KR850001068A - 스트립으로 밴드를 제조하는 장치 및 방법 - Google Patents

스트립으로 밴드를 제조하는 장치 및 방법 Download PDF

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KR850001068A
KR850001068A KR1019840004507A KR840004507A KR850001068A KR 850001068 A KR850001068 A KR 850001068A KR 1019840004507 A KR1019840004507 A KR 1019840004507A KR 840004507 A KR840004507 A KR 840004507A KR 850001068 A KR850001068 A KR 850001068A
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roller
die
strip
orifice
orifices
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KR1019840004507A
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KR910005162B1 (ko
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에드셀 닉슨(외 2) 브라이안
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칼 에이취. 크루코우
더구드이어 타이어 앤드 러버 캄파니
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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
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/52—Unvulcanised treads, e.g. on used tyres; Retreading
    • B29D30/58—Applying bands of rubber treads, i.e. applying camel backs
    • B29D30/62—Applying bands of rubber treads, i.e. applying camel backs by extrusion or injection of the tread on carcass
    • 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
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/72—Side-walls
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0013—Extrusion moulding in several steps, i.e. components merging outside the die
    • B29C48/0014—Extrusion moulding in several steps, i.e. components merging outside the die producing flat articles having components brought in contact outside the extrusion die
    • 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
    • B29C48/07—Flat, e.g. panels
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • 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
    • B29C48/35—Extrusion nozzles or dies with rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00—Pneumatic or solid tyres or parts thereof

Abstract

내용 없음

Description

스트립으로 밴드를 제조하는 장치 및 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명을 구체화한 다수의 오리피스를 지닌 롤러다이 압출장치의 부분단면 정면도.
제2도는 부분단면 한다이헤드, 롤러다이와 이송벨트의 일부분이 도시되어 있는 제1도의 부분 확대도.
제3도는 스트립이 롤러표면과 대체 가능한 인서트를 지닌 안내장치에 부착된 것을 도시하는 제2도의 선3-3부분 단면도.

Claims (14)

  1. 롤러표면(28)에 의해 형성된 축(C-C)을 지닌롤러(26)와 이 축에 대해 상기 롤러(26)를 회전시키는 장치를 구비하고, 상기 롤러표면(28)에 근접하여 그 롤러표면(28)과 미끄럼 운동하기 위한 원통형표면(31)을 지닌 다이헤드장치(18)를 포함하며, 두개 이상의 압출가능한 탄성재료의 스트립을 하나의 성형된 동시 압출물(64)로 결합시키는 다수개의 오리피스를 지닌 롤러다이 압출장치(10)에 있어서, 상기 다이헤드장치(18)에 형성된 제1오리피스(40)는 상기 롤러표면(28) 위에 적어도 제1스트립(72)의 탄성재료를 부착시키기 위한 위치에 설치되며, 제1오리피스와 일정한 거리를 두고 다이헤드장치(18)에 형성된 제2오리피스(46)는 두개의 스트립(72,78)에 대한 단일의 중첩압출물(64)을 성형하도록 일정한 거리만큼 떨어진 위치에서 롤러표면(28) 위에 탄성재료의 적어도 제2스트립(78)을 부착시키기 위한 위치에 설치된 것을 특징으로 하는 다수개의 오리피스를 구비한 롤러다이 압출장치.
  2. 제1항에 있어서, 제2오리피스(46)가, 제1스트립(72)을 롤러표면(28) 위에 부착시킨 후에 제2스트립(78)을 상기 롤러표면(28) 위에 부착시키기 위한 제1오리피스(40)에 대응하는 위치에 설치된 것을 특징으로 하는 다수개의 오리피스를 구비한 롤러다이 압출장치.
  3. 제1항에 있어서, 제1오리피스(40)와 제2오리피스(46)가 롤러(26)의 축(C-C)에 일정한 각도로 배치된 것을 특징으로 하는 다수개의 오리피스를 구비한 롤러다이 압출장치.
  4. 제1항에 있어서, 다이헤드장치(18)가 롤러표면(28) 위에 부착한 후 제1스트립(72)과 제2스트립(78)과 미끄럼 접촉하는 안내장치(42)를 포함하는 것을 특징으로 하는 다수개의 오리피스를 구비한 롤러다이 압출장치.
  5. 제1항에 있어서, 제1압출기(20)를 포함하는 제1압력장치(20)와, 제2압출기(22)를 포함하는 제2압력장치(22)가 서로 일정한 거리를 두고 설치되며, 상기 다이헤드장치(18)는 제1 및 2압출기(20)(22)에 연결된 다이요소(18)를 포함하며, 제1오리피스(40)와 제1압출기(20) 사이의 다이요소(18) 내에는 제1다이통로(38)와, 제2오리피스(46)와 제2압출기(22) 사이의 다이요소(18) 내에는 제2다이통로(44)가 형성된 것을 특징으로 하는 다수개의 오리피스를 구비한 롤러다이 압출장치.
  6. 제1항에 있어서, 제1오리피스(114)를 형성하는 제1다이헤드(102)와, 제1다이헤드(102)의 원주방향 아래쪽으로 일정한 거리를 두고 제2오리피스(118)를 형성하는 제2다이헤드(106)가 설치되고, 상기 안내장치에는 안내요소(116)가 제2오리피스(118) 아래쪽에 형성된 것을 특징으로 하는 다수개의 오리피스를 구비한 롤러다이 압출장치.
  7. 제1항에 있어서, 축이 보통 수직이며 지지장치(160)가 롤러표면으로부터 성형동시 압출물을 제거시키기 위하여 설치되고 수평벨트장치(161)가 롤러(148)로부터 반경방향으로 거리를 둔 위치에까지 동시 압출물(159)을 운반하기 위해 지지장치(160)로부터 성형 압출물(159)을 수용하도록 설치된 것을 특징으로 하는 다수개의 오리피스를 구비한 롤러다이 압출장치.
  8. 롤러다이의 적어도 한 롤러(26)상에 적어도 두가지 성분의 스트립(72,78)으로 성형 동시 압출물(64)을 제조하는 방법에 있어서,
  9. (a) 제1위치(58)에서 롤러(26)위에 제1스트립(72)을 압출하고,
  10. (b) 롤러(26)위에 제1스트립(72)을 연속적으로 제조하기 위해 축(C-C)에 대해 롤러를 회전시키고,
  11. (c) 롤러(26)상에 두 성분의 스트립(72,78)에 대한 단일의 동시 압출물(64)을 성형하기 위하여 제1위치(58)에서 떨어진 제2위치(60)에서 롤러(26)위에 제2스트립(78)을 압출시키는 공정으로 구성된 것을 특징으로 한 동시 압출물의 제조방법.
  12. 제8항에 있어서, 제1스트립(72)이 제2스트립(78)의 압출전에 제1의 거리만큼 롤러(26)에 의해서 운반되도록 롤러(26)상의 제2위치(60)로부터 축(C-C)에 대하여 제1위치(58)가 일정한 각도만큼 떨어져 있는 것을 특징으로 한 동시 압출물의 제조방법.
  13. 제9항에 있어서, 제1거리만큼 롤러(26)에 의해서 운반되는 동안 제1스트립(72)을 안내하고, 제2스트립(78)이 롤러(26)위에 압출된 후 단일의 중첩 압출물(64)을 안내하는 것을 특징으로 한 동시 압출물의 제조방법.
  14. ※참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019840004507A 1983-07-29 1984-07-28 스트립으로 밴드를 제조하는 장치 및 방법 KR910005162B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US518,736 1983-07-29
US06/518,736 US4539169A (en) 1983-07-29 1983-07-29 Apparatus and method for forming a co-extrusion from extruded strips

Publications (2)

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KR850001068A true KR850001068A (ko) 1985-03-14
KR910005162B1 KR910005162B1 (ko) 1991-07-23

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KR1019840004507A KR910005162B1 (ko) 1983-07-29 1984-07-28 스트립으로 밴드를 제조하는 장치 및 방법

Country Status (9)

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US (1) US4539169A (ko)
EP (1) EP0139604B1 (ko)
JP (1) JPS6054831A (ko)
KR (1) KR910005162B1 (ko)
AU (1) AU561938B2 (ko)
BR (1) BR8403555A (ko)
CA (1) CA1219109A (ko)
DE (1) DE3467526D1 (ko)
ZA (1) ZA845478B (ko)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526528A (en) * 1984-06-28 1985-07-02 The Goodyear Tire & Rubber Company Apparatus for forming a co-extrusion from extruded strips
DE3424257C2 (de) * 1984-06-30 1986-05-15 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Einrichtung zur Herstellung von Laufstreifen für Autoreifen oder anderen Profilen oder Bahnen
US4690862B1 (en) * 1984-12-28 1998-03-17 Gossen Corp Integral composite profile of cellular and non-cellular resins and dual extension method for its manufacture
US4683095A (en) * 1985-05-08 1987-07-28 The Uniroyal Goodrich Tire Company Early progressive junction extrusion process and system
US4647467A (en) * 1985-09-30 1987-03-03 Nabisco Brands, Inc. Apparatus and process for coextruding a fat and a dough
DE3737676C1 (de) * 1987-11-06 1989-01-26 Berstorff Gmbh Masch Hermann Verfahren und Anlage zum Herstellen von aus mehr als einer Kautschukkomponente bestehenden Profilstreifen fuer Laufstreifen von Autoreifen
DE3806387A1 (de) * 1988-02-29 1989-09-07 Troester Maschf Paul Verfahren und vorrichtung zur bearbeitung von elastomerischen massen, insbesondere kunststoff, kautschuk und deren mischungen
FR2648388B1 (fr) * 1989-06-16 1992-09-04 Goodyear Tire & Rubber Appareil d'extrusion a filiere a rouleau, notamment pour element coextrude pour pneumatique
US5017118A (en) * 1989-06-16 1991-05-21 The Goodyear Tire & Rubber Company Apparatus for forming a coextrusion from extruded strips
US5030079A (en) * 1989-10-27 1991-07-09 The Goodyear Tire & Rubber Company Roller die extrusion and calendering apparatus
JPH061936U (ja) * 1992-06-11 1994-01-14 株式会社日本気化器製作所 オイルシール
FR2700291A1 (fr) * 1993-01-08 1994-07-13 Michelin & Cie Appareil d'extrusion et procédé d'extrusion pour mélanges de caoutchouc cru.
AUPM482694A0 (en) * 1994-03-31 1994-04-28 Ornamental Cornice Pty Ltd Continuous mouldings and methods of production thereof
EP0753391B1 (en) * 1995-07-13 2001-09-19 Sumitomo Rubber Industries Ltd. Elastomer extruding apparatus
WO1999038664A1 (en) * 1998-01-29 1999-08-05 The Goodyear Tire And Rubber Company Extrudate shrinkage control and reduction
US6695606B1 (en) 1998-01-29 2004-02-24 The Goodyear Tire & Rubber Company Extrudate shrinkage control and reduction
US6951233B1 (en) * 1998-02-26 2005-10-04 Compagnie Generale Des Etablissements Michelin-Michelin & Cie Electrically conductive tire and apparatus and process for extruding elements which have been made conductive
FR2775220A1 (fr) * 1998-02-26 1999-08-27 Michelin & Cie Pneumatique conducteur d'electricite et appareillage d'extrusion d'un profile avec insert conducteur
WO1999043488A1 (en) * 1998-02-27 1999-09-02 The Goodyear Tire And Rubber Company Conveyors for a roller die extruder
US7226559B2 (en) * 2000-12-08 2007-06-05 Toyota Motor Sales, U.S.A., Inc. Method for molding structures
CN1238176C (zh) * 2001-05-16 2006-01-25 米其林技术公司 橡胶胶料复合挤出装置
US6821106B1 (en) * 2003-06-24 2004-11-23 The Goodyear Tire & Rubber Company Roller die preformer for wide extrusions
US7172008B2 (en) * 2003-09-18 2007-02-06 Velcro Industries B.V. Hook fasteners and methods of making the same
JP4681652B2 (ja) * 2006-09-12 2011-05-11 東洋ゴム工業株式会社 タイヤ製造方法
JP5039127B2 (ja) * 2007-03-27 2012-10-03 株式会社ブリヂストン 未加硫ゴム押出装置及び未加硫ゴムの製造方法
FR2924376B1 (fr) * 2007-12-03 2009-11-20 Michelin Soc Tech Dispositif et procede de realisation d'une bande de roulement
FR3046105B1 (fr) * 2015-12-23 2017-12-22 Michelin & Cie Tete de coextrusion d’un profile caoutchouteux complexe destine a la fabrication d’un pneumatique
FR3060435A1 (fr) 2016-12-20 2018-06-22 Compagnie Generale Des Etablissements Michelin Tete de coextrusion d'un profile caoutchouteux complexe destine a la fabrication d'un pneumatique
FR3060436A1 (fr) * 2016-12-20 2018-06-22 Compagnie Generale Des Etablissements Michelin Procede de coextrusion d’un profile caoutchouteux complexe destine a la fabrication d’un pneumatique
JP7024477B2 (ja) * 2018-02-13 2022-02-24 住友ゴム工業株式会社 タイヤの製造方法及びタイヤ
FR3086198B1 (fr) * 2018-09-20 2022-01-28 Michelin & Cie Machine de coextrusion pour melanges elastomeriques
FR3128395B1 (fr) * 2021-10-26 2023-09-29 Michelin & Cie Installation de coextrusion comprenant des cordons d’étanchéité qui sont écrasés contre le rouleau lors de la fermeture de la tête d’extrusion

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1603813A (en) * 1924-11-08 1926-10-19 Stein Jacob Apparatus for making striped rubber sheeting
US2382177A (en) * 1941-10-15 1945-08-14 Goodrich Co B F Apparatus for making composite strips
US2560022A (en) * 1947-03-26 1951-07-10 Firestone Tire & Rubber Co Readily adjustable extrusion device
US2897540A (en) * 1955-01-19 1959-08-04 Us Rubber Co Apparatus for making pneumatic tires
BE548552A (ko) * 1955-06-14 1900-01-01
US2897543A (en) * 1958-02-24 1959-08-04 Goodrich Co B F Multi-part extruder head
US2944285A (en) * 1958-06-13 1960-07-12 Us Rubber Co Apparatus for processing elastomeric material
US3142091A (en) * 1962-05-28 1964-07-28 Us Rubber Co Apparatus for making elastomeric sheet stock
US3280427A (en) * 1964-02-03 1966-10-25 Cooper Tire & Rubber Co Apparatus for extruding composite black and white rubber strips for white sidewall tires
US3439383A (en) * 1966-03-21 1969-04-22 Stauffer Chemical Co Apparatus for making ornamented tape product
US3486195A (en) * 1967-01-18 1969-12-30 Goodyear Tire & Rubber Duplex extruder head
DE1729599C3 (de) * 1967-11-02 1975-10-09 Continental Gummi-Werke Ag, 3000 Hannover StrangpreBkopf zum Strangpressen von flachen Profilsträngen aus unterschiedlichen Kautschukmischungen, insbesondere Rohlaufstreifen für Luftreifen
US3871810A (en) * 1972-11-20 1975-03-18 Uniroyal Inc Extruder and roller-die combination
US3956056A (en) * 1972-11-20 1976-05-11 Uniroyal Inc. Fabric coating by extrusion die-calendering apparatus and method
GB1590378A (en) * 1976-07-26 1981-06-03 Barwell P R G Apparatus for applying tread material to tyres
JPS5515294A (en) * 1978-07-20 1980-02-02 Fujitsu Ltd Method for welding glass tube with zinc sulfide crystal plate

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Publication number Publication date
AU561938B2 (en) 1987-05-21
CA1219109A (en) 1987-03-17
EP0139604A3 (en) 1986-02-26
DE3467526D1 (en) 1987-12-23
US4539169A (en) 1985-09-03
JPH0225773B2 (ko) 1990-06-05
AU3124284A (en) 1985-01-31
EP0139604B1 (en) 1987-11-19
EP0139604A2 (en) 1985-05-02
ZA845478B (en) 1985-03-27
JPS6054831A (ja) 1985-03-29
BR8403555A (pt) 1985-06-25
KR910005162B1 (ko) 1991-07-23

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