may also vary in many respects. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.
Example embodiments are provided so that this disclosure will be thorough and will fully convey the scope to those skilled in the art. Numerous details are set forth, such as examples of specific parts, devices, and methods, in order to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that example embodiments may be embodied in many different forms and that neither should be construed to limit the scope of the disclosure. In certain example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail.
The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises" and "comprising" are intended to be inclusive and therefore specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed and illustrated, unless explicitly indicated as an order of performance. It should also be understood that additional or alternative steps may be employed.
When an element or layer is referred to as being "on" … … "," engaged with "… …", "connected to" or "coupled to" another element or layer, it can be directly on, engaged with, connected to or coupled to the other element or layer, or intervening elements or layers may also be present. In contrast, when an element or layer is referred to as being "directly on … …," "directly engaged with … …," "directly connected to" or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship of elements should be interpreted in a similar manner (e.g., "between … …" and "directly between … …", "adjacent" and "directly adjacent", etc.). As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region or section from another element, component, region or section. Unless clearly indicated by the context, use of terms such as the terms "first," "second," and other numerical values herein does not imply a sequence or order. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
Spatially relative terms, such as "inner," "outer," "below," "… …," "lower," "above," "upper," and the like, may be used herein for ease of description to describe a relationship between one element or feature and one or more other elements or features as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below … …" can encompass both an orientation of facing upward and downward. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted.
Claims (10)
1. The utility model provides a spiral microgroove type air-blowing micro cable, includes cable core and cladding the outer jacket of cable core, its characterized in that, the outer wall of outer jacket is equipped with the helicla flute that is used for the air guide in order to increase the air feed driving force.
2. The spiral micro-groove air-blown micro-cable of claim 1, wherein there are a plurality of the spiral grooves;
the spiral grooves are uniformly distributed along the circumferential direction of the outer protective layer.
3. The spiral micro-groove air-blown micro-cable of claim 1, wherein the spiral groove is of a V-shaped configuration.
4. The spiral micro-groove air-blown micro-cable of claim 1, wherein the width of the spiral groove is 1/20 the circumference of the outer sheath;
the depth of the spiral groove is 1/2 of the thickness of the outer protective layer.
5. The spiral micro-groove type air-blowing micro-cable of claim 1, wherein the cable core comprises a central reinforcement, a cushion layer, a plurality of optical fiber tubes, and a yarn tie layer;
the central reinforcing piece is positioned inside the yarn binding layer;
the cushion layer is coated on the periphery of the central reinforcing piece;
the plurality of optical fiber tubes are uniformly arranged around the periphery of the cushion layer along the circumferential direction and are positioned inside the yarn binding layer;
the optical fiber tube comprises a sleeve and a plurality of optical fibers coated in the sleeve.
6. The spiral microgroove type air-blown micro-cable as claimed in claim 5, wherein the inside of the optical fiber tube is filled with a jacket water blocking substance;
and a cable core water-blocking substance is filled in the yarn binding layer.
7. The spiral micro-groove air-blown micro-cable of claim 5, wherein the central strength member is a high carbon steel wire.
8. An air-blowing micro-cable manufacturing device for manufacturing the spiral micro-groove type air-blowing micro-cable according to any one of claims 1 to 7, comprising a cable core forming device and an outer sheath forming device;
the cable core forming device is used for forming a cable core;
the outer protective layer forming device is used for forming an outer protective layer with a spiral groove on the outer surface of the cable core;
the outer protective layer forming device comprises an extrusion molding machine head and an extrusion molding die;
extrusion molding mould sets up the inside of extrusion molding aircraft nose, including mold core and die sleeve, the mold core with be equipped with runner, its characterized in that between the die sleeve:
the die sleeve is provided with a tooth-shaped opening and is in transmission connection with a motor through a gear transmission mechanism, and the motor drives the die sleeve to rotate at a constant speed.
9. The air-blowing micro-cable manufacturing apparatus as claimed in claim 8, wherein there are a plurality of teeth on the tooth-shaped opening;
the teeth are evenly distributed along the circumferential direction of the tooth-shaped opening.
10. A method for manufacturing an air-blown micro-cable, which is performed by the air-blown micro-cable manufacturing apparatus according to any one of claims 8 to 9, the method comprising:
forming the cable core by a cable core forming device;
the outer sheath material is extruded through the flow channel by the extrusion molding machine head and is extruded on the outer surface of the cable core, and the mold sleeve rotates at a constant speed under the driving of the motor in the extrusion molding process, so that the outer surface of the cable core forms the outer sheath with the spiral groove.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010921417.7A CN111965776A (en) | 2020-09-04 | 2020-09-04 | Spiral micro-groove type air-blowing micro-cable, manufacturing equipment and manufacturing method |
| PCT/CN2021/115883 WO2022048558A1 (en) | 2020-09-04 | 2021-09-01 | Air-blowing micro cable with spiral micro-flute, and manufacturing apparatus and manufacturing method therefor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010921417.7A CN111965776A (en) | 2020-09-04 | 2020-09-04 | Spiral micro-groove type air-blowing micro-cable, manufacturing equipment and manufacturing method |
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| CN111965776A true CN111965776A (en) | 2020-11-20 |
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| WO (1) | WO2022048558A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113900205A (en) * | 2021-10-26 | 2022-01-07 | 长飞光纤光缆股份有限公司 | Water laying optical cable with spiral grooves in surface |
| WO2022048558A1 (en) * | 2020-09-04 | 2022-03-10 | 江苏亨通光电股份有限公司 | Air-blowing micro cable with spiral micro-flute, and manufacturing apparatus and manufacturing method therefor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116009161A (en) * | 2022-12-20 | 2023-04-25 | 长飞光纤光缆股份有限公司 | Air-blown optical fiber bundle optical cable and preparation method thereof |
| CN115877525A (en) * | 2022-12-20 | 2023-03-31 | 长飞光纤光缆股份有限公司 | Air-blowing optical fiber bundle optical cable preparation device |
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| CN111965776A (en) * | 2020-09-04 | 2020-11-20 | 江苏亨通光电股份有限公司 | Spiral micro-groove type air-blowing micro-cable, manufacturing equipment and manufacturing method |
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- 2020-09-04 CN CN202010921417.7A patent/CN111965776A/en active Pending
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| GB2156539A (en) * | 1984-03-29 | 1985-10-09 | Bicc Plc | Manufacture of optical guide assembly |
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| WO2004066008A1 (en) * | 2003-01-24 | 2004-08-05 | Lg Cable Ltd. | Optical fiber unit for air blown installation, method and apparatus for manufacturing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022048558A1 (en) * | 2020-09-04 | 2022-03-10 | 江苏亨通光电股份有限公司 | Air-blowing micro cable with spiral micro-flute, and manufacturing apparatus and manufacturing method therefor |
| CN113900205A (en) * | 2021-10-26 | 2022-01-07 | 长飞光纤光缆股份有限公司 | Water laying optical cable with spiral grooves in surface |
| CN113900205B (en) * | 2021-10-26 | 2022-11-18 | 长飞光纤光缆股份有限公司 | Water laying optical cable with spiral grooves in surface |
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| WO2022048558A1 (en) | 2022-03-10 |
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