KR20080043893A - Method and device for manufacturing plastic multiple-walled tube and plastic-walled thereof - Google Patents

Method and device for manufacturing plastic multiple-walled tube and plastic-walled thereof Download PDF

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Publication number
KR20080043893A
KR20080043893A KR1020060112512A KR20060112512A KR20080043893A KR 20080043893 A KR20080043893 A KR 20080043893A KR 1020060112512 A KR1020060112512 A KR 1020060112512A KR 20060112512 A KR20060112512 A KR 20060112512A KR 20080043893 A KR20080043893 A KR 20080043893A
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KR
South Korea
Prior art keywords
resin
synthetic resin
iron core
reinforcement
coated
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KR1020060112512A
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Korean (ko)
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박재영
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박재영
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Priority to KR1020060112512A priority Critical patent/KR20080043893A/en
Priority to PCT/KR2007/005345 priority patent/WO2008060046A1/en
Publication of KR20080043893A publication Critical patent/KR20080043893A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/581—Winding and joining, e.g. winding spirally helically using sheets or strips consisting principally of plastics material
    • B29C53/582—Winding and joining, e.g. winding spirally helically using sheets or strips consisting principally of plastics material comprising reinforcements, e.g. wires, threads
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/82—Forcing wires, nets or the like partially or completely into the surface of an article, e.g. by cutting and pressing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
    • F16L11/16—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics wound from profiled strips or bands
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/127—Rigid pipes of plastics with or without reinforcement the walls consisting of a single layer
    • F16L9/128—Reinforced pipes
    • 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
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C39/10—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels

Abstract

A method and device for manufacturing a plastic multiple-walled tube and a plastic multiple-walled tube are provided to construct by using a pipe and reinforced resin, and press-fit a coated iron core into the reinforced resin, so that the reinforced resin is perfectly pressed on the coated iron core. Reinforced plastic is filled between pipes having a spiral cylindrical frame by using an extruder(S1). The reinforced plastic is subject to press-rolling by using upper and lower rollers and a groove is formed at the upper portion of the reinforced resin(S2). A plastic multiple-walled tube is cut by a predetermined length(S3). The reinforced plastic is cooled in a natural environment(S4). A coated iron core is press-fitted(S5). Reinforced resin having a liquid phase is coated on the iron core by using the extruder(S6). The reinforced resin having a liquid phase is subject to press-rolling using a roller(S7).

Description

합성수지 다중벽관 제조방법 및 제조장치와 그 합성수지 다중벽관{METHOD AND DEVICE FOR MANUFACTURING PLASTIC MULTIPLE-WALLED TUBE AND PLASTIC-WALLED THEREOF}METHOD AND DEVICE FOR MANUFACTURING PLASTIC MULTIPLE-WALLED TUBE AND PLASTIC-WALLED THEREOF}

도 1은 종래기술의 단면 사시도,1 is a cross-sectional perspective view of the prior art,

도 2는 본 발명의 실시 예에 따른 부분 단면 사시도,2 is a partial cross-sectional perspective view according to an embodiment of the present invention;

도 3a 내지 도 3d는 본 발명의 실시 예에 따른 다양한 형상의 코팅된 철심단면을 보여주는 도면,3a to 3d are views showing coated iron core cross sections of various shapes according to an embodiment of the present invention;

도 4는 본 발명의 공정도,4 is a process diagram of the present invention;

도 5a 내지 도 5f는 본 발명의 공정단계를 나타내는 단면구성도,5a to 5f is a cross-sectional view showing a process step of the present invention,

도 6a 및 도 6b는 코팅된 철심 삽입 공정구성도,6a and 6b is a coated iron core insertion process configuration,

도 7은 본 발명의 장치를 설명하는 장치구성도.7 is an apparatus configuration diagram illustrating the apparatus of the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

(A)--다중벽관 (2)--파이프(A)-Multi Wall Pipe (2)-Pipe

(4)--코팅철심 (20)--합성수지 압출기(4)-coated iron core (20)-synthetic resin extruder

(8)--보강수지 (10)(22)--수냉식 상부롤러(8)-Reinforcement Resin (10) (22)-Water Cooled Upper Roller

(10a)--돌선 (12)--하부롤러(10a)-Turn (12)-Lower Roller

(14)--요홈 (16)--열풍기(14)-Home (16)-Heater

(18)--스프링이 내장된 지주대 (18a)--반타원형 형태의 삽입기구(18)-Spring stand with built-in spring (18a)-Semi-oval insert

(24)--1차 성형기 (26)--2차 성형기(24) -secondary molding machine (26) -secondary molding machine

본 발명은 합성수지 다중벽관에 관한 것으로, 특히 합성수지 다중벽관과 코팅된 철심이 완전 재접착되도록 하여 강성을 보강토록 한 합성수지 다중벽관 제조방법 및 제조장치와 그 합성수지 다중벽관에 관한 것이다.The present invention relates to a synthetic resin multi-walled pipe, and more particularly, to a method and a manufacturing method of a synthetic resin multi-walled pipe and a synthetic resin multi-walled pipe to reinforce rigidity by completely re-bonding the synthetic multi-walled pipe and the coated iron core.

일반적으로 합성수지 다중벽관은 폴리프로필렌, 폴리에틸렌, 폴리염화비닐과 같은 열가소성 수지를 이용한 파이프가 나선형으로 공급되면서 원통프레임으로 형성되는 것으로서, 합성수지로만 이루어진 다중벽관은 하중강도나 토압, 윤압등에 약한 결점을 가지고 있다.In general, synthetic multi-walled pipe is formed into a cylindrical frame by feeding spirally pipes using thermoplastic resins such as polypropylene, polyethylene, and polyvinyl chloride. Multi-walled pipe made of synthetic resin has weak defects in load strength, earth pressure, and rolling pressure. have.

이러한 결점을 보완하기 위하여 특허공개번호 2005-55656호에서 합성수지재 파이프 사이에 보강철심재를 삽입하여 일체화시킴으로써 강성을 보강한 합성수지 다중벽관을 제공하였다.In order to compensate for this defect, Patent Publication No. 2005-55656 provided a synthetic multi-walled pipe reinforced with rigidity by inserting and reinforcing the core material between the synthetic resin pipes.

그러나 위와 같이 강성을 보강하기 위하여 보강철심재를 삽입하여 제조되는 합성수지 다중벽관(100)은 도 1에서와 같이 용융액 상태의 보강수지(102)를 보강철심재(104)와의 1차 합접만으로 냉각하게되면 보강수지(102)와 보강철심재(104)가 합접 되어진것 같지만 액상의 보강수지(102)가 서서히 냉각되면서 수축되므로 냉각된 보강수지(102)가 보강철심재(104)에서 떨어지는 현상이 발생하게 되고 그후 다 중벽관(100)의 시공후 사용되어 지는 동안 외부에 충격이나 하중, 토압, 윤압 등이 가해지면 보강철심재(104)가 쉽게 보강수지(102)와 분리 되었으므로 다중벽관(100)이 제 역할을 못하게 되어 제품수명이 단축되고 교체 및 관리비용 부담이 증가하는 등의 단점이 있었다.However, the synthetic resin multi-wall tube 100 is manufactured by inserting a reinforcing iron core material to reinforce the rigidity as described above to cool the reinforcing resin 102 in the melt state only with the primary joint with the reinforcing iron core 104 as shown in FIG. When the reinforcing resin 102 and the reinforcing iron core 104 seems to be joined together, but the liquid reinforcing resin 102 is gradually cooled and contracted, so that the cooled reinforcing resin 102 falls from the reinforcing iron core 104. After the construction of the multi-walled pipe 100 is applied to the external impact or load, earth pressure, lubrication pressure, etc., the reinforcing iron core 104 is easily separated from the reinforcing resin 102, so the multi-walled pipe 100 There was a disadvantage such as shortened product life and increased burden of replacement and management costs.

따라서 본 발명의 목적은 합성수지 다중벽관의 보강수지 내부에 에폭시 수지로 코팅된 철심을 가압삽입하여 강성을 높이고 보강수지 내부에 에폭시 수지로 코팅된 철심은 에폭시 수지가 강력한 접착제 역할을 하여 완전접착이 이루어지도록 하는 합성수지 다중벽관 제조방법 및 제조장치와 그 합성수지 다중벽관을 제공하는데 있다.Therefore, an object of the present invention is to increase the rigidity by press-inserting the iron core coated with epoxy resin inside the reinforcement resin of the synthetic resin multi-walled pipe and the epoxy core coated with epoxy resin inside the reinforcement resin is a perfect adhesive made by the epoxy resin as a strong adhesive The present invention provides a method and apparatus for manufacturing a synthetic multi-walled pipe and its synthetic multi-walled pipe.

상기한 목적을 달성하기 위한 본 발명은, 합성수지 압출기에 의해서 압출되는 합성수지 파이프(2)를 나선형 원통프레임으로 형성하고, 나선형 원통프레임을 구성하는 인접 파이프(2) 간에는 액상의 합성수지 압출기(20)로 보강수지(8)를 충진 압착성형한 다음, 보강수지(8) 상의 에폭시 수지로 코팅된 철심(4)을 가압삽입하여 보강수지(8) 내에 매립되도록 함을 특징으로 한다.The present invention for achieving the above object, the synthetic resin pipe (2) extruded by a synthetic resin extruder to form a spiral cylindrical frame, between the adjacent pipes (2) constituting the spiral cylindrical frame as a liquid synthetic resin extruder (20) After filling compression molding of the reinforcement resin (8), it is characterized in that the iron core (4) coated with the epoxy resin on the reinforcement resin (8) to be embedded in the reinforcement resin (8).

이하 본 발명의 바람직한 실시 예들을 첨부한 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명의 실시 예에 따른 부분 단면 사시도이고, 도 3a 내지 도 3d는 본 발명의 실시 예에 따른 다양한 형상의 에폭시 수지로 코팅된 철심단면을 보여주는 도면이다.2 is a partial cross-sectional perspective view according to an embodiment of the present invention, Figures 3a to 3d is a view showing a cross-section of the iron core coated with epoxy resin of various shapes according to an embodiment of the present invention.

도 2에서와 같이 본 발명의 실시 예에 따른 합성수지 다중벽관(A)은, 합성수지 압출기에서 파이프(2)를 연속으로 압출하여 나선형으로 감으면서 원통프레임을 구성하고 인접 파이프(2)들 사이에 합성수지 압출기 액상의 보강수지(8)를 충진하여 압착롤링성형한 다음, 보강수지(8) 주변과 요홈(14) 내부와 코팅된 철심에 열풍기(16)로 열을 가하면서 코팅된 철심(4)을 삽입 형성하고 합성수지 압출기(20)로 액상의 보강수지(8)를 재충진하여 압착롤링성형함으로써 파이프(2)와 코팅철심(4) 및 보강수지(8)가 일체로 합접되도록 함으로써 구성된다.As shown in Figure 2 synthetic resin multi-walled pipe (A) according to an embodiment of the present invention, the pipe 2 is continuously extruded in a synthetic resin extruder to form a cylindrical frame while spirally wound and the synthetic resin between adjacent pipes (2) After filling the extruder liquid reinforcement resin (8) by compression rolling, the coated iron core (4) was heated while applying heat with a hot air blower (16) around the reinforcement resin (8) and the inside of the groove (14). It is formed by inserting and refilling the liquid reinforcing resin 8 with the synthetic resin extruder 20 and pressing and rolling to make the pipe 2 and the coating iron core 4 and the reinforcing resin 8 integrally contact each other.

또한 보강수지(8)에 매립된 코팅철심(4)은 도 3a의 일예와 같이 원형단면의 형상을 갖도록 구성할 수 있고, 다른 변형예로서 도 3b 및 도 3c와 같이 각형을 구성하되, 보강수지(8)와의 접착면적을 보다 넓게 하기 위해 H, I빔 단면형상을 갖도록 구성할 수도 있으며, 도 3d와 같이 파이프(2)의 크기나 굵기에 따라 두개 이상의 코팅된 철심(4)을 삽입할 수도 있다.In addition, the coated iron core 4 embedded in the reinforcement resin 8 may be configured to have a circular cross-sectional shape as in the example of FIG. 3A, and as another modified example, constitute a square as shown in FIGS. 3B and 3C, but the reinforcement resin In order to increase the adhesion area with (8), it may be configured to have H, I beam cross-sectional shape, and as shown in FIG. 3D, two or more coated iron cores 4 may be inserted according to the size or thickness of the pipe 2. have.

도 4는 본 발명의 공정도이다.4 is a process diagram of the present invention.

이제 본 발명의 실시 예에 따른 합성수지 다중벽관(A)을 제조하는 공정을 더욱 상세히 설명하면 하기와 같다.Now it will be described in more detail the process for producing a synthetic resin multi-wall tube (A) according to an embodiment of the present invention.

합성수지 다중벽관(A)의 제조공정은 크게 1차 성형공정과 2차 성형공정으로 나뉜다.The manufacturing process of the synthetic resin multi-wall tube (A) is divided into primary molding process and secondary molding process.

합성수지 압출기에서 파이프(2)를 연속으로 압출하여 나선형으로 감아 나선형 원통프레임을 형성하되, 이때 나선형 원통프레임을 구성하는 파이프(2) 사이에는 액상의 보강수지(8)를 합성수지 압출기(20)로 충진시키게 한다(도 4의 S1단계).In the resin extruder, the pipe (2) is continuously extruded and spirally wound to form a spiral cylindrical frame, wherein a liquid reinforcing resin (8) is filled with the synthetic resin extruder (20) between the pipes (2) constituting the spiral cylindrical frame. (Step S1 of FIG. 4).

그 후 도 5a 내지 도 7에서와 같이, 상?하부롤러(10,12)를 사용하여 액상의 보강수지(8)를 압착롤링 성형함으로써 보강수지(8)와 파이프(2)를 합접구성하되, 상부롤러(10)의 중심부 둘레로 돌선(10a)을 형성하여 보강수지(8)의 상부에 요홈(14)이 형성되어지게 함으로써(도 4의 S2단계) 합성수지 다중벽관의 1차 성형기(24)에서의 공정이 끝나게 된다.Thereafter, as shown in FIGS. 5A to 7, the reinforcement resin 8 and the pipe 2 are jointly formed by pressing and rolling the liquid reinforcement resin 8 using the upper and lower rollers 10 and 12. By forming a protrusion 10a around the center of the upper roller 10 so that the groove 14 is formed on the upper part of the reinforcing resin 8 (step S2 of FIG. 4), the primary molding machine 24 of the synthetic resin multi-wall tube The process at ends.

이때 합성수지 다중벽관의 크기와 작업조건에 따라 보강수지(8) 상의 요홈(14)을 1개 또는 2개 이상 형성해도 무방하며 또한 보강수지(8) 상에 작업자는 먼저 돌선(10a)에 의한 코팅된 철심(4)의 굵기와 깊이를 설정하여 요홈(14)이 이루어지게 한다.At this time, one or two or more grooves 14 on the reinforcement resin 8 may be formed depending on the size and working conditions of the synthetic resin multi-wall tube. The groove 14 is made by setting the thickness and depth of the iron core 4.

그 후 합성수지 다중벽관은 일정한 길이로 절단되어지고(도 4의 S3단계), 일정 기간 자연냉각되어져 경화되어진다(도 4의 S4단계). 자연냉각을 통한 경화는 15～24시간 정도가 바람직하나 계절의 온도에 따라 경화되는 시간은 다소 차이가 있다..After that, the multi-walled synthetic resin pipe is cut to a certain length (step S3 of FIG. 4), and naturally cooled and cured for a period of time (step S4 of FIG. 4). Hardening through natural cooling is preferred for about 15 to 24 hours, but the curing time varies depending on the season's temperature.

요홈(14)은 코팅철심(4)이 위치되게 하는 안내역할을 한다.The groove 14 serves as a guide for the coating iron core 4 to be positioned.

에폭시 수지로 코팅된 철심을 설명하면 에폭시 수지는 일액성 에폭시 수지로서 사용목적, 외관, 점토, 경화온도 및 시간등과 같은 물성과 작업성, 접착력, 내열성등과 같은 경화물의 특성에 따라 70여종이 있으며 에폭시 수지로 코팅된 철심과 다중벽관에 예비열을 주면 접착제 역할을 한다. 이중 T?B?2275(제품명)는 철심 코팅에 가장 적합한 에폭시 수지이며 접착강도(370kgt/cm2)가 가장 우수하다. 또한 철심에 에폭시 수지를 코팅하면 150°C 열온도에서 경화되는 시간이 약 40분이 소요되어야 경화가 이루어짐으로 작업자는 다중벽관 2차 성형하기전 코팅된 철심을 미리 준비 해 둔다.When explaining the core coated with epoxy resin, epoxy resin is a one-component epoxy resin, which is about 70 kinds depending on the properties such as purpose of use, appearance, clay, curing temperature and time, and hardened materials such as workability, adhesive strength and heat resistance. It provides an adhesive when preheat is applied to iron core and multi-walled pipe coated with epoxy resin. Among them, T? B? 2275 (product name) is the best epoxy resin for iron core coating and has the best adhesive strength (370kgt / cm 2 ). In addition, when the epoxy resin is coated on the iron core, the curing time should be about 40 minutes at 150 ° C. Thus, the worker prepares the coated iron core before the second molding of the multi-wall tube.

그 후 2차 성형기(26)에 다중벽관을 회전가능토록 고정설치한 다음 열풍기(16)로 보강수지상부(8)에 형성된 요홈(14)의 주위와 코팅된 철심(4)을 서서히 가열하고 스프링이 내장된 지주대(18)로 가압하고 지주대 하단부(18)에 설치된 반타원형(18a) 형태의 기구로 코팅철심(4)을 가압삽입하여 코팅된 철심(4)이 매립되게 한다(도 4의 S5단계).Thereafter, the multi-wall tube is fixed to the secondary molding machine 26 so as to be rotatable, and then the heating fan 16 gradually heats the circumference of the groove 14 formed in the upper portion of the reinforcement resin 8 and the coated iron core 4 and springs. Pressed by the embedded strut 18 and press-inserted the coated iron core 4 with a semi-elliptic type 18a-type mechanism installed on the lower end 18 of the strut to allow the coated iron core 4 to be embedded (FIG. 4). Step S5).

이때 열풍기(16)는 냉각된 보강수지(8)와 요홈(14)에 높은 열을 주면 물성변화가 심하게 되므로 녹으면서 변형을 초래할수 있으므로 열풍기의 온도는 70°C～120°C 정도로 가열하는 것이 좋으나 계절에 따라 열풍기의 가열하는 온도변화가 있다. 이때 에폭시 수지로 경화된 코팅철심(4)을 재차 열을 가함으로 에폭시 수지가 조금 녹으면서 물성변화가 일어나 강력한 접착제 역할을 한다.At this time, the hot air fan 16 is a high heat to the cooled reinforcing resin (8) and the groove 14, so the physical property change is severe, so that it can be deformed while melting, so the temperature of the hot air fan is heated to about 70 ° C ~ 120 ° C Good, but there is a change in temperature of the heating fan depending on the season. At this time, the coating iron core (4) cured with epoxy resin is heated again, so that the epoxy resin melts a little, and the physical property changes to act as a strong adhesive.

또한 반타원형(18a)의 단면형상은 가압되는 코팅된 철심(4)의 반발을 억제하도록 “

Figure 112006083350032-PAT00002
"형상을 하는 것이 바람직하다.In addition, the cross-sectional shape of the semi-elliptic shape 18a is designed to suppress the repulsion of the coated iron core 4 which is pressurized.
Figure 112006083350032-PAT00002
"It is desirable to have a shape.

한편 코팅된 철심(4)을 매립함으로써 생기는 공간에 합성수지 합출기(20)로 액상의 보강수지(8)를 재충진하고(도 4의 S6단계), 수냉식 상부롤러(22)를 사용하여 액상의 보강수지(8)를 압착롤링성형함으로써(도 4의 S7단계) 2차 성형기(26)에서의 공정이 끝나게 되면서 합성수지 다중벽관(A)이 완성된다.Meanwhile, the liquid reinforcement resin 8 is refilled with the synthetic resin extractor 20 in the space formed by embedding the coated iron core 4 (step S6 in FIG. 4), and the liquid-cooled upper roller 22 is used to By pressing and rolling the reinforcement resin 8 (step S7 of FIG. 4), the process in the secondary molding machine 26 is completed, and the synthetic resin multi-wall tube A is completed.

상기 S7단계에서 합성수지 다중벽관(A)의 내측부에 형성된 보강수지(8) 부분은 열전달이 거의 없어 경화상태를 유지하게 되므로 하부롤러를 사용하지 않아도 무방하 다.In step S7, the portion of the reinforcement resin (8) formed in the inner portion of the synthetic resin multi-wall tube (A) has little heat transfer, and thus maintains a hardened state, so it is not necessary to use a lower roller.

상술한 본 발명의 설명에서는 구체적인 실시 예에 관해 설명하였으나, 여러가지 변형이 본 발명의 범위에서 벗어나지 않고 실시할 수 있다. 따라서 본 발명의 범위는 설명된 실시 예에 의하여 정할 것이 아니고 특허청구범위와 특허청구범위의 균등한 것에 의해 정해 져야 한다.In the above description of the present invention, specific embodiments have been described, but various modifications can be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be determined by the equivalent of claims and claims.

상술한 바와 같이 본 발명은, 파이프와 보강수지로 합성수지 다중벽관을 구성한 후 보강수지에 코팅된 철심을 가압삽입하여 코팅된 철심과 보강수지가 견고하게 완전압착되게 함으로써 시공설치 후 큰하중이나 토압, 윤압에도 쉽게 코팅된 철심이 분리되지 않는 강성을 극대화 시킬 수 있다. 또한 합성수지 다중벽관이 쉽게 파손되지 않아 수명이 연장되므로 한번의 설치로 오랫동안 안전하고 편안하게 사용할 수 있어 자원절약 뿐만 아니라 교체 및 관리비용 절감 등의 효과가 있는 것이다.As described above, the present invention, after constructing a synthetic resin multi-walled pipe with a pipe and a reinforcement resin, by inserting the iron core coated on the reinforcement resin, the coated iron core and the reinforcement resin is firmly completely compressed, so that a large load or earth pressure after installation, It is possible to maximize the rigidity that the coated iron core can not be separated even if the pressure is reduced. In addition, the synthetic resin multi-walled pipe is not easily broken, so the service life is extended, so it can be used safely and comfortably for a long time with a single installation, thereby saving not only resources but also replacement and management costs.

Claims (13)

합성수지 압출기에 의해서 압출되는 합성수지 파이프(2)를 나선형 원통프레임으로 형성하고, 나선형 원통프레임을 구성하는 인접 파이프(2) 간에는 액상의 보강수지(8)를 충진 압착성형한 다음, 보강수지(8) 상의 에폭시 수지로 코팅된 철심(4)을 가압삽입하여 보강수지(8) 내에 매립되도록 함을 특징으로 하는 합성수지 다중벽관 제조방법.The synthetic resin pipe (2) extruded by the synthetic resin extruder is formed into a spiral cylindrical frame, and the compression-molding of the liquid reinforcing resin (8) is performed between adjacent pipes (2) constituting the spiral cylindrical frame, followed by the reinforced resin (8). Method of manufacturing a synthetic resin multi-wall tube, characterized in that the core (4) coated with the epoxy resin on the pressure to be embedded in the reinforcement resin (8). 합성수지 다중벽관 제조방법에 있어서,In the synthetic resin multi-wall tube manufacturing method, 나선형 원통프레임을 구성하는 파이프(2)들 사이에 합성수지 압출기(20)로 액상의 보강수지(8)를 충진하는 단계(S1)와,Filling the liquid reinforcement resin 8 with a synthetic resin extruder 20 between the pipes 2 constituting the spiral cylindrical frame (S1); 상?하부롤러(10,12)를 사용하여 액상의 보강수지(8)를 압착롤링성형하되, 상부롤러(10)의 중심부에는 돌선(10a)을 빙둘러 형성하여 보강수지(8)의 상부에 요홈(14)을 형성하는 단계(S2)와,Press and roll the liquid reinforcement resin 8 by using the upper and lower rollers 10 and 12, but form a circumferential line 10a around the center of the upper roller 10 to form an upper portion of the reinforcement resin 8. Forming the recess 14 (S2), 합성수지 다중벽관(A)을 일정한 길이로 절단하는 단계(S3)와,Cutting the synthetic resin multi-wall tube (A) to a predetermined length (S3), 일정 기간 자연냉각으로 경화되게 하는 단계(S4)와,Step to be cured by natural cooling for a period of time (S4), 열풍기(16)로 코팅된 철심(4)과 요홈(14) 주위에 예비열을 가한 후, 스프링이 내장된 지주대(18)와 지주대 하단부(18)에 설치된 반타원형 형태(18a)의 기구로 코팅된 철심(4)을 가압삽입하여 매립하는 단계(S5)와,After applying a preliminary heat around the iron core 4 and the groove 14 coated with the hot air fan 16, the semi-elliptic shape 18a installed on the support stand 18 and the lower end 18 of the support stand is installed. Inserting the iron core (4) coated with pressure and embedding (S5), 매립된 코팅철심(4) 상부로 합성수지 압출기(20)로 액상의 보강수지(8)를 재충진하는 단계(S6)와,Refilling the liquid reinforcing resin (8) with the synthetic resin extruder (20) to the buried coated iron core (4) and (S6), 수냉식 상부롤러(22)를 사용하여 액상의 보강수지(8)를 압착롤링성형하는 단계(S7)로 이루어짐을 특징으로 하는 합성수지 다중벽관 제조방법.Method for producing a synthetic multi-walled pipe, characterized in that the step of (S7) by pressing and rolling the liquid reinforcement resin (8) using a water-cooled upper roller (22). 청구항 1에 있어서, 상기 보강수지(8) 압착성형시 코팅된 철심(4)에 굵기와 깊이를 위치되게 안내하는 요홈(14)이 보강수지(8)에 형성되도록 함을 특징으로 하는 합성수지 다중벽관 제조방법.The synthetic resin multi-walled pipe according to claim 1, wherein the groove 14 for guiding the thickness and depth of the coated iron core 4 is formed in the reinforcement resin 8 when the reinforcement resin 8 is pressed. Manufacturing method. 청구항 2에 있어서 상기 단계(S4)의 일정기간 자연냉각으로 경화되게 하는 시간을 특징으로 하는 합성수지 다중벽관 제조방법The method of claim 2, wherein the synthetic resin multi-wall tube manufacturing method characterized in that the time to be cured by natural cooling for a certain period of the step (S4) 청구항 2에 있어서 상기 단계(S5)의 열풍기(16)로 냉각된 보강수지(8)와 요홈(14)과 에폭시수지로 코팅된 철심(4)에 예비열의 온도범위는 70°C～120°C 임을 특징으로 하는 합성수지 다중벽관 제조방법The temperature range of the preliminary heat in the reinforcing resin (8) and the groove (14) and the iron core (4) coated with the epoxy resin cooled by the hot air blower 16 of the step (S5) is 70 ° C ~ 120 ° C Synthetic resin multi-wall pipe manufacturing method characterized in that 합성수지 압출기로 파이프를 압출하여 나선형 원통프레임으로 형성하는 합성수지 다중벽관의 제조장치에 있어서,In the manufacturing apparatus of a synthetic resin multi-wall tube to extrude a pipe with a synthetic resin extruder to form a spiral cylindrical frame, 상기 나선형 원통프레임의 파이프 사이사이에 합성수지 압출기로 액상의 보강수지를 충진하여 압착성형 하는 1차 성형기(24)와,Between the pipes of the helical cylindrical frame primary molding machine 24 for pressing and molding by filling the liquid reinforcement resin with a synthetic resin extruder, 상기 압착성형된 보강수지에 코팅철심을 가압삽입하고 삽입된 코팅철심 위에 합성수지 압출기로 액상의 보강수지를 재차 충진하여 보강수지 내에 코팅된 철심이 매립되도록 하는 2차 성형기(26)로 구성함을 특징으로 하는 합성수지 다중벽관 제조장치.Compression molded reinforcement resin is inserted into the coating iron core and the reinforcement of the liquid reinforcement resin with a synthetic resin extruder on the inserted coating core to form a secondary molding machine (26) for embedding the coated iron core in the reinforcement resin Synthetic resin multi-wall tube manufacturing apparatus. 청구항 6에 있어서, 상기 1차 성형기(24)는,The method of claim 6, wherein the primary molding machine 24, 상기 나선형 원통프레임의 파이프(2) 사이사이에 액상의 보강수지(8)를 주입하는 합성수지 압출기(20)와,A synthetic resin extruder 20 for injecting a liquid reinforcement resin 8 between the pipes 2 of the spiral cylindrical frame; 하부롤러(12)와 돌선(10a)이 형성된 상부롤러(10)에 의한 압착성형으로 보강수지(8)에 굵이와 깊이가 설정된 요홈(14)을 형성시키는 롤러부로 구성함을 특징으로 하는 합성수지 다중벽관 제조장치.Synthetic resin characterized in that it consists of a roller portion for forming the groove 14 is set to the thickness and depth in the reinforcement resin 8 by compression molding by the lower roller 12 and the upper roller 10 with the protrusion 10a Multi-wall pipe manufacturing device. 청구항 6에 있어서, 2차 성형기(26)는,The method of claim 6, wherein the secondary molding machine 26, 상기 설정된 요홈(14) 주위에 예비열을 가하는 열풍기(16)와,A hot air fan 16 for applying preliminary heat around the set groove 14; 코팅된 철심(4)을 스프링이 내장된 지주대(18)로 가압삽입하고, 지주대 하단부에 설치된(18) 반타원형(18a) 형태의 기구에 의해 매립된 코팅철심(4)을 상부로 액상의 보강수지(8)를 주입하는 합성수지 압출기(20)와,The coated iron core 4 is press-inserted into a spring-loaded support stand 18, and the coated iron core 4 embedded by a semi-elliptic type 18a-type mechanism installed at the lower end of the support stand is liquid phase upward. Synthetic resin extruder 20 for injecting the reinforcement resin 8, 보강수지(8)의 상부면을 롤링압착하는 수냉식 상부롤러(22)로 구성됨을 특징으로 하는 합성수지 다중벽관 제조장치.Synthetic resin multi-wall tube manufacturing apparatus, characterized in that consisting of a water-cooled upper roller (22) for pressing the upper surface of the reinforcing resin (8). 청구항 1에 기재된 제조방법으로 제조된 합성수지 다중벽관.Synthetic resin multi-walled tube produced by the manufacturing method of claim 1. 청구항 6에 기재된 제조장치로 제조된 합성수지 다중벽관.The synthetic resin multi-wall tube manufactured by the manufacturing apparatus of claim 6. 청구항 9에 있어서, 상기 코팅철심(4)이 각형 형상임을 특징으로 하는 합성수지 다중벽관.The synthetic resin multi-walled pipe according to claim 9, wherein the coated iron core (4) has a square shape. 청구항 9에 있어서, 상기 코팅철심(4)이 "H" 형상임을 특징으로 하는 합성수지 다중벽관.10. The synthetic resin multi-walled pipe according to claim 9, wherein the coated iron core (4) has an "H" shape. 청구항 9에 있어서, 상기 코팅된 철심(4)이 "I" 형상임을 특징으로 하는 합성수지 다중벽관.10. Synthetic resin multi-walled tube according to claim 9, characterized in that the coated iron core (4) is "I" shaped.
KR1020060112512A 2006-11-15 2006-11-15 Method and device for manufacturing plastic multiple-walled tube and plastic-walled thereof KR20080043893A (en)

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