KR950006828B1

KR950006828B1 - Package method of ring shaped products using a different heat shrinkage rate film

Info

Publication number: KR950006828B1
Application number: KR1019900022405A
Authority: KR
Inventors: 민동판; 정만규; 윤여활
Original assignee: 코스모스산업주식회사; 박태영
Priority date: 1990-12-29
Filing date: 1990-12-29
Publication date: 1995-06-23
Also published as: KR920011868A

Abstract

A method of wrapping an annular article (1) such as a hose roll, a wire roll, etc. proceeds in turn with wrapping a heat-shrinkable material (2) around the article so that it overlaps the sides, joining and cutting the wrapped material along an axial direction with a heat-fusing process so as to form a tubular wrapper (4), pushing the tubular wrapper into the inner periphery of the article as well as holding the both ends of the wrapper, and then joining and cutting the inner extending portions of the wrapper in a ring shape along the inner periphery of the article. Pref. the heat-shrinkable wrapping material is woven with the weft and the warp of flat yarns having a different heat-shrinkage rate. The appts. for realizing the above method includes a flat heat-fusing member (3, 3a) and a couple of heat-fusing rings (6, 6a) having a smaller diam. compared with the inner diam. of the article.

Description

Packing method of annular product using synthetic weaving fabric woven with weft and warp yarn with different heat shrinkage rate

제1a도는 본 발명의 제1공정의 실시상태도이고,1A is an exemplary embodiment of the first step of the present invention.

제1b도는 제1공정이 끝난 상태도이다.FIG. 1B is a state diagram where the first step is completed.

제2a도는 본 발명의 제2공정의 실시상태도이고,Figure 2a is an embodiment of the second process of the present invention,

제2b도는 제2공정이 끝나고 열수축이 되지 않은 상태의 포장된 환형제품의 측면도이다.FIG. 2b is a side view of the packaged annular product in a state in which the heat shrinkage is not completed after the second process.

제3도는 본 발명의 포장된 환형제품을 열수축시키는 실시예도이다.3 is an exemplary embodiment of heat shrinking the packaged annular product of the present invention.

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

1 : 환형제품 2 : 합성수지직포포장재1: annular product 2: synthetic resin packaging

3,3a : 열융착기 4 : 합성수지직포관상체3,3a: heat fusion machine 4: synthetic resin woven tubular body

5,5a : 집속구 6,6a : 환형열융착기5,5a: Focusing port 6,6a: Annular heat welding machine

7,7a : 스프링 9,9a : 유압기7,7a: spring 9,9a: hydraulic

10 : 환형구 11 : 포장된환형제품10: annular sphere 11: packaged annular product

12 : 열원체 13 : 콘베어벨트12: heat source 13: conveyor belt

본 발명은 환형제품, 예를들어 권취된 온돌파이프 및 호스, 롤상의 철판 및 철사, 통신 케이블, 전선, 로우프, 타이어등과 같은 도너스 형상의 제품을 열수축율이 상이한 위사 및 경사로 직포로서 포장하는 방법에 관한 것이다.The present invention is a method of packaging an annular product, such as a wound ondol pipe and hose, a rolled iron plate and wire, a communication cable, an electric wire, a rope, a tire, and the like, as a weft and warp woven fabric having different heat shrinkage rates. It is about.

종래의 환형제품의 포장은 고밀도 또는 저밀도 폴리에티렌, 염화비닐수지, 폴리프로피렌등의 테이프상 필름으로 환형제품의 환형축을 권취하거나 전체를 덮어씌워 일괄포장하는 방법을 사용하여 왔으나, 전자의 경우는 수작업형태의 권취작업으로 상당한 시간이 소요되고 방수가 되지 않을 뿐만 아니라 외기차단이 되지 않아 제품의 변질이 오게 되며, 후자의 경우에는 환형제품의 환형축을 중심으로 하는 결속력이 없어 권취된 제품의 해체가 일어나거나 포장재 내부에서 제품이 유동하거나 흐터저지는 문제점이 있었다.Conventional packaging of cyclic products has been using a method of wrapping the annular shaft of a cyclic product with a tape-like film of high density or low density polystyrene, vinyl chloride resin, polypropylene, or wrapping the entire circumference. Due to the manual winding work, it takes a considerable time and is not waterproof, but also does not block the outside, resulting in the deterioration of the product. In the latter case, there is no binding force around the annular shaft of the annular product. Occurred or there was a problem that the product flows or scatters inside the packaging material.

그밖에도 종래의 환형제품 포장재용 필름은 파열강도, 인장강도, 충격강도등의 물리적 특성이 약하여 쉽게 파손되거나 파열되는 경우가 많았다.In addition, the conventional annular product packaging film has a weak physical properties such as burst strength, tensile strength, impact strength was often broken or ruptured easily.

본 발명자는 상술한 환형제품의 포장에 있어서 적합한 포장재와 새로운 포장방법을 개발연구하여 오던중 열수축이 다른 위사 및 경사로 직조된 직포포장재를 고안하게 되었으며, 이와같은 포장재로 환형제품을 포장하는 새로운 방법을 얻을 수 있었다.The inventors of the present invention have developed a suitable packaging material and a new packaging method for packaging the annular product described above. The inventors of the present invention have devised a woven packaging material that is woven with warp and warp yarns having different heat shrinkage. Could get

본 방법에 사용되는 포장재는 열수축율이 다른 위사와 경사로 직조된 직포에 합성수지를 라미네이팅하거나 박막필름을 적층한 것이며, 여기에서 위사 및 경사를 구성하는 재질은 염화비닐수지, 염화비니리덴수지, 폴리프로피렌수지, 폴리에치렌수지등의 폴리올레핀계의 수지등이고, 또 위사와 경사는 상술한 합성수지필름을 일축연신 또는 경우에 따라서는 이축연신한 필름을 연신한 방향으로 세폭으로 절단한 세폭필름테이프가 되거나 연산한 프렛트얀이 될 수 있다.The packaging material used in this method is a laminate of synthetic resin or laminated thin film on a woven fabric of warp yarns and warp yarns having different thermal shrinkage rates. Polyolefin-based resins such as pyrene resins and polyethylene resins, and the weft and warp yarns are narrow film tapes obtained by uniaxially stretching the above-described synthetic resin film or, in some cases, biaxially stretched films in a narrow direction. It can be a computed fret yarn.

상술한 포장재로서 환형제품을 포장하는 방법은 아래와 같은 단계적인 공정을 거치므로서 열수축된 포장 환형제품을 얻게 된다.The packaging method of the annular product as the above-described packaging material is obtained through the step-wise process as follows to obtain a heat-shrink wrapped annular product.

제1단계 공정으로서 제1도와 같이 합성수지직포 포장재로서 환형제품의 외면을 둘러싸 밀착시킨 다음 포장재의 양단을 열융착접합함과 동시에 절단하게 된다.As a first step, as shown in FIG. 1, the synthetic resin woven packaging material surrounds the outer surface of the annular product to be in close contact with each other, and then the both ends of the packaging material are thermally fused and simultaneously cut.

제2단계 공정으로서, 제2도와 같이 제1공정에서 얻어진 개구된 합성수지직포관상체의 양단을 집속하고 외측으로 약간의 인발력을 작용시키면서 환형제품의 환형구보다 직경이 약간 적은 한쌍의 환상열융착기가 양측에서 환형구를 향하여, 이동하여 맞닿게 되면 환형구의 열융착과 동시에 합성수지포장재의 일부가 절단되어 제거되면서 열수축되지 않은 상태의 포장된 환형제품을 얻게 된다.As a second step, as shown in FIG. 2, a pair of annular heat welding machines having a smaller diameter than the annular sphere of the annular product while focusing both ends of the opened synthetic resin tubular body obtained in the first step and exerting a slight pull force to the outside When the abutment sphere is moved toward and contacted with at the same time the heat sealing of the annular sphere at the same time a portion of the synthetic resin packaging material is cut and removed to obtain a packaged annular product in a non-shrinkable state.

제3단계 공정으로서, 제3도와 같이 열수축되지 않은 상태의 포장된 환형제품을 50℃-200℃의 온도범위를 유지하는 열터널을 10-60초간 통과시키므로서 외부의 포장재가 수축하면서 내용물인 환형제품에 밀착하게 되고 이로서 열수축이 완료된 포장환형제품이 얻어진다. 본 공정에서 온도범위, 처리시간등은 위사 및 경사로 사용되어지는 합성수지의 재질에 따라 그 범위가 좌우된다.As the third step process, the outer packaging material shrinks while the packaged annular product, which is not heat-shrinked, is passed through a heat tunnel maintaining a temperature range of 50 ° C to 200 ° C for 10 to 60 seconds as shown in FIG. It comes in close contact with the product, and thus a packaged annular product having completed heat shrinkage is obtained. In this process, the temperature range and treatment time depend on the material of synthetic resin used for weft and warp.

또 본 방법의 이해를 돕기 위해서 본 방법과 관련된 도면을 설명하면 아래와 같다.In addition, the drawings related to the present method will be described below to help understand the present method.

제1a도는 제1공정을 실시하는 상태도로서 도면부호 “1”은 환형제품의 외주면을 합성수지직포포장재(2)로 감싼 후 절단기가 부착된 열융착기(3, 3a)를 상하로 작용시켜 합성수지직포포장재의 접합면을 열융착함과 동시에 절단한다.Figure 1a is a state diagram for carrying out the first process, the reference numeral "1" is a synthetic resin packaging material by wrapping the outer peripheral surface of the annular product with a synthetic resin packaging material (2) and then operating the heat welding machine (3, 3a) with a cutter up and down The joint surface of is cut at the same time as heat-sealing.

위와같은 제1공정이 끝나므로서 제1b도와 같은 환형제품(1)이 내장된 개구된 합성수지직포관상체(4)를 받게 된다.As the first step is completed, the opened synthetic resin woven tubular body 4 in which the annular product 1 as shown in FIG.

제2a도는 제2공정을 실시하는 상태도로서, 도면부호 “1”은 환형제품이고, “4”는 합성수지관상체, “5, 5a”는 합성수지직포의 양단을 집속하는 집속구, “6, 6a”는 내측에 절단칼이 부설된 환형열융착기, “7, 7a”는 집속구(5)(5a)에 연결되어 지지벽(8)(8a)에 고정되어 있는 스프링이며, “9, 9a”는 환형열융착기(6)(6a)와 지지벽(8)(8a)에 고정도어 전후진 할 수 있는 유입기이고, “10”은 환형구로써, 환형제품(1)을 감싸고 있는 합성수지직포관상체(4)의 양단을 집속하여 환형열융착기(6,6a)를 작용시키면 양측의 열융착기가 환형제품의 내경으로 삽입되면서 합성수지직포관상체를 환형제품의 내경측으로 압입하면서 양단의 합성수지직포를 서로 접합함과 동시에 여분의 포장재를 절단하게 된다.FIG. 2A is a state diagram for performing the second process, in which reference numeral “1” is an annular product, “4” is a synthetic resin tubular body, “5, 5a” is a focusing tool for focusing both ends of a synthetic resin fabric, and “6, 6a”). ”Is an annular heat welding machine with a cutting knife placed inside,“ 7, 7a ”is a spring connected to the focusing holes 5, 5a and fixed to the support walls 8, 8a, and 9, 9a. Is an inflow unit which can move forward and backward fixed door to annular heat fusion splicer (6) (6a) and support wall (8) (8a), and “10” is an annular sphere, and is a synthetic resin woven pipe surrounding the annular product (1). By converging both ends of the upper body 4 to actuate the annular heat fusion splicer 6,6a, the both sides of the heat fusion splicer are inserted into the inner diameter of the annular product, and the synthetic resin woven fabric is pressed into the inner diameter side of the annular product while the synthetic resin woven fabrics of both ends are pressed together. At the same time, the extra packaging material is cut.

즉, 제2b도와 같이 열수축되지 않은 상태의 포장된 환형제품(1)이 합성수지직포포장재(2)로서 포장되어 있는 상태가 된다.That is, as shown in FIG. 2B, the packaged annular product 1 in the non-heat shrinked state is packaged as the synthetic resin packaging material 2.

제3도는 열수축되지 않은 상태의 포장된 환형제품(11)을 열수축시키는 상태도로서, 도면부호 “12”는 열원체, “13”은 콘베어벨트로써 콘베이어벨트에 의해 포장된 환형제품이 이동하게 되면 상부의 열원체(12)에서 발생되는 열에 의해 포장재는 수축된다.3 is a state diagram for heat-shrink the packaged annular product 11 in a non-heat-shrinkable state, where reference numeral “12” is a heat source and “13” is a conveyor belt to move the annular product packaged by a conveyor belt. The packaging material is shrunk by the heat generated from the heat source 12.

이상의 단계를 거쳐 포장된 환형제품(11)은 환형몸체를 중심으로 합성수지직포를 구성하는 위사의 열수축에 의해서 강력한 결속력이 발생하게 되며 환형제품의 둘레는 경사에 의하여 밀착되어지므로서 견고한 포장을 얻을 수 있다.The annular product (11) packaged through the above steps is a strong binding force generated by the heat shrink of the weft constituting the synthetic resin woven fabric around the annular body, and the circumference of the annular product is in close contact by the inclined to obtain a solid packaging have.

결국, 본 방법에 의한 환형제품의 포장은 열수축율이 상이한 위사 및 경사로 직조된 합성수지직포로서 포장하므로서 가능할 수 있다 하겠다.As a result, the packaging of the annular product according to the present method may be possible by packaging as a synthetic resin woven fabric of weft and warp yarns having different thermal shrinkage rates.

Claims

Woven and warp woven synthetic resin wrappers with different heat shrinkage rates, wrapped around the outer surface of the annular product, and both ends of the packaging material are heat-sealed and cut at the same time, and then the both ends of the synthetic resin woven tubular body are connected to the resulting opening, A pair of annular heat welding machines with a diameter slightly smaller than the annular sphere of the annular product, while applying a slight pull force to the outside, is brought into contact with the annular sphere, thereby being thermally fused to the annular sphere of the annular product and simultaneously cutting part of the packaging material. A method for packaging an annular product, characterized by obtaining an annular product and heat shrinking it.