KR960009317B1 - Extruding method and apparatus for communication cable - Google Patents
Extruding method and apparatus for communication cable Download PDFInfo
- Publication number
- KR960009317B1 KR960009317B1 KR1019930003900A KR930003900A KR960009317B1 KR 960009317 B1 KR960009317 B1 KR 960009317B1 KR 1019930003900 A KR1019930003900 A KR 1019930003900A KR 930003900 A KR930003900 A KR 930003900A KR 960009317 B1 KR960009317 B1 KR 960009317B1
- Authority
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- South Korea
- Prior art keywords
- tube
- cable
- resin
- communication cable
- resin tube
- Prior art date
Links
- 238000004891 communication Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 37
- 229920005989 resin Polymers 0.000 claims abstract description 37
- 238000001125 extrusion Methods 0.000 claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2623/00—Use of polyalkenes or derivatives thereof for preformed parts, e.g. for inserts
- B29K2623/10—Polymers of propylene
- B29K2623/12—PP, i.e. polypropylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2903/00—Use of resin-bonded materials as mould material
- B29K2903/04—Inorganic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2905/00—Use of metals, their alloys or their compounds, as mould material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0012—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular thermal properties
- B29K2995/0015—Insulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3462—Cables
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
제1도는 종래의 방법에 따른 견인선 입입방법을 보여주는 도면이고,1 is a view showing a traction line entry method according to a conventional method,
제2도는 본 발명에 따른 통신 케이블 매설용 견인선 인입 장치의 압출 금형의 단면도이고,2 is a cross-sectional view of an extrusion die of a telecommunication wire embedding apparatus for embedding a communication cable according to the present invention;
제3도는 본 발명에 따른 통신 케이블 매설용 견인선 인입을 위한 압출 금형 장치의 사시도이고,3 is a perspective view of an extrusion die apparatus for pulling in a cable wire for embedding a communication cable according to the present invention;
제4도는 통신 케이블의 매설 상태를 보여주는 단면도이다.4 is a cross-sectional view showing the buried state of the communication cable.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
4 : 견인선 6 : 에어총4: towing ship 6: air gun
8 : 용융수지물 10 : 압출수지관8 molten resin 10 extruded resin tube
12 : 안내관체 14 : 견인선12: guide body 14: tow ship
16 : 냉각부 18 : 절연재층16 cooling part 18 insulation layer
30 : 제1케이블보호관 32 : 제2케이블 보호관30: first cable sheath 32: second cable sheath
34 : 제3케이블보호관 50 : 금형헤드34: third cable protection tube 50: mold head
본 발명은 통신 케이블의 지하 매설에 있어서 케이블 보호관내에 통신 케이블을 인입시키기 위한 방법 및 그 장치에 관한 것으로서, 보다 상세하게는 상기 통신 케이블 인입을 위한 견인선을 케이블 보호관 압출성형시 동시에 인입되도록 한 통신 케이블 매설용 견인선 인입 장치 및 그 인입방법에 관한 것이다.The present invention relates to a method and an apparatus for introducing a communication cable into a cable sheath in the undergrounding of a communication cable, and more particularly, to draw a traction line for the cable sheathed at the same time during extrusion of the cable sheath. The present invention relates to a communication cable embedding traction wire drawing device and a drawing method thereof.
지하에 통신 케이블을 매설할 때에는 통상 제4도에서 표시한 바와같이, 직경이 제일 큰 제1케이블 보호관(30)의 내부에는 수개의 중간직경의 제2케이블 보호관들(32)가 인입되고, 다시 이 제2케이블 보호관들(32)의 내부에는 수개의 작은 직경의 제3케이블 보호관들(34)가 인입되게 된다. 일예를 들면, 외경 100mm의 PVC파이프로 된 제1케이블 보호관(30)의 내부에 외경 28mm 정도의 3개의 PE파이프로 된 제2케이블 보호관들(32)가 인입되고, 다시 상기 제2케이블 보호간들(32)의 내부에 상기 제3케이블 보호관들(34)를 인입시킬 때 약 500m 정도되는 긴 상기 제2케이블 보호관들(32)에는 가요성인 제3케이블 보호관들(34)가 잘 인입되지 않으므로, 종래에는 제1도에서 보여지는 바와 같이 통상 폴리프로필렌 로우프로된 견인선(4)를 에어총(6)으로 쏘아서 상기 제2케이블 보호관들(32)의 내부로 반대편 끝까지 인입시키는 방법을 사용하였다.When embedding a communication cable in the basement, as shown in FIG. 4, several medium diameter second cable sheaths 32 are introduced into the first cable sheath 30 having the largest diameter, and then again. Several small diameter third cable sheaths 34 are introduced into the second cable sheaths 32. For example, the second cable protection pipes 32 made of three PE pipes having an outer diameter of about 28 mm are inserted into the first cable protection pipe 30 made of PVC pipe having an outer diameter of 100 mm, and the second cable protection bars again. Since flexible third cable sheaths 34 are hardly drawn into the second cable sheaths 32, which are about 500 m long, when the third cable sheaths 34 are introduced into the inside of 32. Conventionally, as shown in FIG. 1, a traction line 4 made of polypropylene low is generally shot with an air gun 6 to draw the opposite end into the second cable sheath 32.
이와 같은 종래의 방법으로는 긴 상기의 케이블 보호관을 펴 놓고 작업하기가 매우 번거롭고, 매 보호관마다 일일이 견인선을 별도로 인입해야 하므로 작업 효율이 저하되고 작업 비용이 상승되는 문제가 있었다.In such a conventional method, it is very cumbersome to work with the above-mentioned long cable guard tube, and since each of the guard tubes needs to be pulled in separately, there is a problem in that work efficiency is lowered and work cost is increased.
본 발명은 이와 같은 문제를 해결하기 위하여, 상기 제1케이블 보호관의 압출 성형시 상기 견인선이 동시에 인입되어 나오도록 한 본 발명의 통신 케이블 매설용 견인선 인입 방법 및 그 장치를 개발하게 되었다.In order to solve the problem, the present invention has been developed a method and apparatus for retracting a cable for embedding a communication cable of the present invention in which the towing wire is simultaneously drawn in during extrusion of the first cable protection tube.
본 발명의 목적은 통신 케이블의 지하 매설에 있어서, 케이블 보호관내에 통신 케이블을 인입시키기 위한 견인선의 인입을 용이하게 할 수 있는 통신 케이블 매설용 견인선 인입방법 및 그 장치를 제공함에 있다.SUMMARY OF THE INVENTION An object of the present invention is to provide a communication cable embedding traction wire entry method and apparatus for facilitating the introduction of a traction wire for introducing a communication cable into a cable protection tube in the underground embedding of a communication cable.
본 발명의 또 다른 목적은 케이블 보호관내의 견인선 인입 비용을 대폭 절감할 수 있는 통신 케이블 매설용 견인선 인입방법 및 그 장치를 제공함에 있다.It is still another object of the present invention to provide a method and apparatus for traction wire insertion for embedding a communication cable which can greatly reduce the cost of traction wire introduction in a cable sheath.
상기 목적을 달성하기 위한 본 발명의 특징은 압출성형기의 금형헤드에 의해 통신 케이블보호용 수지관을 상기 금형헤드의 수지관 성형부의 중앙을 관통하는 안내통로를 제공하는 중공상의 안내관체를 설치하는 단계 ; 상기 안내관체의 그 안내통로를 통과되게 하여 성형되는 수지관의 어느 일단부에 고정되는 견인선을 설치하는 단계 ; 및 상기 수지관의 압출성형시 그 견인선을 압출성형되는 수지관과 일체로 연장되면서 성형된 수지관의 내부에 위치되어 있도록 하는 단계를 포함하는 통신 케이블 매설용 견인선의 인입방법에 있다.Features of the present invention for achieving the above object comprises the steps of: installing a hollow guide tube body for providing a communication path through the center of the resin tube forming portion of the resin tube for communication cable protection by the mold head of the extruder; Providing a traction line fixed to one end of the resin tube to be molded by passing the guide passage of the guide tube body; And extending the traction line integrally with the resin tube to be extruded when the resin tube is extruded and being positioned inside the molded resin tube.
또한 본 발명의 특징은 그 금형헤드에 의해 통신 케이블 매설을 위한 보호용 수지관을 성형하도록 된 압출성형장치에 있어서, 내부가 빈 중공상 관체이고, 상기 금형헤드의 수지관의 압출성형부를 관통설치되어 외부와 연락되는 안내통로를 제공하는 안내관체 ; 및 상기 안내관체의 안내통로를 통하여 압출성형되는 수지관의 어느 일단부에 고정지지되고, 그 수지관의 압출성형시 일체로 연장되면서 성형된 수지관의 내부에 위치되어 케이블의 견인시 사용할 수 있도록 한 견인선을 포함함을 특징으로 하는 통신 케이블 매설용 견인선 인입장치에 있다.In addition, a feature of the present invention is an extrusion molding apparatus for molding a protective resin tube for embedding a communication cable by the mold head, wherein the inside is a hollow hollow tube, and is provided through the extruded portion of the resin tube of the mold head. Guidance organization that provides guidance passages to the outside; And fixedly supported at any one end of the resin tube that is extruded through the guide passage of the guide tube body, and is positioned inside the molded resin tube while being integrally extended during extrusion of the resin tube so as to be used when towing the cable. There is a tow line retracting device for embedding a communication cable, characterized in that it comprises a tow line.
이하에서 본 발명에 따른 통신 케이블 매설용 견인선 인입 방법 및 그 장치는 첨부된 도면을 참조하여 보다 상세히 설명되어질 것이다.Hereinafter, a method and an apparatus for guiding a pulling line for embedding a communication cable according to the present invention will be described in more detail with reference to the accompanying drawings.
제2도를 참조하면, 본 발명의 통신 케이블 매설용 견인선 인입 방법은 통상의 수지 압출 성형 과정에 부가적으로 수행될 수 있다. 제2도에서 통상의 압출 금형헤드(50)내의 만드렐 중심부에 견인선(14)를 인입하기 위한 안내통로(11)을 갖는 안내관체(12)를 구비하고 있다. 상기 안내관체(12)는 내부가 빈(空) 중공상관체로서 금형헤드(50)의 전후로 소정의 길이로서 돌출되게 설치되어 있다. 상기 안내관체(12)는 견인선(14)가 안정되게 압출 수지관(10)내로 인입되게 하는 것을 도우며, 상기 금형헤드(50)의 고열(高熱)에 의해 저융점의 견인선(14)가 금형헤드(50)의 벽면 또는 압출 수지관(10)에 융착되는 것을 방지한다. 상기 견인선(14)는 통상 폴리프로필렌 끈을 사용하고 있으나 다른 어떤 재료의 끈도 사용가능하다. 상기 안내관체(12)는 금속재료로 되는 것이 바람직하나 무기재료 또는 세라믹도 가능하다.Referring to FIG. 2, the method of drawing a cable wire for embedding a communication cable according to the present invention may be performed in addition to a conventional resin extrusion process. In FIG. 2, a guide tube body 12 having a guide passage 11 for introducing the traction line 14 to the center of the mandrel in the conventional extrusion die head 50 is provided. The guide tube body 12 is a hollow hollow tube body which is provided so as to protrude as a predetermined length before and after the mold head 50. The guide tube body 12 allows the traction line 14 to be stably introduced into the extruded resin tube 10, and the traction line 14 having a low melting point is formed by the high heat of the mold head 50. It is prevented from being fused to the wall surface of the mold head 50 or the extruded resin tube 10. The pull line 14 typically uses polypropylene straps, but any other strap may be used. The guide tube 12 is preferably made of a metal material, but may be an inorganic material or a ceramic.
제2도에서 보여지는 바와 같이 금형헤드(50)의 중심부 안내관체(12)의 외층에는 냉각부(16)과 절연체층(18)이 구비되어 있어서, 용융수지물(8)의 고열(高熱)이 안내관체(12)에 직접적으로 전달되는 것을 차단한다. 상기 냉각부(16)은 냉각수가 순환되는 것이 바람직하나, 다른 어떤 냉매로 대체하는 것도 가능하다. 또한 상기 절연재층(18)은 유리섬유재나 무기질 재료를 사용하는 것이 바람직하나 그외 다른 도전율이 낮은 재료를 사용할 수도 있다.As shown in FIG. 2, the outer layer of the central guide tube 12 of the mold head 50 is provided with a cooling unit 16 and an insulator layer 18, so that the high temperature of the molten resin 8 is high. It is blocked from being delivered directly to the guide tube 12. Preferably, the cooling unit 16 is circulated with cooling water, but may be replaced with any other refrigerant. In addition, the insulating material layer 18 may be made of glass fiber material or inorganic material, but other low conductivity materials may be used.
이와 같이 구성된 견인선 인입장치에 있어서, 사전에 견인선(14)가 안내관체(12)의 안내통로(11)의 내부로 인입된다. 이렇게 인입선 견인선(14)의 선단부는 케이블 보호관들이 될 압출 수지관(10)의 선단부에 통상적인 방법으로 고정된다. 따라서 압출 수지관(10)이 성형되면서 압출될시 상기 견인시(14) 역시 압출수지관(10)과 같이 연장하게 되므로 견인선(14)가 인입된 압출수지관(10)이 형성되게 된다. 이와같이 형성된 압출수지관(10)은 통상적인 방법으로 롤링장치에 의해 롤(roll) 상태로 감겨서 보관된다.In the drawer line pulling-out apparatus configured as described above, the drawer line 14 is introduced into the guide passage 11 of the guide tube body 12 in advance. Thus, the leading end of the lead wire traction line 14 is fixed in the usual way to the leading end of the extruded resin tube 10 to be the cable protective tubes. Therefore, when the extruded resin tube 10 is molded and extruded, the tow 14 also extends like the extruded resin tube 10, so that the extruded resin tube 10 into which the pull line 14 is drawn is formed. The extruded resin tube 10 thus formed is wound in a roll state by a rolling apparatus and stored in a conventional manner.
이상과 같이 본 발명에 의하면, 케이블보호관의 사출성형시 그 보호관의 내부에 견인선이 일체적으로 설치되어 나오도록 한 것에 의해, 종래 케이블보호과내부로 일일히 견인선을 수작업으로 넣어야만 되는 불편이 없게되는 효과가 있다.As described above, according to the present invention, when the cable protective tube is injection molded, the traction line is integrally installed inside the protective tube, so that the inconvenience of having to manually insert the traction line manually into the conventional cable protection unit. There is no effect.
또한 보호관이 제조되는 대로 케이블 인입작업에 즉시 투입사용할 수 있는 작업성이 개선된 효과도 있다.In addition, as soon as the protective tube is manufactured, the workability that can be immediately used for cable entry is improved.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019930003900A KR960009317B1 (en) | 1993-03-15 | 1993-03-15 | Extruding method and apparatus for communication cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019930003900A KR960009317B1 (en) | 1993-03-15 | 1993-03-15 | Extruding method and apparatus for communication cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR940022965A KR940022965A (en) | 1994-10-22 |
| KR960009317B1 true KR960009317B1 (en) | 1996-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019930003900A KR960009317B1 (en) | 1993-03-15 | 1993-03-15 | Extruding method and apparatus for communication cable |
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| Country | Link |
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| KR (1) | KR960009317B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100402368B1 (en) * | 2000-10-30 | 2003-10-17 | 한양전설(주) | A cable embeded pipe manufacturing device and manufacturing method for wiring protection |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101715899B1 (en) | 2015-03-31 | 2017-03-14 | 미래이앤시주식회사 | Watertight installing method of plastic corrugated pipe |
| KR101740501B1 (en) | 2016-07-25 | 2017-05-26 | 미래이앤시주식회사 | Watertight test method of plastic corrugated pipe |
| KR101675263B1 (en) | 2016-07-25 | 2016-11-11 | 미래이앤시주식회사 | Porously pulling method using a unwrapping apparatus |
-
1993
- 1993-03-15 KR KR1019930003900A patent/KR960009317B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100402368B1 (en) * | 2000-10-30 | 2003-10-17 | 한양전설(주) | A cable embeded pipe manufacturing device and manufacturing method for wiring protection |
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| Publication number | Publication date |
|---|---|
| KR940022965A (en) | 1994-10-22 |
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