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KR930016231A - Hollow plastic products having an axial extension and a radial extension and a method of manufacturing the same - Google Patents

Hollow plastic products having an axial extension and a radial extension and a method of manufacturing the same Download PDF

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Publication number
KR930016231A
KR930016231A KR1019920000499A KR920000499A KR930016231A KR 930016231 A KR930016231 A KR 930016231A KR 1019920000499 A KR1019920000499 A KR 1019920000499A KR 920000499 A KR920000499 A KR 920000499A KR 930016231 A KR930016231 A KR 930016231A
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South Korea
Prior art keywords
extension
axial extension
radial extension
hollow plastic
axial
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KR1019920000499A
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Korean (ko)
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KR970000933B1 (en
Inventor
타츠야 나까가와
야스오 에자키
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타츠야 나까가와
에쿠세르 가부시끼가이샤
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Priority to KR1019920000499A priority Critical patent/KR970000933B1/en
Publication of KR930016231A publication Critical patent/KR930016231A/en
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Publication of KR970000933B1 publication Critical patent/KR970000933B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D22/00—Producing hollow articles
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • 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
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/02—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only

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

Abstract

덕트 또는 관과 같은 축방향 연장부와 플랜지 또는 브라켓과 같은 방사상 연장부를 포함하는 플라스틱 제품의 제조방법을 제공한다.Provided is a method of making a plastic article comprising an axial extension such as a duct or tube and a radial extension such as a flange or bracket.

방사상 연장부를 형성하도록 블로우 성형되고 금형내에 형성된 제1금형 캐비티내에 패리슨을 위치시킨 다음 상기 형성된 방사상연장부의 외부둘레면의 일부에 이웃하는 제2금형 캐비티를 형성하도록 이동가능한 금형 세그먼트를 후퇴위치에 이동한다.Placing the parison in a first mold cavity formed in the mold and blow molded to form a radial extension, and then moving the mold segment to a retracted position to form a second mold cavity adjacent to a portion of the outer circumferential surface of the formed radial extension. Move.

다음에, 제2용융플라스틱 물질을 제2금형 캐비티내에 공급하고 이동가능한 금형 세그먼트를 다시 제2플라스틱 물질을 압축하기 위하여 다른 소정의 위치로 이동하여, 방사상 연장부를 형성한다.Next, the second molten plastic material is supplied into the second mold cavity and the movable mold segment is moved to another predetermined position again to compress the second plastic material to form a radial extension.

얻어진 중공플라스틱 제품은 축방향 연장부와 방사상 연장부 사이의 구조적 일체성이 매우 높다.The hollow plastic product obtained has a very high structural integrity between the axial extension and the radial extension.

Description

축방향 연장부와 방사상 연장부를 갖는 중공(中空)플라스틱 제품 및 그 제조방법Hollow plastic products having axial extension and radial extension and manufacturing method thereof

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는, 방사상 연장부로서 플랜지를 갖는 중공 플라스틱 제품을 나타내는 개략 사시도, 제2도는, 플랜지를 갖는 중공 플라스틱 제품을 제조하는 대표적인 종래의 블로우 성형법의 공정을 나타내는 개략 단면도, 제3도는, 본 발명의 방법을 실행함에 있어 사용되는 본 발명의 실시예에 의하여 구성된 장치를 나타내는 개략 단면도, 제4a도 내지 제4e도는, 본 발명의 방법의 각 단계로 제3도의 장치 상태를 각각 나타내는 개략 단면도.1 is a schematic perspective view showing a hollow plastic product having a flange as a radial extension, FIG. 2 is a schematic sectional view showing a process of a typical conventional blow molding method for producing a hollow plastic product having a flange, and FIG. 4A through 4E are schematic cross-sectional views showing apparatus states of FIG. 3 at respective stages of the method of the present invention, respectively, showing apparatuses constructed by embodiments of the present invention used in carrying out the method of FIG.

Claims (18)

하기 (가)∼(마)공정으로 이루어지는 축방향 연장부와 방사상 연장부를 갖는 중공 플라스틱 제품의 방법. (가)다수개의 금형 섹션중 적어도 하나가 제1소정위치에서 이동가능한 금형 세그먼트를 포함하며, 다수개의 금형 섹션을 가져와서 형성된 제1금형 캐비티내에 제1플라스틱 물질의 패리슨을 위치시키는 공정, (나)블로우 금형 상기 패리슨에 상기 패리슨의 내부로 압축 가스를 도입하여 상기 축방향 연장부를 형성하는 공정, (다)제2소정 위치에 상기 이동가능한 금형 세그먼트를 이동하여 상기 축 방향 연장부의 외부둘레면의 부분에 이웃하는 제2 금형 캐비티를 형성하는 공정, (라)상기 제2금형 캐비티로 소정량의 제2플라스틱 물질을 공급하는 공정, (마)압축된 상기 제2금형 캐비티 내에 상기 제2플라스틱 물질을 가지도록 제3소정위치에 상기 이동가능한 금형 세그먼트를 이동하여, 상기 축방향 연장부와 일체로 되는 상기 방사상 연장부를 형성하는 공정.The hollow plastic product which has an axial extension part and a radial extension part which consists of following (a)-(e) process. (A) at least one of the plurality of mold sections comprises a mold segment movable in a first predetermined position, the process of positioning a parison of the first plastic material in a first mold cavity formed by taking a plurality of mold sections; B) a blow mold in which the compressed gas is introduced into the parison into the parison to form the axial extension, and (c) the movable mold segment is moved to a second predetermined position to externally the axial extension. Forming a second mold cavity adjacent to a portion of the circumferential surface; (d) supplying a predetermined amount of second plastic material to the second mold cavity; and (e) the second mold cavity in the compressed second mold cavity. 2 move the movable mold segment to a third predetermined location to have a plastic material to form the radial extension that is integral with the axial extension; . 제1항에 있어서, 상기 축방향 연장부는, 최소한 부분적으로 중공이고, 상기 방사상 연장부는, 최소한 부분적으로 고체인 중공 플라스틱 제품의 방법.The method of claim 1, wherein the axial extension is at least partially hollow and the radial extension is at least partially solid. 제1항에 있어서, (마)공정중에서 압축가스는, 상기 축방향 연장부가 국부적으로 변형되는 것을 방지하도록 상기 축방향 연장부의 내부로 도입되는 중공 플라스틱 제품의 방법.2. The method of claim 1 wherein, during the step (e), compressed gas is introduced into the axial extension to prevent local deformation of the axial extension. 제1항에 있어서, 상기 이동가능한 금형 세그먼트는, 상기 축방향 연장부의 종축과 평행하게 이동하는 중공 플라스틱 제품의 방법.The method of claim 1, wherein the movable mold segment moves parallel to the longitudinal axis of the axial extension. 제1항에 있어서, 상기 이동가능한 세그먼트는, 상기 축방향 연장부와 종축에 대하여 수직으로 이동하는 중공 플라스틱 제품의 방법.The method of claim 1 wherein the movable segment moves vertically relative to the axial extension and the longitudinal axis. 제5항에 있어서, 상기 이동가능한 금형 세그먼트는, 물리적 맞물림 구조물이 상기 축 방향 연장부와 방사상 연장부 사이의 이음부에 마련될 수 있도록 상기 제1금형 캐비티를 형성하는 끝단면이 마련되는 중공 플라스틱 제품의 방법.6. The hollow plastic of claim 5, wherein the movable mold segment is provided with an end face forming the first mold cavity such that a physical engagement structure can be provided at the joint between the axial extension and the radial extension. Method of product. 제1항에 있어서, 상기 이동가능한 금형 세그먼트는, 상기 방사상 연장부를 상기 공정(마)에 의하여 형성할때 동시에 상기 방사상 연장부내에 구멍을 형성하도록 상기 제2금형 캐비티내로 튀어나올 수 있는 후퇴가능한 핀이 마련되는 중공 플라스틱 제품의 방법.The retractable pin of claim 1, wherein the movable mold segment is capable of protruding into the second mold cavity to form a hole in the radial extension at the same time the radial extension is formed by the process. The method of hollow plastic product in which it is laid. 제1항에 있어서, 상기 축방향 연장부는 튜블러부이고, 상기 방사상 연장부는 고체부인 중공 플라스틱 제품의 방법.The method of claim 1 wherein the axial extension is a tubular portion and the radial extension is a solid portion. 제8항에 있어서, 상기 튜블러부는, 2차원 또는 3차원으로 구부러지거나 직선인 중공 플라스틱 제품의 방법.The method of claim 8, wherein the tubular portion is bent or straight in two or three dimensions. 제8항에 있어서, 상기 고체부는 상기 튜블러부의 적어도 한쪽 끝단에 플랜지 형상인 중공 플라스틱 제품의 방법.9. The method of claim 8, wherein the solid portion is flange-shaped at at least one end of the tubular portion. 제8항에 있어서, 상기 고체부는 브라켓 형상인 중공 플라스틱 제품의 방법.The method of claim 8, wherein the solid portion is bracket shaped. 제1항 내지 제11항중 어느 1항에 의하여 제조된 중공플라스틱 제품.The hollow plastic product manufactured according to any one of claims 1 to 11. 블로우 성형법에 의하여 제조되는 축방향 연장부와, 상기 축 방향 연장부와 일체로 되도록 압축성형법에 의하여 제조되는 방사상 연장부와로 구성되는 중공 플라스틱 제품.A hollow plastic product comprising an axial extension produced by a blow molding method and a radial extension manufactured by a compression molding method to be integral with the axial extension. 제13항에 있어서, 상기 축 방향 연장부는, 최소한 부분적으로 소망의 형상으로 2차원 또는 3차원적으로 구부려지는 중공 플라스틱 제품.The hollow plastic article of claim 13, wherein the axial extension is at least partially curved in two or three dimensions to a desired shape. 제13항에 있어서, 상기 방사상 연장부는, 상기 축 방향 연장부의 최소한 한쪽 끝단에 형성된 플랜지를 포함하는 중공 플라스틱 제품.The hollow plastic article of claim 13, wherein the radial extension comprises a flange formed at at least one end of the axial extension. 제13항에 있어서, 상기 축방향 연장부 및 방사상 연장부는, 동일한 플라스틱 물질로 부터 형성되는 중공 플라스틱 제품.The hollow plastic article of claim 13, wherein the axial extension and the radial extension are formed from the same plastic material. 제13항에 있어서, 상기 축방향 연장부는, 비강화 플라스틱 물질로 부터 형성되고, 상기 방사상 연장부는, 강화플라스틱 물질로 부터 형성되는 중공 플라스틱 제품.The hollow plastic article of claim 13, wherein the axial extension is formed from an unreinforced plastic material and the radial extension is formed from a reinforced plastic material. 제13항에 있어서, 물리적 맞물림 구조물은, 상기 축방향부와 방사상 연장부 사이의 이음부에 마련되는 중공 플라스틱 제품.The hollow plastic article of claim 13, wherein a physical engagement structure is provided at the joint between the axial portion and the radial extension. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920000499A 1992-01-15 1992-01-15 Method for producing hollow plastic articles having axial extensions and radial extensions and hollow plastic conduits made therefrom KR970000933B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920000499A KR970000933B1 (en) 1992-01-15 1992-01-15 Method for producing hollow plastic articles having axial extensions and radial extensions and hollow plastic conduits made therefrom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920000499A KR970000933B1 (en) 1992-01-15 1992-01-15 Method for producing hollow plastic articles having axial extensions and radial extensions and hollow plastic conduits made therefrom

Publications (2)

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KR930016231A true KR930016231A (en) 1993-08-26
KR970000933B1 KR970000933B1 (en) 1997-01-21

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KR1019920000499A KR970000933B1 (en) 1992-01-15 1992-01-15 Method for producing hollow plastic articles having axial extensions and radial extensions and hollow plastic conduits made therefrom

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