KR200213356Y1 - Band Heaters for Injection Molding Machines - Google Patents
Band Heaters for Injection Molding Machines Download PDFInfo
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- KR200213356Y1 KR200213356Y1 KR2019980021613U KR19980021613U KR200213356Y1 KR 200213356 Y1 KR200213356 Y1 KR 200213356Y1 KR 2019980021613 U KR2019980021613 U KR 2019980021613U KR 19980021613 U KR19980021613 U KR 19980021613U KR 200213356 Y1 KR200213356 Y1 KR 200213356Y1
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- injection molding
- band heater
- molding machine
- sealed
- space
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
본 고안은 합성수지 사출성형기의 노즐 주위에서 노즐을 가열시켜주는 밴드히터에 관한 것으로 밴드히터의 발열온도를 높여주고 내구수명을 향상시키며 저렴한 비용으로 쉽게 제조할 수 있도록 하기 위하여서 니크롬선과 같은 전열선(26)이 관통하고 마그네시아분말과 같은 절연재(28)가 충전된체 밀봉된 마그네시아관과 같은 여러개의 전열관(22)들을 단자(30),(32)와 직렬로 연결하고, 중공부(10)와 일측개방부(12)를 가진 실린더형 케이싱(14)의 내벽체(16)와 외벽체(18)사이의 공간부(20)속에는 전열관(22)들을 내장하며, 공간부(20)의 양쪽을 중공판(24)으로 밀봉한 사출성형기용 밴드히터임.The present invention relates to a band heater that heats the nozzle around the nozzle of a plastic injection molding machine. In order to increase the heat generation temperature of the band heater, improve the durability life, and make it easy to manufacture at low cost, a heating wire such as a nichrome wire (26) The plurality of heat transfer pipes 22, such as a sealed magnesia tube filled with an insulating material 28 such as magnesia powder, are connected in series with the terminals 30 and 32, and the hollow portion 10 and one side open. Heat pipes 22 are built into the space 20 between the inner wall 16 and the outer wall 18 of the cylindrical casing 14 having the portion 12, and both sides of the space 20 are hollow plates ( Band heater for injection molding machine sealed with 24).
Description
본 고안은 합성수지 사출성형기의 노즐 주위에서 노즐을 가열시켜주는 밴드히터에 관한 것이다.The present invention relates to a band heater for heating a nozzle around a nozzle of a plastic injection molding machine.
종래의 밴드히터는 제3도에 도시된 바와 같이 단자(50),(52)가 양쪽끝에 연결되어 있는 저항리본(54)의 표, 이면을 운모로된 절연판(56),(58)으로 절연시키고, 절연판(56),(58)의 표, 이면을 아연판(60),(62)으로 감싼다음 양쪽끝에 각각 너트(64)와 조임나사(66)를 가진 조임밴드(68)로 사출성형기의 노즐 주위에 장착할 수 있도록 된 것이다.Conventional band heaters insulate the table and the back surface of the resistance ribbon 54 with terminals 50 and 52 connected to both ends, as shown in FIG. 3, by insulating plates 56 and 58 made of mica. The table and back surface of the insulating plates 56 and 58 are wrapped with zinc plates 60 and 62, and then the tightening band 68 having nuts 64 and tightening screws 66 at both ends of the injection molding machine. It can be mounted around the nozzle.
이와 같은 종래의 밴드히터는 부피가 작고 무게가 가벼운 장점은 있지만 절연성과 구조적 강도가 취약하여 발열온도가 약 250∼300℃정도에 불과한 것이었기 때문에 그 이상의 온도가 요구되는 사출성형기에는 사용할 수 없었고, 사용도중 사출성형기의 노즐쪽에서 유출되기 마련인 용융수지가 밴드히터의 내부로 침투하게되어서 자주 새것으로 교체해주어야 했었으며, 테두리를 밀폐시켜주기 위해서는 고가의 특수한 전용제조설비가 요구되었었기 때문에 밴드히터의 제조단가가 높아질 수 밖에 없는 등의 문제점이 있었다.Such conventional band heaters have the advantages of small volume and light weight, but because of their poor insulation and structural strength, the exothermic temperature was only about 250 to 300 ° C., so they could not be used in an injection molding machine requiring a higher temperature. The band heater was manufactured because expensive molten resin had to be frequently replaced with new ones because the molten resin, which had been leaked from the nozzle side of the injection molding machine, penetrated into the inside of the band heater. There was a problem that the unit price must be higher.
본 고안은 이와 같은 종래기술의 제반문제점을 해결한 것인 바, 본 고안의 목적은 절연성과 구조적 강도가 우수하여 500℃ 정도의 고온으로도 발열함으로서 사용범위가 넓고 내구수명이 길며 구조가 비교적 간단하여 저렴한 비용으로 용이하게 제조할 수 있는 사출성형기용 밴드히터를 제공하는데 있다.The present invention solves all the problems of the prior art, the purpose of the present invention is excellent insulation and structural strength to generate heat even at a high temperature of about 500 ℃ wide use range, long service life and relatively simple structure The present invention provides a band heater for an injection molding machine that can be easily manufactured at low cost.
제1도는 본 고안에 의한 밴드히터의 사시도.1 is a perspective view of a band heater according to the present invention.
제2도는 제1도에서 보인 전열관들의 전개도.2 is an exploded view of the heat pipes shown in FIG.
제3도는 종래 밴드히터의 사시도.3 is a perspective view of a conventional band heater.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 중공부 12 : 개방부10 hollow part 12 open part
14 : 실린더형케이싱 16 : 내벽체14 cylindrical casing 16: inner wall
18 : 외벽체 20 : 공간부18: outer wall 20: space
22 : 전열관 24 : 중공판22: heat pipe 24: hollow plate
26 : 전열선 28 : 절연재26: heating wire 28: insulating material
30,32 : 단자30,32: terminal
본 고안은 제1도와 제2도에 예시한 바와 같이 중앙에는 중공부(10)가 형성되어 있고 일측에는 개방부(12)를 가진 실린더형케이싱(14)의 내벽체(16)와 외벽체(18) 사이에 있는 공간부(20)에 여러개의 전열관(22)들을 내장하고, 공간부(20)의 양쪽에 중공판(24)을 용접하여 공간부(20)를 밀폐시켜서 된 것이다.In the present invention, as illustrated in FIGS. 1 and 2, the inner wall body 16 and the outer wall body 18 of the cylindrical casing 14 having the hollow part 10 and the opening part 12 are formed at one side thereof. The plurality of heat pipes 22 are embedded in the space 20 between the spaces, and the hollow plate 24 is welded to both sides of the space 20 to seal the space 20.
전열관(22)은 절연성이 우수한 마그네시아관으로 만들어진 것으로서 전열관(22) 속에는 니크롬선과 같은 전열선(26)과, 절연성이 우수한 마그네시아분말과 같은 절연재(28)가 내장된 상태로 밀봉되어 있고, 전열관(22)들은 실린더형케이싱(14)의 바깥쪽으로 연장된 단자(30),(32)와 직렬로 연결되어 있다.The heat transfer tube 22 is made of a magnesia tube having excellent insulation, and is sealed in the heat transfer tube 22 in a state in which a heating wire 26 such as nichrome wire and an insulating material 28 such as magnesia powder having excellent insulation are embedded. ) Are connected in series with the terminals 30, 32 extending outward of the cylindrical casing 14.
실린더형케이싱(14)의 개방부(12) 쪽에는 플랜지(34),(36)가 형성되어 있고, 이 플랜지(34),(36)에는 각각 볼트관통구멍(38)이 형성되어 있어서 중공부(10) 속에 사출성형기의 노즐이 위치되도록 한 다음 볼트(40)와 너트(42)를 체결하여서 실린더형케이싱(14)을 노즐 주위에 고정시켜 줄 수 있도록 되어 있다.Flange 34, 36 is formed in the opening part 12 side of the cylindrical casing 14, The bolt part 34 is formed in the flange 34, 36, respectively, and a hollow part is formed. 10, the nozzle of the injection molding machine is positioned, and then the bolt 40 and the nut 42 are fastened to fix the cylindrical casing 14 around the nozzle.
이와 같이 구성된 본 고안은 전열선(26)이 절연성이 우수한 마그네시아관으로 이루어진 전열관(22) 속에 충전된 절연성이 우수한 마그네시아분말과 같은 절연재(28)로 둘러쌓여진 것이기 때문에 절연과 발열특성이 우수하여서 단자(30),(32)를 통해서 전열선(26)에 전류를 공급하면 전열관(22)이 500℃정도의 고온으로 발열된다.The present invention configured as described above has a good insulation and heat generation characteristics because the heating wire 26 is surrounded by an insulating material 28 such as magnesia powder having excellent insulation filled in a heat transfer tube 22 made of a good insulation tube. When the electric current is supplied to the heating wire 26 through 30 and 32, the heating tube 22 generates heat at a high temperature of about 500 ° C.
그리고 본 고안은 실린더형케이싱(14)의 내벽체(16)와 외벽체(18) 사이에 있는 공간부(20)속에 전열관(22)들을 내장하고 공간부(20)의 양쪽에 중공판(24)을 용접하여 전열관(22)들이 내장된 공간부(20)를 견고하게 밀폐시켜 주도록 된 것이기 때문에 사용도중 사출성형기의 노즐쪽에서 유출되기 마련인 용융수지가 밴드히터의 내부로 침투되지 않도록 해준다.The present invention incorporates the heat transfer tubes 22 in the space 20 between the inner wall 16 and the outer wall 18 of the cylindrical casing 14 and the hollow plate 24 on both sides of the space 20. Since the heat pipes 22 are to be tightly sealed by welding, the molten resin, which is intended to leak from the nozzle side of the injection molding machine, does not penetrate into the inside of the band heater during use.
본 고안은 절연과 발열특성이 우수하여서 500℃ 정도의 고온으로 발열되는 것이므로 발열온도가 250 ∼ 300℃정도인 종래것에 비하여 사용범위가 넓고, 특히 절연성과 구조적 강도가 우수하여 지속적인 발열이 가능하므로 사출성형기의 가동율을 높여 줄 수 있으며, 구득이 용이하고, 가격이 저렴한 니크롬선과 같은 전열선(26)을 발열체로 하는 것이어서 고가인 저항리본을 발열체로 하는 종래것에 비하여 구조가 비교적 간단할 뿐만 아니라 고가의 특수한 전용제조 설비를 사용하지 않는 것이어서 저렴한 비용으로 쉽게 제조할 수 있는 등의 장점이 있다.The present invention is excellent in insulation and heat generation characteristics, so that it generates heat at a high temperature of about 500 ° C, so the use range is wider than that of the conventional heat generation temperature of about 250 to 300 ° C. It is possible to increase the operation rate of the molding machine, and the heating element 26 such as nichrome wire, which is easy to obtain and inexpensive, is used as a heating element, and thus, the structure is relatively simple and expensive and expensive. There is an advantage that it can be easily manufactured at low cost since it does not use a dedicated manufacturing equipment.
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KR2019980021613U KR200213356Y1 (en) | 1998-11-07 | 1998-11-07 | Band Heaters for Injection Molding Machines |
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KR2019980021613U KR200213356Y1 (en) | 1998-11-07 | 1998-11-07 | Band Heaters for Injection Molding Machines |
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KR20000009587U KR20000009587U (en) | 2000-06-05 |
KR200213356Y1 true KR200213356Y1 (en) | 2001-03-02 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101401459B1 (en) | 2012-05-31 | 2014-05-30 | (주)혜원전기 | Band heater and manufacturing method of band heater |
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1998
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101401459B1 (en) | 2012-05-31 | 2014-05-30 | (주)혜원전기 | Band heater and manufacturing method of band heater |
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