KR910008128Y1 - Expansive pipes in manufacturing heat contracting tubes - Google Patents

Expansive pipes in manufacturing heat contracting tubes Download PDF

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Publication number
KR910008128Y1
KR910008128Y1 KR2019890009442U KR890009442U KR910008128Y1 KR 910008128 Y1 KR910008128 Y1 KR 910008128Y1 KR 2019890009442 U KR2019890009442 U KR 2019890009442U KR 890009442 U KR890009442 U KR 890009442U KR 910008128 Y1 KR910008128 Y1 KR 910008128Y1
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expansion
tube
cooling
heating
temperature
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KR2019890009442U
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Korean (ko)
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KR910000973U (en
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김형찬
윤주앙
권영일
최인식
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금성전선 주식회사
홍종선
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C61/00Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/02Thermal shrinking
    • B29C61/025Thermal shrinking for the production of hollow or tubular articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00Tubular articles

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

내용 없음.No content.

Description

열 수축성 튜브 제조용 팽창관Expansion tube for heat shrinkable tubing

제1도는 종래 팽창관의 정면 구성도.1 is a front configuration diagram of a conventional expansion tube.

제2도는 팽창관의 구간별 온도 선도.2 is a temperature diagram for each section of the expansion tube.

제3도는 본 고안에 따라 구성된 패창관의 결합설치상태 정면도.Figure 3 is a front view of the combined installation state of the shell pipe constructed in accordance with the present invention.

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

1 : 팽창관 2 : 예열부1: expansion tube 2: preheating unit

3 : 가열팽창부 4 : 냉각부3: heating expansion part 4: cooling part

5, 6 : 단열링5, 6: insulation ring

본 고안은 열 수축성 튜브 제조용 팽창관에 관한 것으로, 특히 예열부와 가열 팽창부 및 냉각부로 구성되는 팽창관의 구조를 개선하여 상기 각부의 온도 변화를 급격히 유지토록 하여 균일하고 우수한 품질을 열수축성 튜브를 생산할수 있도록함에 주안점을 둔것이다.The present invention relates to an expansion tube for manufacturing a heat shrinkable tube, and in particular, to improve the structure of the expansion tube consisting of a preheating unit, a heating expansion unit and a cooling unit to maintain the temperature change of each part rapidly, and to provide a uniform and excellent quality of the heat shrinkable tube. The focus is on making it possible.

열수축성튜브는 폴리 에틸렌 튜브를 가열하여 연화시킨뒤 팽창과 냉각 응고 과정을 거쳐 제조되는데, 이와 같은 제조공정은 가열 냉각 탱트내에 위치하면서 예열부(2')와 가열팽창부(3') 그리고 냉각부(4')로 구성된 팽창관(1')을 통하여 행해 진다.The heat shrinkable tube is manufactured by heating and softening the polyethylene tube, and then expanding and cooling the solidification process. The manufacturing process is located in the heating cooling tank, and the preheating unit 2 ', the heating expansion unit 3' and cooling This is done through an expansion tube 1 'consisting of a portion 4'.

여기에서 팽창과 냉각공정은 바로 연이어 작업되므로 가열부와 냉각부의 거리는 인접되어 있으며, 두 부분은 각기 열매체와 냉매에 의해 가열과 냉각이 행하여 진다.In this case, the expansion and cooling processes are continuously performed, and thus the distance between the heating section and the cooling section is adjacent, and the two sections are heated and cooled by the heat medium and the refrigerant, respectively.

그런데, 종래의 팽창장치는 제1도에서와 같이 팽창관(1')의 구성요소인 강려팽창부(3')와 냉각부(4')가 직접 연결되므로서, 두 부분의 접촉면 사이에서 왕성한 열 전달 작용이 행하여져 단열 효과가 떨어지게 되는 현상이 발생한다.However, in the conventional expansion device, as shown in FIG. 1, since the inflation portion 3 'and the cooling portion 4', which are the components of the expansion tube 1 ', are directly connected to each other, the expansion portion between the two contact surfaces is strong. The heat transfer action is carried out, the phenomenon that the heat insulation effect is reduced occurs.

이를 제2도로 도시된 구간별 온도 선도에서 나타나 있는 바와 같이 가장 이상적으로는 실선으로 표시된 바와 같은 온도 구배를 나타냄이 가장 효과적이나, 실제로 종래에는 점선과 같은 완만한 온도 구배를 나타내게 되면서 각 접촉면 사이에서 단열효과 떨어지게 된다.It is most effective to show the temperature gradient as ideally indicated by the solid line, as shown in the temperature diagram for each section shown in FIG. Insulation effect is reduced.

이와 같이 온도 구배가 완만하게 되면 예열부의 온도가 설정치이상으로 상승되면서 알맞은 연화온도 이상으로 되어 안정적인 튜브 팽창에 악영향을 주고, 냉각부의 온도가 상승되어 팽창된 튜브에 대한 급냉이 이루어지지 않아 튜브의 품질이 저하된다.If the temperature gradient is gentle, the temperature of the preheating part rises above the set value and becomes higher than the proper softening temperature, which adversely affects stable tube expansion.The temperature of the cooling part rises, so that the quenching of the expanded tube does not take place. Is lowered.

따라서, 본 고안의 목적은 상기와 같은 종래의 문제점을 감안하여 팽창관 각부의 온도변화가 급격히 유지되어 냉각 효율의 향상과 보다 안정적으로 튜브를 팽창시킬수 있도록된 팽창관을 제공함에 있는 것인바, 이를 첨부된 예시도면에 의거 상세히 설명하면 다음과 같다.Accordingly, an object of the present invention is to provide an expansion tube that is capable of expanding the tube more stably and improving the cooling efficiency by maintaining a rapid change in temperature of each part of the expansion tube in view of the conventional problems as described above. Referring to the accompanying drawings in detail as follows.

즉, 도면 제3도는 본 고안에 따라 구성된 팽창관의 결합 설치 상태 정면도로서, 팽창관(1)을 구성하고 있는 예열부(2)와 가열팽창부(3)의 접촉면, 그리고 가열팽창부(3)와 냉각부(4)의 접촉면 사이에 각각 단열링(5), (6)을 개재결합 시켰다.That is, FIG. 3 is a front view of the combined installation state of the expansion tube constructed according to the present invention, and the contact surface between the preheating portion 2 and the heating expansion portion 3 constituting the expansion tube 1, and the heating expansion portion 3 ) And the insulating ring (5), (6) was interposed between the contact surface of the cooling unit (4), respectively.

상기 단열링(5), (6)은 통상 단열 효과가 뛰어나고 마찰계수가 적은 테프론(Teflon)으로 제조되며, 그 두께는 5㎜ 내외를 가지도록 한다.The insulation rings 5 and 6 are usually made of Teflon having excellent insulation effect and low coefficient of friction, and have a thickness of about 5 mm.

이와 같이 구성된 팽창관은 가열냉각 탱크(7)내에 단일벽(8), (9)으로서 지지결합설치 되는데, 예열부(2) 하측방의 예열지역(10)과 가열팽창부(3) 하방의 가열지역(12)에는 각기 셋팅온도가 설정된 히터(11), (13)가 설치되어 해당부위를 예열내지 고온으로 가열시켜 주며, 냉각부(4)의 하측에 위치하는 냉각지역(14)에는 냉매가 위치하여 해당부위를 냉가 시켜 주는 역할을 행하게 된다.The expansion tube configured as described above is supported and installed as a single wall 8, 9 in the heating / cooling tank 7, and is provided under the preheating section 10 and the heating expansion section 3 below the preheating section 2. In the heating zone 12, heaters 11 and 13, each having a set temperature, are installed to heat the corresponding portion to preheat or high temperature. The cooling zone 14 located below the cooling section 4 has a refrigerant. Is located to serve to cool the corresponding part.

또한, 가열 냉각 탱크(7)의 전방측에는 팽창시키고져 하는 원튜브(15)가 감긴 공급롤러가 위치하고, 후방측에는 팽창튜브(16)를 감는 감개롤러가 위치하며, 팽창튜브(16)의 말단부에는 가압관(17)이 설치되어 튜브에 공기압을 가하게 된다.In addition, a feed roller on which the one-tube 15 to be inflated is located on the front side of the heating / cooling tank 7, and a reel roller on which the expansion tube 16 is wound is located on the rear side, and at the distal end of the expansion tube 16. The pressure tube 17 is installed to apply air pressure to the tube.

이상과 같이 구성된 본 고안의 작용효과를 살펴보면 다음과 같다.Looking at the effect of the present invention configured as described above are as follows.

공급롤러에 감겨져 있던 원튜브(15)는 도시되지 않은 권취장치로부터 가해지는 인장력에 의해 팽창관(1)의 예열부(2)를 지나면서 부드럽게 연화 된뒤, 보다 높은 온도를 가지며 테이퍼형 팽창안내구(3a)를 가지는 가열팽창부(3)를 지나면서 가압관(17)측에서 가해지는 소정의 공기압에 의하여 팽창된 다음, 냉각부(4)를 거치면서 급속냉가되어 내경이 확대된 열수축성 튜브로 변화된뒤 감개롤러측에 감기게 된다.The one-tube 15 wound on the feed roller softens softly while passing through the preheating portion 2 of the expansion pipe 1 by a tension force applied from a winding device (not shown), and then has a higher temperature and a tapered expansion guide. The heat-shrinkable tube which is expanded by a predetermined air pressure applied from the pressurizing tube 17 side while passing through the heat-expanding portion 3 having the portion 3a, and then rapidly cooled by passing through the cooling portion 4 to enlarge the inner diameter thereof. After being changed to, it will be wound on the reel roller side

이때, 상기 팽창관은 각 구간부 사이에 개재 설치되어 있는 단열링(5), (6)에 의해 도면 제2도에서의 일점쇄선과 같은 온도 구배를 가지며, 이와 같은 온도 구배는 가장 이상적인 온도구배(실선)와 가장 인접된 형태를 가지게 되므로서, 원튜브가 예열부(2)내를 통과 하면서 알맞고 부드럽게 연화된뒤, 가열팽창부(3)에서 대경이 증가된 형태로 팽창되며, 이어서 상대적으로 매우 낮은 온도의 냉각부(4)를 거치면서 급속 냉각되어 우수한 품질의 열 수측성 튜브가 생성되는 것이다.At this time, the expansion pipe has a temperature gradient as shown by the dashed-dotted line in FIG. 2 by the insulating rings 5 and 6 interposed between the sections, and the temperature gradient is the ideal temperature gradient. It has a shape closest to (solid line), so that the one tube softens moderately and softly as it passes through the preheating portion 2, and then expands in the form of increased diameter in the heating expansion portion 3, and then relatively Rapid cooling through the very low temperature cooling section 4 produces a good quality hydrothermal tube.

또한 제2도에서는 도시가 생략되었으나 튜브의 품질 균일화를 위하여는 원튜브를 팽창관내에 진입시키기전에 예열냉각탱크를 통과시켜 주므로서 가교공정으로 발생한 연실율을 저하시킨뒤 팽창관내로 진입시켜 주게되는바, 이에 가열온도는 연화점 온도 +5℃정도에서 가열한후 10℃이내의 냉매에 침잠 급냉시키는 방법을 사용한다.In addition, although not shown in FIG. 2, in order to uniformize the quality of the tube, the pre-cooling tank is passed before the one tube enters the expansion tube, thereby lowering the combustion rate caused by the crosslinking process and then entering the expansion tube. Bar, the heating temperature is a method of submerged quenching in a refrigerant within 10 ℃ after heating at about +5 ℃ softening point temperature.

이상과 같이 구성되고 작동되는 본 고안은, 팽창관을 구성하는 예열부와 가열팽창부 및 냉각부 사이에 단열링을 설치하여 각 구간부 사이의 온도 구배가 급격하게 유지되도록 하므로서, 팽창 상태가 균일하고 양호한 우수한 품질의 열수측성 튜브를 제조할수 있는 효과가 있다.The present invention is constructed and operated as described above, by installing an insulating ring between the preheating portion constituting the expansion tube, the heating expansion portion and the cooling portion to maintain a sharp temperature gradient between each section, uniform expansion state And it is effective to manufacture a good hydrothermal tube of good quality.

Claims (1)

예열부와 가열팽창부및 냉각부로 구성된 팽창관이 가열냉각 탱크에 단일벽으로서 지지결합 설치되는 통상의 것에 있어서, 팽창관의 예열부(2)와 가열 팽창부(3), 의 접촉면 그리고 가열 팽창부(3)와 냉각부(4)의 접촉면 사이에는 각각 급격한 온도 구배 유지를 위한 단열링(5), (6)이 개재 결합 설치됨을 특징으로하는 열 수축성 튜브 제조용 팽창관.In a conventional case in which an expansion tube composed of a preheating portion, a heating expansion portion, and a cooling portion is installed in a heating-cooling tank as a single-wall support coupling, the contact surface of the preheating portion 2 and the heating expansion portion 3 of the expansion tube, and the thermal expansion An expansion tube for producing a heat shrinkable tube, characterized in that the insulating ring (5), (6) for intermittently maintaining the temperature gradient between the portion (3) and the contact surface of the cooling unit (4) is interposed and installed.
KR2019890009442U 1989-06-30 1989-06-30 Expansive pipes in manufacturing heat contracting tubes KR910008128Y1 (en)

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KR2019890009442U KR910008128Y1 (en) 1989-06-30 1989-06-30 Expansive pipes in manufacturing heat contracting tubes

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Application Number Priority Date Filing Date Title
KR2019890009442U KR910008128Y1 (en) 1989-06-30 1989-06-30 Expansive pipes in manufacturing heat contracting tubes

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KR910000973U KR910000973U (en) 1991-01-23
KR910008128Y1 true KR910008128Y1 (en) 1991-10-12

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