KR950008468B1

KR950008468B1 - Method for manufacturing coupling flange for plastic pipe and the same

Info

Publication number: KR950008468B1
Application number: KR1019920022542A
Authority: KR
Inventors: 윤승규
Original assignee: 주식회사연합고리; 이길수
Priority date: 1992-11-27
Filing date: 1992-11-27
Publication date: 1995-07-31
Also published as: KR940011163A

Abstract

A method of manufacturing a flanged connector (2) for a spiral plastics tube (1) to be burried underground consists of a first process of winding and curing an uncured resin sheet (2a) around the end portion of the spiral tube in a multi-layer enough to have a suitable thickness, a second process of lathing the cured resin on the spiral tube into a figure of flanged connector. and a third process of drilling a number of screw holes (5) at the equiangular position on the flange of the connector.

Description

Method for manufacturing connection part of underground resin composite pipe

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

제2도는 본 발명의 나선형관체에 접속부를 성형하는 제조공정을 나타내는 것으로,2 shows a manufacturing process for forming a connecting portion in the spiral tube of the present invention.

a)는 단체의 단부에 시이트형수지를 돌려감은 상태를 표시한 제1공정도이고,a) is a 1st process chart which shows the state which wound the sheet type resin at the edge of single body,

b)는 관체의 단부에 둘려감겨진 시이트형수지를 접속부로서 적합하게 절삭가공한 상태의 제2공정도이며,b) is a 2nd process drawing of the sheet-shaped resin wound by the edge part of the pipe suitably cut as a connection part,

c)는 접속부에 체결용구멍을 뚫은 제3 공정도로서 측면을 도시함.c) shows a side view as a third process diagram in which a fastening hole is drilled in a connecting portion.

제3도 및 제4도는 수직관체에 접속부를 성형하기 위하여 관체단부를 1차 가공한 상태의 수지직관.3 and 4 are resin straight pipes in a state in which the pipe end portion is first processed to form a connection portion in a vertical pipe body.

제5도는 종래의 접속부를 갖는 관체는 보인 일부단면도.5 is a partial sectional view showing a tube having a conventional connecting portion.

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

1 : 관체 2 : 접속부1: tube 2: connection part

2a : 시이트형수지 3 : 회전보빈2a: sheet type resin 3: rotary bobbin

3a : 회전공구대 4 : 절삭기3a: rotary tool bar 4: cutting machine

5 : 보울트의 체결구멍 7a, 7b : 수직관체에 형성된 요철부5: Bolting holes 7a, 7b: Uneven portion formed in the vertical pipe

8 : 수직관체에 형성된 요홈부8: groove formed in the vertical tube

본 발명은 지하매설용 합성수지재 관체의 접속부제조방법 및 그 물건에 관한 것으로, 접속부가 관체와 이질감이 없이 일체화로 성형되게 하여, 접속부가 단체로부터 이탈됨이 없고 접속부와 관체간에 누수가 발생하지 않도록함과 동시에, 관체의 설치작업이 용이토록함에 주안점을 둔 것이다.The present invention relates to a method of manufacturing a connection part of a synthetic resin pipe for underground laying and its object, which allows the connection part to be molded integrally without any heterogeneity with the pipe, so that the connection part is not separated from the body and no leakage occurs between the connection part and the body. At the same time, the emphasis is on the ease of installation of the tube.

종래 관체의 접속부의 구조는 제5도와 같은 구조로 되어 있다.The structure of the connection part of a conventional pipe | tube has the structure like FIG.

즉, 단체(11)에 접속부(12)를 부착형성함에 있어서는 소켓형상의 접속부(12)를 별도로 성형가공하여 이와같이 가공된 접속부(12)를 접착제(13)를 매체로하여 관제(11) 양단부의 외측둘레부에 끼워 일체화로 고정부착시키고, 이어서 견고성을 향상시키기 위하여 접속부(12)의 후단부를 접착성수지(13a)로 밀봉접합하여 접속부(12)를 가지는 관체(11)를 형성하였던 것이다.That is, in attaching and forming the connecting portion 12 to the single body 11, the socket-shaped connecting portion 12 is separately molded and processed so that the processed portions 12 are treated using the adhesive 13 as a medium. The tubular body 11 having the connecting portion 12 was formed by sealingly bonding the rear end portion of the connecting portion 12 with the adhesive resin 13a so as to be integrally fixed to the outer periphery, and then to improve the tightness.

그러나, 상기한 구조는 도시한 바와 같이 외부면이 평탄한 수직관체에만 가능하며 관체(11)가 나선관일 경우에는 관체(11)에 골이 형성되어 있으므로 상기와 같이 끼워 고정시킬 수 없어 별도의 클램프형상의 접속구를 사용하였던 것이다.However, the structure described above is possible only for a vertical tube having a flat outer surface, and when the tube 11 is a spiral tube, since a valley is formed in the tube 11, the clamp cannot be inserted and fixed as described above. The connection port of was used.

한편, 상기한 종래의 구조는 접속부(12)가 관체(11)에 접합된 구조로 되어 있으므로 장시간 사용시 서로간에 이질감이 생겨 밀봉력이 현격히 떨어져 누수가 발생되었던 것이며, 고정부착된 힘이 미약하여 양관체를 접속부로서 접속설치시 길이방향(횡방향)으로 인장력이 발생하게 되는데, 이때 접속부(12)가 관체(11)와 견고하게 부착되지 못해 접속부(12)가 관체(11)로부터 이탈하는 경우가 발생하였던 것이다.On the other hand, the conventional structure described above is 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 remarkably dropped, and a leak is generated. Tensile force is generated in the longitudinal direction (lateral direction) when connecting the sieve as a connecting portion. At this time, the connecting portion 12 is not firmly attached to the tubular body 11, so that the connecting portion 12 is separated from the tubular body 11. It happened.

본원발명은 상기의 결함을 감안하여 관체의 형상이 굴곡형으로된 나선관은 물론 직관에 관계없이 견고한 접속부를 제공하고자 안출한 것으로, 먼저 통상의 나선형으로된 관체(1)에 접속부를 성형하는 제조방법 및 구조를 살펴보면 다음과 갈다.The present invention has been made in view of the above-described defects to provide a rigid connection, regardless of the straight pipe as well as the spiral tube of the shape of the tube, firstly manufactured to form a connection to the conventional spiral tubular body (1) Looking at the method and structure, it goes as follows.

제1 공정(시이트형수지감음공정)First process (sheet type resin winding process)

제2도(a)에서 도시한 바와 같이 나선형으로 성형된 관체(1)의 양단부를 회전보빈(3)에 물려 회전시킴과 동시에 관체(1)의 단부에 시이트형의 수지(2a)를 붕대를 감듯이 소정의 두께(접속부가 형성될 수 있을 만큼의 두께)로 감는다.As shown in FIG. 2A, both ends of the spirally shaped tubular body 1 are rotated by the rotary bobbin 3, and the sheet-shaped resin 2a is bandaged at the end of the tubular body 1. As shown in FIG. As if wound, it is wound to a predetermined thickness (thick enough to form a connection portion).

이때, 시이트형수지(2a)는 성형기로부터 압출된 즉시 경화되지 아니한 상태로 관체(1)의 단부에 감기면서 융착되는 것으로 시이트형수지(2a)는 고무줄과 같이 늘어지면서 팽팽히 감겨 융착되므로 더욱더 견고해지고, 감기는 형상은 도시한 바와 같이 전후부가 정돈되지 아니한 상태로 감겨지면서 응착된다.At this time, the sheet-type resin (2a) is fused while being wound on the end of the tube (1) in an uncured state immediately after being extruded from the molding machine, so that the sheet-type resin (2a) is stretched and wound like a rubber band and welded more and more firmly. As shown, the winding shape is wound while the front and rear portions are wound without being trimmed.

제2 공정(절삭가공공정)2nd process (cutting process)

관체(1)를 회전공구대(3a)에 물려 회전시키면서 관체(1)의 양단부에 감겨져 융착된 시이트형수지(2a)를 제2도(b)에서 도시한 바와 같이 절삭기(4)에 의해 절삭가공하여 소정형상의 접속부(2)로 성형가공한다.The sheet-shaped resin 2a wound around both ends of the tube 1 while being plied by the rotary tool stand 3a and fused is cut by the cutting machine 4 as shown in FIG. It is processed and molded into the connection part 2 of a predetermined shape.

이때, 시이트형소지(2a)의 전후부 및 원주외측둘레부는 절삭기(4)에 의해 접속부(2)로서 가능하게 깨끗이 절삭되다.At this time, the front and rear portions and the circumferential outer peripheral portion of the sheet-like substrate 2a are cleanly cut as possible as the connecting portion 2 by the cutting machine 4.

제3 공정(체결구멍 가공공정)3rd process (fastening hole processing process)

상기와 같이 제2 공정을 거쳐 얻어진 접속부(2)에 제2도(c)에서 도시한 바와 같이 보울트(6)를 끼워 체결할 수 있는 체결구멍(5)을 드릴머시인에 의해 뚫어 접속부(2)가 형성된 완성된 관체(1)를 얻는다.As shown in FIG. 2 (c), the drilling hole 5 through which the bolt 6 can be fastened to the connecting portion 2 obtained through the second step as described above is drilled by the drill machine. The completed tubular body 1 in which () was formed is obtained.

이때, 체결구멍(5)은 소정의 간격으로 등분하여 뚫으면 된다.At this time, the fastening holes 5 may be drilled equally at predetermined intervals.

이와 같은 제조공정을 거쳐 얻어진 본원발명의 관체(1)는 그 접속부(2)가 경화되지 아니한 시이트형수지(2a)로서 팽팽히 긴장되면서 감겨져 일체화로 융착되므로 장기간 사용하더라도 종래와 같이 관체(1)와 접속부(2)간에 이탈 및 박리현상이 발생하여 누수될 염려가 없어 안정되게 사용될 수 있으며, 특히 시이트형수지(2a)가 나선형의 관체(1)의 골내에 충진되어 일체로 융착되어 있으므로 차후, 현장에서 관체접속시 접속부(2)를 다소무리하게 끌어당겨 접속하더라도 종래와 같이 관체(1)로부터 접속부(2)가 이탈할 염려가 없는 것이다.The tubular body 1 of the present invention obtained through such a manufacturing process is wound as a sheet-shaped resin 2a in which the connection part 2 is not cured, and is squeezed tightly and fused in one piece. Since there is no fear of leakage due to separation and peeling between the connecting parts 2, it can be used stably. Particularly, the sheet-type resin 2a is filled in the valley of the spiral tube 1 and is integrally fused. In the tubular connection, even if the connection part 2 is pulled in somewhat unreasonably, there is no fear that the connection part 2 will be separated from the tube body 1 as in the prior art.

상기에서는 나선형으로된 관체(1)에 있어서의 접속부(2) 제조방법을 설명하고 있으나, 둘레면이 평탄한 수직관체에 있어서는 다음과 같이 가공하편 동일한 효과를 얻을 수 있다.In the above, the manufacturing method of the connection part 2 in the spiral tubular body 1 is demonstrated, but in the vertical tubular body with a flat peripheral surface, the same effect can be acquired as follows.

즉, 제3도에서 도시한 바와 같이 수직으로된 관체(1)의 양측단부 외측 둘레면을 먼저 별도의 절삭기에 의해 요철부(7a)(7b)가 되도록 절삭기공한 후 상기한 본 발명의 제조방법과 동일한 공정순서로 요철부(7a)(7b)면에 시이트형수지(2b)를 융착시켜 가공을 하면 접속부(2)가 형성되는 것으로 본원발명과 같은 동일한 효과를 얻을 수 있는 것이다.That is, as shown in FIG. 3, the outer periphery of both side ends of the tubular body 1, which is vertical, is first cut to form the uneven parts 7a and 7b by a separate cutting machine, and then the manufacturing method of the present invention described above. When the sheet type resin 2b is fused and processed to the uneven parts 7a and 7b in the same process sequence as described above, the connection part 2 is formed, and the same effect as in the present invention can be obtained.

또한, 제4도에서 도시한 바와 같이 수직관체(1)의 양측단부 외측둘레면을 요홈부(8)가 되도록 절삭가공을 먼저 행한 후 상기한 본 발명의 제조방법과 동일한 공정순서도 요홈부(8)면에 시이트형수지(2a)를 감아융착시켜 가공을 하면 본원발명과 같은 동일한 작용효과를 갖는 것이다.In addition, as shown in FIG. 4, the cutting process is performed first so that the outer circumferential surface of both side ends of the vertical tube 1 becomes the groove portion 8, and the same process sequence as the manufacturing method of the present invention described above is also the groove portion 8 When the sheet-shaped resin (2a) is wound and fused to the surface, the same effect as that of the present invention is obtained.

Claims

In forming the connecting portions 2 at both ends of the tubular body 1, the sheet-shaped resin 2a which is not cured at the end of the tubular body 1 while the spiral tubular body 1 is rotated by the empty bobbin 3 is rotated. A first step of winding and fusion to a predetermined thickness, and a second step of cutting the sheet-like resin 2a wound in the first step while rotating the tubular body 1 into a predetermined connection portion 2 shape, A method of manufacturing a connection part for underground laying synthetic resin pipework as a third step of drilling a fastening hole (5) in a connection part (2) cut by two steps.

The method of manufacturing a connection part of a synthetic resin pipe for underground embedding according to claim 1, characterized in that the pipe body (1) is a straight pipe whose outer circumferential peripheral surfaces of both side ends are processed into uneven parts (7a) (7b).

The method of claim 1, wherein the tubular body (1) is a straight pipe whose outer circumferential circumferential surface of both side ends is processed into a recessed portion (8).

In the well-known thing which fixedly attached the connection part 2 to the both ends of the pipe body 1 integrally, the said connection part 2 is a sheet-type resin 2a of the same quality as the pipe body 1, and is attached to the pipe body 1 side. Connection part of underground resin laying synthetic resin pipe, characterized in that the cutting process in the wound and fused state.