KR950008469B1

KR950008469B1 - Method for manufacturing coupling flange for plastic pipe and the same

Info

Publication number: KR950008469B1
Application number: KR1019920023015A
Authority: KR
Inventors: 윤승규
Original assignee: 주식회사연합고리; 이길수
Priority date: 1992-12-02
Filing date: 1992-12-02
Publication date: 1995-07-31
Also published as: KR940015346A

Abstract

The method manufactures the resin pipe connection flange to prevent the breakaway of pipes and water leakage. The method comprises the steps of: forming a screwed groove(5) on the circumference of the pipe(1); inserting a coil spring(2) into the groove(5); coverring non-molten seat type resin(6a) over the spring(2), and hardening the resin; cutting the covered resin into a flange shape while rotating the pipe; perforating a bolt hole.

Description

Method for manufacturing connection part of underground resin composite board

제1도는 본 발명의 제조방법에 의해 접속부가 성형된 수직관체의 요부를 보인 반단면도.1 is a half sectional view showing a main portion of a vertical tube in which a connecting portion is molded by the manufacturing method of the present invention.

제2도의 (a) 내지 (e)도 본 발명의 수직관체에 접속부를 성형하는 제조공정을 각 공정별르 순차적으로 도시한 것으로,(A)-(e) of FIG. 2 also show the manufacturing process of forming a connection part in the vertical pipe | tube of this invention sequentially by each process,

(a)도는 관체의 단부를 나선형으로 절삭가공하는 제1 공정도이고,(a) is a 1st process chart which helically cuts the edge part of a tubular body,

(b)도는 나선형의 홈에 코형의 스프링을 끼워넣는 제2 공정도이며,(b) is a 2nd process drawing which fits a spring of a nose in a spiral groove,

(c)도는 제2공정 완료된 관체의 단부에 시이트형 수지를 돌려감은 상태를 표시한 제3 공정도이고,(c) is a 3rd process chart which shows the state which rolled the sheet-type resin to the edge part of the pipe body of which the 2nd process was completed,

(d)도는 관체의 단부에 돌려감겨진 시이트형 수지를 접속부로서 적합하게 절삭가공한 상대의 제4 공정도이며,(d) is the 4th process drawing of the partner which cut suitably the sheet-type resin wound by the edge part of the tubular body as a connection part,

(e)도는 접속부에 체결용 구멍을 뚫은 제5 공정도로서 측면을 도시함.(e) shows the side surface as a 5th process drawing which made the fastening hole to the connection part.

제3도는 본 발명의 다른 실시예를 나타내는 일부 확대 단면도.3 is a partially enlarged cross-sectional view showing another embodiment of the present invention.

제4도는 종래의 접속부를 갖는 관체를 보인 일부 단면도.4 is a partial cross-sectional view showing a tube having a conventional connecting portion.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 관체 2 : 코일스프링1: pipe body 2: coil spring

3a : 회전대 3b : 회전보빈3a: rotary table 3b: rotary bobbin

4 : 절삭기 5 : 홈부4 cutting machine 5 groove

6 : 접속부 6a : 시이트형 수지6: Connection part 6a: Sheet type resin

7 : 보울트체결구멍7: bolt fastening hole

본 발명은 지하매설용 합성수지재 관체의 접속부 제조방법 및 그 물건에 관한 것으로, 접속부 (일명 "후렌지"라 칭함)가 관체와 이질감이 없이 일체화로 성형되게 하여, 접속부가 관체로부터 이탈됨이 없고 접속부와 관체간에 누수가 발생하지 않도록함과 동시에, 관체의 설치작업이 용이토록함에 주안점을 둔 것이다.The present invention relates to a method for manufacturing a connection part of a synthetic resin pipe for underground laying, and the article thereof. The main focus is on preventing leakage between the pipe and the pipe and at the same time making the pipe easy to install.

종래 수직관계의 접속부의 구조는 제4도와 같은 구조로 되어 있다.The structure of the connection part of the vertical relationship conventionally has a structure like FIG.

즉, 관체(11)에 접속부(12)를 부착형성함에 있어서는 소켓 형상의 접속부(12)를 별도로 성형가공하여 이와 같이 가공된 접속부(12)를 접착제(13)를 매체로하여 관체(11) 양단부의 외측둘레부에 끼워 일체화로 고정부착시키고, 이어서 견고성을 향상시키기 위하여 접속부(12)의 후단부를 접착성수지(l3a)로 밀봉접합하여 접속부(12)를 가지는 관체(11)를 형성하였던 것이다.That is, in attaching and forming the connecting portion 12 to the tubular body 11, both ends of the tubular body 11 are formed by forming and processing the socket-shaped connecting part 12 separately using the adhesive part 13 as a medium. The outer end portion of the connecting portion 12 was fixedly attached to the outer periphery thereof, and then the rear end portion of the connecting portion 12 was hermetically sealed with an adhesive resin l3a to form a tubular body 11 having the connecting portion 12.

그러나, 상기한 종래의 구조는 접속부(12)가 관체(11)에 접합된 구조로 되어 있으므로 장시간 사용시 서로간에 이질감이 생겨 밀봉력이 현격히 떨어져 누수가 발생되었던 것이며, 또한 시공시에는 양측의 관체를 서로 끌어당겨 접속시키게 되는데 이때, 접속부의 접합력이 미약하여 접속부(12)가 관체(11)로부터 이탈하는 경우가 발생하였던 것이다.However, the conventional structure described above has a structure in which the connecting portion 12 is bonded to the tube body 11, so that heterogeneity is generated between them for a long time, so that the sealing force is greatly reduced, and leakage occurs at the time of construction. In this case, the connection force of the connection part is weak and the connection part 12 is separated from the tube body 11 in this case.

본원 발명은 상기의 결함을 감안하여 수직관체에 견고한 접속부를 제공하고자 안출한 것으로, 그 제조방법 및 구조를 살펴보면 다음과 같다.The present invention devised to provide a solid connection to the vertical tube in view of the above-mentioned defects, looking at the manufacturing method and structure as follows.

제1 공정(관체 단부절삭 가공공정)1st process (pipe end cutting process)

제2도(a)에서 도시한 바와 같이 관체(1)를 회전대(3a)에 물려 회전시키면서 단체(1) 단부를 절삭기(4)에 의해 홈부(5)가 형성되도록 나선형으로 절삭가공한다.As shown in Fig. 2 (a), the tubular body 1 is cut by the rotating table 3a while being helically cut so that the groove 5 is formed by the cutting machine 4 at the end of the body 1.

제2 공정 (스프링 삽입공정)2nd process (spring insertion process)

제2도(b)에 도시한 바와 같이 제1 공정에서 얻어진 관체(1)의 단부에 소정의 피치를 갖는 코일스프링(2)를 끼워넣는다.As shown in Fig. 2 (b), the coil spring 2 having a predetermined pitch is inserted into the end of the tube 1 obtained in the first step.

이때, 코일스프링그(2)은 관체(1)에 형성된 홈부(5)를 안내하여 끼워넣는데 회전시키면서 끼워넣어 관체(1)와 일체화가 되도록 한다.At this time, the coil spring 2 guides and inserts the groove 5 formed in the tube 1 while being rotated so as to be integrated with the tube 1.

제3 공정(시이트형 수지 감음공정)Third process (sheet type resin winding process)

제2도(c)에서 도시한 바와 같이 코일스프링(2)이 끼워진 관체(1)의 양단부를 회전보빈(3b)에 물려 회전시킴과 동시에 코일스프링(2)이 끼워진 관체(1) 단부의 외측면에 시이트형 수지(6a)를 붕대를 감듯이 소정의 두께 (접속부가 형성되어야 할 직경보다 다소 큰 직경이 되도록)로 감는다.As shown in FIG. 2 (c), both ends of the tubular body 1 into which the coil spring 2 is fitted are bitten by the rotary bobbin 3b, and at the same time, the outer end of the tubular body 1 into which the coil spring 2 is fitted. The sheet-like resin 6a is wound on a side surface with a predetermined thickness (to be a diameter slightly larger than the diameter to be formed).

이때, 시이트형 수지(6a) 는 성형기로부터 압출된 즉시 경화되지 아니한 상태로 관체(1)의 단부에 감기면서 융착되는 것으로 시이트형 수지(6a)는 마치 고무줄과 같이 늘어지면서 팽팽히 감겨 융착되므로 더욱더 견고해지고 감기는 상대는 전후부가 정돈되지 아니한 상태로 감겨지면서 융착된다.At this time, the sheet-type resin 6a is fused while being wound on the end of the tube 1 in an uncured state immediately after being extruded from the molding machine. The opponent becomes cold and is fused while the front and back are unwrapped.

제4 공정 (절삭가공공정)4th process (cutting process)

관체(1)를 회전대(3a)에 물려 회전시키면서 관체(1)의 양단부에 감겨져 융착된 시이트형 수지(6a)를 제2도(d)에서 도시한 바와 같이 절삭기(4)에 의해 절삭가공하여 소정형상의 접속부(6)로 성형가공한다.The sheet-like resin 6a wound around both ends of the tube 1 while being plied by the rotary table 3a and rotated is cut by the cutting machine 4 as shown in FIG. Molding is carried out to the connecting portion 6 of a predetermined shape.

이때, 시이트형 수지(6a)의 전후부 및 원주외측둘레부는 절삭기(4)에 의해 접속부(2)로서 가능하게 깨끗이 절삭된다.At this time, the front-back part and the circumferential outer peripheral part of the sheet-like resin 6a are cut cleanly as possible as the connection part 2 by the cutting machine 4. As shown in FIG.

제5 공정(체결구멍 가공공정)5th process (fastening hole processing process)

상기와 같이 제4 공정을 거쳐 얻어진 접속부(6)에 제2도(e)에서 도시한 바와 같이 보울트(8)를 끼워 체결할 수 있는 체결구멍(7)을 드릴머시인에 의해 뚫어 접속부(6)가 형성된 완성된 관체(1)를 얻는다.As shown in FIG. 2 (e), the connecting hole 6 through which the bolt 8 can be fastened to the connecting portion 6 obtained through the fourth step as described above is drilled by the drill machine. The completed tubular body 1 in which () was formed is obtained.

이때, 체결구멍(7)은 소정의 간격으로 등분하여 뚫으면 된다.At this time, the fastening holes 7 may be drilled equally at predetermined intervals.

이와 같은 제조공정을 거쳐 얻어진 본원 발명의 관체(1)는 그 접속부(6)가 경화되지 아니한 시이트형 수지(6a)로서 팽팽히 긴장되면서 감겨져 일체화로 융착되므로 장기간 사용하더라도 종래와 같이 관체(1)와 접속부(6)간에 이탈 및 박리현상이 발생하여 누수될 염려가 없어 안정되게 사용될 수 있으며, 특히 시이트형 수지(6a)가 나선형의 관체(1) 외측면에 끼워진 코일스프링(2) 사이에 일체로 융착되어 있으므로 차후, 현장에 곤체 접속시 접속부(6)를 다소 무리하게 끌어당겨 접속하더라도 종래와 같이 관체(l)로부터 접속부 (6)가 이탈할 염려가 없는 것이다.The tubular body 1 of the present invention obtained through such a manufacturing process is wound as a sheet-type resin 6a in which the connection part 6 is not cured and is squeezed tightly and fused in an integrated manner, so that the tubular body 1 and the tubular body 1 can be used as in the prior art even if used for a long time. It can be used stably because there is no fear of leakage due to separation and peeling phenomenon between the connecting parts 6, in particular, the sheet-like resin 6a is integrally formed between the coil springs 2 fitted on the outer surface of the spiral tube 1. Since it is fused, there is no fear that the connecting portion 6 will be detached from the tube 1 as in the prior art even if the connecting portion 6 is forcibly pulled and connected to the site at the time of connection of the tortilla.

즉, 코일스프링(2)은 고나체(1)와 접속부(6) 사이에 설치되어 앵커 역할을 하므로 곤체(1)와 접속부(6)는 일체화가 되어 견고한 접속부(6)를 갖는 관체(1)를 얻을 수 있는 것이다.That is, since the coil spring 2 is installed between the spool 1 and the connection part 6 to serve as an anchor, the tube 1 and the connection part 6 are integrated to have a rigid connection part 6 having a rigid connection part 6. Will be obtained.

한편, 본원 발명과 극히 유사한 예로서, 제3도와 감이 가공하면 본원 발명과 동일한 효과를 얻을 수 있다.On the other hand, as an example very similar to the present invention, the same effect as the present invention can be obtained when the third degree and the persimmon are processed.

즉, 관체(1) 단부의 홈부(5)에 끼워지는 코일스프링(2)을 피치가 높게 형성된 코일스프링(2)을 끼워넣은후 상기한 본 발명의 제조공정 순서대로 시이트형 수지 감음공정 및 접속부 절삭가공공정을 차례로 행하고, 이어서 체결구멍 가공공정시 코일스프링(2)에도 동시에 체결구멍(7)을 뚫는다.That is, the sheet-type resin winding process and the connecting portion in the order of the manufacturing process of the present invention described above after inserting the coil spring 2 formed with a high pitch into the coil spring 2 fitted into the groove 5 at the end of the tube 1. The cutting processing step is performed in sequence, and then the fastening hole 7 is also drilled at the same time in the coil spring 2 during the fastening hole processing step.

따라서, 차후 접속부(6) 체결시 더욱 견고한 접속부를 제공하게 되는 것이다.Therefore, it is to provide a more robust connection in the subsequent connection (6).

Claims

In forming the connecting portions 6 at both end portions of the tubular body 1, the first step of cutting to form a helical groove 5 on the outer peripheral surface of the end of the tubular body 1, and at the end of the tubular body 1 The second step of inserting the coil spring 2 into the formed groove 5, the sheet-shaped resin 6a which is not cured at the end of the tube 1 in which the coil spring 2 is fitted is wound to a predetermined thickness and fused. A third step of cutting, a fourth step of cutting the sheet-shaped resin 6a wound in the third step while rotating the tubular body 1 into a predetermined connection portion 6 shape, and a cutting step of the fourth step. A method of manufacturing a connection part for underground resin laying synthetic resin pipes, characterized in that it comprises a fifth step of drilling a bolt fastening hole (7) in the connection part (6).

In the well-known thing which fixedly attached the connection part 6 to the both ends of the tubular body 1, the said connection part 6 was inserted into the groove part 5 of the end peripheral surface of the tubular body 1, and the coil spring inserted ( Connection part of underground resin laying synthetic resin pipe, characterized in that the joint is fixed to the pipe body (1) side using 2) as an anchor.