KR102093268B1 - An extruder for controlling the position and center line of the optical cable - Google Patents

Abstract

The present invention relates to an extruder capable of controlling the position and eccentricity of an optical core wire, and more particularly, to a method for preventing a plurality of optical core wires (or core wires) constituting an optical cable from being eccentric in the coating material.
To this end, the extruder capable of controlling the position and eccentricity of the optical core wire of the present invention is formed by the first 1-1 hole formed in the center and the two 1-2 formed at points spaced apart from each other by the center of the 1-1 hole A first optical core guide having holes and having a predetermined thickness; It is formed at a point spaced apart from the first optical core guide, a 1-3 hole corresponding to the 1-1 hole is formed, and a 1-4 hole corresponding to the 1-2 hole is formed. , The 1-3 holes are first nipples protruding a predetermined distance to the outside; A first die formed at a point spaced apart from the first nipple and having holes 1-5 corresponding to the holes 1-3 and 1-4; Two 2-2 holes formed at a point spaced apart from the first die and formed at a point spaced apart from each other by a distance from each other around the 2-1 hole and the 2-1 hole formed in the center. And two second-third holes formed at points spaced apart from each other by a distance from the second-first hole, and having a second thickness. It is formed at a point spaced apart from the second optical core guide by a certain distance, a second hole corresponding to the second hole 1-4 is formed, and a second hole corresponding to the second hole 2-2 and the hole 2-3. -5 holes are formed, the 2-4 holes are the second nipple protruding a predetermined distance to the outside; And a first die formed at a point spaced apart from the second nipple by a 2-6 hole corresponding to the 2-4 hole and the 2-5 hole.

Description

An extruder for controlling the position and center line of the optical cable

The present invention relates to an extruder capable of controlling the position and eccentricity of an optical core wire, and more particularly, to a method for preventing a plurality of optical core wires (or core wires) constituting an optical cable from being eccentric in the coating material.

In general, wires or optical cables form a sheath to protect the optical core from insulation and external impact.

The coating of the optical core wire is made by a wire extruder. In the conventional wire extruder, a nipple having a hollow through which the optical core wire can pass, a resin supply unit for supplying synthetic resin to surround the outer peripheral surface of the optical core discharged from the nipple, and a synthetic resin outer peripheral surface of the optical core wire It includes a die that guides to discharge while wrapping.

However, when forming the covering material, it is important that the optical core is positioned at the center of the covering material. If the optical core wire is not located in the center of the coating material and is eccentrically extended, an external impact can be transmitted as the distance between the optical core and the outer peripheral surface of the coating material is shortened, and when the coating material is damaged, the possibility of optical core wire exposure increases. .

Therefore, in the prior art, the thickness deviation adjustment block surrounding the nipple was installed to be adjustable vertically and horizontally so that the optical core line could be positioned at the center of the coating material, and the thickness deviation adjustment block was moved to adjust the optical core line to be located at the center of the coating material. .

However, the conventional thickness deviation adjustment block was not easy to correct when the optical center line was slightly displaced from the center of the coating material because the position was changed through the process of tightening and loosening the screw. Accordingly, various schemes have been proposed in which the optical core is positioned at the center of the coating material.

Korean Registered Patent No. 10-1764196 (Invention name: Extrusion head for manufacturing double color coated wire) Korean Registered Patent No. 10-1663360

The problem to be solved by the present invention is to propose a head nozzle of an extruder that can easily adjust the position of the optical core so that the optical core of the wire or optical cable can be located at the center of the coating material.

Another problem to be solved by the present invention is to propose an optical core wire guide capable of minimizing shaking of an optical core or a core wire before being fed to the extruder head.

Another problem to be solved by the present invention is to propose a method for guiding the position of a core wire through an accurate design of a nipple and a die constituting an extruder.

To this end, the extruder capable of controlling the position and eccentricity of the optical core wire of the present invention is formed by the first 1-1 hole formed in the center and the two 1-2 formed at points spaced apart from each other by the center of the 1-1 hole. A first optical core guide having holes and having a predetermined thickness; It is formed at a point spaced apart from the first optical core guide, a 1-3 hole corresponding to the 1-1 hole is formed, and a 1-4 hole corresponding to the 1-2 hole is formed. , The 1-3 holes are first nipples protruding a predetermined distance to the outside; A first die formed at a point spaced apart from the first nipple and having holes 1-5 corresponding to the holes 1-3 and 1-4; Two 2-2 holes formed at a point spaced apart from the first die and formed at a point spaced apart from each other by a distance from each other around the 2-1 hole and the 2-1 hole formed in the center. And two second-third holes formed at points spaced apart from each other by a distance from the second-first hole, and having a second thickness. It is formed at a point spaced apart from the second optical core guide by a certain distance, a second hole corresponding to the second hole 1-4 is formed, and a second hole corresponding to the second hole 2-2 and the hole 2-3. -5 holes are formed, the 2-4 holes are the second nipple protruding a predetermined distance to the outside; And a first die formed at a point spaced apart from the second nipple by a 2-6 hole corresponding to the 2-4 hole and the 2-5 hole.

The extruder capable of controlling the position and eccentricity of the optical core according to the present invention has an advantage of easily adjusting the position of the optical core so that the optical core of the wire or optical cable is located at the center of the coating material, and the extruder head using the optical core guide It is possible to minimize the shaking of the optical core or core wire before being supplied to the furnace.

In addition, the extruder capable of controlling the position and eccentricity of the optical core wire proposed in the present invention has an effect of guiding the location of the core wire through accurate design of the nipple and the dice.

1 shows a cross section of an optical cable according to an embodiment of the present invention.
Figure 2 shows a tube according to an embodiment of the present invention.
3 shows a microsheath with a four-mouth clover-shaped hole formed therein.
4 shows an optical core guide for manufacturing an optical cable having a diameter of 3.3 mm according to an embodiment of the present invention.
Figure 5 shows the configuration of a nipple for manufacturing an optical cable having a diameter of 3.3 mm according to an embodiment of the present invention.
6 shows a structure of a die for manufacturing an optical cable having a diameter of 3.3 mm according to an embodiment of the present invention.
7 shows an optical core guide for manufacturing an optical cable having a diameter of 6.0 mm according to an embodiment of the present invention.
8 shows a configuration of a nipple for manufacturing an optical cable having a diameter of 6.0 mm according to an embodiment of the present invention.
9 shows the structure of a die for manufacturing an optical cable having a diameter of 6.0 mm according to an embodiment of the present invention.

The foregoing and additional aspects of the present invention will become more apparent through preferred embodiments described with reference to the accompanying drawings. Hereinafter, it will be described in detail so that those skilled in the art through the embodiments of the present invention can easily understand and reproduce.

1 shows a cross section of an optical cable according to an embodiment of the present invention. Hereinafter, a cross-sectional structure of the optical cable proposed in the present invention will be described in detail with reference to FIG. 1.

According to FIG. 1, the optical cable includes a plurality of optical core wires, microsheaths, first aramid yarns, second aramid yarns, first waterproof yarns, second waterproof yarns, first outer jackets, second outer jackets, and lip cords . In addition, optical cables include FRP (Fiber Reinforced Plastics).

In FIG. 1, four optical cores 102 are formed inside the microsheath, and the four optical cores 102 are fixed in position by the microsheath 104. Microsheath 104 should be easy to peel. The first aramid yarn 106 is formed outside the microsheath 104. A first waterproof yarn 108 is formed on the outside of the first aramid yarn 106, and the first waterproof yarn 108 performs a waterproof function to prevent water from penetrating into the microsyst.

In the optical cable proposed in FIG. 1, two aramid yarns are formed. The first aramid yarn 106 is located inside the first outer jacket 112, and the second aramid yarn 114 is formed between the first outer jacket 112 and the second outer jacket 120. Of course, the second outer jacket 120 is formed outside the first outer jacket 112.

A lip cord 118 is formed between the second outer jacket 120 and the second aramid yarn 114. The lip cord 118 functions to easily cover the second outer jacket 120. That is, the second outer jacket 120 is easily separated from the optical cable by a method in which the operator pulls the lip cord 118.

In addition, the optical cable includes FRP. FRP performs the function of maintaining the strength of the optical cable. According to FIG. 1, the first FRP 110 is located on the first outer jacket 112 and the second FRP 122 is located on the second outer jacket 120. To further explain, the lip cord 118 is located between the second aramid yarn 114 and the second outer jacket 120, while the second RFP 122 is located on the second outer jacket 120. . Therefore, the strength of the optical cable is maintained by the second FRP 122 located on the second outer jacket 120. On the other hand, in order to separate the second outer jacket 120 from the optical cable, the lip cord 118 formed on the second outer jacket 120 is used. Of course, in this case, the second FRP 122 formed on the second outer jacket 120 is also separated from the optical cable.

As described above, the present invention places the lip cord 118 between the second aramid yarn 114 and the second outer jacket 120, while the FRP is placed on the first outer jacket 112 or the second outer jacket 120. Guide to be located on. In addition, the FRP proposed in the present invention is formed to be positioned relatively inside on the first outer jacket 112 or the second outer jacket 120. To further explain, it is preferable that the FRP performing the function of maintaining the strength of the optical cable is not exposed to the outside even when a part of the first outer jacket 112 or the second outer jacket 120 is damaged by an external stimulus. Do. Accordingly, the FRP guides the outer jacket to be positioned relatively inside on the first outer jacket 112 or the second outer jacket 120 so as not to be exposed to the outside even when the outer jacket is damaged. In more detail, when the FRP is formed to be positioned relatively outside on the first outer jacket 112 or the second outer jacket 120, the first outer jacket 112 or the second outer jacket (by an external stimulus) A part of 120) is damaged, and in this case, the FRP is also exposed to the outside, thereby increasing the possibility of separation from the optical cable.

As described above, the plurality of optical cores should be located at the correct points in the microcis. If a plurality of optical core wires are not located at an exact point in the microsyst, the optical loss increases, and in severe cases, the optical core wire is disconnected.

To further explain, the microcises, which are a plurality of colored optical cores, red, blue, green, and yellow, should be fixedly inserted at a certain position, and if the optical core is twisted, optical loss increases. Therefore, the present invention proposes a method in which a plurality of optical cores are fixed at a certain position on a microsyst.

Figure 2 shows a tube according to an embodiment of the present invention. Hereinafter, a tube according to an embodiment of the present invention will be described in detail with reference to FIG. 2.

According to FIG. 2, the tube has a structure conforming to the arrangement of the plurality of optical core wires described above. That is, the tube has a four-mouth clover-shaped hole formed therein, and an optical core passes through the formed hole. In particular, the tube proposed in the present invention is inserted into a nipple constituting the nozzle head. To further explain, make four holes through which the optical core line passes through the nipple, and assemble by making a tube that can be combined with the corresponding part of the nipple.

In addition, the present invention is manufactured to form a four-mouth clover-shaped hole in the cross section of the microsheath. 3 shows a microsheath with a four-mouth clover-shaped hole formed therein.

In relation to the present invention, two methods are required to guide the precise positions of a plurality of optical cores in a microsyst, and first, the optical core guides that can minimize the shaking of the optical core and control the position before being covered through the extruder head. Is required, and accurate design and manufacture of nipples and dice, which are the core parts of the extruder head manufactured in the form of optical cables, are required. Hereinafter, the optical core guide proposed in the present invention will be described according to the diameter of the optical cable.

4 shows an optical core guide for manufacturing an optical cable having a diameter of 3.3 mm according to an embodiment of the present invention. Hereinafter, an optical core guide according to an embodiment of the present invention will be described in detail with reference to FIG. 4. In particular, FIG. 4 shows a method for guiding the position of the optical core wire when the optical cable having a diameter of 3.3 mm is coated.

According to FIG. 4, a plurality of holes are formed in the optical core guide 400. The hole formed in the optical core guide 400 is designed in consideration of the distance between the head and the optical core guide. The optical core guide 400 forms two first-2 holes 400b having a diameter of 0.6 mm in consideration of the first FRP 110 having a diameter of 0.5 mm. In addition, considering the position of the first FRP 110, P.C.D is 3.42 mm. In addition, in the center, a micro sheath 104 having a diameter of 0.9 mm, a first waterproof yarn 108, and a first 1-hole 110a having a diameter of 1.45 mm are formed so that the first amarid yarn 106 can penetrate therethrough. do. In addition, in order to prevent the hole formed in the optical core guide 400 from being worn by a core wire such as the first FRP 110 and the first aramid yarn 106, the location of the optical core guide 400 is cemented carbide. To improve the strength.

Hereinafter, nipples and dice for manufacturing an optical cable having a diameter of 3.3 mm will be described. For reference, the optical cable having a diameter of 3.3 mm means a configuration formed inside the first outer jacket and the first outer jacket in FIG. 1.

Figure 5 shows the configuration of a nipple for manufacturing an optical cable having a diameter of 3.3 mm according to an embodiment of the present invention. According to FIG. 5, the nipple 500 is formed with a 1-3 hole 500a corresponding to the 1-1 hole 400a of the optical core guide in the center, and the 1-2 of the optical core guide on both sides of the upper and lower sides. 1-4 holes 500b corresponding to the holes 400b are formed. The 1-3 holes 500a formed in the center of the nipple 500 protrude outward in a cylindrical shape having a predetermined thickness. The first FRP 110 is supplied to the 1-4 holes 500b formed in the nipple 500, and the microsheath 104, the first amarized yarn 106, and the first FRP 110 are supplied to the 1-3 holes 500a. 1 Waterproof yarn 108 is supplied. The inside of the 1-3 hole is 1.45 mm in thickness, and the thickness of the protruding 1-3 hole is ((1.8-1.45) / 2) mm. The diameter of holes 1-4 is 0.6 mm, and P.C.D is 3.42 mm.

6 shows a structure of a die for manufacturing an optical cable having a diameter of 3.3 mm according to an embodiment of the present invention. The die 600 is the first FRP 110, the micro sheath 104, the first amarized yarn 106, and the first waterproof yarn by the 1-3 holes 500a and the 1-4 holes 500b. The nipple 500 is spaced apart from the nipple 500 so that the resin covering 108 is supplied, and the resin is supplied at spaced apart intervals. The supplied resin covers the first FRP 110, the microsheath 104, the first amarid yarn 106 and the first waterproof yarn 108, thereby forming a first outer jacket 112. In addition, the die 600 is formed with a first-5 holes 600a so that the optical cable coated with the first outer jacket 112 is drawn out, and the diameter of the first-5 holes 600a is 3.5 mm.

Hereinafter, a method of manufacturing an optical cable including a configuration formed inside the second outer jacket and the second outer jacket will be described. That is, let's find out how to manufacture an optical cable with a diameter of 6.0 mm.

As described above, two methods are required to guide the exact position of the optical cores. First, an optical core guide capable of minimizing the shaking of the optical core and controlling its position is required before passing through the extruder head and covering the final optical cable. Accurate design and manufacture of nipples and dice, which are the core parts of the extruder head manufactured in the form, are required. Hereinafter, the optical core guide proposed in the present invention will be described.

7 shows an optical core guide for manufacturing an optical cable having a diameter of 6.0 mm according to an embodiment of the present invention. Hereinafter, an optical core guide for manufacturing an optical cable having a diameter of 6.0 mm according to an embodiment of the present invention will be described with reference to FIG. 7.

According to FIG. 7, a plurality of holes are formed in the optical core guide 700. The hole formed in the optical core guide is designed in consideration of the distance between the head and the optical core guide. The optical core guide 700 forms two 2-2 holes 700b having a diameter of 0.6 mm in consideration of the second FRP 122 having a diameter of 0.5 mm, and considers the position of the second FRP 122 The PCD is 6.55 mm. The optical core guide 700 forms two 2-3 holes 700c having a diameter of 1.1 mm in consideration of the lip cord 118, and the PCD is 6.09 mm in consideration of the position of the lip cord 118. do. In addition to the center, the first outer jacket 112 having a diameter of 3.3 mm, the second 1-1 hole 700a having a diameter of 4.5 mm, so that the second amarid yarn 114 and the second waterproof yarn 116 can penetrate therethrough. To form. In addition, in order to prevent the hole formed in the optical core guide 700 from being worn by the core wires such as the second FRP 122 and the second aramid yarn 114, the position of the optical core guide 700 is cemented carbide. To improve the strength.

Hereinafter, nipples and dice for manufacturing a product having a diameter of 6.0 mm will be described. For reference, a product having a diameter of 6.0 mm means a configuration formed inside the second outer jacket and the second outer jacket in FIG. 1.

8 shows a configuration of a nipple for manufacturing an optical cable having a diameter of 6.0 mm according to an embodiment of the present invention. According to FIG. 8, the nipple 800 is formed with a 2-4 hole 800a corresponding to the 2-1 hole 700a of the optical core guide in the center, and 2-2 of the optical core guide on both sides of the upper and lower sides. 2-5 holes 800b corresponding to holes 700b and 2-3 holes 700c are formed. The 2-4 holes 800a formed in the center of the nipple protrude to the outside in the form of a cylinder having a certain thickness. The second FRP 122 and the lip cord 118 are supplied to the 2-5 holes 800b formed in the nipple 800, and the first outer jacket 112 and the second are provided to the 2-4 holes 800a. Amarid yarn 114 and second waterproof yarn 116 are supplied.

9 shows the structure of a die for manufacturing an optical cable having a diameter of 6.0 mm according to an embodiment of the present invention. The die 900 is the first outer jacket 112, the second FRP 122, the lip cord 118, the second aramid yarn (2) by the 2-4 holes 800a and the 2-5 holes 800b. 114) and the nipple 800 is spaced apart from the nipple 800 so that the resin covering the second waterproof yarn 116 is supplied, and the resin is supplied at spaced apart intervals. The supplied resin covers the first outer jacket 112, the second FRP 122, the lip cord 118, the second aramid yarn 114, and the second waterproof yarn 116, thereby causing the second outer jacket 120 is formed. In addition, the die is formed with a 2-6 hole 900a so that the optical cable covered with the second outer jacket 120 is drawn out, and the diameter of the 2-6 hole 900a is 6.8 mm.

The present invention has been described with reference to one embodiment shown in the drawings, but this is only exemplary, and those skilled in the art will understand that various modifications and other equivalent embodiments are possible therefrom. .

100: optical cable 102: optical core
104: microsis 106: first aramid yarn
108: first waterproof yarn 110: first FRP
112: first outer jacket 114: second aramid yarn
116: second waterproof yarn 118: lip code
120: second outer jacket 122: second FRP
400, 700: Optical core guide
500, 800: nipple 600, 900: die

Claims (6)

A first optical core guide including a first-first hole formed in the center and two first-second holes formed at points spaced apart from each other by a distance from the first-first hole;
It is formed at a point spaced apart from the first optical core guide, a 1-3 hole corresponding to the 1-1 hole is formed, and a 1-4 hole corresponding to the 1-2 hole is formed. , The 1-3 holes are first nipples protruding a predetermined distance to the outside; And
It is formed at a point spaced apart from the first nipple by a predetermined distance, and includes a first die formed with holes 1-5 corresponding to the holes 1-3 and 1-4,
The first and second holes 1-3, the micro-sheath, the first aramid yarn and the first waterproof yarn with four optical cores penetrated therein,
A first FRP (fiber-reinforced plastic) is penetrated through the 1-2 holes and the 1-4 holes,
A first outer jacket with a microsheath, a first aramid yarn, a first waterproof yarn, and a first FRP with a built-in optical core is formed by the resin supplied between the first nipple and the first die, and the first outer The jacket is drawn out through the 1-5 holes,
The first nipple is the position and eccentricity of the optical core, characterized in that a tube having a four-mouth clover-shaped hole in which each of the four optical cores is individually accommodated is coupled so that the optical core is fixed at a certain position on the microsis. Controllable extruder.
According to claim 1,
Two 2-2 holes formed at a point spaced apart from the first die and formed at a point spaced apart from each other by a distance from each other around the 2-1 hole and the 2-1 hole formed in the center. And two second-third holes formed at points spaced apart from each other by a distance from the second-first hole, and having a second thickness.
It is formed at a point spaced apart from the second optical core guide by a certain distance, a second hole corresponding to the second hole 1-4 is formed, and a second hole corresponding to the second hole 2-2 and the hole 2-3. -5 holes are formed, the 2-4 holes are the second nipple protruding a predetermined distance to the outside;
And a second die formed at a point spaced apart from the second nipple by a second distance between holes 2-4 and 2-6. Extruder with eccentric control.
The extruder of claim 2, wherein the 2-3 hole is formed at a relatively long distance from the 2-1 hole compared to the 2-2 hole.
The extruder of claim 3, wherein the second or third hole is through a second FRP, and the second or second hole is through a lip cord.
delete The method of claim 4,
A first outer jacket, a second aramid yarn, and a second waterproof yarn are penetrated through the 2-1 hole and the 2-4 hole,
A lip cord is penetrated through the 2-2 hole, and a second FRP (fiber reinforced plastic) is penetrated through the 2-3 hole,
The lip cord and the second FRP pass through the 2-5 holes,
The first outer jacket, the second aramid yarn, the second waterproof yarn, the second FRP and the second outer jacket with the lip cord are formed by the resin supplied between the second nipple and the second die, and the second The outer jacket is an extruder capable of controlling the position and eccentricity of the optical core, characterized in that it is drawn out through the 2-6 holes.

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