FR3128395B1 - Installation de coextrusion comprenant des cordons d’étanchéité qui sont écrasés contre le rouleau lors de la fermeture de la tête d’extrusion - Google Patents

Installation de coextrusion comprenant des cordons d’étanchéité qui sont écrasés contre le rouleau lors de la fermeture de la tête d’extrusion Download PDF

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Publication number
FR3128395B1
FR3128395B1 FR2111340A FR2111340A FR3128395B1 FR 3128395 B1 FR3128395 B1 FR 3128395B1 FR 2111340 A FR2111340 A FR 2111340A FR 2111340 A FR2111340 A FR 2111340A FR 3128395 B1 FR3128395 B1 FR 3128395B1
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FR
France
Prior art keywords
extrusion head
roller
closing
air gap
plant including
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR2111340A
Other languages
English (en)
Other versions
FR3128395A1 (fr
Inventor
Christophe Ougier
Miguel Torres-Castellano
Joao Alves
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Generale des Etablissements Michelin SCA
Original Assignee
Compagnie Generale des Etablissements Michelin SCA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compagnie Generale des Etablissements Michelin SCA filed Critical Compagnie Generale des Etablissements Michelin SCA
Priority to FR2111340A priority Critical patent/FR3128395B1/fr
Priority to PCT/FR2022/052015 priority patent/WO2023073315A1/fr
Publication of FR3128395A1 publication Critical patent/FR3128395A1/fr
Application granted granted Critical
Publication of FR3128395B1 publication Critical patent/FR3128395B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/0038—Moulds or cores; Details thereof or accessories therefor with sealing means or the like
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/20—Opening, closing or clamping
    • 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
    • B29C48/254—Sealing means
    • 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
    • B29C48/303—Extrusion nozzles or dies using dies or die parts movable in a closed circuit, e.g. mounted on movable endless support
    • 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
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/49—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
    • 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)
    • B29D30/08—Building tyres
    • B29D30/10—Building tyres on round cores, i.e. the shape of the core is approximately identical with the shape of the completed tyre
    • B29D30/16—Applying the layers; Guiding or stretching the layers during application
    • 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
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • 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
    • B29L2030/002—Treads

Landscapes

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

Abstract

L’invention concerne une installation (1) de coextrusion comprenant une tête d’extrusion (3) et un rouleau (5) délimitant entre eux un entrefer (6), un système de fermeture (10) comportant un mécanisme (13) à butée (14) qui est agencé pour positionner de manière reproductible la tête d’extrusion (3) par rapport au rouleau (5) afin de garantir que la hauteur de l’entrefer (H6) soit égale à une hauteur nominale (H6_set) prédéterminée, assortie d’une tolérance radiale (IT6) connue, et la tête d’extrusion (3) comprenant des joints d’étanchéité (20), formés par des cordons (21) qui délimitent axialement l’entrefer (6), qui font saillie sur la tête d’extrusion (3) de sorte à se retrouver comprimés contre le rouleau (5), d’une valeur de compression radiale qui est au moins égale à la valeur minimale d’interférence radiale (H_interf) prédéterminée. Figure 2
FR2111340A 2021-10-26 2021-10-26 Installation de coextrusion comprenant des cordons d’étanchéité qui sont écrasés contre le rouleau lors de la fermeture de la tête d’extrusion Active FR3128395B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2111340A FR3128395B1 (fr) 2021-10-26 2021-10-26 Installation de coextrusion comprenant des cordons d’étanchéité qui sont écrasés contre le rouleau lors de la fermeture de la tête d’extrusion
PCT/FR2022/052015 WO2023073315A1 (fr) 2021-10-26 2022-10-25 Installation de coextrusion comprenant des cordons d'etancheite qui sont ecrases contre le rouleau lors de la fermeture de la tete d'extrusion

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2111340 2021-10-26
FR2111340A FR3128395B1 (fr) 2021-10-26 2021-10-26 Installation de coextrusion comprenant des cordons d’étanchéité qui sont écrasés contre le rouleau lors de la fermeture de la tête d’extrusion

Publications (2)

Publication Number Publication Date
FR3128395A1 FR3128395A1 (fr) 2023-04-28
FR3128395B1 true FR3128395B1 (fr) 2023-09-29

Family

ID=79171339

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2111340A Active FR3128395B1 (fr) 2021-10-26 2021-10-26 Installation de coextrusion comprenant des cordons d’étanchéité qui sont écrasés contre le rouleau lors de la fermeture de la tête d’extrusion

Country Status (2)

Country Link
FR (1) FR3128395B1 (fr)
WO (1) WO2023073315A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1523830A (fr) * 1966-05-23 1968-05-03 Du Pont Procédé et appareil pour le moulage continu d'une résine thermoplastique en une feuille continue, et articles obtenus par ce procédé
US4539169A (en) * 1983-07-29 1985-09-03 The Goodyear Tire & Rubber Company Apparatus and method for forming a co-extrusion from extruded strips
US4683095A (en) 1985-05-08 1987-07-28 The Uniroyal Goodrich Tire Company Early progressive junction extrusion process and system
FR2700291A1 (fr) * 1993-01-08 1994-07-13 Michelin & Cie Appareil d'extrusion et procédé d'extrusion pour mélanges de caoutchouc cru.
DE19826363A1 (de) * 1998-06-12 1999-12-23 Berstorff Gmbh Masch Hermann Breitschlitzdüse zur Herstellung von Bahnen aus einem geschäumten Kunststoff
DE60116667T2 (de) * 2000-11-27 2006-11-16 Société de Technologie Michelin Extrusionsvorrichtung zur herstellung von produkten aus kautschukmischungen
FR3068281B1 (fr) * 2017-06-30 2021-01-22 Michelin & Cie Procede d'extrusion d'un profile complexe comprenant une gomme de bordure en fond de sillon

Also Published As

Publication number Publication date
WO2023073315A1 (fr) 2023-05-04
FR3128395A1 (fr) 2023-04-28

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