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FR3128395B1 - COEXTRUSION PLANT INCLUDING SEALING CORDS THAT ARE CRUSHED AGAINST THE ROLLER WHEN CLOSING THE EXTRUSION HEAD - Google Patents

COEXTRUSION PLANT INCLUDING SEALING CORDS THAT ARE CRUSHED AGAINST THE ROLLER WHEN CLOSING THE EXTRUSION HEAD 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
Authority
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
French (fr)
Other versions
FR3128395A1 (en
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/en
Priority to PCT/FR2022/052015 priority patent/WO2023073315A1/en
Publication of FR3128395A1 publication Critical patent/FR3128395A1/en
Application granted granted Critical
Publication of FR3128395B1 publication Critical patent/FR3128395B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 2The invention relates to a coextrusion installation (1) comprising an extrusion head (3) and a roller (5) defining between them an air gap (6), a closure system (10) comprising a stop mechanism (13). (14) which is arranged to reproducibly position the extrusion head (3) relative to the roller (5) in order to guarantee that the height of the air gap (H6) is equal to a predetermined nominal height (H6_set), matched with a known radial tolerance (IT6), and the extrusion head (3) comprising seals (20), formed by cords (21) which axially delimit the air gap (6), which project on the extrusion head (3) so as to find themselves compressed against the roller (5), with a radial compression value which is at least equal to the predetermined minimum value of radial interference (H_interf). Figure 2

FR2111340A 2021-10-26 2021-10-26 COEXTRUSION PLANT INCLUDING SEALING CORDS THAT ARE CRUSHED AGAINST THE ROLLER WHEN CLOSING THE EXTRUSION HEAD Active FR3128395B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2111340A FR3128395B1 (en) 2021-10-26 2021-10-26 COEXTRUSION PLANT INCLUDING SEALING CORDS THAT ARE CRUSHED AGAINST THE ROLLER WHEN CLOSING THE EXTRUSION HEAD
PCT/FR2022/052015 WO2023073315A1 (en) 2021-10-26 2022-10-25 Coextrusion installation comprising sealing beads which are squeezed against the roller during the closure of the extrusion head

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2111340A FR3128395B1 (en) 2021-10-26 2021-10-26 COEXTRUSION PLANT INCLUDING SEALING CORDS THAT ARE CRUSHED AGAINST THE ROLLER WHEN CLOSING THE EXTRUSION HEAD
FR2111340 2021-10-26

Publications (2)

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

Family

ID=79171339

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2111340A Active FR3128395B1 (en) 2021-10-26 2021-10-26 COEXTRUSION PLANT INCLUDING SEALING CORDS THAT ARE CRUSHED AGAINST THE ROLLER WHEN CLOSING THE EXTRUSION HEAD

Country Status (2)

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

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1523830A (en) * 1966-05-23 1968-05-03 Du Pont A method and apparatus for the continuous molding of a thermoplastic resin into a continuous sheet, and articles obtained by this method
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 (en) * 1993-01-08 1994-07-13 Michelin & Cie Extrusion apparatus and extrusion method for raw rubber mixtures.
DE19826363A1 (en) * 1998-06-12 1999-12-23 Berstorff Gmbh Masch Hermann Wide slot nozzle for the production of webs from a foamed plastic
ATE315464T1 (en) * 2000-11-27 2006-02-15 Michelin Soc Tech EXTRUSION DEVICE FOR PRODUCING PRODUCTS FROM RUBBER MIXTURES
FR3068281B1 (en) * 2017-06-30 2021-01-22 Michelin & Cie PROCESS FOR EXTRUSION OF A COMPLEX PROFILE INCLUDING AN EDGE GUM AT THE BOTTOM OF THE Furrow

Also Published As

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

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