KR20010113382A - A folding binder of poly ethylene liner for old water pipe - Google Patents

A folding binder of poly ethylene liner for old water pipe Download PDF

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Publication number
KR20010113382A
KR20010113382A KR1020000033690A KR20000033690A KR20010113382A KR 20010113382 A KR20010113382 A KR 20010113382A KR 1020000033690 A KR1020000033690 A KR 1020000033690A KR 20000033690 A KR20000033690 A KR 20000033690A KR 20010113382 A KR20010113382 A KR 20010113382A
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South Korea
Prior art keywords
liner
folding
rollers
tape
ring gear
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KR1020000033690A
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Korean (ko)
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KR100378230B1 (en
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권태주
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권태주
동도기공 주식회사
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Priority to KR10-2000-0033690A priority Critical patent/KR100378230B1/en
Publication of KR20010113382A publication Critical patent/KR20010113382A/en
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Publication of KR100378230B1 publication Critical patent/KR100378230B1/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
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F16L58/10—Coatings characterised by the materials used by rubber or plastics
    • F16L58/1009—Coatings characterised by the materials used by rubber or plastics the coating being placed inside the pipe

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

본 발명은 노후된 상하수관의 누수방지 및 수명 연장과 깨끗한 물을 공급하기 위하여 상수관 내면에 폴리에틸렌으로된 라이너를 삽착하는 과정에서, 상기 라이너를 상하수관내에 삽입이 용이하도록 라이너를 반지름 상으로 절첩한후 절첩된 라이너가 원상태로 펴지지 않도록 절첩된 라이너의 외면에 테이프를 나선형으로 묶어주는 폴리에틸렌 라이너의 절첩 묶음 장치에 관한 것이다.The present invention is to fold the liner radially to facilitate insertion of the liner in the water and sewage pipe in the process of inserting the polyethylene liner on the inner surface of the water pipe in order to prevent leakage of the old water and sewage pipe and to extend the life and supply clean water. The present invention relates to a folding liner of a polyethylene liner that spirally binds a tape to an outer surface of a folded liner so that the folded liner does not unfold.

즉, 본 발명은 절첩기(110)전면에 부착한 원륜형레이스(1)의 외경에 링기어(2)를 공회전되게 끼우며, 상기 링기어(2)의 일측에 부착되는 철편(3)에 테이프(101)의 걸이봉(4)과 안내로울러(5)(5')(6)(6')를 장설하며, 상기 절첩기(110)일측에 모터(7)의 구동력을 받아 링기어(2)를 교합 회전시키는 소기어(8)를 장착하여 절첩기(110)의 절첩로울러(112)(112')로 반지름상으로 절첩되어 원륜형레이스(1)의 중심을 관통하는 라이너 (100)의 주위를 걸이봉(4)의 테이프(101)풀림단이 공회전하면서 라이너(100)의 외주면에 나선상으로 권회 접착하는 테이프권회접착수단을 구성하여서 된 것이다.That is, in the present invention, the ring gear 2 is idly inserted into the outer diameter of the circular-shaped race 1 attached to the front of the folding machine 110, and the iron piece 3 is attached to one side of the ring gear 2. The hook rod 4 of the tape 101 and the guide rollers 5, 5 ′, 6, 6 ′ are installed, and the ring gear receives the driving force of the motor 7 on one side of the folding machine 110. 2) a liner 100 mounted radially by folding rollers 112 and 112 'of the folding machine 110 by attaching a small gear 8 for occlusal rotation to penetrate the center of the circular wheel race 1. The tape 101 unwinding end of the hook rod 4 around the circumference of the hanger 4 constitutes a tape winding adhesive means for spirally gluing the outer peripheral surface of the liner 100 in a spiral manner.

Description

노후상하수관용 폴리에틸렌 라이너의 절첩 묶음 장치{A folding binder of poly ethylene liner for old water pipe}Folding apparatus of polyethylene liner for old waste water pipes {A folding binder of polyethylene liner for old water pipe}

본 발명은 노후된 상하수관의 누수방지 및 수명 연장과 깨끗한 물을 공급하기 위하여 상수관 내면에 폴리에틸렌으로된 라이너를 삽착하는 과정에서, 상기 라이너를 상하수관내에 삽입이 용이하도록 라이너를 반지름 상으로 절첩한후 절첩된 라이너가 원상태로 펴지지 않도록 절첩된 라이너의 외면에 테이프를 나선형으로 묶어주는 폴리에틸렌 라이너의 절첩 묶음 장치에 관한 것이다.The present invention is to fold the liner radially to facilitate insertion of the liner in the water and sewage pipe in the process of inserting the polyethylene liner on the inner surface of the water pipe in order to prevent leakage of the old water and sewage pipe and to extend the life and supply clean water. The present invention relates to a folding liner of a polyethylene liner that spirally binds a tape to an outer surface of a folded liner so that the folded liner does not unfold.

일반적으로, 노후상하수관의 누수 및 녹물 방지와 수명 연장 및 깨끗한 물을 공급하기 위하여 노후상수관의 내면에 라이너를 삽착하는 것이며, 상기 라이너를 상하수관의 내면에 삽입하기위하여는 라이너를 반지름상으로 절첩하여 삽입하게 되는데, 파이프상의 라이너를 시공현장 까지 운반하기엔 부피가 너무커서 운반이 용이하지 않을 뿐만 아니라 시공현장에서 라이너를 반지름상으로 절첩하기에는 절첩하는데 필요한 장비를 운반 및 운전하기가 노상차량의 장애로 매우 불편하고 번거로운 문제점이 있어 공장에서 라이너를 반지름상으로 절첩하여 휠드럼에 권취하게 되면 우선 부피도 작아 운반이 용이 할 뿐만 아니라 시공이 간편한 잇점이 잇는 것이다.In general, the liner is inserted into the inner surface of the old sewage pipe in order to prevent leakage and rust of the old water and sewage pipe, to prolong the service life, and to supply clean water. It is not easy to carry because it is too big to carry the liner on the pipe to the construction site, and it is difficult to carry and operate the equipment necessary to fold the liner radially at the construction site. There is a problem that is very inconvenient and cumbersome due to obstacles, when the liner is folded radially in the factory and wound on the wheel drum, it is easy to carry as well as easy to carry because of its small volume.

그러나, 공장에서 라이너를 반지름상으로 절첩하여 휠드럼에 권취할 때 절첩기에서 절첩된 라이너가 휠드럼에 이르는 사이에 폴리에틸렌 라이너의 특수 재질이 갖는 탄성에 의하여 절첩된 상태에서 어떠한 구속력이 없으면 즉시 원상으로 펴지려하는 관계로 휠드럼에 완전히 펴진상태는 아니나 어느 정도 펴진 상태로 권취하게되므로 결국 부피가 커진 상태로 권취되어 휠드럼에 권취되는 량이 적을 뿐만 아니라 작업하기에도 불편한 문제점이 있는 것이다.However, when the liner is folded radially in the factory and wound on the wheel drum, if there is no restraining force in the folded state by the elastic material of the polyethylene liner between the folded liner and the wheel drum, Since it is not fully stretched on the wheel drum because it is to be unfolded, it is wound up in a stretched state to some extent, so that the volume is wound up in a bulky state so that the amount of winding on the wheel drum is not only small but also inconvenient to work.

본 발명의 목적은 절첩된 라이너의 외면에 테이프를 나선상으로 감아 절첩된상태를 유지시키도록 하는 테이프 권회접착수단을 갖는 노후 상수관용 라이너의 절첩 묶음 장치를 제공하는데 있는 것이다.SUMMARY OF THE INVENTION An object of the present invention is to provide a folding bundle device for an aged water pipe liner having a tape wound adhesive means for spirally winding a tape on an outer surface of a folded liner.

본 발명의 다른 목적은 상기 접착 테이프를 권착하는 시점에서 라이너가 완전히 절첩상태를 유지시키도록 하는 라이너 절첩인발수단을 구비한 노후 상하수관용 폴리에틸렌 라이너의 절첩 묶음 장치를 제공 하는데 있는 것이다.Another object of the present invention is to provide a folding-bundling apparatus of a polyethylene liner for an aged water and sewage pipe having a liner folding-out means for keeping the liner completely folded at the time of winding the adhesive tape.

본 발명의 또 다른 목적은 상기 다른 목적에서 기술한 완전절첩수단의 작용의 효과를 한층 높인 라이너 절첩인발수단을 구비한 노후 상수관용 폴리에틸렌 라이너의 절첩 묶음 장치를 제공하는데 있는 것이다.It is still another object of the present invention to provide a folding bundle device for polyethylene liner for aging water pipes having a liner folding and drawing means which further enhances the effect of the action of the complete folding means described in the other object.

본 발명에 맞추어 기재된 목적을 제공하는 노후 상하수관용 폴리에틸렌 라이너의 절첩 묶음 장치는 라이너를 반지름상으로 절첩하는 절첩기의 전면에 부착한 원륜형레이스와, 상기 원륜형레이스의 외경에 공회전되게 끼워지는 링기어와, 상기 링기어의 일측에 장착되는 걸이봉 및 안내로울러, 상기 링기어를 구동시키는 소기어로 되는 테이프 권회묶음수단과, 상기 절첩기의 전면에 연결되는 틀의 상면에 압착로울러와 압착인발로울러를 장설하여서 되는 라이너 절첩인발수단과, 상기 틀의 상면에 무한궤도 또는 인발로울러를 상하 대향으로 장설하여서 되는 라이너 절첩인발수단을 요부로 하고 있는 것이다.The folding bundle device of the polyethylene liner for the aged water and sewage pipe which provides the objective described by this invention is a circular-wheel race which affixed the front liner of the folding machine which folds a liner radially, and the ring which fits idlely to the outer diameter of the said circular-wheel race. A gear, a hook rod and a guide roller mounted on one side of the ring gear, a tape winding-bundling means of a small gear for driving the ring gear, and a pressing roller and a crimping drawer on the upper surface of the frame connected to the front of the folding machine. The liner fold-out means for installing the rollers and the liner fold-out means for installing the endless tracks or draw rollers on the upper surface of the frame in the vertical direction are provided as main parts.

도 1은 본 발명의 분해사시도.1 is an exploded perspective view of the present invention.

도 2는 본 발명중 접착테이프 권회접착수단의 구성을 보인 종단면도.Figure 2 is a longitudinal cross-sectional view showing the configuration of the adhesive tape wound bonding means of the present invention.

도 3은 본 발명중 접착테이프 권회접착수단의 작용을나타내보인 작용도.Figure 3 is an action showing the action of the adhesive tape wound adhesive means of the present invention.

도 4는 본 발명의 사용상태를 나타낸 측면도.Figure 4 is a side view showing a state of use of the present invention.

도 5는 본 발명중 라이너 절첩인발수단의 다른 실시예를 나타내보인 측면도.Figure 5 is a side view showing another embodiment of the liner folding draw means of the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1; 원륜형레이스. 2; 링기어.One; Circular wheel race. 2; Ring gear.

4; 걸이봉. 8; 소기어.4; Hanger rods. 8; Small gear.

22,22'; 압착로울러. 23,23'; 압착인발로울러.22,22 '; Crimping roller. 23,23 '; Rollers.

24;핸들.24; the handle.

34,34; 무한궤도.34,34; Caterpillar.

이하, 첨부된 도면에 따라 상세히 설명하면 다음과 같다.Hereinafter, described in detail with reference to the accompanying drawings as follows.

도 1은 본 발명의 분해사시도이고, 도 2는 본 발명중 테이프 권착수단, 도3은 도2의 작동예시도, 도4는 본 발명의 사용 상태도, 도5는 본 발명중 다른 테이프 완전절첩수단을 예시한 측면도로 이를 참조하여 보면, 라이너(100)를 반지름상으로로 절첩하는 절첩기(110)의 전면에 원륜형레이스(1)를 부착하여 상기 원륜형레이스(1)의 외경에 링기어(2)를 공회전되게 끼우고, 상기 링기어(2)의 일측에는 철편(3)을 연결하는데 이 철편(3)에는 두루마리로된 접착테이프(101)를 거는 걸이봉(4)과 상기 접착테이프(101)의 풀림단을 안내하는 안내로울러(5),(5'),(6)(6')를 장설하며, 상기한 절첩기(110)에 모터(7)로 구동되는 소기어(8)를 링기어(2)와 연동되도록 장설하여 상기의 절첩기(110)내부에 장설한 절곡받침로울러(111)(111')에 의하여 어느 정도 절곡된 라이너(101)가 절곡로울러(112)(112')에 의하여 절곡접합되어 원륜형레이스(1)의 중앙을 거쳐 외부로인발 되는 시점에서 링기어(3)의 회전에 따라 라이너(100)의 주위를 공전하는 접착테이프(101)의 풀림단이 안내로울러(5)(5')와 안내로울러(6)(6')로 안내되면서 라이너(100)의 외주면에 접착하게 되는데 접착되는 과정에서 라이너(100)가 계속적으로 인출되는 관계로 라이너(100)외주면에 접착테이프(101)가 나선형으로 감기면서 접착하게 되는 접착테이프 권회접착수단을 구성하여서 되는 것이다.Figure 1 is an exploded perspective view of the present invention, Figure 2 is a tape winding means of the present invention, Figure 3 is an operation example of Figure 2, Figure 4 is a state of use of the present invention, Figure 5 is another tape of the present invention Referring to this in a side view illustrating the folding means, by attaching a circular wheel race 1 to the front of the folding machine 110 for folding the liner 100 in a radial direction to the outer diameter of the circular wheel race (1) The ring gear (2) is inserted into the idle, and one side of the ring gear (2) is connected to the iron piece (3), the iron piece (3) hanger rod (4) hanging the adhesive tape 101 made of roll and the Guide rollers (5), (5 '), (6) (6') to guide the release end of the adhesive tape 101 is installed, the small gear driven by the motor (7) in the folding machine 110 Liner 101 bent to some extent by bending support rollers 111 and 111 'installed inside the folding machine 110 by installing 8 to be interlocked with ring gear 2 to roll Adhesive tape 101 revolving around the liner 100 in accordance with the rotation of the ring gear 3 at the time when it is bent and joined by (112) (112 ') and drawn out through the center of the circular wheel race (1). The release end of the guide is guided to the guide rollers 5, 5 'and the guide rollers 6, 6' and adheres to the outer circumferential surface of the liner 100. The liner 100 is continuously drawn out during the adhesion process. In this regard, the adhesive tape 101 is wound on the outer circumferential surface of the liner 100 so as to constitute an adhesive tape wound-adhesive means.

또한, 본 발명은 절첩기(110)의 전면에 볼트등으로 연결하는 기틀(20)의 상면 좌우에 축받이틀(21)을 형성하여 상기 축받이틀(21)의 전후방에 상하로 일정간격을 둔 압착로울러(22)(22')와 압축인발로울러(23)(23')는 그 연결축 (26)(26')일측 외단부에 평기어를 맞물림으로 연결하고 연결축(26')의 타측 단부에는 체인기어(27)에 연결하여 별도로 장착되는 모터의 구동력을 상기 체인기어(27)에연결하여 상기한 접착테이프 권회접착수단의 중앙을 관통해 나오는 절첩된 라이너(100)를 압착로울러(22)(23')사이에 물려 압착인발로울러 (23)(23')의 구동으로 라이너(100)를 절곡압착한 상태로 인발하도록 함으로서 권취드럼(120)에 부피가 작게 권취하도록 하는 라이너 절첩인발수단을 구성하여서 된 것이며, 또한 본 발명은 기틀(20)상면의 축받이틀에 구동로울러(30)(30')와 피동로울러(31)(31')및 다수개의 평로울러(32)(32')를 장설하여 상기 구동로울러(30)(30')와 피동로울러(31)(31') 및 평로울러(32)(32')를 폭이 넓은 연동벨트(33)(33')를 씌워 공지의 무한궤도(34)(34')를 구성하여 절곡로울러(112)(112')로부터 절골접합된 상태로 인발되어 나오는 라이너(100)를 무한궤도(34)(34')사이에 물려 절곡접합된 상태로 인발되도록하는 라이너 절첩인발수단을 구비하여서 된 것이다.In addition, the present invention forms a bearing frame 21 on the left and right of the upper surface of the base 20 to be connected to the front of the folding machine 110 by a bolt or the like, and the pressing space is spaced up and down in front and rear of the bearing frame 21. The rollers 22, 22 'and the compression drawing rollers 23, 23' engage the spur gears on one end of the connecting shafts 26, 26 ', and the other end of the connecting shaft 26'. In connection with the chain gear 27, the driving force of the separately mounted motor is connected to the chain gear 27 to the folded liner 100, which penetrates through the center of the above-mentioned adhesive tape winding-adhesion means, by pressing the roller 22. The liner folding and pulling means for winding the liner 100 with a small volume by pulling the liner 100 in a bent and compressed state by being driven by the crimping rollers 23 and 23 ' In addition, the present invention is a drive roller (30, 30 ') and driven to the bearing of the upper surface of the base 20 Rollers 31, 31 'and a plurality of rollers 32, 32' are installed to drive the rollers 30, 30 ', driven rollers 31, 31' and roller 32 ( 32 ') covers a wide interlocking belt 33 (33') to form a known endless track (34) (34 ') to be pulled out from the bending rollers 112, 112' The liner 100 is provided with a liner folding and pulling means for drawing the liner 100 between the crawler 34 and 34 'to be drawn in a folded state.

이상과 같이된 본 발명은 절첩기(110)의 절첩로울러(112)(112')에 의하여 반지름상으로 절곡변형된 상태로 인발되어 나오는 라이너(100)의 외주면에 테이프 권착수단에 의하여 테이프(101)를 나선상으로 접착함으로서 접착된 테이프(101)가 절곡접합된 라이너(100)의 벌려지려하는 탄성을 억제 하는 묶음끈의 역할을 하는 관계로 라이너(100)를 부피가 작게 권취드럼(12)에 권취하게 되는 것이다.The present invention as described above is a tape (by tape wrapping means on the outer peripheral surface of the liner 100 drawn out in a state that is bent in a radially bent state by the folding rollers 112, 112 'of the folding machine 110 ( By winding 101 in a spiral shape, the wound tape 12 has a smaller volume as the adhered tape 101 serves as a bundle strap that suppresses the elasticity of the bent bonded liner 100 to spread. Will be wound on.

또한, 라이너 접첩인발수단이 절첩로울러(112)(112')로 부터 절곡접합되어 인발되는 폴리에틸렌 라이너(100)가 그 특성상 탄성에 의하여 절첩로울러(112)(112')를 지나는 순간 벌려지려함을 억제하는 관계로 라이너(100)의 절첩접합상태를 유지시킨 상태에서 묶음테이프(120)를 나선상으로 권취하여 묶음으로서 단순히 절첩로울러(112)(112')에만 의존하여 절첩한 후 묶음테이프(120)로 묶는 것 보다는 좀더 부피가 작게 묶게되는 잇점이 있어 권취드럼에 많은 양의 절첩된 라이너(100)를 권취하게 되는 효과를 나타내는 것이다.In addition, the polyethylene liner 100, which is folded and drawn from the folding rollers 112 and 112 ', is drawn from the folding rollers 112 and 112' by the elasticity. By holding the bundled tape 120 spirally in a state in which the folded bonded state of the liner 100 is maintained in a restrained relationship, the bundle tape 120 is simply folded depending on the folding rollers 112 and 112 'and then bundled. There is an advantage that the bundle is bundled in a smaller volume than to bind to a large amount of winding liner 100 in the winding drum to show the effect.

Claims (3)

절첩기(110)전면에 부착한 원륜형레이스(1)의 외경에 링기어(2)를 공회전되게 끼우며, 상기 링기어(2)의 일측에 부착되는 철편(3)에 테이프(101)의 걸이봉(4)과 안내로울러(5)(5')(6)(6')를 장설하며, 상기 절첩기(110)일측에 모터(7)의 구동력을 받아 링기어(2)를 교합 회전시키는 소기어(8)를 장착하여 절첩기(110)의 절첩로울러(112)(112')로 반지름상으로 절첩되어 원륜형레이스(1)의 중심을 관통하는 라이너 (100)의 주위를 걸이봉(4)의 테이프(101)풀림단이 공회전하면서 라이너(100)의 외주면에 나선상으로 권회 접착하는 테이프권회접착수단을 구성하여서 되는 노후상하수관용 폴리에틸렌 라이너의 절첩 묶음 장치.The ring gear 2 is idly inserted into the outer diameter of the circular-shaped race 1 attached to the front of the folding machine 110, and the tape 101 is attached to the iron piece 3 attached to one side of the ring gear 2. The hook rod 4 and the guide rollers 5, 5 ', 6 and 6' are installed, and the ring gear 2 is bite-rotated by the driving force of the motor 7 on one side of the folding machine 110. Hanging rods around the liner 100, which are folded radially into the folding rollers 112 and 112 'of the folding machine 110 by mounting the small gear 8 to pass through the center of the circular wheel race 1. (4) The folding apparatus of the polyethylene liner for old water and sewage pipes which comprises the tape winding adhesive means which spirally winds up on the outer peripheral surface of the liner 100 while the unwinding end of the tape 101 is idle. 청구항 1항에 있어서, 절첩기(110)의 테이프 권회접착수단 전면부에 연결하는 기틀(20)의 상면 좌우에 장착하는 축받이틀(21)(21')의 일측에는 압착로울러(22)(22')를 타측에는 기어의 맞물림으로 연동되는 압착인발로울러(23)(23')를 장설하여 상기 압축로울러(22)와 압축인발로울러(23)는 핸들(24)과 스크류(25)로 간격조절을 할 수 있도록 장설하여서 되는 라이너 절첩 압착인발수단을 구비한 노후상하수관용폴리에틸렌라이너의 절첩 묶음 장치.The pressing roller (22) (22) according to claim 1, wherein the bearing rollers (22) (22) are mounted on one side of the bearing frames (21) (21 ') mounted on the upper and left sides of the base (20) connected to the front surface of the tape winding-adhesive means of the folding machine (110). ') On the other side of the compression roller (23, 23') interlocked by the engagement of the gear is installed, the compression roller 22 and the compression roller (23) is adjusted by the handle 24 and screw 25 Folding liner device of the polyethylene liner for old and sewage pipes having a liner folding crimping means to be installed so as to be. 청구항 2항에 있어서, 기틀(20)상면의 축받이틀에 장설한 구동로울러(30)(30')와 피동로울러(31)(31')및 다수개의 평로울러(32)(32')를 연동벨트(33)(33')로 씌워서 되는 공지의 무한궤도(34)(34')를 대향으로 장설하여 라이너 절첩압착수단을 구비한 노후상하수관용 라이너의 절첩 묶음 장치.The drive rollers 30, 30 ', the driven rollers 31, 31', and the plurality of rollers 32, 32 'interlocked with the bearing rollers on the upper surface of the base 20. A device for folding a liner for an aged sewage pipe provided with a liner folding crimping means, which is provided with a known tracked track 34, 34 ', which is covered by belts 33, 33'.
KR10-2000-0033690A 2000-06-19 2000-06-19 A folding binder of poly ethylene liner for old water pipe KR100378230B1 (en)

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Publication number Priority date Publication date Assignee Title
CN117772840A (en) * 2024-02-28 2024-03-29 常州润来科技有限公司 Copper pipe internal thread continuous forming device and use method

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KR102146671B1 (en) * 2020-02-07 2020-08-28 주식회사 벽진테크 Lining pipe forming equipment for non-excavated pipeline repair

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117772840A (en) * 2024-02-28 2024-03-29 常州润来科技有限公司 Copper pipe internal thread continuous forming device and use method
CN117772840B (en) * 2024-02-28 2024-04-30 常州润来科技有限公司 Copper pipe internal thread continuous forming device and use method

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