KR910002364B1 - Method and apparatus for production of pipe - Google Patents

Method and apparatus for production of pipe Download PDF

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Publication number
KR910002364B1
KR910002364B1 KR1019890001007A KR890001007A KR910002364B1 KR 910002364 B1 KR910002364 B1 KR 910002364B1 KR 1019890001007 A KR1019890001007 A KR 1019890001007A KR 890001007 A KR890001007 A KR 890001007A KR 910002364 B1 KR910002364 B1 KR 910002364B1
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South Korea
Prior art keywords
ram
parallel
release tube
branch pipe
polymer release
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KR1019890001007A
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Korean (ko)
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KR900011568A (en
Inventor
최종철
윤주앙
송영규
김준선
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금성전선 주식회사
문박
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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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/22—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of tubes
    • B29C55/26—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of tubes biaxial
    • 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
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels

Abstract

The method extends a preformed polymer specials tube by inserting extending bars into it. The moulding ram (1) includes a driving means (3) moving the ram (1) with a moulding ram-supporting plate (2). The stretching bars (4) are arranged on four sides to be porallel to the ram (1), and driven by driving means (5).

Description

고분자 이형관 제조방법 및 그 제조장치Polymer release tube manufacturing method and manufacturing apparatus

제1도는 본 발명에 의한 장치의 사시도.1 is a perspective view of a device according to the invention.

제2도는 본 발명에 의한 제조공정도로서 (a)는 비평행축 이형관을 확관시키기 전의 상태도, (b)는 확관시킨 상태도, (c)는 성형램의 삽입 상태도.2 is a manufacturing process drawing according to the present invention, (a) is a state before expanding a non-parallel shaft release tube, (b) is a state expanded, and (c) is a state of insertion of a forming ram.

제3도는 종래 고분자 이형관 제조장치의 사시도.3 is a perspective view of a conventional polymer release tube manufacturing apparatus.

제4도는 일반적인 이형관의 예시도로서 (a)는 평행축 이형관의 사시도, (b)는 비평행축 이형관의 사시도, (c)는 엔드 캡의 사시도.4 is an illustration of a general release tube, (a) is a perspective view of a parallel axis release tube, (b) is a perspective view of a non-parallel axis release tube, (c) is a perspective view of the end cap.

* 도면의 주요부분에 대한 부호 설명* Explanation of symbols on the main parts of the drawings

1 : 성형램 2 : 성형램 지지판1 shaping ram 2 shaping ram support plate

3 : 성형램 전후직선 구동수단 4 : 확관바3: linear drive means before and after forming ram 4: expansion pipe

5 : 확관바 직선 구동수단 30 : 평행축 고분자 이형관5: Straight pipe bar driving means 30: Parallel shaft polymer release tube

40 : 비평행축 고분자 이형관 50 : 엔드캡.40: non-parallel axial polymer release tube 50: end cap.

본 발명은 열회복성 고분자 이형관(異形管) 제조 방법 및 그 제조장치에 관한 것으로, 특히 평행축 고분자 이형관은 물론 비평행축 고분자 이형관 및 엔드캡의 제조에 적합하도록 한 고분자 이형관 제조방법 및 그 제조장치에 관한 것이다.TECHNICAL FIELD The present invention relates to a method for manufacturing a heat recoverable polymer release tube and a device for manufacturing the same, and in particular, a method for manufacturing a polymer release tube and an apparatus for manufacturing the same, for preparing a parallel axis polymer release tube and a non-parallel axis polymer release tube and an end cap It is about.

일반적으로 열회복성 고분자 이형관은 제4도(a)(b)(c)에 도시한 바와 같이 대경(大徑)의 몸체부(31)와 소경(小徑)의 분지관부(32)가 평행인 평행축 고분자 이형관(30)과, 몸체부(41)와 분지관부(42)가 비평행인 비평행축 고분자 이형관(40) 및 한끝(51)이 막힌 엔드캡(50)등이 있다.Generally, as shown in FIG. 4 (a) (b) (c), the heat recoverable polymer release tube has a large diameter body portion 31 and a small diameter branch tube portion 32 parallel to each other. The parallel-axis polymer release tube 30, the non-parallel-axis polymer release tube 40 in which the body part 41 and the branch pipe part 42 are non-parallel, and the end cap 50 by which the one end 51 was blocked are mentioned.

이러한 열회복성 고분자 이형관은 최종 규격보다 작은 직경으로 성형한 반제품을 학관시켜서 소정 규격의 완제품을 얻게 되는 것이다.Such a heat recoverable polymer release tube is to study a semi-finished product molded into a diameter smaller than the final specification to obtain a finished product of a predetermined standard.

종래 이러한 열회복성 고분자 이형관들은 제조하는 장치로서는 제3도에 도시한 바와같이 한쌍의 관통공(12)을 보유하는 관체(11)에 관통공(12)과 등심상의 원주방향 등간격으로 배열되어 첨예형으로 접속된 리드선(12)을 고정 설치하고, 상기 관통공(12)을 통해 리드선(13)내로 삽입되는 성형램(14)을 구비한 것으로, 제4도(a)의 평행축 이형관(30)에 적합하게 되어 있다.Conventionally, such heat recoverable polymer release tubes are arranged in the tubular body 11 having a pair of through holes 12 at equal circumferential circumferential intervals in the tubular body 11 as shown in FIG. 3. It is provided with a shaping ram 14 fixedly installed and inserted into the lead wire 13 through the through hole 12. The parallel shaft release tube of FIG. 30).

이러한 종래의 장치에서는, 평행축 고분자 이형관(30)을 상기 리드선(13)에 끼워서 그 분지관부(32)가 벌어지게 한다음, 관통공(12)을 통해서 성형램(14)을 리드선(13)이 삽입된 분지관부[32)를 확관 성형함으로써 소정 규격(직경)의 고분자 이형관을 제조하게 되는 것이다.In such a conventional apparatus, the parallel shaft polymer release tube 30 is inserted into the lead wire 13 so that the branch pipe part 32 is opened, and then the shaping ram 14 is connected to the lead wire 13 through the through hole 12. By expanding and molding the inserted branch pipe part 32, a polymer release pipe of a predetermined standard (diameter) is produced.

그런데 이러한 종래의 장치에서는 제4도(a)에 도시한 평행축 고분자 이형관(30)에 대하여는 적합하다고 할 수 있으나, 제4도(b) 및 (c)에 도시한 비평행선 고분자 이형관(40)과 엔드캡(50)의 제조에는 적용하기 곤란한 것이었다.By the way, in the conventional apparatus, it can be said to be suitable for the parallel-axis polymer release tube 30 shown in Figure 4 (a), but the non-parallel polymer release tube 40 shown in Figures 4 (b) and (c) It was difficult to apply to the manufacture of the end cap 50.

즉, 종래 장치는, 리드선(13)이 평행으로 고정 설치되어 있기 때문에 분지관부(42)가 평행하지 않은 비평행축 고분자 이형관(40)을 제조함에 있어서 리드선(13)을 분지관부(13)에 삽입 통과시키기가 매우 어렵게되며, 또한 자동화가 거의 불가능하다.That is, in the conventional apparatus, since the lead wire 13 is fixedly installed in parallel, the lead wire 13 is inserted into the branch pipe part 13 in manufacturing the non-parallel axial polymer release tube 40 in which the branch pipe part 42 is not parallel. It is very difficult to pass, and also almost impossible to automate.

또한 리드선(13)을 유연성이 좋은 재질로 하여 비평행축인 분지관부(42)를 찾아 휘어지면서 들어갈 수 있도록 한다하더라도 리드선(13)이 분지관부(42)에 삽입되는 도중에 걸리게 되는 경우가 많이 발생된다.In addition, even if the lead wire 13 is made of a flexible material so that the branch pipe portion 42, which is a non-parallel axis, can be bent and entered, the lead wire 13 is often caught while being inserted into the branch pipe portion 42. .

따라서 종래 장치는 비평행축 고분자 이형관(40)의 제조에 적용하기는 매우 곤란하며, 특히 제조라인을 자동화 하는데는 거의 적용 불가능하다.Therefore, the conventional apparatus is very difficult to apply to the production of the non-parallel axial polymer release tube 40, in particular, it is hardly applicable to automate the production line.

또한 종래의 장치는 리드선(13)을 열회복성 제품(고분자 이형관등)에 삽입 관통해야 하는 것이므로 제4도(c)와 같이 한끝(51)이 막힌 엔드캡(50)의 제조에도 적응할 수 없는 것이다.In addition, in the conventional apparatus, since the lead wire 13 must be inserted into a heat recovery product (polymer release tube, etc.), it is not applicable to the manufacture of the end cap 50 with one end 51 blocked as shown in FIG. will be.

이와같이 종래 장치는 평행축 고분자 이형관에만 적용할 수 있을뿐 비평행축 고분자 이형관(40)가 엔드캡(50)에는 적용하기 곤란하며 제조라인의 자동화가 거의 불가능하다고 하는 문제점이 있었다.As described above, the conventional apparatus can be applied only to the parallel axis polymer release tube, but the non-parallel axis polymer release tube 40 is difficult to apply to the end cap 50, and there is a problem that automation of the manufacturing line is almost impossible.

따라서 본 발명의 목적은, 몸체와 분지관부가 평행인 평행축 고분자 이형관은 물론 몸체와 분지관부가 평행하지 않은 비평행축 고분자 이형관의 제조에도 적용할 수 있으며, 제조라인의 자동화에도 기여할 수 있도록한 고분자 이형관 제조 방법 및 그 제조장치를 제공하려는 것이다.Therefore, an object of the present invention is applicable to the production of non-parallel polymer release tubes in which the body and branch pipes are parallel, as well as non-parallel polymer release tubes in which the body and branch pipes are not parallel, and also contribute to the automation of the manufacturing line. It is to provide a method for producing a release tube and a manufacturing apparatus thereof.

이러한 본 발명의 목적은 고분자 이형관 반제품의 몸체내에 몸체와 평행한 상하좌우의 확관바를 삽입하여 확관시켜 분지관부가 몸체와 평행축상으로 되게 한 다음 성형램을 분지관부에 삽입하여 확관 성형하는 고분자 이형관 제조방법에 의하여 달성된다.The object of the present invention is to insert the expansion tube of the upper, lower, left and right parallel to the body in the body of the semi-finished polymer semi-finished product so that the branch pipe is made parallel to the body and then the forming ram is inserted into the branch pipe to manufacture the expanded mold tube By the method.

또한 이를 구현하기 위한 고분자 이형관 제조장치는, 성형램 지지판을 통하여 성형램 직선 구동수단에 연동연결된 성형램을 구비하는 것에 있어서, 상기 성형램의 전방에는 상기 성형램과 평행한 상하좌우의 확관바를 배치하여 각각 상하좌우 확관바 직선 구동 수단에 연동연결하여서 된 것이다.In addition, the apparatus for manufacturing a polymer release tube for implementing the same includes a forming ram interlocked with a forming ram linear driving means through a forming ram support plate, and the expansion bars of upper, lower, left and right parallel to the forming ram are disposed in front of the forming ram. They are connected to each other up and down, left and right expansion bar linear drive means.

이하 본 발명에 의한 고분자 이형관 제조방법 및 그 제조장치를 제1도 및 제2도에 도시한 실시예에 따라서 상세히 설명한다. 제1도에서 (1)은 성형램으로서 성형램 지지판(2)의 전면에 고정 부착되어 있으며 성형판 지지판(2)의 배면에 연결설치된 성형램 전후 직선 구동수단(3)에 의하여 전후 직선 운동하게 되는것이다.Hereinafter, a method for manufacturing a polymer release tube and a manufacturing apparatus according to the present invention will be described in detail according to the embodiments shown in FIGS. 1 and 2. In FIG. 1, reference numeral 1 denotes a forming ram, which is fixedly attached to the front surface of the forming ram supporting plate 2 and linearly moved back and forth by the forming ram front and rear linear driving means 3 connected to the rear surface of the forming plate supporting plate 2. That's it.

상기 성형램(1)은 첨예형으로 형성하여 그 선단의 원추면(1')이 고분자 이형관의 분지관부에 삽입될때 가이드 역활을 하도록 한다.The shaping ram 1 is formed in a sharp shape so as to act as a guide when the conical surface 1 ′ of the tip is inserted into the branch pipe of the polymer release tube.

상기 성형램(1)의 전방에는 성형램(1)과 평행한 상하 좌우 4개 확관바 (4)를 배치하여 이를 각각 상하 좌우 확관바 직선 구동수단(5)에 연동연결한다.In front of the forming ram (1) is arranged up and down four right and left expansion bar (4) parallel to the forming ram (1) and connects it to the linear drive means (5), respectively.

상기 성형램 전후 직선 구동수단(3)과 확관바 직선 구동수단(5)은 예컨대 유압 또는 공압실린더등을 이용하는 유압 또는 공압식이나 기타 기계식 장치를 사용하며, 상기 확관바 직선 구동수단(5)과 확관바(4)는 연결봉(6)으로 연결하는 것이다.The front and rear linear drive means (3) and expansion bar linear drive means (5) using a hydraulic or pneumatic or other mechanical device using, for example, a hydraulic or pneumatic cylinder, and the expansion bar linear drive means (5) Tube bar (4) is to connect with a connecting rod (6).

제2도는 본 발명에 의한 고분자 이형관 제조예를 도시하는 것으로 비평행축 고분자 이형관(40)을 제조하는 과정을 도시하는 것이다.FIG. 2 shows an example of manufacturing a polymer release tube 40 according to the present invention and shows a process of manufacturing a non-parallel axial polymer release tube 40.

제2도(a)는 최종 규격보다 작은 직경으로 성형된 비평행 고분자 이형관 반제품(40')의 몸체(41')에 확관바(4)를 오무려서 삽입한 상태이다.FIG. 2 (a) is a state in which the expansion bar 4 is squeezed into the body 41 'of the non-parallel polymer release tube semifinished product 40' molded to a diameter smaller than the final specification.

이상태에서 상기 확관바 직선 구동수단(5)를 동작시켜 상하 좌우 학관바(4)를 벌림으로써 제2도(b)와 같이 반제품(40')의 몸체(41')의 직경을 확대시킨다.In this state, the expansion bar linear driving means 5 is operated to open up, down, left, and right tube pipes 4 to enlarge the diameter of the body 41 'of the semifinished product 40' as shown in FIG.

학관바(4)는 반제품(40')의 비평행이었던 분지관부(42')가 몸체(41')와 평행으로 될때까지 구동시킨다.The tube bar 4 is driven until the branch pipe portion 42 'that is the nonparallel of the semifinished product 40' is parallel to the body 41 '.

여기서 상기 분지관부(42')가 몸체(41')와 완전히 평행하게 되도록 하는 것이 좋음은 물론이나 어느정도 평행하면 후술하는 성형램(1)의 삽입 과정에 영향을 주지는 않는다.Here, it is preferable that the branch pipe part 42 'is completely parallel to the body 41', but if it is somewhat parallel, it does not affect the insertion process of the forming ram 1 to be described later.

제2도(b)와 같이 분지관부(42')가 몸체(41')와 평행하게 되면 성형램 전후 직선 구동수단(3)을 구동시켜 지지판(2)에 설치된 성형램(1)을 전진시킨다.As shown in FIG. 2 (b), when the branch pipe part 42 'is parallel to the body 41', the forming ram 1 installed on the supporting plate 2 is advanced by driving the linear driving means 3 before and after the forming ram. .

성형램(1)은 확관바(4)에 의해 확장된 몸체(41')를 통해 분지관부(42')에 삽입되며, 이때 성형램(1)의 선단 원추면(1')에 의해 성형램(1)의 중심이 분지관부(42')와 조심(調心)되어 정확히 삽입된다.The shaping ram 1 is inserted into the branch pipe section 42 'through a body 41' extended by the expansion pipe 4, whereby the shaping ram (1) is formed by the tip conical surface 1 'of the shaping ram 1; The center of 1) is carefully inserted into the branch pipe part 42 '.

제2도(c)와 같이 성형램(1)의 삽입이 완료되면, 분지관부(42')가 확관되며 확관바(4)를 인출하면 남아있던 자체 열에 의해 수축되어 성형램(l)에 의하여 소정 직경을 갖는 분지관부(42)로 된 고분자 이형관(40)이 제조되는 것이다.When insertion of the forming ram 1 is completed as shown in FIG. 2 (c), the branch pipe part 42 ′ is expanded and when the extension bar 4 is pulled out, it is contracted by its own heat remaining and is formed by the forming ram 1. The polymer release tube 40 made of the branch pipe part 42 having a predetermined diameter is manufactured.

이후에는 냉각시키고 성형램(1)를 후퇴시켜 이형관(40)의 분지관부(42)에서 인출하면 몸체(41)와 평행으로 되어 있던 분지관부(42)는 소정각도를 갖는 비평행 상태로 복귀되어 결국 비평행축 고분자 이형관(40)을 얻게 되는 것이다.Thereafter, after cooling, the forming ram 1 is retracted and drawn out from the branch pipe portion 42 of the release tube 40, the branch pipe portion 42, which is parallel to the body 41, returns to a non-parallel state having a predetermined angle. As a result, a non-parallel axial polymer release tube 40 is obtained.

또한 본 발명에서는 상술한 비평행 고분자 이형관(40)에만 적용되는 것은 아니며 한끝(51)이 막힌 엔트캡(50)의 제조에도 적용할 수 있는 것이다.In addition, the present invention is not only applied to the non-parallel polymer release tube 40 described above, but also applicable to the manufacture of the end cap 50 with one end 51 blocked.

즉, 이 경우에는 상기 성형램(1)의 선단부를 원추면으로 하지 않고 단면형으로 형성하면 되며, 기타의 구성은 서상한 실시예에서와 동일하게 되는 것이다.That is, in this case, the front end of the shaping ram 1 may be formed in a cross-sectional shape instead of a conical surface, and the other configurations are the same as in the above-described embodiment.

이상과 같이 본 발명에 의하며 확관바에 의해 비평행축 고분자 이형관의 몸체를 벌려서 분지관부를 평행하게 한 다음 성형램을 분지관부에 삽입하는 것이므로 평행축 고분자 이형관은 물론 비평행축 고분자 이형관의 제조에도 적합하게 될 뿐만 아니라 한끝이 막힌 엔드캡의 제조에도 적용할 수 있는 것이다.According to the present invention as described above, by opening the body of the non-parallel axial polymer release tube by the expansion pipe to parallel the branch pipe portion and then inserting the forming ram into the branch pipe, so it will be suitable for the production of parallel axial polymer release tube as well as non-parallel axial polymer release tube. In addition, it can be applied to the manufacture of the end cap blocked.

또한 본 발명에 의하면 성형램의 분지관부에의 삽입이 매우 원활하게 되므로 제조설비의 자동화에도 기여할 수 있는 것이다.In addition, according to the present invention, since the insertion of the forming ram into the branch pipe part is very smooth, it can contribute to the automation of the manufacturing equipment.

Claims (2)

소정 규격보다 소경의 몸체와 분지관부로 성형된 고분자 이형관 반제품을 성형램으로 확관시킴에 있어서, 상기 반제품의 몸체내에 그와 평행한 상하좌우의 확관바를 삽입하여 확관시킴으로써 상기 분지관부가 몸체와 평행축상으로 되게 한 다음 성형램을 분지관부에 삽입하여 확관함을 특징으로 하는 고분자 이형관 제조방법.In expanding the semi-finished polymer mold tube semi-finished product formed into a body of a smaller diameter and a branch pipe part than a predetermined standard with a molding ram, the branch pipe part is parallel to the body by inserting and expanding the upper, lower, left and right extension bars parallel to the semi-finished product. Method for producing a polymer release tube, characterized in that the expansion by inserting the forming ram into the branch pipe portion. 성형램 지지판(2)을 통하여 성형램 전후 직선 구동수단(3)에 연동연결한 성형램(1)을 구비하는 것에 있어서, 상기 성형램(1)의 전방에는 성형램(1)과 평행한 상하 좌우의 확관바(4)를 배치하여 각각 상하 좌우 확관바 직선 구동수단(5)에 연동연결하여서 됨을 특징으로 하는 고분자 이형관 그 제조장치.A shaping ram 1 interlocked with the shaping ram front and back linear drive means 3 via a shaping ram support plate 2, wherein the shaping ram 1 is disposed in front of and below the shaping ram 1 in parallel with the shaping ram 1; A device for manufacturing a polymer release tube, characterized in that the left and right expansion pipe (4) is arranged to be connected to the vertical drive means (5), respectively.
KR1019890001007A 1989-01-30 1989-01-30 Method and apparatus for production of pipe KR910002364B1 (en)

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