KR100768441B1 - Disk dies for forming multi-layer resin products and the method thereof - Google Patents

Disk dies for forming multi-layer resin products and the method thereof Download PDF

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Publication number
KR100768441B1
KR100768441B1 KR1020060075181A KR20060075181A KR100768441B1 KR 100768441 B1 KR100768441 B1 KR 100768441B1 KR 1020060075181 A KR1020060075181 A KR 1020060075181A KR 20060075181 A KR20060075181 A KR 20060075181A KR 100768441 B1 KR100768441 B1 KR 100768441B1
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KR
South Korea
Prior art keywords
concave groove
disk
disc
guide member
thermoplastic resin
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KR1020060075181A
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Korean (ko)
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김현경
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(주)흥원피앤엠
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Priority to KR1020060075181A priority Critical patent/KR100768441B1/en
Priority to PCT/KR2007/003778 priority patent/WO2008018732A1/en
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Publication of KR100768441B1 publication Critical patent/KR100768441B1/en

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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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • B29C48/336—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die
    • B29C48/3363—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die using a layered die, e.g. stacked discs
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

A multi-layered circular dies for forming a multi-layered thermoplastic resin product, and a forming method thereof are provided to increase the number of layers favorably by simplifying the structure thereof and to improve quality thereof. A multi-layered circular dies for forming a multi-layered thermoplastic resin product comprises a disc layering body and a double pipe-type hollow guide member(20). The disc layering body is formed by layering a plurality of discs. One side of the hollow guide member is contacted along a circular circumstance of the disc layering body, and the other side of the hollow guide member is extended in a shape of a circular ring whose interval is reduced. The disc includes a center portion(11), a concave groove(16), and an extrusion unit(18). The center portion is formed with plural connected penetration holes(12,13,14). The concave groove is positioned at an outside of the center portion and formed with predetermined depth. The extrusion unit is positioned between the outside of the concave groove and an outer end of the disc and formed with height which is higher than the concave groove and lower than the center portion. The disc is formed with a passage connected with the concave groove which is close to one of the plural penetration holes.

Description

다층 열가소성 수지제품 성형용 다층 원형 다이스 및 이를 이용한 성형방법{Disk dies for forming multi-layer resin products and the method thereof}Disk dies for forming multi-layer resin products and the method

도 1은 본 발명의 일 실시예의 분해 사시도1 is an exploded perspective view of one embodiment of the present invention

도 2는 상기 실시예의 다이스적층체의 사시도2 is a perspective view of the die stack of the embodiment;

도 3은 도 2의 선 a-a를 따라 취한 단면도3 is a cross-sectional view taken along the line a-a of FIG.

도 4는 도 2의 선 b-b를 따라 취한 단면도4 is a cross-sectional view taken along the line b-b of FIG.

도 5는 도 2의 선 c-c를 따라 취한 단면도 5 is a cross-sectional view taken along the line c-c of FIG.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10. 디스크적층체 11. 중앙부10. Disk stack 11. Center part

12,13,14. 통공 16. 오목홈12,13,14. Through Hole 16. Concave Groove

18. 유출부 22,23,24. 통로18. Outlet 22, 23, 24. Passage

Di. 디스크Di. disk

본 발명은 다층 열가소성 수지제품 성형용 다층 원형 다이스에 관한 것으로서, 좀 더 상세히는 구조가 간단하고 컴팩트하면서도 적층수를 크게 증대시킬 수 있어서 원하는 성능의 고품질의 다층 열가소성 수지제품을 제작할 수 있는 새로운 구조의 다층 열가소성 수지제품 성형용 다층 원형 다이스 및 이를 이용한 성형방법에 관한 것이다.The present invention relates to a multilayer circular die for molding a multilayer thermoplastic resin product, and in more detail, the structure is simple, compact, and can greatly increase the number of stacks, thereby providing a new structure capable of producing a high quality multilayer thermoplastic resin product having a desired performance. A multilayer circular die for molding a multilayer thermoplastic resin product and a molding method using the same.

원형 다이스로 열가소성 수지를 튜브형상의 압출성형하여 불로우 필름, 파이프, 블로우 성형제품 등을 제조할 수 있다. 이러한 열가소성 수지튜브는 압출기에서 용융되고 원형 다이스에서 원하는 형태로 다층을 이룬 후에 냉각공정을 거쳐서 제품이 성형된다. 종래의 원형 다이스로 다층 수지제품을 만드는 방법 중, 피드블록에 의한 방법은 서로 다른 종류의 폴리머가 압출되는 다수의 압출기의 토출단에 피드블록을 연결하여, 이 피드블록에서 여러 종류의 열가소성수지가 서로 이격된 상태로 근접되면서 서로 적층되어, 그 후단에 설치된 원형 다이스를 통해 빠져 나오면서 원하는 제품으로 성형되는 것이다. 이러한 피드블록을 이용하는 방법은 각각의 폴리머의 흐름성에서 차이가 있을 경우에 각 폴리머가 다이스를 통과하면서 균일하게 흐르지 못하여 층 두께가 불균일하게 되기가 쉽다는 문제점이 있다.The thermoplastic resin can be extruded in a tubular shape using a circular die to produce a blow film, a pipe, a blow molded product, and the like. This thermoplastic tube is melted in an extruder, multilayered in a desired shape in a circular die, and then the product is molded through a cooling process. In the conventional method of making a multilayer resin product from a circular die, the feed block method connects the feed block to the discharge end of a plurality of extruders from which different kinds of polymers are extruded, whereby different types of thermoplastic resin They are stacked in close proximity to each other while being spaced apart from each other, and are molded into a desired product while exiting through a circular die installed at a rear end thereof. The method of using such a feed block has a problem in that when there is a difference in flowability of each polymer, each polymer does not flow uniformly through the die and thus the layer thickness tends to be uneven.

한편, 다층 수지제품을 형성하는 또 다른 방법으로, 원형 다이스 내부에 여러 층을 이루도록 다층의 통로를 가공하여, 이 다이스의 통로를 통해 서로 다른 수지를 공급하는 방법도 있으나, 이 방법은 다이스가 두꺼워지는 문제점이 있었다. 따라서 종래의 원형 다이스로는 소요의 품질을 갖춘 10층 이상의 다층 제품을 성형하는 것은 곤란한 실정이다.On the other hand, another method of forming a multi-layered resin product is to process a multi-layered passage to form several layers inside the circular die, and to supply different resins through the die passage, but the die is thick There was a losing problem. Therefore, it is difficult to mold a multilayer product of 10 layers or more having a required quality with a conventional circular die.

그런데, 열가소성 다층 수지제품은 그 적층수가 클수록 제품의 여러 가지 특성을 향상시킬 수 있다. 예를 들면, 인장강도, 신장율, 충격강도, 탄성율, 파단강도, 산소, 수분 또는 가스차단성, 내한성, 내열성, 내용제성 또는 내용해성 등 여러 물성을 향상시킬 수 있다. 아울러, 적층수를 증대시킴으로써, 원가절감, 생산성향상 등의 효과도 기대할 수 있다.However, as the number of laminated layers of a thermoplastic multilayer resin product increases, various characteristics of the product can be improved. For example, various physical properties such as tensile strength, elongation rate, impact strength, elasticity rate, breaking strength, oxygen, moisture or gas barrier property, cold resistance, heat resistance, solvent resistance or solvent resistance can be improved. In addition, by increasing the number of laminations, effects such as cost reduction and productivity improvement can also be expected.

그럼에도 불구하고 종래의 다층 성형제품은 그 적층수가 제한될 뿐만 아니라, 컴팩트하고 경제적인 규모의 다층 열가소성 수지 제품 성형용 원형 다이스는 소개된 바 없다.Nevertheless, conventional multilayer molded articles are not only limited in the number of laminated layers thereof, but also circular dies for molding multilayer thermoplastic resin products on a compact and economic scale have not been introduced.

본 발명은 전술한 바와 같은 종래의 다층 열가소성 수지제품의 성형상의 문제점에 착안하여 제안된 것으로서, 본 발명은 구조가 간단하고 컴팩트하면서도 적층수를 크게 증대시킬 수 있으면서도 소요의 품질을 갖춘 고성능의 다층 열가소성 수지제품을 성형할 수 있는 원형 다이스 및 이를 이용한 성형방법을 제공하고자 하는 것이다.The present invention has been proposed in view of the molding problems of the conventional multilayer thermoplastic resin products as described above, the present invention is simple and compact in structure, and can be greatly increased the number of lamination, while high-performance multilayer thermoplastic with the required quality It is an object of the present invention to provide a circular die and a molding method using the same.

본 발명에 따르면, 다수의 디스크(Di)가 적층되어 이루어진 디스크적층체(10)와, 일측(26)은 상기 디스크적층체(10)의 원통형 둘레벽을 따라 접속되고 타측(27)은 간격이 좁아진 원형링 형태로 연장되는 이중관 형태의 중공가이드부재(20)를 포함하며, 각 디스크(Di)는 서로 연통되는 복수개의 통공(12,13,14)이 형성된 중앙부(11)와, 이 중앙부(11)의 외측에 형성되며 소정의 깊이를 가지는 오목홈(16)과, 이 오목홈(16)의 외측과 디스크의 외측단 사이에 형성되며 상기 중앙부(11)보다 높이가 낮고 상기 오목홈(16)보다 높이가 높은 유출부(18)로 구성되며, 상기 각각의 디스크(Di)에는 복수개의 통공(12,13,14) 중 하나의 통공(12,13 또는 14)에는 인접하는 오목홈(16)과 연통되는 통로(22,23,24)가 각각 형성된 것을 특징으로 하는 다층 열가소성 수지제품 성형용 다층 원형 다이스가 제공된다.According to the present invention, a disk stack 10 formed by stacking a plurality of disks Di and one side 26 are connected along a cylindrical circumferential wall of the disk stack 10 and the other side 27 is spaced apart. It includes a hollow guide member 20 in the form of a double tube extending in the form of a narrowed circular ring, each disk (Di) is a central portion 11 is formed with a plurality of through holes (12, 13, 14) in communication with each other, the central portion ( 11 is formed outside the concave groove 16 having a predetermined depth, and is formed between the outer side of the concave groove 16 and the outer end of the disk, the height is lower than the central portion 11 and the concave groove 16 And a concave groove 16 adjacent to one of the holes 12, 13, or 14 of the plurality of holes 12, 13, 14 in each of the discs Di. A multi-layered circular die for forming a multilayer thermoplastic resin product, characterized in that passages 22, 23, and 24 are formed in communication with each other. It is provided.

본 발명의 다른 특징에 따르면, 다층 열가소성 수지제품의 성형용 다이스를 다수의 디스크(Di)를 적층하고, 인접한 디스크(Di)끼리는 서로 다른 수지공급용 통공(12,13,14)을 통해 수지를 공급하여 디스크의 둘레부 유출부(18)로 유출시켜서 유출된 중공가이드부재(20)를 통해 수지필름을 동심원상으로 순차 적층시켜서 튜브형태로 성형시키는 것을 특징으로 하는 다층 열가소성 수지제품의 성형방법이 제공된다.According to another feature of the present invention, a plurality of disks (Di) are laminated on a molding die of a multilayer thermoplastic resin product, and adjacent disks (Di) are formed by passing resins through different resin supply holes (12, 13, 14). The method of forming a multilayer thermoplastic resin product is characterized in that the resin film is sequentially laminated concentrically through the hollow guide member 20, which is supplied to the outlet portion 18 of the disk and flows out to the outlet portion 18 of the disk. Is provided.

이하에서 도면을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다. 도 1은 본 발명의 일 실시예의 분해 사시도이고, 도 2는 다이스적층체의 사시도이다. 도시된 바와 같이 본 발명에 따르면, 크게 디스크적층체(10)와 이 디스크적층체(10)의 둘레부에 배치되는 이중관 형태의 중공가이드부재(20)로 구성된다. 상기 디스크적층체(10)는 서로 밀착배치되는 다수의 디스크(Di)로 이루어진다. 여기서 Di의 'i'는 다수 적층되는 디스크 중 개개의 디스크를 지칭하기 위한 첨자이다. 도시된 실시예의 디스크적층체(10)는 6개의 디스크(D1,D2,D3,D1,D2 및 D3)와 상부의 1개의 커버디스크(D0)가 적층된 것으로 예시되었으나, 그 적층수는 변경될 수 있음은 물론이다.Hereinafter, with reference to the drawings will be described a preferred embodiment of the present invention. 1 is an exploded perspective view of an embodiment of the present invention, Figure 2 is a perspective view of a die stack. As shown, according to the present invention, it is composed of a disk stack 10 and a hollow guide member 20 of a double tube form disposed in the circumference of the disk stack 10. The disk stack 10 is composed of a plurality of disks (Di) in close contact with each other. Here 'i' of Di is a subscript for referring to individual disks among a plurality of stacked disks. Although the disk stack 10 of the illustrated embodiment is illustrated by stacking six disks D1, D2, D3, D1, D2, and D3 and one cover disk D0 thereon, the number of stacks may vary. Of course it can.

개개의 디스크의 구조를 살펴보면, 디스크(Di)의 가운데 부분에 형성되며 평탄면을 갖는 중앙부(11)와, 그 외측에 배치된 오목홈(16) 및 오목홈(16)의 외측에 배치되는 유출부(18)가 동심원적으로 배치된다. 중앙부(11)의 둘레부에는 복수개의 통공(12,13,14)이 형성되며, 이들 통공(12,13,14)은 인접하는 디스크의 통공 끼리 서로 정렬되어 연통된다. 상기 오목홈(16)은 디스크의 두께가 가장 얇아서 높이가 가장 낮은 부분이고, 상기 유출부(18)는 오목부(16) 보다는 두께가 두껍지만 중앙부(11) 보다는 얇아서, 디스크를 서로 적층시키면 중앙부(11)에서 서로 밀착되고 유출부(18)에는 디스크의 둘레를 따라 간극(g)이 형성된다.Looking at the structure of the individual disks, the central portion 11 formed in the center portion of the disk (Di) having a flat surface, the outflow grooves disposed outside the concave grooves 16 and the concave grooves 16 disposed outside thereof The portions 18 are arranged concentrically. A plurality of through holes 12, 13, and 14 are formed in the periphery of the central portion 11, and these through holes 12, 13, 14 are aligned with each other and communicate with the through holes of adjacent disks. The recessed groove 16 is the thinnest of the disks so that the height is the lowest, and the outlet portion 18 is thicker than the recessed portion 16 but thinner than the central portion 11 so that the disks are stacked on each other. In close contact with each other at 11, the outlet portion 18 is provided with a gap g along the circumference of the disk.

그리고 각각의 디스크(D)에 형성된 복수개의 통공(12,13,14) 중 어느 하나의 통공(12,13 또는 14)에는 인접하는 오목부(16)와 연통되는 통로(22,23,24)가 각각 형성된다. 도 3은 도 2의 선 a-a를 따라 취한 단면도로서, 서로 이격 배치된 디스크(D1,D1)의 통공(12,12)에 통로(22,22)가 형성된 것이 도시되며, 도 4는 도 2의 선 b-b를 따라 취한 단면도로서, 서로 이격 배치된 디스크(D2,D2)의 통공(13,13)에 통로(23,23)가 형성된 것이 도시되며, 도 5는 도 2의 선 c-c를 따라 취한 단면도로서, 서로 이격 배치된 디스크(D3,D3)에 통공(24,24)이 형성된 것이 도시된다.One of the plurality of through holes 12, 13, and 14 formed in each of the disks D may include passages 22, 23, and 24 communicating with adjacent recesses 16. Are each formed. FIG. 3 is a cross-sectional view taken along the line aa of FIG. 2 and shows passages 22 and 22 formed in the through holes 12 and 12 of the discs D1 and D1 spaced apart from each other, and FIG. A cross-sectional view taken along the line bb, in which the passages 23 and 23 are formed in the through holes 13 and 13 of the discs D2 and D2 spaced apart from each other, and FIG. 5 is a cross-sectional view taken along the line cc of FIG. As shown, the through holes 24 and 24 are formed in the disks D3 and D3 spaced apart from each other.

한편, 상기 중공가이드부재(20)는 이중관 또는 이중 나팔관 형태로 구성되어 일측(26)의 내측단은 디스크적층체(10)의 단부디스크(D3)의 바깥쪽의 커버디스크(D0) 부분에 접속되고 일측(26)의 외측단은 디스크적층체(10)의 반대쪽 단부디스크(D1) 에 접속된다. 그리고 중공가드부재(29)의 타측(27)은 간격이 좁아진 원형링 또는 원형슬릿 형태로 연장되어 다층 수지제품의 토출단을 형성하게 된다.On the other hand, the hollow guide member 20 is configured in the form of a double tube or double trumpet tube so that the inner end of one side 26 is connected to the cover disk (D0) portion of the outer disk of the end disk (D3) of the disk stack (10) The outer end of one side 26 is connected to the disc D1 opposite to the disk stack 10. And the other side 27 of the hollow guard member 29 is extended in the form of a narrow circular ring or circular slit to form the discharge end of the multilayer resin product.

이러한 구조를 가진 장치에서 만일 디스크적층체(10)의 개개의 통공(12,13,14)에 서로 다른 종류의 용융수지A, B 및 C를 투입한다면, 수지A는 도 3에 도시된 통공(12)을 거쳐 통로(22,22)를 통해 오목홈(16)으로 유입되며 이 오목홈(16)에서는 디스크(D1,D1)의 둘레부를 따라 간극(g)이 형성되는 유출부(18)를 통해 수지가 빠져나와 중공가이드부재(20)에 의해 안내되어 튜브형태로 유출된다. 이와 유사한 방식으로 수지B는 도 4에 도시된 통공(13)을 거쳐 통로(23,23)를 통해 오목홈(16)으로 유입되어 디스크(D2,D2) 둘레부의 유출부(18)를 통해 빠져나와 중공가이드부재(20)에 의해 안내되어 튜브형태로 유출된다. 또한, 수지C는 도 5에 도시된 통공(14)을 거쳐 통로(24,24)를 통해 오목홈(16)으로 유입되어 디스크(D3,D3)의 둘레부 유출부(18)를 통해 빠져나와 중공가이드부재(20)에 의해 안내되어 튜브형태로 유출된다. 이와 같이 튜브형태로 각각 유출되는 원통형 필름은 인접하는 수지필름과는 물성이 서로 다른 것이 서로 순차적으로 동심원상으로 적층되어 원통형 다층 수지제품을 형성하게 된다.In a device having such a structure, if different types of molten resins A, B, and C are introduced into the individual through holes 12, 13, and 14 of the disc stack 10, the resin A may be formed through the through hole shown in FIG. 12 is introduced into the concave groove 16 through the passages 22 and 22, and in the concave groove 16, an outlet portion 18 in which a gap g is formed along the circumference of the discs D1 and D1 is formed. The resin is drawn out and guided by the hollow guide member 20 to flow out of the tube form. In a similar manner, the resin B enters the concave groove 16 through the passages 23 and 23 through the through hole 13 shown in FIG. 4 and exits through the outlet portion 18 around the discs D2 and D2. It is guided by the hollow guide member 20 to flow out in the form of a tube. In addition, the resin C flows into the concave groove 16 through the passages 24 and 24 through the through hole 14 shown in FIG. 5 and exits through the peripheral outlet 18 of the disks D3 and D3. Guided by the hollow guide member 20 is discharged in the form of a tube. As described above, the cylindrical films each flowing out in the form of a tube have different physical properties from neighboring resin films sequentially stacked concentrically with each other to form a cylindrical multilayer resin product.

도시된 실시예에서는 6층으로 적층된 필름을 예시하였으나, 예를 들어 디스크(Di)의 중앙부(11)를 3mm로 하고, 오목홈(16)의 두께를 1mm로 하고, 유출부(18)의 두께를 2mm로 제작하는 것도 가능하며, 이러한 방식으로 디스크의 두께를 얇게 제작한다면, 적층필름의 단수를 대폭 늘리더라도 전체 다이스의 크기가 작고 컴팩트하게 구성할 수 있다. In the illustrated embodiment illustrated a film laminated in six layers, for example, the center portion 11 of the disk (Di) to 3mm, the thickness of the concave groove 16 to 1mm, the It is also possible to produce a thickness of 2mm, and if the disk is made thin in this way, even if the number of layers of the laminated film is greatly increased, the size of the whole die can be made compact and compact.

이상에서 설명한 본 발명에 따르면, 다층 열가소성 수지제품의 성형용 다이스를 다수의 디스크(Di)를 적층하고, 인접한 디스크(Di)끼리는 서로 다른 수지공급용 통공(12,13,14)을 통해 수지를 공급하여 디스크의 둘레부 유출부(18)로 유출시켜서 유출된 중공가이드부재(20)를 통해 수지필름을 동심원상으로 순차 적층시켜서 튜브형태로 성형시킴으로써, 구조가 간단하고 컴팩트한 장치로서, 적층수가 증대된 고품질의 다층 수지성형 제품을 얻을 수 있다.According to the present invention described above, a plurality of disks (Di) are laminated on a die for molding a multilayer thermoplastic resin product, and adjacent disks (Di) are separated from each other through resin supply through holes (12, 13, 14). The resin film is sequentially stacked concentrically through the hollow guide member 20, which is supplied to the outlet portion 18 of the disk and flows out to the outlet portion 18, thereby forming a tube shape. Improved high quality multilayer resin molding products can be obtained.

Claims (2)

다수의 디스크(Di)가 적층되어 이루어진 디스크적층체(10)와, 일측(26)은 상기 디스크적층체(10)의 원통형 둘레벽을 따라 접속되고 타측(27)은 간격이 좁아진 원형링 형태로 연장되는 이중관 형태의 중공가이드부재(20)를 포함하며, 각 디스크(Di)는 서로 연통되는 복수개의 통공(12,13,14)이 형성된 중앙부(11)와, 이 중앙부(11)의 외측에 형성되며 소정의 깊이를 가지는 오목홈(16)과, 이 오목홈(16)의 외측과 디스크의 외측단 사이에 형성되며 상기 중앙부(11)보다 높이가 낮고 상기 오목홈(16)보다 높이가 높은 유출부(18)로 구성되며, 상기 각각의 디스크(Di)에는 복수개의 통공(12,13,14) 중 하나의 통공(12,13 또는 14)에는 인접하는 오목홈(16)과 연통되는 통로(22,23,24)가 각각 형성된 것을 특징으로 하는 다층 열가소성 수지제품 성형용 다층 원형 다이스.The disk stack 10 formed by stacking a plurality of disks Di and one side 26 are connected along a cylindrical circumferential wall of the disk stack 10, and the other side 27 is in the form of a circular ring having a narrow gap. It includes a hollow guide member 20 in the form of an extended double tube, each disk (Di) is a central portion 11 is formed with a plurality of through holes (12, 13, 14) in communication with each other, outside the central portion (11) Formed between the concave groove 16 having a predetermined depth, and formed between the outer side of the concave groove 16 and the outer end of the disk, the height being lower than the central portion 11 and higher than the concave groove 16. Outlet portion 18, each of the disk (Di), one of the plurality of through holes (12, 13, 14) of the passage (12, 13 or 14) is a passage communicating with the adjacent concave groove (16) (22, 23, 24) are formed, respectively, a multilayer circular die for molding a multilayer thermoplastic resin product. 다층 열가소성 수지제품의 성형용 다이스를 다수의 디스크(Di)를 적층하고, 인접한 디스크(Di)끼리는 서로 다른 수지공급용 통공(12,13,14)을 통해 수지를 공급하여 디스크의 둘레부 유출부(18)로 유출시켜서 유출된 중공가이드부재(20)를 통해 수지필름을 동심원상으로 순차 적층시켜서 튜브형태로 성형시키는 것을 특징으로 하는 다층 열가소성 수지제품의 성형방법.A plurality of disks (Di) are laminated on a molding die of a multilayer thermoplastic resin product, and adjacent disks (Di) are supplied with resin through different resin supply holes (12, 13, 14), and the circumference of the disk is discharged. A method of forming a multilayer thermoplastic resin product, characterized in that the resin film is sequentially laminated concentrically through the hollow guide member (20), which has been spilled out, and formed into a tube shape.
KR1020060075181A 2006-08-09 2006-08-09 Disk dies for forming multi-layer resin products and the method thereof KR100768441B1 (en)

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Publication number Priority date Publication date Assignee Title
JPH0471280A (en) * 1990-07-11 1992-03-05 Toyota Motor Corp Manufacture of laminated piezoelectric element
JPH09273592A (en) * 1996-04-04 1997-10-21 Sumitomo Rubber Ind Ltd Earthquake isolation structure
JPH09326321A (en) * 1996-06-06 1997-12-16 Mitsubishi Electric Corp Static induction instrument
JP2003117927A (en) 2001-10-12 2003-04-23 Bando Chem Ind Ltd Manufacturing method of rubber-steel sheet laminate
KR20060036482A (en) * 2003-11-12 2006-04-28 미츠비시 쥬고교 가부시키가이샤 Multi-layer blown film molding machine and method of molding multi-layer blown film

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0471280A (en) * 1990-07-11 1992-03-05 Toyota Motor Corp Manufacture of laminated piezoelectric element
JPH09273592A (en) * 1996-04-04 1997-10-21 Sumitomo Rubber Ind Ltd Earthquake isolation structure
JPH09326321A (en) * 1996-06-06 1997-12-16 Mitsubishi Electric Corp Static induction instrument
JP2003117927A (en) 2001-10-12 2003-04-23 Bando Chem Ind Ltd Manufacturing method of rubber-steel sheet laminate
KR20060036482A (en) * 2003-11-12 2006-04-28 미츠비시 쥬고교 가부시키가이샤 Multi-layer blown film molding machine and method of molding multi-layer blown film

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